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12-5

CONTROL SYSTEM

Revision Y06-01

Service Manual - LEX

12.4.6.2

Cases for disabling thermistor short/disconnected detection

i. The detection of thermistor faults (a) and (b) above, are disabled when Deicer

Protection is started. The detection will be enabled again only after (1) the
deicing is completed, and (2) COMP has been restarted and operated for 30
sec.

ii. When all the following conditions are fulﬁlled:

a.

4.7K Ohm resistor is connected on the OCT

b.

IFAN is OFF

c. Compressor

is

ON

d.

ICT < -30 (disconnected)

This condition come to detect and prevent IFAN operation in Deicer in multi spilt
units.

12.4.6.3

Handling the thermistor faults in a COMP unit

i.

ICT/OCT thermistor is disconnected or shorted -

The invalid thermistor temperature is replaced by 43

o

c, so that the unit

can continue the normal operation. All protections related to that faulty
thermistor will be disabled. For example, in case of any ICT fault, the ICT
high pressure protection in Heat Mode and ICT defrost protection in Cool
Mode will not operate anymore. The same is also applied to the OCT fault.

ii.

RAT thermistor is disconnected or shorted –

The RAT will be derived from the ICT by using the equations :

Heat

Mode:

RAT=ICT/2.3

Cool

Mode

RAT=ICT*4

Notes:

•

In case of any thermistor failure, the STBY LED will be blinking until the
fault condition is corrected.

•

User can use the system diagnostics function to ﬁnd out the nature of
the thermistor faults.

i.

RAT thermistor is disconnected or shorted –

System will operate continuously in the last IFAN & WVL status when
turned ON.

Notes:

•

As in the COMP unit, the STBY LED will be blinking to indicate a
thermistor fault. And, the user can use the system diagnostics function
to ﬁnd out the nature of the fault.

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Содержание LEX 12

Страница 1: ...Service Manual LEX Series REFRIGERANT R410A COOLING ONLY HEAT PUMP JANUARY 2006 Indoor Units Outdoor Units LEX 7 ONG 7 LEX 9 ONG 9 LEX 12 ONG 12 LEX 14 ONG 14 ...

Страница 2: ...inal and changed pages are Original 0 January 2006 Total number of pages in this publication is 92 consisting of the following Page No Revision No Page No Revision No Page No Revision No Title 0 A 0 i 0 1 1 1 4 0 2 1 2 4 0 3 1 0 4 1 0 5 1 5 16 0 6 1 6 2 0 7 1 0 8 1 8 2 0 9 1 0 10 1 10 2 0 11 1 0 12 1 12 33 0 13 1 13 2 0 14 1 14 15 0 15 1 15 3 0 Appendix A 0 Zero in this column indicates an origina...

Страница 3: ...ENSIONS 4 1 5 PERFORMANCE DATA PRESSURE CURVES 5 1 6 SOUND LEVEL CHARACTERISTICS 6 1 7 ELECTRICAL DATA 7 1 8 WIRING DIAGRAMS 8 1 9 ELECTRICAL CONNECTIONS 9 1 10 REFRIGERATION DIAGRAMS 10 1 11 TUBING CONNECTIONS 11 1 12 CONTROL SYSTEM 12 1 13 TROUBLESHOOTING 13 1 14 EXPLODED VIEWS AND SPARE PARTS LISTS 14 1 15 OPTIONAL ACCESSORIES 15 1 16 APPENDIX A 16 1 ...

Страница 4: ...m the most advanced technological innovations namely R410A models Microprocessor control Infrared remote control with liquid crystal display Supports Indoor Air Quality features such as Ionizer Active Electro Static Filter and Fresh Air Indoor large diameter cross ﬂow fan allowing low noise level operation Bended indoor coil with treated aluminum ﬁns and coating for improved efﬁciency High COP Eas...

Страница 5: ... presents several types of air ﬁlters Easily accessible and re usable pre ﬁlters mesh Pre charged electrostatic ﬁlter disposable Active carbon ﬁlter disposable ESF Active Electro Static re usable ﬁlter optional 1 5 Ionizer Optional A special design Ionizer protected by unique patents integrated into the indoor unit generating negative ions to the room providing comfort and upgraded indoor air qual...

Страница 6: ...ype interconnecting tubing to be produced on site For further details please refer to the Installation Manual APPENDIX A S 1 9 Accessories ASK All Season Kit For low ambient working conditions in cooling an ASK can be installed inside the outdoor unit This kit allows cooling operation down to outdoor temp of 10 ºC by gradually controlling the outdoor fan speed motor RCW Wall Mounted Remote Control...

Страница 7: ... ONG14 ST R410A ONG7 RC R410A ONG9 RC R410A ONG12 RC R410A ONG14 RC R410A The outdoor unit of this combination cannot be matched to other indoor units The above table lists outdoor units and LEX indoor units which can be matched together In addition the listed outdoor units can be matched with other types of indoor units such as cassettes ﬂoor ceiling For further information please refer to the re...

Страница 8: ...nections between units OUTDOOR Capacity 4 Power input 4 Air flow Fan speeds Fan type quantity Compressor type model Refrigerant control A 7400 2 12 2 17 0 63 0 595 A 3 37 7230 9 945x395x655 45 41 39 30 27 25 0 7 16 810x210x285 48 795x290x610 11 60 0 380 320 280 860 760 660 870x285x355 13 5 36 680 Package dimensions 32 1 4 6 35 9 levels 3 levels R410A Capillary tube with 026 restrictor Propeller di...

Страница 9: ...pe model Refrigerant control B 9890 2 72 2 90 0 825 0 849 A 3 30 9280 960 860 760 9 945x395x655 49 46 44 35 31 28 0 9 16 810x210x285 11 870x285x355 1 4 6 35 9 levels 3 levels R410A Capillary tube with 029 restrictor Propeller direct x 1 Rotary Hitachi ASG108CV B7AT 780 39 1 03 3 8 9 53 Max 15 Max 7 Model Indoor Unit Model Outdoor Unit Installation Method of Pipe Dimensions Sound pressure level 3 P...

Страница 10: ...550 450 1230 1080 930 9 945x395x655 55 53 49 43 39 35 1 3 16 810x210x285 1 4 6 35 9 levels 3 levels R410A Capillary tube Propeller direct x 1 Rotary RN 145 VHSMT 1850 1 13 4m L 10m 0g 10m L 15m 50g Model Indoor Unit Model Outdoor Unit Installation Method of Pipe Dimensions Sound pressure level 3 Sound power level INDOOR OUTDOOR Capacity 4 Power input 4 Characteristics EER Cooling or COP Heating 4 ...

Страница 11: ...ube I D Air flow 1 1280 1080 930 Others Refrigerant type Liquid line Suction line Max tubing length Max height difference Refrigerant chargless distance Additional charge Operation control type Units per pallet Packaged weight Connections between units Heating elements Option 42 2 1 4 6 35 Characteristics EER Cooling or COP Heating 4 Weight INDOOR Fan type quantity Sound pressure level 3 Moisture ...

