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TECHNICAL & SERVICE MANUAL

OUTDOOR UNIT

HFC

utilized

R410A

Model name

indication

PARTS CATALOG (OCB675)

CONTENTS

  TECHNICAL CHANGES .........................................2
  1. SAFETY PRECAUTION .....................................3
  2. OVERVIEW OF UNITS .......................................6
  3. SPECIFICATIONS ............................................10
  4. DATA .................................................................11
  5. OUTLINES AND DIMENSIONS .......................19
  6. WIRING DIAGRAM ...........................................21
7. NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION .......23
  8. TROUBLESHOOTING ......................................41
  9. ELECTRICAL WIRING ...................................117
10. REFRIGERANT PIPING TASKS ....................123
11. DISASSEMBLY PROCEDURE .......................130

Note:

• This service manual describes

technical data of the outdoor

units only.

No. OCH675

REVISED EDITION-E

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

June 2020

OCH675 REVISED EDITION-D

is void.

Revision:

• PUMY-P200YKM2R2,

PUMY-P200YKM2-ETR2,

PUMY-P200YKM2-ERR2,

PUMY-P200YKM2-BSR2,

PUMY-P200YKM2-ETBSR2 and

PUMY-P200YKM2-ERBSR2

have neen added in REVISED

EDITION-E.

• Some descriptions have been

modified.

<Outdoor unit>

[Model Name]

PUMY-P200YKM2

PUMY-P200YKM2

PUMY-P200YKM2R1

PUMY-P200YKM2R2

PUMY-P200YKM2-ETR2

PUMY-P200YKM2-ERR2
PUMY-P200YKM2-BS

PUMY-P200YKM2R1-BS

PUMY-P200YKM2-BSR2

PUMY-P200YKM2-ETBSR2

PUMY-P200YKM2-ERBSR2

[Service Ref.]

Salt proof model

PUMY-P200YKM2-BS

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Содержание PUMY-P200YKM2-BS

Страница 1: ...ual describes technical data of the outdoor units only No OCH675 REVISED EDITION E SPLIT TYPE HEAT PUMP AIR CONDITIONERS June 2020 OCH675 REVISED EDITION D is void Revision PUMY P200YKM2R2 PUMY P200YKM2 ETR2 PUMY P200YKM2 ERR2 PUMY P200YKM2 BSR2 PUMY P200YKM2 ETBSR2 and PUMY P200YKM2 ERBSR2 have neen added in REVISED EDITION E Some descriptions have been modified Outdoor unit Model Name PUMY P200Y...

Страница 2: ...S PUMY P200YKM2 PUMY P200YKM2R1 PUMY P200YKM2 BS PUMY P200YKM2R1 BS PUMY P200YKM2R1 PUMY P200YKM2R2 PUMY P200YKM2R1 BS PUMY P200YKM BSR2 Some connectable indoor units have been added Some connectable indoor units have been added ...

Страница 3: ...gerant 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 packa...

Страница 4: ... 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 wa...

Страница 5: ...0 3 8 9 52 22 0 22 0 1 2 12 70 26 0 24 0 5 8 15 88 29 0 27 0 3 4 19 05 36 0 3 Tools for R410A The following table shows whether conventional tools can be used or not Tools and materials Use R410A tools Can R22 tools be used Can R407C tools be used Gauge manifold Air purge refrigerant charge and operation check Tool exclusive for R410A Charge hose Tool exclusive for R410A Gas leak detector Gas leak...

Страница 6: ...VMA L A 32VLM E 32VLEM E 32VKM E2 32VCM E 32VLRM E 32VLRMM E 40 40VFM E1 40VEM E 40VEM E 40VLMD E 40VBM E 40VMS1 L E 40VMA L E 40VMA L E 2 3 40VMA3 E 4 40VMHS E 40VMA L A 40VLM E 40VKM E 40VLEM E 40VKM E2 40VCM E 40VLRM E 40VLRMM E M series indoor unit 3 MSZ EF VE VG K series MSZ SF VA VE series MSZ FH VE series MFZ KJ VE series MFZ KT VG series MSZ LN VG 2 series MSZ AP VG K series MSZ AP VF seri...

