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Hokkaido HCKU 1066 X4 Series, Service Manual

Introducing the Hokkaido HCKU 1066 X4 Series - a high-performance powerhouse designed to elevate your user experience. Unlock the full potential of this exceptional product by accessing its comprehensive Service Manual. Download the manual for free at manualshive.com, and gain valuable insights to optimize your device effortlessly.

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GI-36

DUAL, TRIPLE, POKER DC Inverter :  1. General Informationi

Multi Liberty

DC Inverter

 

Multi Liberty DC Inverter Outdoor Units :

HCKU 1066 X4

Summary of Contents for HCKU 1066 X4 Series

Page 1: ...4 HCKU 1066 X4 60 x 60 Cassette type Indoor Units HTFU 206 X HTFU 266 X HTFU 356 X HTFU 536 X Floor Ceiling type Indoor Units HSFU 356 X HSFU 536 X Highwall type Indoor Units HKEU 206 X HKEU 266 X HKEU 356 X HKEU 536 X Console type Indoor Units HFIU 266 X HFIU 356 X HFIU 536 X Low Ducted type Indoor Units HRBU 206 X HRBU 266 X HRBU 356 X HRBU 536 X Multi Liberty DC Inverter ...

Page 2: ...OMIC USE OF SYSTEM GI 101 2 INDOOR UNITS IU 2 2 1 HKEU X MODELS HIGHWALL TYPE IU 2 2 2 HTFU X MODELS 60 x 60 CASSETTE TYPE IU 13 2 3 HFIU X MODELS CONSOLE TYPE IU 24 2 4 HSFU X MODELS FLOOR CEILING TYPE IU 35 2 5 HRBU X MODELS LOW DUCTED TYPE IU 44 2 6 CLEANING MAINTENANCE OF INDOOR UNITS IU 55 3 OUTDOOR UNITS TROUBLESHOOTING OUT 2 3 1 SPECIFICATIONS OF MULTI LIBERTY OUTDOOR UNITS OUT 2 3 2 TROUBL...

Page 3: ...NATIONS WITH I U HKEU HTFU HFIU IG 12 1 6 CAPACITY TABLES FOR COMBINATIONS WITH I U HSFU HRBU IG 22 1 7 APPEARANCE OF INDOOR OUTDOOR UNITS IG 32 1 8 OUTLINE OF INDOOR OUTDOOR UNITS IG 37 1 9 IR REMOTE CONTROLLERS STANDARD TYPE IG 47 1 10 OPTIONAL WIRED CONTROLLERS FOR CONSOLE TYPE UNITS IG 81 1 11 OPERATION CONDITIONS FOR MULTI LIBERTY DC INVERTER SYSTEMS IG 82 1 12 DISTRIBUTION OF AIRFLOW SUPPLIE...

Page 4: ...erious personal injuries caused by electric shocks disconnect the power cable of Units before whatever intervention of repairing or maintenance WARNING In order to avoid the risk of death or of serious personal injuries caused by electric shocks NEVER tamper with the ground wire for any reason The appliance must always been equipped with a ground wire Do not remove the Safety label referred to gro...

Page 5: ...te type HTFU X Console type HFIU X Ceiling Floor type HSFU X and Low Ducted type HRBU X Indoor Units ECO NOMIC or Energy Saving function fan turns at Low speed allows to save energy consumptions and reduce operation noise level for reaching a higher comfort degree during rest On the contrary if you need to reach temperature value set by remote control quicklier on Highwall Indoor Units HKEU X it i...

Page 6: ...ange in Heating mode is 15 C â Appearance and functions Indoor Units Operation in Emergency mode also if the IR remote control is temporarily unavailable or malfunctioning in any case it will be possible to start the Indoor Units in Cooling mode Test Mode or in Auto Mode To that end it will be necessary to press the special button AUTO COOL or MANUAL placed on LED Display of each Indoor Unit Highw...

Page 7: ...tdoor Unit s heat exchanger allow to obtain a higher efficiency in heat exchange â Operation control of compressor by Sine Wave Inverter 180 technology Thanks to this kind of control on compressor operation it is possible to obtain the following A sensible reduction of noise level and vibration made by Outdoor Unit A remarkable increase in efficiency during compressor operation at low frequencies ...

Page 8: ... inside the room Follow Me function HKEU X Models only CLEAN AIR function can be activated cancelled by IR remote control Logic control of horizontal air outlet flaps HKEU X Models only Automatic control of indoor fan and of set temperature for reducing noise level and electric power consumption Automatic stop after 7 hours Automatic Sleep function Energy Saving In environments with high humidity ...

Page 9: ...een expressly redrawn Outdoor fan with Silent shape Aluminium fins of outdoor heat exchanger ensure a higher efficiency in heat exchange Special fins in treated aluminium It absorbs energy during operation in Heating mode only Protection against compressor s overload Anticorrosive surface treatment of chassis Protection covers for electrical refrigerant connections Operation in Heating mode up to ...

Page 10: ... Ducted type 2 00 HKEU 206 X HTFU 206 X HRBU 206 X 2 60 HKEU 266 X HTFU 266 X HFIU 266 X HRBU 266 X 3 50 HKEU 356 X HTFU 356 X HFIU 356 X HSFU 356 X HRBU 356 X 5 30 HKEU 536 X HTFU 536 X HFIU 536 X HSFU 536 X HRBU 536 X Outdoor Units kW Dual Triple Poker 4 00 HCKU 406 X2 5 30 HCKU 536 X2 6 00 HCKU 606 X3 7 00 HCKU 706 X4 8 00 HCKU 806 X3 8 10 HCKU 816 X4 10 60 HCKU 1066 X4 ...

Page 11: ...6 266 266 356 266 536 536 536 206 356 206 536 206 206 266 266 206 266 266 356 356 356 356 536 266 536 206 356 206 536 266 356 206 266 356 536 206 266 356 536 206 266 356 536 Note In combinations with this Outdoor Unit it is possible to connect only one Indoor Unit HTFU X HFIU X HSFU X HRBU X Note In combinations with this Outdoor Unit it is possible to connect only one Indoor Unit HTFU X HFIU X HS...

Page 12: ...266 266 266 266 266 266 206 206 206 266 206 206 266 356 266 266 266 356 206 206 206 356 206 266 266 266 206 266 266 356 4 I U Combinations of Indoor Units with Outdoor Unit HCKU 816 X4 206 206 206 206 266 356 206 206 266 206 206 356 206 266 536 206 356 356 356 356 356 266 266 356 266 366 536 206 206 536 206 206 266 266 206 266 266 356 356 356 356 536 536 536 266 536 206 356 206 536 206 266 356 536...

Page 13: ...206 266 266 206 266 356 266 266 536 266 266 266 266 266 356 206 356 356 356 356 536 356 536 536 206 266 536 1 I U 2 I U 3 I U 206 206 206 206 206 206 266 266 266 266 356 356 206 206 206 266 206 206 266 266 206 206 266 536 266 266 356 536 206 206 206 356 206 206 536 536 206 266 266 266 206 206 206 536 206 266 266 356 266 356 356 356 266 356 356 536 356 356 356 356 356 356 356 536 206 206 266 356 20...

Page 14: ... B Min Std Max Min Std Max 1x1 206 2 45 1 59 2 54 3 09 0 45 0 70 0 88 350 3 64 A 266 2 92 1 87 3 03 3 71 0 54 0 83 1 05 415 3 65 A 356 3 75 2 33 3 89 4 73 0 68 1 05 1 32 525 3 71 A 1x2 206 206 2 20 2 20 1 85 4 57 5 59 0 49 1 23 1 54 614 3 72 A 206 266 1 98 2 58 1 92 4 74 5 79 0 50 1 26 1 58 630 3 76 A 206 356 1 79 2 86 1 95 4 83 5 81 0 51 1 27 1 61 635 3 80 A 266 266 2 33 2 33 1 95 4 83 5 81 0 51 ...

Page 15: ...2 6 78 8 48 0 89 2 09 2 95 1045 3 24 A 356 356 3 19 3 19 2 68 6 22 7 78 0 80 1 87 2 64 937 3 32 A 1x3 206 206 206 2 05 2 05 2 05 2 58 6 00 7 44 0 76 1 80 2 54 899 3 34 A 206 206 266 1 93 1 93 2 51 2 68 6 22 7 72 0 78 1 85 2 60 923 3 37 A 206 206 356 1 84 1 84 2 94 2 78 6 46 8 01 0 82 1 94 2 73 970 3 33 A 206 266 266 1 84 2 39 2 39 2 78 6 46 8 01 0 81 1 91 2 70 956 3 38 A 206 266 356 1 78 2 32 2 85...

Page 16: ...32 A 206 356 2 07 3 31 2 26 5 51 6 62 0 67 1 63 2 14 817 3 37 A 206 536 2 05 5 45 3 15 7 69 9 23 0 94 2 31 2 95 1155 3 33 A 266 266 2 70 2 70 2 27 5 54 6 64 0 67 1 63 2 14 817 3 39 A 266 356 2 68 3 30 2 51 6 13 7 30 0 74 1 80 2 36 900 3 40 A 266 536 2 57 5 23 3 28 8 00 9 52 0 96 2 35 2 93 1174 3 40 A 356 356 3 42 3 42 2 87 7 01 8 28 0 85 2 07 2 72 1037 3 38 A 356 536 3 01 4 99 3 36 8 20 9 68 1 01 ...

Page 17: ...3 A 266 356 356 2 63 3 24 3 24 3 82 9 05 11 01 1 00 2 37 3 08 1185 3 82 A Unit A Unit B Unit C Unit D Unit A Unit B Unit C Unit D Min Std Max Min Std Max 1x1 206 2 30 1 38 2 29 2 88 0 50 0 69 1 03 345 3 32 A 266 2 70 1 62 2 69 3 38 0 58 0 81 1 21 404 3 33 A 356 3 46 2 08 3 45 4 33 0 74 1 03 1 54 517 3 33 A 536 5 35 3 21 5 33 6 69 1 14 1 59 2 36 793 3 36 A 1x2 206 206 2 21 2 21 1 85 4 39 5 42 0 58 ...

Page 18: ...2 7 37 0 71 1 65 2 37 823 3 66 A 206 356 2 55 4 09 2 79 6 62 8 10 0 77 1 79 2 58 893 3 71 A 206 536 2 29 6 07 3 51 8 34 10 20 0 96 2 24 3 23 1121 3 72 A 266 266 3 32 3 32 2 79 6 62 8 10 0 77 1 78 2 56 888 3 73 A 266 356 3 08 3 78 2 88 6 84 8 37 0 79 1 83 2 63 916 3 73 A 266 536 2 77 5 65 3 54 8 40 10 27 0 95 2 22 3 20 1112 3 78 A 356 356 3 58 3 58 3 00 7 13 8 72 0 82 1 91 2 75 954 3 74 A 356 536 3...

Page 19: ...9 2 64 6 43 7 66 0 79 1 98 2 67 990 3 25 A 206 206 266 2 21 2 21 2 88 3 07 7 47 8 91 0 91 2 28 3 07 1141 3 27 A 206 206 356 2 10 2 10 3 36 3 18 7 74 9 22 0 94 2 37 3 18 1186 3 26 A 206 206 536 1 86 1 86 4 93 3 63 8 85 10 55 1 07 2 68 3 60 1342 3 30 A 206 266 266 2 10 2 68 2 68 3 18 7 74 9 22 0 93 2 34 3 15 1171 3 30 A 206 266 356 2 02 2 63 3 23 3 31 8 07 9 61 0 98 2 45 3 29 1226 3 29 A 206 266 536...

Page 20: ...3 2 33 3 13 1164 3 68 A 536 536 4 41 4 41 3 70 9 03 10 76 1 00 2 50 3 36 1248 3 62 A 1x3 206 206 206 2 28 2 28 2 28 2 88 7 01 8 36 0 76 1 89 2 54 945 3 71 A 206 206 266 2 36 2 36 3 06 3 27 7 97 9 49 0 86 2 15 2 89 1074 3 71 A 206 206 356 2 32 2 32 3 72 3 51 8 56 10 20 0 92 2 29 3 09 1144 3 74 A 206 206 536 2 02 2 02 5 35 3 94 9 60 11 44 1 04 2 58 3 47 1288 3 73 A 206 266 266 2 32 2 68 2 68 3 51 8 ...

Page 21: ...3 B 356 356 3 14 3 14 2 57 6 34 7 60 0 89 2 05 2 59 1023 3 10 B 356 536 3 07 5 08 3 34 8 23 9 86 1 17 2 71 3 43 1353 3 04 B 536 536 5 25 5 25 4 31 10 60 12 71 1 48 3 41 4 33 1707 3 10 B 1x3 206 206 206 2 09 2 09 2 09 2 57 6 34 7 60 0 89 2 07 2 62 1033 3 07 B 206 206 266 2 19 2 19 2 84 2 96 7 29 8 74 1 02 2 37 3 00 1184 3 08 B 206 206 356 2 01 2 01 3 21 2 96 7 29 8 74 1 03 2 39 3 03 1193 3 05 B 206...

Page 22: ...4 85 11 95 14 21 1 59 3 67 4 61 1833 3 26 A 266 266 266 266 2 63 2 63 2 63 2 63 4 31 10 60 12 81 1 38 3 35 4 32 1675 3 16 B 266 266 266 356 2 61 2 61 2 61 3 21 4 53 11 15 13 26 1 52 3 51 4 42 1756 3 18 B 266 266 266 536 2 29 2 29 2 29 4 66 4 72 11 63 13 82 1 57 3 63 4 56 1814 3 20 A 266 266 356 356 2 48 2 48 3 05 3 05 4 53 11 15 13 26 1 51 3 49 4 39 1746 3 19 B 266 266 356 536 2 25 2 25 2 77 4 58 ...

Page 23: ... 36 3 77 4 56 11 44 13 13 1 40 3 35 4 27 1677 3 41 B 206 206 206 536 1 98 1 98 1 98 5 23 4 69 11 76 13 50 1 36 3 26 4 15 1629 3 61 A 206 206 266 266 2 36 2 36 3 07 3 07 4 56 11 44 13 13 1 35 3 23 4 11 1615 3 54 B 206 206 266 356 2 27 2 27 2 94 3 62 4 66 11 70 13 43 1 35 3 24 4 13 1620 3 61 A 206 206 266 536 1 88 1 88 2 44 4 97 4 69 11 76 13 50 1 36 3 26 4 15 1629 3 61 A 206 206 356 356 2 13 2 13 3...

Page 24: ...nit B Unit A Unit B Min Std Max Min Std Max 1x1 206 2 30 1 40 2 34 3 24 0 41 0 71 0 92 354 3 31 A 266 2 70 1 57 2 75 3 27 0 46 0 81 1 07 407 3 38 A 356 3 48 1 95 3 55 4 56 0 59 1 06 1 41 528 3 36 A 536 5 15 3 19 5 25 6 23 0 92 1 60 2 03 800 3 28 A 1x2 206 206 2 16 2 16 1 81 4 40 5 62 0 53 1 29 1 66 644 3 42 A 206 266 2 07 2 68 2 00 4 84 6 08 0 58 1 41 1 83 703 3 44 A 206 356 2 07 3 31 2 26 5 48 6 ...

Page 25: ...9 2 95 1045 3 24 A 356 356 3 19 3 19 2 68 6 22 7 78 0 80 1 87 2 64 937 3 32 A 1x3 206 206 206 2 05 2 05 2 05 2 58 6 00 7 44 0 76 1 80 2 54 899 3 34 A 206 206 266 1 93 1 93 2 51 2 68 6 22 7 72 0 78 1 85 2 60 923 3 37 A 206 206 356 1 84 1 84 2 94 2 78 6 46 8 01 0 82 1 94 2 73 970 3 33 A 206 266 266 1 84 2 39 2 39 2 78 6 46 8 01 0 81 1 91 2 70 956 3 38 A 266 266 266 2 32 2 32 2 32 2 92 6 78 8 41 0 86...

Page 26: ...266 2 70 2 70 2 27 5 54 6 64 0 67 1 63 2 14 817 3 39 A 266 356 2 68 3 30 2 51 6 13 7 30 0 74 1 80 2 36 900 3 40 A 266 536 2 57 5 23 3 28 8 00 9 52 0 96 2 35 2 93 1174 3 40 A 356 356 3 42 3 42 2 87 7 01 8 28 0 85 2 07 2 72 1037 3 38 A 356 536 3 01 4 99 3 36 8 20 9 68 1 01 2 47 3 07 1233 3 32 A 1x3 206 206 206 2 18 2 18 2 18 2 75 6 70 7 91 0 81 1 99 2 60 993 3 37 A 206 206 266 2 04 2 04 2 65 2 82 6 ...

Page 27: ...9 00 10 95 0 99 2 35 3 05 1175 3 83 A 266 356 356 2 63 3 24 3 24 3 82 9 05 11 01 1 00 2 37 3 08 1185 3 82 A A B C D A B C D Min Std Max Min Std Max 1x1 206 2 30 1 38 2 29 2 88 0 50 0 69 1 03 345 3 32 A 266 2 70 1 62 2 69 3 38 0 58 0 81 1 21 404 3 33 A 356 3 46 2 08 3 45 4 33 0 74 1 03 1 54 517 3 33 A 536 5 35 3 21 5 33 6 69 1 14 1 59 2 36 793 3 36 A 1x2 206 206 2 21 2 21 1 85 4 39 5 42 0 58 1 31 1...

Page 28: ...77 5 65 3 54 8 40 10 27 0 95 2 22 3 20 1112 3 78 A 356 356 3 58 3 58 3 00 7 13 8 72 0 82 1 91 2 75 954 3 74 A 356 536 3 15 5 21 3 51 8 34 10 20 0 94 2 20 3 16 1098 3 80 A 1x3 206 206 206 2 28 2 28 2 28 2 88 6 83 8 36 0 77 1 79 2 57 893 3 83 A 206 206 266 2 36 2 36 3 06 3 27 7 76 9 49 0 86 2 01 2 89 1005 3 86 A 206 206 356 2 32 2 32 3 72 3 51 8 34 10 20 0 94 2 19 3 16 1093 3 81 A 206 206 536 2 02 2...

Page 29: ...06 266 536 1 81 2 35 4 80 3 76 9 17 10 93 1 12 2 81 3 78 1407 3 26 A 206 356 356 1 93 3 09 3 09 3 41 8 31 9 91 1 00 2 52 3 38 1262 3 29 A 206 356 536 1 72 2 75 4 55 3 79 9 23 11 00 1 11 2 79 3 75 1397 3 30 A 266 266 266 2 63 2 63 2 63 3 31 8 07 9 61 0 98 2 46 3 31 1231 3 27 A 266 266 356 2 51 2 51 3 09 3 41 8 31 9 91 1 01 2 54 3 41 1272 3 27 A 266 266 536 2 23 2 23 4 55 3 79 9 23 11 00 1 12 2 80 3...

Page 30: ...66 536 1 98 2 57 5 24 4 11 10 01 11 93 1 09 2 71 3 65 1353 3 70 A 206 356 356 2 11 3 38 3 38 3 72 9 07 10 81 0 98 2 45 3 30 1223 3 71 A 206 356 536 1 89 3 02 5 01 4 17 10 16 12 10 1 11 2 76 3 72 1382 3 67 A 266 266 266 2 84 2 84 2 84 3 58 8 72 10 39 0 94 2 35 3 16 1174 3 72 A 266 266 356 2 74 2 74 3 38 3 72 9 07 10 81 1 00 2 48 3 33 1238 3 66 A 266 266 536 2 46 2 46 5 01 4 17 10 16 12 10 1 11 2 75...

Page 31: ...7 B 266 266 356 2 52 2 52 3 10 3 34 8 23 9 86 1 16 2 67 3 39 1334 3 08 B 266 266 536 2 60 2 60 5 30 4 31 10 60 12 71 1 45 3 35 4 25 1673 3 17 B 266 356 356 2 82 3 47 3 47 4 00 9 84 11 80 1 35 3 12 3 96 1562 3 15 B 266 356 536 2 13 2 62 4 34 3 73 9 18 11 00 1 25 2 88 3 65 1441 3 18 B 266 536 536 2 33 4 75 4 75 4 85 11 95 14 33 1 60 3 70 4 68 1848 3 23 A 356 356 356 3 25 3 25 3 25 4 00 9 84 11 80 1 ...

