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TECHNICAL & SERVICE MANUAL

OUTDOOR UNIT

HFC

utilized

R410A

June 2020

Model name

indication

PARTS CATALOG (OCB740)

CONTENTS

  1. SAFETY PRECAUTION .....................................2
  2. OVERVIEW OF UNITS .......................................5
  3. SPECIFICATIONS ............................................10
  4. DATA .................................................................11
  5. OUTLINES AND DIMENSIONS .......................25
  6. WIRING DIAGRAM ...........................................26
7. NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION .......27
  8. TROUBLESHOOTING ......................................45
  9. ELECTRICAL WIRING ...................................121
10. REFRIGERANT PIPING TASKS ....................127
11. DISASSEMBLY PROCEDURE .......................134

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

No. OCH740

<Outdoor unit>

[Model Name]

Salt proof model

PUMY-P112VKM5

PUMY-P125VKM5

PUMY-P140VKM5

PUMY-P112VKM5-ET

PUMY-P125VKM5-ET

PUMY-P140VKM5-ET

PUMY-P112VKM5-ER

PUMY-P125VKM5-ER

PUMY-P140VKM5-ER

PUMY-P112VKM5-BS

PUMY-P125VKM5-BS

PUMY-P140VKM5-BS

PUMY-P112VKM5-ETBS

PUMY-P125VKM5-ETBS

PUMY-P140VKM5-ETBS

PUMY-P112VKM5-ERBS

PUMY-P125VKM5-ERBS

PUMY-P140VKM5-ERBS

[Service Ref.]

PUMY-P112VKM5
PUMY-P125VKM5
PUMY-P140VKM5
PUMY-P112VKM5-ET
PUMY-P125VKM5-ET
PUMY-P140VKM5-ET
PUMY-P112VKM5-ER
PUMY-P125VKM5-ER
PUMY-P140VKM5-ER

PUMY-P112VKM5-BS
PUMY-P125VKM5-BS
PUMY-P140VKM5-BS
PUMY-P112VKM5-ETBS
PUMY-P125VKM5-ETBS
PUMY-P140VKM5-ETBS
PUMY-P112VKM5-ERBS
PUMY-P125VKM5-ERBS
PUMY-P140VKM5-ERBS

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Содержание PUMY-P112VKM5-ERBS

Страница 1: ...t Model Name Salt proof model PUMY P112VKM5 PUMY P125VKM5 PUMY P140VKM5 PUMY P112VKM5 ET PUMY P125VKM5 ET PUMY P140VKM5 ET PUMY P112VKM5 ER PUMY P125VKM5 ER PUMY P140VKM5 ER PUMY P112VKM5 BS PUMY P125VKM5 BS PUMY P140VKM5 BS PUMY P112VKM5 ETBS PUMY P125VKM5 ETBS PUMY P140VKM5 ETBS PUMY P112VKM5 ERBS PUMY P125VKM5 ERBS PUMY P140VKM5 ERBS Service Ref PUMY P112VKM5 PUMY P125VKM5 PUMY P140VKM5 PUMY P1...

Страница 2: ... rant piping is clean and it has no contaminants such as sulfur oxides dirt shaving particles etc which are hazard to refrigerant cycle In addition use pipes with specified thickness Contamination inside refrigerant piping can cause deterio ration of refrigerant oil etc Store the piping indoors and keep both ends of the piping sealed until just before brazing Leave elbow joints etc in their packag...

Страница 3: ...sure to install the unit in a location where the salt will be washed away by rainwater If a sunshade is installed rainwater may not clean the panel 3 To ensure that water does not collect in the base of the outdoor unit make sure that the base is level not at angle Water collecting in the base of the outdoor unit could cause rust 4 If the unit is installed in a coastal area clean the unit with wat...

Страница 4: ...HFC refrigerant Refrigerant recovery equipment Refrigerant recovery Tool exclusive for R410A Refrigerant cylinder Refrigerant charge Tool exclusive for R410A Applied oil Apply to flared section Ester oil ether oil and alkylbenzene oil minimum amount Ester oil ether oil Alkylbenzene oil minimum amount Safety charger Prevent compressor malfunction when charging refrigerant by spraying liquid refrige...

Страница 5: ...capacity range 50 to 130 of outdoor unit capacity 1 2 Branching pipe components CMY Y62 G E CMY Y64 G E CMY Y68 G E Branch header 2 branches Branch header 4 branches Branch header 8 branches Remote controller Name M NET remote controller MA remote controller Model number PAR U02MEDA PAR 40MAA PAR W21MAA when using PWFY Functions A handy remote controller for use in conjunction with the Melans cent...

Страница 6: ...T25 35 50VG MEXZ KW25 35 50VG 1 way ceiling cassette MLZ KA25 35 50VA MLZ KP25 35 50VF Note The lineup of a connectable indoor unit depends on a district areas country Connectable ecodan unit Model type Model name Cylinder unit EHST20C series except EHST20C MEC Hydrobox EHSC series except EHSC MEC Note Only 1 Cylinder unit or Hydrobox can be connected Branch box PAC MK54BC PAC MK34BC Number of bra...

Страница 7: ...ries remote controller 1 When connecting ecodan unit the total capacity of connected Air to Air indoor units is up to 130 of the outdoor unit Air to Air 130 ecodan However when operating Air to Air indoor unit s in heating mode and ecodan unit in DHW or heating mode at the same time the maximum connectable Air to Air indoor unit is below Model ATA total capacity Can be exceptionally connected P112...

Страница 8: ...5 to 20 C 5 4 Thermo OFF FAN mode automatically starts if the outdoor temp is lower than 17 C D B 5 Thermo OFF FAN mode automatically starts if the outdoor temp is higher than 21 C D B When connecting PWFY unit Cooling Heating Indoor intake water temperature 6 D B 10 to 45 C Outdoor intake air temperature 6 W B 20 to 15 C 6 PWFY series can operate in Heating mode but not in Cooling mode An indoor ...

Страница 9: ...y DHW ATA Heating 7 ATW Heating ATA Heating 7 Outlet water temperature 8 55 C Max 55 C Max 55 C Max 45 to 55 C Max Outdoor temperature 8 20 to 35 C 20 to 21 C 7 to 35 C 10 to 35 C 9 7 ATA unit Air to Air unit other than PWFY Cylinder unit or Hydrobox 8 Cylinder unit and Hydrobox cannot operate Cooling mode in connecting PUMY 9 When outdoor temp is less than 7 C outlet water temp is lowered Refer t...

Страница 10: ...ng 20 to 100 Cooling 24 to 100 Heating 18 to 100 Cooling 21 to 100 Heating 17 to 100 Motor output kW 2 9 3 5 3 9 Case heater kW 0 Lubricant FV50S 2 3litter External finish Galvanized Steel Sheet Munsell No 3Y 7 8 1 1 External dimension H W D mm 1 338 1 050 330 40 inch 52 11 16 41 11 32 13 1 9 16 Protection devices High pressure protection High pressure Switch Inverter circuit COMP FAN Overcurrent ...