Страница 12: ... and EN 14511 Cooling Indoor 27o C DB 19o C WB Outdoor 35 o C DB Heating Indoor 20o C DB Outdoor 7o C DB 6o C WB 3 1 Operating Limits 3 1 1 R410A Indoor Outdoor Cooling Upper limit 32o C DB 23o C WB 46o C DB Lower limit 21o C DB 15o C WB 10o C DB Heating Upper limit 27o C DB 24o C DB 18o C WB Lower limit 10o C DB 9o C DB 10o C WB Voltage 1PH 198 264 V ...

Страница 13: ...4 1 OUTLINE DIMENSIONS Revision Y06 01 Service Manual LEX 4 OUTLINE DIMENSIONS 4 1 LEX 7 9 12 14 ONG3 7 9 12 14 ...

Страница 14: ...DB ID Coil o C 15 21 17 24 19 27 21 29 23 32 TC 2 23 2 31 2 37 2 42 2 46 15 1 SC 1 59 1 65 1 72 1 76 1 79 PI 0 45 0 45 0 45 0 45 0 45 TC 2 16 2 28 2 35 2 41 2 46 20 1 SC 1 55 1 64 1 71 1 76 1 79 PI 0 49 0 49 0 49 0 49 0 49 TC 2 05 2 21 2 32 2 39 2 45 25 SC 1 52 1 61 1 70 1 74 1 78 PI 0 52 0 53 0 53 0 53 0 54 TC 1 91 2 08 2 25 2 33 2 40 30 SC 1 47 1 56 1 66 1 71 1 74 PI 0 57 0 57 0 58 0 58 0 59 TC ...

Страница 15: ...m 15m 20m 25m 30m 40m 50m 1 02 1 0 961 0 949 Minimum recommended tubing length between indoor and outdoor units is 3m 5 2 2 Heating TOTAL TUBING LENGTH One Way 3m 7 5m 10m 15m 20m 25m 30m 40m 50m 1 05 1 0 975 0 965 Minimum recommended tubing length between indoor and outdoor units is 3m 15 20 25 ENTERING WB OD COIL o C TH Pl TH Pl TH Pl 10 1 13 0 48 1 09 0 51 1 04 0 53 7 1 21 0 49 1 17 0 51 1 13 0...

Страница 16: ...0 13 0 14 0 15 20 25 30 35 40 46 Outdoor Temp DB o C Suction Pressure Bar g 15 21 WB DB ºC 17 24 WB DB ºC 19 27 WB DB ºC 21 29 WB DB ºC 23 32 WB DB ºC Discharge Pressure VS Outdoor Temp 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 15 20 25 30 35 40 46 Outdoor Temp DB o C Discharge Pressure Bar g 15 21 WB DB ºC 17 24 WB DB ºC 19 27 WB DB ºC 21 29 WB DB ºC 23 32 WB DB ºC ...

Страница 17: ...16 18 20 22 24 26 28 30 32 34 36 38 40 15 20 25 30 35 40 46 Outdoor Temp DB o C Discharge Pressure Bar g 15 21 WB DB ºC 17 24 WB DB ºC 19 27 WB DB ºC 21 29 WB DB ºC 23 32 WB DB ºC Discharge Pressure VS Outdoor Temp 16 18 20 22 24 26 28 30 32 10 5 0 5 10 15 20 Outdoor Temp WB o C Discharge Pressure Bar g 25 DB ºC 20 DB ºC 15 DB ºC ...

Страница 18: ... 21 17 24 19 27 21 29 23 32 TC 2 87 2 97 3 04 3 11 3 16 15 1 SC 1 93 2 01 2 09 2 14 2 18 PI 0 58 0 59 0 59 0 59 0 59 TC 2 77 2 92 3 02 3 09 3 15 20 1 SC 1 89 1 99 2 08 2 14 2 18 PI 0 64 0 64 0 64 0 64 0 64 TC 2 62 2 83 2 98 3 07 3 14 25 SC 1 84 1 95 2 06 2 12 2 16 PI 0 69 0 69 0 70 0 70 0 70 TC 2 45 2 67 2 89 2 99 3 08 30 SC 1 78 1 90 2 02 2 08 2 11 PI 0 74 0 75 0 76 0 76 0 77 TC 2 27 2 47 2 72 2 ...

Страница 19: ...m 15m 20m 25m 30m 40m 50m 1 02 1 0 961 0 950 Minimum recommended tubing length between indoor and outdoor units is 3m 5 5 2 Heating TOTAL TUBING LENGTH One Way 3m 7 5m 10m 15m 20m 25m 30m 40m 50m 1 05 1 0 975 0 961 Minimum recommended tubing length between indoor and outdoor units is 3m 15 20 25 ENTERING WB OD COIL o C TH Pl TH Pl TH Pl 10 1 52 0 68 1 46 0 72 1 41 0 76 7 1 64 0 70 1 58 0 73 1 52 0...

Страница 20: ...0 13 0 14 0 15 20 25 30 35 40 46 Outdoor Temp DB o C Suction Pressure Bar g 15 21 WB DB ºC 17 24 WB DB ºC 19 27 WB DB ºC 21 29 WB DB ºC 23 32 WB DB ºC Discharge Pressure VS Outdoor Temp 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 15 20 25 30 35 40 46 Outdoor Temp DB o C Discharge Pressure Bar g 15 21 WB DB ºC 17 24 WB DB ºC 19 27 WB DB ºC 21 29 WB DB ºC 23 32 WB DB ºC ...

Страница 21: ...VS Outdoor Temp 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 10 5 0 5 10 15 20 Outdoor Temp WB o C Suction Pressure Bar g 15 DB ºC 20 DB ºC 25 DB ºC Discharge Pressure VS Outdoor Temp 16 18 20 22 24 26 28 30 32 34 36 10 5 0 5 10 15 20 Outdoor Temp WB o C Discharge Pressure Bar g 25 DB ºC 20 DB ºC 15 DB ºC ...

Страница 22: ...5 21 17 24 19 27 21 29 23 32 TC 3 77 3 91 4 00 4 10 4 16 15 1 SC 2 57 2 68 2 78 2 85 2 90 PI 0 79 0 79 0 79 0 79 0 80 TC 3 65 3 85 3 97 4 06 4 15 20 1 SC 2 51 2 65 2 76 2 84 2 89 PI 0 86 0 86 0 86 0 87 0 87 TC 3 45 3 73 3 92 4 04 4 14 25 SC 2 45 2 60 2 74 2 82 2 87 PI 0 92 0 93 0 94 0 94 0 95 TC 3 23 3 52 3 80 3 93 4 05 30 SC 2 37 2 52 2 68 2 76 2 81 PI 1 00 1 01 1 02 1 03 1 04 TC 2 99 3 25 3 58 3...

