Mitsubishi PKH-1.6FKHA3, PKH-2FKHA2, PKH-2FKHA3, PKH-3FKHA2, PKH-3FKHA3 Service Manual
...
SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
2001
No.OC130
REVISED EDITION-A
Wall MountedSeries PKH
Indoor unit
[Model names] [Service Ref.]
PKH-1.6FKHA PKH-1.6FKHA3
PKH-2FKHA PKH-2FKHA3
PKH-2.5FKHA PKH-2.5FKHA2
PKH-2.5FKHA3
PKH-3FKHA PKH-3FKHA2
PKH-3FKHA3
PKH-4FKHSA PKH-4FKHSA2
PKH-4FKHSA3
CONTENTS
1. TECHNICAL CHANGE·························2
2. PART NAMES AND FUNCTIONS········3
3. SPECIFICATIONS·································5
Indoor unit
FILTER
CHECK MODE
TEST RUN
REMOTE CONTROLLER
4. DATA···················································10
5. OUTLINES AND DIMENSIONS··········15
6. WIRING DIAGRAM ·····························19
7.
REFRIGERANT SYSTEM DIAGRAM
8. OPERATION FLOW-CHART··············22
9. MICROPROCESSOR CONTROL ·······26
10. TROUBLESHOOTING························48
11. SYSTEM CONTROL···························59
12. DISASSEMBLY PROCEDURE···········64
13. PARTS LIST········································67
14. OPTIONAL PARTS·····························76
PKH-2.5FKHA3, PKH-3FKHA3
and PKH-4FKHSA3 are added
in REVISED EDITION-A.
Please void OC130.
This manual does not cover the
following outdoor units. When
servicing them, please refer to
the service manual No.OC128
REVISED EDITION-C and this
manual in a set.
[Service Ref.]
PUH-1.6VKA2, PUH-1.6VKA3,
PUH-2VKA2, PUH-2VKA3,
PUH-2.5VKA2, PUH-2.5VKA3,
PUH-3VKA2, PUH-3VKA3,
PUH-3YKA2, PUH-3YKA3,
PUH-3YKA4,
PUH-4YKSA3, PUH-4YKSA4
······21
1 TECHNICAL CHANGE
PKH-2.5FKHA2 ➔ PKH-2.5FKHA3
PKH-3FKHA2 ➔ PKH-3FKHA3
PKH-4FKHSA2 ➔ PKH-4FKHSA3
● DRAIN PAN shape has changed.
● NOSE shape has changed.
● UNDER PLATE shape has changed.
● BOX ASSEMBLY shape has changed.
PKH-1.6FKHA3 ➔ PKH-1.6GKLH
PKH-2FKHA3 ➔ PKH-1.6GKLH
● New model (Refer to OC229)
2
2 PART NAMES AND FUNCTIONS
Air intake
room air is suctioned
in here.
(Removes dust and dirt from the intake air.)
Disperses airflow up and
down as well as adjusts the
angle of air flow direction.
Filter Air intake grille
Air outletAir outlet
Swing louvers
Air flow can be changed to horizontally
by moving the Guide vane to the left or
right.
Guide vane
● Indoor Unit
● Remote controller
● Once the operation of the unit is set, subsequent operations can only be performed by pressing the ON/OFF button
repeatedly.
● Operation buttons
w button
This switches between continuous
operation and the timer operation
button
Press this button to switch the cooler
electronic dry (dehumidify), automatic and heater modes.
i TEMP. button
This sets the room temperature. The
temperature setting can be performed in 1°C units.
Setting range :
Cooler 19°C to 30°C
Heater 17°C to 28°C
q button
This sets or switches the current
time, start time and stop time.
241
The sets the ventilation fan speed.
button
FILTER
CHECK MODE
TEST RUN
ON/OFF button
This switches between the operation
and stop modes each time it is
pressed. The lamp on this button
lights during operation.
j button
This adjusts the vertical angle of the
ventilation.
FILTER button
This resets the filter service indication display
The model name of the remote controller is indicated.
PAR-JH241KA(2.5 / 3 / 4)
PAR-JH150KA(1.6 / 2)
k button
This switches the horizontal fan
motion ON and OFF.
(This button does not operate in this
model.)
3
CHECK-TEST RUN button
Only press this button to perform an
inspection check or test operation.
Do not use it for normal operation
● Display
CENTRALLY
CONTROLLED display
This indicates when the unit is con-
trolled by optional features such as
central control type remote controller.
w display
This indicates when the continuous
operation and time operation modes
are set.
It also display the time for the timer
operation at the same time as when
it is set.
OPERATION MODE display
This indicates the operation mode.
STANDBY display
This indicates when the standby
mode is set from the time the sleep
operation starts until the heating air
is discharged.
r display
The current time , start time and stop
time can be displayed in ten second
intervals by pressing the time switch
button. The start time or stop time is
always displayed during the timer
operation.
241
display
The selected fan speed is displayed.
FILTER
CHECK MODE
TEST RUN
In this display example on
the bottom left, a condition
where all display lamps light
is shown for explanation purposes although this differs
from actual operation.
j display
This indicates the air direction.
—88°C display
The temperature of the suction air is
displayed during operation. The display range is 8° to 39°C. The display
flashes 8°C when the actual temperature is less than 8° and flashes
39°C when the actual temperature is
greater than 39°C.
Operation lamp
This lamp lights during operation,
goes off when the unit stops and
flashes when a malfunction occurs.
DEFROST display
This indicates when the defrost oper-
ation is performed.
CHECK MODE
TEST RUN
This display lights in the check mode
or when a test operation is performed.
display
CHECK display
This indicates when a malfunction
has occurred in the unit which should
be checked.
—88°C display
This displays the selected setting
temperature.
Display
This lamp lights when electricity is
supplied to the unit.
Caution
● Only the display lights when the unit is stopped and power supplied to the unit.
● When power is turned ON for the first time the (CENTRAL CTRL) display appears to go off momentarily but this is not a
malfunction.
