Ballu KFR-3601GW, KFR-3502BPE, KFR-3601BPE, KFR-4001GW, KFR-4001BPE Service Manual

-

KFR 3601GW/BPE
KFR- 4001GW/BPE
KFR- 3502GW/BPE

SERVICE

MANUAL

SPLIT TYPE INVERTER 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.SERVICE FLOW CHART...............................

10.SENSOR PARAMETER................................

11.DISASSEMBLY INSTRUCTIONS...................

12.PARTS LIST.................................................

1. PART NAMES AND FUNCTIONS

Vertical Vane

INDOOR UNIT

OUTDOOR UNIT

Tubes and cable

Drainage hose

Drainage hole (bottom)

Air outlet

Air inlet (rear and side)

1

KFR-3601W/BPE
KFR-4001W/BPE

KFR-3601G/BPE
KFR-4001 /BPEG

Switch button

VFD screen

Power plug

Air outlet

Air inlet grille

Front cover

Air filter Air fresh filter

Indoor coil sensor(inside)

Horizontal Vane

Tubes and cable

Drainage hose

Air inlet (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

OUTDOOR UNIT

2

1. PART NAMES AND FUNCTIONS

REMOTE CONTROL UNIT

1Сʱ

AA

T.SETTIN GT.SETTIN G

C

A

A

A

HOUR

ON

OFF

H.P.

ON/OFF

TEMP.

SLEEP

FLAP

ON

OFF

SET

CLR

SENSOR

BATTERY

FAN/MUTE

SOFT

RESET

TEMP.DISP

ATR EX.

MODE

Sensor

Testing the ambient temperature
of the remote control unit

LCD

Displaying the running condition.

Hi-power running button

Sleep button

Press the button, the appliance enter
sleep mode.

Flap

Up-down adjustment

Timer on/off button

Setting the time of appliance on/off.

Set/cancel timer button
Set or cancel the time of appliance
on/off.

A/C sensor button

Press the button if the remote
control unit is liable to be affected by
the heat resource, such as electric
blanket, radiator or sunlight, this will
use the sensor of indoor unit, the
symbol will appear on the LCD.

Transmitter
Transmitting signals to the indoor unit,
the symbol will appear on the top of
LCD.

On/Off button
Press the button to run, press again
to cease.

Temperature setting button
Press the button marked " "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 displaying button
setting the temperature in the screen
of indoor unit

Reset button
Press the button after batteries are
loaded and indication appears on
LCD.

Duel energy-saving
This function can be used for
Restricting the max. electric current
by control software.

Sliding cover

Battery compartment

" " to increase or decrease

3

KFR-3601G/BPE
KFR-4001 /BPEG

1. PART NAMES AND FUNCTIONS

REMARK: The remote controller transmits signal to indoor unit at 3 minutes intervals. If the indoor unit

has not received the signal for more than 10 minutes due to remote controller missing or other reason,

the sensor on indoor unit will be used for detecting indoor temperature automatically. Here, ambient

temperature of remote controller is likely to slightly different from that detecting by the indoor unit,

temperature will be compensated automatically. When the remote controller is missing or the batteries

are exhausted, please use the temporary switch.

AA

T.SETTINGT.SETTING

C

A

A

A

HOUR

ON

OFF

H.P.

ON/OFF

TEMP.

SLEEP

FLAP

ON

OFF

SET

CLR

SENSOR

BATTERY

FAN/MUTE

SOFT

RESET

MODE

Sensor

Testing the ambient temperature
of the remote control unit

LCD

Displaying the running condition.

Hi-power running button

Sleep button

Press the button, the appliance enter
sleep mode.

Flap

Up-down adjustment

Timer on/off button

Setting the time of appliance on/off.

Set/cancel timer button
Set or cancel the time of appliance
on/off.

A/C sensor button

Press the button if the remote
control unit is liable to be affected by
the heat resource, such as electric
blanket, radiator or sunlight, this will
use the sensor of indoor unit, the
symbol will appear on the LCD.

Transmitter
Transmitting signals to the indoor unit,
the symbol will appear on the top of
LCD.

On/Off button
Press the button to run, press again
to cease.

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
Press the button after batteries are
loaded and indication appears on
LCD.

Duel energy-saving
This function can be used for
Restricting the max. electric current
by control software.

Sliding cover

Battery compartment

1 HOUR

REMOTE CONTROL UNIT

KFR-3502G/BPE

4

1. PART NAMES AND FUNCTIONS

REMARK: The remote controller transmits signal to indoor unit at 3 minutes intervals. If the indoor unit
has not received the signal for more than 10 minutes due to remote controller missing or other reason,
the sensor on indoor unit will be used for detecting indoor temperature automatically. Here, ambient
temperature of remote controller is likely to slightly different from that detecting by the indoor unit,
temperature will be compensated automatically. When the remote controller is missing or the batteries
are exhausted, please use the temporary switch.

2.SPECIFICATION

5

Model KFR-3601GW/BPE KFR-4001GW/BPE

Function Cooling Heating Cooling Heating

Power supply a.c 220V~ 50Hz a.c 220V~ 50Hz

Capacity KW

3.6 5.0 4.0 6.0

Dehumidification

l /h

1.5 1.8

Capacity

Air flow m3/h

540 650 630 680

Power outlet A

16 16 16 16

Running current A

6.35 7.8 8.0 11.5

Power input W

1.34 1.58 1.54 2.14

Auxiliary heater A(KW)

----- ----- ----- -----

Power factor %

90 90 90 90

Starting current A

17 17

Compressor motor current A

6.2 6.2

Electrical

data

Fan motor current A

0.2 0.2

Coefficient of performance(C.O.P)

2.68 3.16 2.6 2.8

Model

SGZ20EG2UY SGZ20EG2UY

Output W

1100 1100

Compressor

Winding resistance (at20 )

1.05 1.05

Model

YYW16-4-411 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

860 860

Height mm 285 285

Indoor unit

Depth mm 235 235

Width mm 800 800

Height mm 555 555

Dimensions

Outdoor unit

Depth mm 260 260

Indoor unit kg 11.5 11.5 Weigh t

Outdoor unit kg 39.0 39.0

Air direction 6 6

Indoor unit dB 39 40 42 43 Sound lever

(Hi)

Outdoor unit dB 48 49 48 49

Indoor unit rpm 1100 1200 1220 1250 Fan speed

(Hi)

Outdoor unit rpm 680 680

Indoor unit 4 4 Fan speed

regulator

Outdoor unit 3 3

Refrigerant filling capacity(R-22) kg 1.10 1.18

RT1(at25 ) k 58 58

RT2(at25 ) k 5.3 5.3

Special

remarks

Thermitstor

RT3(at25 ) k 5 5

NOTE :Test conditions

Cooling : Idoor DB27 / WB19 , Outdoor DB35 / WB24

Heating: Indoor DB20 / WB15 , Outdoor DB7 / WB 6

°Ñ

°Ñ

°Ñ

°Ñ °Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

2.SPECIFICATION

6

Model KFR-3502GW/BPE

Function Cooling Heating

Power supply a.c220 50Hz

Capacity KW 3.5 4.8

Dehumidification

l /h

1.8 ——

Capacity

Air flow m3/h 540 640

Power outlet A 16

Running current A 6.5 10.0

Power input W 7.8 12.0

Auxiliary heater A(KW) ——

Power factor % 90 90

Starting current A 20

Compressor motor current A 7.2

Electrical data

Fan motor current A 0.2

Coefficient of performance(C.O.P) 2.7 3.0

Model SHV130FGEC

Output W 650

Compressor

Winding resistance (at20 ) 0.87

Model YZW16W-4-411 Indoor

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

Dimensions

Outdoor unit

Depth mm 867

Indoor unit kg 9.5 Weigh t

Outdoor unit kg 39

Air direction 6 6

Indoor unit dB 39/30 39/33 Sound lever

(Hi)

