Sirge KFR-25GW/BPWa User manual

Split Wall-Mounted Type
Inverter Air-Conditioners
Service Manual
KFR-25GW/BPWa
KFR-32GW/BPWa

1
CONTENTS
I. Photo of the Production ················································································ 2
II. Operating Principle ······················································································· 4
III. Exploded Views of the Production ······························································· 5
IV. List of common wearable parts······································································ 11
V. Main Technical Data and Characteristic Curves of the Production ·············· 12
VI. Dismantling Procedure ·················································································· 16
VII. Analysis of Faults of the Productions ··························································· 19

2
I Photo of the production
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?
3
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Feature:
1. Stylish and deluxe design
2. Compact size, easy to install and operate
3. Sends out air in gentle stream for physical comfort
4. Use multi-fold evaporator to create the area of heat exchange
5. Intelligent blur defrost
6. Remote control

4
II Operating Principle
A. Cooling
After the power supply is switched on, the machine is set to COOL mode. With the
compressor being operated, the low-temperature and low-pressure refrigerant vapor is
sucked into the compressor where it is turned into high-temperature and high-pressure
gas. Then it is cooled down in the outdoor heat exchanger by the air and becomes
liquid. After being throttled by the capillary, the refrigerant liquid comes into the
indoor unit and then it evaporates in the indoor heat, exchanger, absorbing heat and
reducing the room temperature. The evaporated refrigerant vapor returns to the
outdoor unit and is again sucked into the compressor, completing the cycle. With the
refrigerant cycling being kept on, the objective of lowering the room temperature is
fulfilled.
B. Heating
After the power supply is switched on, the machine is set to HEAT mode and the coil
of the electromagnetic four-way valve is energized. After the compressor starts to
operate, the high-temperature and high-pressure refrigerant gas first comes into the
heat exchanger of the indoor unit, where it is cooled, releases heat and increases the
room temperature. The cooled high-pressure refrigerant is then throttle1d in the
outdoor unit and returns to the compressor after evaporation. With such cycles being
maintained, the objective of increasing the room temperature is fulfilled.
C. System Schematic Diagram
Please see the following Diagram

5
III Exploded Views of the Production
1???KFR-25GW/BPWa ???
Detailed part list of KFR-32GW/VJWa indoor unit
S/N Part Name Drawing No. Part No.
1 Front panel assy KFR-25G/VJ.010.00 KFR-25G/BPWa 01
2 Air strainer KFR-25G/V.050.00WX KFR-25G/BPWa 02
3 Upper frame assy KFR-35G/VJ.020.00 KFR-25G/BPWa 03
4 Right locating cover KFR-23G/T.000.06 KFR-25G/BPWa 04
5 Electric box cover KFR-23G/T.000.09 KFR-25G/BPWa 05
6 Indoor main control board KFR-32G/BPWa.021.00 KFR-25G/BPWa 06
7 Electric box KFR-23G/T.100.01 KFR-25G/BPWa 07
8 Step motor KFR-23G/T.061.00WX KFR-25G/BPWa 08
9 Transformer KFR-35G/VJ.031.04WX KFR-25G/BPWa 09
10 Indoor motor KFR-25G/V.070.00WX KFR-25G/BPWa 10
11 Lower frame assy KFR-25G/V.040.00 KFR-25G/BPWa 11
12 Impeller fan KFR-25G/V.080.00WX KFR-25G/BPWa 12
13 Water-collecting plate assy KFR-25G/V.030.00 KFR-25G/BPWa 13
14 Left locating cover KFR-23G/T.041.04 KFR-25G/BPWa 14
15 Fixing clip KFR-23G/T.000.05 KFR-25G/BPWa 15
16 Screw ST4*12FT SJ 2823-87 KFR-25G/BPWa 16
17 Evaporator assy KFR-25G/V.060.00 KFR-25G/BPWa 17
18 Air filter KFR-35G/VJ.040.00 KFR-25G/BPWa 18
19 Air cleaner KFR-35G/VJ.050.00 KFR-25G/BPWa 19
Detailed part list of KFR-25GW/BPWa outdoor unit
S/N Part Name Drawing No. Part No.
1 Front plate assy KFR-32W/BPWa.120.00 KFR-25W/BPWa 01
2 Cover of valve KFR-25W/VFd.000.02 KFR-25W/BPWa 02
3 Left rear plate KFR-32W/BPWa.000.03 KFR-25W/BPWa 03
4 Handle assy KFR-32W/BPWa.110.00 KFR-25W/BPWa 04
5 Screw ST4*10C SJ 2823-87 KFR-25W/BPWa 05
6 underprop 014 model KFR-25W/BPWa 06
7
outdoor main control
board KFR-25W/BPWa.051.00 KFR-25W/BPWa 07
8 Top plate assy KFR-32W/BPWa.040.00 KFR-25W/BPWa 08
9 Nut M4?16 GB/T818-2000 KFR-25W/BPWa 09
10 Rectifier GBPC3508A KFR-25W/BPWa 10
11 IPM KFR-32W/BPWa.064.00 KFR-25W/BPWa 11
12 Insulated cushion KFR-32W/BPWa.063.02 KFR-25W/BPWa 12
13 Radiator KFR-32W/BPWa.063.01 KFR-25W/BPWa 13
14 Bracket of sensor KF10.000.19 KFR-25W/BPWa 14