● When the central control remote control unit, which is sold separately, is used the ON-OFF button, button and
i TEMP button do not operate.
● “NOT AVAILABLE” is displayed when the k button are pressed.This indicates that this room unit is not equipped with
the fan direction adjustment function and the louver function.
FILTER
This display lights when the filter
need to be cleaned.
display
4
3
Item
Function
Capacity
Total input
Service Ref.
Power supply(phase,cycle,voltage)
External finish
Heat exchanger
Fan
Booster heater
Operation control & Thermostat
Noise level(Low-High)
Cond. drain connection. O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
External finish
Refrigerant control
Compressor
Heat exchanger
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Pipe size O.D.
Connection method
Between the indoor & outdoor unit
Input
Running current
Starting current
Fan(drive) ✕ No.
Fan motor output
Airflow(Low-High)
External static pressure
Input
Running current
Staring current
Model
Motor output
Starter type
Protection devices
Fan(drive) ✕ No.
Fan motor output
Airflow
Charge
Service Ref.
W
D
H
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
INDOOR UNITOUTDOOR UNIT
REFRIGERANT PIPING
W
Btu/h
kW
kW
A
A
kW
m
3
/X<CFM>
Pa(mmAq)
kW
>
A<in.>
A<in.>
A<in.>
A<in.>
kg<lbs>
>
A<in.>
A<in.>
A<in.>
A<in.>
A<in.>
kg<lbs>
kg<lbs>
kW
A
A
kW
kW
m
3
/X<CFM>
PKH-1.6FKHA
3
Cooling Heating
4,500 4,650(6,050)
15,350 15,900(20,600)
1.51
0.07
0.32
0.40
PKH-1.6FKHA
3
Single Phase, 50Hz, 220-230-240V
Munsell 3.4Y 7.7/0.8(White)
Plate fin coil
Line flow(direct) ✕ 1
0.030
10-13<353-459>
0<direct blow>
1.4
Remote controller & built-in
36-43
20<13/16>
1,250<49-3/16>
200<7-7/8>
300<11-13/16>
18<40>
PUH-1.6VKA
2
PUH-1.6VKA
3
Single Phase, 50Hz, 220-230-240V
1.411.44
6.606.74
33
Munsell 5y 7/1
Capillary tube
Hermetic
RH247VFC
1.2
Line start
Internal thermostat, HP switch
Plate fin coil
Propeller (direct) ✕ 1
0.065
45<1,590>
Reverse cycle
49
870<34-1/4>
295+24<11-5/8 add 1>
650<25-5/8>
53<117>
R-22
2.2<4.9>
9.52<3/8>
15.88<5/8>
Flared
Flared
Max. 40m
Max. 40m
1.48(2.88)
0.07(1.47)
0.32(6.15)
0.40(6.23)
Fan
SPECIFICATIONS
Note 1. Rating Conditions (JIS B 8616)
Cooling : Indoor : D.B. 27°C (80°F), W.B. 19°C (66°F)
Outdoor : D.B. 35°C (95°F), W.B. 24°C (75°F)
Heating : Indoor : D.B. 20°C (68°F)
Outdoor : D.B. 7°C (45°F), W.B. 6°C (43°F)
Note 2. Above data based on indicated voltage
Indoor Unit Single phase 240V 50Hz
Outdoor Unit Single phase 240V 50Hz
5
Item
Function
Capacity
Total input
Service Ref.
Power supply(phase,cycle,voltage)
Input
Running current
Starting current
External finish
Heat exchanger
Fan(drive) ✕ No.Fan
Fan motor output
Airflow(Low-High)
External static pressure
Booster heater
INDOOR UNITOUTDOOR UNIT
Operation control & Thermostat
Noise level(Low-High)
Cond. drain connection. O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
Input
Running current
Staring current
External finish
Refrigerant control
Compressor
Model
Motor output
Starter type
Protection devices
Heat exchanger
Fan
Fan(drive)✕No.
Fan motor output
Airflow
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Pipe size O.D.
Connection method
Between the indoor & outdoor unit
REFRIGERANT PIPING
Note 1. Rating Conditions (JIS B 8616)
Cooling : Indoor : D.B. 27°C (80°F), W.B. 19°C (66°F)
Heating : Indoor : D.B. 20°C (68°F)
Outdoor : D.B. 35°C (95°F), W.B. 24°C (75°F)
Outdoor : D.B. 7°C (45°F), W.B. 6°C (43°F)
Gas
Indoor side
Outdoor side
Height difference
Piping length
W
D
H
W
D
H
Liquid
Service Ref.
Cooling Heating
W
Btu/h
kW
5,500 6,250(7,650)
18,800 21,300(26,100)
2.27
Single Phase, 50Hz, 220-230-240V
kW
A
A
0.07
0.32
0.40
kW
3
/X<CFM>
m
Pa(mmAq)
kW
>
A<in.>
A<in.>
A<in.>
A<in.>
kg<lbs>
Single Phase, 50Hz, 220-230-240V
kW
A
A
kW
kW
3
/X<CFM>
m
>
A<in.>
A<in.>
A<in.>
kg<lbs>
kg<lbs>
A<in.>
A<in.>
Note 2. Above data based on indicated voltage
Indoor Unit Single phase 240V 50Hz
Outdoor Unit Single phase 240V 50Hz
PKH-2FKHA
3
2.29(3.69)
PKH-2FKHA
3
0.07(1.47)
0.32(6.15)
0.40(6.23)
Munsell 3.4Y 7.7/0.8(White)
Plate fin coil
Line flow(direct) ✕ 1
0.030
10-13<353-459>
0(direct blow)
1.4
Remote controller & built-in
36-43
20<13/16>
1,250<49-3/16>
200<7-7/8>
300<11-13/16>
18<40>
PUH-2VKA
PUH-2VKA
3
2
45
Munsell 5Y 7/1
Capillary tube
Hermetic
NH38VMD
1.7
Line start
Internal thermostat, HP switch
Plate fin coil
Propeller (direct) ✕ 1
0.065
45<1.590>
Reverse cycle
49
870(34-1/4)
295+24<11-5/8 add 1>
650<25-5/8>
64<141>
R-22
2.2<4.9>
9.52<3/8>
15.88<5/8>
Flared
Flared
Max. 40m
Max. 40m
2.222.20
9.959.86
6
Item
Function
Capacity
Total input
Service Ref.
