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7-9 Sleep Function

Room temperature is automatically controlled to compensate for body temperature variations while
sleeping.  This mode of operation is designed for maximal comfort in both COOL and HEAT modes.

SPT

Time [Hr]

4

3

2

Start

Sleep

7 - 12

RT

SPT-1

SPT-2

SPT-3

SPT+2

SPT+1

SPT+3

1

7-12 Hours Sleep operation

Unit is turned to SB

after Sleep

Cool, Dry modes

Heat mode

7-10 Daily Timer Function

Unit can be programmed to be ON and OFF automatically at preset time everyday, by using a remote
controller.  The resolutions of the ON/OFF timers are 10 min.

7-11 IFEEL Function

This feature 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
thermistor to the air con for more accurate temperature control.

7-12 Louver Control

The airflow louver can be driven by either a 12V DC stepping motor or an AC motor.  The louver can be
set to operate at auto swing mode or fix position mode.
Three additional features are provided if the louver is controlled by a DC stepping motor.

?

 

Different swing positions (range) for Heat Mode and Cool Mode operation

?

 

Last louver position in fix position mode is stored in the EEPROM, and is restored when the unit is
turned on.

?

 

The louver is closed automatically when the unit is switched to standby mode.

30

Содержание GR451R

Страница 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...

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: ...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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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