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154

Accumulator

OPERATING PROCEDURE

PHOTOS

14. 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 screw (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 span-

ner 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 14

Compressor
(MC)

Valve bed

Valve bed

fixing screw

Valve

bed fixing
screws

Compressor
fixing nut

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 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 16)

Note: Recover refrigerant without spreading it in the air.

Photo 15

Photo 16

Inlet

Outlet

Separator

Accumulator

Accumulator leg

Accumulator leg fixing

screws

Accumulator

Figure 1

Separator
fixing
screws

Separator
fixing screw

OCH576

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Содержание PUMY-P112VKM1

Страница 1: ...S PUMY P125YKM1 BS PUMY P140YKM1 BS Salt proof model PUMY P112VKM1 PUMY P125VKM1 PUMY P140VKM1 PUMY P112YKM1 PUMY P125YKM1 PUMY P140YKM1 PUMY P112VKM1 BS PUMY P125VKM1 BS PUMY P140VKM1 BS PUMY P112YKM1 BS PUMY P125YKM1 BS PUMY P140YKM1 BS Service Ref CONTENTS 1 SAFETY PRECAUTION 2 2 OVERVIEW OF UNITS 5 3 SPECIFICATIONS 9 4 DATA 11 5 OUTLINES AND DIMENSIONS 22 6 WIRING DIAGRAM 24 7 NECESSARY CONDIT...

Страница 2: ...refrigerant 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 ente...

Страница 3: ...stall 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 regular...

Страница 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 vacuu...

Страница 5: ...nnot be connected The PWFY unit cannot be the only unit connected to an outdoor unit Select an indoor unit so that the total rated capacity of the indoor units excluding the PWFY unit is 50 to 100 of the outdoor unit capacity 4 When connecting the CONNECTION KIT PAC LV11M J and an M series indoor unit refer to the installation manual for the CONNECTION KIT Decorative panel OVERVIEW OF UNITS Model ...

Страница 6: ...5 35 50VE MLZ KA25 35 50VA Floor standing Capacity class kW 2 2 2 5 3 5 5 0 6 0 7 1 8 0 10 0 Connectable indoor unit lineup Heat pump inverter type Note The lineup of a connectable indoor unit depends on a district areas country Branch box PAC MK50BC 5 branches MAX 5 units PAC MK30BC 3 branches MAX 3 units Number of branches Indoor unit that can be connected Note A maximum of 2 branch boxes can be...

Страница 7: ...ystem wide capacity 6 3 to 16 2 kW 7 1 to 18 2 kW 8 0 to 20 2 kW 50 to 130 of outdoor unit capacity Branching pipe components CMY Y62 G E Branch header 2 branches CMY Y64 G E Branch header 4 branches CMY Y68 G E Branch header 8 branches Citymulti indoor units 2 CONNECTION KIT PAC LV11M J M series indoor unit M NET remote controller MA remote controller M series remote controller M series S series ...

Страница 8: ... W B 19 0 C Outdoor D B 35 C Heating Indoor D B 20 C Outdoor D B 7 C W B 6 C 3 Operating temperature range Notes D B Dry Bulb Temperature W B Wet Bulb Temperature 1 10 to 46 C D B When connecting PKFY P15 P20 P25VBM PFFY P20 25 32VKM and PFFY P20 25 32 VLE R M type indoor unit Cooling W B 15 to 24 C D B 5 to 46 C 1 Heating D B 15 to 27 C W B 20 to 15 C Indoor side intake air temperature Outdoor si...

Страница 9: ...ing 26 to 100 Heating 20 to 100 Cooling 24 to 00 Heating 18 to 100 Cooling 21 to 100 Heating 17 to 100 Motor output kW 2 9 3 5 3 9 Case heater kW 0 Lubricant FV50S 2 3litter External finish Galvanized Steel Sheet Munsell No 3Y 7 8 1 1 External dimension HxWxD mm 1 338 x 1 050 x 330 25 in 52 11 16 x 41 11 32 x 13 1 Protection devices High pressure protection High pressure Switch Inverter circuit CO...