Power supply(phase,cycle,voltage)
Input
Running current
Starting current
External finish
Heat exchanger
Fan(drive) ✕ No.Fan
Fan motor output
Airflow(Low-High)
External static pressure
Booster heater
INDOOR UNITOUTDOOR UNIT
Operation control & Thermostat
Noise level(Low-High)
Cond. drain connector. O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
Input
Running current
Staring current
External finish
Refrigerant control
Compressor
Model
Motor output
Starter type
Protection devices
Heat exchanger
Fan
Fan(drive)✕No.
Fan motor output
Airflow
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Pipe size O.D.
Connection method
Between the indoor & outdoor unit
REFRIGERANT PIPING
Note 1. Rating Conditions (JIS B 8616)
Cooling : Indoor : D.B. 27°C (80°F), W.B. 19°C (66°F)
Outdoor : D.B. 35°C (95°F), W.B. 24°C (75°F)
Heating : Indoor : D.B. 20°C (68°F)
Outdoor : D.B. 7°C (45°F), W.B. 6°C (43°F)
Service Ref.
Btu/h
3
/X<CFM>
m
Pa(mmAq)
A<in.>
W
D
H
A<in.>
A<in.>
A<in.>
kg<lbs>
3
/X<CFM>
m
W
D
H
A<in.>
A<in.>
A<in.>
kg<lbs>
kg<lbs>
Liquid
Gas
A<in.>
A<in.>
Indoor side
Outdoor side
Height difference
Piping length
PKH-2.5FKHA
Cooling Heating
W
6,500 7,200(9,300)
22,200 24,600(31,700)
kW
2.56
PKH-2.5FKHA
Single Phase, 50Hz, 220-230-240V
kW
A
A
0.095
0.44
0.80
Munsell 3.4Y 7.7/0.8(White)
Line flow(direct) ✕ 2
kW
15-20<530-706>
kW
Remote controller & built-in
>
1,400<55-1/8>
PUH-2.5VKA
Single Phase, 50Hz, 220-230-240V
kW
A
A
Munsell 5y 7/1
kW
Internal thermostat, HP switch
Propeller (direct) ✕ 1
kW
Reverse cycle
>
295+24<11-5/8 add 1>
850<33-7/16>
Note 2. Above data based on indicated voltage
Indoor Unit Single phase 240V 50Hz
Outdoor Unit Single phase 240V 50Hz
2
PKH-2.5FKHA
2
PKH-2.5FKHA
Plate fin coil
0.040
0(direct blow)
2.1
39-45
20<13/16>
235<9-1/4>
340<13-3/8>
26<57>
2
PUH-2.5VKA
52
Capillary tube
Hermetic
NH41VMD
2.0
Line start
Plate fin coil
0.085
50<1,764>
52
870(34-1/4)
64<150>
R-22
2.8<6.2>
9.52<3/8>
15.88<5/8>
Flared
Flared
Max. 50m
Max. 50m
3
2.33(4.43)
3
0.095(2.195)
0.44(9.19)
0.80(9.55)
3
2.232.46
9.7810.68
7
Item
Function
Capacity
Total input
Service Ref.
Power supply(phase,cycle,voltage)
External finish
Heat exchanger
Booster heater
Operation control & Thermostat
Noise level(Low-High)
Cond. drain conn. O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
External finish
Refrigerant control
Compressor
Heat exchanger
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Pipe size O.D.
Connection method
Between the indoor & outdoor unit
Input
Running current
Starting current
Fan(drive) ✕ No.
Fan motor output
Airflow(Low-High)
External static pressure
Input
Running current
Staring current
Model
Motor output
Starter type
Protection devices
Fan(drive)✕No.
Fan motor output
Airflow
Charge
Service Ref.
W
D
H
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
INDOOR UNITOUTDOOR UNIT
REFRIGERANT PIPING
W
Btu/h
kW
kW
A
A
kW
m
3
/X<CFM>
Pa(mmAq)
kW
>
A<in.>
A<in.>
A<in.>
A<in.>
kg<lbs>
>
A<in.>
A<in.>
A<in.>
A<in.>
A<in.>
kg<lbs>
kg<lbs>
kW
A
A
kW
kW
m
3
/X<CFM>
PKH-3FKHA
2
PKH-3FKHA
3
Cooling Heating
7,900 9,100(11,200)
27,000 31,000(38,200)
3.25
0.095
0.44
0.80
PKH-3FKHA
2
PKH-3FKHA
3
Single Phase, 50Hz, 220-230-240V
Munsell 3.4Y 7.7/0.8(White)
Plate fin coil
Line flow(direct) ✕ 2
0.040
15-20<530-706>
0(direct blow)
2.1
Remote controller & built-in
39-45
20<13/16>
1,400<55-1/8>
235<9-1/4>
340<13-3/8>
26<57>
PUH-3VKA2 PUH-3VKA
3
/ PUH-3YKA2 PUH-3YKA3 PUH-3YKA
4
Single Phase, 50Hz, 220-230-240V/3Phase, 50Hz, 380-400-415V(4wires)
2.94/2.943.15/3.15
12.89/4.8113.82/5.16
58/37
Munsell 5Y 7/1
Capillary tube
Hermetic
w
2.2/2.4
Line start
Internal thermostat, HP switch/Thermal relay, thermal switch
Plate fin coil
Propeller (direct) ✕ 1
0.085
50<1,764>
Reverse cycle
52
870(34-1/4)
295+24<11-5/8 add 1>
850<33-7/16>
75<165>
R-22
3.2<7.1>
9.52<3/8>
15.88<5/8>
Flared
Flared
Max. 50m
Max. 50m
3.04(5.14)
0.095(2.195)
0.44(9.19)
0.80(9.55)
Fan
Fan
Note 1. Rating Conditions (JIS B 8616)
Cooling : Indoor : D.B. 27°C (80°F), W.B. 19°C (66°F)
Heating : Indoor : D.B. 20°C (68°F)
Outdoor : D.B. 35°C (95°F), W.B. 24°C (75°F)
Outdoor : D.B. 7°C (45°F), W.B. 6°C (43°F)
Note 2. Above data based on indicated voltage
Indoor Unit Single phase 240V 50Hz
Outdoor Unit Single phase 240V 50Hz
3 phase 415V 50Hz
8
ww
PUH-3VKA2, PUH-3VKA3...... NH52VDA
PUH-3YKA2, .......................... NH52YDA
PUH-3YKA3, PUH-3YKA4.... NH52YDE
Item
Function
Capacity
Total input
Service Ref.