Page 32: ... 61 3 61 3 03 7 61 8 88 0 97 2 33 3 04 1164 3 27 C 356 536 3 32 5 50 3 70 9 30 10 85 0 99 2 37 3 09 1184 3 93 A 536 536 5 55 5 55 4 66 11 70 13 65 1 38 3 32 4 32 1658 3 53 B 1x3 206 206 206 2 28 2 28 2 28 2 87 7 21 8 41 0 94 2 25 2 94 1126 3 20 C 206 206 266 2 19 2 19 2 84 3 03 7 61 8 88 0 94 2 26 2 95 1131 3 36 C 206 206 356 2 40 2 40 3 84 3 63 9 12 10 64 1 12 2 68 3 50 1342 3 40 C 206 206 536 2 ...

Page 33: ... 64 A 206 206 536 536 1 82 1 82 4 81 4 81 5 57 13 97 16 03 1 58 3 78 4 81 1888 3 70 A 206 266 266 266 2 27 2 94 2 94 2 94 4 66 11 70 13 43 1 35 3 24 4 13 1620 3 61 A 206 266 266 356 2 13 2 78 2 78 3 42 4 66 11 70 13 43 1 35 3 24 4 13 1620 3 61 A 206 266 266 536 1 86 2 42 2 42 4 93 4 88 12 26 14 07 1 41 3 36 4 29 1682 3 64 A 206 266 356 356 2 03 2 64 3 25 3 25 4 69 11 76 13 50 1 36 3 26 4 15 1629 3...

Page 34: ...GI 32 DUAL TRIPLE POKER DC Inverter 1 General Informationi Multi Liberty DC Inverter 1 7 APPEARANCE OF INDOOR OUTDOOR UNITS HIGHWALL type Indoor Units HKEU 206 X 266 X HKEU 356 X HKEU 536 X ...

Page 35: ...GI 33 DUAL TRIPLE POKER DC Inverter 1 General Informationi Multi Liberty DC Inverter 60 x 60 CASSETTE type Indoor Units CONSOLE type Indoor Units HTFU 206 X 266 X 356 X 536 X HFIU 266 X 356 X 536 X ...

Page 36: ...GI 34 DUAL TRIPLE POKER DC Inverter 1 General Informationi Multi Liberty DC Inverter FLOOR CEILING type Indoor Units LOW DUCTED type Indoor Units HSFU 356 X 536 X HRBU 206 X 266 X 356 X HRBU 536 X ...

Page 37: ...GI 35 DUAL TRIPLE POKER DC Inverter 1 General Informationi Multi Liberty DC Inverter Multi Liberty DC Inverter Outdoor Units HCKU 536 X2 HCKU 606 X3 HCKU 806 X3 HCKU 706 X4 HCKU 816 X4 HCKU 406 X2 ...

Page 38: ...GI 36 DUAL TRIPLE POKER DC Inverter 1 General Informationi Multi Liberty DC Inverter Multi Liberty DC Inverter Outdoor Units HCKU 1066 X4 ...

Page 39: ...ant pipings 13 Wiring between Units 14 Service valves 15 Fan hood 1 Frontal panel frame 2 Rear air inlet grille 3 Unit s frontal panel 4 Air filter net type 5 Motorized air outlet flaps 6 LED Display IR Receiver 7 Vertical airflow louver manual adjustment 8 Manual button Emergency Test 9 Condensate drain pipe 10 Remote controller holder 11 IR remote control The Figure below is for explanation only...

Page 40: ... the zones illuminate gradually Outline of Display Panel on Multi Liberty Highwall type Indoor Units HKEU X It lights up if a Timer function is set TIMER automatic start and or stop of air conditioner included SLEEP function Energy Saving function It lights up when ioniser device integrated in Indoor Unit is activated by remote control It lights up when TURBO function is selected by remote control...

Page 41: ...tric box 8 Square bracket 9 Drain pipe socket 11 IR remote controller 10 Refrigerant pipings fittings 12 Remote controller holder Multi Liberty 60 x 60 Cassette type Indoor Units HTFU X 1 1 1 2 1 3 1 4 Outdoor Unit Indoor Unit Outdoor Unit Indoor Unit A Indoor Unit B Indoor Unit C Indoor Unit D Example HCKU 706 X4 Air inlet 8 12 11 7 Air outlet IR Signal Transmitter Display Panel 1 2 5 6 4 3 9 10 ...

Page 42: ...rgency Test To start the air conditioner in Automatic mode when the remote controller is not available and to start the Test mode in Cooling operation Buzzer It emits a sound when a signal from IR remote control is received by the Indoor Unit IR signal receiver It permits to receive signals from IR remote control 1 2 3 4 5 6 2 3 4 1 5 6 7 MANUAL OPERATION TIMER DEF FAN ALARM OPERATION LED Green 1 ...

Page 43: ...laps Air inlet Wall fixing Unit side 1 6 7 1 3 4 5 Air inlet Air inlet Air inlet Air inlet Air outlet Air outlet 2 Indoor Unit Outdoor Unit Indoor Unit A Indoor Unit B Indoor Unit C Indoor Unit D Example HCKU 706 X4 Multi Liberty Console type Indoor Unit HFIU X 1 1 1 2 1 3 1 4 8 9 7 8 Air inlet Air inlet Air outlet Outdoor Unit The Figure below is for explanation only The real appearance of the co...

Page 44: ...hen TIMER function is selected automatic start and or stop of the air conditioner MANUAL button Emergency Test To start the air conditioner in Automatic mode when the remote controller is not available and to start the Test mode in Cooling operation If control electronics detects the conditions required for start of Automatic Defrosting see Section CF Control Functions of this Service Manual defro...

Page 45: ...w the grille 5 Refrigerant pipings fittings 6 Drain pipe socket 7 LED display IR receiver 8 IR remote controller 9 Remote controller holder Multi Liberty Floor Ceiling type Indoor Units HSFU X 1 1 1 2 1 3 1 4 Outdoor Unit Indoor Unit Unità Esterna Indoor Unit A Indoor Unit B Indoor Unit C Indoor Unit D Example HCKU 706 X4 Air inlet 9 8 IR signal receiver Display Panel 7 MANUAL ALARM DEF FAN TIMER ...

Page 46: ...LED flashes to indicate that a malfunction has occurred on the system To identify the kind of malfunction please check the Error Protection Codes shown by 2 digit LED display on Outdoor Unit s PCB Normal operation of air conditioner can be restored as soon as malfunction is solved If control electronics detects the conditions required for start of Automatic Defrosting see Section CF Control Functi...

Page 47: ... Drain pipe socket 7 LED display IR receiver separated from Unit s body 8 IR remote controller 9 Remote controller holder Multi Liberty Low Ducted type Indoor Units HRBU X 1 1 1 2 1 3 1 4 Outdoor Unit Indoor Unit Outdoor Unit Indoor Unit A Indoor Unit B Indoor Unit C Indoor Unit D Example HCKU 706 X4 Air inlet 2 Display Panel 1 7 3 Air outlet 5 6 4 9 8 IR signal transmitter TEMP CLOCK SPEED MO DE ...

Page 48: ...ceived by the Indoor Unit IR signal receiver It permits to receive signals from IR remote control 1 2 3 4 5 6 2 3 4 1 5 6 7 MANUAL OPERATION TIMER DEF FAN ALARM OPERATION LED Green 1 2 TIMER LED Green 3 DEF FAN LED Red 4 ALARM LED Red 7 If control electronics detects the conditions required for start of Automatic Defrosting see Section CF Control Functions of this Service Manual defrosting automat...

Page 49: ...GI 47 DUAL TRIPLE POKER DC Inverter 1 General Informationi Multi Liberty DC Inverter 1 9 IR REMOTE CONTROLLERS STANDARD TYPE For HKEU 206 266 356 536 X Models R51I4 BGE ...

Page 50: ...ller is placed sideways as regards the signal receiver it will operate within a max angle of 30 on the right or on the left from the receiver If the remote controller id fixed on its wall bearing it will work within a side distance of 0 5 metres on the right or on the left from the receiver 5 If the infrared receiver on Indoor Unit is exposed to direct sunlight the remote controller and consequent...

Page 51: ... not to use the air conditioner for a long time remove the batteries as they may damage the case and electrical contacts acid may leak The average life of a pair of new batteries is of 6 months and may vary according to the use Batteries have to be replaced if the signal transmission indicator on remote controller does not light up any more or if the confirmation sound emitted by Indoor Unit s buz...

Page 52: ...ion in FAN mode 1 TEMP button 4 DIRECTION SWING button It allows to change the angle of motorized flap for airflow distribution If you keep this button pressed for more than 2 seconds you can start stop automatic swinging of motorized flap 5 RESET button Press this button if you want to restore normal operation of remote controller in case of problems or after replacing batteries ADJUST AUTO COOL ...

Page 53: ...ivate or cancel energy saving function by automatic and gradual correction of set temperature This function can be activated in AUTO COOL and HEAT modes It is possible to cancel SLEEP function by pressing whatever button on remote controller The default duration of SLEEP function is 7 hours 12 TIMER OFF button To program the air conditioner s automatic stop Each time the button is pressed programm...

Page 54: ...controller Activation of this temperature sensor allows to detect ambient temperature as it is perceived by the User on condition that infrared remote controller is positioned at a little distance from the User itself Ambient temperature sensor integrated in IR remote controller can be activated in COOL and HEAT modes only 15 AIR CLEAN button To activate deactivate ionizer device generating anions...

Page 55: ...rted ON by IR remote controller If ON OFF indicator is not displayed this indicates that Indoor Unit has been stopped OFF by IR remote controller 4 OPERATION MODE indicators They show the current selected operation mode AUTO COOL DRY HEAT FAN 5 LOCK indicator It indicates that buttons LOCK function is activated 6 TIMER indicators They indicate that TIMER function is active TIMER ON Automatic progr...

Page 56: ...Informationi Multi Liberty DC Inverter n OUTLINE OF REMOTE CONTROLLER S DISPLAY TIMER ON OFF 8 FOLLOW ME indicator When this indicator is displayed it indicates that ambient temperature sensor integrated in IR remote controller has been activated 8 ...

Page 57: ...GI 55 DUAL TRIPLE POKER DC Inverter 1 General Informationi Multi Liberty DC Inverter For HTFU 206 266 356 536 X Models R11HG E ...

Page 58: ... itself In this case operation range of remote controller is remarkably reduced 4 If the remote controller is placed sideways as regards the signal receiver it will operate within a max angle of 30 on the right or on the left from the receiver If the remote controller id fixed on its wall bearing it will work within a side distance of 0 5 metres on the right or on the left from the receiver 5 If t...

Page 59: ...ain check if on remote controller s display sideways CLOCK indication 0 00 is displayed with flashing colon After replacing batteries it is needed to set current time again see below Note Insert only 2 new batteries and of the same brand If you foresee not to use the air conditioner for a long time remove the batteries they may damage the case and the electrical contacts as acid can leak The avera...

Page 60: ...ch time the button is pressed one of the following modes will be selected in sequence This button is used to select fan speed Each time the button is pressed fan speed indicator changes as follows ON OFF BUTTON Push the button to start operation Push the button again to stop operation TEMP BUTTONS Press this button to raise set point temperature up to 30 C Press this button to decrease set point t...

Page 61: ...on again when you want to disable the lock mode ECONOMIC RUNNING BUTTON Press this button to select Energy Saving mode ON OFF TIMER BUTTONS Push TIMER ON button to set the air conditioner s start time Push TIMER OFF button to set the air conditioner s stop time TIME ADJUST BUTTONS Press these buttons to set current time andTIMER ON OFF time CANCEL BUTTON Press this button to cancel the current set...

Page 62: ... if locking of settings has been activated FAN SPEED indicator ECO indicator It lights up if ECO Energy Saving mode has been selected It shows the current selected fan speed AUTO Automatic speed LOW Low speed MED Medium speed HIGH High speed This indicator blinks when signals are sent to the Indoor Unit by the remote controller The current operation mode is shown AUTO COOL DRY HEAT FAN Note In the...

Page 63: ...GI 61 DUAL TRIPLE POKER DC Inverter 1 General Informationi Multi Liberty DC Inverter For HFIU 266 356 536 X Models R51D E ...

Page 64: ... itself In this case operation range of remote controller is remarkably reduced 4 If the remote controller is placed sideways as regards the signal receiver it will operate within a max angle of 30 on the right or on the left from the receiver If the remote controller id fixed on its wall bearing it will work within a side distance of 0 5 metres on the right or on the left from the receiver 5 If t...

Page 65: ...ated in the battery case After replacing the batteries it is necessary to press RESET button on remote controller see further on NOTE Always insert 2 new batteries of the same brand Avoid the use of reachargeable batteries If you foresee not to use the air conditioner for a long time remove the batteries as they may damage the case and electrical contacts acid may leak The average life of a pair o...

Page 66: ...rature by 1 C 3 MODE button Every time you press this button the selected operation mode changes in sequence as indicated AUTO Operation in AUTOMATIC mode COOL Operation in COOLING mode DRY Operation in DEHUMIDIFYING mode HEAT Operation in HEATING mode FAN Operation in FAN mode 1 TEMP button 4 SWING button For starting stopping the automatic swinging of motorized air outlet flaps 5 RESET button Pr...

Page 67: ...N function set time to 00 To activate or cancel energy saving function with indoor fan operating at LOW speed 12 TIMER OFF button To program the air conditioner s automatic stop Each time the button is pressed programmed time interval is increased by 30 minutes from 0 to 10 hours and by 60 minutes from 10 to 24 hours To cancel TIMER OFF function set time to 00 To lock unlock remote controller s bu...

Page 68: ... remotw controller sends a signal to Indoor Unit 3 ON OFF indicator If this indicator lights up it shows that Indoor Unit has been started ON by IR remote controller If ON OFF indicator is not displayed this indicates that Indoor Unit has been stopped OFF by IR remote controller 4 OPERATION MODE indicators They show the current selected operation mode AUTO COOL DRY HEAT FAN 5 LOCK indicator It ind...

Page 69: ...E CONTROLLER S DISPLAY TIMER ON OFF 7 7 FAN SPEED indicator It shows the currently selected speed for indoor fan In AUTO and DRY modes there is no display of fan set speed as the setting cannot be modified by the User The displayed indications are the following HIGH HIGH speed MED MEDIUM speed LOW LOW speed ...

Page 70: ...GI 68 DUAL TRIPLE POKER DC Inverter 1 General Informationi Multi Liberty DC Inverter For HSFU 356 536 X Models R05 BGE ...

Page 71: ... itself In this case operation range of remote controller is remarkably reduced 4 If the remote controller is placed sideways as regards the signal receiver it will operate within a max angle of 30 on the right or on the left from the receiver If the remote controller id fixed on its wall bearing it will work within a side distance of 0 5 metres on the right or on the left from the receiver 5 If t...

Page 72: ... again check if on remote controller s display sideways CLOCK indication 0 00 is displayed with flashing colon After replacing batteries it is needed to set current time again see below Note Insert only 2 new batteries and of the same brand If you foresee not to use the air conditioner for a long time remove the batteries they may damage the case and the electrical contacts as acid can leak The av...

Page 73: ...E button Each time the button is pressed the selected operation mode changes according to the following sequence AUTO Operation in AUTOMATIC mode COOL Operation in COOLING mode DRY Operation in DEHUMIDIFYING mode HEAT Operation in HEATING mode FAN Operation in FAN only mode AUTO COOL DRY HEAT FAN 13 8 15 16 14 11 10 9 1 3 5 7 12 2 4 6 ...

Page 74: ...button if you need to set current time For example after replacing batteries or after pressing RESET button 6 AIR DIRECTION button For changing stop angle for air outlet flap according to the User s comfort needs 2 FAN SPEED button To change the indoor fan speed The available settings are the following AUTO AUTOMATIC speed LOW LOW speed MED MEDIUM speed HIGH HIGH speed 5 ON OFF button To start or ...

Page 75: ...r fan operating at LOW speed 15 C H button To configure IR remote controller so that it can be used with Indoor Units cooling only type C setting COOL or with heating pump type Indoor Units H setting HEAT PUMP Press this button if it is needed to restore normal operation of remote controller in case of problems or after replacing batteries In both cases remote controller is initialized again there...

Page 76: ...ving function has been selected The segments light up progressively according to the selected fan speed AUTO Automatic speed LOW Low speed MED Medium speed HIGH High speed It blinks if remote controller is sending signals to Indoor Unit They light up according to the selected operation mode AUTO COOL DRY HEAT FAN AUTO COOL DRY HEAT FAN TEMP SET CLOCK SET HOUR FAN SPEED ON OFF Transmission indicato...

Page 77: ...GI 75 DUAL TRIPLE POKER DC Inverter 1 General Informationi Multi Liberty DC Inverter For HRBU 206 266 356 536 X Models R11HG E ...

Page 78: ...sion to Indoor Unit itself In this case operation range of remote controller is remarkably reduced 4 If the remote controller is placed sideways as regards the signal receiver it will operate within a max angle of 30 on the right or on the left from the receiver If the remote controller id fixed on its wall bearing it will work within a side distance of 0 5 metres on the right or on the left from ...

Page 79: ...ain check if on remote controller s display sideways CLOCK indication 0 00 is displayed with flashing colon After replacing batteries it is needed to set current time again see below Note Insert only 2 new batteries and of the same brand If you foresee not to use the air conditioner for a long time remove the batteries they may damage the case and the electrical contacts as acid can leak The avera...

Page 80: ...ch time the button is pressed one of the following modes will be selected in sequence This button is used to select fan speed Each time the button is pressed fan speed indicator changes as follows ON OFF BUTTON Push the button to start operation Push the button again to stop operation TEMP BUTTONS Press this button to raise set point temperature up to 30 C Press this button to decrease set point t...

Page 81: ...on again when you want to disable the lock mode ECONOMIC RUNNING BUTTON Press this button to select Energy Saving mode ON OFF TIMER BUTTONS Push TIMER ON button to set the air conditioner s start time Push TIMER OFF button to set the air conditioner s stop time TIME ADJUST BUTTONS Press these buttons to set current time andTIMER ON OFF time CANCEL BUTTON Press this button to cancel the current set...

Page 82: ... if locking of settings has been activated FAN SPEED indicator ECO indicator It lights up if ECO Energy Saving mode has been selected It shows the current selected fan speed AUTO Automatic speed LOW Low speed MED Medium speed HIGH High speed This indicator blinks when signals are sent to the Indoor Unit by the remote controller The current operation mode is shown AUTO COOL DRY HEAT FAN Note In the...

Page 83: ... Inverter 1 General Informationi Multi Liberty DC Inverter 1 10 OPTIONAL WIRED CONTROLLERS FOR CONSOLE TYPE UNITS DTW IHXR Wired Controller DTWS IHXR Wired Controller With integrated ambient temperature sensor FOLLOW ME function ...

Page 84: ... In both cases please contact the Authorized Technical Service to require frequent maintenance Use of the air conditioner out of the above mentioned temperature ranges could cause the intervention of built in protective functions consequently stopping the system operation Room relative humidity must always be lower than 80 Otherwise condensate may drip inside the installation room during operation...

Page 85: ...ving 10 seconds later as soon as it gets under control of the inner electronics When the air conditioner is stopped the motorized louver will automatically stop in closing position If the motorized louver malfunctions it is adviced to turn off the air conditioner and cut the power for some minutes then restore the power turn the Unit on again and check if the louver works properly Open angle of th...

Page 86: ... adjustment of vertical grille rightside leftside Before you start press DIRECTION SWING button to adjust vertical flap to middle position In this way you will have access to the levers on the airflow grille laying behind move them to your desired position as it is shown in the Figure Take care not to put your fingers inside air outlet as you may get hurt by heat exchanger s sharp fins No automati...

Page 87: ...orized louver will start moving 10 seconds later as soon as it gets under control of the inner electronics When the air conditioner is stopped the motorized louver will automatically stop in closing position Press AIR DIRECTION button on remote controller several times till reaching your desired angle for air outlet louver The Figures below show the recommended position for air outlet flaps accord...

Page 88: ...g performance may be impaired due to too restricted airflow area Room temperature humidity should be less than 80 If the air conditioner operates beyond this limit the surface of indoor heat exchanger could get covered with frost in this case adjust the louver to the maximum open angle and select HIGH fan speed When the air conditioner is connected to power initial power the horizontal louver may ...

Page 89: ...upply air from both air outlets factory default or from upper air outlet only Open the Indoor Unit s frontal panel to reach the selector WARNING Before opening the Indoor Unit s frontal panel switch off the air conditioner and disconnect it from the power source Take care not to touch the metal o plastic sharp components inside Unit as you may get hurt Factory default Indoor Unit automatically adj...

Page 90: ...own in the following Figures according to the selected operation mode Press AIR DIRECTION button on remote controller several times till reaching your desired angle for motorized flaps A correct adjustment allows to reach a higher degree of comfort The selected angle will be kept in memory at next restart of Indoor Unit Press SWING button on remote controller motorized flaps will move continuously...