Страница 10: ...ating 20 to 100 Cooling 24 to100 Heating 18 to 100 Cooling 21 to 100 Heating 17 to 100 Motor output kW 2 9 3 5 3 9 Case heater kW 0 Lubricant FV50S 2 3litter External finish Galvanized Steel Sheet Munsell No 3Y 7 8 1 1 External dimension HxWxD mm 1338 x 1050 x 330 25 in 52 11 16 x 41 11 32 x 13 1 Protection devices High pressure protection High pressure Switch Inverter circuit COMP FAN Overcurrent...

Страница 11: ... calculated as follows by using the formula in 4 1 2 1 Model 25 16 33 o 2 75 kW Model 50 16 33 o 5 41 kW 2 8 16 8 5 6 16 8 6 3 19 0 3 2 19 0 2 Sample calculation 1System assembled from indoor and outdoor unit in this example the total capacity of the indoor units is greater than that of the outdoor unit Outdoor unit PUMY P125YKM1 Indoor unit PKFY P25VBM E o 2 PLFY P50VLMD E o 2 2According to the c...

Страница 12: ...it 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 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 Discharge C 67 0 71 9 69 7 72 1 70 7 73 2 Heat e...

Страница 13: ...4 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 3 0 3 5 Input k...

Страница 14: ...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 P112YKM PUMY P112VKM Heating 220V 230V 240V 380V 400V 415V 4 3 2 PUMY P112VKM1 BS PUMY P112YKM1 BS heating OC...

Страница 15: ... 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 8 0 10 0 12 0 14 0...

Страница 16: ...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 Heating PUMY P125YKM PUMY P125VKM 220V 230V 240V 380V 400V 415V 4 3 4 PUMY P125VKM1 BS PUMY P125YKM1 BS heati...

Страница 17: ...acity 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 Total capacity of ...

Страница 18: ... 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 PUMY P140YKM PUMY P140VKM Heating 220V 230V 240V 380V 400V 415V 4 3 6 PUMY P140VK...

Страница 19: ...by the ratio between the individual capacity at the rated time and the total capacity at the rated time individual capacity at the rated time Individual capacity under stated conditions total capacity under the stated conditions o total capacity at the rated time Rated cooling capacity Rated heating capacity Indoor D B 27 C W B 19 C Outdoor D B 35 C Indoor D B 20 C Outdoor D B 7 C W B 6 C 24 24 20...

Страница 20: ... length for type P112 125 140 length of piping to farthest indoor unit 0 3 o number of bends in the piping m Length of piping to farthest indoor unit type P112 to P140 150 m 4 4 3 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 obt...

Страница 21: ...10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 PUMY P125VKM1 BS PUMY P125YKM1 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 NOISE OCT...

Страница 22: ...upply Ground for the branch box power supply Handle for moving Handle for moving Ground for the transmission line Ground for concentration control Ground for the power supply GR marking position Service panel 362 1050 26 1338 1 426 1 510 1062 369 632 Rear Air Intake Handle for moving Handle for moving Drain hole 5 33 Bottom piping hole Knock Out 86 81 45 160 160 160 110 154 136 92 Min 150 Min 500 ...

Страница 23: ...32 Side Air Intake Installation Feet 2 U Shaped notched holes Foundation Bolt M10 2 12 36 Oval holes Foundation Bolt M10 Rear Air Intake Side Air Intake Air Discharge 417 330 25 70 42 56 370 28 225 225 600 19 33 53 56 0 Rear Air Intake Handle for moving Handle for moving Drain hole 5 33 Bottom piping hole Knock Out 81 86 154 136 45 160 160 160 110 Example of Notes Min 15mm Min 1000mm Min 150mm Min...

Страница 24: ... 4 5 6 7 8 Example When the compressor and SV1 are turned during cooling operation Bit Indication 1 Compressor operated 2 52C 3 21S4 4 SV1 5 SV2 6 7 8 Always lit 2 During normal operation The LED indicates the drive state of the controller in the outdoor unit 3 When fault requiring inspection has occurred The LED alternately indicates the inspection code and the location of the unit in which the f...