Outdoor unit dB 48/41 48/41

Indoor unit rpm 1180 1230 Fan speed

(Hi)

Outdoor unit rpm 750 750

Indoor unit 4 4 Fan speed

regulator

Outdoor unit 3 3

Refrigerant filling capacity(R-22) kg 1.15

RT1(at25 ) k 58

RT2(at25 ) k 5.3

Special remarks

Thermitstor

RT3(at25 ) k 5

NOTE :Test conditions

Cooling : Idoor DB27 / WB19 Outdoor DB35 / WB24

Heating: Indoor DB20 / WB15 Outdoor DB7 / WB 6

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

5.REFRIGERANT SYSTEM DIAGRAM3.OUTLINES AND DIMENSIONS

KFR-3601W/BPE KFR-4001W/BPE KFR-3502W/BPE

9

4.WIRING DIAGRAM

ELECTRICAL WIRING DIAGRAM

0
1
2
3
4

(L)

AC IN1
AC OUT1
ACIN2(CN06.2)

+5V(CN01.1)
GND(CN01.2)
CS(CN01.3)
SO(CN01.4)
CLK(CN01.5)
REMOTE(CN01.6)

BRIGHT(CN02.1)

-27V(CN02.2)

4.6B(CN02.3)

4.6A(CN02.4)

+5V(CN08.1)
GND(CN08.2)
CS(CN08.3)

SO(CN08.4)

SCK(CN08.5)

REMOTE(CN08.6)

BRIGHT(CN02.1)

-27V(CN02.2)

4.6B(CN02.3)

4.6A(CN02.4)

FLAPI(CN16.1)
FLAPI(CN16.2)
FLAPI(CN16.3)
FLAPI(CN16.4)
FLAPI(CN16.5)

FLAP2(CN17.1)
FLAP2(CN17.2)
FLAP2(CN17.3)
FLAP2(CN17.4)
FLAP2(CN17.5)

VCC(CN09.1)

GND(CN09.2)

VEN(CN09.3)

FAN(CN07.1)
FAN(CN07.2)
FAN(CN07.3)

+5V(CN11.1)

PH(CN11.2)

GND(CN11.3)

SW(CN15.1)

GND(CN15.2)

SI(CN06.1)

TRANSE(CN04.1)
TRANSE(CN04.2)

TRANSE(CN05.1)
TRANSE(CN05.2)

TRANSE(CN10.1)
TRANSE(CN10.3)

CAP(CN06.1)

CAP(CN06.2)

4.6A(CN01.1)
MID(CN01.2)

4.6B(CN01.3)
9V(CN01.4)
9V(CN01.5)
AC22V(CN01.6)
AC22V(CN01.7)

(L)
(N)

LEN

(SI)

ROOM(CN20.1)
ROOM(CN20.2)

COIL(CN19.1)
COIL(CN19.2)

1
2
3
4
5

1
2
3
4
5

1
2
3

1
2
3

1
2
3

1
2

TERM.PANEL

CONTROL BOARD

EVAP.

POWER TRAN.

POWER TRAN.

POWER WIRE

INDOOR SENSOR

EVAP. SENSOR

FAN CAP.

ELECTRICAL WIRING DIAGRAM

INDICATOR BOARD

STEP. MOTOR 1

STEP. MOTOR 2

AIR EX. 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(CN15.5)

VWPC(CN15.7)

VWP1(CN15.8)

VNC(CN15.10)

VN1(CN15.11)

SI(CN09)

IN2

IN1

E
OUT1
OUT2

OUT3

AC

AC

++

PTC

AC IN1(CN04)
AC IN2(CN05)

DC OUT1(CN11)
DC OUT2(CN01)

P(CN07)
N(CN06)

W(CN03)

V(CN04)

U(CN05)

AC OUT1(CN03)

VFC(CN05.1)
GND(CN05.2)
+5V(CN05.3)
Z(CN05.4)
Y(CN05.5)
X(CN05.6)
W(CN05.7)
V(CN05.8)
U(CN05.9)

VFC(CN18.1)

GND(CN18.2)

+5V(CN18.3)

Z(CN18.4)
Y(CN18.5)
X(CN18.6)

W(CN18.7)

V(CN18.8)
U(CN18.9)

DC IN1(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)

THERMO(CN12.1)
THERMO(CN12.2)

RST

EARTH

C
AC
H
M
L

EARTH

1
2
3
4

+

_

OUTDOOR UNIT

FUSE

FIL. BOARD

TERM. PANEL

REC. BRIDGE

INDUCTOR

CAP.

ELEC. CAPACITOR

OUTDOOR SENSOR

CONDENSOR SENSOR

DISCHARGE SENSOR

OLP

ELECTRICAL WIRING DIAGRAM

CONTROL BOARD IPM BOARD

4-WAY VALVE

FAN CAP.

COMPRESSOR

FAN MOTOR

BLK BLK

BLK

WHT

WHT

WHT

RED

WHT

YEL/GRN

YEL/GRN

YEL/GRN

YEL/GRN

YEL

YEL

ORG

ORG

ORG

BLK

BLK

BRN

RED

WHT

BLU

BLK

BLU

YEL

YEL

RED
RED

BLU

10

KFR-3601GW/BPE
KFR-4001 /BPEGW

ELECTRICAL WIRING DIAGRAM

0
1
2
3
4

(L)

L IN
L OUT1
ACIN2(CN03.2)

+5V(CN01.1)
GND(CN01.2)
CS(CN01.3)
SO(CN01.4)
CLK(CN01.5)
REMOTE(CN01.6)
SW(CN01.7)

-27V(CN02.1)

4.6B(CN02.2)

4.6A(CN02.3)

+5V(CN08.1)
GND(CN08.2)
CS(CN08.3)

SO(CN08.4)

SCK(CN08.5)

REMOTE(CN08.6)

SW(CN08.7)

-27V(CN02.2)

4.6B(CN02.3)

4.6A(CN02.4)

FLAP2(CN17.1)
FLAP2(CN17.2)
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)
AC22V(CN01.6)
AC22V(CN01.7)

(L)
(N)

LEN

(SI)

ROOM(CN20.1)
ROOM(CN20.2)

COIL(CN19.1)
COIL(CN19.2)

1
2
3
4
5

1
2
3

1
2
3

ELECTRICAL WIRING DIAGRAM

TERM.PANEL

CONTROL BOARD

INDICATOR BOARD

EVAP.

POWER TRAN.

POWER WIRE

STEP MOTOR

FAN MOTOR

PHASE TEST

INDOOR SENSOR

EVAP. SENSOR

BRN
BLK
WHT

RED

KFR-3502G/BPE

11

4.WIRING DIAGRAM

VNC(CN12.10)
VN1(CN12.11)

VNC(CN15.10)

VN1(CN15.11)

SI(CN09)

IN2

IN1

E
OUT1
OUT2

OUT3

YEL/GRN

AC

AC

++

PTC

AC IN1(CN04)
AC IN2(CN05)

DC OUT1(CN11)
DC OUT2(CN01)

P(CN07)
N(CN06)

W(CN03)

V(CN04)

U(CN05)

AC OUT1(CN03)

VFC(CN05.1)
GND(CN05.2)
+5V(CN05.3)
Z(CN05.4)
Y(CN05.5)
X(CN05.6)
W(CN05.7)
V(CN05.8)
U(CN05.9)

VFC(CN18.1)

GND(CN18.2)

+5V(CN18.3)

Z(CN18.4)
Y(CN18.5)
X(CN18.6)

W(CN18.7)

V(CN18.8)
U(CN18.9)

DC IN1(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)

RST

EARTH

C
AC N
H
M
L

EARTH

1
2
3
4

+
_

FUSE

TERM. PANEL

REC. BRIDGE

CONTROL BOARD

IPM BOARD

INDUCTOR

CAP.

