Mitsubishi Electric PUMY-P112VKM3 Technical & Service Manual Download Page 150

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OPERATING PROCEDURE

PHOTOS & ILLUSTRATION

13. Removing the compressor (MC)

(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 front panel fixing screws, 5 (5x12) and 2 (4 x

10) and remove the front panel. (See Photo 4)

(5) Remove 4 back cover panel fixing screws (5 × 12) and

remove the back cover panel.

(6) Remove the electrical parts box. (See Photo 5)

(7) 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)

(8) Remove 3 right side panel fixing screws (5 × 12) in the

rear of the unit and then remove the right side panel.

(9) Remove 3 separator fixing screws (4 × 10) and remove

the separator. (See Figure 1)

(10) Recover refrigerant.

(11) Remove the 3 compressor fixing nuts for motor using

spanner or adjustable wrench.

(12) Remove the welded pipe of motor for compressor inlet

and outlet and then remove the compressor.

Note: Recover refrigerant without spreading it in the

air.

Photo 13

Compressor

(MC)

Valve bed

fixing screw

Valve

bed fixing

screws

Compressor

fixing nut

Separator

Accumulator

Figure 1

Separator

fixing

screws

Separator

fixing screw

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 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 of the unit and then remove the right side panel.

(8) Recover refrigerant.

(9) Remove 2 welded pipes of accumulator inlet and outlet.

(10) Remove 2 accumulator leg fixing screws (4 × 10). (See Photo 15)

Note: Recover refrigerant without spreading it in the air.

Photo 14

Accumulator

Inlet

Outlet

Photo 15

Accumulator

Accumulator leg

Accumulator leg fixing

screws

150

OCH632A

Summary of Contents for PUMY-P112VKM3

Page 1: ...40YKM3 PUMY P140YKME3 PUMY P112VKM3 BS PUMY P125VKM3 BS PUMY P140VKM3 BS PUMY P112YKM3 BS PUMY P112YKME3 BS PUMY P125YKM3 BS PUMY P125YKME3 BS PUMY P140YKM3 BS PUMY P140YKME3 BS Service Ref CONTENTS 1 SAFETY PRECAUTION 2 2 OVERVIEW OF UNITS 5 3 SPECIFICATIONS 10 4 DATA 13 5 OUTLINES AND DIMENSIONS 27 6 WIRING DIAGRAM 29 7 NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION 32 8 TROUBLESHOOTING 50 9 ELECT...

Page 2: ...efrigerant charging scale Vacuum pump adaptor Size adjustment gauge Gauge manifold Torque wrench Gas leak detector Charge hose Tools for R410A Contamination inside refrigerant piping can cause deterio ration of refrigerant oil etc If dirt dust or moisture enters into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor If large amount of mineral oil enter...

Page 3: ... 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 water regu...

Page 4: ...0 22 0 24 0 27 0 36 0 Nominal dimensions in Flare nut dimensions Outside diameter Dimension B mm R410A R22 mm Gauge manifold Charge hose Gas leak detector Refrigerant recovery equipment Refrigerant cylinder Applied oil Safety charger Charge valve Vacuum pump Flare tool Bender Pipe cutter Welder and nitrogen gas cylinder Refrigerant charging scale Vacuum gauge or thermis tor vacuum gauge and vacuum...

Page 5: ...M J and an M series indoor unit refer to the installation manual for the CONNECTION KIT 5 Authorized connectable indoor units are as follows PUMY P112 PEFY P25VMA3 E 2 PEFY P32VMA3 E 2 PUMY P125 PEFY P32VMA3 E 4 PUMY P140 PEFY P32VMA3 E 3 PEFY P40VMA3 E 1 6 Do not connect Lossnay remote controller s PZ 61DR E PZ 60DR E PZ 52SF E PZ 43SMF E Decorative panel OVERVIEW OF UNITS M series remote control...

Page 6: ... Notes 1 A maximum of 2 branch boxes can be connected to 1 outdoor unit 2 When connecting a Cylinder unit or a Hydrobox use a PAC MK32 52BC B branch box Select a model according to the connection method 2 branch pipe joint Optional parts In case of using 1 branch box In case of using 2 branch boxes No need Model name Connection method flare brazing MSDD 50AR E MSDD 50BR E Option Optional accessori...

Page 7: ...ymulti indoor units 3 CONNECTION KIT PAC LV11M J M series indoor unit MA remote controller M series remote controller M series S series P series indoor units 3 Cylinder unit Hydrobox MA remote controller 2 When connecting 7 indoor units via branch box connectable citymulti indoor units are 3 connecting 8 indoor units via branch box connectable citymulti indoor units are 2 3 Refer to 2 1 UNIT CONST...

Page 8: ...VLE R M PEFY P25 32 40VMA3 E and M series S series and P series type indoor unit Cooling W B 15 to 24 C D B 5 to 52 C 1 Heating D B 15 to 27 C W B 20 to 15 C Indoor side intake air temperature Outdoor side intake air temperature When connecting fresh air type indoor unit air type indoor Capacity of Fresh Cooling Heating Indoor side and Outdoor side P80 D B 21 to 43 2 W B 15 5 to 35 D B 10 to 20 3 ...