6
15 Net of entering air KFR-32W/W.000.04 KFR-25W/BPWa 15
16 Condenser assy KFR-25W/BPWa.030.00 KFR-25W/BPWa 16
17 Right rear plate assy KFR-32W/T1.050.00 KFR-25W/BPWa 17
18 Capillary pipe assy KFR-25W/BPWa.020.00 KFR-25W/BPWa 18
19
Middle partition welding
assy KFR-25W/BPWa.011.00 KFR-25W/BPWa 19
20 LC capacitor KFR-32W/BPWa.020.03 (CBB65-1K 40µF 450VAC) KFR-25W/BPWa 20
21 Capacitor clamp KFR-32W/BPWa.020.04 KFR-25W/BPWa 21
22 Base plate assy KFR-32W/BPWa.010.00 KFR-25W/BPWa 22
23 Screw ST6*18C KFR-35W/H1.000.03WX KFR-25W/BPWa 23
24 Gas valve KFR-25W/BPWa.060.00WX KFR-25W/BPWa 24
25 Rubber grommet KFR-32W/BPWa.100.01WX KFR-25W/BPWa 25
26 Nut Compressor accessory KFR-25W/BPWa 26
27 Compressor KFR-25W/BPWa.070.00WX KFR-25W/BPWa 27
28 Overload protector KFR-32W/BPWa.100.02WX KFR-25W/BPWa 28
29 Gasket Compressor accessory KFR-25W/BPWa 29
30 Terminal cover Compressor accessory KFR-25W/BPWa 30
31 Washer 6 GB/T 93-1987 KFR-25W/BPWa 31
32 Nut M6 GB/T 6170-2000 KFR-25W/BPWa 32
33 Outdoor motor KFR-32W/BPWa.080.00WX KFR-25W/BPWa 33
34 Motor bracket assy KFR-32W/T1.150.00 KFR-25W/BPWa 34
35 Nut Four-way valve accessory KFR-25W/BPWa 35
36 Coil of four-way valve KFR-35W/BP.000.00JL-19WX KFR-25W/BPWa 36
37 Four-way valve assy KFR-25W/BPWa.040.00 KFR-25W/BPWa 37
38 Filter KFR-35W/BP.084.01WX KFR-25W/BPWa 38
39 Reactor KFR-32W/BPWa.070.02 KFR-25W/BPWa 39
40 Propeller fan KFR-32W/T1.120.00WX KFR-25W/BPWa 40
41 Rubber ringer KFR-60W.000.06 KFR-25W/BPWa 41
42 Electric plate welding assy KFR-32W/BPWa.071.00 KFR-25W/BPWa 42
43 Fuse 20A 250VAC KFR-25W/BPWa 43
44 Wire plywood KFR-22WA.050.04 KFR-25W/BPWa 44
45 Terminal board KF-25W/V.040.01WX KFR-25W/BPWa 45
46 Screw ST4*20C SJ2821-87 KFR-25W/BPWa 46
47 Electric box welding as sy KFR-32W/BPWa.061.00 KFR-25W/BPWa 47