Страница 7: ...100 100JA L Q 100JA L 100KAQ 100KA 100EA Note1 The lineup of a connectable indoor unit depends on a district areas country Note2 Only for R1 R2 models MSZ EF VG MSZ AP VG PLA M EA Only for R2 models MSZ LN VG2 MSZ AP VGK MSZ EF VGK MFZ KT VG Outdoor unit 8HP PUMY P200YKM2 PUMY P200YKM2 BS Applicable indoor unit Capacity kW unit Type 15 to Type 100 Number of units 2 to 8 units Total system capacity...

Страница 8: ...f the units that can be connected to each branch box is 20 2 kW Branching pipe components CMY Y62 G E CMY Y64 G E CMY Y68 G E Branch box Number of branches PAC MK54BC PAC MK34BC Branch header 2 branches Branch header 4 branches Branch header 8 branches 5 branches MAX 5 units 3 branches MAX 3 units CITY MULTI indoor units 2 M series S series P series indoor units 2 MA remote controller MA remote co...

Страница 9: ...intake air temperature D B 5 to 52 C 1 W B 20 to 15 C Notes D B Dry Bulb Temperature W B Wet Bulb Temperature 1 10 to 52 C D B When connecting PKFY P10 15 20 25 32VLM PFFY P20 25 32VKM PFFY P20 25 32VCM PFFY P20 25 32VLEM PFFY P20 25 32VLRM M PEFY P40 63VMA3 E and M series S series and P series type indoor unit When connecting fresh air type indoor unit Only P200 PEFY P VMH E F Cooling Heating Ind...

Страница 10: ... 8 1 1 External dimension HxWxD mm 1 338 1 050 330 40 inch 52 11 16 41 11 32 13 1 10 16 Protection devices High pressure protection High pressure Switch Inverter circuit COMP FAN Overcurrent detection Overheat detection Heat sink thermistor Compressor Compressor thermistor Over current detection Fan motor Overheating Voltage protection Refrigerant Type original charge R410A 7 3 kg Control Linear E...

Страница 11: ... 0 91 19 6 kW 6 Determination of Maximum System Capacity Comparison of Capacity between Total Indoor Units Capacity CTi and Total Outdoor Unit Capacity CTo CTi 19 8 CTo 19 6 thus select CTo CTx CTo 19 6 kW 7 Comparison with Essential Load Against the essential load 19 4kW the maximum system capacity is 19 6 kW Proper outdoor units have been selected 8 Calculation of Maximum Indoor Unit Capacity of...

Страница 12: ...or Unit Rating Outdoor Design Temperature Correction Piping Length Correction Defrost Correction 25 0 1 00 0 98 0 89 21 8 kW 6 Determination of Maximum System Capacity Comparison of Capacity between Total Indoor Units Capacity CTi and Total Outdoor Unit Capacity CTo CTi 20 6 CTo 21 8 thus select CTi CTx CTi 20 6 kW 7 Comparison with Essential Load Against the essential load 20 4kW the maximum syst...

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: ...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 capacity only...

Страница 15: ... 0 5 0 10 0 15 0 20 0 25 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 24 0 26 0 28 0 30 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 24 0 26 0 28 0 30 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 24 0 26 0 28 0 30 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 0 0 2 0 4 0 6 0 8 0 10 0 12 0 380V 400V 415V Capacity kW Total capacity of indoor units kW Total capacity of indoor units kW Inp...

Страница 16: ...18 0 20 0 22 0 24 0 26 0 28 0 30 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 24 0 26 0 28 0 30 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 0 0 2 0 4 0 6 0 8 0 10 0 12 0 0 0 5 0 10 0 15 0 20 0 25 0 30 0 380V 400V 415V Capacity kW Total capacity of indoor units kW Total capacity of indoor units kW Input kW Current A Total capacity of indoor units kW Heating ...

Страница 17: ...ngth of piping to farthest indoor unit 0 3 number of bends in the piping m 4 4 1 Correction of Heating Capacity for Frost and Defrosting If heating capacity has been reduced due to frost formation or defrosting multiply the capacity by the appropriate correction factor from the following table to obtain the actual heating capacity Correction factor diagram 1 Capacity Correction Curve Outdoor Intak...

Страница 18: ...20 C Outdoor 35 C 7 C 6 C Indoor unit No of connected units Unit 8 No of units in operation 8 Model 25 7 50 1 Piping Main pipe m 5 Branch pipe 2 5 Total pipe length 25 Fan speed Hi Amount of refrigerant kg 11 0 Outdoor unit Electric current A 10 03 9 89 Voltage V 400 Compressor frequency Hz 71 86 LEV opening Indoor unit Pulse 220 300 Pressure High pressure Low pressure MPa 2 98 0 93 2 18 0 60 Temp...