Страница 11: ...otal Outdoor Unit Capacity CTo CTo Outdoor Rating Outdoor Design Temperature Correction Piping Length Correction 14 0 0 86 0 90 10 8 kW 6 Determination of Maximum System Capacity Comparison of Capacity between Total Indoor Units Capacity CTi and Total Outdoor Unit Capacity CTo CTi 13 3 CTo 10 8 thus select CTo CTx CTo 10 8 kW 7 Comparison with Essential Load Against the essential load 10 6 kW the ...

Страница 12: ... Total Outdoor Unit Capacity CTo CTo Outdoor Unit Rating Outdoor Design Temperature Correction Piping Length Correction Defrost Correction 16 0 1 00 0 96 0 89 13 7 kW 6 Determination of Maximum System Capacity Comparison of Capacity between Total Indoor Units Capacity CTi and Total Outdoor Unit Capacity CTo CTi 13 5 CTo 13 7 thus select CTi CTx CTi 13 5 kW 7 Comparison with Essential Load Against ...

Страница 13: ...re C D B Indoor Temperature 15 0 10 0 5 0 0 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 52 0 0 0 0 2 0 4 0 6 0 8 1 0 1 2 16 C W B 18 C W B 19 C W B 20 C W B 22 C W B 24 C W B The outdoor units have varied capacity at different designing temperature Using the nominal cooling heating capacity value and the ratio below the capacity can be observed at various temperature Figure 7 Indoor unit te...

Страница 14: ...10 0 5 0 0 0 5 0 10 0 15 0 0 5 0 6 0 7 0 8 0 9 1 0 1 1 1 2 Ratio of power input Outdoor Temperature C W B Indoor Temperature 20 0 15 0 10 0 5 0 0 0 5 0 10 0 15 0 0 0 0 2 0 4 0 6 0 8 1 0 1 2 1 4 25 C D B 15 C D B 20 C D B Figure 9 Indoor unit temperature correction To be used to correct indoor unit capacity only Figure 10 Outdoor unit temperature correction To be used to correct outdoor unit capaci...

Страница 15: ...ength 10 10 10 Fan speed Hi Hi Hi Amount of refrigerant kg 7 2 7 2 7 2 Outdoor unit Electric current A 16 17 17 38 21 67 21 91 25 84 25 54 Voltage V 230 230 230 Compressor frequency Hz 67 69 84 86 96 96 LEV opening Indoor unit Pulse 357 421 447 525 511 586 Pressure High pressure Low pressure MPa G 2 70 0 94 2 86 0 70 2 86 0 88 2 87 0 67 2 95 0 85 2 95 0 65 Temp of each section Outdoor unit Dischar...

Страница 16: ...6 0 8 0 12 0 10 0 16 0 14 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Capacity kW Total capacity of indoor units kW 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW 0 0 5 0 10 0 15 0 20 0 Current A 0 5 1 0 1 5 2 0 2 5 3 0 3 5 Input kW 220V 230V 240V 4 4 1 PUMY P112VKM5 BS PUMY P112VKM5 ET...

Страница 17: ...s kW 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW Current A 0 5 1 0 1 5 2 0 2 5 3 0 3 5 Input kW 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 0 0 5 0 10 0 15 0 20 0 Total capacity of indoor units kW PUMY P112VKM 220V 230V 240V 4 4 2 PUMY P112VKM5 BS PUMY P112VKM5 ET BS PUMY P112VKM5 ER BS Heating ...

Страница 18: ... 16 0 18 0 20 0 Total capacity of indoor units kW 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 2 0 2 0 4 0 6 0 8 0 12 0 10 0 16 0 18 0 14 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Capacity kW Total capacity of indoor units kW Total capacity of indoor units kW 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 0 0 5 0 10 0 15 0 20 0 220V 230V 240V ...

Страница 19: ... 0 3 5 4 0 2 0 2 0 4 0 6 0 8 0 12 0 10 0 16 0 18 0 14 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Capacity kW Total capacity of indoor units kW Total capacity of indoor units kW 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 0 0 5 0 10 0 15 0 20 0 220V 230V 240V 4 4 4 PUMY P125VKM5 BS PUMY P125VKM5 ET BS PUMY P125VKM5 ER BS Heating ...

Страница 20: ... 0 8 0 12 0 10 0 16 0 18 0 20 0 14 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 2 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 2 0 5 0 0 0 10 0 15 0 20 0 25 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 Total capacity of indoor units kW Capacity kW Total capacity of indoor units kW 220V 230V 240V ...

Страница 21: ... 0 22 0 2 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 Total capacity of indoor units kW Capacity kW Total capacity of indoor units kW Current A 2 0 5 0 0 0 10 0 15 0 20 0 25 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 220V 230V 240V 4 4 6 PUMY P140VKM5 BS PUMY P140VKM5 ET BS PUMY P140VKM5 ER BS Heating ...

Страница 22: ...corresponding to standard piping length from Figure 14 Then multiply by the heating capacity from Figure 9 and 10 in 4 2 CORRECTION BY TEMPERATURE to obtain the actual capacity 1 Capacity Correction Curve 0 20 40 60 80 100 120 140 160 180 0 50 0 55 0 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 1 00 9 4 6 3 12 5 16 2 Capacity ratio Piping equivalent length m Total capacity of indoor unit Total capacity o...

Страница 23: ... B 6 4 2 0 2 4 6 8 10 15 20 Correction factor 1 00 0 98 0 89 0 88 0 89 0 90 0 95 0 95 0 95 0 95 0 95 0 20 40 60 80 100 120 140 160 180 0 50 0 55 0 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 1 00 11 6 7 8 15 5 20 2 Capacity ratio Piping equivalent length m 0 20 40 60 80 100 120 140 160 180 0 50 0 55 0 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 1 00 Capacity ratio Piping equivalent length m Total capacity of ...

Страница 24: ...3 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 PUMY P125VKM5 BS PUMY P125VKM5 ET BS PUMY P125VKM5 ER BS COOLING MODE HEATING 50 SPL dB 52 LINE 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR C...

Страница 25: ...25 OCH740 5 OUTLINES AND DIMENSIONS Unit mm ...

Страница 26: ...26 OCH740 6 WIRING DIAGRAM ...

Страница 27: ... 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 Address SW 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 Address SW SW1 ON 1 2 3 4 5 6 SW1 ON 1 2 3 4 5 6 CITY MULTI Indoor unit 009 CITY MULTI Indoor unit 010 MA remote controller CITY MULTI 001 050 For centralized management 061 Outdoor unit For Branch box CITY MULTI indoor unit 0 1 2 3 4 5 6 7 8 9 Address SW CITY MULTI Indoor unit 011 CITY MULTI Indoor unit 012 CI...

Страница 28: ...ontroller check the content of entries and clear entries etc B Interlocked LOSSNAY Used to set the linked operation of a Lossnay unit Home Date and time Schedule Timer Night setback Menu 1 2 User Service Home Menu Setup Error menu Test run User Service Back Setup Interlocked LOSSNAY Group setting Search connection information How to display the setup screen LED Room name Set to Auto Cool Mode ON M...

Страница 29: ... unit whose address was set in the Add 1 section 3 To delete the interlock settings After taking Step 2 above select the address to be deleted in the Add 2 section and then touch the Del button 1 Select an address in the Address field 2 Touch the Conf button to search for the interlocked units The results will appear in the left column When multiple units are found the addresses that do not fit on...