Страница 23: ...m 15m 20m 25m 30m 40m 50m 1 02 1 0 961 0 948 Minimum recommended tubing length between indoor and outdoor units is 3m 5 8 2 Heating TOTAL TUBING LENGTH One Way 3m 7 5m 10m 15m 20m 25m 30m 40m 50m 1 05 1 0 975 0 963 Minimum recommended tubing length between indoor and outdoor units is 3m 15 20 25 ENTERING WB OD COIL o C TH Pl TH Pl TH Pl 10 2 18 0 92 2 10 0 98 2 01 1 02 7 2 34 0 94 2 26 0 99 2 18 1...

Страница 24: ...0 13 0 14 0 15 20 25 30 35 40 46 Outdoor Temp DB o C Suction Pressure Bar g 15 21 WB DB ºC 17 24 WB DB ºC 19 27 WB DB ºC 21 29 WB DB ºC 23 32 WB DB ºC Discharge Pressure VS Outdoor Temp 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 15 20 25 30 35 40 46 Outdoor Temp DB o C Discharge Pressure Bar g 15 21 WB DB ºC 17 24 WB DB ºC 19 27 WB DB ºC 21 29 WB DB ºC 23 32 WB DB ºC ...

Страница 25: ...e VS Outdoor Temp 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 10 5 0 5 10 15 20 Outdoor Temp WB o C Suction Pressure Bar g 15 DB ºC 20 DB ºC 25 DB ºC Discharge Pressure VS Outdoor Temp 16 18 20 22 24 26 28 30 32 34 36 38 10 5 0 5 10 15 20 Outdoor Temp WB o C Discharge Pressure Bar g 25 DB ºC 20 DB ºC 15 DB ºC ...

Страница 26: ...15 21 17 24 19 27 21 29 23 32 TC 4 45 4 61 4 72 4 83 4 90 15 1 SC 2 89 3 01 3 13 3 21 3 27 PI 0 93 0 93 0 93 0 93 0 94 TC 4 30 4 54 4 68 4 79 4 89 20 1 SC 2 83 2 98 3 11 3 20 3 26 PI 1 01 1 01 1 02 1 02 1 02 TC 4 07 4 40 4 62 4 76 4 88 25 SC 2 76 2 93 3 09 3 18 3 23 PI 1 09 1 10 1 10 1 11 1 12 TC 3 81 4 15 4 48 4 64 4 78 30 SC 2 67 2 84 3 02 3 11 3 17 PI 1 18 1 19 1 20 1 21 1 22 TC 3 53 3 83 4 22 ...

Страница 27: ...0m 15m 20m 25m 30m 40m 50m 1 02 1 0 984 0 946 Minimum recommended tubing length between indoor and outdoor units is 3m 5 11 2 Heating TOTAL TUBING LENGTH One Way 3m 7 5m 10m 15m 20m 25m 30m 40m 50m 1 03 1 0 995 0 971 Minimum recommended tubing length between indoor and outdoor units is 3m 15 20 25 ENTERING WB OD COIL o C TH Pl TH Pl TH Pl 10 2 31 0 90 2 22 0 96 2 13 1 01 7 2 49 0 93 2 40 0 98 2 31...

Страница 28: ... 0 13 0 14 0 15 20 25 30 35 40 46 Outdoor Temp DB o C Suction Pressure Bar g 15 21 WB DB ºC 17 24 WB DB ºC 19 27 WB DB ºC 21 29 WB DB ºC 23 32 WB DB ºC Discharge Pressure VS Outdoor Temp 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 15 20 25 30 35 40 46 Outdoor Temp DB o C Discharge Pressure Bar g 15 21 WB DB ºC 17 24 WB DB ºC 19 27 WB DB ºC 21 29 WB DB ºC 23 32 WB DB ºC ...

Страница 29: ...e VS Outdoor Temp 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 10 5 0 5 10 15 20 Outdoor Temp WB o C Suction Pressure Bar g 15 DB ºC 20 DB ºC 25 DB ºC Discharge Pressure VS Outdoor Temp 16 18 20 22 24 26 28 30 32 34 36 38 10 5 0 5 10 15 20 Outdoor Temp WB o C Discharge Pressure Bar g 25 DB ºC 20 DB ºC 15 DB ºC ...

Страница 30: ...vision Y06 01 Service Manual LEX 6 SOUND LEVEL CHARACTERISTICS 6 1 Sound Pressure Level 6 2 Sound Pressure Level Spectrum Measured as Figure 1 FAN SPEED LINE HI ME LO 1m 0 8m Mic Unit Wall LEX 12 RC LEX 14 RC LEX 7 RC LEX 9 RC Figure 1 ...

Страница 31: ...HARACTERISTICS Revision Y06 01 Service Manual LEX 6 3 Outdoor units 6 4 Sound Pressure Level Spectrum Measured as Figure 2 ONG 7 RC Cooling ONG 7 RC Heating ONG 9 RC Cooling ONG 9 RC Heating 1m Mic Unit Ground Figure 2 ...

Страница 32: ...6 3 SOUND LEVEL CHARACTERISTICS Revision Y06 01 Service Manual LEX ONG 12 RC Cooling ONG 12 RC Heating ONG 14 RC Cooling ONG 14 RC Heating ...

Страница 33: ...erconnecting Cable ST Model No x Cross Section mm2 4 x 1 0 mm2 5 x 1 0 mm2 4 x 1 0 mm2 5 x 1 0 mm2 MODEL LEX 12 LEX 14 Power Supply To indoor To outdoor To indoor To outdoor 1PH 230V 50Hz 1PH 230V 50Hz Max Current A 8 2 9 5 Circuit Breaker A 15 0 15 0 Power Supply Wiring No x Cross Section mm2 3 x 1 5 mm2 3 x 1 5 mm2 Interconnecting Cable RC Model No x Cross Section mm2 5 x 1 5 mm2 2 x 0 5 mm2 OCT...

Страница 34: ...8 1 WIRING DIAGRAMS Revision Y06 01 Service Manual LEX 8 WIRING DIAGRAMS NOTE Wiring diagram lables as shown on units 8 1 Indoor Unit LEX 7 9 12 14 fully feature 8 1 1 Indoor Unit LEX 7 9 12 14 basic ...

Страница 35: ...8 2 WIRING DIAGRAMS Revision Y06 01 Service Manual LEX 8 2 Outdoor Unit ONG7 RC R410A 8 3 Outdoor Unit ONG7ST 9ST RC 12ST RC 14ST RC R410A ...

Страница 36: ...9 1 ELECTRICAL CONNECTIONS Revision Y06 01 Service Manual LEX 9 ELECTRICAL CONNECTIONS 9 1 LEX 7 9 12 14 R410A ...

Страница 37: ...10 1 REFRIGERATION DIAGRAMS Revision Y06 01 Service Manual LEX 10 REFRIGERATION DIAGRAMS 10 1 Heat Pump Models 10 1 1 LEX 7 R410A ...

