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Technibel GR250X5TAA, Technical & Service Manual, Page: 52 / 57

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Technibel GR250X5TAA Technical & Service Manual Download Page 52

– 

52

 –

4

(10)

Excessive cooling.

• The set temperature is too low.

• Is the remote control unit installed 
  at a place where it can 
  detect the room temperature 
  properly ?

0637_X_S

Set the temperature to 
higher value using 
temperature setting 
button of the remote 
control unit.

Change installation
position of the remote
control unit.

YES

NO

4. SERVICE PROCEDURES

Summary of Contents for GR250X5TAA

Page 1: ...TECHNICAL SERVICE MANUAL SPLIT SYSTEM AIR CONDITIONER SPA250X5TAA GR250X5TAA SPA250X5TAA GR250X7TAA SPA360X5TAA GR360X7TAA SPA480X5TAA GR480X7TAA 0 8180 110 1 05 01...

Page 2: ...ange 20 1 7 Cooling Capacity 21 1 8 Noise Criterion Curves 25 1 9 Air Throw Distance Chart 27 2 PROCESSES AND FUNCTIONS 28 2 1 Room Temperature Control 28 2 2 Freeze Prevention Cooling 29 2 3 Outdoor...

Page 3: ...n connection No 20A OD26mm Compressor Rotary Operation sound Indoor Hi Me Lo dB A 45 41 37 Outdoor Hi dB A 53 REFRIGERANT TUBING Limit of tubing length m ft 40 131 Limit of tubing length at shipment m...

Page 4: ...nnection No 20A OD26mm Compressor Rotary Operation sound Indoor Hi Me Lo dB A 45 41 37 Outdoor Hi dB A 53 REFRIGERANT TUBING Limit of tubing length m ft 40 131 Limit of tubing length at shipment m ft...

Page 5: ...tion No 20A OD26mm Compressor Rotary Operation sound Indoor Hi Me Lo dB A 47 43 39 Outdoor Hi dB A 54 REFRIGERANT TUBING Limit of tubing length m ft 50 164 Limit of tubing length at shipment m ft 15 4...

Page 6: ...No 20A OD26mm Compressor Scroll Operation sound Indoor Hi Me Lo dB A 48 44 40 Outdoor Hi dB A 56 REFRIGERANT TUBING Limit of tubing length m ft 50 164 Limit of tubing length at shipment m ft 15 49 Li...

Page 7: ...V 1 phase 50 Hz No of pole r p m 230 V High rpm 4 1 198 Coil resistance BRN WHT 175 1 ORG YEL 70 9 Ambient temperature 20 C WHT VLT 43 6 YEL PNK 15 6 VLT ORG 27 0 Safety device Operating temperature O...

Page 8: ...No of pole r p m 230 V High rpm 4 1 194 Coil resistance BRN WHT 43 3 ORG YEL 349 3 Ambient temperature 20 C WHT VLT 16 6 VLT PNK 40 8 VLT ORG 24 5 Safety device Operating temperature Open C 130 5 C Cl...

Page 9: ...No of pole r p m 230 V High rpm 4 1 212 Coil resistance BRN WHT 43 3 ORG YEL 349 3 Ambient temperature 20 C WHT VLT 16 6 VLT PNK 40 8 VLT ORG 24 5 Safety device Operating temperature Open C 130 5 C Cl...

Page 10: ...h pressure switch ACB 1TB07 Set pressure OFF kg cm2 30 ON kg cm2 24 2 0 Fan Number diameter mm Propeller 1 460 Fan motor Model Nominal output W KFC6S 91C5P 100 W No of pole rpm 230V High rpm 6 868 Coi...

Page 11: ...temperature Open C 120 5 Close C 98 11 Operating ampere at 25 C A 6 A 110 Run capacitor V F High pressure switch ACB 1TB07 Set pressure OFF kg cm2 30 ON kg cm2 24 2 0 Fan Number diameter mm Propeller...

Page 12: ...ad relay models FMSA 1SZ607A FMSA 1SZ607A Operating temperature Open C 120 5 130 Close C 98 11 61 Operating ampere at 25 C A 6 A 110 10 A 110 Run capacitor V F High pressure switch ACB 1TB07 Set press...

