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7.CONTROL MODE

19

1.  Energy-saving 

4.1 Press the SOFT button on the remote controller to activate the energy-saving function. Now the 

energy-saving symbol appears on the screen. Press the button again to cancel this function, the 
corresponding symbol will go off. 

4.2 During energy-saving mode, the electric current will be limited to 60% of the rating level through 

adjusting the compressor revolving frequency and limiting the maximum current.   

4.3  This mode cannot be cancelled by the switching-on and off operations. When the machine is 

turned off, the energy-saving symbol will remain on. 

 

2.  Sleeping 

5.1  During heating or cooling mode, press the SLEEP button on the remote controller, the sleeping 

mode can be set or cancelled and the sleeping symbol on the screen will light up or go off 
accordingly. 

5.2 Heating: After this function is enable d, the setting temperature will fall down 3 degrees within  an 

hour. Two hours later, the temperature will fall down another 4 degrees, and the machine will be 
turned off after running for another 5 hours. 

5.3  Cooling: After this function is started, the setting temperature will rise 1 degree within an hour, 

and the

 

machine will be turned off automatically after another 7 hours.   

5.4  The default mode is sleeping off. The sleeping function will be cancelled after the machine is 

switched off. 

 

3.  High-power 

In this mode, the indoor fan speed will go into high level. The compressor runs at the max permissible 
frequency, which will be displayed on the screen. The original running mode will be automatically 
resumed after running for 15 minutes. 

 
4.  Temporary switch   

7.1 If the remote controller is missing, press the temporary switch and the system starts in the 

automatic mode, press the switch again to stop the system. Automatic mode follows: 
A  indoor temperature  26    cooling mode   temperature setting 26   
B  indoor temperature  23    heating mode   temperature setting 26   
C  23    indoor temperature  26   fan mode   
Indoor fan speed is automatic in automatic mode. 

7.2 Hold down the temporary switch for 5 seconds or longer and the system is forced to run in the 

cooling mode regardless of indoor temperature. 

NOTE: 

Operating frequency and rated values of the compressor: 
 

Item 

KFR-3601GW/BPE 

KFR-4001GW/BPE 

KFR-3502GW/BPE 

     Hz 
Mode 

Frequency 

range 

Rated 

frequency 

Frequency 

range 

Rated 

frequency 

Frequency 

range 

Rated 

frequency 

Cooling 

30-110 

84 

30-110 

94 

15-110 

82 

Heating  

30-137 

96 

30-137 

112 

15-137 

92 

 

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Summary of Contents for KFR-3502BPE

Page 1: ...TER AIR CONDITIONER CONTENTS 1 PART NAMES AND FUNCTIONS 2 SPECIFICATION 3 OUTLINES AND DIMENSIONS 4 WIRING DIAGRAM 5 REFRIGERANT SYSTEM DIAGRAM 6 PERFORMANCE DATA 7 CONTROL MODE 8 TROUBLESHOOTING 9 SE...

Page 2: ...ble Drainage hose Drainage hole bottom Air outlet Air inlet rear and side 1 KFR 3601W BPE KFR 4001W BPE KFR 3601G BPE KFR 4001 BPE G Switch button VFD screen Power plug Air outlet Air inlet grille Fro...

Page 3: ...et rear and side Air outlet Drainage hole bottom Air inlet Air filter Front panel Horizontal Vane Power plug Air outlet Vertical vane Color display screen INDOOR UNIT KFR 3502G BPE KFR 3502G BPE OUTDO...

Page 4: ...d or the temperature Air exchange button When this function works the air can be keep fresh Mode selection button Auto heating dehumidification Fan cooling Fan speed selection button Temperature displ...

Page 5: ...se Temperature setting button Press the button marked or to increase or decrease the temperature Mode selection button Auto heating dehumidification Fan cooling Fan speed selection button Reset button...

Page 6: ...4 411 YYW16 4 411 340 main 340 main Indoor fan motor Winding resistance at20 395 assisitant 395 assisitant Model UE6T C41A4 UE6T C41A4 Outdoor fan motor Winding resistance at20 151 4 151 4 Width mm 8...

Page 7: ...or fan motor Winding resistance at20 KFR 3601GW BPE Model UE6T C41A4 Outdoor fan motor Winding resistance at20 151 4 Width mm 285 Height mm 220 Indoor unit Depth mm 805 Width mm 316 Height mm 555 Dime...

Page 8: ......

Page 9: ......

Page 10: ...5 REFRIGERANT SYSTEM DIAGRAM 3 OUTLINES AND DIMENSIONS KFR 3601W BPE KFR 4001W BPE KFR 3502W BPE 9...