Страница 38: ...10 2 REFRIGERATION DIAGRAMS Revision Y06 01 Service Manual LEX 10 1 2 LEX 9 12 14 R410A ...

Страница 39: ...11 13 11 13 1 Valve Protection Cap end 2 Refrigerant Valve Port use Allen wrench to open close 3 Valve Protection Cap 4 Refrigerant Valve 5 Service Port Cap 6 Flare Nut 7 Unit Back Side 8 Copper Tube When the outdoor unit is installed above the indoor unit an oil trap is required every 5m along the suction line at the lowest point of the riser Incase the indoor unit is installed above the outdoor ...

Страница 40: ...ormation is designed for service applications and is common to the following groups of air conditioners ST RC group Cooling only cooling and heating by heat pump SH group Cooling and heating by heat pump and supplementary heater RH group Cooling heating by heaters only 12 1 2 Jumpers Settings GROUP J6 Setting J2 Setting ST RC Open Open SH Closed Open RH Closed Closed ...

Страница 41: ... Medium High Water Level LEVEL4 Overﬂow Level Max Maximum Min Minimum min Minute time NA Not Applicable OCP Outdoor Condensation Pump OCT Outdoor Coil Temperature RT3 sensor OF OFAN Outdoor Fan OPER Operate Para Paragraph RAT Return Air Temperature RT1 sensor RC Reverse Cycle Heat Pump R C Remote Control RCT Remote Control Temperature RH Resistance Heater RT Room Temperature i e RCT in IFEEL mode ...

Страница 42: ...erval between IFAN speed change in H M L Mode is 1 sec IFAN speed in Heat Cool Autofan Mode is determined according to the following table ΔT IFAN Speed ΔT 2 HIGH 2 ΔT 1 MED 1 ΔT LOW where in Heat Mode ΔT SPT RT in Cool Mode ΔT RT SPT Note In Heat Mode the rules in section 4 0 3 have the higher priority The table above can be represent by a hysteresis curve which will minimize the switching of the...

Страница 43: ... below 30o c b Thermistor is shorted The thermistor reading is over 75o c c Thermistor Temp reading doesn t change irrelevant for RT1 i This test is performed only once after a unit is switched from OFF STBY to operation At the ﬁrst occurrence of 10 min continuous COMP operation the current ICT OCT are compared with those when the COMP was switched from OFF to ON 10 min before If the ΔT is less th...

Страница 44: ...o that the unit can continue the normal operation All protections related to that faulty thermistor will be disabled For example in case of any ICT fault the ICT high pressure protection in Heat Mode and ICT defrost protection in Cool Mode will not operate anymore The same is also applied to the OCT fault ii RAT thermistor is disconnected or shorted The RAT will be derived from the ICT by using th...

Страница 45: ...The resolution of RT is 1o c RT is activating COMP WVL if RT SPT and RT is stopping COMP WVL if RT SPT 3 Indoor Coil Temp is detected by ICT RT2 4 Outdoor Coil Temp is detected by OCT RT3 5 A WVL RC SH will work in Cooling Mode when ICT 16o c in general see Sect 2 2 2 for details and Unit is not operating in Fan Mode 6 OFAN OPERATIONS OFAN starts together with COMP in general ...

Страница 46: ...eel On or Off Control function Maintains room temp at desired level by comparing RT and SPT RT SPT o c 3 2 1 0 1 2 ON OFF ON OFF USER FAN SPEED ON OFF COMP WVL OFAN IFAN RV Note 1 IFAN is always running at High Medium or Low speed selected by user 2 In IFEEL mode the Room Temperature RT is the RCT from a R C Otherwise the RT is the RAT from the Room Thermistor ...

Страница 47: ...Autofan Mode Cool Auto at cooling Temp Selected desired temperature Fan Auto Timer Any I Feel On or Off Control function Maintains room temp at desired level and controls the IFAN speed for optimal comfort RT SPT o c 3 2 1 0 1 2 ON OFF ON OFF H L M ON OFF COMP WVL OFAN IFAN RV ...

Страница 48: ... COMP is switched ON In this case the IFAN will be started at low speed Notes 1 In SH or RC group if HE is set to OFF due to low ICT IFAN will be switched to LOW and will be turned OFF after 30 sec 2 An exception to this rule 4 0 3 a is the Back up mode for SH In RC and SH groups whenever COMP HE are both OFF excluding protection modes IFAN operation will be according to the following In other mod...

Страница 49: ...ICT 45o c In SH or RC group HE operation is limited by the following graph Back up mode for SH group After COMP has been working for 5 minutes HE IFAN are activated even if the ICT is still below 35o c This situation is called Back up Mode Both HE IFAN will work in Back up Mode until the ICT reaches 35o c Then the operation goes on in the usual mode HE ON OFF 30 45 50 ICT oc 15 General For WAX 35 ...

Страница 50: ...ode Heat Auto at heating Temp Selected desired temperature Fan HIGH MED LOW Timer Any I Feel On or Off Control function Maintains room temp at desired level by comparing RAT or RCT to SPT RT SPT o c 2 1 0 1 2 3 ON OFF ON OFF H M L OFF L ON OFF Note 1 Note 2 COMP WVL HE1 HE2 IFAN ON OFF RV ...

Страница 51: ... Autofan Mode Heat Auto at heating Temp Selected desired temperature Fan Auto Timer Any I Feel On or Off Control function Maintains room temp at desired level by controlling COMP IFAN and OFAN RT SPT o c 2 1 0 1 2 3 ON OFF ON OFF H OFF L M ON OFF Note 1 Note 2 COMP WVL HE1 HE2 IFAN RV ON OFF ...

Страница 52: ...YSTEM Revision Y06 01 Service Manual LEX 12 6 6 OFAN operation is controlled by the graph below when 1 RAT SPT 2o c AND 2 ICT 45o c AND 3 COMP is ON Otherwise OFAN runs together with COMP OCT o c 3 2 1 0 1 OFAN ON OFF ...

Страница 53: ... at low speed The proper Auto Heat mode or Auto Cool will be started whenever the RT reaches SPT 1o c or SPT 1o c respectively For RC SH units Mode change between Auto Heat Auto Cool Modes is possible only after the COMP has been OFF during the last T minutes Mode Change time T Auto Cool to Auto Heat 3 min Auto Heat to Auto Cool 4 min When unit is changed form Cool Dry mode to Auto Mode the unit w...

Страница 54: ...Any Timer Any I Feel On or Off Control function Maintains room temp at desired level by selecting between cooling and heating modes RT SPT o c 3 2 1 0 1 2 3 ON OFF ON OFF H M L OFF L OFF ON OFF ON OFF COMP OFAN HE1 HE2 IFAN RV H M L OFF L OFF USER FAN SPEED H M L OFF L OFF Auto Cool Mode Auto Heat Mode 4 min 3 min 3 min 2 min 3 3 4 4 5 Auto Heat Mode ...