Страница 19: ...19 OCH675E 5 OUTLINES AND DIMENSIONS Unit mm PUMY P200YKM2 PUMY P200YKM2R1 PUMY P200YKM2 BS PUMY P200YKM2R1 BS ...

Страница 20: ...20 OCH675E PUMY P200YKM2R2 PUMY P200YKM2 ETR2 PUMY P200YKM2 ETBSR2 PUMY P200YKM2 BSR2 PUMY P200YKM2 ETBSR2 PUMY P200YKM2 ERBSR2 Unit mm ...

Страница 21: ...21 OCH675E PUMY P200YKM2 PUMY P200YKM2R1 PUMY P200YKM2 BS PUMY P200YKM2R1 BS 6 WIRING DIAGRAM ...

Страница 22: ...22 OCH675E PUMY P200YKM2R2 PUMY P200YKM2 ETR2 PUMY P200YKM2 ERR2 PUMY P200YKM2 BSR2 PUMY P200YKM2 ETBSR2 PUMY P200YKM2 ERBSR2 ...

Страница 23: ... 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 CITY MULTI Indoor unit 013 CITY MULTI Indoor unit 014 CITY MULTI In...

Страница 24: ...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 25: ...e 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 o...

Страница 26: ...trainer Strainer Strainer Capillary tube LEV B Strainer Strainer Service port Refrigerant liquid pipe Stop valve Strainer Strainer Note When connecting the CONNECTION KIT PAC LV11M J and an M series indoor unit refer to the installation manual for the CONNECTION KIT Refrigerant piping specifications dimensions of flared connector Item Capacity Liquid piping Gas piping Indoor unit P10 15 20 25 32 4...

Страница 27: ...rectly to the branch box side L 20 m ø12 7 Gas mm ø19 05 L The farthest piping length for the main pipes from the outdoor unit to the branch box The line up of a connectable indoor unit depends on a district areas country Pipe size Branch box Indoor unit Case of M series or S series indoor unit Indoor unit type kW 42 50 60 71 Pipe size ømm Liquid ø6 35 ø6 35 ø9 52 Gas ø9 52 ø12 7 ø15 88 ø15 88 Pip...

Страница 28: ...ory If it is used a gas leakage or even a pipe extraction may occur 2 branch joint CMY Y62 G E 4 branch header CMY Y64 G E 8 branch header CMY Y68 G E Different diameter joint optional parts Model name Connected pipes diameter Diameter A Diameter B mm mm mm MAC A454JP E ø9 52 ø12 7 ø9 52 ø12 7 MAC A455JP E ø12 7 ø9 52 ø12 7 ø9 52 MAC A456JP E ø12 7 ø15 88 ø12 7 ø15 88 PAC 493PI ø6 35 ø9 52 ø6 35 ø...

Страница 29: ... A B A B A B A B M NET RC M NET RC M NET RC M NET RC Using 2 remote controllers for each 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 controller M NET RC 101 to ...

Страница 30: ...M2 S M1M2 S M1M2 S 1 2 M1M2 S A B Same as above Use the indoor unit M IC address plus 150 as the sub remote controller address In this case it should be 152 3 or more remote controllers RC cannot be connected to 1 indoor unit Same as above The remote controller address is the indoor unit main address plus 100 In this case it should be 101 Name Symbol Maximum units for connection Outdoor unit OC In...

Страница 31: ... has the most 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 MULTI controller circuit board f The earth processing of S terminal for the centralized control terminal block TB7 is ...

Страница 32: ...B5 M NET RC 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 conn...

Страница 33: ... 2 M1M2 S 1 2 M1M2 S A B A B A B Using 2 remote controllers for each indoor unit a The same as above 1 a b The same as above 1 b c I n 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 remote con trollers Set either one of the MA remote controllers to sub remote controller Refer to the insta...