Page 91: ...inging of louvers is not available rightside to leftside and vice versa WARNING The direction of motorized flaps must be adjusted by pressing the relevant button on remote controller only Never apply force on flaps by orienting them by hand in order to avoid to damage the adjustment mechanism of flaps themselves If flaps do not move properly try to turn off the air conditioner and then turn it on ...

Page 92: ...s operating Press SWING button on remote controller air outlet horizontal flaps will start moving as it is shown in the Figure below To stop automatic swinging of air outlet flaps upwards to downwards and vice versa press again SWING button on remote controller horizontal flaps will stop to swing and fixed stop position of flaps themselves will be restored The selected angle for airflow will be ke...

Page 93: ...pen angle of the horizontal louver should not be set to small as cooling drying or heating performance may be impaired due to too restricted airflow area Room temperature humidity should be less than 80 If the air conditioner operates beyond this limit the surface of indoor heat exchanger could get covered with frost in this case adjust the louver to the maximum open angle and select HIGH fan spee...

Page 94: ...r WARNING When the air conditioner is connected to power initial power the horizontal louver may generate a sound for about 10 secondi this is a normal operation To avoid malfunctions never attempt to move the motorized flaps by hand but always use the remote controller for doing this ...

Page 95: ...ow show some exemples of manual adjustment of horizontal flaps In whatever operation mode it is very important to orient the horizontal flaps on air outlet vents in parallel position each other Besides in whatever operation mode it is essential to avoid too much open angles as regards horizontal position thus avoiding to choke the supplied airflow through the vents In Cooling mode Dry mode a too m...

Page 96: ...outlet vents has the objective to assure the highest degree of comfort to people inside the room Usually this objective is compatible with the distribution of air supplied through the vents as much uniformily as possible inside the room PLAN VIEW Vertical louvers rightside leftside Air inlet SIDE VIEW In whatever operation mode it is essential to adjust side by side the vertical louvers on right s...

Page 97: ...ration will be started in AUTO Automatic mode and the air conditioner will operate in the most suitable mode according to temperature conditions inside the room with temperature set to 24 C Test of air conditioner in Cooling mode COOL With system OFF press twice the AUTO COOL button In this way operation in Test mode will be started The system will start in forced Cooling mode COOL at LOW fan spee...

Page 98: ... room with temperature set to 24 C Test of air conditioner in Cooling mode COOL With system OFF press twice the AUTO COOL button In this way operation in Test mode will be started The system will start in forced Cooling mode COOL at LOW fan speed For 30 minutes room temperature will not be detected but protection functions will keep active Then operation will go on in AUTO Automatic mode with temp...

Page 99: ...set to 24 C Test of air conditioner in Cooling mode COOL With system OFF press twice the AUTO COOL button In this way operation in Test mode will be started The system will start in forced Cooling mode COOL at LOW fan speed For 30 minutes room temperature will not be detected but protection functions will keep active Then operation will go on in AUTO Automatic mode with temperature set to 24 C Not...

Page 100: ...room with temperature set to 24 C Test of air conditioner in Cooling mode COOL With system OFF press twice the AUTO COOL button In this way operation in Test mode will be started The system will start in forced Cooling mode COOL at LOW fan speed For 30 minutes room temperature will not be detected but protection functions will keep active Then operation will go on in AUTO Automatic mode with tempe...

Page 101: ...e room with temperature set to 24 C Test of air conditioner in Cooling mode COOL With system OFF press twice the AUTO COOL button In this way operation in Test mode will be started The system will start in forced Cooling mode COOL at LOW fan speed For 30 minutes room temperature will not be detected but protection functions will keep active Then operation will go on in AUTO Automatic mode with tem...

Page 102: ...ating it will be able to restart automatically 3 minutes after power is restored without need of pressing ON OFF button on remote controller Operation settings will be those that were active when the system was stopped For all types of Indoor Units TIMER settings or SLEEP settings HKEU 206 X 266 X 356 X 536 X Units only will be cancelled and therefore they have to be set again Automatic swinging f...

Page 103: ... functions may intervene and consequently air conditioner will stop n Reduce exposure to sunlight During operation in Cooling mode shade by curtains the large windows reached by direct sunlight during the hottest hours of day In this way a higher comfort will be obtained and a sensible reduction of energy consumption n Estimate comfort real needs Never use TIMER function for a time higher than rea...

Page 104: ... case of heat overcharge protection functions may intervene and consequently air conditioner will stop n Reduce exposure to sunlight During operation in Cooling mode shade by curtains the large windows reached by direct sunlight during the hottest hours of day In this way a higher comfort will be obtained and a sensible reduction of energy consumption n Estimate comfort real needs Never use TIMER ...

Page 105: ...ys open This reduces air conditioner s performances and causes an increase in energy consumption Moreover in case of heat overcharge protection functions may intervene and consequently air conditioner will stop n Reduce exposure to sunlight During operation in Cooling mode shade by curtains the large windows reached by direct sunlight during the hottest hours of day In this way a higher comfort wi...

Page 106: ...ws always open This reduces air conditioner s performances and causes an increase in energy consumption Moreover in case of heat overcharge protection functions may intervene and consequently air conditioner will stop n Reduce exposure to sunlight During operation in Cooling mode shade by curtains the large windows reached by direct sunlight during the hottest hours of day In this way a higher com...

Page 107: ...p doors and windows always open This reduces air conditioner s performances and causes an increase in energy consumption Moreover in case of heat overcharge protection functions may intervene and consequently air conditioner will stop n Reduce exposure to sunlight During operation in Cooling mode shade by curtains the large windows reached by direct sunlight during the hottest hours of day In this...

Page 108: ...rty DC Inverter Section 2 INDOOR UNITS Table of Contents 2 INDOOR UNITS UIN 2 2 1 HKEU X MODELS HIGHWALL TYPE UIN 2 2 2 HTFU X MODELS 60 x 60 CASSETTE TYPE UIN 13 2 3 HFIU X MODELS CONSOLE TYPE UIN 24 2 4 HSFU X MODELS FLOOR CEILING TYPE UIN 35 2 5 HRBU X MODELS LOW DUCTED TYPE UIN 44 2 6 CLEANING MAINTENANCE OF INDOOR UNITS UIN 55 ...

Page 109: ...door heat exchanger Number of circuits Indoor air flow Hi Me Lo 570 480 350 Noise level Hi Me Lo at 1m 10 11 5 37 33 27 795 x 270 x 165 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R51I4 BGE Infrared Remote Controller Setting temperature range 1 Technical Specifications of HKEU X Multi Liberty Indoor U...

Page 110: ...H x D Indoor heat exchanger Number of circuits Indoor air flow Hi Me Lo 570 480 350 Noise level Hi Me Lo at 1m 10 11 5 37 33 27 795 x 270 x 165 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R51I4 BGE Infrared Remote Controller Setting temperature range A 2 90 kW Capacity W Power input Running current A ...

Page 111: ... x D Indoor heat exchanger Number of circuits Indoor air flow Hi Me Lo 700 520 420 Noise level Hi Me Lo at 1m 10 5 12 0 40 35 28 845 x 286 x 165 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R51I4 BGE Infrared Remote Controller Setting temperature range A 3 80 kW Capacity W Power input Running current A...

Page 112: ... x P Indoor heat exchanger Number of circuits Indoor air flow Hi Me Lo 800 700 600 Noise level Hi Me Lo at 1m 12 5 15 5 42 37 33 995 x 292 x 194 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R51I4 BGE Infrared Remote Controller Setting temperature range A 5 45 kW Capacity W Power input Running current A...

Page 113: ...2 Indoor Units Multi Liberty DC Inverter Unit mm Dimension Model HKEU 356 X HKEU 536 X Width W Height H Depth D 845 286 165 995 292 194 HKEU 206 X HKEU 266 X 795 270 165 795 270 165 2 Dimensions of HKEU X Multi Liberty Indoor Units H W D ...

Page 114: ...C Inverter More than 12 cm More than 12 cm More than 15 cm More than 2 3 m CAUTION Highwall type Indoor Unit must be installed by fixation plate at 2 3m higher from floor 3 Installation Service spaces of HKEU X Multi Liberty Indoor Units HKEU 206 266 356 536 X Models ...

Page 115: ...block of Outdoor Unit Power Supply 1 Phase 220 240V 50Hz Female for plug from Indoor Unit A Female for plug from Indoor Unit B Female for plug from Indoor Unit C INDOOR UNIT A 4 wires cable with plug lenght 6m INDOOR UNIT B 4 wires cable with plug lenght 6m INDOOR UNIT C 4 wires cable with plug lenght 6m CN1 CN3 CN6 CN7 CN8 CN2 CN17 CN9 CN14 CN11 JX1 CN4 CN15 CN12 CN13 RY1 3 4 CN5 4 Wiring Diagram...

Page 116: ...uctor with exterior sheath of Black colour Neutral N 3 Conductor with exterior sheath of Blue colour Signal line S 4 Contact not connected 1 2 4 200 10 Frontal view of Plug connector View A Yellow Green View A 50 10 20 10 6000 30 View A Y e l l o w G r e e n G r o u n d B ro w n 1 P h a s e L B lu e 3 S ig n a l lin e S B l a c k 2 N e u t r a l N TO INDOOR UNIT S TERMINAL BLOCK Unit mm N S CN8 CN...

Page 117: ...erter 40 35 28 42 37 33 5 Noise level of HKEU X Multi Liberty Indoor Units Noise level at 1m dB A Models Hi speed Lo speed Me speed HKEU 356 X HKEU 536 X 37 33 27 37 33 27 HKEU 206 X HKEU 266 X Indoor Unit Microphone 1m 1m Measurement conditions 1m in front of Indoor Unit ...

Page 118: ...ts Multi Liberty DC Inverter 32 27 20 34 29 25 Noise level at 2 5m dB A Models Hi speed Lo speed Me speed HKEU 356 X HKEU 536 X 29 25 19 29 25 19 HKEU 206 X HKEU 266 X Indoor Unit Microphone 2 5m 1m Measurement conditions 2 5m in front of Indoor Unit ...

Page 119: ...Multi Liberty Indoor Units Installation plate 1 Installation screws ST3 9 x 25 Screws ST2 9 x 10 C H for Remote Controller s wall bearing Alkaline battery AM4 User s Manual Installation Manual Infrared Remote Controller Wall bearing for Remote Controller Wall fixing of Remote Controller Wall fixing of Remote Controller s bearing For fixing Unit s components ...

Page 120: ... Lo at 1m 18 25 40 34 30 580 x 254 x 580 Indoor Unit Refrigeran circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Condensate drain pump raised up to 360mm from drain socket Operation control R11HG E Infrared Remote Controller Setting temperature range 1 Technical Specifications of HTFU X Multi Liberty Indoor Units A 2 90 kW Capacity W Power input R...

Page 121: ... level Hi Me Lo at 1m 18 25 40 34 30 580 x 254 x 580 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R11HG E Infrared Remote Controller Setting temperature range A 3 20 kW Capacity W Power input Running current A Litres h YDK45 6D AC Motor Welling rpm Dimensions W x H x D Net Gross weight 745 x 345 x 750 ...

Page 122: ...level Hi Me Lo at 1m 18 25 41 36 31 580 x 254 x 580 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R11HG E Infrared Remote Controller Setting temperature range A 3 80 kW Capacity W Power input Running current A Litres h YDK45 6D AC Motor Welling rpm Dimensions W x H x D Net Gross weight 745 x 345 x 750 P...

Page 123: ...se level Hi Me Lo at 1m 21 28 44 38 35 580 x 254 x 580 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R11HG E Infrared Remote Controller Setting temperature range A 5 90 kW Capacity W Power input Running current A Litres h YDK45 4F AC Motor Welling rpm Dimensions W x H x D Net Gross weight 745 x 345 x 75...

Page 124: ...nsions of HTFU X Multi Liberty Indoor Units 580 254 580 580 254 580 580 254 580 67 422 28 5 650 Panel 611 Distance between suspension brackets 600 Opening in suspended ceiling 580 Unit s body Refrigerant pipings connections drain hose A 600 Staff 285 Panel Unit s body Nut Suspended ceiling 650 Panel 401 Distance between suspension brackets 600 Opening in suspended ceiling 580 Unit s body ...

Page 125: ...C Inverter 2 Indoor Units Multi Liberty DC Inverter 3 Installation service spaces for HTFU X Multi Liberty Indoor Units Air inlet Air outlet Air outlet 2300 A 280 Floor 1000 1000 1000 1000 Unit mm HTFU 206 266 356 536 X Models ...

Page 126: ...356 536 X Multi Liberty Indoor Units Femzale for plug from Indoor Unit D INDOOR UNIT D 4 wires cable with plug lenght 6m CN3 CN11 CN13 CN2 CN9 CN4 FM Indoor Unit s PCB White C Red Black L N Display Board Transformer XT1 CN1 XP8 XS8 XP6 XS6 XS7 XP7 XS5 XP5 W h i t e B l a c k Yellow Green White SW1 SW2 CN6 CN10 CN14 S S CN7 Condensate drain pump M Function of microswitches on PCB SW2 Capacity 536 3...

Page 127: ...2 Conductor with exterior sheath of Black colour Neutral N 3 Conductor with exterior sheath of Blue colour Signal line S 4 Contact not connected 1 2 4 200 10 Frontal view of Plug Connector View A Yellow Green View A 50 10 20 10 6000 30 View A Y e l l o w G r e e n G r o u n d B ro w n 1 P h a s e L B lu e 3 S ig n a l lin e S B l a c k 2 N e u t r a l N TO INDOOR UNIT S TERMINAL BLOCK Unit mm N S ...

Page 128: ... Inverter 41 36 31 44 38 35 5 Noise level of HTFU X Multi Liberty Indoor Units Noise level at 1m dB A Models Hi speed Lo speed Me speed HTFU 356 X HTFU 536 X 40 34 30 40 34 30 HTFU 206 X HTFU 266 X Indoor Unit Microphone 1 0m Measurement conditions 1m below Indoor Unit ...

Page 129: ... Units Multi Liberty DC Inverter 33 28 23 36 30 27 Noise level at 2 5m dB A Models Hi speed Lo speed Me speed HTFU 356 X HTFU 536 X 32 26 22 32 26 22 HTFU 206 X HTFU 266 X Indoor Unit Microphone 2 5m Measurement conditions 2 5m below Indoor Unit ...

Page 130: ...H for Remote Controller s wall bearing Alkaline battery User s Manual Installation Manual Infrared Remote Controller Wall bearing for Remote Controller Wall installation of Remote Controller Wall installation of Remote Controller s bearing To fix the reference pattern 4 Screw anchor Ø12 hook type For suspending the Indoor Unit 4 Suspension bracket bored and threaded at one end For suspending the I...

Page 131: ...1m 13 19 37 32 27 700 x 600 x 210 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R51D E Infrared Remote Controller Optional controls DTW IHXR Wired Controller DTWS IHXR Wired Controller Setting temperature range Centralized control devices DTC IHXR DTCWT IHXR they both require NIM GRH Digital interface m...

Page 132: ...vel Hi Me Lo at 1m 15 20 37 32 27 700 x 600 x 210 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operaiton control R51D E Infrared Remote Controller Optional controls DTW IHXR Wired Controller DTWS IHXR Wired Controller Setting temperature range Centralized control devices DTC IHXR DTCWT IHXR they both require NIM GRH Dig...

Page 133: ...vel Hi Me Lo at 1m 15 20 39 34 29 700 x 600 x 210 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R51D E Infrared Remote Controller Optional controls DTW IHXR Wired Controller DTWS IHXR Wired Controller Setting temperature range Centralized control devices DTC IHXR DTCWT IHXR they both require NIM GRH Dig...

Page 134: ...IU 27 DUAL TRIPLE POKER DC Inverter 2 Indoor Units Multi Liberty DC Inverter 2 Dimensions of HFIU X Multi Liberty Indoor Units HFIU 266 356 536 X Models Unit mm 700 600 210 195 Fixing elements ...

Page 135: ...or Unit is installed in vertical position with frontal and side air inlet and upper and lower air outlet factory default setting HFIU X Multi Liberty Indoor Units have been designed for being installed on wall base or at a medium height along the wall itself Unit mm 100 or more 100 or more 100 or more 1000 or more Obstacle Wall or obstacle Wall or obstacle Wall or obstacle ...

Page 136: ...on PCB M1 Upper motor of air outlet flaps M2 Lower motor of air outlet flaps FAN Indoor fan motor RT1 Room temperature sensor RT2 Heat exchanger s temperature sensor XP1 XP5 Connectors XS1 XS5 Connectors XT1 4 contacts terminal block JP1 Jumper Meaning of symbols Connection of Network Module Symbol Components Network Module To Centralized Remote Control Note If NIM GRH Module Network Module must b...

Page 137: ...nected L N Ground Ground Outdoor Unit s terminal block Power Supply 1 Phase 220 240V 50Hz Female for plug from Indoor Unit A Female for plug from Indoor Unit B Female for plug from Indoor Unit C INDOOR UNIT A 4 wires cable with plug lenght 6m INDOOR UNIT B 4 wires cable with plug lenght 6m INDOOR UNIT C 4 wires cable with plug lenght 6m Female for plug from Indoor Unit D INDOOR UNIT D 4 wires cabl...

Page 138: ...se L 2 Conductor with exterior sheath of Black colour Neutral N 3 Conductor with exterior sheath of Blue colour Signal line S 4 Contact not connected 1 2 4 200 10 Frontal view of Plug connector View A Yellow Green View A 50 10 20 10 6000 30 View A Y e l l o w G r e e n G r o u n d B ro w n 1 P h a s e L B lu e 3 S ig n a l lin e S B l a c k 2 N e u t r a l N TO OUTDOOR UNIT S TERMINAL BLOCK Unit m...

Page 139: ...Liberty DC Inverter Models Noise level at 1m dB A Hi speed Lo speed Me speed 5 Noise level of HFIU X Multi Liberty Indoor Units Measurement conditions 1m in front of Indoor Unit 1 5m 1 0m Microphone HFIU 266 X 31 26 22 HFIU 356 X 32 27 23 HFIU 536 X 33 31 28 ...

Page 140: ...er 2 Indoor Units Multi Liberty DC Inverter Models Noise level at 2 5m dB A Hi speed Lo speed Me speed Measurement conditions 2 5m in front of Indoor Unit 1 5m 2 5m Microphone HFIU 266 X 29 24 19 HFIU 356 X 29 24 19 HFIU 536 X 31 26 21 ...

Page 141: ... 6 Accessories provided with HFIU X Multi Liberty Indoor Units User s Manual Installation Manual Control of Unit Infrared Remote Controller Remote Controller s wall bearing Wall fixing Screws for Remote Controller s wall bearing ST2 9 x 10 C H Alkaline batteries AM4 For Unit s fixing 2 Indoor Unit s installation brackets ...

Page 142: ...hanger Number of circuits Indoor air flow Hi Me Lo 650 550 440 Noise level Hi Me Lo at 1m 24 30 41 36 31 990 x 660 x 203 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R05 BGE Infrared Remote Controller Setting temperature range 1 Technical Specifications of HSFU X Multi Liberty Indoor Units A 3 96 kW Ca...

Page 143: ...ndoor heat exchanger Number of circuits Indoor air flow Hi Me Lo 650 550 440 Noise level Hi Me Lo at 1m 24 30 43 38 33 990 x 660 x 203 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R05 BGE Infrared Remote Controller Setting temperature range A 5 90 kW Capacity W Power input Running current A Litres h YS...

Page 144: ...2 Dimensions of HSFU X Multi Liberty Indoor Units Unit mm A D F G H B E Holes for refrigerant lines drain hose C Fixing clamp Hole for drain hose Hole for refrigerant lines 20mm Models HSFU 356 X 990 660 206 505 506 907 200 203 HSFU 536 X Ref References to dimensioned drawings Hole for refrigerant lines and drain hose Unit mm ...

Page 145: ...IU 38 DUAL TRIPLE POKER DC Inverter 2 Indoor Units Multi Liberty DC Inverter 3 Service spaces for HSFU X Multi Liberty Indoor Units Unit mm HSFU 356 536 X Models 35mm 35mm 35mm 1000mm ...

Page 146: ... cable with plug lenght 6m 4 Wiring Diagrams of HSFU 356 536 X Multi Liberty Indoor Units Female for plug from Indoor Unit D INDOOR UNIT D 4 wires cable with plug lenght 6m CN3 CN11 CN13 CN2 CN9 CN4 FM Indoor Unit s PCB White C Red Black L N Display Board Transformer XT1 CN1 XP8 XS8 XP9 XS9 XS7 XP7 XS6 XP6 W h i t e B l a c k Yellow Green White SW1 CN6 CN10 CN14 S S CN12 M ON 1 2 ON 1 2 Compensati...