Страница 55: ...ery 15 min of continuous COMP operation When Dry is OFF the COMP is forced ON for 6 min longer than the 3 min Min COMP On time after every 15 min of continuous COMP OFF time When Dry is changed from ON to OFF or vice versa the limits mentioned in 1 2 are ignored The COMP operation is only controlled by the 3 min Min OFF time and 1 min Min ON time In Dry Mode IFAN is LOW when COMP is ON and is OFF ...

Страница 56: ...OFAN stop for 10 min minimum Notes When J7 is closed connected OFAN cycling is cancelled and the set temperature for COMP OFAN cut out and cut in are changed COMP OFAN are forced OFF when ICT 6o c and are kept OFF until ICT 14o c For WAX model the defrost processes is simpler When J7 is open COMP OFAN are forced OFF when ICT 1o c and are kept OFF until ICT 5o c When J7 is closed the WAX defrosting...

Страница 57: ...N IFAN OPER LED 52 55 61 66 L COMP is forced OFF OFAN is forced ON IFAN forced to LOW 68 OFAN follow operation of COMP COMP is forced OFF OFAN is forced ON For all models except WAX P2000 For WAX P2000 models Note The ICT is also monitored during Cool and Dry mode in case the RV control circuit is faulty Whenever ICT reaches 70o c which indicates a high pressure in the indoor coil the COMP will be...

Страница 58: ...ng COMP RV operation Scope This new deicer is designed to operate at extreme temp conditions The deicing cycle could be triggered from 1 OCT temp and time between two consecutive deicing cycles 2 Detection of ice forming by change of the OCT temp Both algorithms adjust the time between deicing cycles to optimize the A C performance The algorithm will automatically increase the time between deicing...

Страница 59: ... Low Speed BLINK ON OPER LED Notes At the ﬁrst COMP activation after SB or OFF if OCT 0o c then DI 10 min else DI 40 min In the following Deicing cycles the time interval between two Deicing cycles activation is between 30 to 80 min refer to the ﬂow chart For RC group HEs are forced OFF IFAN operation is as in Heat Mode Sect 4 0 3 a i e IFAN will be set to OFF when ICT 30o c For WAX the IFAN is si...

Страница 60: ... force Off COMP is forced OFF For all models except WAX For WAX model ON BLINK OPER LED Notes IFAN HE1 and HE2 will be activated according to the relevant Heating Mode Sect In case of any malfunction in the relay control circuit the OCT is also monitored during heating mode Whenever OCT reaches 70o c which indicates a high pressure in the outdoor coil the COMP will be forced off automatically The ...

Страница 61: ...ndicator is blinked to indicate the situation The LED keeps blinking until the timer settings can be reloaded from a R C message Note If all timers are inactive the system will not be forced OFF after the power failure The last OPER STBY status will be loaded from the EEP instead When the A C receives any valid message from a R C the current ON OFF timer settings will be replaced by the new timer ...

Страница 62: ...re according to the following table Forced operation mode Pre set Temp for WMF WMN WNG models Cooling 22 C Heating 28 C Note While under the forced operation the temperature compensation schedule The forced operation is activated when the mode button on the Display Board is used to switch the unit to Cool or Heat mode The IFAN is always set to Autofan Speed in forced operation ...

Страница 63: ...ER function Therefore the TIMER LED is activated similar to TIMER function 12 12 1 Adjustment in Sleep Mode 1 in cool auto cool or dry modes the SPT adjustment is positive from 0 to 3o c 2 In heat or auto heat modes the SPT adjustment is negative from 0 to 3o c 3 In other modes there is no SPT adjustment 4 The SPT adjustment is cancelled when the Sleep mode is cancelled Note If Off timer is active...

Страница 64: ...to the starting of Sleep the Sleep time is extended And instead of going to SB at the 7th hour the A C will work until reaching the Off time Case 3 is an exception to case 2 The Sleep Mode will not be extended to the Off Time when the Off Timer is preceded by an On Timer which is also between 7 12 hour Oper Time Hr 4 8 10 12 2 6 Start Sleep 7 Case 1 Standard Sleep Mode Condition Off timer is not s...

Страница 65: ...12 26 CONTROL SYSTEM Revision Y06 01 Service Manual LEX 12 13 Clogged Air Filter Filter LED ON after 512 HR Filter LED is turned OFF and the Filter Timer is restarted by pressing the reset button ...

Страница 66: ...E BUTTON INDOOR FAN SPEED TEST SELF TEST FLOW CHART Step 1 Step 2 Step 3 FOR CONTROLLER VERSION 4V5 OR HIGHER COOL HEAT COMPRESSOR OUTDOOR FAN R V LOW MEDIUM HIGH TIMER OPERATE STANDBY BUZZER TEST ONE BEEP SOUND REMOTE CONTROL TO CPU COMUNICATION TWO BEEPS SOUNDS THERMISTOR ANALOG VOLTAGE CHECKING EEPROM MEMORY TEST END OF SELF TEST PRESS ON RESET BUTTON PRESS ON FAN BUTTON ON THE REMOTE CONTROL P...

Страница 67: ...mode LOW IFAN no I FEEL Sleep or any other timer settings Uncover the remote control IR transmitter and change the temperature settings If the display indoor unit receive the settings properly the following steps will start c STEP 3 MODEL SETTING CONFIRMATION The STAND BY and COOL LEDS will indicate the operation mode as follows OPERATION MODE STAND BY LED COOL LED ST ON OFF RC OFF OFF SH OFF ON R...

Страница 68: ...automatically f STEP 6 FREQUENCY TESTING If the frequency measuring process fails the COOL LED will turn ON In order to move to the next step press ON OFF button on the remote control g STEP 7 INPUT TEST The test purpose is to check the analog real time indicators thermistors LEVEL and clock according to the table below LED Indicator Condition for LED to be ON STBY LED Room thermistor 25 c OPER LE...

Страница 69: ...for 60 sec Values of Sensors Temperature VS Voltage DC Temp C Voltage V Temp C Voltage V Temp C Voltage V Temp C Voltage V 20 4 554 2 3 744 24 2 555 46 1 487 19 4 529 3 3 695 25 2 5 47 1 447 18 4 502 4 3 646 26 2 445 48 1 409 17 4 475 5 3 595 27 2 391 49 1 371 16 4 446 6 3 544 28 2 338 50 1 334 15 4 417 7 3 492 29 2 284 51 1 298 14 4 386 8 3 439 30 2 232 52 1 263 13 4 354 9 3 386 31 2 18 53 1 228 ...

Страница 70: ...aned Blinks during Water Over Flow in MBX P2000 models COOLING INDICATOR Lights up when system is switched to Cool Mode by using the Mode Switch on the unit Show the thermistor status in Diagnostic Mode HEATING INDICATOR Lights up when system is switched Heat Mode by using the Mode Switch on the unit Show the thermistor status in Diagnostic Mode MODE BUTTON Cool Heat SB Use to cycle the operation ...