Page 9: ...owered Refer to Figure 1 Furthermore outlet air temperature is lowered Cooling 6 6 Outlet water temperature Outdoor temperature DHW only ATW Heating only DHW ATA Heating 5 ATW Heating ATA Heating 5 20 to 35 20 to 21 7 to 35 10 to 35 7 55 Max 55 Max 55 Max 45 to 55 Max 10 5 0 5 10 15 39 41 43 45 47 49 51 53 55 57 Outdoor temp CDB Max outlet water temp C Figure 1 Temperature change of max outlet wat...

Page 10: ...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 25 inch 52 11 16 41 11 32 13 1 Protection devices High pressure protection High pressure Switch Inverter circuit COMP FAN Overcurrent detection Overheat detection Heat sink thermistor Compressor Compressor thermistor Overcurrent detection Fan motor O...

Page 11: ...ricant FV50S 2 3litter External finish Galvanized Steel Sheet Munsell No 3Y 7 8 1 1 External dimension H W D mm 1338 1050 330 25 inch 52 11 16 41 11 32 13 1 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 prot...

Page 12: ...xternal finish Galvanized Steel Sheet Munsell No 3Y 7 8 1 1 External dimension HxWxD mm 1 338 1 050 330 25 inch 52 11 16 41 11 32 13 1 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 Typ...

Page 13: ...ndoor Unit Rating Indoor Design Temperature Correction 4 5 1 04 5 6 0 90 9 7 kW 5 Outdoor Unit Correction Calculation Outdoor Design Dry Bulb Temperature Correction 40ºC 0 86 Refer to Figure 2 Piping Length Correction 160 m 0 85 Refer to Figure 3 Total Outdoor Unit Capacity CTo Total Indoor Units Capacity CTi CTo Outdoor Rating Outdoor Design Temperature Correction Piping Length Correction 12 5 0 ...

Page 14: ...To Total Indoor Units Capacity CTi CTo Outdoor Unit Rating Outdoor Design Temperature Correction Piping Length Correction Defrost Correction 14 0 1 0 0 94 0 89 11 7 kW 6 Determination of Maximum System Capacity Comparison of Capacity between Total Indoor Units Capacity CTi and Total Outdoor Unit Capacity CTo CTi 10 3 CTo 11 7 thus select CTi CTx CTi 10 3 kW 7 Comparison with Essential Load Against...

Page 15: ... 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 CITY MULTI could 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 PUMY P112 P125 P140 Nominal cooling capacity kW 12 5 14 0 15 5 BTU h 42 650 47 768 52 88...

Page 16: ...io 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 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 PUMY P112 P125 P140 Nominal heating capacity kW 14 0 16 0 ...

Page 17: ...ount of refrigerant kg 7 2 7 2 7 2 Outdoor unit Electric current A 16 17 5 26 17 38 5 67 21 67 7 12 21 91 7 22 25 84 8 58 25 54 8 48 Voltage V 230 400 230 400 230 400 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 D...

Page 18: ...2 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 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 ...

Page 19: ...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 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 380V 400V 415V 4 4 2 PUMY P112VKM3 BS PUMY P112YKM E 3 BS heating OCH632A ...

Page 20: ... A 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 Input 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 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 V Type Total capacity of indoor units kW 2 0 4 0 6 0 ...

Page 21: ...al 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 V Type 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 380V 400V 415V 4 4 4 PUMY P125VKM3 BS PUMY P125YKM E 3 BS heating OCH632A ...

Page 22: ...Input kW Total capacity of indoor units kW V Type 2 0 2 0 4 0 6 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 2 0 2 0 1 0 3 0 4 0 5 0 6 0 7 0 8 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 ...

Page 23: ...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 2 0 1 0 3 0 4 0 5 0 6 0 7 0 8 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 V Type 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 380V 400V 415V 4 4 6 PUMY P140VKM3 BS PUMY P140YKM ...

Page 24: ...apacity ratio 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 To...

Page 25: ... the actual heating capacity Correction factor diagram Outdoor Intake temperature W B C 6 4 2 0 2 4 6 8 10 15 20 Correction factor 1 0 0 98 0 89 0 88 0 89 0 9 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 ...

Page 26: ... 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 P125VKM3 BS PUMY P125YKM3 BS PUMY P125YKME3 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 CONTINUOUS ...

Page 27: ... 60 55 27 55 3 26 73 60 9 2 Power supply wiring hole 27 Knock Out Power supply wiring hole 40 Knock Out Right piping hole Knock Out Right trunking hole Knock Out 92 3 26 73 60 75 50 29 55 27 92 92 Air Intake Front piping cover Rear piping cover Air Discharge Rear Air Intake Side Air Intake 2 12 36 Oval holes Foundation Bolt M10 2 U Shaped notched holes Foundation Bolt M10 Installation Feet 225 417...