Power supply(phase,cycle,voltage)
Input
Running current
Starting current
External finish
Heat exchanger
Fan
Fan(drive) ✕ No.
Fan motor output
Airflow(Low-High)
External static pressure
Booster heater
INDOOR UNITOUTDOOR UNIT
Operation control & Thermostat
Noise level(Low-High)
Cond. drain connector. O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
Input
Running current
Staring current
External finish
Refrigerant control
Compressor
Model
Motor output
Starter type
Protection devices
Heat exchanger
Fan
Fan(drive)✕No.
Fan motor output
Airflow
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Pipe size O.D.
Connection method
Between the indoor & outdoor unit
REFRIGERANT PIPING
Note 1. Rating Conditions (JIS B 8616)
Cooling : Indoor : D.B. 27°C (80°F), W.B. 19°C (66°F)
Outdoor : D.B. 35°C (95°F), W.B. 24°C (75°F)
Heating : Indoor : D.B. 20°C (68°F)
Outdoor : D.B. 7°C (45°F), W.B. 6°C (43°F)
Service Ref.
Btu/h
3
/X<CFM>
m
Pa(mmAq)
A<in.>
W
D
H
A<in.>
A<in.>
A<in.>
kg<lbs>
3
/X<CFM>
m
W
D
H
A<in.>
A<in.>
A<in.>
kg<lbs>
kg<lbs>
Liquid
Gas
A<in.>
A<in.>
Indoor side
Outdoor side
Height difference
Piping length
PKH-4FKHSA
Cooling Heating
W
9,500 10,700(13,100)
32,400 36,500(44,700)
kW
3.31
PKH-4FKHSA
Single Phase, 50Hz, 220-230-240V
kW
A
A
0.114
0.53
0.90
Munsell 3.4Y 7.7/0.8(White)
Line flow(direct) ✕ 2
kW
22-28<777-989>
kW
Remote controller & built-in
>
1,680<66-1/8>
PUH-4YKSA
3, 50Hz, 380-400-415V(4wires)
kW
A
A
Munsell 5Y 7/1
PUH-4YKSA
3:NH56YDA PUH-4YKSA4:NH56YE
kW
Thermal relay, thermal switch, HP switch, anti-phase protector
Propeller (direct) ✕ 2
kW
Reverse cycle
>
295+24<11-5/8 add 1>
1,258<49-1/2>
Note 2. Above data based on indicated voltage
Indoor Unit Single phase 240V 50Hz
Outdoor Unit 3 phase 415V 50Hz
2
PKH-4FKHSA
2
PKH-4FKHSA
Plate fin coil
0.070
0(direct blow)
2.4
41-46
20<13/16>
235<9-1/4>
340<13-3/8>
30<66>
3
PUH-4YKSA
40
Capillary tube
Hermetic
2.7
Line start
Plate fin coil
0.065+0.065
95<3,350>
54
870(34-1/4)
94<207>
R-22
4.2<9.2>
9.52<3/8>
19.05<3/4>
Flared
Flared
Max. 50m
Max. 50m
3
3.30(5.70)
3
0.114(2.514)
0.53(10.53)
0.90(10.90)
4
3.193.20
5.225.24
9
4 DATA
1. PERFORMANCE DATA
1) COOLING CAPACITY
Indoor
intake
air
W.B. ˚C
16
18
PKH-1.6FKHA
PKH-2FKHA3
PKH-2.5FKHA2
PKH-2.5FKHA3
PKH-3FKHA2
PKH-3FKHA3
PKH-4FKHSA2
PKH-4FKHSA3
Note CA : Capacity (W)
P.C. : Power consumption (kW)
3
20
22
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
CA
4,540
4,834
5,131
5,431
5,549
5,908
6,271
6,638
6,557
6,982
7,411
7,845
7,970
8,486
9,007
9,534
9,584
10,204
10,832
11,465
Outdoor intake air D.B. ˚C
CA
4,081
4,355
4,645
4,950
4,988
5,323
5,677
6,050
5,895
6,291
6,709
7,150
7,164
7,646
8,154
8,690
8,615
9,194
9,806
10,450
35
P.C.
1.46
1.49
1.53
1.56
2.19
2.24
2.30
2.35
2.47
2.53
2.59
2.65
3.13
3.21
3.29
3.37
3.19
3.27
3.35
3.43
20 25 30Service Ref.
P.C.
1.21
1.23
1.26
1.28
1.82
1.86
1.89
1.93
2.05
2.09
2.13
2.17
2.60
2.66
2.71
2.76
2.65
2.71
2.76
2.81
CA
4,415
4,706
5,010
5,327
5,397
5,752
6,124
6,511
6,378
6,798
7,237
7,694
7,752
8,262
8,796
9,352
9,322
9,936
10,577
11,246
P.C.