Page 13: ...rature C 150 Thermistor Coil sensor PBC 41E S36 PBC 41E S35 Coil resistance k 10 C 23 7 5 C 12 1 5 C 18 8 10 C 9 7 0 C 15 0 15 C 8 0 Thermistor Room or coil sensor KTEC 35 S6 Coil resistance k 0 C 16...

Page 14: ...lay RDR S400 Rated voltage V AC 380 415 V 3 phase 50Hz Resistance at 20 C k R T 76 3 Thermostat Coil sensor YTB S377 Operating Temperature C 27 5 1 5 OFF High 25 5 ON Low Contact rated AC 250 V 1 A 1...

Page 15: ...40 65 90 221 35 40 138 330 256 626 670 1190 4 28 HOLES FOR ANCHOR BOLT TUBING FOR TOP SLIT HOLE TUBING FOR BACK SLIT HOLE 1190 1190 40 221 40 40 35 35 36 125 C B 330 60 8 9 110 TUBING FOR SIDE 181 58...

Page 16: ...mm Hole for anchor bolt 4 13 Refrigerant tube joint narrow tube Flare connection 1 4 in 6 35 mm Refrigerant tube joint wide tube Flare connection 5 8 in 15 88 mm Refrigerant tubing inlet Power supply...

Page 17: ...mm Hole for anchor bolt 4 13 Refrigerant tube joint narrow tube Flare connection 3 8 in 9 52 mm Refrigerant tube joint wide tube Flare connection 3 4 in 19 05 mm Refrigerant tubing inlet Power supply...

Page 18: ...r HP High pressure switch O D 19 05 mm 3 4 Evaporator Capillary O D 9 52 mm 3 8 Condenser HP High pressure switch Compressor Accumulator Capillary Sub condenser Wide tube service valve Narrow tube ser...

Page 19: ...min 8 mm After a tube has been insulated never try to bend it into a narrow curve because it can casue the tube to break or crack Insulator Thickness Min 8mm Narrow tube Wide tube 0133_C_I O D 19 05 m...

Page 20: ...20 Temperature Indoor air intake temp Outdoor air intake temp Maximum 35 C DB 22 5 C WB 52 C DB Minimum 18 C DB 14 C WB 19 C DB 1 SPECIFICATIONS 1 6 Operating Range...

Page 21: ...2 5 1 4 9 4 7 4 5 27 SHC 6 5 8 5 7 5 5 5 3 5 1 29 SHC 6 6 6 4 6 3 6 1 5 9 5 7 31 SHC 7 2 7 6 9 6 59 6 18 5 75 TC 7 88 7 6 7 3 6 94 6 54 6 1 CI 2 45 2 63 2 82 3 09 3 36 3 63 21 SHC 3 5 3 3 3 2 3 1 2 9...

Page 22: ...SHC 5 4 5 2 5 1 4 9 4 7 4 5 27 SHC 6 5 8 5 7 5 5 5 3 5 1 29 SHC 6 6 6 4 6 3 6 1 5 9 5 7 31 SHC 7 2 7 6 9 6 59 6 18 5 75 TC 7 88 7 6 7 3 6 94 6 54 6 1 CI 2 15 2 3 2 47 2 64 2 82 2 99 21 SHC 3 5 3 3 3...

Page 23: ...7 7 5 7 3 7 6 7 27 SHC 8 9 8 7 8 4 8 2 7 9 7 6 29 SHC 9 8 9 6 9 3 9 1 8 8 8 34 31 SHC 10 7 10 5 10 11 9 57 8 98 8 34 TC 11 45 11 03 10 6 10 07 9 5 8 85 CI 2 23 2 39 2 56 2 79 3 01 3 24 21 SHC 5 4 8 4...

Page 24: ...8 7 8 3 27 SHC 11 10 7 10 4 10 1 9 7 9 3 29 SHC 12 11 7 11 4 11 1 10 7 10 3 31 SHC 13 1 12 8 12 4 12 1 11 7 11 02 TC 15 12 14 57 14 13 3 12 54 11 69 CI 3 63 3 89 4 17 4 59 5 02 5 44 21 SHC 6 6 6 4 6 1...

Page 25: ...Phase 50 Hz 90 80 70 60 50 40 30 20 10 60 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF CONTINUOUS NOISE NC 70 NC 50 NC 60 NC 40 NC 30 NC 20 OCTAVE BAND SOUND PRESSURE LEVEL dB 0dB 0 0002 b...