Page 28: ... the transmission line Ground for concentration control Ground for the power supply 1 Handle for moving Handle for moving Service panel 1 1338 26 1050 362 909 426 483 369 632 Air Intake Drain hole 5 33 Bottom piping hole Knock Out 81 86 154 136 45 160 160 160 110 Min 15mm Min 1000mm Min 150mm Min 15mm FREE Service space FOUNDATION Foundation bolt height The diagram below shows a basic example Expl...

Page 29: ...29 6 WIRING DIAGRAM PUMY P112VKM3 PUMY P125VKM3 PUMY P140VKM3 PUMY P112VKM3 BS PUMY P125VKM3 BS PUMY P140VKM3 BS OCH632A ...

Page 30: ...30 PUMY P112YKM3 PUMY P125YKM3 PUMY P140YKM3 PUMY P112YKM3 BS PUMY P125YKM3 BS PUMY P140YKM3 BS OCH632A ...

Page 31: ...31 PUMY P112YKME3 PUMY P125YKME3 PUMY P140YKME3 PUMY P112YKME3 BS PUMY P125YKME3 BS PUMY P140YKME3 BS OCH632A ...

Page 32: ...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 City Multi Indoor unit 013 City Multi Indoor unit ...

Page 33: ...ler simultaneously and hold for 2 seconds Note The above steps are the same as when making group settings A Changing to the linked operation unit address display state The display shown in Figure 4 will appear when the a button on the remote control is pressed Displaying the address of the Lossnay unit and linked indoor unit In this situation the indoor unit number will be the lowest address of th...

Page 34: ...leting the check Simultaneously press the FILTER and k buttons on the remote controller and hold for 2 seconds to return to the normal mode 3 Clearing an address Refer to section 1 regarding the address entry and section 2 regarding checking addresses a In making group settings Turn off the remote controller The procedure is the same as described in a under 2 Address check Put in the indoor unit a...

Page 35: ...g P15 P20 P25 P32 P40 P50 P63 P80 P100 P125 P140 P112 P125 P140 Indoor unit Outdoor unit 6 35 1 4 9 52 3 8 9 52 3 8 12 7 1 2 15 88 5 8 15 88 5 8 Thermistor TH4 Compressor Thermistor TH7 Ambient Outdoor liquid pipe Thermistor TH3 Unit mm in Ball valve Strainer Refrigerant Gas pipe 4 way valve Check valve Low pressure Thermistor TH6 Suction pipe Check valve High pressure Strainer Strainer Strainer S...

Page 36: ...gh pressure Strainer Strainer Strainer Strainer 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 Piping connection size In 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...

Page 37: ...s 9 52 mm 15 88 mm A UNIT B UNIT C UNIT D UNIT E UNIT Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe 6 35 mm 9 52 mm 6 35 mm 9 52 mm 6 35 mm 9 52 mm 6 35 mm 9 52 mm 6 35 mm 12 7 mm 3 branch type is only for A B and C unit 6 35mm 9 52mm 12 7mm 15 88mm 19 05mm Conversion formula 1 4 inch 3 8 inch 1 2 inch 5 8 inch 3 4 inch 1 Valve size for ou...

Page 38: ...6 on the M NET remote controller c Set the address setting switch on outdoor unit P C B as shown below d Use the M NET control indoor unit M IC within the group with the most functions as the M IC Main unit Combinations of 1 through 3 above are possible TB5 TB15 01 101 M IC Main TB3 TB7 51 OC TB5 TB15 02 M IC Sub M NET RC 1 2 A B M1M2 S M1M2 S M1M2 S 1 2 M1M2 S Group A TB5 TB15 01 101 M NET RC Mai...

Page 39: ... the M NET control indoor unit main address plus 100 In this case it should be 101 M NET remote controller M NET RC and MA remote controller MA RC cannot be used together Do not connect anything with TB15 of M NET control indoor unit M IC Name Symbol Maximum units for connection Outdoor unit OC M NET control Indoor unit M IC 1 OC unit can be connected to 1 to 9 P112 1 to 10 P125 1 to 12 P140 M IC ...

Page 40: ... supply unit with the earth g Set the address setting switch as follows h The group setting operations among the multiple M NET control indoor units is done by the M NET remote controller M NET RC after the electrical power has been turned on Unit Range Setting Method M IC Main 01 to 50 Use the smallest address within the same group of M NET control indoor units M IC Sub 01 to 50 Use an address ot...

Page 41: ...s TB5 for transmission wires for M NET control indoor units M IC that have been connected to different outdoor units OC Set all addresses to ensure that they are not overlapped M NET remote controller and MA remote controller cannot be connected with the M NET control indoor unit of the same group wiring together A B C E D M IC 51 TB5 M NET RC 01 TB5 03 M IC TB5 02 TB5 04 M IC TB5 05 TB5 07 M IC T...