1.26
1.29
1.31
1.34
1.90
1.94
1.97
2.01
2.14
2.18
2.23
2.27
2.72
2.77
2.83
2.88
2.77
2.82
2.88
2.94
CA
4,253
4,535
4,831
5,142
5,198
5,543
5,905
6,285
6,144
6,551
6,979
7,428
7,467
7,961
8,482
9,028
8,979
9,574
10,200
10,856
P.C.
1.36
1.39
1.42
1.45
2.04
2.09
2.13
2.18
2.30
2.36
2.41
2.46
2.92
2.99
3.06
3.12
2.98
3.05
3.11
3.18
40 45
CA
3,899
4,167
4,451
4,750
4,765
5,093
5,440
5,806
5,646
6,027
6,430
6,855
6,862
7,325
7,815
8,332
8,252
8,808
9,398
10,020
P.C.
1.55
1.59
1.64
1.68
2.34
2.40
2.46
2.53
2.64
2.70
2.77
2.85
3.35
3.43
3.52
3.62
3.41
3.49
3.59
3.69
CA
3,706
3,970
4,249
4,543
4,530
4,852
5,193
5,552
5,373
5,747
6,143
6,561
6,530
6,985
7,467
7,974
7,852
8,400
8,979
9,589
P.C.
1.65
1.70
1.75
1.81
2.49
2.55
2.63
2.71
2.80
2.87
2.96
3.06
3.56
3.65
3.76
3.88
3.62
3.72
3.83
3.95
Cooling capacity correction factors
Service Ref.
PKH-1.6FKHA
PKH-2FKHA
PKH-2.5FKHA2
PKH-2.5FKHA3
PKH-3FKHA2
PKH-3FKHA3
PKH-4FKHSA2
PKH-4FKHSA3
3
3
5m 10m 15m 20m 25m 30m 35m 40m 45m 50m
1.00
1.00
1.00
1.00
1.00
0.093
0.992
0.989
0.981
0.989
0.984
0.983
0.980
0.968
0.980
Refrigerant piping length(one way)
0.978
0.978
0.970
0.952
0.970
0.969
0.966
0.960
0.940
0.960
0.961
0.959
0.950
0.925
0.950
0.956
0.950
0.940
0.913
0.940
0.948
0.945
0.930
0.900
0.930
-
-
0.920
0.886
0.920
-
-
0.910
0.874
0.910
10
2) HEATING CAPACITY
Indoor
intake
air
W.B. ˚C
15
20
PKH-1.6FKHA
3
25
15
PKH-2FKHA3
20
25
15
PKH-2.5FKHA2
PKH-2.5FKHA3
20
25
15
PKH-3FKHA2
PKH-3FKHA3
20
25
15
PKH-4FKHSA2
PKH-4FKHSA3
Note CA : Capacity (W)
P.C. : Power consumption (kW)
20
25
CA
3,184
3,049
2,930
4,280
4,098
3,939
4,931
4,721
4,537
6,232
5,967
5,735
7,328
7,016
6,743
Outdoor intake air D.B. ˚C
CA
4,714
4,538
4,370
6,336
6,100
5,874
7,229
7,027
6,767
9,225
8,881
8,553
10,847
10,443
10,056
5
P.C.
1.35
1.45
1.56
2.09
2.25
2.41
2.12
2.29
2.45
2.77
2.99
3.20
3.01
3.24
3.47
-10 -5 0Service Ref.
P.C.
1.01
1.09
1.15
1.56
1.68
1.79
1.59
1.71
1.82
2.07
2.23
2.37
2.25
2.43
2.58
CA
3,650
3,506
3,364
4,905
4,713
4,521
5,651
5,429
5,209
7,142
6,862
6,583
8,398
8,068
7,741
P.C.
1.12
1.20
1.28
1.73
1.86
1.98
1.76
1.89
2.02
2.29
2.47
2.63
2.49
2.68
2.86
CA
4,160
4,003
3,844
5,591
5,380
5,167
6,441
6,198
5,952
8,141
7,834
7,523
9,572
9,211
8,845
P.C.
1.23
1.32
1.42
1.90
2.05
2.19
1.93
2.09
2.23
2.52
2.72
2.91
2.74
2.95
3.16
10 15
CA
5,312
5,112
4,942
7,139
6,871
6,643
8,225
7,916
7,653
10,395
10,004
9,672
12,223
11,763
11,373
P.C.
1.48
1.59
1.70
2.28
2.46
2.64
2.32
2.50
2.68
3.03
3.26
3.50
3.29
3.54
3.80
CA
5,952
5,724
5,560
8,000
7,693
7,473
9,216
8,863
8,609
11,648
11,201
10,881
13,696
13,171
12,794
P.C.
1.61
1.73
1.86
2.49
2.68
2.87
2.53
2.73
2.92
3.30
3.56
3.82
3.59
3.86
4.14
Heating capacity correction factors
Service Ref.
PKH-1.6FKHA
PKH-2FKHA
3
PKH-2.5FKHA2
PKH-2.5FKHA3
PKH-3FKHA2
PKH-3FKHA3
PKH-4FKHSA2
PKH-4FKHSA3
5m 10m 15m 20m 25m 30m 35m 40m 45m 50m
1.00
3
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Refrigerant piping length(one way)
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
0.998
0.998
0.998
0.998
0.998
0.995
0.995
0.995
0.995
0.995
-
-
0.993
0.993
0.993
-
-
0.990
0.990
0.990
11
2. PERFORMANCE CURVE
1.4
1.2
1.0
0.8
0.6
1.4
1.2
1.0
0.8
0.6
0.4
-5 5 15 25 35 46
OUTDOOR D.B.(°C)
TOTAL INPUT (RATIO) CAPACITY (RATIO)
INDOOR W.B.(°C)
INDOOR W.B.(°C)
22
20
18
16
22
20
18
16
1.4
1.2
1.0
0.8
0.6
1.4
1.2
1.0
0.8
0.6
0.4
-12-10 -5 0 5 10 15
OUTDOOR W.B.(°C)
INDOOR D.B.(°C)
INDOOR D.B.(°C)
15
20
25
25
20
15
TOTAL INPUT (RATIO) CAPACITY (RATIO)
HeatingCooling
3. ELECTRICAL DATA
Indoor unit· · · · · 220V 50Hz 1phase
Outdoor unit · · · 220V 50Hz 1phase / 380V 50Hz 3phase
Heat
1.39
0.07
0.32
0.40
1.32
6.59
30
PKH-2FKHA
PUH-2VKA3
Cool
5,400
2.19
0.07
0.32
0.40
2.12
9.83
43
Service Ref.