Page 147: ... 2 Conductor with exterior sheath of Black colour Neutral N 3 Conductor with exterior sheath of Blue colour Signal line S 4 Contact not connected 1 2 4 200 10 Frontal view of Plug Connector View A Yellow Green View A 50 10 20 10 6000 30 View A Y e l l o w G r e e n G r o u n d B ro w n 1 P h a s e L B lu e 3 S ig n a l lin e S B l a c k 2 N e u t r a l N TO INDOOR UNIT S TERMINAL BLOCK Unit mm N S...

Page 148: ...Measurement conditions Floor type installation 1 m in front of Indoor Unit Indoor Unit Air outlet Measurement conditions Ceiling type installation 1m below Indoor Unit Indoor Unit Air outlet 1 0m 1 0m Microphone 1 0m 1 5m Microphone 31 36 41 33 38 43 Models Noise level at 1m dB A Hi speed Lo speed HSFU 356 X HSFU 536 X Me speed ...

Page 149: ... type installation 2 5m in front of Indoor Unit Indoor Unit Air outlet Measurement conditions Ceiling type installation 2 5m below Indoor Unit Indoor Unit Air outlet 2 5m 1 0m Microphone 2 5m 1 5m Microphone 23 28 33 25 30 35 Models Noise level at 2 5m dB A Hi speed Lo speed HSFU 356 X HSFU 536 X Me speed ...

Page 150: ...with HSFU X Multi liberty Indoor Units User s Manual Installation Manual Floor type installation bracket For wall fixing 2 Ceiling type installation bracket For ceiling fixing Control of Unit Infrared Remote Controller Remote Controller s wall bearing For wall fixing Screws for Remote Controller s wall bearing ST2 9 x 10 C H Alkaline battery AM4 ...

Page 151: ...rcuits Indoor air flow Hi Me Lo 680 620 540 Noise level Hi Me Lo at 1m 15 19 41 36 31 Pa Available static pressure 10 874 x 203 x 375 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R11HG E Infrared Remote Controller Setting temperature range 1 Technical Specifications of HRBU X Multi Liberty Indoor Units...

Page 152: ...ger Number of circuits Indoor air flow Hi Me Lo 680 620 540 Noise level Hi Me Lo at 1m 15 19 41 36 31 Pa Available static pressure 10 874 x 203 x 375 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R11HG E Infrared Remote Controller Setting temperature range A 3 20 kW Capacity W Power input Running curren...

Page 153: ...er Number of circuits Indoor air flow Hi Me Lo 680 620 540 Noise level Hi Me Lo at 1m 15 19 42 36 31 Pa Available static pressure 10 874 x 203 x 375 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operation control R11HG E Infrared Remote Controller Setting temperature range A 3 80 kW Capacity W Power input Running current...

Page 154: ...er Number of circuits Indoor air flow Hi Me Lo 870 800 720 Noise level Hi Me Lo at 1m 18 23 45 39 35 Pa Available static pressure 10 1224 x 206 x 365 Indoor Unit Refrigerant circuit Running pressure Refrigerant pipings Power lines Signal lines Wiring Diameter of drain pipe Operatio control R11HG E Infrared Remote Controller Setting temperature range A 5 90 kW Capacity W Power input Running current...

Page 155: ...frigerant connection Gas side Ø9 52 3 8 Refrigerant connection Liquid side Ø6 35 1 4 Drain hose Ø25 268 148 100 Fresh air inlet duct hole Ø100 250mm 500mm 500mm 203 203 874 674 829 874 375 375 25 102 87 220 175 268 148 100 206 206 1179 979 1179 1224 365 365 Fresh air inlet duct hole Ø100 250mm 500mm 500mm Refrigerant connection Gas side Ø12 7 1 2 Refrigerant connection Liquid side Ø6 35 1 4 Drain ...

Page 156: ...C Inverter 3 Service spaces for HRBU X Multi Liberty Indoor Units Unit mm HRBU 206 266 356 536 X Models Refrigerant pipings connections Air outlet Air inlet plenum VIEW A 500mm Duct 100mm 200mm 250mm 3m 1000mm Air inlet grille 500mm VIEW A Air inlet plenum Air outlet ...

Page 157: ... Wiring Diagrams of HRBU 206 266 356 536 X Multi Liberty Indoor Units Female for plug from Indoor Unit D INDOOR UNIT D 4 wires cable with plug lenght 6m CN3 CN11 CN13 CN2 CN9 CN4 FM Indoor Unit s PCB White C Red Black L N Display Board Transformer XT1 CN1 XP8 XS8 XP6 XS6 XS7 XP7 W h i t e B l a c k Yelllow Green White SW1 SW2 CN6 CN10 CN14 S S CN7 Function of microswitches on PCB SW2 Capacity 536 ...

Page 158: ...2 Conductor with exterior sheath of Black colour Neutral N 3 Conductor with exterior sheath of Blue colour Signal line S 4 Contact not connected 1 2 4 200 10 Frontal view of Plug connector View A Yellow Green View A 50 10 20 10 6000 30 View A Y e l l o w G r e e n G r o u n d B ro w n 1 P h a s e L B lu e 3 S ig n a l lin e S B l a c k 2 N e u t r a l N TO INDOOR UNIT S TERMINAL BLOCK Unit mm N S ...

Page 159: ...31 45 39 35 5 Noise level of HRBU X Multi Liberty Indoor Units Noise level at 1m dB A Models Hi speed Lo speed Me speed HRBU 206 X HRBU 266 X 42 36 31 HRBU 356 X HRBU 536 X Indoor Unit Measurement conditions 1m below Indoor Unit s air inlet grille Air outlet duct Air inlet grille Microphone 1m ...

Page 160: ...verter 33 28 23 33 28 23 37 31 27 Noise level at 2 5m dB A Models Hi speed Lo speed Me speed HRBU 206 X HRBU 266 X 34 28 23 HRBU 356 X HRBU 536 X Indoor Unit Measurement conditions 2 5m below Indoor Unit s air inlet grille Air outlet duct Air inlet grille Microphone 2 5m ...

Page 161: ... Manual To be delivered to Customer 1 Installation Manual To be delivered to Customer 1 1 Infrared Remote Controller Alkaline battery AM4 To operate the air conditioner For supplying IR Remote Controller 1 2 Washer For fixing Units to threaded bars 8 Nylon clamp 10 To fix insulating sleeves Display Board IR Signal Receiver Signal reception OPERATION TIMER DEF FAN ALARM MANUAL ...

Page 162: ...frontal panel Fig 3 Max opening angle is of about 15 Hold the lower edge of frontal panel and lift up the panel as it is shown in Fig 4 2 Open the panel till max opening angle as it is shown in Fig 5 Never force the panel opening besides max limit angle to avoid breaking of panel s hinges 3 Periodical cleaning every 2 weeks at least of net type filters and of the rear air inlet grille is recommend...

Page 163: ...ir Filters n Cleaning of Indoor Unit s rear air inlet grille HKEU X Multi Liberty Models n If you foresee not to use the system for a long time 1 1 2 2 3 4 Fig 9 Fig 10 Push at the same time the right and left sides of grille see Fig 9 to release the rear air inlet grille s latches Lift up the rear air inlet grille in the direction indicated by the arrow Fig 10 then detach it from the Indoor Unit ...

Page 164: ...or Unit by protecting it properly by a nylon covering n Before starting the system after it has not been operated for a long time 1 2 3 4 5 6 7 Please check also visually the general state of wiring and refrigerant connections Remove the eventual protective covering on Indoor Unit Check if all air filters are installed on Indoor Unit air filters must be well clean and not damaged Check if frontal ...

Page 165: ...ightly upwards for releasing the grille s fixing latches from corresponding slots in decorative panel 3 Detach air inlet grille provided with air filter from Indoor Unit s body 4 Periodical cleaning every 2 weeks at least of net type filter and of air inlet grille is recommended in order to assure the perfect efficiency of Indoor Unit and to avoid a decrease in its performances To carry on the cle...

Page 166: ...ng time 3 1 2 4 5 Operate the Indoor Unit in Fan mode for at least 2 hours in order to remove residual humidity inside it Disconnect the system by switching over main switch to OFF Remove batteries from Remote Controller in order to avoid that eventual acid leakage might damage the contacts inside the battery case Clean the Indoor Unit and the air filter as it has been previously indicated Take ca...

Page 167: ...eplace batteries in infrared Remote Controller and check if contacts are not damaged eventual oxidation etc inside the battery case Check there is no object and or foreign matters that may obstruct air inlet and or air outlet of Indoor Unit Connect the system to power supply by switching over main switch to ON at least 6 hours before starting the system itself ...

Page 168: ... 3 Detach the net type filter as it shown in Fig 4 then take it out by sliding it upwards 2 Detach the 2 anti formaldehyde filters that are installed on net type filter Fig 5 Anti formaldehyde filters must be washed in water every 6 months and must be replaced every 3 years as they are not regenerable These filters are available as spare parts 3 Periodical cleaning every 2 weeks at least of net ty...

Page 169: ...ll filters included anti formaldehyde on Indoor Unit by following the reverse pocedure of that described for disassembly In the end close the Indoor Unit s frontal panel and replace slides to locking position n Cleaning of Indoor Unit s air inlet grille HFIU X Multi Liberty Models 4 5 6 Fig 9 Exterior side of filter 1 2 3 Fig 8 Open upper side of Indoor Unit s frontal panel by moving the locking s...

Page 170: ...or Unit by protecting it properly by a nylon covering n Before starting the system after it has not been operated for a long time 1 2 3 4 5 6 7 Please check also visually the general state of wiring and refrigerant connections Remove the eventual protective covering on Indoor Unit Check if all air filters are installed on Indoor Unit air filters must be well clean and not damaged Check if frontal ...

Page 171: ... out polypropylene net type filters which are installed in the grille s rear side There are 2 plastic transparent stop strips 1 on each side of grille see Fig 4 2 3 Periodic cleaning every 2 weeks at least of net type filters and of air inlet grille is recommended in order to assure the perfect efficiency of Indoor Unit and to avoid a decrease in its performances To carry on the cleaning procedure...

Page 172: ...6 or immerse them in just tepid water and neutral soap In both cases carry out the cleaning gently in order to avoid to damage the filtering net Dry the net type filters in a shaded place and far from heat sources Re install both air filters on Indoor Unit Close Indoor Unit s air inlet grille Fig 7 n Cleaning of Indoor Unit s air inlet frontal grille HSFU X Multi Liberty Models 4 5 6 Fig 9 1 2 3 F...

Page 173: ...ed Remote Controller in order to avoid that eventual acid leakage might damage the contacts inside the battery case Clean the Indoor Unit the frontal panel and air filters as it has been previously indicated Take care to prevent dust and or foreign metters from entering the Indoor Unit by protecting it properly by a nylon covering Please check also visually the general state of wiring and refriger...

Page 174: ...lenum by screwing safety fixing screws and pulling the panel toward you Fig 3 With air inlet plenum the polypropylene net type filter is immediately visible after removing air inlet panel Wthout air inlet plenum net type filter provided with Indoor Unit is directly installed on Unit s main body Fig 4 2 Periodical cleaning every 2 weeks at least of air inlet panel and of rear net type filter is rec...

Page 175: ...ng net Dry the net type filter in a shaded place and far from heat sources Re install the air filter properly by fixing devices Re install Indoor Unit s air inlet panel by the reverse procedure of that carried out for removal Fig 7 n Cleaning of Indoor Unit s air outlet grille HRBU X Multi Liberty Models Fig 9 1 2 3 4 Fig 8 Remove air outlet grille from its place at the end of air outlet duct Fig ...

Page 176: ...rly by a nylon covering Please check also visually the general state of wiring and refrigerant connections Remove the eventual protective covering on air inlet panel and air outlet grille Check if air filter is installed on Indoor Unit air filter must be well clean and not damaged Check if frontal panel is properly installed and that air does not pass through the panel the false ceiling and the ev...

Page 177: ...tdoor Units Troubleshooting Multi Liberty DC Inverter Table of Contents 3 1 SPECIFICATIONS OF MULTI LIBERTY OUTDOOR UNITS OUT 2 3 2 TROUBLESHOOTING OUT 37 3 2 1 ERROR CODES DISPLAYED ON INDOOR UNITS OUT 38 3 2 2 ERROR PROTECTION CODES DISPLAYED ON OUTDOOR UNITS OUT 78 3 3 ELECTRICAL SPECIFICATIONS OF SOME COMPONENTS OUT 92 3 4 R T FEATURES OF TEMPERATURE SENSORS OUT 94 ...

Page 178: ...ssure Refrigerant pipings Liquid side Gas side 2 x Ø6 35 1 4 2 x Ø9 52 3 8 Max splitting distance I O Max splitting level diff U I U E MPa mm inches Power lines Signal lines Wiring cables Core nb x Size Outdoor temperature ranges HCKU 406 X2 220 240 1 50 4 05 1 54 5 80 5 7 1 250 0 53 1 71 4 57 1 59 5 90 1700 8 0 DA108X1C 20FZ3 VG74 480ml Temperature protection INT01L 4619 or CS 74 887 x 645 x 355 ...

Page 179: ...side 2 x Ø6 35 1 4 2 x Ø9 52 3 8 Max splitting distance I O Max splitting level diff U I U E MPa mm inches Power lines Signal lines Wiring cables Core nb x Size Outdoor temperature ranges HCKU 536 X2 220 240 1 50 5 30 1 40 6 66 7 5 1 570 0 41 2 16 6 10 1 30 8 13 2150 10 5 DA13051C 20FZ VG74 500ml Temperature protection Indoor 965 x 755 x 395 845 x 695 x 335 4 785 x 651 x 26 74 2500 4 2 2 5 53 5 57...

Page 180: ...35 1 4 3 x Ø9 52 3 8 Max splitting distance I O Max splitting level diff U I U E MPa mm inches Power lines Signal lines Wiring cables Core nb x Size Outdoor temperature ranges HCKU 606 X3 220 240 1 50 6 00 1 56 8 93 8 6 1 798 0 53 3 03 6 70 1 67 9 32 3335 14 0 DA13051C 20FZ VG74 500ml Temperature protection Indoor INT11L 5270 L115 5 965 x 755 x 395 845 x 695 x 335 2 785 x 651 x 26 74 2500 4 2 2 5 ...

Page 181: ... 3 x Ø6 35 1 4 3 x Ø9 52 3 8 Max splitting distance I O Max splitting level diff U I U E MPa mm inches Power lines Signal lines Wiring cables Core nb x Size Outdoor temperature ranges HCKU 806 X3 220 240 1 50 8 00 1 38 9 86 11 0 2 350 0 53 3 03 8 70 0 48 3 09 3100 16 0 DA15051C 20FZ VG74 500ml Temperature protection Indoor 965 x 755 x 395 845 x 695 x 335 4 779 x 651 x 26 74 2500 4 2 2 5 57 60 5 55...

Page 182: ...4 x Ø6 35 1 4 4 x Ø9 52 3 8 Max splitting distance I O Max splitting level diff U I U E MPa mm inches Power lines Signal lines Wiring cables Core nb x Size Outdoor temperature ranges HCKU 706 X4 220 240 1 50 7 00 1 38 10 11 9 6 1 986 0 50 3 42 7 60 1 72 11 86 3800 15 0 DA15051C 20FZ VG74 500ml Temperature protection Indoor 965 x 755 x 395 845 x 695 x 335 4 779 x 651 x 26 74 2500 4 2 2 5 56 60 55 R...

Page 183: ...4 x Ø6 35 1 4 4 x Ø9 52 3 8 Max splitting distance I O Max splitting level diff U I U E MPa mm inches Power lines Signal lines Wiring cables Core nb x Size Outdoor temperature ranges HCKU 816 X4 220 240 1 50 8 10 1 38 11 09 11 2 2 483 0 58 3 75 9 00 1 59 12 30 4800 21 0 TNB220FLHMC L FV50S 870ml Temperature protection Indoor 1043 x 915 x 395 895 x 860 x 330 4 836 x 814 x 38 3500 4 2 2 5 78 82 57 R...

Page 184: ...x Ø6 35 1 4 4 x Ø9 52 3 8 Max splitting distance I O Max splitting level diff U I U E MPa mm inches Power lines Signal lines Wiring cables Core nb x Size Outdoor temperature ranges HCKU 1066 X4 220 240 1 50 10 60 1 27 14 59 15 5 3 350 0 55 4 72 11 70 1 59 16 03 4900 22 5 TNB306FPGM FV50S 870ml Temperature protection Indoor 1120 x 1100 x 435 990 x 966 x 396 4 954 x 902 x 38 5800 4 2 2 5 86 90 61 R4...

Page 185: ...T 9 DUAL TRIPLE POKER DC Inverter 3 Outdoor Unitis Troubleshooting Multi Liberty DC Inverter Unit mm HCKU 406 Outdoor Unit X2 590 760 530 3 2 Dimensions of Multi Liberty DC Inverter Outdoor Units 285 290 ...

Page 186: ...OUT 10 DUAL TRIPLE POKER DC Inverter 3 Outdoor Unitis Troubleshooting Multi Liberty DC Inverter Unit mm HCKU 536 X2 HCKU 606 X3 HCKU 806 X3 HCKU 706 Outdoor Units X4 845 695 335 560 340 ...

Page 187: ...OUT 11 DUAL TRIPLE POKER DC Inverter 3 Outdoor Unitis Troubleshooting Multi Liberty DC Inverter Unit mm HCKU 816 Outdoor Unit X4 590 862 313 895 975 302 333 355 ...

Page 188: ...OUT 12 DUAL TRIPLE POKER DC Inverter 3 Outdoor Unitis Troubleshooting Multi Liberty DC Inverter Unit mm HCKU 1066 Outdoor Unit X4 966 354 1075 990 624 340 366 396 ...

Page 189: ...se has been arranged before Outdoor Unit s delivery take care to observe the recommended distances see Outdoor Units drawings in the previous pages between the holes on Outdoor Unit s bearing feet where anchor bolts must be fixed 3 Fit in anchor bolts in concrete base according to sufficient depth to assure a steady fixing of Unit 4 Outdoor Unit must be installed in perfectly horizontally position...

Page 190: ...X Ø9 52 3 8 356 X 536 X Ø12 7 1 2 Liquid side Ø6 35 1 4 Gas side Ø9 52 3 8 Gas side Ø9 52 3 8 OUTDOOR UNIT INDOOR UNIT 1I U 2I U Note For refrigerant connection of 356 X and 536 X Indoor Units it is needed a diameter adapter Ø9 52 3 8 Ø12 7 1 2 on Outdoor Unit s Gas side With each Outdoor Unit 1 adapter HCKU 406 X2 or 2 adapters HCKU 536 X2 are provided Each adapter must be connected Flare connect...

Page 191: ... Ø6 35 1 4 Liquid side Ø6 35 1 4 Liquido side Ø6 35 1 4 Gas side Ø9 52 3 8 Gas side Ø9 52 3 8 Gas side Ø9 52 3 8 OUTDOOR UNIT INDOOR UNIT 1I U 2I U 3I U Liquid side Ø6 35 1 4 Gas side 206 X 266 X Ø9 52 3 8 356 X 536 X Ø12 7 1 2 Note For refrigerant connection of 356 X and 536 X Indoor Units it is needed a diameter adapter Ø9 52 3 8 Ø12 7 1 2 on Outdoor Unit s Gas side With each Outdoor Unit HCKU 6...

Page 192: ...9 52 3 8 Gas side Ø9 52 3 8 OUTDOOR UNIT INDOOR UNIT 1I U 2I U 3I U 4 I U Exhaust temperature sensor 4 way valve Compressor Receiver Axial flow fan Condenser Liquid side Ø6 35 1 4 Gas side 206 X 266 X Ø9 52 3 8 356 X 536 X Ø12 7 1 2 Note For refrigerant connection of 356 X and 536 X Indoor Units it is needed a diameter adapter Ø9 52 3 8 Ø12 7 1 2 on Outdoor Unit s Gas side With each Outdoor Unit 3...

Page 193: ...N31 CN14 Yellow Green CN3 CN18 RY1 CN32 CN12 CN11 Blue Yellow Yellow CN1 CN9 CN6 CN7 CN10 Compressor heater 4 3 R6025 5 IPM PCB 5 Red Red Compressor Blue Blue Red Red Orange Orange Red Red Black U V W CN1 L N Discharge temp sensor Valve A 2 digit LED Display Valve B EEV valve Unit A EEV valve Unit B Temperature sensor Gas side A Temperature sensor Gas side B Heat exchanger temp sensor T3 Room temp...