Page 42: ...ing 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 controller Refer to the installation manual of MA remote con troller a The same as above a b The same as above b c In the case of group operation using MA remote con troller MA...

Page 43: ...nit of the same group 3 MA remote controllers or more cannot be connected with the M NET control indoor unit of the same group The second MA remote controller is con nected with the terminal block TB15 for the MA remote controller of the same M NET control indoor unit M IC as the first MA remote control 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...

Page 44: ...units is done by the M NET remote controller M NET RC after the electrical power has been turned on i When connecting PWFY unit For PWFY series do not set up group connection with other indoor units LOSSNAY is not available for use with PWFY series Use a WMA remote controller for operation of PWFY series For more details refer to the service manual for PWFY series Unit Range Setting Method M IC Ma...

Page 45: ...L6 L7 500 m 1 25 E more Longest transmission cable length M NET cable L1 and L3 L4 and L2 L6 and L7 200 m 1 25 E or more MA Remote controller cable length m1 and m1 m2 m3 and m1 m2 m3 m4 200 m 0 3 to 1 25 E A Group B Group C Group D Shielded Wire E Sub MA Remote Controller Address 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 ...

Page 46: ...ply unit to the earth g Set the address setting switch as follows Unit Range Setting Method A IC 01 to 50 According to the set address of connected Branch Box set the A IC addresses sequentially by SW1 on Branch Box For example when setting the Branch Box address to 01 A IC addresses set 02 03 04 and 05 Branch Box 01 to 50 Use a number within the range 1 50 but it should not make the highest addre...

Page 47: ...1M2 S 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 R...

Page 48: ...pply unit to the earth g Set the address setting switch as follows Unit Range Setting Method M IC 01 to 50 A IC 01 to 50 According to the set address of connected Branch Box set the A IC addresses sequentially by SW1 SW11 SW12 on Branch Box For example when the Branch Box address is set to 01 set the A IC addresses to 01 02 03 04 and 05 Branch Box 01 to 50 Use a number within the range 1 50 but it...

Page 49: ... 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 Supply Unit...

Page 50: ...switch of the remote controller s Refer 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 ru...

Page 51: ...eck the cold air blows out Heat mode Check the heat 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 Check the operation of the outdoor unit fan also 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 automatica...

Page 52: ...mistor 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 delay code 1205 U4 5106 Ambient temperature...

Page 53: ...e to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 0403 Ed Serial communication error No Yes Are they connected normally Check the connection of the communication line CN2 and CN4 between the outdoor multi controller circuit board and power circuit board Connect the CN2 and CN4 properly Replace them in case of a breakage The communication ci...

Page 54: ...ed by foreign object Refrigerant shortage Refrigerant liquid accumulation in compressor while indoor unit is OFF thermo OFF Diagnosis of defectives 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...

Page 55: ...lue Is it free from any trace of over heating or burning Is there a resistance detected Is there a 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 thermistor Replace the i...

Page 56: ...ed airflow clogged 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...

Page 57: ...ean 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 Solve the short cycle Wash the outdoor heat exchanger Defective pipes dirty dirty short cycled no dirt no dirt no short cycle Continue to the next...

Page 58: ...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 Chart 3 of 4 No No Yes Yes Yes Continued from the previous page Is there a resistance detected Is there a resistance detected Replace the TH7 Replace the indoor LEV Disconnect the indoor LEV wiring to check the resistance Continue to t...

Page 59: ...ntinued from the previous page Is there a voltage detected Replace the SV1 Replace the 63HS Replace the outdoor multi controller circuit board Yes 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 there a resistance detected Yes No 59 For the voltage refer to 8 8 HOW TO CHECK THE COMPONENTS ...

Page 60: ... connection of TH4 Defective holder of TH4 Disconnection of LEV coil Disconnection of LEV connector LEV performance failure Diagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Chart 1 of 2 0 700 k 10 410 k 20 250 k 30 160 k 40 104 k No Yes No Yes No Yes Is the TH4 wiring disconnected Is the resistance normal Is...

Page 61: ...to 8 8 HOW TO CHECK THE COMPONENTS Is there a resistance detected Replace the indoor LEV 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 there a 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 con...

Page 62: ... outdoor multi controller circuit board Indoor LEV performance failure Gas leakage or shortage Defective 63HS TH3 Thermistor Outdoor liquid pipe TH7 Thermistor Ambient LEV Electronic expansion valve 63HS High pressure sensor Diagnosis of defectives 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 Ye...

Page 63: ...he previous page Is there a voltage detected Is the voltage normal value Is it free from any trace of over heating or burning Is there a 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...

Page 64: ...ed 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 Electronic expansion valve Diagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy v Is the outdoor s...

Page 65: ...unit and branch box Miswiring between indoor unit and branch box Miswiring of LEV in branch box Malfunction of LEV in branch box Diagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 1503 P6 Indoor HEX freezing protection No Yes Connect the piping and wiring to the same port No Is there a resistance detected Conn...