Страница 71: ... A C STATE before clock is changed CLOCK STATE before clock is changed CLOCK ACTION clock is changed A C NEW STATE after clock is changed ON 1 0 OFF OFF 0 1 ON OFF by interrupt 1 1 0 OFF ON by interrupt 1 0 1 ON Notes 1 Clock can be interrupted by R C POWER ON OFF Push button R C TIMER R C SLEEP A C MODE SWITCH 2 Any change in the CLOCK level during the ﬁrst 6 sec after the system Reset is ignored...

Страница 72: ... ż 1 RT1 is disconnected ż Ɣ Ɣ Ɣ Ɣ 2 RT1 is shorted ż Ɣ Ɣ Ɣ ż 3 Reserved ż Ɣ Ɣ ż Ɣ 4 RT2 is disconnected Ɣ ż Ɣ Ɣ Ɣ 5 RT2 is shorted Ɣ ż Ɣ Ɣ ż 6 Reserved Ɣ ż Ɣ ż Ɣ 7 RT2 temp reading doesn t change Ɣ ż Ɣ ż ż 8 RT3 is disconnected Ɣ Ɣ ż Ɣ Ɣ 9 RT3 is shorted Ɣ Ɣ ż Ɣ ż 10 Reserved Ɣ Ɣ ż ż Ɣ 11 RT3 temp reading doesn t change Ɣ Ɣ ż ż ż 12 RT2 RT3 temp reading doesn t change Ɣ ż ż ż ż ż ON Ɣ OFF Notes 1...

Страница 73: ... 12B 1 General Functions 12B 1 1 Operation Modes x Auto Mode x Cooling Mode x Drying Mode x Fan Mode x Heating Mode 12B 1 2 Functions x I FEEL x Forced Mode x Protection hot keep Deicing defrosting x Timer x Sleep x Fresh Air x Ionizer x E S F RCT remote controller temperature SPT set point temperature ...

Страница 74: ... x IFAN speed range Auto Low Mid and Hi Initial speed Auto x SPT can be set by R C command heating cooling dry or fan mode x The Mode can not be changed x If RT is invalid it will go into Drying mode state 2 12B 2 2 Cooling Mode x SPT range 16ºC 30ºC Initial 24ºC x IFAN speed range Auto Low Mid and High Initial speed Hi x Auto Fan IFAN H M L SPT 1ºC SPT 2ºC SPT 3ºC SPT 4ºC RT Note 1 When fan speed...

Страница 75: ...nues protection x OFAN will turn off 5 seconds after COMP stop when turning the unit off or changing to heat mode x RV AHEAT closes x Louvers action rules see 3 7 x Sleep Function see 3 1 12B 2 4 Defrosting ICT ºC 7 1 0 3 5 min 1 min 5 min COMP ON OFF OFAN ON OFF x IFAN always run at the set speed x After COMP is on for 5 minutes if ICT 3ºC during 1 minute COMP and OFAN stop If ICT 7ºC COMP and OF...

Страница 76: ... forced to LOW If OCT 55ºC IFAN restore to normal x If OCT 66ºC COMP stop and OFAN is forced on If OCT 52ºC COMP and OFAN will restore to normal operation Note If OCT is invalid high pressure protection cannot be activated 12B 2 6 Fan Mode x S P T range 16ºC 30ºC Initial 24ºC x IFAN speed range Auto Low Mid and Hi Initial speed High x If IFAN is set to Auto Fan the IFAN will run at Low speed x IFA...

Страница 77: ...2 or state 3 SPT 3ºC RT unit will go into state 1 COMP on Off 4 min 10 min 10 min 6 min 10 min OFAN on Off Supper low Supper low set speed IFAN on Off State3 State2 State1 x State 1 COMP OFAN are on IFAN runs at the setting fan speed x State 2 COMP OFAN are on for 10 minutes and off for 6 minutes IFAN speed is always at Supper Low Note F S type is Low x State 3 COMP OFAN are on for 4 minutes and o...

Страница 78: ...d to high there is 3 minutes delay to avoid the fan speed changing frequently But not vice versa 2 If RT is invalid and the fan speed is set to Auto IFAN will operate at the medium speed 12B 2 9 Comp Operation COMP On Off SPT 1ºC SPT SPT 1ºC RT x If RT SPT 1ºC COMP stop OFAN will turn off after a delay of 30 seconds x If RT SPT 1ºC COMP and OFAN will turn on Note 1 COMP turns off have 3 min delay ...

Страница 79: ...CT 12B 2 11 For F S IFAN Set speed L Off 23ºC 28ºC 32ºC 38ºC ICT x If COMP turn on and ICT 28ºC IFAN is Low x If COMP is on for a period of 4 minutes or ICT 38ºC IFAN is in set speed x If COMP off IFAN keep operating at Low speed for additional 30 seconds and stop Note When ICT is invalid IFAN stop till COMP is on for 40 seconds and then will turn on at the set speed If COMP turns off IFAN will be...

Страница 80: ...ng AHEAT will turn on if all the following conditions are met x COMP is on for 60 seconds x RT 20ºC x IFAN run at least at LOW speed x RT SPT 2ºC x ICT 50ºC AHEAT will turn off if one of the following conditions is filled x RT 21ºC x COMP or IFAN stop x RT SPT 1ºC x ICT 55ºC Note 1 If ICT or RT is invalids AHEAT will not be activated 2 When the system turns off if the AHEAT does not operate before...

Страница 81: ... If ICT is invalid and OCT 6ºC keeps for 4 min sum of COMP on 45min 13b 2 14 1 Deicing process According to anti cool wind IFAN Any Off OFAN Any Off RV Any Off COMP Any Off AHEAT Any Off 1min 55s 5s 9 min or OCT 12 ºC 55s 20s 5s x At the beginning of Deicing COMP IFAN OFAN stop RV stops after 55 seconds and then COMP will turn on after 5 seconds x Deicing ends if OCT 12ºC or Deicing time is more t...

Страница 82: ... unit operation after preset time x After power failure all preset timers are cleared the system is forced to stand by mode and the Timer LED indicator is blinked to indicate the situation The LED keeps blinking until the Timer setting can be reloaded form an R C message x When the A C receives any valid message from the R C Its current ON OFF Timer settings will be replaced by the new timer setti...

Страница 83: ...al sensor As soon as new I FEEL data is received from the R C the I FEEL Mode will be resumed 12B 3 4 E S F and Ionizer x E S F and Ionizer will turn on when receiving a signal from the R C and IFAN on 12B 3 5 Fresh Air Function x Fresh Air has two ways continuous and Auto x If the Fresh Air signal from R C is continuous Fresh Air is on till the signal is changed x If the Fresh Air signal from R C...

Страница 84: ...ngle L R this function used for WNG only Swing angle Left side 0 70º Right side 0 60º 12B 3 8 Forced Mode x When the air conditioner is in standby press the SLEEP button for 3 seconds till 5 beeps given by the buzzer the forced cooling operation starts COMP and OFAN turns on COMP is restricted by 3 minutes delay protection RV does not move and IFAN run at high speed and shut off automatically afte...