Page 194: ...8 Red RY1 CN32 CN12 CN11 Blue Yellow Yellow CN1 CN9 CN6 CN7 CN10 Compressor heater 4 3 R1325 5 IPM PCB 5 Blue Red Red R1502 White White Compressor Blue Black U R V S W C CN1 L N Valve A Valve B EEV valve Unit A EEV valve Unit B Temperature sensor Gas side A Temperature sensor Gas side B Heat exchanger temp sensor T3 Room temp sensor T4 Yellow Green Yellow Green Yellow Green Yellow Green Yellow Gre...

Page 195: ...11 Blue Yellow Yellow CN1 CN9 CN6 CN7 CN10 Compressor heater 4 3 R1325 5 IPM PCB 5 Blue Red Red R1502 White White Compressor Blue Black U R V S W C CN1 L N Valve A Valve B EEV valve Unit A EEV valve Unit B CN25 Valve C EEV valve Unit C Temperature sensor Gas side A Temperature sensor Gas side B Heat exchanger temp sensor T3 Room temp sensor T4 Temperature sensor Gas side C Yellow Green Yellow Gree...

Page 196: ...lue Yellow Yellow CN1 CN9 CN6 CN7 CN10 Compressor heater 4 3 R1325 5 IPM PCB 5 Blue Red Red R2503 White White Compressor Blue Black U R V S W C CN1 L N Valve A Valve B EEV valve Unit A EEV valve Unit B CN25 Valve C EEV valve Unit C Temperature sensor Gas side A Temperature sensor Gas side B Heat exchanger temp sensor T3 Room temp sensor T4 Temperature sensor Gas side C Yellow Green Yellow Green Ye...

Page 197: ... 5 5 IPM Module Yellow Green IPM PCB Compressor U R V S W C CN26 CN28 Valve A Valve B Valve C Valve D EEV valve Unit A EEV valve Unit B CN25 CN23 EEV valve Unit C EEV valve Unit D To Indoor Unit B To Indoor Unit C To Indoor Unit D To Indoor Unit A Yellow Green Yellow Green Yellow Green Filter Yellow Green 4 way valve coil Fan motor s condenser Compressor heater Yellow Green Fan motor Power Supply ...

Page 198: ...7 CN29 CN31 CN3 CN18 Red CN32 CN12 CN11 Black Yellow Yellow CN1 CN9 CN6 Red Yellow CN7 CN10 5 R2503 5 Yellow Green IMP PCB Compressor U R V S W C Condenser AC Rectifier 2 Rectifier 1 CN26 CN28 Valve A Valve B Valve C Valve D EEV valve Unit A EEV valve Unit B CN25 CN23 EEV valve Unit C EEV valve Unit D To Indoor Unit B To Indoor Unit C To Indoor Unit D To Indoor Unit A Yellow Green Yellow Green Yel...

Page 199: ...N34 CN6 CN8 Red Yellow Red CN7 CN10 5 5 IPM Module Yellow Green IPM PCB Compressor U R V S W C CN26 CN28 Valve A Valve B Valve C Valve D EEV valve Unit A EEV valve Unit B CN25 CN23 EEV valve Unit C EEV valve Unit D To Indoor Unit B To Indoor Unit C To Indoor Unit D To Indoor Unit A Filter Yellow Green Yellow Green Yellow Green 4 way valve coil Fan motor s condenser Compressor heater Yellow Green F...

Page 200: ...706 Outdoor Unit X4 4 Indoor Units can be connected L N Ground Ground Power supply terminal block of Outdoor Unit Power Supply 1 Phase 220 240V 50Hz Female for plug from Indoor Unit A Female for plug from Indoor Unit B Female for plug from Indoor Unit C INDOOR UNIT A 4 wire cable with plug lenght 6m INDOOR UNIT B 4 wire cable with plug lenght 6m INDOOR UNIT C 4 wire cable with plug lenght 6m Femal...

Page 201: ...colour Phase L 2 Conductor with exterior sheath of Black colour Neutral N 3 Conductor with exterior sheath of Blue colour Signal line S 4 Contact not connected 1 2 4 200 10 Frontal view of Plug Connector View A Yellow Green View A 50 10 20 10 6000 30 View A Y e l l o w G r e e n G r o u n d B ro w n 1 P h a s e L B lu e 3 S ig n a l lin e S B l a c k 2 N e u t r a l N TO INDOOR UNIT S TERMINAL BLO...

Page 202: ...nverter 1 0 m Microphone Models Noise level at 1m dB A 53 54 55 HCKU 406 X2 HCKU 536 X2 HCKU 606 X3 55 55 57 HCKU 806 X3 HCKU 706 X4 HCKU 816 X4 61 HCKU 1066 X4 Outdoor Unit Measurement conditions 1m in front of Outdoor Unit 1 0 m 3 6 Noise level of Multi Liberty DC Inverter Outdoor Units ...

Page 203: ...eshooting Multi Liberty DC Inverter 2 5 m Microphone Models Noise level at 2 5m dB A 45 46 47 HCKU 406 X2 HCKU 536 X2 HCKU 606 X3 47 47 49 HCKU 806 X3 HCKU 706 X4 HCKU 816 X4 53 HCKU 1066 X4 Outdoor Unit Measurement conditions 2 5m in front of Outdoor Unit 1 0 m ...

Page 204: ...ulti Liberty DC Inverter In Cooling mode Indoor temperature C W B Outdoor temperature C D B 3 7 Operating conditions of Multi Liberty DC Inverter systems In Heating mode Outdoor temperature C W B 50 30 0 17 24 30 24 6 15 Standard Standard Indoor temperature C D B 17 20 30 ...

Page 205: ...30 Capacity kW 9 98 8 70 7 44 6 30 5 51 4 55 3 94 2 89 Power Input kW 2 73 2 30 2 25 2 08 1 96 1 86 1 77 1 69 Capacity kW 8 92 7 60 6 25 5 18 4 57 3 89 3 35 2 29 Power Input kW 2 36 1 96 1 98 1 81 1 73 1 69 1 58 1 48 Capacity kW 10 02 9 00 7 47 6 42 5 36 4 48 3 87 2 81 Power Input kW 2 68 2 43 2 24 2 10 2 00 1 93 1 85 1 76 Capacity kW 12 88 11 70 9 66 7 99 6 88 5 99 5 00 3 66 Power Input kW 3 82 3...

Page 206: ...consumption of Multi Liberty DC Inverter Outdoor Units Power input kW Capacity kW Outdoor air temperature C D B Test conditions Indoor temperature 20 C B S Number and capacity of connected Indoor Units 2 x 206X Setting of indoor fan speed High Splitting distances 5m 5m Operation in Heating mode Model HCKU 406 Outdoor Unit X2 ...

Page 207: ... DC Inverter Power input kW Capacity kW Outdoor air temperature C D B Test conditions Indoor temperature 20 C D B Number and capacity of connected Indoor Units 2 x 266X Setting of indoor fan speed High Splitting distances 5m 5m Operation in Heating mode Model HCKU 536 Outdoor Unit X2 ...

Page 208: ...DC Inverter Power input kW Capacity kW Outdoor air temperature C D B Test conditions Indoor temperature 20 C D B Number and capacity of connected Indoor Units 3 x 206X Setting of indoor fan speed High Splitting distances 5m 5m 5m Operation in Heating mode Model HCKU 606 Outdoor Unit X3 ...

Page 209: ...DC Inverter Power input kW Capacity kW Outdoor air temperature C D B Test conditions Indoor temperature 20 C D B Number and capacity of connected Indoor Units 3 x 266X Setting of indoor fan speed High Splitting distances 5m 5m 5m Operation in Heating mode Model HCKU 806 Outdoor Unit X3 ...

Page 210: ... Inverter Power input kW Capacity kW Outdoor air temperature C D B Test conditions Indoor temperature 20 C D B Number and capacity of connected Indoor Units 4 x 206X Setting of indoor fan speed High Splitting distances 5m 5m 5m 5m Operation in Heating mode Model HCKU 706 Outdoor Unit X4 ...

Page 211: ... Inverter Power input kW Capacity kW Outdoor air temperature C D B Test conditions Indoor temperature 20 C D B Number and capacity of connected Indoor Units 4 x 206X Setting of indoor fan speed High Splitting distances 5m 5m 5m 5m Operation in Heating mode Model HCKU 816 Outdoor Unit X4 ...

Page 212: ... Inverter Power input kW Capacity kW Outdoor air temperature C D B Test conditions Indoor temperature 20 C D B Number and capacity of connected Indoor Units 4 x 266X Setting of indoor fan speed High Splitting distances 5m 5m 5m 5m Operation in Heating mode Model HCKU 1066 Outdoor Unit X4 ...

Page 213: ...t is not sufficient to satisfy the user s comfort needs The air conditioner could not work efficiently if air filters on one or more Indoor Units are clogged or dirty Make sure the room temperature has not yet reached the desired level compare the room temperature with the set temperature Windows or doors are open Make sure the airflow speed is not set to LO Make sure the air inlet or outlet on bo...

Page 214: ... of malfunction Malfunction of EEPROM parameters Communication error between Indoor Unit Outdoor Unit Transmission error of data sequence along signal line Malfunction of fan motor beyond control on Indoor Unit Malfunction of temperature sensor broken or in short circuit on Outdoor Unit Malfunction of temperature sensor T1 or T2 Indoor Unit P0 P1 p2 Protection Code Outline of Protection function O...

Page 215: ...n on the Display of Multi Liberty HKEU X Indoor Unit Error Codes on Indoor Unit Outline of malfunction E 0 EEPROM malfunction Disconnect the system Wait some minutes then connect the system to power supply again Does the trouble occur again EEPROM memory is well fitted in the base of Indoor Unit s PCB NO Problem solved it was a transitory malfunction NO Fit in EEPROM memory in the base firmly YES ...

Page 216: ...tem by using IR Remote Controller Check connections of L N S lines and of Ground line between each Indoor Unit and the Outdoor Unit Is Outdoor Unit s PCB connected to the Ground correctly Troubleshooting for Error Codes shown on Display of Multi Liberty HKEU X Indoor Unit Check connections and test system again Correct or restore connections Replace Outdoor Unit s PCB Replace Indoor Unit s PCB Aft...

Page 217: ...s Indoor Unit s PCB is defective Replace the indoor PCB NO YES Are power lines and connectors connections OK Error Code on Indoor Unit Outline of malfunction E 2 Transmission error of data sequence along the signal line Troubleshooting for Error Codes shown on Display of Multi Liberty HKEU X Indoor Units Transmission error of data sequence along the signal line ...

Page 218: ...r on Indoor Unit Replace Indoor Unit s PCB Error Code on Indoor Unit Outline of malfunction E 3 Malfunction of fan motor beyond control on Indoor Unit Troubleshooting for Error Codes shown on Display of Multi Liberty HKEU X Indoor Units Malfunction of fan motor beyond control on Indoor Unit Disconnect the system from power supply Can the fan turn easily by hand Detach fan s rotary device from moto...

Page 219: ...d further on Replace Outdoor Unit s PCB YES Replace Outdoor Unit s PCB The problem is solved Restore temperature sensors connectors and connect them again on Outdoor Unit s PCB Error Code on Indoor Unit Outline of malfunction E 5 Troubleshooting for Error Codes shown on Display of Multi Liberty HKEU X Indoor Units Malfunction of temperature sensor T3 heat exchanger s temperature or temperature sen...

Page 220: ...se that are listed further on Replace Indoor Unit s PCB YES Replace Indoor Unit s PCB The problem is solved Restore temperature sensors connectors and connect them again on Indoor Unit s PCB Error on Indoor Unit Outline of malfunction E 6 Malfunction of T1 sensor or T2 sensor on Indoor Unit Troubleshooting for Error Codes shown on Display on Multi Liberty HKEU X Indoor Units Malfunction of tempera...

Page 221: ...r Module are there scorch marks on the components Replace the Inverter Module YES Protection Code on Indoor Unit Outline of Protection function P 0 Overcurrent error on Outdoor Unit s Inverter Module Are compressor s wirings OK Is it breakdown between P N P V P W N V N W or V W of Inverter Module Replace the Inverter Module Inspect the compressor Troubleshooting for Protection Codes shown on Displ...

Page 222: ...ct the Electricity Company for solving the problem Too low too high power supply voltage on Outdoor Unit Disconnect the system and wait some minutes Connect the system to power supply again Has the anomaly been solved Measure the transformer s secondary side voltage on Outdoor Unit s PCB Is the detected voltage 12 14V AC NO YES Protection Code on Indoor Unit Outline of Protection function Troubles...

Page 223: ...mal protection Replace Outdoor Unit s main PCB Check if refrigerant circuit is obstructed capillary etc P 2 Intervention of protection for compressor s overtemperature Protection Code on Indoor Unit Outline of Protection function Troubleshooting for Protection Codes shown on Display of Multi Liberty HKEU X Indoor Units If temperature detected on compressor is higher than 120 C the system is stoppe...

Page 224: ...es compressor start Does anomaly persist display of Error Code even if compressor has been running for a certain time Check refrigerant amount in the refrigerant circuit by measuring pressure values YES Intervention of protection for compressor s overcurrent YES NO NO NO Protection Code on Indoor Unit Outline of Protection function Troubleshooting for Protection Codes shown on Display of Multi Lib...

Page 225: ... voltage correspond to the system s operation specifications NO Are wirings to compressor well connected Are wirings broken YES Disconnect wirings from compressor then try to restart the system Is Code P4 displayed again YES Inspect compressor Start the system in Cooling mode or in Heating mode according to the season By using a Tester measure the voltage on each compressor s wiring if wirings are...

Page 226: ...odes shown on Display of Multi Liberty HKEU X Indoor Unit On Indoor Units of the same system have operation modes not compatible among them been set see the Table below On the Indoor Units of the same system operation modes must be compatible among them see the Table below correct the setting YES Cooling Cooling Heating Fan OFF Heating Fan OFF YES YES YES YES YES YES YES YES YES YES YES YES NO NO ...

Page 227: ...t Malfunction of indoor temp sensor broken in short circuit T1 I U Malfunction of heat exchanger s temp sensor broken in short circuit T2 I U Faulty EEPROM on Indoor Unit Intervention of a protection on Inverter Module IPM Malfunction on drain condensation system I U HTFU X only Troubleshooting by LED Indicators of Multi Liberty HTFU HSFU HRBU X Indoor Units Flashing OFF Flashing Flashing Flashing...

Page 228: ... of T1 sensor are they both OK Replace T1 sensor Does malfunction indication appear again Do R T features of T1 sensor correspond to those that are listed further on Replace Indoor Unit s PCB YES Replace Indoor Unit s PCB The problem is solved Restore temperature sensor s connector and connect it again to Indoor Unit s PCB Malfunction of temperature sensor T1 indoor temperature on Indoor Unit Trou...

Page 229: ...nsor are both OK Replace T2 sensor Does malfunction indication appear again Do R T features of T2 sensor correspond to those that are listed further on Replace Indoor Unit s PCB YES Replace Indoor Unit s PCB The problem is solved Restore connector of temperature sensor and connect it again to Indoor Unit s PCB Malfunction of temperature sensor T2 heat exchanger s temperature sensor on Indoor Unit ...

Page 230: ...em of Outdoor Unit s PCB Check PCB wirings according to wiring diagram Are connections OK Disconnect the system from power supply Wait some minutes then connect the system to power supply again Start the system by IR Remote Control Check connections of L N S lines and of Ground line between each Indoor Unit and the Outdoor Unit Is Outdoor Unit s PCB connected to Ground properly Check connections a...

Page 231: ...ell inserted in the base and in the correct position basing on the mark on the PCB Re install the chip or try to replace it by taking another one from a same model of PCB in order to verify if the chip itself is not faulty Main PCB faulty for exemple water infitrations etc Replace the PCB YES YES ALARM indicator on Indoor Unit flashes quickly Does any cause provoke malfunction of float switch oper...

Page 232: ... by LED indicators of Multi Liberty HTFU HSFU HRBU X Indoor Units Malfunction of Indoor Unit s EEPROM or PCB Replace Indoor Unit s PCB Disconnect the system from power supply Wait some minutes then connect the system again to power supply Does anomaly persist EEPROM memory is well inserted in the base on Indoor Unit s PCB NO The problem is solved it was only a transitory anomaly NO Insert EEPROM m...

Page 233: ...S Disconnect wirings from compressor then try to restart the system Is Code P4 displayed again YES NO Replace Outdoor Unit s main PCB YES Correct connections on connectors and make power supply voltage correspond to the system s operation specifications Inspect compressor Start the system in Cooling mode or in Heating mode according to the season By using a Tester measure the voltage on each compr...

Page 234: ... NO Do connectors of T3 and T4 temperature sensors and the wirings of both sensors OK Replace one or both sensors T3 T4 Does Code E5 appear again Do R T features of sensors correspond to those that are liseted further on Replace Outdoor Unit s PCB YES Replace Outdoor Unit s PCB The problem is solved Restore the connectors of temperature sensors and connect them again to Outdoor Unit s PCB Malfunct...

Page 235: ...oor Units NO NO SÌ Do power supply voltage values correspond to the the system s operation specification Replace Outdoor Unit s PCB The problem is solved Error of power supply voltage on Outdoor Unit Disconnect the system from power supply and wait some minutes Connect the system to power supply again Has anomaly been solved Measure the voltage on secondary side of transformer on Outdoor Unit s PC...

Page 236: ...refrigerant Check the connections and test the system again Replace thermal protection on compressor Replace Outdoor Unit s main PCB Verify if there are obstructions on refrigerant circuit capillary etc Intervention of protection for compressor s overtemperture If temperature detected on compressor is higher than 120 C the system is stopped for intervention of thermal protection of compressor itse...

Page 237: ...dicators of Multi Liberty HTFU HSFU HRBU X Indoor Units YES Cooling Cooling Heating Fan OFF Heating Fan OFF YES YES YES YES YES YES YES YES YES YES YES YES NO NO NO NO Table of compatibility between Indoor Units operation modes On Indoor Units of the same system have operation modes not compatible among them been set see the Table below On the Indoor Units of the same system operation modes must b...

Page 238: ...alues must be the following Between U R and V S 1Ω Between U R and W C 1Ω Between V S and W C 1Ω Start only one Indoor Unit by Remote Controller After 3 minutes delay does compressor start Does anomaly persist display of Error Code even if compressor has been running for a certain time Check refrigerant amount in the refrigerant circuit by measuring pressure values If refrigerant charge is correct...

Page 239: ... Unit Intervention of a protection on Inverter Module IPM Troubleshooting by LED indicators on Multi Liberty HFIU 266 X 356 X Indoor Units TIMER LED PRE DEF LED OPERATION LED Flashing Flashing Flashing Flashing Flashing Flashing ON OFF OFF Flashing OFF OFF OFF Flashing OFF Flashing Flashing OFF Flashing OFF ON Flashing OFF OFF LED Display on Indoor Units 1 In case of operation malfunctions the cod...

Page 240: ...or Unit OPERATION TIMER PRE DEF Flashing OFF OFF Check the connector and wirings of T1 sensor are they both OK Replace T1 sensor Does malfunction indication appear again Do R T features of T1 sensor correspond to those that are listed further on Replace Indoor Unit s PCB Replace Indoor Unit s PCB The problem is solved Restore temperature sensor s connector and connect it again to Indoor Unit s PCB...

Page 241: ... Unit OPERATION TIMER PRE DEF OFF OFF Flashing Check connector and wirings of T2 sensor are both OK Replace T2 sensor Does malfunction indication appear again Do R T features of T2 sensor correspond to those that are listed further on Replace Indoor Unit s PCB Replace Indoor Unit s PCB The problem is solved Restore connector of temperature sensor and connect it again to Indoor Unit s PCB Malfuncti...

Page 242: ...ing Power supply problem of Outdoor Unit s PCB Check PCB wirings according to wiring diagram Are connections OK Disconnect the system from power supply Wait some minutes then connect the system to power supply again Start the system by IR Remote Control Check connections of L N S lines and of Ground line between each Indoor Unit and the Outdoor Unit Is Outdoor Unit s PCB connected to Ground proper...

Page 243: ...ine of malfunction NO NO YES YES OPERATION TIMER PRE DEF Flashing Flashing OFF Malfunction of Indoor Unit s EEPROM or PCB Replace Indoor Unit s PCB Disconnect the system Wait some minutes then connect the system to power supply again Does the trouble occur again EEPROM memory is well fitted in the base of Indoor Unit s PCB Problem solved it was a transitory malfunction Fit in EEPROM memory in the ...