ELEC. CAPACITOR

OUTDOOR SENSOR

CONDENSOR SENSOR

DISCHARGE SENSOR

4-WAY VALVE

FAN CAP.

COMPRESSOR

FAN MOTOR

BLK

BLK

RED

FIL. BOARD

WHT

YEL/GRN

BLK

WHT

WHT

WHT

YEL

YEL

ORG

ORG

ORG

BLU

BLU

YEL

YEL

BRN
BLK

BLK

BLK

RED

WHT

BLU

YEL/GRN

YEL/GRN

KFR-3502W/BPE

12

4.WIRING DIAGRAM

5.REFRIGERANT SYSTEM DIAGRAM

MAX. REFRIGERANT PIPING LENGTH

Piping size O.D : mm Length of connecting pipe : m

Modles

Refrigerant Piping

Max. Length : m

A

Gas Liquid Indoor unit Outdoor unit

KFR-3502GW/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

unit

Refrigerant piping

difference 5m

Outdoor unit

ADDITIONAL; REFRIGERANT CHARGE(R-22 : g)

Refrigerant piping length (one way) Modles Outdoor unit precharged

(up to 7m)

7m 10m 15m

KFR-3502GW/BPE 1150 0 75 200

KFR-3601GW/BPE 1100 0 75 200

KFR-4001GW/BPE 1180 0 75 200

14

COOLING CAPACITY

Outdoor intake air DB

20 25 30 35 40 45

model

Indoor

Intake Air

(WB )

CA PC CA PC CA PC CA PC CA PC CA PC

16 3787 1425 3671 1439 3420 1498 3123 1501 2855 1564 2649 1637

18 4117 1459 3876 1445 3775 1525 3475 1527 3244 1637 2879 1643

20 4301 1436 4160 1434 3947 1499 3644 1501 3367 1583 2958 1599

KFR-3601GW/BPE

(220V/50Hz)

22 4492 1405 4326 1432 4223 1488 3930 1495 3632 1584 3235 1613

16 3622 1296 3425 1409 3308 1512 3000 1520 2775 1598 2473 1590

18 3665 1295 3330 1176 3380 1350 3068 1359 2789 1434 2433 1430

20 3811 1296 3792 1406 3633 1542 3417 1528 3128 1584 2792 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 PC CA PC CA PC CA PC

15 3452 1759 3871 1746 4242 1781 4792 1805 5362 1802 5209 1498 5619 1492

20 3341 1896 3694 1871 4027 1815 4447 1787 4908 1776 4857 1499 5230 1495

KFR-3601

GW/BPE

（220）

25 3257 1776 3465 1781 3697 1774 4198 1838 4576 1800 4488 1494 4844 1511

15 3462 1754 4075 1739 4627 1788 4780 1644 5133 1582 5123 1457 5017 1385

20 3362 1751 3861 1781 4285 1761 4545 1765 5022 1663 5092 1579 5113 1390

KFR-3502

GW/BPE

25 3265 1743 3638 1793 3963 1744 4296 1777 4706 1684 4934 1625 4991 1453

Note CA: Capacity(W)

PA: Power consumption(Kw)

6.PERFORMANCE DATA

1

6. PERFORMANCE DATA

6

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7.CONTROL MODE

17

1. Automatic

1.1 When the air conditioner is switched on and the remote controller is set to Auto mode, the air
conditioner will select running modes automatically according to the difference between the room
temperature and the setting temperature.

1.2 The running mode will be set when the machine is first switched on. Once set, the running mode
cannot be changed within 30 minutes.

1.3 If the difference between the room temperature and the setting temperature exceeds 3 degrees,
change the running mode immediately.

1.4 If the machine is turned off and restarted using the remote controller, the above conditions are
still good.

1.5 If the machine is powered off and restarted, the running mode must be re-selected.

1.6 The running frequency will be determined by the temperature difference.

2. Cooling

2.1 In the cooling mode, the preset temperature is determined by the remote controller. The
temperature range is 16 —30 .

2.2 The compressor will start 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.

T

setting

- T

indoor

Fan speed T

setting

- T

indoor

Fan speed

0 Low 0 Low

1 Mid 1 Mid
2 Mid 2 Mid
3 Mid 3 Mid
4 Mid 4 High

Temperature

difference

5 High

Temperature

difference

5 High

2.4 Outdoor fan speed

T

outdoor

28 High

T

outdoor

28 Determined by the outdoor coil tube temperature T

outdoor coil tube

, when

T

outdoor coil tube

40 High

35 T

outdoor coil tube

40 Mid

T

outdoor coil tube

35 Low

2.5 The four-way valve is off.

Dehumidification

1.1 In the dehumidification mode, the temperature is determined by the remote controller. The

temperature range is 16 —30 . The controller will determine the running mode according to
the indoor and outdoor temperature difference.

1.2 When the room temperature is 2 higher than the preset temperature, cooling run will be started.

When the temperature difference between the indoor and outdoor is lower than or equal to 2 ,the
drying mode will be started. When running in the drying mode, the compressor will alternate between
the low and high frequencies.

°Ñ

°Ñ

°Ñ

°Ñ
°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ
°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ

°Ñ °Ñ

°Ñ

°Ñ

7.CONTROL MODE

1.1 In this mode, the outdoor fan will work as follows:
Outdoor temperature 28 High
Outdoor temperature 28 and condenser temperature 40 High
Outdoor temperature 28 and 40 condenser temperature 35 Mid
Outdoor temperature 28 Low

Heating

1.1 In the heating mode, the set temperature is determined by the remote controller. The temperature

range is 16 —30 .

1.2 The compressor will start immediately when the machine is switched on; it will take at least 3min

for the compressor to restart if the machine is restarted.

1.3 If the compressor is started, it must run at least 5min.

1.4 When the air conditioner is switched off, the compressor will stop and the outdoor four-way valve

will be delayed off. The remaining heat will be discharged by the indoor unit before it stops.

1.5 Cold air prevention. When the air conditioner is started, the indoor unit will not run immediately.

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 compressor restarts, the cold air prevention will still be
working.

1.7 In this mode, the outdoor fan will work as follows:

Outdoor temperature 24 : Low
15 outdoor temperature 10 : Mid
Outdoor temperature 10 : High

1.8 The four-way valve is in conducting state.

2. Defrosting

2.1 The defrosting is done through changing the flow direction of refrigerant inside of the four-way

valve.

2.2 Defrosting conditions:
Continuous heating run for more than 30min
During single machine operation, T

outdoor

– T

outdoor coil

7 and lasts 5 minutes

2.3 Defrosting process:
Compressor and outdoor fan motor off four-way valve off compressor on defrosting
conditions met compressor off four-way valve on compressor on outdoor fan on
end

3. Ventilation(Fan mode)

During fan operation, only the indoor fan and the flap are running in the setting mode. If the fan speed

is set to Auto, it will enter in low-speed run.

18

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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 enabled, 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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7.CONTROL MODE

Other functions

1. Flap control

1.1 Press the FLAP button on the remote controller continuously, the flap will alternate within the

following eight positions: Auto, fixed (including the six positions of the flap from top to

1,2,3,4,5,6) and swing.

1.2 Auto: During the heating mode, the flap is set at position 5; during the cooling and

dehumidification mode, the flap is at position 2; during the fan mode, it is at position 2.

1.3 Fixed: The position of the flap is fixed at a certain position by the remote controller.

1.4 Scanning: During cooling and fan mode, the flap sways among positions 1—4; during heating

mode, the flap sways between positions 3—6.

1.5 The default mode is Auto.

1.6 When first turned on or turned off, the flap will turn to the furthermost positions to ensure well

closing of the flap. When started, the flap will turn to the furthermost positions. After the grille

is completely closed, it will turn to the setting position.