Страница 34: ...RC MA RC MA RC 1 2 M1M2 S M1M2 S M1M2 S A B A B A B A B 1 2 M1M2 S NO A B Longest transmission cable length L1 L2 200m 1 25 mm MA remote controller cable length R6 R7 200 m 0 3 to 1 25 mm NO MA RC 00 M IC 00 OC MA RC 00 M IC TB5 1 2 TB15 A B M1M2 TB3 S TB7 TB5 TB15 M1M2 S M1M2 S 1 2 M1M2 S A B The MA remote controller and the M NET remote controller cannot be used together with the indoor unit of ...

Страница 35: ...f the indoor unit M IC c Connect terminals 1 and 2 on the terminal block for MA remote controller line TB15 on the indoor unit IC to the terminal 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 MULTI controller circui...

Страница 36: ...s example A B 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 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 D NO NO MA RC MA RC Never connect together the ter...

Страница 37: ...terminals 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 NO...

Страница 38: ...C 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 RC A IC A IC A IC A IC A IC A IC A IC TB5 TB15 TB5...

Страница 39: ...of 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...

Страница 40: ...C 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 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 Supply U...

Страница 41: ...r 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 Te...

Страница 42: ...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 stop automatically after 2 hours The function is available only for the model with vanes Test run operation A...

Страница 43: ...ouble Check delay code 1400 UH 5300 Primary current error Check delay code 4310 A0 6600 Duplex address error Only M NET Remote controller is detected A2 6602 Transmission processor hardware error Only M NET Remote controller is detected A3 6603 Transmission bus BUSY error Only M NET Remote controller is detected A6 6606 Signal communication error with transmission processor Only M NET Remote contr...

Страница 44: ...ng boards Diagnosis Remedy Serial communication error 0403 Ed No No Yes Yes 44 OCH675E 8 1 3 SELF DIAGNOSIS ACTION BY FLOWCHART 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 Check the wiring Connect the CN2 and CN4 properly Replace them in the case of breakage Connect the wirin...

Страница 45: ...t shortage while in heating operation 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 ed 1102 U2 Compressor temperature trouble Yes Yes No Yes Yes No No No 45 OCH675E Is 5101 displayed when restarted Is the outdoor stop valve liq...

Страница 46: ...ontinued from the previous 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 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 ther...

Страница 47: ... 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 controller board ...

Страница 48: ...d Clean the 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 Contin...

Страница 49: ...or burning Replace the indoor controller board Check the resistance of SV1 Chart 3 of 4 For the voltage refer to 8 8 HOW TO CHECK THE COMPONENTS No No Yes Yes Yes 49 OCH675E Continued from the previous page 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 Check the voltage...

Страница 50: ... 50 OCH675E For the voltage refer to 8 8 HOW TO CHECK THE COMPONENTS Continued from the previous page Is the voltage detected Replace the SV1 Replace the 63HS Replace the outdoor multi controller circuit board Yes No Is the connector for outdoor multi controller circuit board 63H disconnected or loose Reconnect the connector or connect it tightly Check the 63HS voltage Is the resistance detected Y...

Страница 51: ...er 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 32 F 700 k 10 50 F 410 k 20 68 F 250 k 30 86 F 160 k 40 104 F 104 k No Yes No Yes No Yes 51 OCH675E Is the TH4 wiring disconne...

Страница 52: ...ance detected Replace the indoor LEV No No Yes Yes No Yes 52 OCH675E 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 controller board Check the voltage and appearance of the indoor controller board Check the 63HS voltage For the voltage refer ...

Страница 53: ...ve thermistor Defective outdoor controller 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 Chart 1 of 2 Yes No No No No Yes ...

Страница 54: ...54 OCH675E Continued from 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 controller 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 controller board Disconnect the indoor L...

Страница 55: ...losed Malfunction of outdoor LEV LEV A blockage TH21 Indoor intake temperature thermistor RT11 or TH1 TH22 Indoor liquid pipe temperature thermistor RT13 or TH2 TH23 Branch box 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 Is the outdoor ...

Страница 56: ...V in branch box or indoor unit Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 1503 P6 Freeze protection of branch box or indoor unit No Yes Connect the piping and wiring to the same port No Connect the LEV wiring to the intended port properly Check the port which the piping and wiring between the indoor unit ...

Страница 57: ...erature thermistor RT11 or TH1 TH22 Indoor liquid pipe temperature thermistor RT13 or TH2 TH23 Branch box gas pipe temperature thermistor TH A to E Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Is the connector for outdoor multi controller circuit board or 4 way valve coil disconnected or loose Reconnect the...

