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-3. Tools specifically for R407C

●

For servicing, use the following tools for R407C

●

The above tools specifically for R407C must not be used for R22. Doing so will
cause malfunction of the unit.

●

For the above vacuum pump (

✽

2) and vacuum pump adapter (

✽

3) , those for

R22-type units can be used for R407C-type. However, they must be used
exclusively for R407C and never alternately with R22.

-4. For tubing installation procedures

●

When the tubes are connected,

always apply HAB oil on the flare portions to improve the sealing of

tubing.

The following is the HAB oil generally used:

Esso: ZERICE S32

For details on tubing installation procedures, refer to the installation manuals attached to the indoor

unit and outdoor unit.

Tool Distinction

Tool Name

• Gauge manifold

• Charging hose

• Gas leak detector

• Refrigerant cylinder

• Charging cylinder

Tools specifically for R407C

• Refrigerant recovery unit
• Vacuum pump with anti-reverse flow (

✽

(Solenoid valve-installed type, which prevents oil from flowing back into the unit

when the power is off, is recommended.)

• Vacuum pump (

✽

2) ..... can be used if the following adapter is attached.

• Vacuum pump adapter (reverse-flow prevention adapter) (

✽

3).

(Solenoid valve-installed adapter attached to a conventional vacuum pump.)

• Electronic scale for charging refrigerant

• Flare tool

• Bender

Tools which can be commonly • Torque wrench

used for R22 and R407C

• Cutter, Reamer

• Welding machine, nitrogen gas cylinder

CAUTION

NOTE

Содержание DKR5555C

Страница 1: ...08180132 1 01 2003 TECHNICAL DATA SERVICE MANUAL Outdoor Unit Dual System Kit MULTI SPLIT SYSTEM AIR CONDITIONER OUTDOOR UNIT DUAL SYSTEM KIT GRV340M3C5 DKR8585C GRV227M3C5 DKR5555C...

Страница 2: ...ARNING When Transporting Be careful when picking up and moving the indoor and outdoor units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin alu...

Страница 3: ...ctor attachment for servicing 33 8 2 Refrigerant recovery 34 8 3 Service on outdoor unit 34 8 4 Evacuation using vacuum pump 34 8 5 Refrigerant charging 35 8 6 Reattaching green connectors for operati...

Страница 4: ...tubing length at shipment m A B 15 C 7 5 Refrigerant tube Narrow tube mm in A B C 6 35 1 4 diameter Wide tube mm in A B C 9 52 3 8 Refrigerant tube kit Optional Dual system kit Non GRV227M3C5 Unit dim...

Страница 5: ...n sound dB A 54 Refrigerant tubing connections Flare type Max allowable tubing length at shipment m A B 15 C1 C2 15 Refrigerant tube Narrow tube mm in A B C1 C2 6 35 1 4 diameter Wide tube mm in A B C...

Страница 6: ...00 Refrigerant control Capillary tube Operation sound dB A 54 Refrigerant tubing connections Flare type Max allowable tubing length at shipment m A B 15 C 7 5 Refrigerant tube Narrow tube mm in A B C...

Страница 7: ...ion sound dB A 54 Refrigerant tubing connections Flare type Max allowable tubing length at shipment m A B 15 C1 C2 15 Refrigerant tube Narrow tube mm in A B C1 C2 6 35 1 4 diameter Wide tube mm in A B...

Страница 8: ...temp Open C 145 5 115 5 devices Close C 69 11 95 10 Operating amp Ambient temp 25 C Trip in 6 to 16 sec at 16 5A Run capacitor Q ty F 22 5 2 VAC 450 2 Type Propeller Q ty Dia mm 1 400 Fan motor model...

Страница 9: ...Ambient temp 25 C Trip in 6 to 16 sec at 35A Trip in 6 to 16 sec at 40A Run capacitor Q ty F 40 35 VAC 450 450 Type Propeller Q ty Dia mm 2 460 Fan motor model Q ty KFC6T 91C5P 1 upper KFC6T 9K5P 1 l...

Страница 10: ...F Valve Rating AC 240V 50 60Hz 7 6W 45 35mA Coil resistance k at 20 C 1 15 7 SAP CMR3448E only GRV227M3C5 R1 2 GRV340M3C5 R1 2 and R3 4 GRV227M3C5 SVA B GRV340M3C5 SVA B C D PCB Timer FROM 01 01 2003...

Страница 11: ...r intake Air discharge 538 146 93 40 40 40 40 40 4 12 Holes Wide tube service valve 9 52 3 8 Narrow tube service valve 6 35 1 4 Wide tube service valve 9 52 3 8 Narrow tube service valve 6 35 1 4 Wide...