Страница 30: ...iquid pipe Stop valve Service port Capillary tube Accumulator Strainer High pressure sensor 63H Low pressure sensor 63LS Restrictor valve Refrigerant flow in cooling Refrigerant flow in heating Capillary tube for oil separator ø2 5 ø0 8 L1000 Refrigerant piping specifications dimensions of flared connector Unit mm in Item Capacity Liquid piping Gas piping Indoor unit P10 P15 P20 P25 P32 P40 P50 ø6...

Страница 31: ...er Thermistor TH2 HIC pipe Stop valve Service port Capillary tube Accumulator Strainer Refrigerant flow in cooling Refrigerant flow in heating 7 4 REFRIGERANT SYSTEM DIAGRAM WHEN USING BRANCH BOX In the case of using 2 branch boxes A B B B B B Branch box A A A B B B B B 2 branches pipe joint optional parts Branch box 1 Branch box 2 In the case of using 1 branch box Flare connection employed No bra...

Страница 32: ...ox Indoor unit For Cylinder unit and Hydrobox Pipe size mm Liquid ø9 52 Gas ø15 88 1 Valve size of branch box for outdoor unit For liquid ø9 52 mm For gas ø15 88 mm 2 Valve size of branch box for indoor unit UNIT Liquid pipe ø6 35 mm Gas pipe ø9 52 mm UNIT Liquid pipe ø6 35 mm Gas pipe ø9 52 mm UNIT Liquid pipe ø6 35 mm Gas pipe ø9 52 mm UNIT Liquid pipe ø6 35 mm Gas pipe ø9 52 mm UNIT Liquid pipe...

Страница 33: ... M1M2 S M1M2 S M1M2 S 1 2 M1M2 S A B A B A B A B Using 2 M NET remote controllers for each CITY MULTI series indoor unit a Same as above 1 a b Same as above 1 b c Set address switch on outdoor unit P C B as shown below Unit Range Setting Method CITY MULTI series indoor unit M IC 001 to 050 Outdoor unit OC 051 to 100 Use the smallest address of all the indoor units plus 50 Main M NET Remote Control...

Страница 34: ...OC TB5 TB15 02 M IC M NET RC Sub 102 M NET RC Main 104 2M NET RC 1 2 A B M1M2 S M1M2 S M1M2 S 1 2 M1M2 S A B A B A B A B 103 1M NET RC Sub 1 Use the CITY MULTI series indoor unit M IC address plus 150 as the sub M NET remote control ler address In this case it should be 152 2 3 or more M NET remote controllers M NET RC cannot be connected to 1 CITY MULTI series indoor unit Same as above NO TB5 TB1...

Страница 35: ...st recent address within the same group to the terminal block on the M NET remote controller M NET RC d Connect together terminals M1 M2 and terminal S on the terminal block for centralized control TB7 for the outdoor unit OC e DO NOT change the jumper connector CN41 on outdoor multi controller circuit board f The earth processing of S terminal for the centralized control terminal block TB7 is unn...

Страница 36: ...01 TB5 03 M IC TB5 02 TB5 04 M IC TB5 05 TB5 07 M IC TB5 06 101 105 104 155 OC 53 OC Power Supply Unit A Group B Group C Group D Shielded Wire E Sub M NET Remote Controller Address example TB7 TB3 M1M2 S TB7 M1M2 S M1M2 S TB3 M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S A B A B A B A B M1M2 S System controller NO NO M IC M IC M IC M NET RC M NET RC M NET RC Never connect together...

Страница 37: ...M2 S 1 2 M1M2 S 1 2 M1M2 S A B A B A B Using 2 MA remote controllers for each CITY MULTI series indoor unit a The same as above 1 a b The same as above 1 b c In the case of using 2 remote controllers connect terminals 1 and 2 on transmission cable terminal block TB15 for each indoor unit with the terminal block for 2 MA remote controllers Set either one of the MA remote controllers to sub remote c...

Страница 38: ...ngth L1 L2 200 m 1 25 mm MA remote controller cable length R1 R2 200 m 0 3 to 1 25 mm NO TB5 TB15 TB3 TB7 00 OC TB5 TB15 00 M IC MA RC MA RC M NET RC 1 2 A B M1M2 S M1M2 S M1M2 S 1 2 M1M2 S A B A B 00 M IC 00 Longest transmission cable length L1 L2 200 m 1 25 mm MA remote controller cable length R3 R4 R5 200 m 0 3 to 1 25 mm MA RC Main TB5 TB15 00 M IC TB3 TB7 00 OC TB5 TB15 00 M IC MA RC Sub MA R...

Страница 39: ... to the termi nal block on the MA remote controller MA RC Nonpolarized two wire d Connect together terminals M1 M2 and terminal S on the terminal block for centralized control TB7 for the outdoor unit OC e DO NOT change the jumper connector CN41 on outdoor multi controller circuit board f The earth processing of S terminal for the centralized control terminal block TB7 is unnecessary Connect the t...

Страница 40: ... C E M IC 51 TB5 TB15 TB15 TB15 TB15 MA RC 01 M IC TB5 03 M IC TB5 02 M IC TB5 04 M IC 05 M IC TB5 07 M IC 06 MA RC MA RC MA RC OC 53 OC Power Supply Unit TB7 TB3 M1M2 S M1M2 S TB7 M1M2 S M1M2 S TB3 M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S A B A B A B A B 1 2 1 2 1 2 1 2 1 2 TB15 TB5 M1M2 S 1 2 TB15 TB5 M1M2 S 1 2 TB15 D System controller NO NO Never connect together the terminal blocks TB...

Страница 41: ...minals M1 and M2 on the terminal S on the transmission cable terminal block TB5 of the Branch Box c Connect terminals 1 and 2 on the transmission cable terminal block TB5 TB15 of the A control indoor unit A IC to the terminal block on the MA remote controller MA RC d Connect together terminals M1 M2 and terminal S on the terminal block for centralized control TB7 for the outdoor unit OC e DO NOT c...

Страница 42: ...M1M2 TB3A A IC 01 02 03 04 MA RC WL RC WL RC WL RC M NET RC 101 05 06 07 08 S1 S2 S3 TB S1 S2 TB5 TB15 1 2 A B A B A B A A B B 1 2 1 2 1 2 1 2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB3B S1 S2 S3 TB3C S1 S2 S3 TB3D S1 S2 S3 TB3E S1 S2 S3 TB3A S1 S2 S3 TB3B S1 S2 S3 TB3C S1 S2 S3 M1 M2 S TB5 M1 M2 S TB5 L 01 06 2 Branch Box A A Branch Box A MA RC MA R...

Страница 43: ...each outdoor unit OC to terminals M1 and M2 on the terminal S on the transmission cable terminal block TB5 of the Branch Box or CITY MULTI series indoor unit M IC c Connect terminals 1 and 2 on the transmission cable terminal block TB5 TB15 of the A control indoor unit A IC or CITY MULTI series indoor unit M IC to the terminal block on the MA remote controller MA RC d Connect together terminals M1...