Страница 25: ... 3 1 3 1 3 2 1 3 1 2 BLK BLU WHT RED BLK WHT RED LI1 POWER SUPPLY 3N 400V 50Hz LI2 LI3 NI TB1 L1 L2 L3 N GD1 BLK LO1 LO2 LO3 GRN YLW RED RED YLW YLW P B N F BLK WHT U V W TB U TB V TB W RED M1 M2 S TB3 TO INDOOR UNIT CONNECTING WIRES DC 30V Non polar TO BRANCH BOX FOR CENTRALIZED CONTROL DC 30V Non polar M1 M2 S TB7 2 2 2 2 2 CN51 WHT SW2 SW8 SW1 SW7 SW3 SW4 SWU2 SWU1 TRANS LED1 CN2 RED CN4 WHT LE...

Страница 26: ...City Multi indoor unit 1 4 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 Address SW 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 Address SW 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 Address SW 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 Address SW SW1 ON 1 2 3 4 5 6 SW1 ON 1 2 3 4 5 6 City Multi Indoor unit 009 City Multi Indoor unit 010 MA remote controller City Multi 001 050 For centralized management 061 Outdoo...

Страница 27: ...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 Strainer Thermistor TH2 HIC pipe Refrige...

Страница 28: ...iner Strainer Strainer Strainer Thermistor TH2 HIC pipe Stop valve Service port Capillary tube Accumulator Strainer Refrigerant flow in cooling Refrigerant flow in heating Thermistor TH8 Heatsink 7 3 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 ...

Страница 29: ... 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 outdoor unit 2 Valve size for branch unit Different diameter j...

Страница 30: ...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 Main 151...

Страница 31: ...ss is 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 ...

Страница 32: ...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 oth...

Страница 33: ...al blocks 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 0...

Страница 34: ...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 Connect terminals 1 and 2 on transmission cable terminal block TB...

Страница 35: ...r unit of the same group 3 MA remote controller or more cannot be connected with the M NET contrl 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 ...

Страница 36: ...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...

Страница 37: ...L7 500 m 1 25 E more Longest transmission cable length M NET cable L1 and L3 L4 and L6 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...

Страница 38: ...o 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 address of conn...

Страница 39: ...S M1M2 S TB3 M1M2 S M1M2 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 TB3A S1 S2 TB15 1 2 A B A B A B A A B B TB15 1 2 TB15 1 2 TB15 1 2 TB15 1 2 S3 TB3A S1 S2 S3 TB3A S1 S2 S3 TB3A S1 S2 S3 TB3A S1 S2 S3 TB3A S1 S2 S3 TB3A S1 S2 S3 TB3A 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 M...

Страница 40: ...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 shou...

Страница 41: ...RC MA RC WL RC WL RC 05 A IC 06 A IC 07 A IC 08 S1 S2 S3 TB3A S1 S2 TB15 1 2 A B A B A B A B TB15 1 2 TB15 1 2 TB15 1 2 TB15 1 2 MA RC A B TB15 1 2 S3 TB3A S1 S2 S3 TB3A S1 S2 S3 TB3A S1 S2 S3 TB3A S1 S2 S3 TB3A S1 S2 S3 TB3A S1 S2 S3 TB3A 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 ...

Страница 42: ... into remote controller s Never touch the on off switch of the remote controller s Refer to 8 1 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 proce...

Страница 43: ...ode Check the cold air blow off Heat mode Check the heat blow off 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 automa...

Страница 44: ...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 the group The Lossnay unit will not operate if th...

Страница 45: ... after completing 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 in...

Страница 46: ...le Check delay code 4350 4400 Rotational frequency of outdoor fan motor Check delay code 4500 5101 Air inlet thermistor trouble TH21 or Compressor temperature thermistor TH4 open short Check delay code 1202 5102 Liquid pipe temperature thermistor trouble TH22 Suction pipe temperature thermistor TH6 open short Check delay code 1211 5103 Gas pipe temperature thermistor trouble TH23 5105 Outdoor liqu...

Страница 47: ...ure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 0403 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 cir...

Страница 48: ...n object Refrigerant shortage while in heating operation 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 Compressor temperature trouble Yes Yes No Yes Yes No No No Is 5101 displayed when restarted Is the outdoor stop valv...

Страница 49: ...ue 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 in...

Страница 50: ...thermistor It detects lower temperature than actual temperature Indoor LEV performance failure Malfunction of fan driving circuit SV1 performance failure Defective low pressure sensor Malfunction of low pressure sensor input circuit on outdoor multi controller circuit board Diagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Di...