Page 11: ...X FAN FAN MOTOR PHASE TEST POWER SWITCH BRN BLK WHT RED BLK BLK VUPC CN12 1 VUP1 CN12 2 VVPC CN12 4 VVP1 CN12 5 VWPC CN12 7 VWP1 CN12 8 VNC CN12 10 VN1 CN12 11 VUPC CN15 1 VUP1 CN15 2 VVPC CN15 4 VVP1...

Page 12: ...2 FLAP2 CN17 3 FLAP2 CN17 4 FLAP2 CN17 5 FAN CN07 1 FAN CN07 2 FAN CN07 3 5V CN11 1 PH CN11 2 GND CN11 3 SI CN03 1 TRANSE CN04 1 TRANSE CN04 2 4 6A CN01 1 MID CN01 2 4 6B CN01 3 9V CN01 4 9V CN01 5 AC...

Page 13: ...N1 CN02 SV CNI0 1 SV CNI0 2 FAN CAP CN06 1 DC IN2 CN07 PTC FAN CAP CN06 2 PTC GAIKI CN17 1 GAIKI CN17 2 COIL CN13 1 COIL CN13 2 COMP CN16 1 COMP CN16 2 C CN08 1 AC CN08 2 H CN08 3 M CN08 4 L CN08 5 R...

Page 14: ......

Page 15: ...GW BPE 15 12 7 6 35 KFR 3601GW BPE 15 12 7 6 35 KFR 4001GW BPE 15 12 7 6 35 MAX HEIGHT DIFFERENCE Indoor unit Refrigerant piping Max length Max Height A difference 5m Outdoor unit ADDITIONAL REFRIGERA...

Page 16: ......

Page 17: ...2 1606 KFR 3502GW BPE 220V 50Hz 22 3908 1293 3941 1420 3882 1518 3600 1530 3370 1623 2973 1617 HEATING CAPACITY Outdoor intake air WB 15 10 5 0 5 10 15 model Indoor Intake Air DB CA PC CA PC CA PC CA...

Page 18: ...art immediately when the machine is first powered on it will take at least 3min for the compressor to restart if the machine is restarted 2 3 The fan speed changes in auto mode Tsetting Tindoor Fan sp...

Page 19: ...It will not start until the indoor heat exchanger is warmed up 1 6 During operation when the preset temperature is met the indoor compressor will stop to cause the indoor fan to stop So when the comp...

Page 20: ...will rise 1 degree within an hour and the machine will be turned off automatically after another 7 hours 5 4 The default mode is sleeping off The sleeping function will be cancelled after the machine...

Page 21: ...signals for more than 10 minutes it will automatically start the temperature sensor at the air inlet of indoor unit Meanwhile the man machine communication symbol on the screen will go off 2 2 The ma...

Page 22: ...6 Air outlet sensor trouble 10 Lightness sensor trouble 11 Indoor unit E2 PROM trouble 13 Outdoor sensor trouble 21 Condenser sensor trouble 22 Over hot of compressor 23 Over current 26 Overload prot...

Page 23: ...cy When the temperature 117 the compressor stops 3 4 When the temperature protector at the top of the compressor functions the compressor stops and the trouble code is displayed 3 5 Total current over...

Page 24: ...arting the machine the start is delayed for 3 minutes for protection 3 11 Communication trouble when the outdoor unit is turned on the indoor unit will shut down the indoor unit 3 minutes later if the...

Page 25: ...t r oubl e Troubl e code 1 I ndoor t em per at ur e sensor t r oubl e R epl ace t he t em per at ur e sensor Yes R epl ace t he i ndoor cont r ol boar d Troubl e code 2 I ndoor coi l sensor t r oubl e...

Page 26: ...t he pow er r epl ace t he out door cont r ol boar d and t hen st ar t up t he ai r condi t oner I s i ndoor heat exchanger f r eezed I s com pressor st i l l r unni ng I s i ndoor heat exchanger st i...

Page 27: ...d t r oubl e and r epl ace i t Yes N or m al pr ot ect i on and r epl ace f use N o I s t he vol t age i nput of st ar t up r esi s t or cor r ect I s t her e t he pow er out put of i ndoor uni t m ai...

Page 28: ...suppl y f ai l m om ent ar y N o Sw i t ch of f t he pow er suppl y and st ar t up i n 3 m i nut es Yes The vol t age of pow er suppl y I s out of N or m al r ange O ut door cont r ol boar d t r oubl...

Page 29: ...i t w or k Norm al l y I PMt r oubl e appear f r equent l y I s t he r esi st ance of out door coi l sensor cor r ect D oes t he t r oubl e di appear i n 3 m i nut es I s t he out door heat exchanger...