7
KFR-25GW/BPWa INDOOR EXPLODE VIEW
KFR-25GW/BPWa OUTDOOR EXPLODE VIEW

2
8
???KFR-32GW/BPWa ???
Detailed part list of KFR-32GW/BPWa indoor unit
S/N Part Name Drawing No. Part No.
1 Front panel assy KFR-35G/VJ.010.00 KFR-32G/BPWa 01
2 Air strainer KFR-23G/T.090.00WX KFR-32G/BPWa 02
3 Upper frame assy KFR-32G/BPWa.010.00 KFR-32G/BPWa 03
4 Right locating cover KFR-23G/T.000.06 KFR-32G/BPWa 04
5 Electric box cover KFR-23G/T.000.09 KFR-32G/BPWa 05
6 Indoor main control board KFR-32G/BPWa.021.00 KFR-32G/BPWa 06
7 Electric box KFR-23G/T.100.01 KFR-32G/BPWa 07
8 Step motor KFR-23G/T.061.00WX KFR-32G/BPWa 08
9 Transformer KFR-35G/VJ.031.04WX KFR-32G/BPWa 09
10 Indoor motor KFR-35G/V.030.00WX KFR-32G/BPWa 10
11 Lower frame assy KFR-23G/T.030.00 KFR-32G/BPWa 11
12 Impeller fan KFR-23G/T.080.00WX KFR-32G/BPWa 12
13 Water-collecting plate assy KFR-23G/T.060.00 KFR-32G/BPWa 13
14 Left locating cover KFR-23G/T.041.04 KFR-32G/BPWa 14
15 Fixing clip KFR-23G/T.000.05 KFR-32G/BPWa 15
16 Screw ST4*12FT SJ 2823-87 KFR-32G/BPWa 16
17 Evaporator assy KFR-35G/V.020.00 KFR-32G/BPWa 17
18 Air filter KFR-35G/VJ.040.00 KFR-32G/BPWa 18
19 Air cleaner KFR-35G/VJ.050.00 KFR-32G/BPWa 19
Detailed part list of KFR-32GW/BPWa outdoor unit
S/N Part Name Drawing No. Part No.
1 Front plate assy KFR-32W/BPWa.120.00 KFR-32W/BPWa 01
2 Cover of valve KFR-25W/VFd.000.02 KFR-32W/BPWa 02
3 Left rear plate KFR-32W/BPWa.000.03 KFR-32W/BPWa 03
4 Handle assy KFR-32W/BPWa.110.00 KFR-32W/BPWa 04
5 Screw ST4*10C SJ 2823-87 KFR-32W/BPWa 05
6 underprop 014 model KFR-32W/BPWa 06
7
outdoor main control
board KFR-32W/BPWa.062.00 KFR-32W/BPWa 07
8 Top plate assy KFR-32W/BPWa.040.00 KFR-32W/BPWa 08
9 Nut M4?16 GB/T818-2000 KFR-32W/BPWa 09
10 Rectifier GBPC3508A KFR-32W/BPWa 10
11 IPM KFR-32W/BPWa.064.00 KFR-32W/BPWa 11
12 Insulated cushion KFR-32W/BPWa.063.02 KFR-32W/BPWa 12
13 Radiator KFR-32W/BPWa.063.01 KFR-32W/BPWa 13
14 Bracket of sensor KF10.000.19 KFR-32W/BPWa 14
15 Net of entering air KFR-32W/W.000.04 KFR-32W/BPWa 15