Страница 58: ...e connecting disconnecting any connectors or replacing boards Diagnosis Remedy 4100 UF Compressor current interruption Locked compressor Chart 1 of 2 Yes Yes Yes No No No 58 OCH675E Is the stop valve liquid gas fully open Is the power supply voltage normal Is it connected properly Open the stop valve liquid gas fully Ensure power supply from the facility Connect the wiring properly then turn the p...

Страница 59: ...lacing boards Diagnosis Remedy Chart 2 of 2 Yes Yes No No 59 OCH675E Are they set properly Is the compressor faultily grounded Set the model selection switch correctly then restart Replace the compressor Defective compressor Replace the outdoor power board Defective outdoor power board Check whether the compressor is faultily grounded or not Continued from the previous page ...

Страница 60: ...oard Diagnosis of defects Make sure to turn the 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 60 OCH675E 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 power supply facility che...

Страница 61: ...normally Are those units short cycled Are the voltage among the phases U V V W and W U different Does it operate normally Check the DC fan motor Remove factor s causing the short cycle Replace the compressor Replace the outdoor power board Complete Check the operation of indoor outdoor fan motors Check for indoor outdoor short cycle Disconnect the compressor wiring from the outdoor power board the...

Страница 62: ...ring c Disconnection of terminal block for power supply d Disconnection of noise filter circuit board e Disconnection of power circuit board f Disconnection of CN52C V model only g Disconnection of CN5 Y model only h Disconnection of CN2 Check the power supply facility Correct the wiring Replace the reactor if it is broken Replace the outdoor power circuit board defective outdoor power board Repla...

Страница 63: ...power 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 Replace it if the resistor is broken Replace the outdoor power circuit board if the resistor is not broken Operate the unit and check if the problem occurs again Check the bus voltage read by the microprocessor with an operation of SW1 on th...

Страница 64: ...emperature trouble TH8 temp resistance characteristic 0 32 F 180 kΩ 25 77 F 50 kΩ 50 122 F 17 kΩ 70 158 F 8 kΩ 90 194 F 4 kΩ No Yes No No Yes Yes No No Yes Yes 64 OCH675E 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 resis...

Страница 65: ...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 66: ...tion looseness or breakage Is the voltage normal Replace the outdoor multi controller 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 Replace the defective fan motor Check the fuse on the outdoor multi controller circuit board Check the fan mot...

Страница 67: ...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 67 OCH675E 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 thermisto...

Страница 68: ...mperature thermistor TH6 open short The black square indicates a switch position Detected in outdoor unit 5102 U4 No Yes Yes Yes No No 68 OCH675E 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 ...

Страница 69: ...5 U4 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 4 1 2 5 6 7 8 3 C No Yes Yes Yes No No 69 OCH675E 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...

Страница 70: ... 1 2 5 6 7 8 3 C No Yes Yes Yes No No 70 OCH675E 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 conta...

Страница 71: ...ion No Yes Yes Yes No No 71 OCH675E 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...

Страница 72: ...9 C No Yes Yes Yes No No Yes No 72 OCH675E 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 fai...

Страница 73: ... board Diagnosis 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 PSIG 4 1 2 5 6 7 8 3 No Yes Yes Yes No No 73 OCH675E For the pressure refer to 8 8 HOW TO CHECK THE COMPONENTS Is there any ab...

Страница 74: ...he power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy h The black square indicates a switch position 63LS Low pressure sensor No Yes Yes Yes No No 74 OCH675E 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 c...

Страница 75: ...g any connectors or replacing boards Diagnosis Remedy Applicable only for V model Model Error detecting condition V model 34A or more for 10 consecutive seconds or 38A or more No No Yes Yes 75 OCH675E Does it satisfy the condition 1 in the lower right Is there any abnormality such as disconnection or looseness The power supply voltage is decreased or abnormal Check the power supply facility Connec...

Страница 76: ...s or replacing boards Diagnosis Remedy 6600 A0 Duplex address error No Yes Yes No 76 OCH675E 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 n...

Страница 77: ...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 77 OCH675E 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 simultane...

Страница 78: ...ansmission 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 78 OCH675E Is the transmission line miswired Is the transmission line miswired Does it operate normally Correct the wiring then turn the powe...

Страница 79: ...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 79 OCH675E 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 fa...