Page 26: ...mong them 90 80 70 60 50 40 30 20 10 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz NC 70 NC 60 NC 50 NC 40 NC 30 NC 20 OCTAVE BAND...

Page 27: ...1 2 3 4 HORIZONTAL DISTANCE m ROOM AIR TEMP LOUVER ANGLE 27 C 0 C 15 C 30 C AXIS AIR VELOCITY m s VERTICAL DISTANCE m 7 8 9 10 30 15 0 AXIS AIR VELOCITY MODEL SPA360X5TAA MODEL SPA480X5TAA 1 2 3 4 5 6...

Page 28: ...it stops the compressor for 3 minutes For 5 minutes after the compressor is first turned on and for 3 minutes after it is turned off the compressor is not controlled by the room sensor Thermo ON When...

Page 29: ...TES FREEZE PREVENTION 6 MINUTES 10 MINUTES FREEZE PREVENTION 6 MINUTES THERMO OFF THERMO ON 1 C ON ON ON ON ON ON 0608_X_S SET SPEED Fig 8 2 3 Outdoor Fan Control In low outdoor temperature the outdoo...

Page 30: ...Outdoor model GR250X7TAA Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 220 240 V 1 phase 50 Hz 380 415 V 3 phase 50 Hz Rating conditions A 0 43 0 43 0 75 0 78 4...

Page 31: ...ns A 0 95 0 98 1 51 1 56 7 66 8 19 8 39 8 90 kW 0 20 0 22 0 33 0 37 4 17 4 27 4 70 4 86 Full load conditions A 0 95 0 98 1 51 1 56 10 18 10 07 10 95 10 84 kW 0 20 0 22 0 33 0 37 5 87 5 88 6 40 6 48 St...

Page 32: ...1 9 1 2 1 TR P S 2 1 PRY 2P WHT SEC 2P WHT TH1 Coil 2 1 TH1 2P RED 3 1 LM BLK WHT 3 1 3 1 2 1 Connector 2P WHT P Connector 2P BLK Connector 2P BLU Connector 2P RED Connector 9P WHT BLK BLK BLK 2 1 2...

Page 33: ...tion FMI 49FMI C F DPH LM TR RY1 RY5 TH1 TH2 Indoor Fan Motor Indoor Motor Thermal Protector Capacitor Fuse Dew Proof Heater Auto Louver Motor Power Transformer Auxiliary Relay Thermistor Indoor Coil...

Page 34: ...S GRN YEL GRN YEL GRN YEL 52C 5 7 8 1 3 Relay 1 2 1 2 6 2 4 1Y Power Supply 50Hz 1 220 V To Indoor Unit Terminal Plate 1 2 4 L N WHT PNK WHT PNK WHT WHT RED BRN RED WHT BLK WHT BLU RED RED WHT Electri...

Page 35: ...T 52C Schematic Diagram Symbols Description CM FM 52C 63PH 23S C1 2 OLR 1Y Compressor motor Fan Motor Compressor Motor Magnetic Contactor High Pressure Switch Fan Speedcontrol Thermostat Capacitor Ov...

Page 36: ...6 51C C P S H L 23S 49C Earth Terminal R S T GRN YEL GRN YEL GRN YEL 52C 4 6 3 5 8 Relay S B A T R C 7 1 2 1 2 1Y 47C Power Supply 50Hz 3 380 V 415 V To Indoor Unit Terminal Plate 1 2 4 5 6 7 8 L1 L2...

Page 37: ...M 52C 51C 49C 47C 63PH 23S C 1Y Compressor motor Fan Motor Compressor Motor Magnetic Contactor Compressor Motor Overcurrent Relay Compressor Motor Thermal Protector Negative Phase Relay High Pressure...

Page 38: ...8 Relay Relay S B A T R C 7 1 2 1 2 2Y 47C Power Supply 50Hz 3 380 V 415 V To Indoor Unit Terminal Plate 1 2 4 5 6 7 8 L1 L2 L3 N PNK BRN ORG WHT WHT PNK PNK BLU RED PNK YEL RED WHT BLU ORG GRY RED W...