Страница 85: ... set fan speed When Strong signal from R C is off Strong function is canceled IFAN operate at set speed Note If COMP stops strong function is canceled IFAN will operate at set speed 12B 3 13 On unit indicators and controls x For WMN Standby led indicate Error message Error indication Standby led Blinks at 1Hz on off RT 1 ICT 2 OCT 3 IFAN feedback 4 x During protection and Deicing operation LED bli...

Страница 86: ...as no 3 minutes delay protection 12B 3 17 RV control x In cooling or drying mode or fan mode RV is off x In heating mode RV will turns on x Switching between heating mode to other modes or shutting off in heating mode RV delays 2 minutes before turning off 12B 3 18 5 Diagnostic x If MCU detect that one of the sensors RT ICT or OCT is blow 40ºC or over 85ºC the sensor is invalid and will be indicat...

Страница 87: ...un to MAX angle IFAN in Mid speed COMP on Comp off OFAN on OFAN off RV on Valve off E S F on E S F off Fresh Air on Fresh Air off Ionizer on Ionizer off sensor test see note1 step motor A and B run to MIN angle beep two then exit Note If OCT is not 25 2ºC the power and operating led will turn on If RT is not 25 2ºC operate led and timer led on If ICT is not 25 2ºC timer and filter led will turn on...

Страница 88: ... the main P C B If there is voltage replace capacitor or motor 5 The outdoor fan does not function correctly Check the voltage between out door fan terminals on the main P C B There is voltage between outdoor fan terminals on the outdoor unit There is no voltage between outdoor fan terminals on the outdoor unit If there is no voltage replace main P C B Replace capacitor or motor Check and repair e...

Страница 89: ...r faulty Motor windings are shorted Check voltage repair wiring if necessary Check fan wheel if it is tight enough on motor shaft tighten if necessary 13 Partial limited air supply at indoor unit Lack of refrigerant will accompanied by whistling noise cause ice formation on indoor unit coil in cooling mode charge the unit after localizing leak 14 Water accumulates and over ﬂow from indoor unit sec...

Страница 90: ... Motor A 1 452969500 Step Motor B 1 19 4521158R Power cord cable Euro 1 4520278R Power cord cable Without plug 1 20 4519147 Power Cord Clip 1 465320006 Wire Fixing Block 1 21 467300080R Display Board Assy LEX7 9 12 14 with new function 1 22 4518666 Sensor Braket 1 23 467300063R Controller WNG Flat LEX 7 HuaLian MCU With New Function 1 467300064R Controller WNG Flat LEX 9 HuaLian MCU With New Funct...

Страница 91: ...14 3 EXPLODED VIEWS AND SPARE PARTS LISTS Revision Y06 01 Service Manual LEX 14 1 3 Outdoor Unit ONG 7 9 12 ST ...

Страница 92: ...1 19 05 Mar 04 02 Sep 04 4526606 Capillary Assy ST 1 19 02 Sep 04 Active 4525650 Charge tube 1 20 05 Mar 04 Active 4526608 Compressor Jacket 1 21 05 Mar 04 12 Mar 04 452799600 Compressor Jacket ONG3 7 1 21 12 Mar 04 Active 4519610 Compressor Isolation Top Cover 1 22 05 Mar 04 11 Mar 04 4514091 Grommet 3 23 05 Mar 04 Active 4510677 Nut With Flange M8 D 24 3 24 05 Mar 04 Active 4519987 Wire assy 1 2...

Страница 93: ...e 4514588 5 Poles terminal block 1 14 05 Mar 04 Active 204107 Cable clip Nylon 1 15 05 Mar 04 Active 4527281 Capillary Assy 1 19 05 Mar 04 Active 4527362 Charge tube TP2 6 35x0 8 1 20 05 Mar 04 Active 452799601 Compressor Jacket ONG3 9 1 21 05 Mar 04 Active 4510677 Nut With Flange M8 D 24 1 24 05 Mar 04 Active 4527008 Wire assy 1 25 05 Mar 04 Active 4524230 Compressor assy GK113PAG 1 26 05 Mar 04 ...

Страница 94: ... 03 13 Jan 04 4527362 Charge tube TP2 6 35x0 8 1 20 13 Jan 04 Active 4519600 Compresssor Jacket 1 21 15 Nov 03 13 Jan 04 4527007 Comp Jacket 1 21 13 Jan 04 16 Feb 04 4527058 Comp Jacket 1 21 16 Feb 04 Active 4519610 Compressor Isolation Top Cover 1 22 15 Nov 03 13 Jan 04 4514091 Grommet 3 23 15 Nov 03 15 Nov 03 4516357 Rubber Cushion 1K15910311 3 23 15 Nov 03 Active 4510677 Nut With Flange M8 D 24...

Страница 95: ...14 7 EXPLODED VIEWS AND SPARE PARTS LISTS Revision Y06 01 Service Manual LEX 14 1 7 Outdoor Unit ONG 14 ST ...

Страница 96: ...19 01 Mar 04 01 Mar 04 4526919 Capillary Assy ID1 6x600 1 19 01 Mar 04 Active 4527362 Charge tube TP2 6 35x0 8 1 20 01 Mar 04 Active 4527058 Comp Jacket 1 21 01 Mar 04 Active 4527287 Grommet 3 23 01 Mar 04 Active 4510677 Nut With Flange M8 D 24 3 24 01 Mar 04 Active 4519987 Wire assy 1 25 01 Mar 04 Active 4526453 Compressor Assy RN165VHSMT 1 26 01 Mar 04 Active 4527289 Terminal Packing 1 27 01 Mar...

Страница 97: ...14 9 EXPLODED VIEWS AND SPARE PARTS LISTS Revision Y06 01 Service Manual LEX 14 1 9 Outdoor Unit ONG 7 RC ...

Страница 98: ...4 Active 4527362 Charge tube TP2 6 35x0 8 1 20 05 Mar 04 Active 4527058 Comp Jacket 1 21 05 Mar 04 12 Mar 04 452799600 Compressor Jacket ONG3 7 1 21 12 Mar 04 Active 4516357 Rubber Cushion 1K15910311 3 23 05 Mar 04 12 Mar 04 4514091 Grommet 3 23 12 Mar 04 Active 4510677 Nut With Flange M8 D 24 3 24 05 Mar 04 Active 4519987 Wire assy 1 25 05 Mar 04 12 Mar 04 4527375 Compressor Wire 1 25 12 Mar 04 A...

Страница 99: ...14 11 EXPLODED VIEWS AND SPARE PARTS LISTS Revision Y06 01 Service Manual LEX 14 1 11 Outdoor Unit ONG 9 12 RC ...