Страница 80: ...ceiving circuit on indoor outdoor unit 4 Disconnection of the connectors on the circuit board 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 While operating with multi refrigerant system indoor units an abnormality is detected when the indoor...

Страница 81: ...abnormality detected by the indoor unit if receiving no ACK when the indoor unit transmit signal to the Lossnay An abnormality is detected when the indoor unit transmits signal to Lossnay while the Lossnay is turned OFF 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 outdoor unit with th...

Страница 82: ...not Check whether 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 pr...

Страница 83: ...played address attribute belongs to Continued from the previous page Defective outdoor controller board repeater circuit on the outdoor unit is suspected Replace the outdoor controller 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 or i...

Страница 84: ...lacing boards Diagnosis Remedy No response frame error Yes Yes Yes Yes No No No No 84 OCH675E 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 th...

Страница 85: ...t Remote 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 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 Yes Yes 85 OCH675E Is...

Страница 86: ...receive error Chart 2 of 2 No abnormality It might be caused by an external noise so check the transmission line to remove the factor s No Yes 86 OCH675E 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 ...

Страница 87: ... to sub Note It takes 6 seconds at maximum until the result is displayed No abnormality A connector or wiring contact failure is suspected Yes Continue to the next page No No abnormality It might be caused by an external noise so check the transmission line Yes No Yes No Yes Yes No Replace the remote controller Replace the indoor controller board with the LED2 is blinking Yes 87 OCH675E Check the ...

Страница 88: ... send error Chart 2 of 2 No abnormality It might be caused by an external noise so check the transmission line to remove the factor s 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 88 OCH675E ...

Страница 89: ...before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 7100 EF Total capacity error No Yes Yes No No Yes 89 OCH675E Is it set properly Is it set properly Is the total under 130 of the number of outdoor unit model name Check the capacity code switch SW2 on the indoor controller board on the connected indoor unit Check the model selection switch SW4 on the outdoor contro...

Страница 90: ...0 When connecting via branch box P15 to P100 model code 4 to 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 90 OCH675E 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 unit Check ...

Страница 91: ...ects 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 91 OCH675E Is an indoor unit connected Does it exceed the limit Connect indoor unit Connect less number of units and branch boxes than the limit The model code of the connected indoor unit can be display...

Страница 92: ...e 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 branc...

Страница 93: ...r Lossnay 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 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 tu...

Страница 94: ...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 is s...

Страница 95: ...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 96: ...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 97: ...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 98: ...Pump down ON OFF During compressor running To facilitate outdoor unit the pumping down operation Frequency Fixed to 65 Hz Indoor linear expansion valve Fully open Outdoor 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 OF...

Страница 99: ...her frequency The performance would not be raise at the maximum operating frequency 7 Switching 1 the target evaporation temperature ETm Enable Normal To raise reduce the performance by changing the target ETm during COOL operation Switch to raise the performance raises the performance Switch to reduce the performance prevents dew condensation Switching it to raise the performance it raises the po...

Страница 100: ... Validity of SW1 Invalidity of SW1 SW1 Switch SW2 Switch X Y Relay contact rating 0 1 A 15 VDC min applicable load 1 mA 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 E Relay power supply F Procure locally G Max 10 m SW1 Switch SW2 Switch X Y Relay contact rating ...

Страница 101: ...Ω 40 4 kΩ 220 22 kΩ 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 0 305 0 015 Ω Open or short Solenoid valve coil Bypass valve SV1 M...

Страница 102: ...F1 2 Did the fuse blow Is there contact failure Is the voltage normal Replace the defective fan motor Replace the outdoor multi controller circuit board Check the operation Complete Complete Replace the defective fan motor Replace the outdoor multi controller circuit board Check the operation of fan Power supply check Remove the connector CNF1 2 1 While the breaker is OFF disconnect the compressor...

Страница 103: ...t 4057 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 Resistance k 500 400 300 200 100 0 25 50 75 100 120 Temperature Resistance k 0 C 180 kΩ 25 C 50 kΩ 50 C 17 kΩ 70 C 8 kΩ 90 C 4 kΩ Ther...

Страница 104: ... pressure 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 conne...

Страница 105: ...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 When ...