Страница 51: ...detected Is the voltage normal Is it free from any trace of over heating or burning Solve the short cycle Wash the outdoor heat exchanger Defective pipes Replace the TH7 Replace the indoor LEV Replace the indoor controller board Disconnect the outdoor temperature thermistor wiring and check the resistance Disconnect the indoor LEV wiring to check the resistance Check the voltage and appearance of ...

Страница 52: ...cing boards Diagnosis Remedy No Yes Yes No Continued from the previous page 63L equipped model Is there a resistance detected Is the connector for outdoor multi controller circuit board 63L disconnected or loose Replace the SV1 Reconnect the connector or connect it tightly Replace the outdoor multi controller circuit board Check the resistance of SV1 52 OCH576 ...

Страница 53: ...on indoor unit Malfunction or locked indoor fan motor Decreased airflow caused by defective inspection of outdoor temperature thermistor It detects lower temperature than actual temperature Indoor LEV performance failure Malfunction of fan driving circuit SV1 performance failure Defective high pressure sensor Defective high pressure sensor input circuit on outdoor multi controller circuit board Di...

Страница 54: ...an 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 ...

Страница 55: ...ny 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 th...

Страница 56: ...here a voltage detected Replace the SV1 Replace the 63HS Replace the outdoor multi controller circuit board Yes No 63H equipped model 63HS non equipped 63HS equipped model 63H non equipped Is the connector for outdoor multi controller circuit board 63H disconnected or loose Reconnect the connector or connect it tightly Replace the outdoor multi controller circuit board Check the 63HS voltage Is th...

Страница 57: ...loose 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 No Yes No Yes No Yes Is the TH4 wiring disconnected Is the resistance normal Is there any abnormality such as a half d...

Страница 58: ...of 2 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 controller board Check the 63HS v...

Страница 59: ...e 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 Yes Yes Is the outdoor stop valve ball valve fully open Is there a refr...

Страница 60: ...ltage 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 indoor LEV wiring and check t...

Страница 61: ...ve is blocked Mulfunction of outdoor LEV LEV1 blockage TH21 Indoor intake temperature thermistor TH22 Indoor liquid pipe temperature thermistor TH23 Indoor gas pipe temperature thermistor 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 stop valve liquid gas fu...

Страница 62: ...e outdoor power circuit board TH21 Indoor intake temperature thermistor TH22 Indoor liquid pipe temperature thermistor TH23 Indoor gas pipe temperature thermistor 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 l...

Страница 63: ...edy 2500 Water leakage No No No No Yes Yes Yes Yes Yes No Are there 2 or more indoor units with different refrigerant connected Check the temperature of TH22 23 if they are within appropriate range Are they within the range Does the drain pump work Is the drain level unusually high Are the refrigerant piping and the indoor outdoor connector connected in the same unit Solve the reverse connection o...

Страница 64: ...t when controller board is defective in a usual case the check code 2500 is not displayed No abnormality The cause might be that the drain level was unusually high Restore the controller board and operate the unit Drain sensor Disconnect the connector for drain sensor CN31 and short circuit between pins 1 2 on the indoor controller board then turn ON the emergency operation switch SWE Float switch...

Страница 65: ...isfied while the above mentioned detection is performed aThe drain sensor detects to be soaked in the water 10 times in a row bDetected that liquid pipe temperature room temperature 10 for 30 minutes constantly Notes 1 When the drain sensor detects to be NOT soaked in the water the detection record of a and b will be cleared 2 Drain pump abnormality above 1 3 is detected before it becomes an outdo...

Страница 66: ...Ω Temperature C Resistance k 0 20 20 40 60 80 0 2 1 3 4 5 6 7 8 9 10 Drain Sensor Drain sensor models Drain overflow protection 2502 Continued from the previous page No Is the check code 2502 still displayed No abnormality The cause might be that the drain level was unusually high Restore the drain sensor and operate the unit Disconnect the connector for drain sensor CN31 and short circuit between...