Page 66: ...outdoor multi controller circuit board Defective outdoor power circuit board Diagnosis of defectives 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 connector or connect it tightly Yes Disconnect the connector for ou...

Page 67: ...eplacing boards 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 Se...

Page 68: ...s Remedy Chart 2 of 2 Yes Yes No No Are they connected properly Is the compressor faulty 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 faulty grounded or not Continued from the previous page 68 OCH632...

Page 69: ...urn 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 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...

Page 70: ... 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 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 circ...

Page 71: ...ronization signal error The black square indicates a switch position Chart 1 of 2 No No No No No Yes Yes Yes Yes Yes 6 3 7 8 Is there any abnormality on wirings Which sub code is displayed Does a DC bus voltage raise to approx 350 V at PAM driving Is there any abnormality on PAM wirings Is there any abnormality at the PAM circuit on the outdoor power circuit board Is there any abnormality at the P...

Page 72: ...wer supply normal Is the bus voltage normal The difference of the voltage between the one read by the LED1 and 2 and the one at the test points listed above is large Replace the noise filter circuit board Replace the outdoor power circuit board Defective outdoor power circuit board Decrease of power supply voltage L1 open phase Replace the outdoor power circuit board Defective outdoor power circui...

Page 73: ...30 U5 Heat sink temperature trouble 0 180 kΩ 25 50 kΩ 50 17 kΩ 70 8 kΩ 90 4 kΩ TH8 temp resistance characteristic 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 a disconnection looseness or breakage Is the resistance normal Refer t...

Page 74: ...ecting 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 D...

Page 75: ...ge normal Replace the outdoor multi controller circuit board Replace the defective fan motor Connect the wiring connector properly Replace it in case of a breakage Replace the outdoor multi controller circuit board Replace the fan motor Check the fuse on the outdoor multi controller circuit board Check the fan motor connector CNF1 and CNF2 for a disconnection or looseness 1 While the breaker is OF...

Page 76: ...mperature 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 a disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace the connector in case of a breakage Replace the thermistor Replace the outdoor multi co...

Page 77: ...ion pipe 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 a disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in case of a breakage Replace the thermistor Replace the outdoor multi co...

Page 78: ...5105 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 No Yes Yes Yes No No Is there any abnormality such as a disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in case of...

Page 79: ... 5 6 7 8 3 No Yes Yes Yes No No Is there any abnormality such as a disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in case of a breakage Replace the thermistor Replace the outdoor multi controller circuit board Malfunction of thermistor circuit No abnormality A connector contact failure is sus...

Page 80: ...sition No Yes Yes Yes No No Is there any abnormality such as a disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in case of a breakage Replace the thermistor Replace the outdoor multi controller circuit board Malfunction of thermistor circuit No abnormality A connector contact failure is suspect...

Page 81: ...Setting ON OFF Display on LED1 2 Unit 99 9 999 9 4 1 2 5 6 7 8 3 No Yes Yes Yes No No Yes No Is there any abnormality such as a disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in case of a breakage Replace the thermistor Replace the outdoor multi controller circuit board Malfunction of thermis...

Page 82: ...ontroller circuit board Diagnosis of defectives 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 No Yes Yes No No Is there any abnormality such as a disconnection looseness or breakage Is...

Page 83: ... OFF 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 a disconnection looseness or breakage Is the detected internal pressure normal Is the detected pressure normal Connect the wiring connector properly Replace it in case of a breakage Check the...

Page 84: ...temperature 10 consecutive second detection One time detection TH7 3 37 A 40 A TH7 3 40 A 43A Three phase Yes Yes No No Yes 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...

Page 85: ...nnectors or 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 ab...

Page 86: ...osis of defectives 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...

Page 87: ...nnect disconnect transmission from to control system and centralized control system Diagnosis of defectives 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 tu...

Page 88: ...tives Make 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 fa...

Page 89: ...tion of sending receiving circuit on indoor outdoor unit 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 unit transmit signal to the remote c...

Page 90: ...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...

Page 91: ... the procedure 1 Connect the transmission line properly then perform the procedure 1 Is the abnormality reproduced 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 perform the procedure 1 Check the address switch on the source of abnormality Check the transmission li...

Page 92: ...er board which the displayed address attribute 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 syst...

Page 93: ...ng boards 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 Rep...

Page 94: ...er transmitting error caused by noise interference Diagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Check the remote controller for main sub setting Conduct the Remote Controller Diagnosis 2 or more times Is RC NG displayed Turn the power back ON No Is RC 6832 or ERC01 to ERC66 displayed No abnormality It mi...

Page 95: ...ceive 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 95 OCH632A ...

Page 96: ...s more than 2 times No No 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 abnormality A connector or wiring contact failure is ...

Page 97: ...nd 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 97 OCH632A ...

Page 98: ...47 38 20 The model name code of the outdoor unit is registered wrongly Diagnosis of defectives 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 cont...