Страница 106: ...s CNF1 2 5 4 VSP Voltage between pins of C515 and C516 0 V DC when stopped 1 6 5 V DC when operated Same as CNF1 2 6 4 CNF1 2 Connect to fan motors 1 4 310 340 V DC 5 4 15 V DC 6 4 0 6 5 V DC 7 4 15 V DC when stopped 0 15 V DC pulse when operated VDC TEST POINT1 Voltage between pins of C510 310 340 V DC Same as CNF1 2 1 4 VFG TEST POINT4 Voltage between pin3 and pin4 of PC511 or PC512 Correspond t...

Страница 107: ...r circuit board CNCT CN4 Connect to the out door multi controller circuit board CN4 CN2 Connect to the outdoor multi controller circuit board CN2 1 5 Power circuit board Transmitting signal to the outdoor multi controller circuit board 0 5 V DC 2 5 Zero cross signal 0 5 V DC 3 4 Not used 6 5 15 V DC 7 5 15 V DC TB U TB V TB W Connect to the compressor MC Voltage among phases 10 400 V AC Diode modu...

Страница 108: ... circuit board CN2 Connect to the outdoor multi controller circuit board CN102 1 2 24 30 V DC 3 4 24 30 V DC CN1 Connect to the outdoor noise filter circuit board CNAC1 1 3 220 240 V AC TB1 Connect to the electrical parts box ...

Страница 109: ... outdoor multi controller circuit board CNAC CNCT Primary current Connect to the outdoor power circuit board CN5 LO1 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 400V AC input Connect to the out door power circuit board TB L1 TB L2 TB L3 LI1 LI2 LI3 NI POWER SUPPLY LI1 LI2 LI2 LI3 LI3 LI1 400V AC input LI1 NI LI2 NI LI3 NI 230V AC input Connect to the terminal block TB1 EI Connect to the electrica...

Страница 110: ... 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 delay 63H...

Страница 111: ... 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 abno...

Страница 112: ...ency 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 Openi...

Страница 113: ...t indoor SC SH IC1 SCm SHm 0 0 20 0 109 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 10 unit...

Страница 114: ...sensor all thermistors and SC SH at time of abnormality delay 137 10010001 TH4 Compressor sensor data at time of abnormality delay C 99 9 999 9 C 138 01010001 TH6 Suction pipe sensor data at time of abnormality delay C 139 11010001 TH3 Outdoor liquid pipe sensor data at time of abnormality delay C 140 00110001 TH8 Heat sink sensor data at time of abnormality delay C 141 10110001 OC SC cooling at t...

Страница 115: ...0101 IC10 Capacity code 161 10000101 IC11 Capacity code 162 01000101 IC12 Capacity code 163 11000101 IC9 SC SH 99 9 999 9 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 1101...

Страница 116: ... of abnormality 200 00010011 High pressure sensor data at time of abnormality 99 9 999 9 PSIG Display of data from High pressure sensor all thermistors and SC SH at time of abnormality 201 10010011 TH4 Compressor sensor data at time of abnormality 99 9 999 9 C 202 01010011 TH6 Suction pipe sensor data at time of abnormality 203 11010011 TH3 Outdoor liquid pipe sensor data at time of abnormality 20...

Страница 117: ...e direct sunlight rain water etc when proceeding with the wiring and connections 3 The wire size is the minimum value for metal conduit wiring The power cord size 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 a...

Страница 118: ... 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 L N NO N 220 230 240 V 50 Hz A B A B D L N S1 S2 S3 S1 S2 S3 S1 S2 S3 C D When power is supplied from the outdoor unit When power is supplied separately Schematic Drawing of Wiring When using a Branch Box and CITY MULTI series indoor unit example E L N Note CITY MULTI series indoor unit cannot receive power supplied from ...

Страница 119: ...2 MSZ LN VG MSZ AP VG MSZ AP VF MSZ EF VG E2 MSZ EF VGK E1 MSZ AP VGK MFZ KT VG MSZ LN VG2 7 4 Type 6 Branch box 5 1 3 0 Connect to Connection kit PAC LV11M Indoor unit V1 V2 Type 7 MSZ EF VE MSZ SF VA MSZ SF VE MSZ FH VE MSZ EF VG E1 6 8 2 4 Type 8 MFZ KJ VE2 MSZ LN VG MSZ AP VG MSZ AP VF MSZ EF VG E2 MSZ EF VGK E1 MSZ AP VGK MFZ KT VG MSZ LN VG2 7 4 Type 9 Connection kit PAC LV11M 3 5 Connect to...