Страница 67: ...er OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Chart 3 of 3 Yes Yes No Is 200 V AC output Check the branch connector for breakage or contact failure Replace the drain pump Check the voltage on both ends of the branch connector Continued from the previous page 67 OCH576 ...

Страница 68: ... detecting abnormality displays 2502 6Detection timing of forced outdoor unit stop Constantly detected during unit operation and stop 7Releasing of forced outdoor unit stop Reset power supply of both abnormal indoor unit and its outdoor unit in same refrigerant system Forced outdoor unit stop cannot be released by remote controller OFF Note Above mentioned 1 3 and 4 7 are detected independently 1 ...

Страница 69: ...ce if the moving parts does not work No abnormality The cause might be that the drain level was unusualy high Restore the float switch and operate the unit Open Short Replace the float switch Disconnect the connector for float switch CN4F and short circuit between pins 3 4 on the indoor controller board then start cooling operation Continued from the previous page No Yes No No Yes Yes Yes Is the c...

Страница 70: ...r replacing boards Diagnosis Remedy Yes How to check the resistance Disconnect the connector for drain sensor from the indoor controller board to check the resistance using a tester Temperature Resistance 0 6 0 kΩ 10 3 9 kΩ 20 2 6 kΩ 25 2 2 kΩ 30 1 8 kΩ 40 1 3 kΩ 60 0 6 kΩ Temperature C Resistance k 0 20 20 40 60 80 0 2 1 3 4 5 6 7 8 9 10 Drain Sensor No Yes No Check the drain sensor connector CN3...

Страница 71: ... connecting disconnecting any connectors or replacing boards Diagnosis Remedy 4100 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 Is it connected properly Open the stop valve liquid gas fully Ensure power supply from the facility Connect the wiring properly then turn the power back ON Ch...

Страница 72: ...g boards Diagnosis Remedy Chart 2 of 2 Yes Yes No No Are they set properly Is the compressor faulty grounded Set the model selection switch correctly then restart Replace the compressor Defective compressor Replace the outdoor power circuit board Defective outdoor power circuit board Check whether the compressor is faulty grounded or not Continued from the previous page 72 OCH576 ...

Страница 73: ...board Diagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 4210 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 power supply facility check for pow...

Страница 74: ...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 circuit board Complete Check the operation of indoor outdoor fan motors Check for indoor outdoor short cycle Disconnect the compressor wiring from the outdoor power circuit board then check t...

Страница 75: ...se Power synchronization signal error The black square indicates a switch position Chart 1 of 2 No No No No No Yes Yes Yes Yes Yes 6 1 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 abnorm...

Страница 76: ...The difference of the voltage between the one read by the LED1 and 2 and the one at the testpoints listed above is large Malfunction of noise filter ACCT 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 circuit board Replace the outdoor power circuit board Tro...

Страница 77: ... 4230 Heat sink temperature trouble No Yes No No Yes Yes No No Yes Yes Is 5110 displayed when restart 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 to the diagnosis of check code 5110 Refer to the diagnosis of check code 4400 Rep...

Страница 78: ...y connectors or replacing boards Diagnosis Remedy 4250 Power module trouble Yes Yes Yes Yes Yes No No No No Is the stop valve liquid gas fully open Is the power supply voltage normal Are the wirings normal Does it operate normally Open the stop valve liquid gas fully Ensure power supply from facility Connect the compressor wiring U V and W phase properly then turn the power back ON Replace the out...

Страница 79: ...se melting Is there any abnormality such as a disconnection looseness or breakage Is the voltage normal Replace the outdoor multi controller circuit board Replace the 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 moto...

Страница 80: ...ure 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 controll...

Страница 81: ...erature 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 controller circ...

Страница 82: ...trouble TH23 Detected in indoor unit No No Yes Yes Is it connected properly Is the resistance of the thermistor normal Connect the wiring properly Replace the thermistor Replace the indoor controller board Check the connection of thermistor wiring for looseness or disconnection Thermistors for low temperature Check code and trouble Check code Thermistor Connector Trouble 5101 TH21 CN20 Air inlet t...

Страница 83: ...oor 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 a breakage ...

Страница 84: ...o 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 suspected Check...

Страница 85: ...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 suspected Chec...

Страница 86: ...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 thermistor circuit No abnormality...

Страница 87: ...ller 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 the ...

