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9-6. Cold draft Prevention (Heating)

●

This function controls indoor fan speed so a strong draft of cold air will not blow out before the indoor heat

exchange coil have sufficiently warmed up.

●

STANDBY lamp on front of the indoor unit lights up when this function is working.

●

when 10 minutes has elapsed,the fan speed is automatically switched to set speed regardless of indoor heat

exchange coil temperature.

OFF

ON

OFF or LL

Set speed

Indoor fan

Standby lamp

Indoor heat exch.
coil temp. (

°

C)

35

Max. 10minutes

55

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Содержание GR180R5TAA

Страница 1: ...DATA SERVICE MANUAL Indoor Unit Outdoor Unit MCAV180 220R5VAA GR180R5TAA KPAV180 220R5VAA GR220R5TAA SPLIT SYSTEM AIR CONDITIONER GR180R5TAA GR220R5TAA KP KPAV180 220R5VAA MCAV180 220R5VAA 0 8180 165...

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: ...er 45 8 DISASSEMBLY PROCEDURE FOR INDOOR UNIT 8 1 Removing air intake grille 46 8 2 Removing side panels 47 8 3 Access and removal of electrical components box 47 8 4 Removing flap motor 48 8 5 Removi...

Страница 4: ...11 CHECKING ELECTRICAL COMPONENTS 11 1 Measurements of insulation resistance 69 11 2 Checking continuity of fuse on PCB ass y 70 11 3 Checking motor capacitor 70 ii...

Страница 5: ...NGE 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 Heating Maximum 27 C D B 24 C D B 18 C W B Minimum 16 C D B...

Страница 6: ...OFF 24 hours Daily program 1 hour OFF Fan speeds Indoor Outdoor 3 and Auto Auto Hi Lo Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Compressor Rotary Hermetic Refrigeran...

Страница 7: ...ntrol unit Timer ON OFF 24 hours Daily program 1 hour OFF Fan speeds Indoor Outdoor 3 and Auto Auto Hi Lo Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Compressor Rotary...

Страница 8: ...24 hours Daily Program Fan speeds Indoor Outdoor 3 and Auto Auto Hi Lo Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Anti Mold Compressor Rotary Hermetic Refrigerant Amo...

Страница 9: ...24 hours Daily Program Fan speeds Indoor Outdoor 3 and Auto Auto Hi Lo Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Anti Mold Compressor Rotary Hermetic Refrigerant Amo...

Страница 10: ...at rpm High 2 1 305 1 335 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...

Страница 11: ...inal 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 capacitor F 2 0 VAC 440 T...

Страница 12: ...nt temp 20 C GRY WHT 194 223 WHT VLT 80 1 92 2 VLT ORG 80 1 92 2 ORG YEL 200 230 WHT PNK 238 274 Safety Type Internal protector devices Operating temp Open C 145 5 Close Automatic reclosing Run capaci...

Страница 13: ...nt temp 20 C GRY WHT 124 144 WHT VLT 69 3 79 8 VLT ORG 69 3 79 8 ORG YEL 200 233 WHT PNK 255 294 Safety Type Internal protector devices Operating temp Open C 145 5 Close Automatic reclosing Run capaci...

Страница 14: ...Ambient temp 25 C Trip in 3 to 10 sec at 54 A Run capacitor F 55 0 VAC 450 Crank case heater 240V 30W Type Propeller Number Dia mm 1 400 Fan motor model Number Smen 19FTB6055 1 No of poles rpm 230 V H...

Страница 15: ...amp Ambient temp 25 C Trip in 6 to 16 sec at 59 A Run capacitor F 40 0 VAC 450 Crank case heater 240V 30W Type Propeller Number Dia mm 1 460 Fan motor model Number Smen 19TFB6064 1 No of poles rpm 230...

Страница 16: ...ndoor Unit MCAV180R5VAA MCAV220R5VAA Indoor Unit KPAV180R5VAA KPAV220R5VAA Thermistor Room sensor TH2 KTEC 35 S6 Resistance k 10 C 10 0 4 30 C 4 0 4 15 C 7 9 4 35 C 3 3 4 20 C 6 3 4 40 C 2 7 4 25 C 5...

Страница 17: ...w Starting Relay SR AMVL300A Coil rating AC 300V 50Hz Coil resistance k at 23 C 13 3 2 Contact rating 20A AC Operating voltage AC 185 217V 50Hz Return voltage AC 60 120V 50Hz Power Relay PR DFU24D1 F...

Страница 18: ...Fan Speed Control 23S YTB S383 Switching temp C high LOW 28 5 C 1 low HIGH 31 C 1 Thermostat Defrost thermo 23D TRS02 12MSR316 Operating temp C ON 12 2 Diff 8 deg below Magnetic Contactor MG HE 20FT3...