Page 244: ...ngs broken Disconnect wirings from compressor then try to restart the system Is Code P4 displayed again Replace Outdoor Unit s main PCB Correct connections on connectors and make power supply voltage correspond to the system s operation specifications Inspect compressor Start the system in Cooling mode or in Heating mode according to the season By using a Tester measure the voltage on each compres...

Page 245: ...t on O U Do connectors of T3 and T4 temperature sensors and the wirings of both sensors OK Replace one or both sensors T3 T4 Does Code E5 appear again Do R T features of sensors correspond to those that are liseted further on Replace Outdoor Unit s PCB Replace Outdoor Unit s PCB The problem is solved Restore the connectors of temperature sensors and connect them again to Outdoor Unit s PCB Malfunc...

Page 246: ...sor itself Normal operation will be restored only when temperature value detected on compressor is lower than 90 C reactivation threshold of thermal protection Does refrigerant flow properly inside the system Does compressor start Are compressor motor s connections OK Does thermal protection on compressor operate properly Inspect Outdoor Unit s main PCB Does it malfunction Add refrigerant Check th...

Page 247: ... malfunction OPERATION TIMER PRE DEF Flashing OFF ON Cooling Cooling Heating Fan OFF Heating Fan OFF YES YES YES YES YES YES YES YES YES YES YES YES NO NO NO NO Table of compability between Indoor Units operation modes YES On Indoor Units of the same system have operation modes not compatible among them been set see the Table below On the Indoor Units of the same system operation modes must be com...

Page 248: ... OFF OFF LED Display on Indoor Units 1 In case of operation malfunctions the codified flashing of LED indicators on display allows to explain the cause of malfunction thus making easier the troubleshooting 2 As far as the list of malfunctions and the detailed outline of each malfunction are concerned see the following Table and the following pages Communication error between Indoor Unit Outdoor Un...

Page 249: ...t OPERATION TIMER PRE DEF Flashing Flashing OFF Check the connector and wirings of T1 sensor are they both OK Replace T1 sensor Does malfunction indication appear again Do R T features of T1 sensor correspond to those that are listed further on Replace Indoor Unit s PCB Replace Indoor Unit s PCB The problem is solved Restore temperature sensor s connector and connect it again to Indoor Unit s PCB ...

Page 250: ...Power supply problem of Outdoor Unit s PCB Check PCB wirings according to wiring diagram Are connections OK Disconnect the system from power supply Wait some minutes then connect the system to power supply again Start the system by IR Remote Control Check connections of L N S lines and of Ground line between each Indoor Unit and the Outdoor Unit Is Outdoor Unit s PCB connected to Ground properly C...

Page 251: ... malfunction NO NO YES YES OPERATION TIMER PRE DEF Flashing Flashing Flashing Malfunction of Indoor Unit s EEPROM or PCB Replace Indoor Unit s PCB Disconnect the system Wait some minutes then connect the system to power supply again Does the trouble occur again EEPROM memory is well fitted in the base of Indoor Unit s PCB Problem solved it was a transitory malfunction Fit in EEPROM memory in the b...

Page 252: ...ndications on 2 digit display placed on Outdoor Unit s PCB On 2 digit display placed on Outdoor unit s PCB is an Error Code shown E1 E2 E3 E6 E4 E5 E7 YES A malfunction on Outdoor Unit is displayed See the detailed outline of each Error Code further on NO On 2 digit display on Outdoor Unit s PCB is a Protection Code shown P01 P1 P2 P3 P4 P6 YES Intervention of a protection function on Outdoor Unit...

Page 253: ...n OPERATION TIMER PRE DEF Flashing OFF Flashing Cooling Cooling Heating Fan OFF Heating Fan OFF YES YES YES YES YES YES YES YES YES YES YES YES NO NO NO NO Table of compability between Indoor Units operation modes YES On Indoor Units of the same system have operation modes not compatible among them been set see the Table below On the Indoor Units of the same system operation modes must be compatib...

Page 254: ... of temperature sensor Gas side on Indoor Unit C Malfunction of temperature sensor Gas side on Indoor Unit D Malfunction of temperature sensor T3 outdoor air on Outdoor Unit Error of compressor voltage Communication error on Outdoor Unit s PCB Intervention of a protection function on Inverter Module p5 Protection for outdoor low temperature in Heating mode High pressure protection Models HCKU 816 ...

Page 255: ...door Unit Outline of malfunction E 0 Error of EEPROM parameters Indoor Unit The display shows E0 Error on Indoor Unit s EEPROM Check if EEPROM is well inserted into the base YES NO Insert EEPROM properly Replace Indoor Unit s Control PCB Troubleshooting flowcharts referred to Error Codes displayed on Outdoor Unit ...

Page 256: ...e Considering temperature does resistance value correspond to the features indicated in R T tables NO YES Replace wirings connector of sensor Replace Gas side temperature sensor on Indoor Unit A Replace Outdoor Unit s main PCB Is Gas side temperature sensor on Indoor Unit B properly connected Are sensor wirings OK YES NO Measure sensor resistance Considering temperature does resistance value corre...

Page 257: ...temperature does resistance value correspond to the features indicated in R T tables see further on Replace temperature sensor T3 on Outdoor Unit Restore wirings connector of sensor Replace Outdoor Unit s main PCB NO YES Is Gas side temperature sensor on Indoor Unit C properly connected Are sensor wirings OK YES NO Measure the sensor resistance Considering temperature does resistance value corresp...

Page 258: ...nd connect it again after some minutes reset of power supply NO Is Gas side temperature sensor on Indoor Unit D properly connected Are sensor wirings OK Error Code on Outdoor Unit Outline of malfunction E 6 Malfunction of Gas side temperature sensor on Indoor Unit D YES NO Measure the sensor resistance Considering temperature does resistance value correspond to the features indicated in R T tables...

Page 259: ...ti Liberty DC Inverter Outdoor Unit s display PCB shows Error Code E7 Error Code on Outdoor Unit Outline of malfunction E 7 Communication error on Outdoor Unit s PCB Replace Outdoor Unit s main PCB Troubleshooting flowcharts referred to Error Codes displayed on Outdoor Unit ...

Page 260: ...the specifications indicated in the corresponding tables see further on Replace Outdoor Unit s main PCB Replace temperature sensor on compressor discharge If detected temperature on compressor discharge is higher than 115 C for at least 10 seconds the system is stopped Normal operation can be restored only if temperature value detected on compressor discharge is lower than 90 C Protection for comp...

Page 261: ...udoor Unit s main PCB Check if refrigerant circuit is obstructed capillary etc Intervention of protection for compressor overtemperature If temperature detected on compressor is higher than 120 C the system is stopped for the intervention of thermal protection of compressor itself Normal operation can be restored only if temperature value detected on compressor is lower than 90 C reactivation thre...

Page 262: ...rol PCB Are they OK Disconnect connector from the Sensor then check if normal operation of system is restored YES YES YES NO YES YES NO NO NO NO NO NO Check if refrigerant circuit is obstructed Does 4 way valve operate properly Do expansion valves EXV operate properly Empty refrigerant by recovering it Eliminate obstruction along the circuit carry out the vacuum procedure and weighed out recharge ...

Page 263: ...ly designed for R410A to find it Connect the pressure gauge to a check joint of Outdoor Unit and verify if pressure gauge shows a pressure value lower than 0 15MPa Measure low pressure value on the circuit is it OK YES NO NO Check if refrigerant circuit is obstructed Does 4 way valve operate properly Do expansion valves EXV operate properly Intervention of low pressure protection Models HCKU 816 X...

Page 264: ... Between U R and V S 1Ω Between U R and W C 1Ω Between V S and W C 1Ω Start only one Indoor Unit by remote controller After 3 minute delay does compressor start Does error Error Code display occur again even after compressor has operated for a certain time Check refrigerant amount inside refrigerant circuit by measuring pressure values Faulty compressor Replace it YES Intervention of protection fo...

Page 265: ...d again YES Inspect compressor Start system in Cooling mode or in Heating mode according to the season By using a Tester measure voltage on each wiring to compressor if wirings are energized but compressor does not start compressor is faulty and it is necessary to replace it Measure resistance on compressor s terminals Normally the detected values must be the following Between U R and V S 1Ω Betwe...

Page 266: ... or if outdoor temperature keeps higher than 5 C for more than 10 minutes P 5 Outline of protection function Troubleshooting flowcharts referred to Protection Codes displayed on Outdoor Unit Protection Code on Outdoor Unit The display shows P5 Considering temperature does resistance of temperature sensor T3 correspond to the values indicated on R T Tables see further on in this Section of Service ...

Page 267: ... on Replace thermistor T3 YES YES YES YES Replace Outdoor Unit s Control PCB Replace Outdoor Unit s Control PCB Hypothesis 1 Is outdoor temperature too high Hypothesis 2 Is outdoor heat exchanger dirty or clogged Unit stops Clean outdoor heat exchanger Empty refrigerant by recovering it Eliminate obstruction along the circuit carry out the vacuum procedure and the weighed out recharge of R410A Hyp...

Page 268: ...electrolytic condensers the ends of a ceramic resistance of 1500Ω to 2000Ω may be put in contact with the terminals of each condenser This procedure is shown in the Figure above Electrolytic condenser DANGER HIGH VOLTAGE Ceramic resistance Resistance values of temperature sensors thermistors Temperature sensors on system are the following T1 Indoor temperature sensor T2 Temperature sensor on Indoo...

Page 269: ...tifier 1 2 on Inverter Module and other components a Rectifier 1 2 Input 220 230V AC Output 310V AC b Inverter Module 3 Phase Terminals U V W see Table below Resistance values on Rectifier 1 2 a By using a Tester carry out the measurements on both Rectifiers as it is shown in the Table below Check if detected values correspond to reference values b If LED on each Rectifier does not light up the co...

Page 270: ...24 1 38 935 36 492 34 165 6 70 6 38 1 23 1 21 0 36 857 34 596 32 440 6 53 6 23 1 21 1 19 1 34 898 32 807 30 810 6 38 6 09 1 18 1 17 2 33 055 31 120 29 271 6 22 5 94 1 16 1 15 3 31 317 29 528 27 815 6 06 5 80 1 14 1 12 4 29 681 28 026 26 440 5 90 5 66 1 12 1 10 5 28 138 26 608 25 140 5 75 5 52 1 10 1 08 6 26 682 25 268 23 909 5 60 5 38 1 07 1 06 7 25 310 24 003 22 745 5 45 5 24 1 05 1 03 8 24 016 2...

Page 271: ...5 10 4 97 1 28 1 25 49 3 776 3 590 3 409 5 18 5 04 1 30 1 28 50 3 632 3 451 3 274 5 25 5 12 1 33 1 30 51 3 495 3 318 3 146 5 33 5 19 1 35 1 33 52 3 363 3 191 3 023 5 41 5 26 1 41 1 36 53 3 237 3 069 2 905 5 49 5 34 1 43 1 38 54 3 116 2 952 2 793 5 56 5 41 1 46 1 41 55 3 001 2 841 2 685 5 64 5 48 1 48 1 44 56 2 890 2 734 2 582 5 71 5 55 1 51 1 46 57 2 784 2 632 2 484 5 79 5 62 1 54 1 49 58 2 682 2 ...

Page 272: ...18 7 66 7 39 2 35 2 32 89 0 921 0 855 0 791 7 69 7 43 2 38 2 35 90 0 892 0 828 0 766 7 73 7 46 2 41 2 37 91 0 864 0 802 0 742 7 76 7 49 2 43 2 40 92 0 838 0 777 0 719 7 80 7 52 2 46 2 43 93 0 812 0 753 0 696 7 82 7 54 2 48 2 45 94 0 787 0 730 0 675 7 85 7 57 2 51 2 48 95 0 763 0 708 0 654 7 87 7 59 2 54 2 51 96 0 740 0 686 0 634 7 89 7 61 2 56 2 53 97 0 718 0 666 0 615 7 91 7 62 2 59 2 56 98 0 697...

Page 273: ...5 78 75 8 084 115 2 422 4 222 8 36 34 32 76 7 82 116 2 357 3 211 4 37 32 94 77 7 566 117 2 294 2 200 7 38 31 62 78 7 321 118 2 233 1 190 5 39 30 36 79 7 086 119 2 174 0 180 9 40 29 15 80 6 859 120 2 117 1 171 9 41 28 81 6 641 121 2 061 2 163 3 42 26 9 82 6 43 122 2 007 3 155 2 43 25 86 83 6 228 123 1 955 4 147 6 44 24 85 84 6 033 124 1 905 5 140 4 45 23 89 85 5 844 125 1 856 6 133 5 46 22 89 86 5 ...

Page 274: ...NSTALLATION INS 2 4 1 CHECKS AND PRELIMINARY OPERATIONS INS 4 4 2 INSTALLATION OF HKEU 206 356 356 536 X INDOOR UNITS INS 7 4 3 INSTALLATION OF HTFU 206 356 356 536 X INDOOR UNITS INS 19 4 4 INSTALLATION OF HFIU 266 356 536 X INDOOR UNITS INS 32 4 5 INSTALLATION OF HSFU 356 536 X INDOOR UNITS INS 47 4 6 INSTALLATION OF HRBU 206 266 356 536 X INDOOR UNITS INS 63 4 7 INSTALLATION OF MULTI LIBERTY DC...

Page 275: ...ires Accurately connect wiring by using the proper cable and ensure that the external force of the cable is not conducted to the terminal connection part through properly securing it improper connection or securing can result in heat generation or fire Take care to insert the electrical cables into the electric box by the bottom side so as to avoid water that may reach the cable to enter the elect...

Page 276: ...way valve has been added to the vacuum pump This one way valve must be able to operate in case of accidental turn off of the vacuum pump itself i e blackout during air purge operations In particular the gauge manifold the service hoses the torque wrench for tightening of flare connections having 1 2 and 5 8 diameters the flaring tool and the refrigerant cylinder must be exclusively designed for R4...

Page 277: ...cutter 65mm diameter Fork wrench and adjustable spanner Digital or analogue multimeter Isolation resistance meter Roller pipe cutter Electrical cables Protection cover Rubber pads Pipe clips Adhesive Flexible drain hose Refrigerant pipings Putty Vinyl adhesive tape IR Remote Controls Finishing of wall hole I U side For taping cables and pipings Wiring between Units Absorption of vibrations O U Fix...

Page 278: ...nitrogen atmosphere Delivery of system Test of system Installation of service panels Check of leakages Eventual additional charge Purging method Pressure test Refrigerant pipings Installation of Outdoor Unit Base of Outdoor Unit Wiring Installation of remote controls Insulation Canalization works Drain hose Refrigerant pipings Installation of Indoor Units Assignment of works 1 Check the required r...

Page 279: ...r min thickness of refrigerant pipings refer to the following table The star indicates tools that have been designed for R410A refrigerant specifically Please keep these tools separately from those that are currently used for other kind of refrigerant Additional charge with R410A refrigerant Check of refrigerant required by system Before starting installation check which refrigerant R410A is requi...

Page 280: ... your Dealer Use of air conditioner must be carried out in strict compliance with the instructions listed futher on Do not damage any parts of the air conditioner that carry refrigerant by piercing or perforating the piping with sharp or pointed objects by crushing or twisting the tubes or scraping off the surfaces coatings If the refrigerant spurts out and gets into eyes this may result in seriou...

Page 281: ...s of potential risks and damages the reported Instructions are classified in two types WARNING and CAUTION A strict observance of the Instructions is required to guarantee your personal safety and the safety of the environments where the Units are installed The following Instructions are related to the air conditioner s installation They have been reported also in the USER S MANUAL just to allow t...

Page 282: ...ourself The Units components can be reached only by opening or removing the covering panels and this involves exposure to high voltage Even by disconnecting power supply it is not always possible to avoid the risk of electric shocks Please always contact the Dealer or the Authorized Service Center for installation Never attempt to install the air conditioner by yourself because improper installati...

Page 283: ...time the air conditioner and gas burners Insufficient ventilation may cause lack of oxygen Do not place burners near airflow supplied by Indoor Unit For preventing the risk of electric shocks do not sprinkle water nor other liquid on Indoor Unit Do not clean the Indoor Unit by water spurts Do not expose food plants animals precise devices or works of art to direct airflow supplied by Indoor Unit W...

Page 284: ... pipings towards outside must be easy Air supplied by Indoor Unit must reach whole room n Installation must be avoided in places where there are the following conditions not exhaustive list There are sources of electromagnetic noises TV radio wireless appliances or fluorescent lamps Kitchens with high humidity and vapors oil sprinkles There are considerable sudden changes in power supply voltage 2...

Page 285: ...ke holes in wrong places Use 8 screw anchors 5mm Correct Wrong Lean Crack Damage of flare Partial Too outside Examples of piping flaring OK NO NO NO NO NO Right position of fixing plate as regards fixing surface OK NO NO Dimensions of Fixing plates for wall installation of Indoor Units Unit mm More than 150mm from the ceiling Indoor Unit s shape Fixing plate More than 120mm from wall More than 120...

Page 286: ...ings Remove the precut part see warning above then consequently bend the pipings by using the tube bender Properly orient Indoor Unit s refrigerant pipe fittings and flexible drain hose Indoor Unit s shape More than 150mm from ceiling Fixing plate More than 120mm from wall More than 120mm from wall Ø65mm hole left side for pipings Ø65mm hole right side for pipings HKEU 536 X Model 878 292 641 4 Dr...

Page 287: ...t pipe fittings so as to keep a distance not higher than 43mm between refrigerant pipe fittings and wall as it is shown in the Figure Wall Precut for connection on the left Precut for connection on the right Drain hose Heat insulation material Refrigerant pipings Drain duct Housing for cables and pipings Wiring between Units Join pipings and cables with adhesive tape Indoor Unit Corresponding posi...

Page 288: ...mporarily suspension of Indoor Units on upper hooks of fixing plate Insert a spacer wooden block or other object between the lower part of each Indoor Unit and its fixing plate to separate the Unit s base from wall and get space for carrying on work Tighten the connection definitively with a torque wrench and a spanner 7 Refrigerant pipings Oil flares back and indoor side of flare nuts by refriger...

Page 289: ...tection cover on Indoor Unit s right side 3 Always fix cables on screw terminal blocks firmly and always use the special wire clamps on Indoor Units to avoid that any traction on cables may be sent to terminal blocks contacts 4 If protection fuse is broken replace it by a fuse which is equivalent to original one 5 Outdoor Unit Power supply line must be for system only that is it must not be shared...

Page 290: ...wer supply terminal block Yellow Green Power supply on Outdoor Unit 1 Phase 220 240V 50 Hz Power source limitations 10 as regards rating value Voltage at starting 85 as regards rating value Calibrations of circuit breakers and min section of power cables Basic information on wiring for Multi Liberty DC Inverter systems Outdoor Unit 1 2 N Min section of cables prewiring up 6m between each Indoor Un...

Page 291: ...ses sent by remote control and do they work properly on all Units 5 Does air supplied by Indoor Units reach all installation environment uniformily 6 Does condensate water drip from Indoor Units into the room 7 Does temperature difference between air inlet and air outlet DT on each Indoor Unit show a satisfactory performance of system 11 Final checks 1 On Outdoor Unit check the correspondence betw...

Page 292: ... your Dealer Use of air conditioner must be carried out in strict compliance with the instructions listed futher on Do not damage any parts of the air conditioner that carry refrigerant by piercing or perforating the piping with sharp or pointed objects by crushing or twisting the tubes or scraping off the surfaces coatings If the refrigerant spurts out and gets into eyes this may result in seriou...

Page 293: ...s of potential risks and damages the reported Instructions are classified in two types WARNING and CAUTION A strict observance of the Instructions is required to guarantee your personal safety and the safety of the environments where the Units are installed The following Instructions are related to the air conditioner s installation They have been reported also in the USER S MANUAL just to allow t...

Page 294: ...yourself The Units components can be reached only by opening or removing the covering panels and this involves exposure to high voltage Even by disconnecting power supply it is not always possible to avoid the risk of electric shocks Please always contact the Dealer or the Authorized Service Center for installation Never attempt to install the air conditioner by yourself because improper installat...

Page 295: ...door Unit by water spurts Do not expose food plants animals precise devices or works of art to direct airflow supplied by Indoor Unit When necessary replace fuses with new ones of same type Never replace a fuse by a piece of iron or copper Never touch heat exchangers metal flaps on Indoor and Outdoor Units This could cause hurts due to the sharp shape of flaps Take care of this especially if air i...

Page 296: ...or a long time Drain hose must be correctly installed so as the condensate water can easily flow away Laying of cables and refrigerant pipings towards outside must be easy Air supplied by Indoor Unit must reach whole room n Installation must be avoided in places where there are the following conditions not exhaustive list There are sources of electromagnetic noises TV radio wireless appliances or ...