Page 39: ...ription CM FM1 2 52C 51C 49C 47C 63PH 23S C1 2 1Y 2Y Compressor motor Fan Motor Compressor Motor Magnetic Contactor Compressor Motor Overcurrent Relay Compressor Motor Thermal Protector Negative Phase...

Page 40: ...8 Relay Relay S B A T R C 7 1 2 1 2 2Y 47C Power Supply 50Hz 3 380 V 415 V To Indoor Unit Terminal Plate 1 2 4 5 6 7 8 L1 L2 L3 N PNK PNK BRN ORG WHT WHT PNK PNK BLU RED PNK RED WHT BLU GRY RED WHT B...

Page 41: ...agram Symbols Description CM FM1 2 52C 51C 47C 63PH 23S C1 2 1Y 2Y Compressor motor Fan Motor Compressor Motor Magnetic Contactor Compressor Motor Overcurrent Relay Negative Phase Relay High Pressure...

Page 42: ...e is correctly connected between the indoor unit and outdoor unit 3 3 3 3 3 Check power supply Check that voltage is within the specified range 10 of the rating Check that power is being supplied If t...

Page 43: ...er line from the terminal plate in the outdoor unit Check insulation resistance of outdoor unit OK Remove interunit power line from the terminal plate in the indoor unit Check insulation resistance of...

Page 44: ...failure Reset the breaker Wait for recovery or consult power supply company NO B Check remote control unit 0616_X_S Try to run both indoor and outdoor units with another remote control unit Refer to...

Page 45: ...No 1 and No 2 poles of the socket 0617_X_S Has Operation selector switch been set to ON position YES Set Operation selector switch to ON NO But neither unit runs Switch Ass y or P C B Ass y in the ind...

Page 46: ...ng for foreign matter on the inside Remove foreign matter or repair Repair or replace Fan cannot be rotated OK Check fan motor capacitor Fan motor burnout or foreign matter in bearing G Check fuse on...

Page 47: ...COOLER Set Operation selector switch to TEST in the indoor unit YES Outdoor unit runs Is room temperature too low NO Try to run both indoor and outdoor units with another remote control unit OK The ot...

Page 48: ...ltage appears P C B Ass y is defective D Check indoor unit P C B 0626_X_S Is temperature of compressor abnormally high Refrigerant gas shortage YES NO Compressor is defective Charge refrigerant gas Ch...

Page 49: ...Y1 or RY2 on the P C B Ass y is defective Check fan rotation Rotate the fan gently once or twice by hand 0631_X_S Check fan casing for foreign matter on the inside Remove foreign matter or repair Repa...

Page 50: ...ter in bearing GR360X7 and GR480X7 8 Compressor does not run Check compressor motor capacitor Refer to 4 4 0635_X_S Check resistance of compressor motor winding Check compressor motor overload relay O...

Page 51: ...de tube and then execute taping with narrow tube YES NO Possibility of refrigerant shortage Charge refrigerant R22 Temperature difference is small YES Check clogging of air filter Temperature differen...

Page 52: ...control unit installed at a place where it can detect the room temperature properly 0637_X_S Set the temperature to higher value using temperature setting button of the remote control unit Change inst...

Page 53: ...pressor runs b Short Outdoor fan and compressor do not stop Excessive cooling 4 3 Operation of Major Electrical Parts Function Operation Indoor unit and Remote Control unit Oudoor unit Freeze preventi...

Page 54: ...by placing a probe on the terminal plate in the same manner as explained above 2 Fig 43 4 Measurement of Insulation Resistance for Electrical parts Disconnect the connector of the desired electric pa...

Page 55: ...re is a continuity between terminals 1 Indoor fan motor thermal protector 49FI Indoor unit Disconnect the connector which leads to the indoor fan motor FMI Check the socket s terminals 2 Compressor mo...

Page 56: ...2 A Major component specifications 3 Outdoor fan motor FMO Outdoor unit Measure the coil resistance Measure the resistance in the same manner as explained above 2 Refer to 1 2 B Major component speci...

Page 57: ...g the multimeter Fig 49 Having continuity is acceptable 4 Thermistor Characteristic Curve 1 Room temp sensor 1 Coil sensor Fuses Indoor P C B Ass y 0644_X_S Fuse 0645_X_S PBC 41E KTEC 35 Resistance kn...

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