Страница 120: ...te control cables 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 Wir...

Страница 121: ...d cable 3N 380 400 415 V 50 Hz Example of system when using a Branch Box Example of system when using an M NET controller When power is supplied separately N 220 230 240 V 50 Hz N 220 V 60 Hz 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 uni...

Страница 122: ...ion Page numbers in this technical manual Power consumption Total power consumption of each indoor unit See the technical manual of each indoor unit 1 Power consumption of outdoor unit Standard capacity table Refer to 4 3 2 Total power consumption of system See the technical manual of each indoor unit 1 2 kW The power consumption of the outdoor unit will vary depending on the total capacity of the...

Страница 123: ...he 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 the spaces provided on the Refrigerant amount plate on the outdoor unit Calculation of additional refrigerant charge Calculate the additional charge using the liquid pipe size and length of the extended piping and total capacity of connected indo...

Страница 124: ... 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 to First Branch Out door Unit Piping Diameter Note When connecting the CONNECTION KIT PAC ...

Страница 125: ... Branch to Branch B C Select the size from the table to the right 1 Refrigerant Piping Diameter In Section From Outdoor Unit to First Branch Out door Unit Piping Diameter 3 Refrigerant Piping Diameter In Section From Branch to Branch 2 Refrigerant Piping Diameter In Section From Branch to Indoor Unit Indoor Unit Piping Diameter Model number Piping Diameter mm 50 Liquid Line ø6 35 Gas Line ø12 7 63...

Страница 126: ...rom Outdoor Unit to Branch box A B C Each Section of Piping 2 Sections From Branch box to Indoor Unit a to h Select the size from the table to the right 1 Refrigerant Piping Diameter In Section From Outdoor Unit to First Branch Out door Unit Piping Diameter A B C L The farthest piping length from the outdoor unit to an indoor unit 2 Refrigerant Piping Diameter In Section From Branch box to Indoor ...

Страница 127: ...nches 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 Section of Piping 2 Sections From Branch box or Branch header to Indoor Unit a to j Select the size from the table to the right 1 Refrigerant Piping Diameter In Section From Outdoor Unit to Branch box or Branch header Outdoor Unit Piping Diameter A B to E L...

Страница 128: ...ing 2 Sections From Branch box or Branch header to Indoor Unit a to k Select the size from the table to the right 1 Refrigerant Piping Diameter In Section From Outdoor Unit to Branch box or Branch header Outdoor Unit Piping Diameter A B to E L1 The farthest piping length from the outdoor unit to an indoor unit L2 The farthest piping length for the main pipes from the outdoor unit to the branch box...

Страница 129: ...se the results of calculations 1 and 2 to calculate the refrigerant concentration If the calculation results do not exceed the maximum concentration perform the same calculations 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 at this indoor unit Direction of refri...

Страница 130: ...r 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 Outdoor TH6 7 High pressure switch 63H High pressure sensor 63HS Low pressure sensor 63LS 4 way valve 21S4 Bypass valve SV1 Linear expansion valve CNLVA CNLVB Pull out the disconnected wire ...

Страница 131: ...oto 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 Ambient TH7 from the sensor holder Note When replacing thermistor A...

Страница 132: ...p panel See Photo 1 3 Remove the electrical parts box See Photo 5 4 Remove 3 valve bed fixing screws 4 10 and 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 ...

Страница 133: ...ow 12 Removing linear expansion valve LEV A LEV B 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 the cover panel front Refer to procedure 8 5 5 Remove the cover panel rear Refer to procedure 8 6 6 Remove the side panel R Refer to procedure 8 7 7 Remove the linear expansion valve coil See Photo 12 8 Recover refrigeran...

Страница 134: ...t 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 the electrical parts box See Photo 5 6 Remove 3 valve bed fixing screws 4 10 and 4 ball valve and stop valve fixing screws 5 16 and then remove the valve bed See Photo 4 and 7 7 Remove 3 right side panel fixing screw 5 12 in the rear ...

Страница 135: ...YKM2 City Multi VRF Brochure PUMY P112 200VKM4 YKM4 2 Product Information Sheet PUMY P200YKM2 Declaration of Conformity CE2017A14 PUMY P200YKM2 Installation Manual BH79D827H02 PUMY P200YKM2 Service Manual OCH675E S Series DATABOOK M P0843 ...

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