Page 99: ...onnecting via branch box P15 to P100 model code 3 to 20 PWFY unit P100 model code 20 Diagnosis of defectives 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 outdoo...

Page 100: ...it 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 defectives 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...

Page 101: ...ace 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 bra...

Page 102: ...er 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 t...

Page 103: ...onnecting 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 se...

Page 104: ...transmitting receiv ing circuit is defective The remote controller must be replaced with a new one Where the remote controller is not defective but cannot be operated Error display 2 E3 6833 or 6832 flashes Transmissionisnotpossible There might be noise or interference on the transmission path or the indoor unit or other remote controllers are defective Check the transmission path and other contro...

Page 105: ...on the remote controller display if the correct voltage 8 5 12 V DC is not supplied to the remote control ler If this is the case check the remote controller wiring and indoor units OK No problems 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 a...

Page 106: ...d solution Though the content of operation is displayed on the remote controller some indoor units do not operate is not displayed on the remote controller MA remote controller is not fed PLEASE WAIT keeps being dis played or it is displayed periodically PLEASE WAIT is usually dis played about 3 minutes after the power supply of the outdoor unit is on The remote controller does not operate though ...

Page 107: ...ard blow in cooling in cause the downward blow operation has been continued for 1 hour At defrosting in heating hot adjusting and thermostat OFF it automatically changes over to horizontal blow Ultra low speed operation is commenced at thermostat OFF Light air automatically change over to set value by time or piping temperature at thermostat ON The fan is to stop during defrosting Fan is to run fo...

Page 108: ...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 1 ON 0 OFF Before the power is turned ON Initial set...

Page 109: ... Enable Normal SW7 function switch 1 Ignore current sensor abnormality and rotational frequency abnormality of 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 connector...

Page 110: ...e operation Outdoor controller board DIP SW9 2 SW1 SW2 Function Demand control OFF ON ON OFF ON OFF OFF ON OFF ON ON 100 75 50 0 Normal Stop A Distant control board B Relay circuit C External output adapter PAC SA88HA E D Outdoor unit control board 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 ...

Page 111: ...t Solenoid valve coil Bypass valve SV1 Refer to the next page Fan motor MF1 MF2 Measure the resistance between the terminals with a tester Winding temperature 20 W V U TH8 is internal thermistor of power module Y Normal 1725 172 5 Abnormal Open or short Normal 0 305 0 015 Abnormal Open or short PUMY P VKM PUMY P YKM 0 466 0 023 Normal Gray Black Gray Red Gray Yellow Gray Orange Abnormal 46 3 Open ...

Page 112: ...T 1 VDC between 1 and 4 of the fan connector 310 350 V DC Y VDC between 1 and 4 of the fan connector 280 340 V DC when ACTM stops 350 V DC when ACTM is operating V TEST POINT 2 VCC between 5 and 4 of the fan connector VCC 15 V DC TEST POINT 3 VCC between 6 and 4 of the fan connector VCC 0 6 5 V DC No Fail Fail Wiring contact check Contact of fan motor connector CNF1 2 Fuse check Check the fuse F50...

Page 113: ...nt 4057 2 Rt 7 465exp 4057 273 t 393 1 1 20 250 k 30 160 k 40 104 k 50 70 k 60 48 k 70 34 k 80 24 k 90 17 5 k 100 13 0 k 110 9 8 k 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 0 180 k 25 50 k 50 17 k 70 8 k 90 4 k Thermistor R50 17 k 2 B constant 4170 3 Rt 17exp...

Page 114: ...ED1 2 1 When the pressure displayed on self diagnosis LED1 2 is between 0 and 0 098 MPaG 14 PSIG the high pressure sensor 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 connectors 63HS to check the pressure w...

Page 115: ...etween the pin 2 and pin 3 connectors 63LS to check the pressure with the self diagnosis LED1 2 1 When the pressure displayed on the self diagnosis LED1 2 exceeds 1 7 MPaG 247 PSIG the low pressure sensor has a problem 2 If other than 1 the control board has a problem 5 Remove the high pressure sensor 63HS from the control board and insert it into the connector for the low pres sure sensor 63LS to...

Page 116: ... 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 Y 310 350 V DC V 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 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 pipe 63HS High pressure sensor 63H High pressure swi...

Page 117: ... circuit board CN52C CN2 Connect to the outdoor multi controller circuit board CN2 1 5 Transmitting signal to outdoor multi controller circuit board 0 5 V DC 2 5 Zero cross signal 0 5 V DC 3 4 18 V DC 6 5 16 V DC 7 5 16 V DC CN4 Connect to the outdoor multi controller circuit board CN4 Brief Check of POWER MODULE Usually they are in a state of being short circuited if they are broken Measure the r...

Page 118: ...y current Connect to the outdoor noise filter 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 16 V DC 7 5 16 V DC 5 1 2 6 7 TB U TB V TB W Connect to the com...