Страница 44: ... RC WL RC WL RC 05 A IC 06 A IC 07 A IC 08 S1 S2 S3 TB S1 S2 TB5 TB15 1 2 A B A B A B A B 1 2 1 2 1 2 1 2 MA RC A B 1 2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB3B S1 S2 S3 TB3C S1 S2 S3 TB3D S1 S2 S3 TB3E S1 S2 S3 TB3A S1 S2 S3 TB3B S1 S2 S3 TB3C S1 S2 S3 M1 M2 S TB5 M1 M2 S TB5 L2 A A A M IC 09 M IC 10 TB5 M1 M2 1 2 1 2 S TB5 M1 M2 S L3 L4 Power Su...

Страница 45: ... to 7 2 Special Function Operation and Settings for M NET Remote Controller as for settings In MA remote controller s this registration is unnecessary 4 More than 12 hours later from power supply to the outdoor unit turn all power switch to on for the test run Perform test run according to the Operation procedure table of the bottom of this page While test running make test run reports 8 1 1 1 Tes...

Страница 46: ...t blows out Press the F1 button to go through the operation modes in the order of Cool and Heat Check the auto vane with the F1 F2 buttons Press the button to return to Test run operation Press the button When the test run is completed the Test run menu screen will appear The test run will automatically stop after 2 hours The function is available only for the model with vanes Test run operation A...

Страница 47: ... delay code 4500 U3 5101 Air inlet thermistor TH21 open short or Compressor temperature thermistor TH4 open short Check delay code 1202 U4 5102 Liquid pipe temperature thermistor TH22 open short Suction pipe temperature thermistor TH6 open short Check delay code 1211 U4 5103 Gas pipe temperature thermistor TH23 open short U4 5105 Outdoor liquid pipe temperature thermistor TH3 open short Check dela...

Страница 48: ...ure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy No Yes No Yes Are they connected normally Are they connected normally Check the connection of the communication line CN2 and CN4 between the outdoor controller board and power board Connect the wiring properly Replace them in the case of breakage Connect the CN2 and CN4 properly Replace th...

Страница 49: ...eign object Refrigerant shortage Refrigerant liquid accumulation in compressor while indoor unit is OFF thermo OFF Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 1102 U2 Compressor temperature trouble Yes Yes No Yes Yes No No No Is 5101 displayed when restarted Is the outdoor stop valve liquid gas fully open ...

Страница 50: ...us page Is the voltage normal value Is it free from any trace of over heating or burning Is the resistance detected Is the resistance detected Check the voltage and appearance of the outdoor multi controller circuit board Disconnect the thermistor wiring to check the resistance Disconnect the indoor LEV wiring and check the resistance Replace the outdoor multi controller circuit board Replace the ...

Страница 51: ...ged filter or dirt on indoor unit Malfunction or locked indoor fan motor Decreased airflow caused by defective inspection of outdoor temperature thermistor It detects lower temperature than actual temperature Indoor LEV performance failure Malfunction of fan driving circuit SV1 performance failure Defective High pressure sensor Defective High pressure sensor input circuit on outdoor multi controll...

Страница 52: ...e filter Clogged filter No clog Continued from the previous page Is there dirt on the indoor heat exchanger Is the outdoor unit short cycled Is there dirt on the outdoor heat exchanger Are the pipes clogged or broken Wash the indoor heat exchanger Resolve the short cycle Wash the outdoor heat exchanger Check and repair piping dirty dirty short cycled no dirt no dirt no short cycle Continue to the ...

Страница 53: ... Is the resistance detected Is the resistance detected Replace the TH7 Replace the indoor LEV Disconnect the indoor LEV wiring to check the resistance Continue to the next page Is the voltage normal Is it free from any trace of over heating or burning Replace the indoor controller board Check the voltage and appearance of the indoor controller board Check the resistance of SV1 For the voltage refe...

Страница 54: ... Is it free from any trace of over heating or burning Is the resistance detected Is the resistance detected Check the voltage and appearance of the outdoor controller board Disconnect the thermistor wiring to check the resistance Disconnect the indoor LEV wiring and check the resistance Replace the outdoor controller board Replace the thermistor Replace the indoor LEV Replace the indoor controller...

Страница 55: ...e holder of TH4 Disconnection of LEV coil Disconnection of LEV connector LEV performance failure Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Chart 1 of 2 temp resistance characteristic 0 C 700 kΩ 10 C 410 kΩ 20 C 250 kΩ 30 C 160 kΩ 40 C 104 kΩ No Yes No Yes No Yes Is the TH4 wiring disconnected Is the resi...

Страница 56: ...er to 8 8 HOW TO CHECK THE COMPONENTS No No Yes Yes No Yes Continued from the previous page Is the voltage normal Is it free from any trace of over heating or burning Is the voltage detected Replace the indoor controller board Replace the 63HS Replace the outdoor multi controller circuit board Check the voltage and appearance of the indoor controller board Check the 63HS voltage Is the resistance ...

Страница 57: ... thermistor Defective outdoor multi controller circuit board Indoor LEV performance failure Gas leakage or shortage Defective 63HS TH3 Thermistor Outdoor liquid pipe TH7 Thermistor Ambient LEV Linear expansion valve 63HS High pressure sensor Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Yes No No No No Yes Y...

Страница 58: ...m the previous page Is the voltage detected Is the voltage normal value Is it free from any trace of over heating or burning Is the resistance detected Replace the outdoor multi controller circuit board Replace the 63HS Replace the indoor LEV Replace the indoor controller board Check the 63HS voltage Check the voltage and appearance of the outdoor multi controller circuit board Disconnect the indo...

Страница 59: ...d Malfunction of outdoor LEV LEV1 blockage TH21 Indoor intake temperature thermistor RT11 or TH1 TH22 Indoor liquid pipe temperature thermistor RT13 or TH2 TH23 Indoor gas pipe temperature thermistor TH A to E LEV Linear expansion valve Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy v No Yes No Yes Is the out...

Страница 60: ...ox Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 1503 P6 Anti freeze protection of plate heat exchanger Freeze protection of branch box or indoor unit No Yes No Yes No Yes Yes No 60 OCH740 Connect the piping and wiring to the same port Is the resistance detected Connect the LEV wiring to the intended port pr...

Страница 61: ...uit board Defective outdoor power circuit board Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Yes No No No Yes Yes Is the connector for outdoor multi controller circuit board or 4 way valve coil disconnected or loose Reconnect the connector or connect it tightly Disconnect the connector for outdoor multi con...

Страница 62: ...ds Diagnosis Remedy 4100 UF Compressor current interruption Locked compressor Chart 1 of 2 Yes Yes Yes No No No Is the stop valve liquid gas fully open Is the power supply voltage normal Are they set properly Open the stop valve liquid gas fully Check the looseness disconnection or breakage of compressor wiring Ensure power supply from the facility Check for power supply open phase Set the model s...

Страница 63: ...emedy Chart 2 of 2 Yes Yes No No Are they connected properly Is the compressor faultily grounded Connect the compressor wiring U V and W phase properly then turn the power back ON Replace the outdoor power circuit board Defective outdoor power circuit board Replace the compressor Defective compressor Check whether the compressor is faultily grounded or not Continued from the previous page 63 OCH74...

Страница 64: ...e power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 4210 UP Compressor overcurrent interruption Chart 1 of 2 Yes Yes Yes No No No Is the stop valve liquid gas fully open Is the power supply voltage normal Are they set properly Open the stop valve liquid gas fully Check the looseness disconnection or breakage of compressor wiring Ensure power supply from ...