Страница 12: ...58 250 250 940 340 100 83 450 400 380 1235 660 170 110 130 A B C Wide tube service valve 9 52 3 8 Narrow tube service valve 6 35 1 4 Wide tube service valve 9 52 3 8 Narrow tube service valve 6 35 1 4...

Страница 13: ...it C1 9 52 3 8 Narrow tube service valve Unit C1 6 35 1 4 Wide tube service valve Unit C2 9 52 3 8 Narrow tube service valve Unit C2 6 35 1 4 Charge port UNTIL 31 12 2002 6 35 1 4 Wide tube service va...

Страница 14: ...C1 9 52 3 8 Narrow tube service valve Unit C1 6 35 1 4 Wide tube service valve Unit C2 9 52 3 8 Narrow tube service valve Unit C2 6 35 1 4 Charge port UNTIL 31 12 2002 6 35 1 4 Wide tube service valve...

Страница 15: ...Combination Wide tube service valve Narrow tube service valve Capillary tube Outdoor Unit Wide tube O D 9 52mm 3 8 Condenser Compressor 2 Accumulator B Evaporator Indoor Unit A Strainer A A B Evaporat...

Страница 16: ...vice valve Capillary tube Outdoor Unit Wide tube O D 9 52mm 3 8 Condenser Compressor 2 Accumulator B Evaporator Indoor Unit A Strainer A A B Evaporator Indoor Unit B SVA SVB Narrow tube O D 6 35mm 1 4...

Страница 17: ...or 2 Accumulator B Evaporator Indoor Unit A Strainer A A B Evaporator Indoor Unit B SVA SVB Narrow tube O D 6 35mm 1 4 Compressor 1 Accumulator Strainer C C S S Wide tube O D 9 52mm 3 8 SVC1 SVC2 S S...

Страница 18: ...Unit A Strainer A A B Evaporator Indoor Unit B SVA SVB Narrow tube O D 6 35mm 1 4 Compressor 1 Accumulator Strainer C C S S SVC S SVD S Capillary for liguid injection Capillary for liguid injection Wi...

Страница 19: ...ions Indoor Air Temperature 32 C D B 23 C W B Outdoor Air Temperature 43 C D B Number of indoor unit 3 Units 4 Units A B C A B C1 C2 Rating Conditions Running amp A 9 2 9 6 Power input kW 2 00 2 10 Fu...

Страница 20: ...GRV227M3C5 UNTIL31 12 2003 GRV340M3C5 FROM31 12 2003 5 2 ELECTRICWIRINGDIAGRAM SYSTEMWIRINGDIAGRAM 20...

Страница 21: ...GRV340M3C5 ELECTRICWIRINGDIAGRAM 21...

Страница 22: ...22 Outdoor Unit DKR5555C UNTIL 31 12 2002 Outdoor Unit DKR5555C FROM 01 01 2003...

Страница 23: ...23 Outdoor Unit DKR8585C UNTIL 31 12 2003 Outdoor Unit DKR8585C FROM 01 01 2003...

Страница 24: ...24 SYSTEM WIRING DIAGRAM TP 8P 1 2 4 C B A B 1 2 4 1 2 4 TP 7P L N A 1 2 4 3 3 3 1 2 4 N L 3 1 2 4 N L 3 1 2 4 N L 3 INDOOR UNIT POWER SUPPLY 220 240 V 50 Hz OUTDOOR UNIT GRV227M3C5 WITH 3 INDOOR UNIT...

Страница 25: ...B 1 2 4 C2 1 2 3 3 3 4 B 1 2 4 5 1 2 4 1 2 4 TP 7P L N A 1 2 4 N L 3 1 2 4 N L 3 1 2 4 N L 3 1 2 4 N L 3 3 3 3 POWER SUPPLY 220 240 V 50 Hz DUAL KIT INDOOR UNIT OUTDOOR UNIT B SYSTEM WIRING DIAGRAM GR...

Страница 26: ...GRV340M3C5 WITH 3 INDOOR UNIT 1 2 4 1 2 B A 1 2 4 5 6 8 1 2 4 Unit A Earth ground Disconnect swith Field supply Indoor unit Outdoor unit Power supply 220 240 V 50Hz 3 3 3 L N Terminal 3P Terminal 8P T...

Страница 27: ...it will not start running again for at least 3 minutes even there has been an ON signal from one of the indoor units In order to save compressor power solenoid valve C SVC which is used as a bypass va...

