Technibel GR451R Technical Data & Service Manual Download Page 1

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TECHNICAL DATA & SERVICE MANUAL

Indoor Unit

Outdoor Unit

MCA451R GR451R
MCA601R GR601R

SPLIT SYSTEM AIR CONDITIONER

INDOOR UNIT

OUTDOOR UNIT

0.8180.247.1 06/2002

Summary of Contents for GR451R

Page 1: ...TECHNICAL DATA SERVICE MANUAL Indoor Unit Outdoor Unit MCA451R GR451R MCA601R GR601R SPLIT SYSTEM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT 0 8180 247 1 06 2002...

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: ...ion 23 7 6 Protection Operations in Cool and Dry Modes 24 7 7 Protection Operations in Heat Mode 26 7 8 Cold Draft Prevention Heating 29 7 9 Sleep Function 30 7 10 Daily Timer Function 30 7 11 IFEEL F...

Page 4: ...G RANGE Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Cooling Maximum 32 C D B 23 C W B 46 C D B Minimum 19 C D B 14 C W B 19 C D B Heating Maximum 27 C D B 24 C D B 18 C W B Minimum 8 C...

Page 5: ...mostat Control unit Wireless remote control unit Timer ON OFF 24 hours and program Fan speeds Indoor Outdoor 3 and Auto 1 Hi Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washabl...

Page 6: ...Wireless remote control unit Timer ON OFF 24 hours and program Fan speeds Indoor Outdoor 3 and Auto 1 Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Compressor Rotary Her...

Page 7: ...High 2 1305 1335 Nominal output W 30 Coil resistance Ambient temp 20 C WHT BRN 130 4 WHT PNK 169 8 Safety Type Thermal protector devices Operating temp Open C 130 8 Close Automatic reclosing Run capac...

Page 8: ...mbient temp 25 C Automatic Run capacitor F 40 VAC 450 Type Propeller Number Dia mm 1 400 Fan motor model Number KFG6 51SB5P 1 No of poles rpm 230 V High 6 910 Nominal output W 40 Coil resistance Ambie...

Page 9: ...bient temp 25 C Automatic Run capacitor F 55 VAC 450 Type Propeller Number Dia mm 1 400 Fan motor model Number KFG6 51SB5P 1 No of poles rpm 230 V High 6 910 Nominal output W 40 Coil resistance Ambien...

Page 10: ...or Unit GR451R GR601R Thermistor Coil sensor NTC SENSOR Resistance at 25 C k 10 5 Indoor Unit MCA451R MCA601R Thermistor Room sensor NTC SENSOR Resistance at 25 C k 10 5 Power Relay PR G7L 2A TUB Coil...

Page 11: ...IONAL DATA Indoor Unit MCA451R MCA601R 285 45 995 45 147 5 147 5 206 3 Remote control unit Center of tubing hole 2 places Narrow tube 6 35 1 4 Drain hose 18 Wide tube 12 7 1 2 MCA451 601R 61 18 5 172...

Page 12: ...9 Outdoor Unit GR451R GR601R Air discharge Air intake 538 146 307 337 4 12 holes 830 19 630 305 61 95 Wide tube service valve 12 7 1 2 Narrow tube service valve 6 35 1 4 Unit mm...

Page 13: ...4 REFRIGERANT FLOW DIAGRAM 10...

Page 14: ...wet floors due to dripping of condensation both tubes must be well insulated with a proper insulation material The thickness of the insulation should be a min 8 mm After a tube has been insulated nev...

Page 15: ...G 1 87 18 1 67 16 1 47 14 25 Indoor inlet air D B temp C 14 13 12 11 10 9 8 7 6 25 30 35 40 45 50 Outdoor inlet air D B temp C Operating current A 15 Indoor inlet air D B temp C Outdoor fan speed Hig...

Page 16: ...Horizontal distance m Axis air velocity m s Vertical distance m Room air temp 27 C Fan speed High Cooling 0 1 2 3 4 0 1 2 3 4 5 6 7 8 9 Flap angle 0 Axis air velocity 0 Flap angle 30 Axis air velocity...

Page 17: ...4 27 4 13 3 88 3 58 TC 4 78 4 62 4 40 4 13 3 81 CM 1 39 1 46 1 57 1 72 1 87 21 SHC 2 09 2 03 1 93 1 82 1 68 23 SHC 2 46 2 40 2 31 2 19 2 06 19 25 SHC 2 82 2 76 2 67 2 56 2 42 27 SHC 3 19 3 14 3 04 2 9...

Page 18: ...85 4 47 TC 5 98 5 78 5 50 5 17 4 76 CM 1 95 2 05 2 20 2 41 2 62 21 SHC 2 62 2 53 2 42 2 27 2 10 23 SHC 3 08 3 00 2 88 2 74 2 57 19 25 SHC 3 53 3 46 3 34 3 20 3 03 27 SHC 3 98 3 92 3 80 3 66 3 49 29 S...

Page 19: ...ion Indoor 20 C D B Outdoor 7 C D B 6 C W B 2 Above characteristics indicate instantaneous operation which does not take into account defrost operation 3 Fan speed High 4 Because this air conditioner...

Page 20: ...e 27 C D B 19 C W B Outdoor Air Temperature 35 C D B Full Load Conditions Indoor Air Temperature 32 C D B 23 C W B Outdoor Air Temperature 46 C D B HEATING Indoor Unit Outdoor Unit Complete Unit Fan M...