Страница 65: ... Does it operate normally Check the DC fan motor Remove factor s causing the short cycle Replace the compressor Replace the outdoor power circuit board Replace the outdoor multi controller circuit board Check the operation of indoor outdoor fan motors Check for indoor outdoor short cycle Disconnect the compressor wiring from the outdoor power circuit board then check the voltage among each phases ...

Страница 66: ...Y model three phase four wire model Chart 1 of 2 6 3 7 8 No No No No No Yes Yes Yes Yes Yes Is there any abnormality on wirings Which sub code is displayed Does the DC bus voltage rise to approx 380 V at PAM driving Is there any abnormality on PAM wirings or reactor Is there any abnormality at the PAM circuit on the outdoor power circuit board Is there any abnormality at the PAM power supply circu...

Страница 67: ...r circuit board Defective outdoor power circuit board ON OFF 1 2 3 4 5 6 7 8 SW1 Setting Display on LED1 2 Unit 0 9999 V Is the outdoor unit V model or Y model The bus voltage can be displayed by an operation of SW1 on the outdoor multi controller circuit board Is the power supply normal Is the bus voltage normal Check the power supply facility Check the resistor connected to 52C relay and reactor...

Страница 68: ...sink temperature trouble TH8 temp resistance characteristic 0 C 180 kΩ 25 C 50 kΩ 50 C 17 kΩ 70 C 8 kΩ 90 C 4 kΩ No Yes No No Yes Yes No No Yes Yes Is 5110 displayed when restarted Does the fan rotate during compressor operation Is there any obstacle which blocks an airflow around the heat sink Is there any abnormality such as disconnection looseness or breakage Is the resistance normal Refer to t...

Страница 69: ...ing any connectors or replacing boards Diagnosis Remedy 4250 U6 Power module trouble Yes Yes No No Are they connected properly Is the check code 4250 still displayed Connect the compressor wiring U V and W phase properly then turn the power back ON Replace the outdoor power circuit board or the outdoor multi controller circuit board Defective outdoor power circuit board Replace the compressor Defe...

Страница 70: ...ntroller circuit board Replace the defective fan motor Connect the wiring connector properly Replace it in the case of breakage Replace the outdoor multi controller circuit board Malfunction of thermistor circuit No abnormality A connector contact failure is suspected Check the fuse on the outdoor multi controller circuit board Check the fan motor connector CNF1 and CNF2 for disconnection or loose...

Страница 71: ...01 U3 Compressor temperature thermistor TH4 open short The black square indicates a switch position Detected in outdoor unit No Yes Yes Yes No No Is there any abnormality such as disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace the connector in the case of breakage Replace the thermistor Replace t...

Страница 72: ... temperature thermistor TH6 open short The black square indicates a switch position Detected in outdoor unit No Yes Yes Yes No No Is there any abnormality such as disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in the case of breakage Replace the thermistor Replace the outdoor multi controller...

Страница 73: ...Outdoor liquid pipe temperature thermistor TH3 open short The black square indicates a switch position SW1 Setting ON OFF Display on LED1 2 Unit 99 9 999 9 C 4 1 2 5 6 7 8 3 No Yes Yes Yes No No Is there any abnormality such as disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in the case of bre...

Страница 74: ... 8 3 No Yes Yes Yes No No Is there any abnormality such as disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in the case of breakage Replace the thermistor Replace the outdoor multi controller circuit board Malfunction of thermistor circuit No abnormality A connector contact failure is suspected...

Страница 75: ...No Yes Yes Yes No No Is there any abnormality such as disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in the case of breakage Replace the thermistor Replace the outdoor multi controller circuit board Malfunction of thermistor circuit No abnormality A connector contact failure is suspected Chec...

Страница 76: ...g ON OFF Display on LED1 2 Unit 99 9 999 9 C 4 1 2 5 6 7 8 3 No Yes Yes Yes No No Yes No Is there any abnormality such as disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in the case of breakage Replace the thermistor Replace the outdoor multi controller circuit board Malfunction of thermistor ...

Страница 77: ...is of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy The black square indicates a switch position 63HS High pressure sensor SW1 Setting ON OFF Display on LED1 2 Unit 99 9 999 9 kgf F 4 1 2 5 6 7 8 3 For the pressure refer to 8 8 HOW TO CHECK THE COMPONENTS No Yes Yes No No Yes Is there any abnormality such as disconnectio...

Страница 78: ...F before connecting disconnecting any connectors or replacing boards Diagnosis Remedy The black square indicates a switch position 63LS Low pressure sensor No Yes Yes No No Is there any abnormality such as disconnection looseness or breakage Is the detected internal pressure normal Is the detected pressure normal Connect the wiring connector properly Replace it in the case of breakage Check the re...

Страница 79: ...g any connectors or replacing boards Diagnosis Remedy The black square indicates a switch position Yes Yes No Yes No Yes No No Is the power supply single phase Is there any abnormality such as a disconnection looseness or breakage The power supply voltage might be decreased or abnormal Check the power supply facility Connect the compressor wiring properly Replace the outdoor power circuit board ma...

Страница 80: ...r replacing boards Diagnosis Remedy 6600 A0 Duplex address error No Yes Yes No Is there any unit with the same address Does it operate normally Correct the address and turn the power OFF of indoor outdoor unit Fresh Master or Lossnay simultaneously for 2 minutes or more then turn the power back ON Malfunction of sending receiving circuit on indoor outdoor unit is suspected There is no abnormality ...

Страница 81: ...s of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 6602 A2 Transmission processor hardware error Yes Yes No No A wiring work was performed while the power OFF Does it operate normally If the wiring work was performed while the power ON turn the power OFF of indoor outdoor unit Fresh Master or Lossnay simultaneously for 2...

Страница 82: ...ransmission from to control system and centralized control system Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 6603 A3 Transmission bus BUSY error No Yes Yes Yes No No Is the transmission line miswired Is the transmission line miswired Does it operate normally Correct the wiring then turn the power back ON ...

Страница 83: ...sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 6606 A6 Signal communication error with transmission processor Yes No Does it operate normally Replace the controller Defect of error source controller There is no abnormality on the AC unit It might be caused by an external noise so check the transmission line to remove the factor s Turn...

Страница 84: ...Malfunction of sending receiving circuit on indoor outdoor unit 4 Disconnection of the connectors on the circuit board 3 The cause of displayed address and attribute is on the indoor unit side An abnormality detected by the remote controller if receiving no ACK when sending data from the remote controller to the indoor unit 1 While operating with multi refrigerant system indoor units an abnormalit...

Страница 85: ...ay side An abnormality detected by the indoor unit if receiving no ACK when the indoor unit transmit signal to the Lossnay 1 An abnormality is detected when the indoor unit transmits signal to Lossnay while the Lossnay is turned OFF 2 While the indoor unit is operating with the other refrigerant Lossnay an abnormality is detected when the indoor unit transmits signal to the Lossnay while the outdo...

Страница 86: ...hether the correct kind of transmission line is used or not Correct it within the tolerance then perform the procedure 1 Connect the transmission line properly then perform the procedure 1 Is the abnormality replicated Is it set properly There is no abnormality on the AC unit It might be caused by an external noise so check the transmission line to remove the factor s Set the address properly then...