Page 119: ...ction of primary current Connect to the outdoor noise filter 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 16 V DC 7 5 16 V DC 5 1 2 6 7 TB U TB V TB W Con...

Page 120: ...E3 BS PUMY P140VKM3 BS PUMY P140YKM3 BS PUMY P140YKME3 BS 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 Y Connect to the outdoor power circuit board CNAC1 V 1 3 220 240 V AC TB1 Connect to the electrical parts box OCH632A ...

Page 121: ...rd CNAC CNDC Connect to the outdoor multi controller circuit board CNDC LO1 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 400 V AC OUTPUT Connect to the outdoor power circuit board TB L1 TB L2 TB L3 CNCT Primary current Connect to the outdoor power circuit board CN5 CNL Connect to the ACL4 CNAC1 230 V AC Connect to the M NET power circuit board CN1 GD3 Connect to the electrical parts box 121 Outdoo...

Page 122: ...2 LO3 NO POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 400 V AC OUTPUT LO1 NO LO2 NO LO3 NO 230 V AC OUTPUT LO1 NO Connect to the converter circuit board L1 IN N IN LO2 LO3 Connect to the ACL ACL2 ACL3 CNCT Primary current Connect to the outdoor power circuit board CN5 CNL Connect to the ACL4 CNAC1 230 V AC Connect to the M NET power circuit board CN1 GD3 Connect to the electrical parts box Outdoor noise f...

Page 123: ... A2 L3 A2 Connect to the ACL1 ACL2 ACL3 CN7 Connect to the outdoor power circuit board CN7 CK OU Connect to the CK capacitor L1 IN N IN Connect to the noise filter circuit board LO1 NO L1 A1 Connect to the ACL1 L1 OU L2 OU L3 OU Connect to the outdoor power circuit board TB L1 L2 L3 123 OCH632A ...

Page 124: ...tation 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 63HS a...

Page 125: ...se 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 abnormality...

Page 126: ...55 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 Opening pulse...

Page 127: ...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 mode No ...

Page 128: ...ssure 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 9 138 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 cooling at tim...

Page 129: ...0101 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 11010101 ROM type Display of ROM type 172 00110101 Check sum mode 0000 FFFF Display of check sum cod...

Page 130: ...eat sink sensor data at time of abnormality 205 10110011 OC SC cooling at time of abnormality 99 9 999 9 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 abnormality 207 11110011 IC2 SC SH at time of abnormality 208 00001011 IC3 SC SH at time of abnormality 209 10001011 IC...

Page 131: ...ulse abnormality delay 237 10110111 IC8 LEV opening pulse abnormality delay 238 01110111 IC6 SC SH at time of abnormality delay 99 9 999 9 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 delay 241 10001...

Page 132: ...e installation site may require attachment of an earth leakage breaker If no earth leakage breaker is installed it may cause an electric shock Do not use anything other than breaker and fuse with correct capacity Using fuse and wire or copper wire with too large capacity may cause a malfunction of unit or fire Be sure to install N Line Without N Line it could cause damage to the unit Schematic Dra...

Page 133: ...2 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 3N 380 400 415 V 50 Hz A B A B D L N S1 S2 S3 S1 S2 S3 S1 S2 S3 C D Grounded When power is supplied from the outdoor unit When power is supplied separately PUMY P YKM E 3 series Grounded Grounded Schematic Drawing of Wiring When using a Branch Box and M NET control indoor unit example E L N N 220 230 240 V 50 Hz N 220 V 60 Hz Not...

Page 134: ...A Breaker for wiring NFB Main Cable Branch Ground Capacity Fuse F0 16 A or less 3 1 5 1 5 1 5 20 A current sensitivity 4 16 16 20 F0 25 A or less 3 2 5 2 5 2 5 30 A current sensitivity 4 25 25 30 F0 32 A or less 3 4 0 4 0 4 0 40 A current sensitivity 4 32 32 40 Apply to IEC61000 3 3 about max permissive system impedance 2 The Ground fault interrupter should support inverter circuit The Ground faul...

Page 135: ...s 1 0 1 0 01 1 2 Rated Tripping current x 3 4 6 8 C 10 20 Sample chart Sample Wire thickness V3 1 5 mm 48 2 5 mm 56 4 0 mm 66 Example of F2 calculation Condition PLFY VBM 4 PEFY VMA 1 C 8 refer to right sample chart F2 19 8 4 8 38 1 8 14 65 16 A breaker Tripping current 8 16 A at 0 01 s 4 Current sensitivity is calculated using the following formula G1 V2 Quantity of Type1 V2 Quantity of Type2 V2 ...

Page 136: ...e 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 Kind 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 Wirin...

Page 137: ...z Example of system when using a Branch Box Example of system when using a M NET controller When power is supplied separately N 220 230 240 V 50 Hz N 220 V 60 Hz Transmission cable M NET control indoor unit M NET control indoor unit MA RC M NET control indoor unit 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 c...

Page 138: ...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 a CITY MULTI S 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 tota...