9
16 Condenser assy KFR-35W/V.020.00? KFR-32W/BPWa 16
17 Right rear plate assy KFR-32W/T1.050.00 KFR-32W/BPWa 17
18 Capillary pipe assy KFR-32W/BPWa.030.00 KFR-32W/BPWa 18
19
Middle partition welding
assy KFR-32W/BPWa.021.00 KFR-32W/BPWa 19
20 LC capacitor KFR-32W/BPWa.020.03 (CBB65-1K 40µF 450VAC) KFR-32W/BPWa 20
21 Capacitor clamp KFR-32W/BPWa.020.04 KFR-32W/BPWa 21
22 Base plate assy KFR-32W/BPWa.010.00 KFR-32W/BPWa 22
23 Screw ST6*18C KFR-35W/H1.000.03WX KFR-32W/BPWa 23
24 Gas valve KFR-32W/BPWa.090.00WX KFR-32W/BPWa 24
25 Rubber grommet KFR-32W/BPWa.100.01WX KFR-32W/BPWa 25
26 Nut Compressor accessory KFR-32W/BPWa 26
27 Compressor KFR-32W/BPWa.100.00WX KFR-32W/BPWa 27
28 Overload protector KFR-32W/BPWa.100.02WX KFR-32W/BPWa 28
29 Gasket Compressor accessory KFR-32W/BPWa 29
30 Terminal cover Compressor accessory KFR-32W/BPWa 30
31 Washer 6 GB/T 93-1987 KFR-32W/BPWa 31
32 Nut M6 GB/T 6170-2000 KFR-32W/BPWa 32
33 Outdoor motor KFR-32W/BPWa.080.00WX KFR-32W/BPWa 33
34 Motor bracket assy KFR-32W/T1.150.00 KFR-32W/BPWa 34
35 Nut Four-way valve accessory KFR-32W/BPWa 35
36 Coil of four-way valve KFR-35W/BP.000.00JL-19WX KFR-32W/BPWa 36
37 Four-way valve assy KFR-32W/BPWa.050.00 KFR-32W/BPWa 37
38 Filter KFR-35W/BP.084.01WX KFR-32W/BPWa 38
39 Reactor KFR-32W/BPWa.070.02 KFR-32W/BPWa 39
40 Propeller fan KFR-32W/T1.120.00WX KFR-32W/BPWa 40
41 Electric plate welding assy KFR-32W/BPWa.071.00 KFR-32W/BPWa 41
42 Fuse 20A 250VAC KFR-32W/BPWa 42
43 Wire plywood KFR-22WA.050.04 KFR-32W/BPWa 43
44 Terminal board KF-25W/V.040.01WX KFR-32W/BPWa 44
45 Screw ST4*20C SJ2821-87 KFR-32W/BPWa 45
46 Electric box welding as sy KFR-32W/BPWa.061.00 KFR-32W/BPWa 46

10
KFR-32GW/BPWa INDOOR EXPLODE VIEW
KFR-32GW/BPWa OUTDOOR EXPLODE VIEW

11
IV???Lists of Common Wearable Parts
List of Wearable Parts of KFR-25GW/BPWa
No. Description Model Specification
1 R emote controlle r KFR-35GW/VJ.010.00WX(A)
2 Indoor temp sensor KFR-22GA.000.00JL-04WX
3 Indoor pipe temp sensor KFR-22GA.000.00JL-05WX
5 Indoor main control board KFR-35G/VJ.031.00
6 Display & receive board KFR-35G/VJ.011.00
7 Transformer KFR-35G/VJ.031.04WX
8 Step moter KFR-23G/T.061.00WX
9 Impeller fan KFR-25G/V.080.00WX
10 Idoor motor KFR-25G/V.070.00WX
11 Propeller fan KFR-32W/T1.120.00WX
12 Outdoor motor KFR-32W/BPWa.080.00WX
13 LC capacitor KFR-32W/BPWa.020.03 40uF/450VAC
14 Outdoor main control board KFR-25W/BPWa.051.00
15 Fuse 20A 250VAC
16 Filter KFR-35W/BP.084.01WX
17 Reactor KFR-32W/BPWa.070.02
18 Rectifier GBPC3508A
19 IPM KFR-32W/BPWa.064.00
20 Outdoor temp sensor KFR-32W/BPWa.000.00JL-
20WX
21 Outdoor pipe temp sensor KFR-75W/Hd.000.00JL-01WX
22 Outdoor exhausting temp sensor KFR-120W/TdS.000.00JL-01WX