Страница 87: ...belongs to Continued from the previous page Defective outdoor multi controller circuit board repeater circuit on the outdoor unit is suspected Replace the outdoor multi controller circuit board one by one then check for normal operation Delete the unnecessary address using a manual setting function on the remote controller Only for operating in a system with the Fresh Master Lossnay is connected o...

Страница 88: ...ards Diagnosis Remedy No response frame error Yes Yes Yes Yes No No No No Does it operate normally The transmission line is connected properly It is not exceeding the tolerance Is correct kind of transmission line used Replace the controller board Defect of the controller which the displayed address attribute belong to Connect the transmission line properly Correct it within the tolerance Replace ...

Страница 89: ...emote controller transmitting error caused by noise interference Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Is NG displayed Turn the power back ON No Is 6832 or ERC displayed No abnormality It might be caused by an external noise so check the transmission line Yes No Yes Chart 1 of 2 No No No Yes Yes No Y...

Страница 90: ...eive error Chart 2 of 2 No Yes Is the wiring connected properly meeting the condition Connect the wiring properly as specified in the chapter Electrical Work in the indoor unit Installation Manual Refer to the chapter Electrical Work Continued from the previous page No abnormality It might be caused by an external noise so check the transmission line to remove the factor s 90 OCH740 ...

Страница 91: ...ain sub setting Conduct the Remote Controller Diagnosis more than 2 times Is the check code 6832 or 6833 still displayed Is there only 1 remote controller set as the main controller Set one remote controller to main remote controller and the other to sub Disconnect and reconnect the connector CN3A then turn the power back ON Note It takes 6 seconds at maximum until the result is displayed No abnor...

Страница 92: ...d error Chart 2 of 2 No Yes No abnormality It might be caused by an external noise so check the transmission line to remove the factor s Is the wiring connected properly meeting the condition Connect the wiring properly as specified in the chapter Electrical Work in the indoor unit Installation Manual Refer to the chapter Electrical Work Continued from the previous page 92 OCH740 ...

Страница 93: ... 47 38 20 The model name code of the outdoor unit is registered wrongly Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 7100 EF Total capacity error No Yes Yes No No Yes Is it set properly Is it set properly Is the total under 130 of outdoor unit capacity Check the capacity code switch SW2 on the indoor contro...

Страница 94: ... connecting via branch box P15 to P100 model code 4 to 20 PWFY unit P100 model code 20 Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 7101 EF Capacity code error Yes No Is it set properly Set the switch properly The model code of the connected indoor unit can be displayed by an operation of SW1 on the outdoor...

Страница 95: ... or Hydrobox connect at least 1 indoor unit other than Air to Water unit 6 Connectable up to 1 PEFY P VMH E F Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 7102 EF Connecting excessive number of units and branch boxes Yes No No Yes Is an indoor unit connected Does it exceed the limit Connect indoor unit Conn...

Страница 96: ...ce the indoor controller board Check whether the indoor unit address is set in 00 or in the range of 01 to 50 Branch box Yes No Is the address setting correct Set the address properly then turn the power OFF of indoor outdoor unit Fresh Master Lossnay and remote controller simultaneously for 2 minutes or more and turn the power back ON Replace the branch box controller board Check whether the bran...

Страница 97: ...ay and remote controller simultaneously for 2 minutes or more and turn the power back ON Replace the M NET RC sub Check whether the M NET RC sub address is set in 000 or in the range of 151 to 200 Is the address setting correct Set the address properly then turn the power OFF of indoor outdoor unit Fresh Master Lossnay and remote controller simultaneously for 2 minutes or more and turn the power b...

Страница 98: ...re connecting disconnecting any connectors or replacing boards Diagnosis Remedy 7130 EF Incompatible unit combination error No Is the indoor unit authorized to connect with the outdoor unit Replace the indoor unit s to the connectable one Refer to the service manual of the outdoor unit or the connected indoor unit for the authorized combination Yes No Yes Check whether the model selection switch i...

Страница 99: ...are found with the remote controller Check other parts for problems E3 6832 There is noise on the transmission line or the indoor unit or another remote controller is faulty Check the transmission line and the other remote controllers NG ALL0 ALL1 Send receive circuit fault The remote controller needs replac ing ERC The number of data errors is the discrepancy between the number of bits in the dat...

Страница 100: ...remote controller some indoor units do not operate The power supply of the indoor unit is not on Wiring between indoor units in same group is not finished The indoor unit and Slim model are connected to same group The fuse on the indoor unit controller board is blown Check the part where the abnormality occurs 1 The entire system 2 In the entire refrigerant system 3 In same group only 4 1 indoor u...

Страница 101: ...emperature at thermostat ON Fan stops during heating operation Heat Defrost The fan stops during defrosting Fan does not stop while operation has been stopped Light out Fan runs for 1 minute after stopping to exhaust residual heat only in heating No setting of fan while start SW has been turned on Heat Standby Ultra low speed operation for 5 minutes after SW ON or until piping temperature reaches ...

Страница 102: ...door fan step Fixed to 10 Please refer to a section referring to the pumping down on outdoor units Installation Manuals It might not be possible to collect all the refrigerant if the amount is excessive 5 6 SW3 Trial operation 1 ON OFF from outdoor unit 1 ON OFF Any time after the power is turned ON Initial settings 2 Mode setting Heating Cooling SW4 SW8 Model Switch 1 6 MODEL SELECTION Before the...

Страница 103: ...f outdoor fan motor Enable Normal After turning the power ON 8 Initial settings To perform a test run for electrical parts alone without running the compressor Also to perform the troubleshooting of electrical parts without operating the outdoor unit s fan Make sure to connect the connectors to the compressor after checking the electrical parts Be careful not to get electrical shock while working ...

Страница 104: ...E Relay power supply F Procure locally G Max 10 m ON OFF SW1 Heating Cooling SW2 Validity of SW1 Invalidity of SW1 Silent Mode Demand Control CN3D 1 3 A C D E B G F CN3D X Y SW1 SW2 1 2 3 Y X A Remote control panel B Relay circuit C External input adapter PAC SC36NA E D Outdoor unit control board SW1 Switch SW2 Switch X Y Relay contact rating 0 1 A 15 VDC min applicable load 1 mA E Relay power sup...

Страница 105: ...Open Solenoid valve coil 4 way valve 21S4 Measure the resistance between the terminals with a multimeter At the ambient temperature 20 C Normal Abnormal 1725 172 5 Ω Open or short Motor for compressor MC W V U Measure the resistance between the terminals with a multimeter Winding temperature 20 C Normal Abnormal PUMY P VKM 0 305 0 015 Ω Open or short Solenoid valve coil Bypass valve SV1 Measure th...

Страница 106: ...ector and measure the resistance of connector pins Refer to 8 7 HOW TO CHECK THE PARTS Is the fan motor normal Yes No Replace the outdoor multi controller circuit board MULTI B Replace the outdoor multi controller circuit board MULTI B and the defective fan motor Correct the wiring Replace the defective fan motor Replace the defective fan motor Replace the outdoor multi controller circuit board Re...