Mode
Capacity(W)
Total Input(kW)
Outdoor unit Indoor unit
Indoor unit
Outdoor unit
Input(kW)
Current(A)
Starting current(A)
Input(kW)
Current(A)
Starting current(A)
PKH-1.6FKHA3
PUH-1.6VKA2 PUH-2VKA2 PUH-2.5VKA2 PUH-3VKA2
PUH-1.6VKA3
Cool
4,400
4,550
(5,750)
1.43
(2.59)
0.07
(1.27)
0.32
(5.77)
0.40
(5.85)
1.36
6.79
30
Heat
6,150
(7,350)
2.21
(3.41)
0.07
(1.27)
0.32
(5.77)
0.40
(5.85)
2.14
9.93
43
PKH-2.5FKHA2
3
PKH-2.5FKHA3
PUH-2.5VKA3 PUH-3VKA3
Cool
6,400
2.51
0.095
0.440
0.70
2.41
11.18
52
Heat
7,100
(8,900)
2.26
(4.06)
0.095
(1.895)
0.440
(8.620)
0.70
(8.88)
2.16
10.02
52
Cool
7,800
3.23
0.095
0.440
0.70
3.13
14.67
54
PKH-3FKHA2
PKH-3FKHA3
PUH-3YKA2
PUH-3YKA3
PUH-3YKA4
54
Cool
7,800
3.23
0.095
0.440
0.70
3.13
5.23
34
Heat
9,000
(10,800)
3.02
(4.82)
0.095
(1.895)
0.440
(8.620)
0.70
(8.88)
2.92
13.68
Heat
9,000
(10,800)
3.02
(4.82)
0.095
(1.895)
0.440
(8.620)
0.70
(8.88)
2.92
4.88
34
PKH-4FKHSA2
PKH-4FKHSA3
PUH-4YKSA3
PUH-4YKSA4
Cool
9,400
3.28
0.11
0.530
0.80
3.17
5.29
37
Heat
10,500
(12,500)
3.27
(5.27)
0.114
(2.114)
0.530
(9.620)
0.80
(9.89)
3.16
5.28
37
12
Indoor unit· · · · · 230V 50Hz 1phase
Outdoor unit· · · · 230V 50Hz 1phase / 400V 50Hz 3phase
Indoor unit
Service Ref.
Outdoor unit
Mode
Capacity(W)
Total Input(kW)
Input(kW)
Current(A)
Starting current(A)
Input(kW)
Current(A)
Starting current(A)
Outdoor unit Indoor unit
Indoor unit· · · · · 240V 50Hz 1phase
Outdoor unit· · · · 240V 50Hz 1phase / 415V 50Hz 3phase
Indoor unit
Service Ref.
Outdoor unit
Mode
Capacity(W)
Total Input(kW)
Input(kW)
Current(A)
Starting current(A)
Input(kW)
PKH-1.6FKHA3
PUH-1.6VKA2 PUH-2VKA2 PUH-2.5VKA2 PUH-3VKA2
PUH-1.6VKA3
Cool
1.47
0.40
1.40
6.76
32
1.51
0.40
1.44
4,600
(5,900)
(2.73)
0.070
(1.370)
0.320
(5.970)
(6.05)
4,650
(6,050)
(2.88)
0.070
(1.470)
0.320
(6.15)
(6.23)
4,450
0.070
0.320
PKH-1.6FKHA3
PUH-1.6VKA2 PUH-2VKA2 PUH-2.5VKA2 PUH-3VKA2
PUH-1.6VKA3
Cool
4,500
0.070
0.320
Heat
1.43
0.40
1.36
6.57
32
Heat
1.48
0.40
1.41
PKH-2FKHA3
PUH-2VKA3
Cool
5,450
(7,500)
2.23
0.070
(1.370)
0.320
(5.970)
0.40
2.16
9.78
44
PKH-2FKHA3
PUH-2VKA3
Cool
5,500
(7,650)
2.27
0.070
(1.470)
0.320
0.40
2.20
Heat
6,200
2.25
(3.55)
0.070
0.320
0.40
(6.05)
2.18
9.87
44
Heat
6,250
2.29
(3.69)
0.070
0.320
(6.15)
0.40
(6.23)
2.22
PKH-2.5FKHA2
PKH-2.5FKHA3
PUH-2.5VKA3 PUH-3VKA3
52
Heat
7,150
(9,050)
2.30
(4.20)
0.095
(1.995)
0.440
(8.70)
0.80
(9.50)
2.20
9.86
52
Heat
7,200
(9,300)
2.33
(4.43)
0.095
(2.195)
0.440
(9.19)
0.80
(9.55)
2.23
7,850
0.095
0.440
14.22
7,900
0.095
0.440
Cool
6,450
2.54
0.095
0.440
0.80
2.44
10.94
PKH-2.5FKHA2
PKH-2.5FKHA3
PUH-2.5VKA3 PUH-3VKA3
Cool
6,500
2.56
0.095
0.440
0.80
2.46
Cool
3.24
0.80
3.14
56
Cool
3.25
0.80
3.15
PKH-3FKHA2
PKH-3FKHA3
Heat
9,050
(10,950)
3.03
(4.93)
0.095
(1.995)
0.440
(8.70)
0.80
(9.50)
2.93
13.27
56
PKH-3FKHA2
PKH-3FKHA3
Heat
9,100
(11,200)
3.04
(5.14)
0.095
(2.195)
0.440
(9.19)
0.80
(9.55)
2.94
PUH-3YKA2
PUH-3YKA3
PUH-3YKA4
Cool
7,850
3.24
0.095
0.440
0.80
3.14
5.21
PUH-3YKA2
PUH-3YKA3
PUH-3YKA4
Cool
7,900
3.25
0.095
0.440
0.80
3.15
36
Heat
9,050
(10,950)
3.03
(4.93)
0.095
(1.995)
0.440
(8.70)
0.80
(9.50)
2.93
4.86
36
Heat
9,100
(11,200)
3.04
(5.14)
0.095
(2.195)
0.440
(9.19)
0.80
(9.55)
2.94
PKH-4FKHSA2
PKH-4FKHSA3
PUH-4YKSA3
PUH-4YKSA4
Cool
9,450
3.30
0.114
0.530
0.90
3.19
5.23
PKH-4FKHSA2
PKH-4FKHSA3
PUH-4YKSA3
PUH-4YKSA4
Cool
9,500
3.31
0.114
0.530
0.90
3.20
39
Heat
10,600
(12,800)
3.29
(5.49)
0.114
(2.314)
0.530
(10.10)
0.90
(10.47)
3.18
5.22
39
Heat
10,700
(13,100)
3.30
(5.70)
0.11
(2.514)
0.53
(10.53)
0.90
(10.90)
3.19
Current(A)
Starting current(A)
Outdoor unit Indoor unit
6.74
33
6.60
33
9.86
45
9.95
45
13
10.68
52
9.78
52
13.82
58
12.89
58
5.16
37
4.81
37
5.24
40
5.22
40
4. STANDARD OPERATION DATA
Service Ref.