2. Man-machine communication

2.1 The indoor controller has two temperature sensors to detect the room temperature: one in the

controller and the other at the air inlet of indoor unit. The default airflow setting depends on

that detected by the remote controller. The remote controller detects room temperature once

every 20 seconds and transmits signals once every 3 minutes or when the detected

temperature is not the same. If the indoor controller cannot receive 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 man-machine communication mode cannot be cancelled by the switching-on and off

operations. When the machine is switched off, the man-machine communication symbol will

remain on.

2.3 When the machine is turned on, the man-machine communication symbol will appear. When

the air conditioner is started by the switch button of indoor unit, the man-machine

communication symbol will go off.

3. Timing on and off

3.1 Timing On: when the timing-on function is set by the remote controller, the timing-on function

of the air conditioner is activated and the timer symbol lights up. When the setting time

arrives, the machine starts with the setting mode after a signal from the remote controller is

received. If no signal is received at the setting time, the machine will run by automatic

settings. At the same time, the man-machine communication symbol goes off.

3.2 Timing Off: when the timing-off function is set by the remote controller, the timing-off

function of the air conditioner is activated and the timer symbol lights up. When the setting

time arrives, the machine shuts off after a signal from the remote controller is received. If no

signal is received at the setting time, the machine will automatically shut off. At the same

time, the man-machine communication symbol goes off.

3.3 The timing mode cannot be cancelled by the switching-on and off operations. When the

machine is switched off, the timer symbol remains on.

20

8. TROUBLESHOOTING

21

1. Trouble code display

When the controller creates protection, press the sensor button, the trouble codes will be
displayed at the place for the indoor temperature on the VFD of the indoor unit. Once a
trouble code appears due to the trouble of the air conditioner, it can not be cleared unless
the machine is powered off.
Trouble Code Table ( means the light diode lights up; means the diode goes off)

Outdoor unit display Content of trouble Indoor display code

LED02 LED03 LED04

Indoor sensor trouble 1

Evaporator sensor trouble 2

Evaporator freezing 3

Over hot of indoor heatexchanger 4

Communication trouble 5

Fan motor trouble 6

Air outlet sensor trouble 10

Lightness sensor trouble 11

Indoor unit E2PROM trouble 13

Outdoor sensor trouble 21

Condenser sensor trouble 22

Over hot of compressor 23

Over current 26

Overload protection 27

Power voltage trouble 28

Momentary power failure 29

Overload of outdoor unit for cooling 30

Defrosting 31

IPM trouble 33

Data failure of outdoor E2PROM 33

2. Trouble code display when frequency is restricted

when the protection function is in action, the compressor doesn’t work, only its frequency is

restricted, the LED of outdoor unit displays the work condition.

LED OF outdoor unit Serial

number

Cause of frequency

restriction

LED02 LED03 LED04
1 In good condition
2 Power voltage isn’t in

normal range
3 Overload of outdoor unit
4 Over current of outdoor

unit
5 Exhaust over hot
6

Evaporator freezing

7 Setting frequency

8. TROUBLESHOOTING

22

3. The content of trouble code display

3.1 Abnormal sensor: when the sensor is short circuited or cut off, the compressor will
stop, and the trouble code will be displayed.

3.2 Abnormal power module IPM: when the power module comes about such problems
as overheat, over current, short circuit, the compressor will stops, and the trouble code
will be displayed.

3.3 Temperature protection for the compressor exhaust
When the compressor exhaust temperature 90 , the compressor runs at the ascending
frequency;
When the temperature 90 , the compressor runs at the limit to the frequency
ascending;
When the temperature 106 , the compressor runs at the descending frequency;
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 overload protection

Cooling mode

Type KFR-3601GW/BPE KFR-4001GW/BPE KFR-3502GW/BPE Work condition

of compressor

Item Current Voltage Current Voltage Current Voltage

1．

6.8 1.86 8.5 2.32 6.8 1.86

Frequency up

2．

8.3 2.27 10.0 2.73 8.3 2.27

Frequency up

restriction

3．

9.8 2.68 11.5 3.14 9.8 2.68

Frequency down

4．

12.0 3.28 15.0 4.10 12.0 3.28

Stop

Heating mode

Type KFR-3601GW/BPE KFR-4001GW/BPE KFR-3502GW/BPE Work condition

of compressor

Item Current Voltage Current Voltage Current Voltage

1．

8.5 2.32 13.0 3.56 8.5 2.32

Frequency up

2．

10.0 2.73 14.5 3.97 10.0 2.73

Frequency up

restriction

3．

11.5 3.14 16.0 4.38 11.5 3.14

Frequency down

4．

14.0 3.83 17.0 4.65 14.0 3.83

Stop

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3.6 Abnormal power supply voltage protection
When the supply voltage is above 260V or below 150V, the compressor stops,
and the trouble code is displayed.

3.7 Overhot protection for the indoor heat exchanger

When the temperature of the indoor coil 70 , the compressor will stop;
When the temperature 55 , the outdoor flow speed will turn to the low speed, and
the compressor runs at the descending frequency;
When the temperature 52 and 55 , the compressor will prohibit the frequency
from rising.

3.8 Anti-frost protection for the indoor heat exchanger

Refer to the cooling cycle.

3.9 Momentary interruption protection for power supply

When the power supply lacks the cycle or is interrupted, the compressor stops
running, and the trouble code is displayed.

3.10 Start delay protection: When restarting 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 indoor unit has not received an
effective communication signal which returns from the outdoor unit. And at the
same time the trouble code is displayed. After another 3 minutes, the outdoor
will be powered on again. Once the communication returns to normal, the trouble
code will be cleared.

3.12 The trouble in the indoor fan motor: when the indoor micro-computer, depending

on the position of the rotor of the indoor motor, determines the motor is in
stoppage, lock or abnormal vibration state, the micro-computer will cut off the
driving signal of the indoor fan. 3 minutes later, it is restarted. If the trouble
occurs 4 times within 30 minutes, the air conditioner will stop, and the trouble
code will be displayed. It can not be restarted unless being powered on again.

8. TROUBLESHOOTING

23

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5.REFRIGERANT SYSTEM DIAGRAM6.PERFORMANCE CURVES5.REFRIGERANT SYSTEM DIAGRAM9.SERVICE FLOW CHART

24

Swi t ch on t he

power suppl y

No

Yes

No

Yes

Check t he r esul t

Repl ace t he
t r ansf or mer

No

Yes

Di spl ay boar d

t r oubl e

Yes

No

I ndoor cont r ol

boar d I s br oken

and r epl ace i t

Reconnect al l

t he wi r es or

r epl ace i t

Yes

No

St ar t up sel f - t est

f unct i on

Remot e cont r ol l er

t r oubl e or r epl ace t he

bat t er y

No

Yes

Di spl ay boar d t r oubl e

Yes

No

I ndoor cont r ol boar d

t r oubl e

No

Is the fuse

bl own?

No

Yes

Check and f i nd shor t ci r cui t or open ci r cui t among
ot her component s suc h as t r ansf or mer or f an mot or ?

Yes

No

I ndoor cont r ol boar d t r oubl e

Tr oubl e code 1

I ndoor t emper at ur e

sensor t r oubl e

Repl ace t he

t emper at ur e sensor

Yes

Repl ace t he i ndoor

cont r ol boar d

Tr oubl e code 2

I ndoor coi l sensor

t r oubl e

Repl ace t he i ndoor

coi l sensor

Repl ace t he i ndoor

cont r ol boar d

No

Yes

Does VFD scr een

di spl ay

Nor mal l y?

I s t he wi r es

poor l y

connect ed?

Check t he t r ansf or mer , I s

r esi st ance of wi ndi ng

0( shor t ci r cui t ) or ¡ Þ£ ¨open

ci r cui t £ ©£ ¿

Does i t r ecei ve

t he si gnal of

r emot e cont r ol l er ?

I s r emot e

cont r ol l er i n good

condi t i on ?

Af t er r epl aci ng

t he di spl ay
boar d, I s t her e
still trouble?

Af t er r epl aci ng

t he i ndoor
boar d, I s t her e
still trouble?