Страница 107: ...7 2 Rt 7 465exp 4057 273 t 393 1 1 20 C 250 kΩ 30 C 160 kΩ 40 C 104 kΩ 50 C 70 kΩ 60 C 48 kΩ 70 C 34 kΩ 80 C 24 kΩ 90 C 17 5 kΩ 100 C 13 0 kΩ 110 C 9 8 kΩ High temperature thermistor Thermistor Compressor TH4 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Temperature C Resistance kΩ 500 400 300 200 100 0 25 50 75 100 120 Temperature C Resistance kΩ 0 C 180 kΩ 25 C 50 kΩ 50 C 17 kΩ 70 C 8 kΩ 90 C 4 kΩ The...

Страница 108: ...ressure on the self diagnosis LED1 2 1 When the pressure displayed on self diagnosis LED1 2 is between 0 and 0 098 MPaG 14 PSIG the high pressure sen sor has a problem 2 When the pressure displayed on self diagnosis LED1 2 is approximately 5 0 MPaG 725 PSIG the control board has a problem 4 Remove the high pressure sensor from the control board and short circuit between the pin 2 and pin 3 connect...

Страница 109: ...n the self diagnosis LED1 2 is between 0 and 0 098 MPaG 14 PSIG the low pressure sensor has a problem 2 When the pressure displayed on self diagnosis LED1 2 is approximately 1 7 MPaG 247 PSIG the control board has a problem 4 Remove the low pressure sensor from the control board and short circuit between the pin 2 and pin 3 connectors 63LS to check the pressure with the self diagnosis LED1 2 1 Whe...

Страница 110: ...me as CNF1 2 6 4 CNF1 2 Connect to fan motors 1 4 310 340 VDC Y 310 380 VDC V 5 4 15 VDC 6 4 0 6 5 VDC 7 4 15 VDC when stopped 0 15 VDC pulse when operated VDC TEST POINT1 Voltage between pins of C510 310 340 VDC Y 310 380 VDC V Same as CNF1 2 1 4 VFG TEST POINT4 Voltage between pin3 and pin4 of PC511 or PC512 Correspond to CNF1 2 7 4 TH4 Thermistor Compressor TH7 TH6 Thermistor Ambient Suction pi...

Страница 111: ...5 VDC 3 4 15 VDC 6 5 15 VDC 7 5 15 VDC CN4 Connect to the out door multi controller circuit board CN4 CN6 Thermistor TH8 CNAC2 220 240 VAC Connect to the out door multi controller circuit board CNAC TB1B TB3B TB2B TB1A TB2A TB3A Connect to DCL El E2 E3 E4 Connect to the electrical parts box Brief Check of POWER MODULE If they are short circuited it means that they are broken Measure the resistance...

Страница 112: ... to the outdoor multi controller circuit board CN102 1 2 24 30 VDC 3 4 24 30 VDC CN1 Connect to the outdoor noise filter circuit board CNAC1 Y Connect to the outdoor power circuit board CNAC1 V 1 3 220 240 VAC TB1 Connect to the electrical parts box ...

Страница 113: ...r fan rotation frequency abnormality delay TH7 abnormality delay TH8 abnormality delay Display all abnormalities remaining in abnormality delay 9 10010000 Abnormality delay history 2 Heat sink overheating delay Compressor over current interception delay Voltage abnormality delay Insufficient refrigerant amount abnormality delay Current sensor primary current abnormality delay 63LS abnormality dela...

Страница 114: ...decrease prevention Min Sj correction depends on Td Min Sj correction depends on Shd LEV opening correction depends on Pd LEV opening correction depends on Td Correction of high compression ratio prevention Display active LEV control 47 11110100 State of compressor frequency control 1 Condensing temperature limit control Compressor temperature control Discharge temp heating backup control Pd abnor...

Страница 115: ...ncy 0 255 Hz Display of actual operating frequency 65 10000010 Target frequency 0 255 Hz Display of target frequency 66 01000010 Outdoor fan control step number 0 15 Display of number of outdoor fan control steps target 69 10100010 IC1 LEV Opening pulse 0 2000 pulse Display of opening pulse of indoor LEV 70 01100010 IC2 LEV Opening pulse 71 11100010 IC3 LEV Opening pulse 72 00010010 IC4 LEV Openin...

Страница 116: ...Target indoor SC SH IC1 SCm SHm 0 0 20 0 ºC 109 10110110 Target indoor SC SH IC2 110 01110110 Target indoor SC SH IC3 111 11110110 Target indoor SC SH IC4 112 00001110 Target indoor SC SH IC5 113 10001110 Indoor unit check status IC9 12 No 9 unit check No 10 unit check No 11 unit check No 12 unit check Light on at time of abnormality 114 01001110 Indoor unit operation mode IC9 12 No 9 unit mode No...

Страница 117: ...h pressure sensor all thermistors and SC SH at time of abnormality delay 137 10010001 TH4 Compressor sensor data at time of abnormality delay 99 9 999 9 ºC 138 01010001 TH6 Suction pipe sensor data at time of abnormality delay 139 11010001 TH3 Outdoor liquid pipe sensor data at time of abnormality delay 140 00110001 TH8 Heat sink sensor data at time of abnormality delay C 141 10110001 OC SC coolin...

Страница 118: ...During heating subcool SC During cooling superheat SH Fixed to 0 during cooling operation Display of indoor SC SH data 164 00100101 IC10 SC SH 165 10100101 IC11 SC SH 166 01100101 IC12 SC SH 170 01010101 ROM version monitor 0 00 99 99 ver Display of version data of ROM 171 11010101 ROM type Display of ROM type 172 00110101 Check sum mode 0000 FFFF Display of check sum code of ROM 173 10110101 IC9 ...

Страница 119: ...at time of abnormality 203 11010011 TH3 Outdoor liquid pipe sensor data at time of abnormality 204 00110011 TH8 Heat sink sensor data at time of abnormality 205 10110011 OC SC cooling at time of abnormality 99 9 999 9 ºC During heating subcool SC During cooling superheat SH Fixed to 0 during cooling operation Display of indoor SC SH data at time of abnormality 206 01110011 IC1 SC SH at time of abn...

Страница 120: ...opening pulse abnormality delay 237 10110111 IC8 LEV opening pulse abnormality delay 238 01110111 IC6 SC SH at time of abnormality delay 99 9 999 9 ºC During heating subcool SC During cooling superheat SH Fixed to 0 during cooling operation Display of indoor SC SH data at time of abnormality delay 239 11110111 IC7 SC SH at time of abnormality delay 240 00001111 IC8 SC SH at time of abnormality del...

Страница 121: ...ize should be 1 rank thicker consideration of voltage drops Make sure the power supply voltage does not drop more than 10 4 Specific wiring requirements should adhere to the wiring regulations of the region 5 Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord design 60245 IEC57 For example use wiring such as YZW 6 Install an e...

Страница 122: ... V 60 Hz A Switch Breakers for Wiring and Current Leakage B Outdoor Unit C Branch Box D A Control Indoor Unit E M NET Control Indoor unit F Pull Box D D N 220 230 240 V 50 Hz N 220 V 60 Hz L N A B A L N S1 S2 S3 S1 S2 S3 S1 S2 S3 C D D L N S1 S2 S3 S1 S2 S3 S1 S2 S3 C D E L N N 220 230 240 V 50 Hz N 220 V 60 Hz F L N A B D D D D L N S1 S2 S3 S1 S2 S3 S1 S2 S3 C L N S1 S2 S3 S1 S2 S3 S1 S2 S3 C D E...