Страница 100: ...ip Nylon 1 15 05 Mar 04 Active 236179 2 Poles terminal block 1 16 05 Mar 04 Active 4516637 Out sensor Black 1 17 05 Mar 04 Active 4527444 Restrictor 029 1 18 05 Mar 04 11 Mar 04 4527127 Capillary Assy 1 19 05 Mar 04 Active 4527362 Charge tube TP2 6 35x0 8 1 20 05 Mar 04 Active 452799601 Compressor Jacket ONG3 9 1 21 05 Mar 04 Active 4514091 Grommet 1 23 05 Mar 04 Active 4510677 Nut With Flange M8 ...

Страница 101: ... Active 4527362 Charge tube TP2 1 20 05 Mar 04 Active 4527058 Comp Jacket 1 21 05 Mar 04 12 Mar 04 452799600 Compressor Jacket ONG3 7 1 21 12 Mar 04 Active 4516357 Rubber Cushion 1K15910311 3 23 05 Mar 04 12 Mar 04 4514091 Grommet 3 23 12 Mar 04 Active 4510677 Nut With Flange M8 D 24 3 24 05 Mar 04 Active 4519987 Wire assy 1 25 05 Mar 04 12 Mar 04 4527375 Compressor Wire 1 25 12 Mar 04 Active 4526...

Страница 102: ...14 14 EXPLODED VIEWS AND SPARE PARTS LISTS Revision Y06 01 Service Manual LEX 14 1 14 Outdoor Unit ONG 14 RC ...

Страница 103: ...Assy 1 19 23 Feb 04 01 Mar 04 4526918 Valve Capillary Assy 1 19 01 Mar 04 Active 4527362 Charge tube TP2 6 35x0 8 1 20 23 Feb 04 Active 4527058 Comp Jacket 1 21 23 Feb 04 Active 4516357 Rubber Cushion 1K15910311 3 23 23 Feb 04 01 Mar 04 4527287 Grommet 3 23 01 Mar 04 Active 4510677 Nut With Flange M8 D 24 3 24 23 Feb 04 Active 4519987 Wire assy 1 25 23 Feb 04 Active 4526452 Comp Assy GMCC PA145X2C...

Страница 104: ...ering code no RCW 436195 WNG add PCB SP000000290 ENGLISH REMOTE CONTROL 1 START STOP button 2 Operation mode selection button COOLING HEATING AUTO COOL HEAT DRY FAN 3 LOCAL temperature sensing button 4 FAN SPEED and AUTO FAN button 5 Room temperature UP button 6 Room temperature DOWN Button 7 NIGHT button 8 Airflow direction MANUAL positioning control button 9 Airflow direction AUTO CONTROL button...

Страница 105: ... PCB SP000000290 1 2 3 4 1 Display screen 2 Keys for raising and lowering the set temperature 3 Ventilation mode selection Low speed Medium speed High speed AUTO Automatic speed selection 4 ON Standby Accessing the time setting mode Advancing the time setting Retarding the time setting Clearing memory of programmed time settings in programming mode Day of the week selection key or sending I feel l...

Страница 106: ...15 3 OPTIONAL ACCESSORIES Revision Y06 01 Service Manual LEX 15 3 RCW RCW2 Wiring Connections as Shown on Kit ...

Страница 107: ...16 1 APPENDIX A Revision Y06 01 Service Manual LEX APPENDIX A INSTALLATION AND OPERATION MANUAL OPERATION MANUAL LEX 7 9 12 14 LED INSTALLATION MANUAL LEX 7 9 12 14 LED ...

Страница 108: ......

Страница 109: ...r The blue light indicator on the unit will light up indicating the ionizer in operaton To cancel the operation set slide swith to OFF position Important Notice When the air conditioner is turned OFF or if the indoor fan stops operation the IONIZER stops automatically AIR DIRECTON POSITIONING optional Automatic swing of Horizontal air flow in hor izontal di recton The f lap move automatically in r...

Страница 110: ...ional ventilation during use Do not direct air flow at fireplaces or heating apparatus Do not climb on or place objects on the air conditioner Do not hang objects form the indoor unit Do not set flower vases or water containers on top of air conditioners Do not expose the air conditioner directly to water Do not pull power supply cord Turn off power source when not using the unit for extended peri...

Страница 111: ...power Lights up in green during operation D IONIZER INDICATOR Lights up during the Ionizer operation E TIMER INDICATOR Lights up during timer and sleep operation F FILTER INDICATOR Lights up when air filter requiers cleaning G SIGNAL RECEIVER Receive signals from the remote control H FRESH AIR OPERATION BUTTON Used to switch the Fresh air on or off I RESET BUTTON Press to turn off the filter indic...

Страница 112: ...RE AND MAINTENANCE 4 OUTDOOR UNIT 3 1 2 6 7 8 9 5 4 Outdoor unit air intake Power cable Control wire Air Fresh controls wire Liquid line Suction line Air Fresh hose optional Dain hose Outdoor unit air outlet 1 9 2 3 4 5 6 7 8 ...

Страница 113: ... is retained When restarted operation will be resumed in the last mode of operation However if the timer was used the unit will be turned off by the timer only if the remote control is aimed at the unit Otherwise the power failure will cause the timer data to be erased from the microprocessor memory After turning on allow more than 3 minutes for cooling heating or dry operation to start When DRY m...

Страница 114: ...e above procedure is used for cleaning the electrostatic filter Before performing any maintenance procedure make sure to disconnect the air conditioner from the power PURIFICATION FILTER REPLACEMENT The air purifying filter should be removed form the unit and replaced once a year show as following 1 pulling out the filter Fig 2 2 replacing the filter in its place Wipe the unit with a soft dry clot...

Страница 115: ...nit does not respond properly to remote control command Air does not blow out from indoor unit Remedy Problem Cause Unit not connected to power Power failure Remote control malfunctions The remote control is locked IR signal does not reach unit Distance between remote control and unit too large or aimed at from improper angle IR receiver on unit exposed to strong light source De icing protection m...

Страница 116: ... ßº ô ñÑ Ë Ü ò ïò Ú º B ø è ò îò É ºô µ ò Ð º B ò Í Ì ïò Ð ª ò îò Î ª ò º ª ô µ ò Ì ª ò íò Ð µ A º A ò ìò º µ ô ï íò ÝËÌÌ ÒÙ ßÒÜ ÚÔßÎ ÒÙ ÌØÛ Ð Ð ÒÙ ÛÊßÝËßÌ ÑÒ ÑÚ ÌØÛ ÎÛÚÎ ÙÛÎß Ì ÑÒ ÌËÞÛÍ ßÒÜ ÌØÛ ÒÜÑÑÎ ËÒ Ì ßº º ô º º æ ïò Ý º ª º ª ª ò Þ º ª ò îò Ý º ª ò íò Ì º ª µ ª º ðÓÐ øð Ø ó ðòï ÓÐ øóéê Ø ò Ô º Bº ò ìò Ý ª ª º º ºº ª ò Ò ª º Bª ò ëò Ü º ª º ª º ª ª ò êò Ì ª º ª ª ò éò Î ª ª ª º ª ª ô ß ò èò Î...

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