I s i ndoor

cont r ol boar d

short ci r cui t ?

I s t he r esi st ence
of sensor Nor mal ?

Is the

r esi st ence of

sensor cor r ect ?

Yes

Af t er r epl aci ng

t he di spl ay
boar d, I s t her e
still trouble?

5.REFRIGERANT SYSTEM DIAGRAM9.SERVICE FLOW CHART

Occur by chanc eNo

Tr oubl e code 3

I ndoor heat

exchanger I s f r eezed

No I ndoor coi l sensor

Yes

Swi ch of f t he power , st ar t

up t he ai r condi t oner af t er

t he i ce di sappear s

Our door cont r ol

boar d t r oubl e

Yes

Yes

I ndoor cont r ol

boar d t r oubl e and

r epl ace i t

No

Nor mal pr ot ect i onNo

Yes

Occur by chanc eYes

Tr oubl e code 4

i ndoor heat exchanger

I s over l oad

No

I ndoor coi l

sensor t r oubl e

Yes

Swi ch of f t he power , st ar t up t he

ai r condi t oner i n 10 mi nut es

Our door cont r ol

boar d t r oubl e

Yes

No

I ndoor cont r ol

boar d t r oubl e and

r epl ace i t

No

Nor mal

pr ot ect i on

No

Yes

Swi ch of f t he power , 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 .

Swi ch of f t he power , 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 compressor

st i l l r unni ng?

I s i ndoor heat

exchanger

st i l l f r eezed?

I s t he system

i n good

condi t i on?

I s compressor

st i l l r unni ng?

I s i ndoor heat

exchanger ver y hot ?

I s t he system

i n good

condi t i on?

I s t he system i n

good condi t i on?

Tr oubl e code 6

i ndoor f an mot or t r oubl e

No

Yes

I ndoor cont r ol boar d

t r oubl e and r epl ace i t

Set t he ai r condi t i oner

oper at e i n f an mode

No

Yes

No

No

Fan mot or t r oubl e and

r epl ace i t

Yes

Fan mot or t r oubl e

and r epl ace i t

Yes

No

Fan mot or t r oubl e and

r epl ace i t

I s i ndoor f an

mot or r unni ng?

Move t he axI s

and cr oss f an by

hand, do t hey

r ot at e smoot hl y?

I s r esi st ance of mai n

wi ndi ng 0( shor t

ci r cui t ) or ¡ Þ£ ¨open

ci r cui t £ ©£ ¿

Does f an mot or

st op wi t h t he

r emot e

cont r ol l er

Does t he sock et of

i ndoor cont r ol boar d

have power i nput ?

25

5.REFRIGERANT SYSTEM DIAGRAM9.SERVICE FLOW CHART

26

Tr oubl e code 5

communi cat i on

t r oubl e

No

Connect t he i ndoor

and out door uni t
agai n accor di ng t o
t he wi r i ng di agr am

Yes

Yes

Repl ace t he out door

cont r ol boar d and

st ar t up agai n

Our door cont r ol

boar d t r oubl e

Yes

No

I ndoor cont r ol

boar d t r oubl e and

r epl ace i t

No

Yes

Rect i f i er t r oubl e

and r epl ace i t

No

Yes

Ther e have some shor t

ci r cui t behi nd t he

st ar t up r esi st or

The I PM. cont r ol and

wave f i l t er boar d

I s br oken or shor t

ci r cui t

No

No

Yes No Repl ace i t

No

No

No

No

No

No

No

I ndoor cont r ol boar d

and r epl ace i t

Yes

Connect i on wi r e

t r oubl e and check

Yes

Connect i on wi r e

t r oubl e and check

Yes

Connect i on wi r e

t r oubl e and check

Yes

Wave f i l t er boar d

and r epl ace i t

Yes

Connect i on wi r e

t r oubl e

Repl ace t he t r oubl e uni t

Repl ace t he

t r oubl e uni t

Yes

Repl ace t he

t r oubl e uni t

Yes

connect i on wi r e

t r oubl e

r epl ace t he

t r oubl e uni t

Yes

Our door cont r ol boar d

t r oubl e and r epl ace i t

Yes

Repl ace I PM boar d

and f use

No

I ndoor cont r ol

boar d t r oubl e

Yes

No

Di spl ay boar d t r oubl e

and r epl ace i t

Yes

Nor mal pr ot ect i on

and r epl ace f use

No

I s t he vol t age

i nput of st ar t up

resistor correct?

I s t her e t he power

out put of i ndoor

uni t mai n

r el ay( RY01)?

I s t her e power out put

bet ween 1 and 2 on

t er mi nal panel of

i ndoor uni t ?

I s t her e power i nput

bet ween 1 and 2 on

t er mi nal panel of

out door uni t ?

I s t he f use i n
cont r ol box of

20A brok en?

Is wave filter

boar d open

ci r cui t ?

Does t he

r ect i f i er have

t he al t er nat i ng

cur r ent i nput ?

The st ar t up
r esi st or I s

over hot ?

I s t he r eact or

and wave f i l t er

boar d open

ci r cui t ?

Does t he power

i ndi cat or of
out door cont r ol
boar d l i ght up?

Are al l t he l ead

wi r es connec t ed

bet ween i ndoor and

out door uni t ?

I s t he system

i n good

condi t i on?

The cont r ol sys t em of out door

uni t has shor t ci r cui t

t r oubl e, check t he connect i on

wi r e, wave f i l t er boar d, out door

cont r ol boar d, I PM, r ect i f i er

and el ect r ol yse capaci t or

I s out door

cont r ol boar d

short ci r cui t ?

I s I PM boar d

short ci r cui t ?

The cont r ol sys t em of out door

uni t has shor t ci r cui t

t r oubl e, check t he connect i on

wi r e, wave f i l t er boar d, out door

cont r ol boar d, I PM, r ect i f i er

and el ect r ol yse capaci t or

I s t he system

i n good

condi t i on?

I s t he f use of

3. 15A bl own?

I s t he f use of

20A bl own?

5.REFRIGERANT SYSTEM DIAGRAM9.SERVICE FLOW CHART

27

Tr oubl e code 23

compr ssor over hot

pr ot ect i on

No

Out door cont r ol boar d

t r oubl e and r epl ace i t

Repl ace t he OLP

No

Yes

Nor mal

pr ot ect i on

Yes

Yes

Repl ace

di schar gi ng

sensor

No

Tr oubl e code 26

over cur r ent t r oubl e

No

Out door wave f i l t er

boar d t r oubl e and

r epl ace i t

Out door cont r ol

boar d t r oubl e

No

Yes

Nor mal

pr ot ect i on

Yes Yes

No

Yes Occur by chanc e

Tr oubl e code 27

None l oad t r oubl e

No

Wave f i l t er boar d

t r oubl e and r epl ace i t

I PM t r oubl e and

r epl ace i t

No

Yes

Yes

No

Yes

Compr essor

t r oubl e

Out door wave f i l t er boar d

t r oubl e and r epl ace i t

Out door cont r ol boar d

No

Yes

Tr oubl e code 28
vol t age of power

suppl y I s abNormal

Yes

Out door cont r ol

boar d t r oubl e and

r epl ace i t

No Nor mal pr ot ect i on

Tr oubl e code 29

power suppl y f ai l

moment ar y

No

Swi t ch of f t he power

suppl y and st ar t up

i n 3 mi nut es

Yes

The vol t age of power

suppl y I s out of

Nor mal r ange

Out door cont r ol

boar d t r oubl e

No

Yes

Reconnect wi r es or

r epai r t he sock et

Yes

Yes

No

No

I s t he OLP of

compr ssor open

ci r cui t ?

I s t he r esi st ance

of compr essor

di schar gi ng

sensor cor r ect ?

Swi ch of f and

st ar t up agai n, I s

it ok?

I s t he oper at i ng

cur r ent beyond

Nor mal r ange?