Mode
PKH-1.6FKHA
Cooling Heating
3
PKH-2FKHA3
Cooling Heating
PKH-2.5FKHA2
PKH-2.5FKHA3
Cooling Heating
PKH-3FKHA2
PKH-3FKHA3
Cooling Heating
Cooling Heating
PKH-4FKHSA2
PKH-4FKHSA3
Cooling Heating
Capacity
Input
W
kW
Indoor unit Service Ref.
Phase,Hz
Volts
Amperes
Outdoor unit Service Ref.
Phase,Hz
Volts
Amperes
Discharge pressure
Suction pressure
Discahrge temperature
Condensing temperature
Suction temperature
MPa
(
kg/cm
MPa
(
kg/cm
˚C
˚C
˚C
4,500
PKH-1.6FKHA3
0.320 0.320
PUH-1.6VKA
1.51
1,50
240
4,650
1.48
5,500
2.27
PKH-2FKHA3
1,50
240
0.320 0.320
PUH-2VKA
2
6,250
2.29
6,500
2.56
PKH-2.5FKHA2
PKH-2.5FKHA3
1,50
240
0.440 0.440
PUH-2.5VKA
2
7,200
2.33
7,900
3.25
0.440 0.440
PUH-3VKA
2
9,100
PKH-3FKHA2
PKH-3FKHA3
PUH-1.6VKA3 PUH-2VKA3 PUH-2.5VKA3 PUH-3VKA3
1,50
240
6.74 6.60
1.74
2
)
(
)
17.7
0.52
2
)
(
)
5.3
77 78
47 47
8 1
1.72
(
17.5
0.41
(
4.18
)
)
1,50
240
9.86 9.95
1.87
(
19.1
0.42
(
4.28
1.99
)
(
20.3
0.36
)
(
3.67
86 90
51 53
2 -2
1,50
240
10.68 9.78
2.00
)
(
)
20.4
0.52
)
(
)
5.3
85 74
53 44
7 -3
1.62
(
16.5
0.36
(
3.67
1,50
240
13.82 12.89
2.07
)
(
)
21.1
0.45
)
(
)
4.59
90 86
53 52
6 -2
(
(
3.04
1,50
2
1.96
20.0
0.37
37.7
7,900
3.25
240
0.440 0.440
PUH-3YKA
PUH-3YKA3
PUH-3YKA4
3,50
415
5.16 4.81
2.07
)
(
)
21.1
0.45
)
(
)
4.59
90 86
53 52
6 -2
9,100
3.04
1.96
(
20.0
0.35
(
3.57
9,500
3.31
PKH-4FKHSA2
PKH-4FKHSA3
0.530 0.530
2
PUH-4YKSA
PUH-4YKSA4
5.24 5.22
1.80
)
(
18.4
0.51
)
(
)
5.2
79 76
49 46
8 -1
1,50
240
3,50
415
)
10,700
3.30
1.69
(
17.2
0.37
(
37.7
3
)
)
D.B.
W.B.
D.B.
D.B.
W.B.
m
˚C
˚C
˚C
˚C
˚C
5 5
27 20
19 15
14.6 38.9
35 7
24 6
0.77
0.17
-
-
5 5
27 20
19 15
13.0 44.3
35 7
24 6
0.71
0.15
-
-
5 5
27 20
19 15
14.5 37.9
35 7
24 6
0.83
0.11
-
-
5 5
27 20
19 15
13.2 43.4
35 7
24 6
0.74
0.12
-
-
5 5
27 20
19 15
13.2 43.4
35 7
24 6
0.74
0.12
-
-
5 5
27 20
19 15
14.3 40.4
35 7
24 6
0.80
0.11
-
-
Ref.pipe length
Intake air
temperature
Discharge air
Indoor side Refrigetrant circuit Electrical circuit Total
temperature
Intake air
temperature
side
Outdoor
SHF
BF
The unit of pressure has been changed to MPa on the international system of unit (SI unit system).
The converted score against the traditional unit system can be gotten according to the formula below.
1(MPa) = 10.2(kg/FF)
5. OUTLET AIR SPEED AND COVERAGE RANGE
2
PKH-3FKHA
PKH-3FKHA3
12.4
Air flow m3/
Air speed m/
min
sec
Coverage range m (ft)
PKH-1.6FKHA3
13
4.0
9.1
PKH-2FKHA
13
4.0
9.1
PKH-2.5FKHA
3
PKH-2.5FKHA3
20
4.9
12.4
The air coverage range is the value up to the position where the air speed is 0.25m/sec. when air is blown out horizontally from
the unit at the Hi notch position.