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List of Wearable Parts of KFR-32GW/BPWa
No. Description Model Specification
1 R emote controlle r KFR-35GW/VJ.010.00WX(A)
2 Indoor temp sensor KFR-22GA.000.00JL-04WX
3 Indoor pipe temp sensor KFR-22GA.000.00JL-05WX
5 Indoor main control board KFR-32G/BPWa.021.00
6 Display & receive board KFR-35G/VJ.011.00
7 Transformer KFR-35G/VJ.031.04WX
8 Step moter KFR-23G/T.061.00WX
9 Impeller fan KFR-23G/T.080.00WX
10 Idoor motor KFR-35G/V.030.00WX
11 Propeller fan KFR-32W/T1.120.00WX
12 Outdoor motor KFR-32W/BPWa.080.00WX
13 LC capacitor KFR-32W/BPWa.020.03 40uF/450VAC
14 Outdoor main control board KFR-32W/BPWa.062.00
15 Fuse 20A 250VAC
16 Filter KFR-35W/BP.084.01WX
17 Reactor KFR-32W/BPWa.070.02
18 Rectifier GBPC3508A
19 IPM KFR-32W/BPWa.064.00
20 Outdoor temp sensor KFR-32W/BPWa.000.00JL-20WX
21 Outdoor pipe temp sensor KFR-75W/Hd.000.00JL-01WX
22 Outdoor exhausting temp sensor KFR-120W/TdS.000.00JL-01WX

13
? Main Technical Data and Cooling and Heating Characteristic
Curves
1. Main technical data:
Model KFR-25GW/BPWa KFR-32GW/BPWa
Cooling capacity W 2500(1300-3200) 3200(1500-3900)
Heating capacity W 2900(1300-3200) 3800(1400-4300)
Air flow m3/h 435 520
Power supply V, Hz 1PH 220, 50
Rated input current for cooling A 4.4 5.5
Rated input current for heating A 5.6 7.0
Rated input power for cooling W 816(400-1450) 1050
Rated input power for heating W 1030(350-1300) 1280
Max. input power for cooling W 1350 1500
Max. input power for heating W 800 1000
Indoor unit ?37 ?38 Noise
dB(A) Outdoor unit ?50 ?52
Indoor unit 19.8?67.7?25.0 19.8?74.5?25.0 Net dimensions
(D?B?H) cm Outdoor unit 25.9?76.0?53.7
Indoor unit 29.0?79.0?35.5 29.0?86.0?35.5 Packing dimensions
(D?B?H) cm Outdoor unit 35.2?89.6?60.0
Indoor unit 7 7.5 Net weight
kg Outdoor unit 32 34
Indoor unit 9.5 10 Gross weight
kg Outdoor unit 37 39
Material R410A
Refrigerant Charge kg 0.71 0.75
Power plug cord diameter mm C8.4
Gas pipe 3/8íí 1/2íí Pipe size
inch Liquid pipe 1/4íí
Temperature control range ?15?30
Environmental temperature range ?-7?43
Compressor brand/model Meizhi/
DA89X1C-20FZ3
MeiZi/
DA108X1C-20FZ3

14
Notes: 1. Rated conditions:
(1) Cooling: Inside Dry-bulb temp. 27?Outside:Dry-bulb temp. 35?
Wet-bulb temp. 19 ?Wet-bulb temp. 24?
Heating: Inside Dry-bulb temp. 20?Out side:Dry-bulb temp. 7?
Wet-bulb temp. 15 ?max. Wet-bulb temp. 6?
(2) Standard length of pipe connection m: 3.6
(3) Horizontal grille is set in initial position, and the indoor fan speed is high.
2. Maximum conditions:
Cooling: Inside: Dry-bulb temp. 32? Outside: Dry-bulb temp. 43?
Wet-bulb temp. 23? Wet-bulb temp. 26 ?
Heating: Inside: Dry-bulb temp. 27? Outside: Dry-bulb temp. 24?
Wet -bulb t e mp . 18 ?
3. The data are only for reference, for details please see label of the unit.