I s t he sur f ace of

compr essor ver y hot ?

Swi ch of f and

start up

agai n, I s i t ok?

Are t her e mi s- wr i ng, poor
cont act , or di sconnect i on

among t he sock et , i ndoor

uni t and out door uni t ?

Repl ace t he
out door cont r ol
boar d, I s i t ok?

Repl ace t he
out door cont r ol
boar d, I s i t ok?

swi ch of f and st ar t

up agai n, I s i t ok?

Repl ace t he
out door cont r ol
boar d, I s i t ok?

Does t hI s t r oubl e

st i l l appear ?

I s t he vol t age of

power suppl y Normal ?

I s t he vol t age of

bet ween I PM and

P¡ ¢N correct?

Do t her e have

vol t age out put

bet ween I PM and UVW?

I s t he compr essor

r unni ng?

5.REFRIGERANT SYSTEM DIAGRAM

Tr oubl e code 30

condenser over l oad

No

Yes

Out door cont r ol boar d

and r epl ace i t

Yes

No

Nor mal

pr et ect i on

Out door coi l

sensor t r oubl e

Tr oubl e code 33

EEPROM t r ou bl e

Out door cont r ol

boar d t r oubl e

Tr oubl e code 32

I PM t r oubl e

No

Yes

I PM t r oubl e and

r epl ace i t

Is the

I PM r adi at or ver y

hot ?

No

Yes

Nor mal pr ot ect i on

Assur e good
vent i l at i on

of out door

uni t and

good cont act

bet ween I PM

and r adi at or

Yes

No

Yes

Nor mal pr ot ect i on

No

Yes

No

Is the

I PM r adi at or ver y

hot ?

Yes

Yes

Yes

Yes

No

No

Out door cont r ol

boar d t r oubl e

Wave f i l er t r oubl e

and r epl ace i t

Repl ace t he
out door cont r ol
boar d, Does t hI s

t r oubl e di sappear ?

Repl ace t he wave

f i l t er boar d, Does

t hI s t r oubl e

di sappear ?

I PM t r oubl e appear

f r equent l y?

St ar t up t he ai r

condi t i oner i n 30

mi nut es, doen i t

wor k Normal l y?

I PM t 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 ?

Does t he t r oubl e

di appear i n 3

mi nut es ?

I s t he out door
heat exchanger

r eal l y hot ?

Tr oubl e code 11

l i ght ness s ensor t r oubl e

No

I ndoor cont r ol boar d

t r oubl e and r epl ace i t

Di spl ay boar d t r oubl e

and r epl ace i t

No

Yes

Reconnect or

r epl ace t he wi r es

Yes

Are al l t he wi r es

connect ed bet ween t he

i ndoor cont r ol boar d

and di spl ay boar d?

I s t her e ok

af t er r epl aci ng

t he di spl ay

boar d?

Tr oubl e code 13

EEPROM t r ou bl e

I ndoor cont r ol boar d

t r oubl e and r epl ace i t

Tr oubl e code 21

out door t emper at ur e

sensor t r oubl e

No

Out door t emper at ur e sensor

t r oubl e and r epl ace i t

Yes

Out door cont r ol

boar d t r oubl e and

r epl ace i t

Tr oubl e code 22

out door coi l sensor

t r oubl e

No

Out door t emper at ur e sensor

t r oubl e and r epl ace i t

Yes

I s t he r esi st ance

of sensor cor r ect ?

I s t he r esi st ance

of sensor cor r ect ?

Out door cont r ol

boar d t r oubl e and

r epl ace i t

9.SERVICE FLOW CHART

28

5.REFRIGERANT SYSTEM DIAGRAM6.PERFORMANCE CURVES5.REFRIGERANT SYSTEM DIAGRAM9.SERVICE FLOW CHART

29

Indoor electric control P.C. Board

KFR-3502G/BPE

5.REFRIGERANT SYSTEM DIAGRAM6.PERFORMANCE CURVES5.REFRIGERANT SYSTEM DIAGRAM9.SERVICE FLOW CHART

30

Indoor electric control P.C. Board

KFR-3601G/BPE

5.REFRIGERANT SYSTEM DIAGRAM6.PERFORMANCE CURVES5.REFRIGERANT SYSTEM DIAGRAM9.SERVICE FLOW CHART

31

Outdoor electric control P.C. Board

KFR-3502W/BPE
KFR-3601W/BPE
KFR-4001W/BPE

10.SENSOR PARAMETER

32

THE PARAMETER OF THE COIL AND OUTDOOR SENSOR

T('c) R(Ko) V(v ) T('c) R(Ko) V(v) T('c) R(Ko) V(v)

-10 27. 68 0. 7258 7 11. 52 1. 4488 24 5. 226 2. 3675

-9 26. 22 0. 76 8 10. 97 1. 4997 25 5 2. 4227

-8 24. 85 0. 7953 9 10. 45 1. 5512 26 4. 785 2. 4776

-7 23. 56 0. 8316 10 9. 963 1. 6027 27 4. 581 2. 5321

-6 22. 34 0. 8691 11 9. 497 1. 6553 28 4. 387 2. 5861

-5 21. 19 0. 9077 12 9. 056 1. 7083 29 4. 202 2. 6399

-4 20. 11 0. 9472 13 8. 638 1. 7619 30 4. 025 2. 6934

-3 19. 09 0. 9878 14 8. 241 1. 8159 31 3. 857 2. 7463

-2 18. 12 1. 0298 15 7. 865 1. 8703 32 3. 697 2. 7986

-1 17. 21 1. 0726 16 7. 508 1. 925 33 3. 545 2. 8502
0 16. 35 1. 1164 17 7. 169 1. 9799 34 3. 399 2. 9016
1 15. 54 1. 1611 18 6. 847 2. 0352 35 3. 26 2. 9523
2 14. 77 1. 207 19 6. 541 2. 0906 36 3. 128 3. 002
3 14. 05 1. 2533 20 6. 251 2. 1459 37 3. 002 3. 0512
4 13. 36 1. 3012 21 5. 975 2. 2014 38 2. 881 3. 0999
5 12. 72 1. 349 22 5. 712 2. 257 39 2. 766 3. 1476
6 12. 1 1. 3988 23 5. 463 2. 3123 40 2. 657 3. 1942

T('c) R(Ko) V(v) T('c) R(Ko) V(v) T('c) R(Ko) V(v)

-20 39. 58 0. 5307 9 10. 1 1. 5878 38 3. 265 2. 9504

-19 37. 58 0. 5558 10 9. 684 1. 6338 39 3. 151 2. 9932

-18 35. 69 0. 5818 11 9. 284 1. 6805 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. 646 3. 199

-13 27. 74 0. 7244 16 7. 549 1. 9185 45 2. 556 3. 2387

-12 26. 4 0. 7556 17 7. 249 1. 9667 46 2. 471 3. 2771

-11 25. 14 0. 7875 18 6. 962 2. 0151 47 2. 388 3. 3155

-10 23. 95 0. 8202 19 6. 688 2. 0636 48 2. 309 3. 3528

-9 22. 82 0. 8539 20 6. 427 2. 112 49 2. 233 3. 3896

-8 21. 75 0. 8885 21 6. 178 2. 1603 50 2. 159 3. 4262

-7 20. 74 0. 9237 22 5. 939 2. 2089 51 2. 089 3. 4615

-6 19. 79 0. 9596 23 5. 712 2. 257 52 2. 021 3. 4965

-5 18. 88 0. 9966 24 5. 494 2. 3053 53 1. 956 3. 5306

-4 18. 02 1. 0343 25 5. 286 2. 3533 54 1. 893 3. 5644

-3 17. 2 1. 0731 26 5. 086 2. 4014 55 1. 832 3. 5977

-2 16. 43 1. 1122 27 4. 896 2. 4489 56 1. 774 3. 6299

-1 15. 7 1. 152 28 4. 714 2. 4963 57 1. 718 3. 6616
0 15 1. 1929 29 4. 539 2. 5436 58 1. 664 3. 6926
1 14. 34 1. 2342 30 4. 372 2. 5904 59 1. 612 3. 7231
2 13. 71 1. 2765 31 4. 212 2. 6369 60 1. 562 3. 7528
3 13. 11 1. 3195 32 4. 059 2. 683 61 1. 513 3. 7824
4 12. 55 1. 3623 33 3. 912 2. 7288 62 1. 467 3. 8106
5 12. 01 1. 4063 34 3. 772 2. 7738 63 1. 422 3. 8386
6 11. 5 1. 4506 35 3. 637 2. 8188 64 1. 379 3. 8658
7 11. 01 1. 4959 36 3. 508 2. 8631 65 1. 337 3. 8927
8 10. 55 1. 541 37 3. 384 2. 907