Страница 123: ...Y GE VA MSY EF VA MSZ FH VA MSY GH VA MSZ FK VA MSZ GC NA MSZ EF VG E1 6 8 Type 6 Branch box PAC MK BC 5 1 3 0 Type 7 ecodan Cylinder unit Hydrobox 5 0 4 4 This value may increase due to a locally connected actuator Connect to Connection kit PAC LV11M J Indoor unit V1 V2 Type 8 MFZ KJ VE2 MSZ LN VG MSZ AP VG D MSZ AP VF MSZ EF VG E2 MSZ EF VGK E1 MSZ AP VGK MFZ KT VG MSZ LN VG2 7 4 2 4 Type 9 MSZ ...

Страница 124: ...remote control cable Shielding wire 2 core CVVS CPEVS or MVVS Cable diameter 0 5 to 1 25 mm2 Remarks When 10 m is exceeded use a cable with the same specifications as transmission line wiring 3 MA Remote control cables Type of remote control cable Sheathed 2 core cable unshielded CVV Cable diameter 0 3 to 1 25 mm2 0 75 to 1 25 mm2 Remarks Within 200 m Connected with simple remote controller 9 4 2 ...

Страница 125: ... Example of system when using an M NET controller When power is supplied separately Transmission cable CITY MULTI series indoor unit CITY MULTI series indoor unit CITY MULTI series indoor unit MA RC MA RC Branch Box A control indoor unit MA RC A control indoor unit MA RC A control indoor unit MA RC 0 3 1 25 mm2 0 75 1 25 mm2 MA RC cable Outdoor unit Pull box MA RC Breaker for Wiring and Current Le...

Страница 126: ...ollowing formulas to calculate the electrical characteristics before applying for a capacity agreement with the local electric power company 9 7 1 Obtaining the electrical characteristics of CITY MULTI series system 1 Procedure for obtaining total power consumption The power consumption of the outdoor unit will vary depending on the total capacity of the selected indoor units 2 Method of obtaining...

Страница 127: ...or the CONNECTION KIT when selecting the pipe size and piping length Additional refrigerant charge Refrigerant for the extended piping is not included in the outdoor unit when the unit is shipped from the factory Therefore charge each refrigerant piping system with additional refrigerant at the installation site In addition in order to carry out service enter the size and length of each liquid pip...

Страница 128: ...omprises sets for use with liquid pipes and for use with gas pipes Branch header 4 branches Branch header 8 branches CMY Y64 G E CMY Y68 G E Select Each Section of Refrigerant Piping 1 Section From Outdoor Unit to First Branch A Each Section of Piping 2 Sections From Branch to Indoor Unit a b c d Select the size from the table to the right 1 Refrigerant Piping Diameter In Section From Outdoor Unit...

Страница 129: ...rom the table below The kit comprises sets for use with liquid pipes and for use with gas pipes Branch Joint Branch Header 4 branches Branch Header 8 branches CMY Y62 G E CMY Y64 G E CMY Y68 G E Select Each Section of Refrigerant Piping 1 Section From Outdoor Unit to First Branch A Each Section of Piping 2 Sections From Branch to Indoor Unit a b c d e 3 Section From Branch to Branch B C Select the...

Страница 130: ...to 100 ø9 52 ø15 88 Additional refrigerant charge Refrigerant for the extended piping is not included in the outdoor unit when the unit is shipped from the factory Therefore charge each refrigerant piping system with additional refrigerant at the installation site In addition in order to carry out service enter the size and length of each liquid pipe and additional refrigerant charge amounts in th...

Страница 131: ...m piping length is 150 m Selecting the Refrigerant Branch Kit Please select branching kit which is sold separately from the table below The kit comprises sets for use with liquid pipes and for use with gas pipes Branch header 4 branches Branch header 8 branches CMY Y64 G E CMY Y68 G E Select Each Section of Refrigerant Piping 1 Section From Outdoor Unit to Branch box or Branch header A to E Each S...

Страница 132: ...r hydrobox is connected the maximum piping length is 150 m Selecting the Refrigerant Branch Kit Please select branching kit which is sold separately from the table below The kit comprises sets for use with liquid pipes and for use with gas pipes Branch header 4 branches Branch header 8 branches CMY Y64 G E CMY Y68 G E Select Each Section of Refrigerant Piping 1 Section From Outdoor Unit to Branch ...

Страница 133: ...te room volumes m3 and find the room with the smallest volume The part with represents the room with the smallest volume If the calculation results do not exceed the maximum concentration perform the same calculation for larger rooms until it has been determined that nowhere exceeds the maximum concentration Indoor unit All refrigerant of this system will leak out to this room if there is leakage ...

Страница 134: ...from outdoor multi controller circuit board Diagram symbol in the connector housing Fan motor CNF1 CNF2 Thermistor HIC pipe TH2 Thermistor Outdoor liquid pipe TH3 Thermistor Compressor TH4 Thermistor Suction pipe Ambient TH6 7 High pressure switch 63H High pressure sensor 63HS Low pressure sensor 63LS 4 way valve 21S4 Bypass valve SV1 Pull out the disconnected wire from the electrical parts box 5 ...

Страница 135: ...er Refer to procedure No 5 below to remove thermistor Ambient TH7 Photo 6 Photo 7 5 Removing the thermistor Ambient TH7 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connector TH7 red on the outdoor multi controller circuit board in the electrical parts box 4 Loosen the wire clamps on top of the electrical parts box See Photo 6 5 Pull out the thermistor...

Страница 136: ...nd 4 ball valve and stop valve fixing screws 5 16 and then remove the valve bed See Photo 4 and 7 5 Remove 2 cover panel fixing screws 5 x 12 then slide the cover panel front upward to remove it The cover panel front is fixed to the cover panel rear with a hook on the rear side See Photo 4 6 Remove the cover panel rear fixing screws 2 for right side and 2 for rear 5 x 12 then slide the cover panel...

Страница 137: ...ating 100 C or more then braze the pipes so that the inside of pipes are not oxidized Photo 12 11 Removing the low pressure sensor 63LS and high pressure sensor 63HS 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove the cover panel front Refer to procedure 8 5 4 Remove the cover panel rear Refer to procedure 8 6 5 Remove the side panel R Refer to procedure 8 7 6 Di...

Страница 138: ...d outlet and then remove the compressor Note Recover refrigerant without spreading it in the air Photo 13 Figure 1 14 Removing the accumulator 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 2 front cover panel fixing screws 5 12 and remove the front cover panel See Photo 4 4 Remove 4 back cover panel fixing screws 5 12 and remove the back cover panel 5 Remove th...

Страница 139: ...reactor DCL 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove the electrical parts box See Photo 5 4 Remove 6 screws 4 x 10 for reactor to remove the reactors See Figure 3 Figure 3 Reactors Screws for reactors 139 OCH740 ...

Страница 140: ...ht 2020 MITSUBISHI ELECTRIC CORPORATION Published Jun 2020 No OCH740 Made in Japan Specifications are subject to change without notice HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO100 8310 JAPAN ...

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