Страница 19: ...r Unit MCAV180R5VAA 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 MCAV180 Wide tube 15 88 5 8 MCAV220 61 18 5...

Страница 20: ...KPAV220R5VAA 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 61 18 5 900 86 41 41 190 680 Wide tube 15 88 5 8 KPAV180 KPAV22...

Страница 21: ...17 Outdoor Unit GR180R5TAA 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 22: ...tdoor Unit GR220R5TAA Wide tube service valve 15 88 5 8 Narrow tube service valve 6 35 1 4 86 88 155 57 73 86 229 285 835 620 130 100 20 20 325 850 250 250 560 6 3 1 holes Air intake Air discharge Uni...

Страница 23: ...4 REFRIGERANT FLOW DIAGRAM Indoor Unit MCAV180R5VAA KPAV180R5VAA Outdoor Unit GR180R5TAA 19...

Страница 24: ...lated never try to bend it into a narrow curve because it can cause the tube to break or crack IMPORTANT CAUTION Wide tube Thickness Min 8 mm Insulation Narrow tube Thickness Min 8 mm Indoor Unit MCAV...

Страница 25: ...cm 2 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...

Страница 26: ...18 1 67 16 1 47 14 25 Indoor inlet air D B temp C 16 15 14 13 12 11 10 9 8 25 30 35 40 45 50 Outdoor inlet air D B temp C Operating current A 17 Indoor inlet air D B temp C Outdoor fan speed High Low...

Страница 27: ...g 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 veloci...

Страница 28: ...stance 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 30 0 1 2 3 4...

Страница 29: ...rocity m s Vertical distance m Room air temp 27 C Fan speed High Axis air verocity Flap angle 60 45 Floor mounted Cooling 0 1 2 3 4 5 6 7 3 2 1 0 Horizontal distance m Axis air verocity m s Vertical d...

Страница 30: ...0 1 2 3 4 5 6 7 1 0 2 3 Horizontal distance m Axis air verocity m s Vertical distance m Axis air verocity Flap angle 45 30 Ceiling mounted 0 1 2 3 4 5 6 7 1 0 2 3 Horizontal distance m Axis air veroci...

Страница 31: ...rocity m s Vertical distance m Room air temp 27 C Fan speed High Axis air verocity Flap angle 60 45 Floor mounted Cooling 0 1 2 3 4 5 6 7 3 2 1 0 Horizontal distance m Axis air verocity m s Vertical d...

Страница 32: ...0 1 2 3 4 5 6 7 1 0 2 3 Horizontal distance m Axis air verocity m s Vertical distance m Axis air verocity Flap angle 45 30 Ceiling mounted 0 1 2 3 4 5 6 7 1 0 2 3 Horizontal distance m Axis air veroci...

Страница 33: ...2 30 2 50 21 SHC 2 38 2 30 2 20 2 07 1 91 23 SHC 2 80 2 73 2 62 2 49 2 34 19 25 SHC 3 21 3 14 3 03 2 91 2 75 27 SHC 3 62 3 57 3 46 3 33 3 17 29 SHC 4 02 3 98 3 87 3 75 3 59 31 SHC 4 45 4 40 4 29 4 16...

Страница 34: ...4 2 47 2 65 2 91 3 15 21 SHC 2 90 2 81 2 68 2 52 2 33 23 SHC 3 41 3 33 3 20 3 04 2 85 19 25 SHC 3 91 3 83 3 70 3 55 3 36 27 SHC 4 42 4 35 4 22 4 06 3 87 29 SHC 4 91 4 85 4 72 4 58 4 38 31 SHC 5 42 5 3...

Страница 35: ...1 96 2 10 2 30 2 50 21 SHC 2 38 2 30 2 20 2 07 1 91 23 SHC 2 80 2 73 2 62 2 49 2 34 19 25 SHC 3 21 3 14 3 03 2 91 2 75 27 SHC 3 62 3 57 3 46 3 33 3 17 29 SHC 4 02 3 98 3 87 3 75 3 59 31 SHC 4 45 4 40...

Страница 36: ...4 2 47 2 65 2 91 3 15 21 SHC 2 90 2 81 2 68 2 52 2 33 23 SHC 3 41 3 33 3 20 3 04 2 85 19 25 SHC 3 91 3 83 3 70 3 55 3 36 27 SHC 4 42 4 35 4 22 4 06 3 87 29 SHC 4 91 4 85 4 72 4 58 4 38 31 SHC 5 42 5 3...

Страница 37: ...ollowing rating condition 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...

Страница 38: ...ature 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 F...

Страница 39: ...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 Motor Fan Motor Compr...

Страница 40: ...Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 V 50Hz Rating Conditions Running Amps A 0 33 0 40 9 57 10 30 Power Input kW 0 071 0 082 1 997 2 150 Full Load...