THE PARAMETER OF THE INDOOR SENSOR

10.SENSOR PARAMETER

33

T('C) R(O) V(v) T(' C) R(O) V(v) T('C) R(O) V(v)

-10 313. 4 0. 3 31 44. 74 1. 545 71 9. 659 3. 372

-9 297. 2 0. 315 32 42. 89 1. 59 72 9. 331 3. 409

-8 281. 9 0. 331 33 41. 13 1. 636 73 9. 016 3. 446

-7 267. 5 0. 348 34 39. 44 1. 682 74 8. 712 3. 483

-6 253. 9 0. 365 35 37. 84 1. 729 75 8. 421 3. 519

-5 241. 1 0. 383 36 36. 3 1. 776 76 8. 14 3. 554

-4 229 0. 402 37 34. 84 1. 823 77 7. 869 3. 588

-3 217. 6 0. 421 38 33. 44 1. 871 78 7. 609 3. 622

-2 206. 8 0. 441 39 32. 11 1. 919 79 7. 359 3. 655

-1 196. 6 0. 462 40 30. 83 1. 967 80 7. 118 3. 688
0 186. 9 0. 483 41 29. 61 2. 016 81 6. 885 3. 72
1 177. 8 0. 506 42 28. 45 2. 064 82 6. 662 3. 751
2 169. 2 0. 529 43 27. 34 2. 112 83 6. 446 3. 781
3 161 0. 552 44 26. 27 2. 161 84 6. 239 3. 811
4 153. 3 0. 577 45 25. 25 2. 21 85 6. 039 3. 84
5 146 0. 602 46 24. 28 2. 258 86 5. 846 3. 869
6 139 0. 629 47 23. 35 2. 307 87 5. 661 3. 897
7 132. 5 0. 656 48 22. 46 2. 355 88 5. 482 3. 924
8 126. 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 2. 595 93 4. 678 4. 052
13 99. 66 0. 836 54 17. 85 2. 642 94 4. 534 4. 076
14 95. 13 0. 869 55 17. 19 2. 689 95 4. 395 4. 099
15 90. 82 0. 902 56 16. 56 2. 735 96 4. 261 4. 122
16 86. 74 0. 937 57 15. 96 2. 781 97 4. 132 4. 144
17 82. 85 0. 972 58 15. 38 2. 826 98 4. 007 4. 165
18 79. 16 1. 008 59 14. 82 2. 872 99 3. 886 4. 187
19 75. 65 1. 045 60 14. 29 2. 916 100 3. 77 4. 207
20 72. 32 1. 083 61 13. 78 2. 96 101 3. 658 4. 227
21 69. 15 1. 122 62 13. 28 3. 005 102 3. 549 4. 246
22 66. 13 1. 161 63 12. 81 3. 048 103 3. 444 4. 265
23 63. 27 1. 201 64 12. 36 3. 09 104 3. 343 4. 284
24 60. 54 1. 242 65 11. 93 3. 132 105 3. 15 4. 32
25 57. 94 1. 283 66 11. 51 3. 174 106 3. 059 4. 337
26 55. 46 1. 325 67 11. 11 3. 214 107 2. 97 4. 354
27 53. 11 1. 368 68 10. 73 3. 254 108 2. 884 4. 37
28 50. 86 1. 411 69 10. 36 3. 294 109 2. 802 4. 386
29 48. 72 1. 455 70 10 3. 333 110 2. 721 4. 401
30 46. 68 1. 5

THE PARAMETER OF THE DISCHARGE SENSOR

Screws

Front Panel

1. Remove the grille

1) Open the front panel.

2) Take out the screws in the grille.

3) Hold the both sides of the grille, dragging towards

oneself and then remove it.

2. Remove the electrical control box

1) Remove the indoor coil sensor from the sensor bracket.

2) Remove the switching board.

3) Take out the screws of the terminal board then Remove the

terminal board.

4) Disconnect all the circuitry of the printed circuit board.

5) Remove the printed circuit board and 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. Remove the air outlet frame

1) Take out the screws of the stepper motor and disconnect

the stepper motor and the air outlet frame.

2) Remove the stepper motor.

3) Disconnect the drainage hose and the air outlet frame.

4) Take out the screws of the air outlet frame.

5) Remove the air outlet frame.

KFR-3601G/BPE KFR-4001G/BPE

Indoor Coil Sensor

Screw

Screws

Terminal Board

Stepper Motor

Screws

Drainage Hose

Sensor Bracket

Screws

11. DISASSEMBLY INSTRUCTIONS

OPERATION PROCEDURE

PHOTOS

34

Screws

1) Disconnect the evaporator and the other parts then remove

the screws of the evaporator.

2) Remove 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 motor.

Cross-Flow Fan

Motor Cover

Fan Motor

KFR-3601G/BPE KFR-4001G/BPE

11. DISASSEMBLY INSTRUCTIONS

35

11. DISASSEMBLY INSTRUCTIONS

跡掑蹟隊

Front panel

Grille

1. Remove the grille

1) Open the screw cover in the grille.

2) Take out the screws of the grille.

3) Hold the both sides of the front panel and drag it towards

oneself, shown the switching board of the indoor unit.

4) Remove the grille.

2. Remove the electrical control box

1) Remove the electrical control box cover.

2) Remove the indoor coil sensor from the sensor bracket.

3) Take out the screws of the terminal and remove the

terminal board.

4) Disconnect all 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 box and

remove the electrical control box.

3. Remove the air outlet frame

1) Take out the screws of the stepper motor, disconnect

the stepper motor and the air outlet frame.

2) Remove the stepper motor.

3) Disconnect the drainage hose and the air outlet frame.

4) Take out the screws of the air outlet frame.

5) Remove the air outlet frame.

KFR-3502G/BPE

OPERATION PROCEDURE

PHOTOS

Indoor Coil Sensor

Terminal Screw

Screws

Terminal

Electrical Control Box Cover

Grille Screws

Display Board

Stepper Motor

36

11. DISASSEMBLY INSTRUCTIONS

1) Disconnect the evaporator and the other parts, take out

the screws of the evaporator.

2) Remove the evaporator.

4.Remove the evaporator

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 cross-flow fan.

5. Remove the fan motor and the cross-flow fan

KFR-3502G/BPE

Evaporator

Screws

Cross-Flow Fan Screws

Fan Motor

Cross-Flow Fan

Rubber Cover

37

Screw

Handle

Valve Cover

Front Panel

Back Panel

Top Cover

1. Remove the top panel

1) Take out the screws of the top panel.

2) Remove the top panel.

2. Remove the front panel

1) Take out the screws of the front panel.

2) Take out the screws of the strengthen plate and remove the

strengthen plate.

3) Take out the screws of the electrical control box.

4) Remove 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 electrical control box and the other parts.

4) Take out the screws of the electrical control box.

5) Remove the electrical control box.