Page 30: ...5 REFRIGERANT SYSTEM DIAGRAM 6 PERFORMANCE CURVES 5 REFRIGERANT SYSTEM DIAGRAM 9 SERVICE FLOW CHART 29 Indoor electric control P C Board KFR 3502G BPE...

Page 31: ...5 REFRIGERANT SYSTEM DIAGRAM 6 PERFORMANCE CURVES 5 REFRIGERANT SYSTEM DIAGRAM 9 SERVICE FLOW CHART 30 Indoor electric control P C Board KFR 3601G BPE...

Page 32: ...5 REFRIGERANT SYSTEM DIAGRAM 6 PERFORMANCE CURVES 5 REFRIGERANT SYSTEM DIAGRAM 9 SERVICE FLOW CHART 31 Outdoor electric control P C Board KFR 3502W BPE KFR 3601W BPE KFR 4001W BPE...

Page 33: ...805 40 3 041 3 0358 17 33 91 0 6087 12 8 903 1 7276 41 2 936 3 0775 16 32 23 0 6363 13 8 54 1 7749 42 2 835 3 1188 15 30 65 0 6648 14 8 194 1 8226 43 2 739 3 159 14 29 15 0 6942 15 7 864 1 8704 44 2 6...

Page 34: ...126 3 0 684 49 21 6 2 404 89 5 309 3 951 9 120 4 0 712 50 20 79 2 452 90 5 143 3 977 10 114 8 0 742 51 20 01 2 499 91 4 982 4 003 11 109 5 0 772 52 19 26 2 547 92 4 827 4 028 12 104 4 0 804 53 18 54...

Page 35: ...check up it 6 Disconnect the circuitry in the electrical control box 7 Remove the printed circuit board 8 Take out the screws of the electrical control box and remove the electrical control box 3 Remo...

Page 36: ...move the evaporator 4 Remove the evaporator Screws 5 Remove the cross flow fan and the fan motor 1 Take out the screws of the motor cover and remove the cover 2 Remove the cross flow fan and the fan m...

Page 37: ...l connectors on the printed circuit board 5 Remove the printed circuit board and check up it 6 Disconnect the circuitry in the electrical control box 7 Take out the screws of the electrical control bo...

Page 38: ...rator 1 Take out the screw of the rubber cover and remove the rubber cover 2 Remove the screw connecting the fan motor and the cross flow fan 3 Remove the fan motor and the bearing ass y 4 Remove the...

Page 39: ...move the front panel 3 Remove the electrical control box 1 Take out the screws of the valve cover and remove the valve cover 2 Take out the screws of the handle and remove the handle 3 Disconnect the...

Page 40: ...screws of the partition plate and remove the partition plate 1 Check up the condenser ass y 2 Check up the compreesor ass y 3 Check up the barrier ass y 4 Check up the base ass y 6 Check up the other...

Page 41: ...25 24 29 28 4 27 3 22 26 2 1 8 5 6 7 19 31 18 17 37 34 23 35 36 21 32 33 20 40 38 39 13 12 10 9 30 11 14 16 15 12 PARTS LIST KFR 3601G BPE KFR 4001G BPE 40...

Page 42: ...2 2362 018 XX 0 18 Down Right Cover 1 RZA 2 2369 008 XX 0 19 Fan Motor 1 RZA 0 0000 046 XX 0 20 Motor Guard 1 RZA 0 2514 102 XX 0 21 Air Outlet Frame 1 RZA 0 1504 016 XX 0 22 Stepper Motor 2 RZA 0 00...

Page 43: ...12 PARTS LIST KFR 3601W BPE KFR 4001W BPE 3 4 5 6 7 8 12 2 1 9 22 21 17 16 15 14 13 20 19 18 24 11 10 23 KFR 3502W BPE 42...

Page 44: ...m Plate Ass y RZA 0 2202 019 XX 0 1 1 1 11 Partition Plate Ass y 852 0 2209 234 00 1 1 1 1 12 Strengthen Plate 852 2 2208 201 01 0 1 1 1 13 Inductance R ZA 0 2649 022 XX 0 1 1 1 14 IPM Board RZA 0 517...

Page 45: ...12 PARTS LIST 1 3 13 35 5 36 6 2 4 8 33 34 14 15 16 17 18 20 19 22 23 24 25 7 32 31 12 29 10 9 11 30 27 21 28 26 38 37 44...

Page 46: ...y RZA 0 2510 128 00 1 1 18 Cross Flow Fan Ass y RZA 0 2509 104 XX 0 1 19 Fan Motor RZA 0 0000 055 XX 0 1 20 Motor Supporter RZA 2 1514 020 XX 0 1 21 Motor Cover RZA 2 2514 104 XX 0 1 22 Base Ass y RZ...

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