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8. ARRANGEMENT OF ELECTRICAL COMPONENT

23

2
1

1 2 3 4

1 2 3 4

Terminal plate (4P)
(To indoor unit A)

Terminal plate (4P)
(To indoor unit B)

Relay (RB)
Relay (RA)

Compressor moter capacitor C3

Compressor moter capacitor C2

Overload relay 1

Overload relay 3

Fan moter
capacitor C1

Terminal plate (3P)
(From power supply)

Outdoor Unit GR247M2C5TAA

Electric Parts

Parts Layout in Unit

Compressor A (CMA)

Compressor B (CMB)

Fan motor

Heat exchenger coil

Summary of Contents for GR247M2C5TAA

Page 1: ...Unit GR247M2C5TAA MCAV127C5VAB Ceiling Mounted Floor Mounted KPAV128C5TAA 0 8180 051 0 04 2001 TECHNICAL DATA SERVICE MANUAL MCAV127C5VAB GR247M2C5TAA KPAV128C5TAA GR247M2C5TAA SPLIT SYSTEM AIR CONDI...

Page 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...

Page 3: ...6 3 Wiring instructions 17 7 TROUBLESHOOTING 7 1 Check before and after troubleshooting 18 7 2 Air Conditioner Does not operate 19 7 3 Some Parts of Air Conditioner does not operate 21 7 4 Air Condit...

Page 4: ...1 OPERATING RANGE 1 Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Cooling Maximum 32 C D B 23 C W B 43 C D B Minimum 19 C D B 14 C W B 19 C D B...

Page 5: ...2 0 12 1 Power input W 1 260 1 300 1 350 2 510 2 570 2 620 Power factor 97 94 92 96 93 90 C O P W W 2 8 2 7 2 7 2 7 2 7 2 6 Compressor locked rotor amperes A 33 33 33 66 66 66 Fan speeds Auto Hi Lo Co...

Page 6: ...C 69 11 95 5 Operating amp Ambient temp 25 C Trip in 6 to 16 sec at 21 A Run capacitor F 25 0 2 Q ty VAC 400 2 Type Propeller Q ty Dia mm 1 460 Fan motor model Q ty KFC6S 51B5P S 1 No of poles rpm 23...

Page 7: ...230 Nominal output W 10 Coil resistance Ambient temp 20 C BRN WHT 561 8 VLT WHT 197 4 VLT ORG 63 4 YEL ORG 155 7 YEL PNK 115 9 Safety devices Type Internal fuse Operating temp Open C 145 2 Close Run...

Page 8: ...p Open C 145 5 Close Automatic reclosing Run capacitor F 1 5 VAC 440 Flap Motor Model M2LJ24ZE31 Rating AC 208 230 V 50 60 Hz No of poles rpm 8 2 5 3 0 Nominal output W 3 2 5 Coil resistance Ambient t...

Page 9: ...nit GR247M2C5TAA 620 130 100 55 20 20 325 835 850 80 138 58 87 310 285 178 58 58 1 2 3 4 Narrow tube service valve 6 35 1 4 1 Wide tube service valve 12 7 1 2 Power supply wires connection 3 Inter uni...

Page 10: ...Indoor Unit KPAV128C5TAA Remote control unit 86 74 74 Center of tubing hole 75 4 places Wide tube 12 7 1 2 Narrow tube 6 35 1 4 Drain hose 26 74 74 900 86 41 41 190 680 18 5 61 172 5 Unit mm 7...

Page 11: ...Indoor Unit MCAV127C5VAB 58 5 99 5 805 177 41 0 41 0 270 Narrow tube 6 35 1 4 Wide tube 12 7 1 2 Center of tubing hole 2 places Drain hose 18 Remote control unit 18 5 61 172 5 Unit mm 8...

Page 12: ...nit GR247M2C5TAA 9 Outdoor Unit Wide tube O D 12 7 mm 1 2 Narrow tube O D 6 35 mm 1 4 Condenser Wide tube service valve Compressor A Accumulator Compressor B B A A Narrow tube service valve Capillary...

Page 13: ...gle phase 50Hz Number of Indoor Unit 1 Unit 2 Units Rating Conditions Running Amps A 6 0 12 0 Power Input kW 1 30 2 57 Full Load Conditions Running Amps A 7 3 14 7 Power Input kW 1 61 3 25 Rating Cond...