Page 139: ...ition 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 indoor units Calculate the addi...

Page 140: ...d 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 pipe and additional refrigerant charge amounts in the sp...

Page 141: ...ant 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 indoor units Calculate the additional refrigerant charge using the procedure shown to the right and charge with the additional refrigera...

Page 142: ...nt 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 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 ext...

Page 143: ... 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 Select Each Section of Refrigerant Piping Selecting the Refrigerant Branch Kit Select the size from the table to the right 1 Refrigerant Piping Diameter In Section From Outdoor Unit to Branch box or Branch header Out door Unit Piping Diameter 1 Section Fro...

Page 144: ...s sets for use with liquid pipes and for use with gas pipes Select Each Section of Refrigerant Piping Selecting the Refrigerant Branch Kit Select the size from the table to the right 1 Refrigerant Piping Diameter In Section From Outdoor Unit to Branch box or Branch header Out door Unit Piping Diameter 1 Section From Outdoor Unit to Branch box or Branch header A to E 2 Sections From Branch box or B...

Page 145: ... 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 con centration perform the same calculations for the larger sec ond and third room etc until it has been determined that nowhere the maximum concentration will be exceeded Indoor unit All refrigerant of this system will leak out to this room if the...

Page 146: ...g screws Fan motor Fan motor fixing screws Photo 3 3 Removing the electrical parts box 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connecting wire from terminal block 4 Remove all the following connectors from outdoor multi controller circuit board Diagram symbol in the connector housing Fan motor CNF1 CNF2 Thermistor HIC pipe TH2 Thermistor Outdoor l...

Page 147: ...tor Ambient TH7 since they are combined together Refer to procedure No 5 below to remove thermistor Ambient TH7 Photo 6 Electrical parts box Clamps Photo 7 Thermistor Suction pipe TH6 Thermistor Compressor TH4 Ball valve and stop valve fixing screws Thermistor HIC pipe TH2 High pressure sensor 63HS 5 Removing the thermistor Ambient TH7 1 Remove the service panel See Photo 1 2 Remove the top panel ...

Page 148: ...ector 21S4 green on the outdoor multi controller circuit board in the electrical parts box Photo 10 4 way valve coil 21S4 4 way valve 4 way valve coil fixing screw 8 Removing the 4 way valve 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 3 valve bed fixing screws 4 10 and 4 ball valve and stop valve fixing screws 5 1...

Page 149: ...e the welded part of high pressure switch and high pressure sensor Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the high pressure switch and high pressure sensor cover them with a wet cloth to prevent them from heating 100 C or more then braze the pipes so that the inside of pipes are...

Page 150: ... outlet and then remove the compressor Note Recover refrigerant without spreading it in the air Photo 13 Compressor MC Valve bed Valve bed fixing screw Valve bed fixing screws Compressor fixing nut Separator Accumulator Figure 1 Separator fixing screws Separator fixing screw 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...

Page 151: ... parts box 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connecting wire from terminal block 4 Remove all the following connectors 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...

Page 152: ...mbient TH7 since they are combined together Refer to procedure No 5 below to remove thermis tor Ambient TH7 Photo 6 Electrical parts box Clamps Photo 7 Thermistor Suction pipe TH6 Thermistor Compressor TH4 Ball valve and stop valve fixing screws Thermistor HIC pipe TH2 Compressor MC 5 Removing the thermistor Ambient TH7 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Di...

Page 153: ...ctor 21S4 green on the outdoor multi controller circuit board in the electrical parts box Photo 10 4 way valve coil 21S4 4 way valve 4 way valve coil fixing screw 8 Removing the 4 way valve 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 3 valve bed fixing screws 4 10 and 4 ball valve and stop valve fixing screws 5 16...

Page 154: ...ve the welded part of high pressure switch and high pressure sensor Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the high pressure switch and high pressure sensor cover them with a wet cloth to prevent them from heating 100 C or more then braze the pipes so that the inside of pipes ar...

Page 155: ...e reactor 3 Remove the 4 screws that fix the reactor box See Photo 13 or Figure 1 4 Remove the reactor box Note 1 The reactor is very heavy Be careful when han dling it Note 2 PUMY P YKME3 model has 3 reactors Photo 13 YKM3 model Reactor Screws Screws Reactor box 4 way valve Figure 1 YKME3 model Screws Screws Reactors 4 way valve 155 OCH632A ...

Page 156: ...outlet and then remove the compressor Note Recover refrigerant without spreading it in the air Photo 14 Compressor MC Valve bed Valve bed fixing screw Valve bed fixing screws Compressor fixing nut Separator Accumulator Figure 2 Separator fixing screws Separator fixing screw 15 Removing the accumulator 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 2 front cover ...

Page 157: ...157 OCH632A ...

Page 158: ...CTRIC CORPORATION Issued Mar 2017 No OCH632 REVISED EDITION A Published Dec 2016 No OCH632 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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Mitsubishi Electric PUMY-P112VKM3, Technical & Service Manual

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