Page 297: ... vibration please enforce the ceiling when necessary b Please select the position of installation hooks for wall anchors Ø12mm hook ended supplied with the Indoor Unit indicated on the installation paper board m Drill 4 holes Ø12mm 50 55mm deep at the selected positions on the ceiling Then embed the expansible hooks fittings m Face the concave side of the installation hooks toward the expansible h...

Page 298: ...lower part is about 10 12mm higher than false ceiling s lower side m After Indoor Unit has been positioned perfectly horizontally definitively tighten the nut and the lock nut near each square bracket of Unit s body Fig 5 CASE B New built houses and false ceilings a In case of new built house the hook can be embedded in advance But it should be strong enough to bear the Indoor Unit and will not be...

Page 299: ...corner o decorative panel Caution m Always observe installation position of decorative panel previously described 4 Installation of decorative panel on Indoor Unit Cautions m Never put the panel face down on floor or against the wall or near object or materials which may damage its surface m Never crash or strike the decorative panel to avoid to damage its structure this may cause problems during ...

Page 300: ... Figure below humidity condensation on false ceiling with consequent water dripping inside the room m If after fastening the panel s bolts thoroughly there is still a gap between inside surface of decorative panel and false ceiling it is needed to adjust again the installation height of Indoor Unit This is possible by simply removing the 4 corners of panel and by adjusting the Indoor Unit s below ...

Page 301: ...ut piping flaring 6 Refrigerant pipings Oil flares back and indoor side of flare nuts by refrigerant synthetic oil Align to pipe fittings the axis of pipings to be connected and screw flare nuts on threaded pipe union of Indoor Unit First of all tighten the connection manually as much as possible For definitive tightening use a torque wrench and observe fastening torques indicated by Manufacturer ...

Page 302: ...be at least 100mm beneath the drain connection point of each Unit For exhaust manifold use a piping VP 30 or wider diameter 360mm Max raising of drain pipe 8 Wiring 1 Indoor Units Power lines and signal cable min section of 1 5mm2 for all Models prewired up on each Indoor Unit and provided of plug must pass from Indoor Unit to Outdoor Unit by starting from Indoor Unit s electric box and getting to...

Page 303: ...wer supply terminal block Yellow Green Power supply on Outdoor Unit 1 Phase 220 240V 50 Hz Power source limitations 10 as regards rating value Voltage at starting 85 as regards rating value Calibrations of circuit breakers and min section of power cables Basic information on wiring for Multi Liberty DC Inverter systems Outdoor Unit 1 2 N Min section of cables prewiring up 6m between each Indoor Un...

Page 304: ... environment uniformily 6 Does condensate water drip from Indoor Units into the room 7 Does temperature difference between air inlet and air outlet DT on each Indoor Unit show a satisfactory performance of system 9 Final checks 1 On Outdoor Unit check the correspondence between wiring and piping connections for each Indoor Unit 2 Check way and laying of drain hose and electrical wiring for each In...

Page 305: ...our Dealer Use of air conditioner must be carried out in strict compliance with the instructions listed futher on Do not damage any parts of the air conditioner that carry refrigerant by piercing or perforating the piping with sharp or pointed objects by crushing or twisting the tubes or scraping off the surfaces coatings If the refrigerant spurts out and gets into eyes this may result in serious ...

Page 306: ...s of potential risks and damages the reported Instructions are classified in two types WARNING and CAUTION A strict observance of the Instructions is required to guarantee your personal safety and the safety of the environments where the Units are installed The following Instructions are related to the air conditioner s installation They have been reported also in the USER S MANUAL just to allow t...

Page 307: ...yourself The Units components can be reached only by opening or removing the covering panels and this involves exposure to high voltage Even by disconnecting power supply it is not always possible to avoid the risk of electric shocks Please always contact the Dealer or the Authorized Service Center for installation Never attempt to install the air conditioner by yourself because improper installat...

Page 308: ...e same time the air conditioner and gas burners Insufficient ventilation may cause lack of oxygen Do not place burners near airflow supplied by Indoor Unit For preventing the risk of electric shocks do not sprinkle water nor other liquid on Indoor Unit Do not clean the Indoor Unit by water spurts Do not expose food plants animals precise devices or works of art to direct airflow supplied by Indoor...

Page 309: ...se IR remote control to direct sunlight for a long time This could obstruct or prevent the transmission of signals to Indoor Unit and damage plastic parts of remote control the buttons and the display 3 Never expose remote control to the heat coming from stoves sprinklings of water or oil vapors Never expose remote control to solvents or by products of oil 4 If air conditioner is not operated for ...

Page 310: ...inlet of Unit nor air drafts coming from outdoor which could interfere with Unit s operation A uniform distribution of air supplied by Unit must be assured inside whole room Laying of refrigerant pipings and drain hose installation must be easy There must be no heating sources near Unit Caution Install Units at more than 1m from radio and TV appliances and set power lines and wiring at a suitable ...

Page 311: ... anchors Suspend Indoor Unit to installation brackets previously set Unit s bottom can be placed on the floor as it is shown in the Figure below or it can be installed at medium height from floor However Unit s body must always be installed vertically along a wall 2 2 Fixing of Indoor Unit 195mm Bracket Washer Screw anchor 6mm ...

Page 312: ...gure 3 1 1 2 Open frontal grille to 90 after removing the string see Figure 3 1 2 Remove the grid from Indoor Unit by detaching the bottom hinges Unscrew the 4 screws of Indoor Unit s frontal panel see Figure 3 1 2 3 Lift frontal panel by about 30 see Figure 3 1 3 now it is possible to remove it from back side of Indoor Unit 4 The position of Indoor Unit s refrigerant piping connections is shown i...

Page 313: ...or and Outdoor Units Thermally insulate pipings on both sides Liquid Gas as it is indicated further on 1 Drill a wall hole of suitable diameter for the passage of wiring and refrigerant connections and cover the hole s inside by a protective sleeve 2 Strictly tape wiring and refrigerant pipings 3 Refrigerant pipings must be set from outside to inside installation room 4 Connect refrigerant pipings...

Page 314: ... insufficient tightening is not able to assure perfect tightness of flare At the end of tightening there must be no leakages near connections points Caution Never bend pipings at right angle Bend the piping so as the bend is in the middle of the concerned straight section Take care to keep a radius of curvature as wide as possible Do not bend several times the same section of piping Oil as it is s...

Page 315: ...e must not be wavy or higher than specified 6 It is recommended to reduce as much as possible drain piping lenght and to prepare if needed special supporting structures which prevent piping from bending under its own weight 7 Do not lead drain piping to manholes where there could be toxic harmful or inflammable gas This gas could enter installation rooms through drain piping thus being a danger fo...

Page 316: ...rth breaker on power supply lines earth breaker must be specific for Inverter appliances Circuit breaker s calibration must be suitable to electric specifications of system 7 Do not supply power to system before checking several times if wiring has been carried out properly on terminal blocks connectors of Indoor and Outdoor Units 5 2 Access to terminal block of HFIU 266 356 536 X Indoor Units Fig...

Page 317: ...t any traction applied to connection cables between Indoor and Outdoor Units could be transmitted to terminal blocks contacts or to connectors For proper use of wire clamps please refer to the Figure below Room temperature sensor holder Figure 5 2 3 Figure 5 2 4 CORRECT Wire clamp Terminal blocks Grommet terminals WRONG L N S L N S ...

Page 318: ...wer supply terminal block Yellow Green Power supply on Outdoor Unit 1 Phase 220 240V 50 Hz Power source limitations 10 as regards rating value Voltage at starting 85 as regards rating value Calibrations of circuit breakers and min section of power cables Basic information on wiring for Multi Liberty DC Inverter systems Outdoor Unit 1 2 N Min section of cables prewiring up 6m between each Indoor Un...

Page 319: ...control installed on its bearing can be received by Indoor Unit 4 Test Set Cooling mode by remote controller and press ON OFF button on remote control itself to start system Check the following and in case of malfunctions please refer to final part of Section 3 Outdoor Units Troubleshooting of this Service Manual 1 Indoor Unit a Check if ON OFF button on remote controller allows to start stop oper...

Page 320: ...r Dealer Use of air conditioner must be carried out in strict compliance with the instructions listed futher on Do not damage any parts of the air conditioner that carry refrigerant by piercing or perforating the piping with sharp or pointed objects by crushing or twisting the tubes or scraping off the surfaces coatings If the refrigerant spurts out and gets into eyes this may result in serious in...

Page 321: ...s of potential risks and damages the reported Instructions are classified in two types WARNING and CAUTION A strict observance of the Instructions is required to guarantee your personal safety and the safety of the environments where the Units are installed The following Instructions are related to the air conditioner s installation They have been reported also in the USER S MANUAL just to allow t...

Page 322: ...yourself The Units components can be reached only by opening or removing the covering panels and this involves exposure to high voltage Even by disconnecting power supply it is not always possible to avoid the risk of electric shocks Please always contact the Dealer or the Authorized Service Center for installation Never attempt to install the air conditioner by yourself because improper installat...

Page 323: ...e same time the air conditioner and gas burners Insufficient ventilation may cause lack of oxygen Do not place burners near airflow supplied by Indoor Unit For preventing the risk of electric shocks do not sprinkle water nor other liquid on Indoor Unit Do not clean the Indoor Unit by water spurts Do not expose food plants animals precise devices or works of art to direct airflow supplied by Indoor...

Page 324: ...se IR remote control to direct sunlight for a long time This could obstruct or prevent the transmission of signals to Indoor Unit and damage plastic parts of remote control the buttons and the display 3 Never expose remote control to the heat coming from stoves sprinklings of water or oil vapors Never expose remote control to solvents or by products of oil 4 If air conditioner is not operated for ...

Page 325: ...s and drain hose must be easy There must be no heating source near Unit Caution 3 2 Fixing of Indoor Unit s body 1 Installation of bolts with anchors Ø10 4 pieces for Unit s fixing Check if Indoor Unit has not suffered damages by transport The packaging must be intact Otherwise logde a complaint to transporter During removal take care to the following symbols on packaging Concerning the details re...

Page 326: ...ng screw bolts must pass through wooden structure Fix them properly Fig 3 2 2 NEW CONCRETE BRICKS Insert the anchors inside the masonry as it is illustrated in the cases below ORIGINAL CONCRETE BRICKS Drill concrete structure and insert screw bolt anchors for at least 45 50mm Fig 3 2 5 Fig 3 2 3 Fig 3 2 4 Wooden floor on iron beams Strenghtened iron beam False ceiling Hanging screw bolts Blade sha...

Page 327: ...screw anchors 2 Suspend Indoor Unit to fixing brackets 3 Ceiling installation of HSFU 356 X 536 X Indoor Units Fig 3 2 9 Fig 3 2 8 A B Flare connections Gas side Liquid side Electric box Drain connection C D Fixing hooks E Fixing bracket Screw anchor Washer 6mm F G Suspension bracket 1 As it is shown in Fig 3 2 10 on the following page remove covering side panel on both sides right and left and ai...

Page 328: ...it to install brackets on Unit s body see Fig 3 2 12 3 Fix Indoor Unit to installation brackets then make it slide along the brackets slots see Fig 3 2 13 Fasten brackets fixing bolts to complete Unit s installation Side panel Air inlet grille Washer Threaded bolt Installation bracket Installation bracket Upper and lower nut Indoor Unit 8 13 mm Bolts for brackets max lenght 40mm Threaded bolt Brac...

Page 329: ...INS 56 DUAL TRIPLE POKER DC Inverter 4 Installation Multi Liberty DC Inverter Unit mm 907 200 203 20mm Fig 3 2 14 TOP VIEW LEFT SIDE VIEW ...

Page 330: ...rant pipings must be carried out by Authorized Technical Service in accordance with curnent regulations as fas as refrigerant installations are concerned Prevent water humidity polluting materials and foreign matters from entering pipins inside Refrigerant pipings must be carried out only after installation of Indoor and Outdoor Units Thermally insulate pipings on both sides Liquid Gas as it is in...

Page 331: ...ive tightening may cause the breaking of flare while an insufficient tightening is not able to assure perfect tightness of flare At the end of tightening there must be no leakages near connections points Caution Never bend pipings at right angle Bend the piping so as the bend is in the middle of the concerned straight section Take care to keep a radius of curvature as wide as possible Do not bend ...

Page 332: ...100 along whole piping path Pipe must not be wavy or higher than specified 5 It is advised to reduce drain piping lenght up to max 20m and to arrange if needed special supporting structures which prevent piping from bending under its own weight 6 For proper installation please refer to the Figures below Pipe must not be higher than specified Suitable slope downwards Pipe must not be wavy The drain...

Page 333: ...egulations as far as electric installation are concerned 2 These systems require one power supply line specific to the system only 3 Specifications of power supply voltage must correspond to plate specifications required by system 4 The system requires Ground wire for Indoor and Outdoor Units 5 Wiring must be carried out by Authorized Technical Service in accordance with wiring diagrams on the fol...

Page 334: ...wer supply terminal block Yellow Green Power supply on Outdoor Unit 1 Phase 220 240V 50 Hz Power source limitations 10 as regards rating value Voltage at starting 85 as regards rating value Calibrations of circuit breakers and min section of power cables Basic information on wiring for Multi Liberty DC Inverter systems Outdoor Unit 1 2 N Min section of cables prewiring up 6m between each Indoor Un...

Page 335: ...control installed on its bearing can be received by Indoor Unit 4 Test Set Cooling mode by remote controller and press ON OFF button on remote control itself to start system Check the following and in case of malfunctions please refer to final part of Section 3 Outdoor Units Troubleshooting of this Service Manual 1 Indoor Unit a Check if ON OFF button on remote controller allows to start stop oper...

Page 336: ... your Dealer Use of air conditioner must be carried out in strict compliance with the instructions listed futher on Do not damage any parts of the air conditioner that carry refrigerant by piercing or perforating the piping with sharp or pointed objects by crushing or twisting the tubes or scraping off the surfaces coatings If the refrigerant spurts out and gets into eyes this may result in seriou...

Page 337: ...s of potential risks and damages the reported Instructions are classified in two types WARNING and CAUTION A strict observance of the Instructions is required to guarantee your personal safety and the safety of the environments where the Units are installed The following Instructions are related to the air conditioner s installation They have been reported also in the USER S MANUAL just to allow t...

Page 338: ...yourself The Units components can be reached only by opening or removing the covering panels and this involves exposure to high voltage Even by disconnecting power supply it is not always possible to avoid the risk of electric shocks Please always contact the Dealer or the Authorized Service Center for installation Never attempt to install the air conditioner by yourself because improper installat...

Page 339: ...door Unit by water spurts Do not expose food plants animals precise devices or works of art to direct airflow supplied by Indoor Unit When necessary replace fuses with new ones of same type Never replace a fuse by a piece of iron or copper Never touch heat exchangers metal flaps on Indoor and Outdoor Units This could cause hurts due to the sharp shape of flaps Take care of this especially if air i...

Page 340: ...by considering that max lenght of provided cable is 6m 3 Never expose IR remote control to direct sunlight for a long time This could obstruct or prevent the transmission of signals to Indoor Unit and damage plastic parts of remote control the buttons and the display 4 Never expose remote control to the heat coming from stoves sprinklings of water or oil vapors Never expose remote control to solve...

Page 341: ...d by Unit must be distributed inside the room uniformily Laying of refrigerant pipings and drain hose must be easy There must be no heating source near Unit Caution 3 2 Fixing of Indoor Unit s body 1 Installation of bolts with anchors Ø10 4 pieces for Unit s fixing Check if Indoor Unit has not suffered damages by transport The packaging must be intact Otherwise logde a complaint to transporter Dur...

Page 342: ...ore Unit s fixing ႑ Installation of fixing devices depends on the nature of selected surface as it is indicated below WOODEN STRUCTURE Hanging screw bolts must pass through wooden structure Fix them properly Fig 3 2 2 NEW CONCRETE BRICKS Insert the anchors inside the masonry as it is illustrated in the cases below ORIGINAL CONCRETE BRICKS Drill concrete structure and insert screw bolt anchors for ...

Page 343: ...d horizontal position of Indoor Unit by lower fixing nuts provided with washer When height and Indoor Unit s horizontal position are correct fasten each fixing upper nut provided of their washer too Fasten nut and lock nut Spirit level Threaded bar Upper nut Lower nut Upper washer Lower washer Unit s bearing HRBU 206 266 356 X Models Unit mm 25 102 87 Air outlet 55 220 175 63 Pipe connection Gas s...

Page 344: ...d by operation of Indoor Unit may increase Air outlet grille Air outlet Air outlet Air outlet grille Fig 4 1 1 Fig 4 1 2 NO OK 4 Works on ducts 268 148 100 Fresh air inlet hole Ø100 250mm 500mm 500mm 829 874 375 HRBU 536 X Model Unit mm 25 102 87 220 175 268 148 100 206 206 1179 979 1179 1224 365 365 Fresh air inlet hole Ø100 250mm 500mm 500mm Pipe connection Gas side Ø12 7 1 2 Pipe connection Liq...

Page 345: ...in the Figure below Notes 1 Install supporting elements for air outlet duct so as the weight this component does not rest on Indoor Unit s fixing elements 2 Arrange an inspection hole closed by a trap door near air outlet duct so that it can be easily reachable for whatever operation of inspection and or maintenance 3 In case of installation in rooms where Indoor Unit s noise level is needed to be...

Page 346: ...d to install an air filter polypropylene net type provided with Indoor Unit on Indoor Unit s air inlet so as to prevent dust and foreign matters from entering Indoor Unit and reaching heat exchanger and or fans If there is an air inlet plenum the air filter is immediately visible after removing air inlet panel If there is no air inlet plenum air filter is placed in contact with Unit s body directl...

Page 347: ...of bends on pipings and splitting level distance between Indoor Units and Outdoor Unit respect limitations indicated by the Manufacturer 90 Off axis Deformed With burr Connection of refrigerant pipings must be carried out by Authorized Technical Service in accordance with curnent regulations as fas as refrigerant installations are concerned Prevent water humidity polluting materials and foreign ma...

Page 348: ... insufficient tightening is not able to assure perfect tightness of flare At the end of tightening there must be no leakages near connections points Caution Never bend pipings at right angle Bend the piping so as the bend is in the middle of the concerned straight section Take care to keep a radius of curvature as wide as possible Do not bend several times the same section of piping Oil as it is s...

Page 349: ...ust be properly insulated by close cells insulating material of suitable thickness near connection point on Indoor Unit and on the first portion at least 1m This precaution is for avoiding condensation forming on drain piping s outside 2 For drain piping please use a PVC of commercial type VP25 3 When installing piping on drain connection on Indoor Unit take care not to force excessively in order ...

Page 350: ...ur water inside drain piping and check if it flows down properly 2 Take care that drain piping is not pressed along its path 3 Along piping path there must be no portions with inverted slope 4 In new buildings drain hose test must be carried out before laying of superstructures as panels air spaces etc ...

Page 351: ...cifications of power supply voltage must correspond to plate specifications required by system 4 The system requires Ground wire for Indoor and Outdoor Units 5 Wiring must be carried out by Authorized Technical Service in accordance with wiring diagrams on the following pages 6 Main power supply switch circuit breaker must be at open circuit which determines all poles disconnection In opening posi...

Page 352: ...MANUAL OPERATION TIMER DEF FAN ALARM HCKU 406 X2 Outdoor Units Calibration of circuit breaker A Section of power cables mm2 HCKU 536 X2 12A 2 5 mm2 HCKU 606 X3 16A 4 0 mm2 HCKU 806 X3 20A 6 0 mm2 HCKU 706 X4 20A 6 0 mm2 HCKU 816 X4 HCKU 1066 X4 20A 6 0 mm2 32A 8 0 mm2 32A 8 0 mm2 Power supply on Outdoor Unit 1 Phase 220 240V 50 Hz Power source limitations 10 as regards rating value Voltage at star...

Page 353: ...nstallation Multi Liberty DC Inverter Power supply terminal block Outdoor Unit 1 2 N Min section of cables prewiring up 6m between each Indoor Unit and the Outdoor Unit All Models 1 5mm2 Indoor Unit A Indoor Unit B Indoor Unit C Indoor Unit D ...

Page 354: ... signals sent by remote control installed on its bearing can be received by Indoor Unit 4 Test Set Cooling mode by remote controller and press ON OFF button on remote control itself to start system Check the following and in case of malfunctions please refer to final part of Section 3 Outdoor Units Troubleshooting of this Service Manual 1 Indoor Unit a Check if ON OFF button on remote controller a...