Страница 28: ...tly connected to the indoor units from the outdoor unit 7 1 3 Check power supply Check that voltage is in specified range 10 of the rating Check that power is being supplied 7 1 4 Check lead wires and...

Страница 29: ...ts in outdoor unit NO NO Set circuit breaker to OFF Measure insulation resistance of electrical parts in indoor unit 1 Remove both power supply wires and inter unit wires from terminal plate in outdoo...

Страница 30: ...very or contact power company Circuit breaker is tripped Measure coil resistance of power relay PR1 PR2 NO Reattach GRN GRN connectors Are green green connectors attached together in outdoor unit Fan...

Страница 31: ...rant gas shortage REP CE refrigerant gas Temperature of compressor is abnormally high Rotor may be locked up OLR 1 to 4 C2 C3 or C3 C4 Operate either indoor unit A or B Check to see if the lamp PW is...

Страница 32: ...rant gas Temperature difference between suction and discharge air is large enough approx 10 deg or more Check for clogging of air filter Measure temperature of suction and discharge air of air conditi...

Страница 33: ...d 9 3 8 1 3 Turn the disconnect switch ON to supply power single phase 220 240 V to the outdoor unit This makes it possible to force open two solenoid valves SVA and SVB in the refrigeration circuit F...

Страница 34: ...ow and wide tube service valves as indicated in table below Refer to Service Valve Construction shown later 8 4 2 Connect the vacuum pump and a manifold valve as shown in either Fig 9 2 or Fig 9 3 dep...

Страница 35: ...8 After removing the vacuum hoses from the service valves replace the flare nuts and bonnets on the valves The refrigerant circuit is now ready for charging 8 5 Refrigerant charging 8 5 1 After evacu...

Страница 36: ...nt of refrigerant at once may damage the compressor Always charge the unit at a constant charging rate of about 100 g 8 6 Reattaching green connectors for operation 8 6 1 Turn off the power source 8 6...

Страница 37: ...osition will differ depending on whether it is in gaseous or liquid phase and the basic performance of the air conditioner will be degraded if it is charged while the refrigerant is in gaseous state T...

Страница 38: ...tallation procedures refer to the installation manuals attached to the indoor unit and outdoor unit 38 Tool Distinction Tool Name Gauge manifold Charging hose Gas leak detector Refrigerant cylinder Ch...

Страница 39: ...quickly 3 Checking for sealing Use nitrogen gas for the pressurized gas and never use a refrigerant other than R407C Also do not use oxygen or any flammable gas 4 Evacuation Use a solenoid valve inst...

Страница 40: ...f the volume of refrigerant in the cylinder becomes less than 20 of the fully charged amount the composition of the refrigerant starts to change Thus do not use the refrigerant if the amount in the re...

Страница 41: ...ubes utilizing substitution with nitrogen N2 in the refrigerant circuit of the unit Leave ends of tubes open during welding 4 Checking for sealing Use nitrogen gas for the pressurized gas and never us...

Страница 42: ...ing the air conditioning unit Example In case of charging refrigerant to a unit requiring 0 76Kg using a capacity of 10Kg cylinder the minimum necessary amount for the cylinder is 0 76 10 x 0 20 2 76K...

Страница 43: ...ns given in 10 6 In case refrigerant is leaking and completely carry out repairs Only then should you recharge the refrigerant 9 8 Retro fitting existing systems 9 8 1 Use of existing units Never use...

Страница 44: ...Relay R2 Relay R1 Power relay PR2 Power relay PR1 Terminal Plate 3P To Power supply Terminal Plate 12P To Indoor Unit A B and either Indoor Unit C or Dual System Kit Electric Parts UNTIL 31 12 2002 C...

Страница 45: ...Compressor Motor Capacitor C4 Timer T Fan Motor Capacitor C1 Fan Motor Capacitor C2 Power relay PR1 Power relay PR2 Relay R4 Relay R3 Relay R2 Relay R1 35 F 40 F 5 F 5 F Electric Parts Terminal Plate...

Страница 46: ...Electric Parts Terminal Plate 1 5P To Outdoor Unit Terminal Plate 2 4P To Indoor Unit C1 Terminal Plate 3 4P To Indoor Unit C2 Solenoid coil SVC 1 Solenoid coil SVC 2 PCB Ass y Dual System Kit DKR5555...

Страница 47: ...where power supply lines are connected on the terminal plate Fig 12 2 11 1 3 Measurement of Insulation Resistance for Electrical Parts Disconnect the lead wires of the desired electric part from term...

Страница 48: ...the multimeter to the maximum value The capacitor is good if the pointer bounces to a great extent and then gradually returns to its original position The range of deflection and deflection time diffe...

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