Page 14: ...ELAY B WHT BLK RED WHT BLK RED YEL WHT YEL BLU BRN PNK GRY CAPACITOR C1 CAPACITOR C3 CAPACITOR C2 THERMOSTAT 23S RED RED BRN BRN BLK RED RED BRN TERMINAL PLATE 3P GRN YEL RED RED BRN BRN BLU RED BRN B...

Page 15: ...MCAV127C5VAB Indoor Unit To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts WARNING KPAV128C5TAA 12...

Page 16: ...ng Characteristics Indoor inlet air D B temp C 11 10 9 8 7 6 5 4 3 25 30 35 40 45 50 Outdoor inlet air D B temp C Operating current A 12 Low pressure at wide tube service valve kg cm 2 G 32 27 21 32 2...

Page 17: ...nit MCAV127C5VAB 0 1 2 3 4 5 6 7 8 9 1 2 3 4 Horizontal distance m Axis air velocity m s Vertical distance m Axis air verocity Flap angle 0 30 Room air temp 27 C Fan speed High 14 5 4 Air Throw Distan...

Page 18: ...2 3 4 Horizontal distance m Horizontal distance m Axis air velocity m s Vertical distance m Axis air velocity m s Vertical distance m Room air temp 27 C Fan speed High Axis air verocity Flap angle 60...

Page 19: ...room around the unit for air intake exhaust and possible maintenance Fig 3 provide a solid base concrete block 10 x 40 cm beams or equal a minimum of 10 cm above ground level to reduce humidity and pr...

Page 20: ...hould be allowed to touch refrigerant tubing the compressor or any moving parts of fan motors Regulations on wire diameters differ according to national and local requirements For field wiring regulat...

Page 21: ...ck that voltage is in specified range 10 of the rating Check that power is being supplied 7 1 4 Check lead wires and connectors Check that coating of lead wires is not damaged Check that lead wires an...

Page 22: ...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 outdoor unit Measure insulatio...

Page 23: ...n outdoor unit Measure coil resistance of power relay RA RB NO Check power supply Power is being supplied to the outdoor unit Power failure Reset breaker Wait for recovery or contact power company Cir...

Page 24: ...motor capacitor YES YES YES Overload relay is working Refrigerant gas shortage Charge refrigerant gas R22 Temperature of compressor is abnormally high Rotor may be locked up OLR 1 to 4 C2 C3 Fan canno...

Page 25: ...l Insulate both wide and narrow tubes separately and then tape together Reduce cooling load or replace the air conditioner with larger capacity Temperature difference is small YES Charge refrigerant g...

Page 26: ...To indoor unit B Relay RB Relay RA Compressor moter capacitor C3 Compressor moter capacitor C2 Overload relay 1 Overload relay 3 Fan moter capacitor C1 Terminal plate 3P From power supply Outdoor Unit...

Page 27: ...crew where power supply lines are connected on the terminal plate Fig 2 9 1 3 Measurement of Insulation Resistance for Electrical Parts Disconnect the lead wires of the desired electric part from term...

Page 28: ...of the pointer setting the resistance measuring range of 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...

Page 29: ...mpletely 10 DISASSEMBLY PROCEDURE FOR INDOOR UNIT IMPORTANT Please Read Before Starting Safety precautions for servicing the CEILING MOUNTED indoor unit Center latch Air intake grille Metal clip Air i...

Page 30: ...al of Electrical Component Box 1 Remove the front screw with a screwdriver Fig 4 2 Slide the lid out and up Fig 4 3 Disconnect the wiring as necessary 4 Remove the 4 screws then pull out the electrica...

Page 31: ...e direction of the arrow Fig 6 3 Remove the 2 screws to pull off the flap motor The arm and cam come off together with the motor Fig 7 10 5 Removing Evaporator Indoor Heat Exchange Coil 1 Remove the 7...

Page 32: ...is built into the drain pan Pull out the drain pan together with the evaporator in the direction of the arrow Fig 10 The foamed polystyrene drain pan is fragile DO NOT apply excessive force when remov...

Page 33: ...the fan casing out 3 Insert a hex wrench in the fan boss and turn it counterclockwise to loosen the centrifugal fan The fan can be removed by sliding it to the left Fig 14 4 Remove the 4 bolts to rem...

Page 34: ...Printed in italy Via Varese 90 21013 Gallarate Va Italy Tel 39 0331 755111 Fax 39 0331 776240 www argoclima it...

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