Страница 41: ...ature 35 C DB Full Load Conditions Indoor Air Temperature 32 C DB 23 C WB Outdoor Air Temperature 43 C DB Rating Conditions Indoor Air Temperature 20 C DB Outdoor Air Temperature 7 C DB 6 C WB Full Lo...

Страница 42: ...ndoor Unit MCAV180R5VAA 6 2 Electric Wiring Diagrams MCAV220R5VAA WARNING To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts 38...

Страница 43: ...Indoor unit KPAV180R5VAA To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts WARNING 39 FCRG KPAV220R5VAA...

Страница 44: ...Outdoor Unit GR220R5TAA 40...

Страница 45: ...Outdoor unit GR180R5TAA 41...

Страница 46: ...well as unrestricted air flow around the unit Fig 1 install the unit within the maximum elevation difference H above or below the outdoor unit and within a total tubing length L from the outdoor unit...

Страница 47: ...use lug bolts or equal to bolt down unit reducing vibration and noise Outdoor Unit Outdoor unit Hot air Heat source Exhaust fan Fig 3 Fig 3 Air intake Min 10 cm Air discharge Min 5 cm Min 40 cm Valve...

Страница 48: ...that position 3 After confirming correct operation use a screwdriver to screw the supplied special mounting screw into the wall Fig 6a 4 Hang the remote control unit from the mounting screw b Non remo...

Страница 49: ...refrigerant tubing the compressor or any moving part To avoid the risk of electric shock each air conditioner unit must be grounded Be sure to connect the power supply line to the outdoor unit as show...

Страница 50: ...mpletely 8 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 in...

Страница 51: ...l 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 electrical...

Страница 52: ...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 8 5 Removing Evaporator Indoor Heat Exchange Coil 1 Remove the 7...

Страница 53: ...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...

Страница 54: ...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...

Страница 55: ...rant pressure the control circuit has a built in automatic time delay to allow the internal pressure to equalize As a protective measure the control circuit switches the compressor OFF after 5 minutes...

Страница 56: ...As a protective measure the control circuit switches the compressor OFF after 5 minutes or more of compressor operation Thermo ON When the room temperature is below T 1 C T C is set temperature Compre...

Страница 57: ...calculates the difference between the set temperature and the room temperature and automatically switches to COOLING or HEATING mode to maintain the desired temperature Room temp Set temp COOL Room te...

Страница 58: ...s overheating of the indoor heat exchange coil When the temperature of the indoor heat exchange coil rises above 59 C and if the indoor fan is L low speed then the fan speed changes from L low speed t...

Страница 59: ...nge coil have sufficiently warmed up STANDBY lamp on front of the indoor unit lights up when this function is working when 10 minutes has elapsed the fan speed is automatically switched to set speed r...

Страница 60: ...tegrated operating time of compressor is more than 1 5 hours Thermo OFF Compressor OFF C D Temperature of indoor heat exchanger coil is below 45 C Continuous operating time of compressor is more than...

Страница 61: ...N Set speed OFF OFF OFF OFF 32 seconds Max 11 minutes 32 seconds Start of defrosting Release of defrosting OFF OFF Release of cold draft prevention Compressor Outdoor fan Solenoid coil 4 way valve Ind...

Страница 62: ...utdoor air temperature falls below A C the fan speed switches to LOW If the outdoor air temperature rises above B C the fan speed switches to HIGH This function does not become active in heating opera...

Страница 63: ...k lead wires and connectors in indoor and outdoor units Check that coating of lead wires is not damaged Check that lead wires and connectors are firmly connected Check that wiring is correct 1 2 4 5 6...

Страница 64: ...uit 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 insulation resista...

Страница 65: ...r 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 or contact power company Repl...

Страница 66: ...g 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 resis...

Страница 67: ...ltage 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 u...

Страница 68: ...tat in outdoor unit 23S Refer to 8 8 Outdoor Fan Speed Control Measure resistance of flap motor winding Fan cannot be turned OK Check fan rotation Turn fan gently once or twice by hand Check fan casin...

Страница 69: ...essor is abnormally high Refrigerant gas shortage Charge refrigerant gas R22 Rotor may be locked up Measure coil resistance of power relay PR Measure coil resistance of the magnetic contactor MG GR220...

Страница 70: ...defective Check voltage between terminals No 4 and No 6 at terminal plate DC 24V No voltage appears Outdoor PCB Ass y is defective OK Remote control unit may be defective Measure resistance of 4 way v...

Страница 71: ...Possibility 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 betwe...

Страница 72: ...stor is 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 Therm...

Страница 73: ...etallic 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 termi...

Страница 74: ...and 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 i...

Страница 75: ...S A C olgiate olona printed in italy R D 28 Reyrieux BP 131 01601 Tr voux CEDEX France T l 04 74 00 92 92 Fax 04 74 00 42 00 R C S Bourg en Bresse B 759 200 728...

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