Page 21: ...Air Temperature 35 C D B Full Load Conditions Indoor Air Temperature 32 C D B 23 C W B Outdoor Air Temperature 46 C D B HEATING Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Pe...

Page 22: ...ric Wiring Diagrams Indoor Unit MCA451R MCA601R Outdoot Unit GR451R GR601R 19 To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical part...

Page 23: ...mperature SPT as in the graph above Notes 1 In this graph the IFAN is operating in the Auto Fan Speed setting If the user has selected the low medium or high fan speed the IFAN will run constantly at...

Page 24: ...ally according to the RT SPT Note 1 The 30s IFAN operation is for purging the heat from the in coil after COMP has stopped Note 2 The IFAN will not be turned on until the in coil temperature is high e...

Page 25: ...0 1 2 ON OFF ON OFF COMP OFAN RV Auto Heat Mode Auto Cool Mode Auto Heat Mode In Auto Mode the unit switches between the Auto Cooling Mode and Auto Heating Mode automatically to maintain the room tem...

Page 26: ...e COMP 2 The unit operates in either the Dry on state or the Dry off state If RT SPT the unit will operate in Dry off state The COMP is forced to operate for 6 min after it has stopped working for 15...

Page 27: ...ion can prevent the ice formation at the in coil when the ambient temperature is low ICT o c 2 ON OFF ON OFF t1 t2 t3 COMP OFAN 1 5 0 1 ON OFF IFAN t1 5 min minimum for each COMP starting t2 OFAN cycl...

Page 28: ...FAN follow operation of COMP COMP is forced OFF OFAN is forced ON Note 1 IFAN is forced LOW Note 1 In some applications the outdoor fan and the compressor are controlled together by the COMP relay out...

Page 29: ...temperature detection as normally done but also while ice forming is detected on the out coil COMP to ON DI 40 or 10 DT 5 Activate DDt setting Routine Start counting TLD DTF 0 OCT DOC DTF 1 OCT DDT d...

Page 30: ...etection will be done by comparing the OCT with a Deicing Static Temperature Threshold The Deicing Data Record is used to determine the time delay between two deicing cycles In general the time delay...

Page 31: ...e protection prevent the build up of high pressure at the in coil during heating operation Note The operation temperatures shown as A and B in the chart differ by models MODEL 1 MODEL 2 MODEL 3 A 50 5...

Page 32: ...air will not blow out before the indoor heat exchange coil have sufficiently warmed up When 10 minutes has elapsed the fan speed is automatically switched to set speed regardless of indoor heat excha...

Page 33: ...is provided if the unit is used together with a remote controller with the I FEEL function When this function is selected the remote controller sends the room temperature measured by its build in ther...

Page 34: ...ection Mode Deicing in Heating Mode TIMER INDICATOR 1 Lights up during Timer and Sleep operation 2 Active On Off timer setting will become invalid after a power failure When this happens the unit is f...

Page 35: ...indoor unit from the outdoor unit 8 1 3 Check power supply Check that voltage is in specified range 10 of the rating Check that power is being supplied 8 1 4 Check lead wires and connectors in indoor...

Page 36: ...efective NO Measure insulation resistance of electrical parts in outdoor unit NO NO Set circuit breaker to OFF Measure insulation resistance of electrical parts in indoor unit 1 Remove inter unit wire...

Page 37: ...or switch to ON Switch Ass y or indoor PCB Ass y is defective NO Check power supply Power is being supplied to the outdoor unit Circuit breaker is tripped Power failure Reset breaker Wait for recovery...

Page 38: ...of transformer TR Indoor PCB Ass y or switch Ass y is defective OK OK Measure resistance of indoor and outdoor fan motor winding FMI FMO Measure resistance of flap motor winding FLP OK Measure resista...

Page 39: ...tage appears Outdoor PCB Ass y is defective OK OK NO Is room temperature too low Try to lower setting temperature by temperature setting button button Outdoor unit still does not run Remote control un...

Page 40: ...esistance of flap motor winding Fan cannot be turned OK Check fan rotation Turn fan gently once or twice by hand Check fan casing foreign matter on inside Fan motor burnout or foreign matter in bearin...

Page 41: ...erature of compressor is abnormally high Refrigerant gas shortage Charge refrigerant gas R22 Rotor may be locked up Measure coil resistance of power relay PR Fan cannot be turned OK Check fan rotation...

Page 42: ...s defective Check voltage between terminals No 4 and No 6 at terminal plate No voltage appears Outdoor PCB Ass y is defective OK Remote control unit may be defective Measure resistance of 4 way valve...

Page 43: ...ossibility of gas shortage YES Check position of remote control unit Cool or warm air from air conditioner reaches position directly Change position of remote control unit Wide and narrow tubes betwee...

Page 44: ...s short the air conditioner will be in the following conditions as the controller tries to detect extremely high room temperature a In Cooling mode The air conditioner continues to operate Thermo ON B...

Page 45: ...lic part of the unit with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw where power supply lines are connected on the terminal...

Page 46: ...then place a probe on the capacitor terminals as shown in Fig 7 Observe the deflection of the pointer setting the resistance measuring range of the multimeter to the maximum value The capacitor is go...

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