Страница 88: ...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 ...

Страница 89: ... connectors or replacing boards Diagnosis Remedy Applicable only for P112 125 140V model No No Yes Yes Does it satisfy the condition 1 in the lower right Is there any abnormality such as a disconnection or looseness The power supply voltage is decreased or abnormal Check the power supply facility Connect the compressor wiring properly Replace the outdoor power circuit board Malfunction of current ...

Страница 90: ...ng boards Diagnosis Remedy 5701 Models equipped with the float switch Contact failure of drain float switch Models equipped with the float switch Check if it is short circuited between pins 3 4 of the connector CN4F on the float switch side Replace the indoor controller board No No Yes Yes Is the check code 5701 still displayed Is it short circuited No abnormality A connector or wiring contact fai...

Страница 91: ...connectors or replacing boards Diagnosis Remedy 6600 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 abn...

Страница 92: ...Diagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 6602 Transmission processor H W 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 fo...

Страница 93: ...onnect 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 Transmission bus BUSY error No Yes Yes Yes No No Is the transmission line miswired Is the transmission line miswired Does it operate normally Correct the wiring then turn...

Страница 94: ...ectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 6606 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 fac...

Страница 95: ...on 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 con...

Страница 96: ...bnormality 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 the...

Страница 97: ...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 lin...

Страница 98: ... the controller board which the displayed 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 Fre...

Страница 99: ...rds Diagnosis Remedy No response frame error Yes Yes Yes Yes No No No No Does it operate normally The transmission line is connected properly It is not exceeding the tolerance Is correct kind of transmission line used Replace the controller board Defect of the controller which the displayed address attribute belong to Connect the transmission line properly Correct it within the tolerance Replace i...

Страница 100: ... 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 migh...

Страница 101: ...ve 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 101 OCH576 ...

Страница 102: ...is 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 sec at maximum until the result is displayed No abnormality A connector or wiring contact failure is sus...

Страница 103: ...d 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 103 OCH576 ...

Страница 104: ...es Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 7100 Total capacity error No Yes Yes No No Yes 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 ...

Страница 105: ...e 3 to 28 When connecting via branch box P15 to P100 model code 3 to 20 Diagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 7101 Capacity code error Yes No Is it set properly Set the switch properly The model code of the connected indoor unit can be displayed by an operation of SW1 on the outdoor unit Check the...

Страница 106: ...iagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 7102 Connecting excessive number of units Yes No No Yes Is an indoor unit connected Does it exceed the limit Connect indoor unit Connect less number of units than the limit The model code of the connected indoor unit can be displayed by an operation of SW1 on t...

Страница 107: ...F before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 7105 Address setting error 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 outdoor multi controller circuit board Check whether the o...

Страница 108: ...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...

Страница 109: ... 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 ...

Страница 110: ...nd 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...

Страница 111: ...ward 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 f...

Страница 112: ... 2 Mode setting Heating Cooling SW4 SW8 Model Switch 1 6 MODEL SELECTION 1 ON 0 OFF Before the power is turned ON Initial settings Set for each capacity SW5 Function switch 1 Demand control setting for Australia Australia setting Normal 2 Can be set when off or during operation Initial settings Turn ON to activate the demand control for Australia Do not turn this ON if the unit is in outside Austr...

Страница 113: ...densation Switching it to reduce the performance it makes the performance insufficient 8 Switching 2 the target evaporation temperature ETm Enable Normal SW7 function switch 1 Ignore current sensor abnormality Enable Normal After turning the power ON Initial settings To perform a test run for electrical parts alone without running the compressor Make sure to connect the connectors to the compresso...

Страница 114: ...de 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...

Страница 115: ...e resistance between the terminals with a tester At the ambient temperature 20 Normal 1182 5 83 Abnormal Open or short Solenoid valve coil Bypass valve SV1 Linear expansion Valve LEV A Linear expansion Valve LEV B Refer to 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 ...

Страница 116: ...connector VDC 310 340 V DC Y VDC between 1 and 4 of the fan connector VDC 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 No NG NG Wiring contact check Contact of fan motor connector CNF1 2 Fuse check Check the fuse F500 on outdoor multi controller circuit board Recover wiring Replace the outdoor multi controller circ...