2.
15
Data for cooling capacity curve:
Indoor conditions
Dry bulb21?
Wet bulb15?
Dry bulb27?
Wet bulb19?
Dry bulb32?
Wet bulb23?
Dry bulb32?
Wet bulb23?
Outdoor conditions
Operating
conditions
Index
Dry bulb15? Dry bulb35?
Wet bulb24?
Dry bulb43?
Wet bulb26?
Dry bulb52?
Wet bulb32?
???????????? ?A???????A????????A?????
????
????
????
????
1500
1900
2300
2700
15 35 43 52
Dry-bulb temp representing outdoor conditions
Cooling Capacity (W)
KFR-32GW/BPWa Cooling Capacity Curve
????
????
????
????
3000
3100
3200
3300
3400
10 20 30 40 50 60
Dry-bulb temp representing outdoor conditions
Cooling Capacity (W)

16
3. Data for heating capacity curve:
Indoor conditions
Dry bulb20?
Wet bulb15?
Dry bulb20?
Wet bulb15?
Dry bulb20?
Wet bulb15? Dry bulb27?
Outdoor conditions
Operating
conditions
Index
Dry bulb-7? Dry bulb2?
Wet bulb1?
Dry bulb7?
Wet bulb6?
Dry bulb24?
Wet bulb18?
KFR-25GW/BPWa Heating Capacity Curve
????
????
????
????
2300
2500
2700
2900
3100
-10 -5 0 5 10 15 20 25
Dry-bulb temp representing outdoor conditions
Heating Capacity (W)
KFR-32GW/BPWa Heating Capacity Curve
????
????
????
????
2400
2600
2800
3000
3200
3400
3600
3800
-10 -5 0 5 10 15 20 25
Dry-bulb temp representing outdoor conditions
Heating Capacity (W)

17
? Dismantling Procedure
Indoor Unit (example for KFR-32GW/BPWa)
Operating step Photo
1. Remove the panel.
2.Remove upper frame assy
??? Remove the air strainers.
??? Remove two screw covers and take off
three screws of upper frame.
??? Remove the upper frame.
3. Remove the electric box
(1) Remove one screw of electric cover,
remove the electric cover.
(2) Remove the screw of earthing wire,
and take off the sensors.
(3) Remove the wires and one screw,
remove board and electric box.
A
A
4. Take off one screws of water-collecting
plate and remove water-collecting plate.
A
5. Take off two screws of left locating
cover and two screws of motor fastener.
Remove evaporator.A
6.Remove impeller fan and indoor motor
a) Remove the four screws of motor
fastener
b) Remove the screw of impeller fan.
Remove the motor and impeller.A
A
A

18
OUTDOOR UNIT (example for KFR-32GW/BPWa)
Operating step Photo
1. Remove the top cover(six screws).
2. Remove the front plate
3. Remove the handle
4.Remove the left plate

19
5. Remove the electric box welding assy.
6. Remove the electric plate welding assy.
7.Remove compressorís cover
Fault Analysis of the Product Available and Typical Examples
1 Procedure of deciding the faults
Before maintaining the air conditioner, firstly you should know the phenomena
of the faults, decide the location of the faults, analyze the reason the faults occur, and
then search for ways to solve the faults. The detailed procedures are: Look, Listen,
Touch, Measure, Analyze?
?Look: Observe air conditionerís running. I.e., vibration; condensation on
evaporator; leakage; electrical and mechanical connection, etc.
?Listen: Listen to kinds of sounds of the running air conditioner. Identify the
abnormal noise from the sounds.
?Touch: Touch the key position and position faulty. Touch the temp of air flow
to decide the heating or cooling effect; as far to abnormal sound, besides adopt