Page 355: ...it may fall because of earthquakes or exceptional climatic occurrences The installation of a snow shelter must be possible according to climatic recurrent conditions in the environment Sufficient spaces must be kept free for repairing and maintenance of Unit Splitting level differences and max splitting distances that are foreseen for system must be observed also by taking into consideration the p...

Page 356: ...nit may fall down or overturn it is advised to install tie rods in addition to anchor bolts 4 x Ø8mm or 4 x Ø10mm on Outdoor Unit s base 2 The installation of a raised bearing bed as regards ground prevents snow from piling up around Outdoor Unit and at the same time it makes easier condensate and defrosting water drainage 3 Take care to fix Outdoor Unit perfectly horizontally Outlet direction of ...

Page 357: ...which belong to system to R410A refrigerant Finishing of installation strictly tape insulating material that wraps refrigerant pipings by proceeding from the bottom upwards Cover the pipings with closed cells insulation material resistant to temperatures of at least 120 C It is important that there is no air pocket between insulating material and the material which wraps refrigerant pipings 1 If t...

Page 358: ...ch belong to system to R410A refrigerant Finishing of installation strictly tape insulating material that wraps refrigerant pipings by proceeding from the bottom upwards Cover the pipings with closed cells insulation material resistant to temperatures of at least 120 C It is important that there is no air pocket between insulating material and the material which wraps refrigerant pipings 1 If ther...

Page 359: ...belong to system to R410A refrigerant Finishing of installation strictly tape insulating material that wraps refrigerant pipings by proceeding from the bottom upwards Cover the pipings with closed cells insulation material resistant to temperatures of at least 120 C It is important that there is no air pocket between insulating material and the material which wraps refrigerant pipings 1 If there i...

Page 360: ... belong to system to R410A refrigerant Finishing of installation strictly tape insulating material that wraps refrigerant pipings by proceeding from the bottom upwards Cover the pipings with closed cells insulation material resistant to temperatures of at least 120 C It is important that there is no air pocket between insulating material and the material which wraps refrigerant pipings 1 If there ...

Page 361: ... C NOTE For each Indoor Unit to be connected except for 206 X 266 X Indoor Units it is required the use of diameter adapter Ø9 52 3 8 Ø12 7 1 2 provided with the Outdoor Unit to be installed on the corresponding piping connection Gas side of Outdoor Unit see Section 3 Outdoor Units Troubleshooting of this Service Manual Gas side piping Liquid side piping Ø6 35 1 4 Ø9 52 3 8 Max 15m 5m 5m Note If s...

Page 362: ...OTE For each Indoor Unit to be connected except for 206 X 266 X Indoor Units use is required of one of 2 diameter adapters Ø9 52 3 8 Ø12 7 1 2 provided with the Outdoor Unit to be installed on the corresponding piping connection Gas side of Outdoor Unit see Section 3 Outdoor Units Troubleshooting of this Service Manual Gas side piping Liquid side piping Note If splitting distance is more than 5m L...

Page 363: ... side for which no additional charge is required NOTE For each Indoor Unit to be connected except for 206 X 266 X Indoor Units use is required of one of 2 diameter adapters Ø9 52 3 8 Ø12 7 1 2 provided with the Outdoor Unit to be installed on the corresponding piping connection Gas side of Outdoor Unit see Section 3 Outdoor Units Troubleshooting of this Service Manual Gas side piping Liquid side p...

Page 364: ...ide for which no additional charge is required NOTE For each Indoor Unit to be connected except for 206 X 266 X Indoor Units use is required of one of 2 diameter adapters Ø9 52 3 8 Ø12 7 1 2 provided with the Outdoor Unit to be installed on the corresponding piping connection Gas side of Outdoor Unit see Section 3 Outdoor Units Troubleshooting of this Service Manual Gas side piping Liquid side pip...

Page 365: ...d distance on Liquid side for which no additional charge is required Gas side piping Liquid side piping Note If splitting distance is more than 5m Liquid side one line additional charge is 15g m of R410A Splitting level distance between O U and each I U Splitting level distance between I U of same system 1 Selection of pipings and specifications Thermally insulate pipings on Liquid side and Gas si...

Page 366: ...d distance on Liquid side for which no additional charge is required Gas side piping Liquid side piping Note If splitting distance is more than 5m Liquid side one line additional charge is 15g m of R410A Splitting level distance between O U and each I U Splitting level distance between I U of same system 1 Selection of pipings and specifications Thermally insulate pipings on Liquid side and Gas si...

Page 367: ...rd distance on Liquid side for which no additional charge is required Gas side piping Liquid side piping Note If splitting distance is more than 5m Liquid side one line additional charge is 15g m of R410A Splitting level distance between O U and each I U Splitting level distance between I U of same system 1 Selection of pipings and specifications Thermally insulate pipings on Liquid side and Gas s...

Page 368: ...g torque Liquid side 6 35mm 1 4 Gas side 9 52mm 3 8 15 7 19 6 N m 29 4 34 3 N m Gas side 12 7mm 1 2 49 0 53 9 N m Cut pipings at your desired length by using the special pipe cutter At the end of operation please remove burr from pipings ends by using the deburring tool Insert flared nut on piping before starting piping flaring Correct Wrong Lean Crack Damage of flare Partial Too outside Examples ...

Page 369: ...r Cooling operation during summer or defrosting water for Heating operation during winter towards a suitable drain point Note It is decidedly not recommended to install drain elbow and drain piping in places where low outdoor temperatures are often registered lower than or next to 0 C for long periods The Figure below shows the components previoulsy described and indicates the procedure to be foll...

Page 370: ... opening it completely Do not force valve beyond opening max limit as the valve s body may be broken Do not use tools other than Allen key for opening service valves 3 After opening the valve tighten the protective nut according to the recommended tightening torque see the Table below b Closing of service valves 1 Remove protective nut and use an Allen key having the dimensions indicated in the Ta...

Page 371: ...in the valves protective nuts according to the recommended tightening torque 7 Disconnect the charge hose from check joint on valve G then screw again the protective nut of check joint Outdoor Unit Indoor Unit Service valve G L Liquid side piping Gas side piping Gaugemanifold 76cmHg Lo valve Hi valve Charge hose Charge hose Vacuum pump Service valve with check joint Always carry out additional cha...

Page 372: ...ging of fuse 7 Min recommended sections of cables are the following a Power supply of Outdoor Unit 2 cables Ground wire Concerning min recommended sections of cables for each Model see the corresponding Table at the following pages b Connection lines pre wiring between each Indoor Unit and the Outdoor Unit 3 wires Ground wire with plug Min section 1 5mm2 for all Models 8 To reach Outdoor Unit s te...

Page 373: ...ower supply terminal block Yellow Green Power supply on Outdoor Unit 1 Phase 220 240V 50 Hz Power source limitations 10 as regards rating value Voltage at starting 85 as regards rating value Calibrations of circuit breakers and min section of power cables Basic information on wiring for Multi Liberty DC Inverter systems Outdoor Unit 1 2 N Min section of cables prewiring up 6m between each Indoor U...

Page 374: ...hase L 2 Wire with outside sheath of Black colour Neutal N 3 Wire with outside sheath of Blue colour Signal line S 4 Contact not connected 1 2 4 200 10 Frontal view of Plug Connector View A Yellow Green View A 50 10 20 10 6000 30 View A y e l l o w G r e e n G r o u n d B ro w n 1 P h a s e L B lu e 3 S ig n a l lin e S B l a c k 2 N e u t r a l N TO INDOOR UNIT S TERMINAL BLOCK Unit mm L N S XT1 ...

Page 375: ...706 X4 4 Indoor Units can be connected L N Ground Ground Power supply terminal block of Outdoor Unit Power supply 1 Phase 220 240V 50Hz Female for plug from Indoor Unit A Female for plug from Indoor Unit B Female for plug from Indoor Unit C INDOOR UNIT A 4 wire cable with plug length 6m INDOOR UNIT B 4 wire cable with plug length 6m INDOOR UNIT C 4 wire cable with plug length 6m Female for plug fr...

Page 376: ...talled on its bearing can be received by Indoor Unit 4 Test Set Cooling mode by remote controller and press ON OFF button on remote control itself to start system Check the following and in case of malfunctions please refer to final part of Section 3 Outdoor Units Troubleshooting of this Service Manual 1 Checks to be carried out on each Indoor Unit a Check if ON OFF button on remote controller all...

Page 377: ...erter 3 Unità Esterne e Diagnostica Multi Liberty DC Inverter CF 1 DUAL TRIPLE POKER DC Inverter 5 Funzioni Logiche di Controllo Multi Liberty DC Inverter Section 5 CONTROL FUNCTIONS Table of Contents 5 CONTROL FUNCTIONS CF 2 ...

Page 378: ...X Multi Liberty It refers to a function which is not available on these Models OPERATION indication lamp SELF CLEAN indication lamp This lamp illuminates when the air conditioner is in operation TIMER indication lamp CLEAN AIR indication lamp DEFROST indication lamp It lights up if a Timer function is set TIMER automatic start and or stop of air conditioner included SLEEP function Energy Saving fu...

Page 379: ...3 4 1 5 6 7 MANUAL OPERATION TIMER DEF FAN ALARM OPERATION LED Green 1 2 TIMER LED Green 3 DEF FAN LED Red 4 ALARM LED Red OPERATION LED When connecting the Unit to the power source the LED starts flashing During the air conditioner s operation it stops flashing and lights up TIMER LED It lights up when TIMER function is selected air conditioner s programmed start and or stop DEF FAN Defrost Prehe...

Page 380: ...Test mode in Cooling operation Buzzer It emits a sound when a signal from IR remote control is received by the Indoor Unit IR signal receiver It permits to receive signals from IR remote control 4 5 6 7 1 3 4 5 2 Outline of Display Panel on Console type Indoor Units HFIU X Multi LIberty IR receiver window It allows to receive the signals sent by IR remote controller 1 2 3 OPERATION LED It lights u...

Page 381: ...cally starts and this LED lights up The LED also lights up when indoor heat exchanger s Preheating function is activated This occurs in Heating mode in order to avoid the emission of air at low temperature anti cold drafts prevention function 4 5 PRE DEF LED Preheating Defrosting MANUAL button Emergency Test To start the air conditioner in Automatic mode when the remote controller is not available...

Page 382: ...ts HRBU X Multi Liberty 2 3 4 1 5 6 7 MANUAL OPERATION TIMER DEF FAN ALARM OPERATION LED Green 1 2 TIMER LED Green 3 DEF FAN LED Red 4 ALARM LED Red OPERATION LED When connecting the Unit to the power source the LED starts flashing During the air conditioner s operation it stops flashing and lights up TIMER LED It lights up when TIMER function is selected air conditioner s programmed start and or ...

Page 383: ...nction of CHECK reading checking of some operation parameters of system Every time SW1 microswitch is pressed the kind of displayed parameter changes in sequence as it is shown on the following Table MANUAL button Emergency Test To start the air conditioner in Automatic mode when the remote controller is not available and to start the Test mode in Cooling operation Buzzer It emits a sound when a s...

Page 384: ...lue x 8 17 Number of connected Indoor Units Indoor Units can communicate with the Outdoor Unit well Power supply of Outdoor Unit Actual value Power supply frequency Outdoor Unit Actual value 18 19 20 21 Room temperature I U 1 Actual value 2 Heat exchanger temperature I U 1 Actual value 2 23 Room temperature I U 2 Actual value 24 Heat exchanger temperature I U 2 Actual value 25 Room temperature I U...

Page 385: ...00 8000 Display 1 2 3 4 5 6 7 8 9 10 Capacity 2000 2500 2000 2500 3000 3800 4500 5000 5500 6100 6100 7000 6100 7000 7000 7500 7500 8000 8000 8900 1 2 3 4 5 6 7 8 9 10 11 Note Value in the Table are approximate Display Watt Watt Display Number of Indoor Units 1 1 2 2 4 4 3 3 Display Outdoor air temperature C Display Outdoor air temperature C Display Outdoor air temperature C 15 7 5 30 0 44 7 16 7 3...

Page 386: ...s been pressed for the 15th time The displayed value multiplied x 8 gives the actual value of EXV open angle 5 4 10 EXV open angle for Indoor Unit 4 Unit D This parameter is displayed after that SW1 has been pressed for the 16th time The displayed value multiplied x 8 gives the actual value of EXV open angle Display Outdoor air temperature C Display Outdoor air temperature C Display Outdoor air te...

Page 387: ...least 10 seconds compressor is stopped It can be restarted only when T5 90 C If T5 90 C control electronics applies no limit to compressor s operation frequency 5 5 3 Protection for too low power supply voltage and frequency on Outdoor Unit Depending on power supply voltage and frequency on Outdoor Unit control electronics monitors both values and may intervene till commanding the eventual stop of...

Page 388: ... that are monitored by control electronics are the following T1 indoor temperature sensor T2 heat exchanger temperature sensor of every Indoor Unit T3 outdoor temperature sensor and T4 heat exchanger temperature sensor on Outdoor Unit 5 5 7 Malfunction of indoor fan speed If for at least 60 seconds fan speed is higher than that foreseen for High speed setting increased by 300rpm or lower than 400r...

Page 389: ..._F5 ICOOLLMT1 In case of operation in Heating mode HEAT_F12 IHEATLMT8 HEAT_F11 IHEATLMT7 HEAT_F10 IHEATLMT6 HEAT_F9 IHEATLMT5 HEAT_F8 IHEATLMT4 HEAT_F7 IHEATLMT3 HEAT_F6 IHEATLMT2 HEAT_F5 IHEATLMT1 Current frequency Hz Current limit A Intervention by control electronics If current frequency is lower than COOL_F4 frequency will not be subjected to limitations If within 10 seconds since the start co...

Page 390: ...op of indoor fan For HKEU X Models If temperature detected by T2 sensor on Indoor Unit s heat exchanger keeps 4 C for 4 minutes and 10 seconds indoor fan is stopped The protection intervention will end when T2 8 C For HFIU X Models If temperature detected by T2 sensor on Indoor Unit s heat exchanger keeps 4 C for 3 minutes indoor fan is stopped The protection intervention will end when T2 8 C For ...

Page 391: ...eration mode compressor and fan of Outdoor Unit are stopped In this operation mode it is possible to set fan speed on Indoor Unit by selecting among the following options High Med Low Auto In this operation mode compressor and fan of Outdoor Unit are stopped In this operation mode operation of air outlet motorized flaps is the same as for operation in Cooling mode 5 6 1 Automatic control of fan sp...

Page 392: ...possible to set fan speed on Indoor Unit among the following options High Med Low Auto For HFIU X Multi Liberty Indoor Units only the 4th step of fan speed S Hi Super High or U Hi Ultra High can be selected by SW103 dip switches on dedicated micro PCB of Indoor Unit This speed setting is active in Powerful mode 5 7 2 If Auto setting is selected fan speed is automatically selected by control electr...

Page 393: ...Low and cannot be modified by the User HFIU X Models HTFU X HSFU X HRBU X Models T1 TS C 3 5 3 0 1 5 1 5 1 0 T1 TS C 4 0 3 0 1 0 High speed Low speed Medium speed High speed Low speed Medium speed T1 temperature detected inside the room Ts temperature set by remote control T1 temperature detected inside the room Ts temperature set by remote control Conditions Models of Indoor Units HKEU X HFIU X H...

Page 394: ...lti Liberty Indoor Units only the 4th step for fan speed S Hi Super High or U Hi Ultra High can be selected by SW103 dip switches on dedicated micro PCB of Indoor Unit This speed setting is active in Powerful mode 5 9 2 Anticold air draft prevention control at start in Heating mode At start this function has priority as regards speed setting by remote control In fact fan speed is controlled depend...

Page 395: ...r as it is shown in the following Table and diagrams HTFU X HSFU X HRBU X Models T2 temperature of Indoor Unit s heat exchanger T2 C 32 30 28 15 Set speed Low speed Fan OFF HFIU X Models T1 temperature detected inside the room Ts temperature set by remote control T1 Ts C 1 0 2 0 2 5 1 5 High speed Low speed Medium speed In case of increase in room temperature T1 In case of decrease of room tempera...

Page 396: ... control T1 Ts C 1 0 2 0 3 0 High speed Low speed Medium speed Conditions Operation status of compressor ON OFF Reduction of operation frequency T2 48 C 53 C T2 63 C T2 63 C T2 Temperature of Indoor Unit s heat exchanger HKEU X Models Conditions Operation status of compressor ON OFF Reduction of operation frequency T2 54 C 54 C T2 63 C T2 63 C T2 Temperature of Indoor Unit s heat exchanger HFIU X ...

Page 397: ... Unit is controlled when anticold air drafts prevention control is active as it has previously described 5 11 Operation in Auto mode AUTO 5 11 1 Concerning Auto mode control electronics automatically selects the most suitable operation mode by choosing among COOL HEAT or FAN according to the difference between temperature T1 inside the room and temperature Ts set by the User as it is shown in the ...

Page 398: ...en operation will go on in AUTO Automatic mode with temperature set to 24 C Note 1 Do not use Test mode for normal operation of Air Conditioner 5 12 3 End of Emergency or Test operation of air conditioner Press AUTO COOL button twice during Emergency Operation or press it once during Test mode operation of system will be stopped OFF Note 2 It is sufficient to use IR Remote Control at any moment to...

Page 399: ...any moment to restore normal operation of system rHFIU X Models MANUAL button 5 12 7 Emergency Operation in AUTO mode If Remote Control is not available or batteries are exhausted it is possible to operate the air conditioner by pressing MANUAL button once when system is OFF In this way Emergency operation in AUTO Automatic mode will be started and the air conditioner will operate in the most suit...

Page 400: ... is not available or batteries are exhausted it is possible to use air conditioner by pressing MANUAL button once when system is OFF In this way Emergency operation in AUTO Automatic mode will be started and the air conditioner will operate in the most suitable mode according to room temperature conditions with temperature set to 24 C 5 12 14 Test of air conditioner in Cooling mode COOL When syste...

Page 401: ... by 10 minute steps 5 13 8 Programmed settings occur on the basis of a real time clock that displays current time Therefore first of all it is absolutely necessary to set current time before carrying out Timer settings 5 13 9 TIMER ON function When system is OFF it will be restarted ON as soon as programmed set time is reached 5 13 10 TIMER OFF function When system is ON it will be stopped OFF as ...

Page 402: ...hours setting is made by 60 minute steps 5 13 20 Programmed settings occur on the basis of a real time clock that displays current time Therefore first of all it is absolutely necessary to set current time before carrying out Timer settings 5 13 21 TIMER ON function When system is OFF it will be restarted ON as soon as programmed set time is reached 5 13 22 TIMER OFF function When system is ON it ...

Page 403: ...modifiable duration of 7 hours at the end of which Sleep function will be automatically deactivated If you desire to deactivate SLEEP function in advance it will be sufficient to press SLEEP button on remote control while SLEEP function is active 5 14 6 If SLEEP function and TIMER OFF operation overlap the remaining time of SLEEP function will be cancelled at the end of TIMER OFF operation Indoor ...

Page 404: ... Cooling and Heating mode of Indoor Units connected to the same Outdoor Unit is not allowed Heating mode has always the priority over the other operation modes 5 18 2 The Table on the following page shows survey of compatible operation modes YES indication on the Table for Indoor Units which are connected to the same Outdoor Unit the Table also shows not compatbile operation modes NO indication fo...

Page 405: ...d operation in Heating mode is selected on at least one Indoor Unit of the same system the Indoor Unit operating in Cooling or Fan mode will get to stand by status System s Outdoor Unit will start opeating in Heating mode as Heating mode has always the priority over the other operation modes b However if all Indoor Units operating in Heating mode are stopped OFF the system s Indoor Unit s in stand...

Page 406: ...erter 5 20 Troubleshooting functions of system s malfunctions 5 20 1 The codified indications referred to malfunctions or to protection functions interventions of Indoor and Outdoor Units of each system are shown in Section 3 Outdoor Units Troubleshooting of this Service Manual ...

Page 407: ...Notes 1 DUAL TRIPLE POKER DC Inverter Notes Multi Liberty DC Inverter Notes ...

Page 408: ...Notes 2 DUAL TRIPLE POKER DC Inverter Notes Multi Liberty DC Inverter Notes ...

Page 409: ...Notes 3 DUAL TRIPLE POKER DC Inverter Notes Multi Liberty DC Inverter Notes ...

Page 410: ...Products by Manufacturer we reserve the right to vary the technical specifications at any time without notice HOKKAIDO SRL 14 Via della Salute 40132 Bologna Italy Tel 39 051 41 33 111 Fax 39 051 41 33 146 www hokkaido it Multi Liberty DC Inverter ...

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