KFR-3502W/BPE,KFR-3601W/BPE,KFR-4001W/BPE

OPERATION PROCEDURE

PHOTOS

Screw

Screw

Screw

Screw

Screw

Screw

Screw

Screw

Screw

Screw

Screw

Screw

Strengthen Plate

Screw

Screw

Screw

Screw

11. DISASSEMBLY INSTRUCTIONS

38

1) Take out the screws of the back panel.

2) Remove the back panel.

4. Remove the back panel

1) Take out the screws of the fan and remove the fan.

2) Take out the screws of the fan motor and remove the

fan motor.

3) Take out the screws of the fan supporter and remove the

fan supporter.

4) Take out the 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 parts of the outdoor units

Compreesor

ass'y

Base ass'y

Condenser ass'y

Screw

Barrier ass'y

Fan

Screw

KFR-3502W/BPE,KFR-3601W/BPE,KFR-4001W/BPE

Fan Supporter

Seperator Support Plate

Screw

Screw

11. DISASSEMBLY INSTRUCTIONS

39

5.Remove the fan ,fan motor,fan supporter and the partition

plate.

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

12. PARTS LIST

41

KFR- 3601G/ B P KFR- 4001G/ B P

Key NO. Description Quantity Part NO.

1 Front Panel 1 RZA-2-1601-003-XX-0
2 Air Filter 2 RZA-0-2305-005-XX-0
3 Electrical Control Box cover 1 RZA-2-2369-006-XX-0

4 Display panel 1 RZA-0-2258-003-XX­5 Grille 1 RZA-0-1501-004-XX-0
6 Water Plate 2 RZA-0-2326-102-XX-0
7 Evaporator Supporter 1 RZA-2-2219-014-XX-0
8 Evaporator Ass’y 1 RZA-0-0055-033-XX-0
9 Bearing Ass’y 1 RZA-0-2510-100-XX-0

10

Cross-Flow Fan Ass’y

1 RZA-0-2509-100-XX-0

11

Down Left Cover

1 RZA-2-2369-007-XX-0

12

Base Ass’y

1 RZA-0-2201-101-XX-0
13 Insulator Cover Ass’y 1 RZA-0-2209-016-XX-0

14

Mounting Plate

RZA-2-2478-100-XX-0

15

Installation Plate

1 RZA-2-2230-100-XX-0
16 Exchange Ass’y 1 RZA-0-2538-001-XX-0
17

Mounting Plate

1 RZA-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-0-0000-048-XX-0
23

Drainage Hose Ass’y

1 RZA-0-1303-100-XX-0

24 Vane Install Plate Ass’y 1 RZA-0-1514-011-XX-0
25

Short Vane Lever

1 RZA-2-1514-009-XX-0
26

Long Vane Lever

1 RZA-2-1514-013-XX-0
27

Van e

9 RZA-2-1519-003-XX-0
28

Down Flap

1 RZA-2-1523-005-XX-0
29 Up Flap 1 RZA-2-1523-004-XX-0
30 Sensor Bracket 1 852-2-5303-215-01-0
31

Indoor Coil Sensor

1 RZA-0-5259-051-XX-0
32

Terminal

1 RZA-0-5706-025-XX-0
33

Power Transformer

1 RZA-0-5263-022-XX-0

34

Transformer Fixing Plate

1 RZA-2-2222-008-XX-0
35

Power Cable

1 RZA-0-5250-035-XX-A
36 Display board 1 RZA-0-5172-146-XX-A
37

Electrical Control Box

1 RZA-0-5301-020-XX-0
38 Control Board 1 RZA-0-5172-145-XX-0
39 Switching Ass’y 1 RZA-0-5152-023-XX-A
40

Remote Controller

1 RZA-0-0054-044-XX-D

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

12. PARTS LIST

43

KFR- 3502W/ BPE KFR- 3601W/ BPE KFR- 4001W/ BPE

Key NO. Description Part NO. Q'ty Q'ty Q'ty

1 Fan Guard Ass’y 852-2-1321-156-01-0

1 1 1

2 Cabinet Ass’y 852-2-1112-241-01-0

1 1 1

3 Propeller Fan Ass’y 852-2-2502-136-01-0

1 1 1

4 Fan Motor RZA-0-0000-031-XX-0

1 1 1

5 Mounting Plate Ass’y 852-2-2354-205-01-0

1 1 1

6 Condenser Ass’y 852-0-4102-076-00-0

1 1 1

7 Top Panel Ass’y 852-0-2309-152-00-0

1 1 1

8 Back Panel Ass’y 852-2-1120-247-01-0

1 1 1

9 Compressor Ass’y RZA-0-4526-055-XX-0

1

9 Compressor Ass’y RZA-0-4526-050-XX-0

1 1

10 Bottom 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

RZA- 0- 2649- 022- XX- 0

1 1 1

14 IPM Board RZA-0-5172-158-XX-0

1 1 1

15 Terminal Board RZA-0-5306-026-XX-0

1 1 1

16 Fuse 4-2349-562-38-0

1 1 1

17 Angle Terminal Board RZA-0-5306-026-XX-0

1 1 1

18 Fixed Capacitor 4-2239-561-61-2

1 1 1

19 Printed Electrical Board

Ass'y

RZA-0-5172-253-XX-0

1

19 Printed Electrical Board

Ass'y

RZA-0-5172-147-XX-3

1 1

20 Printed Electrical Board

Ass'y

RZA-0-5172-119-XX-0

1 1 1

21 Solenoid Valve Ass’y RZA-0-4525-031-XX-0

1 1 1

22 1/4 Valve Ass'y 852-0-4515-250-00-0

1 1 1

23 1/2 Valve Assy 852-0-4501-878-00-0

1 1 1

24

Noise Defending Cover 852-2-2476-308-00-2

1 1 1

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

12. PARTS LIST

45

KFR-3502G/BPE

Key No. Description Part No. Q’ty

1 Front Panel RZA-2-1601-006-XX-0 1

2 Display Frame RZA-2-2306-005-XX-0 1

3 ornament grille RZA-2-1501-010-XX-0 1

4 Grille RZA-2-1501-009-XX-0 1

5 Air Filter RZA-0-2305-007-XX-0 2

6 Vane Plate RZA-2-2478-102-XX-0 3

7 Van e RZA-2-1523-015-XX-0 12

8 Vane Lever RZA-2-1514-027-XX-0 2

9 Flap RZA-2-1523-013-XX-0 1

10 Drainage Hose Ass’y 852-0-1303-221-XX-0 1

11 Stepper Motor 529-0-0000-062-0A-0 1

12 Air Outlet Frame RZA-2-1504-022-XX-0 1

13 Evaporator Ass’y RZA-0-4116-064-XX-0 1

14 Indoor Temperature Sensor RZA-0-5259-051-XX-1 1

15 Evaporator Supporter RZA-2-2219-019-XX-0 1

16 Water Plate RZA-2-2326-105-XX-0 1

17 Bearing Housing Ass’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 RZA-2-2201-104-XX-0 1

23 Base Foam RZA-2-2405-022-XX-0 1

24 Mounting Plate RZA-2-2487-005-XX-0 1

25 Installation Plate RZA-2-2230-102-XX-0 1

26 Mounting Plate RZA-2-2362-020-XX-0 1

27 Electrical Control Box RZA-2-5301-028-XX-0 1

28 Electrical Control Box cover RZA-2-2369-013-XX-0 1

29 Electrical Control Box cover RZA-2-2369-014-XX-0 1

30 PCB RZA- 0-5177-014-XX-0 1

31 Power Transformer RZA-0-5263-022-XX-0 1

32 Terminal RZA-0-5306-041-XX-0 1

33 Connection Cable Clip RZA-0-5304-017-XX-0 1

34 Power Cable Clip RZA-0-5304-016-XX-0 1

35 Remote Controller

RZA-0-0054-054-XX-0 1

1

36 Power Wire

RZA-0-5150-035-XX-0 1

11

37 Display Ass’y RZA-0-5172-219-XX-0 1

38 Indoor Coil Sensor RZA-0-5259-050-XX-0 1