Страница 117: ...0 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 5 2 5 5 2 5 4 5 Vout V PRESSURE MPa 3 2 1 WHT BLU BLK SENSOR 5 V DC GND 63HS Vout MICRO PROCESSOR OUTDOOR MULTI CONTROLLER CIRCUIT BOARD 3 1 5 V DC 2 1 Output Vout DC HIGH PRESSURE SENSOR 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 ...

Страница 118: ...en 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 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 VDC TEST POINT1 Voltage between pins of C510 310 340 V DC Y 310 350 V DC V Same as CNF1 2 1 4 VFG TEST POINT4 Voltage between pin3 and pin4 of PC511 or PC512 Same as ...

Страница 119: ...r 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 N2 Connect to the smoothing capacitor CB CN4 Connect to the outdoor multi controller circuit board CN4 Brief Check of POWER MODULE Usually they are in a state of being short ...

Страница 120: ...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...

Страница 121: ...MY P140VKM1 BS PUMY P140YKM1 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 OCH576 ...

Страница 122: ... to the outdoor multi controller circuit board CNDC LO1 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 380 400 415 V AC OUTPUT Connect to the outdoor power circuit board and ACL TB L1 TB L2 TB L3 CNCT Primary current Connect to the outdoor power circuit board CN5 CNL Connect to the ACL4 CNAC1 220 230 240 V AC Connect to the M NET power circuit board CN1 GD3 Connect to the electrical parts box 122 Ou...

Страница 123: ...elay Outdoor fan rotation frequency abnormality delay TH7 abnormality delay TH8 abnormality delay Display all abnormalities remaining in abnormality delay 9 10010000 Abnormality delay history 2 Heat sink overheating delay Compressor over current interception delay Voltage abnormality delay Insufficient refrigerant amount abnormality delay Current sensor primary current abnormality delay 63HS abnor...

Страница 124: ...prevention SHd 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 47 11110100 State of compressor frequency control 1 Condensing temperature limit control Compressor temperature control Discharge temp heating backup Pd abnormality control heati...

Страница 125: ...ency 0 FF 16 progressive Display of actual operating frequency 65 10000010 Target frequency 0 255 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 Display of opening pulse of indoor LEV 70 01100010 IC2 LEV Opening pulse 71 11100010 IC3 LEV Opening pulse 72 00010010 IC4 LEV Ope...

Страница 126: ...Target indoor SC SH IC2 C 110 01110110 Target indoor SC SH IC3 C 111 11110110 Target indoor SC SH IC4 C 112 00001110 Target indoor SC SH IC5 C 113 10001110 Indoor unitcheck status No 9 unit check No 10 unit check No 11 unit check No 12 unit check Check light on Normal light off 114 01001110 Indoor unit operation mode No 9 unit mode No 10 unit mode No 11 unit mode No 12 unit mode COOL DRY light on ...

Страница 127: ...all thermistors and SC SH at time of abnormality delay 137 10010001 TH4 Compressor sensor data at time of abnormality delay 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 time of abnormality d...

Страница 128: ...1000101 IC9 SC SH 99 99 999 9 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 Display of version data of ROM 171 11010101 ROM type Display of ROM type 172 00110101 Check sum mode Display of check sum code of ROM 173 10110101 IC9 TH23 Gas C 99 99 999 9 Short open 99 9 or 999 9 Display if detection data from each i...

Страница 129: ...or data at time of abnormality 204 00110011 TH8 Heat sink sensor data at time of abnormality 205 10110011 OC SC cooling at time of abnormality 99 99 999 9 Display of data from high pressure sensor all thermistors and SC SH 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 IC4...

Страница 130: ... LEV at time of abnormality delay 236 00110111 IC7 LEV opening pulse abnormality delay 237 10110111 IC8 LEV opening pulse abnormality delay 238 01110111 IC6 SC SH at time of abnormality delay C 99 99 999 9 Display data from high pressure sensor all thermistors and SC SH at time of abnormality 239 11110111 IC7 SC SH at time of abnormality delay C 240 00001111 IC8 SC SH at time of abnormality delay ...

Страница 131: ...e not fixed firmly it may cause heating or fire Be sure to use the appropriate type of overcurrent protection switch Note that generated overcurrent may include some amount of direct current Caution Some 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 co...

Страница 132: ...S1 S2 S3 C D L N A B D D D D L N S1 S2 S3 S1 S2 S3 S1 S2 S3 C L N S1 S2 S3 S1 S2 S3 S1 S2 S3 C D E L N NO 3N 380 400 415 V 50 Hz A B A B D L N S1 S2 S3 S1 S2 S3 S 1 S2 S3 C D Grounded When power is supplied from the outdoor unit When power is supplied separately PUMY P YKM1 series Pull box Grounded Grounded Schematic Drawing of Wiring When using a Branch Box and M NET control indoor unit example E...

Страница 133: ...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 Quantity of Type3 V2 Quantity of Others V3 Wire length km G1 Current sensitivity 30 or less 30 mA 0 1 sec or less 100 or less 100 mA 0 1 sec...

Страница 134: ... control cable Shielding wire 2 core CVVS CPEVS or MVVS Cable diameter More than 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 Wir...

Страница 135: ...eakage Breaker for Wiring and Current Leakage 1 25 mm2 or more Shield cable 3N 380 400 415 V 50 Hz 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...

Страница 136: ...g 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 to...

Страница 137: ...ation 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 indoor units C...

Страница 138: ...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...

Страница 139: ...rant 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 refriger...

Страница 140: ...nit 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 spaces provided on the Refrigerant amount plate on the outdoor unit Calculation of additional refrigerant charge Calculate the add...

Страница 141: ... 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 From Outdoor Unit to Branch box or Branch header A to ...

Страница 142: ...es 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 Branch header to Indoor Unit a to k 2 Refrigerant Piping D...

Страница 143: ... 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...

Страница 144: ...or fixing screws Photo 4 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 liquid pipe TH3 Thermistor ...

Страница 145: ...arts box See Photo 6 5 Pull out the thermistor Ambient TH7 from the sensor holder Note When replacing thermistor Ambient TH7 replace it together with thermistor Suction pipe TH6 since they are combined together Refer to procedure No 4 above to remove thermistor Suction pipe TH6 Photo 8 Lead wire of thermistor Ambient TH7 Sensor holder Clamps High pressure sensor 63HS 4 Removing the thermistor Suct...

Страница 146: ...rmistor Outdoor liquid pipe TH3 and thermistor Compressor TH4 from the sensor holder See Photo 7 and 9 Thermistor Outdoor liquid pipe TH3 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...

Страница 147: ...Remove 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 remov ing 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 pip...

Страница 148: ...inlet and 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 nuts 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...

Страница 149: ... 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 Pull out the disconnected wire from the electrical parts box 5 Remove the terminal cover and disconnect th...

Страница 150: ...top of the electrical parts box 5 Pull out the thermistor Suction pipe TH6 from the sen sor holder Note When replacing thermistor Suction pipe TH6 replace it together with thermistor Ambient TH7 since they are combined together Refer to procedure No 5 below to remove thermistor Ambient TH7 Electrical parts box Clamps 5 Removing the thermistor Ambient TH7 1 Remove the service panel See Photo 1 2 Re...

Страница 151: ...mistor Outdoor liquid pipe TH3 and thermistor Compressor TH4 from the sensor holder See Photo 7 and 9 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 and then remove the valve bed ...

Страница 152: ...anel 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 not oxidized 11 Removing the low pressure sensor 63LS 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 3 right side panel fixing screws 5 o 12 in the rear of the un...

Страница 153: ...13 Removing the reactor DCL 1 Remove the service panel See Photo 1 2 Disconnect the lead wires from the reactor 3 Remove the 4 screws that fix the reactor box See Photo 13 4 Remove the reactor box Note 1 The reactor is very heavy Be careful when handling it 4 way valve OCH576 ...

Страница 154: ... inlet and 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 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 panel fixing screws 5 12 and remove the front cover panel See Photo...

Страница 155: ...155 OCH576 ...

Страница 156: ...ELECTRIC CORPORATION Distributed in Oct 2014 No OCH576 Made in Japan New publication effective Oct 2014 Specifications are subject to change without notice HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO100 8310 JAPAN TM ...

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