The coverage range should be used only as a general guideline since it varies according to the size of the room and the furniture inside the room.
20
4.9
2
PKH-4FKHSA
PKH-4FKHSA3
28
5.4
15.3
2
14
5
Pipe position
Left side
Liquid pipe
Gas pipe
Service space required
around indoor unit
(100 for left-hand
side piping)
Right side
130 or less
2 tapping screws
for installation plate
(Necessary clearance for
Unit installation)
Drain pipe
Front
50 or more
2-unit hangers
Unit center
Liquid pipe position
Gas pipe position
(Width of unit)
Knock out hole for
left-rear piping
Knock out hole for
left-rear piping
Rear piping hole
2 X5 - 2.9 hole
for tapping screw
Details of installation plate
1 Sleeves are available on
the market.
2 This size shows the lower
end of through hole.
Sleeve
90 90~ 100
Through hole
150 or more
Knock out hole for
left-hand side piping
Ref.pipes & drain pipe
215
168
2134
8
20
70
300
47
30 or more
180 or more
80
25
35
60
Left side
Air intake
Front
1250
449 Air intake
Auto vanes
Service panel for
power supply connection
449 Air intake
968 Air intake
48
236
227
Right side
Terminal block
Right side
Knock out hole for right piping
(2:1)
Knock-out hole for
night-hand side piping
Knock out hole
for piping
8
60
Knock out hole for piping
Terminal block for control
Terminal block & pipe position
Drainage
Drainage(Flexible hole: length 1200)
Liquid pipe
Gas pipe
Lower side
Terminal block for
power supply
Knock out hole for under-piping
15 or less
bolt
Installation bolt position
200
B
B
A
A
8
8
60
91
65
20
70
(2:1)
70
Lower side
976
16 -louvers
(manual)
500
479 Air outlet479 Air outlet
26
173
223
222
143
553
635
685
170
190
200
1100
50
1
Knock out hole
for piping
1
2
2
3/8F
5/8F
0355380130
177
227
(178)
(375)
447
190
13- 14
hole
60
1250
330
80
0
53
68- 5
hole
277
Tapping screw
300
491
625
476
450
405
323
276
229
179
150
70
24
0
70
150
174
224
271
318
374
9
73
405
450
476
486
625
(Height ut unit)
85
45
286X
2
R52.5R52.5R52.5
R52.5R52.5R52.5
OUTLINES AND DIMENSIONS
1. INDOOR UNIT
PKH-1.6FKHA3
PKH-2FKHA3
Unit : mm
15
PKH-2.5FKHA2 , PKH-2.5FKHA3
PKH-3FKHA2 , PKH-3FKHA3
Gas pipe
Terminal block for power supply
Terminal block for remote controller
Unit : mm
Top
62.5
13
235
45
235
45
235
45
235
Knock out hole for right piping
Refrigerant pipe. Drain pipe
235
Right side
Front
1400
Air intake
1090
Left side
C
15
Bolt
197
Terminal block for control
Liquid pipe
Drain hose
58
42
107
111
(Gas pipe)
(Liquid pipe)
55
120
183
Drain hose
1110
Liquid pipe 9.52(3/8F)
Gas pipe 15.88(5/8F)
240
Air outlet
552
Lower side
Auto vane
1120
Air outlet
B
Change vane (manual)
Knock out hole for under-piping
Refrigerant pipe. Drain pipe
552
Under panel
Removable at left-hand
side piping
280
60
18430
Rear piping opening
340
25
2980
3030
10
90
245
285
455
990
10 91=(910)
19
91
Drainage range
on right-hand side
900
Drainage range
on left-hand side
18
18
610
Range for left rear piping opening
180
240 280 314
12-ø6 hole for
tapping screw
225
Drain hose for
Knock out hole for
left piping
A
30
left-hand side piping
4
100
39
37
74
65
37
Unit center
32
98
39
Knock out hole for piping
A B C
30
37
74
4 39
Wall fixture
100
66-ø6 hole for
tapping screw
32-ø12 hole for bolt
16
PKH-4FKHSA2 , PKH-4FKHSA3
235
45
235
45
235
45
235
45
235
62.5
13
58
42
340
197
Top
Front
Right side
Left side
1680
1370
Air intake
235
C
Knock out hole for right piping
Knock out hole for left piping
Drain hose for left-hand side piping
Drain hose
Drain hose
Lower side
Auto vane
(Gas pipe)
Bolt
Gas pipe
15
Terminal block for power supply
Terminal block for control
Terminal block for remote controller
(Liquid pipe)
Gas pipe 19.05(3/4F)
Liquid pipe 9.52(3/8F)
Liquid pipe
A
30
65
39
98
37
74
4 39
100
30
37
74
4
2980
280
3030
18430
60
10
39
37
65
100
A B C
Knock out hole for wiring
25
1110
183
240
B
1400
55
120
102
111
694
Air outlet
694
Air outlet
Change vane (manual)
Under panel
(Removable at left-hand side piping)
Knock out hole for under-piping
Refrigerant pipe. Drain pipe
Rear piping opening
Range for left rear piping openingRange for left rear piping opening
12-ø6 hole for tapping screw
84-ø6 hole for
tapping screw
Wall fixture
Unit out line
Unit center
41-ø12 hole for bolt
295 225
18
18
91
900
1270
595
285
245
19
240 280 314
750
90
Drainage range
on right-hand side
13 91=(1183)
180
Drainage range
on left-hand side
Unit : mm
17
18
130
Rear side wiring arrangement opening.
120
FILTER
CHECK MODE
TEST RUN
FILTER
CHECK MODE
TEST RUN
46
83.5
SW18
SW17
CAUTION
2. REMOTE CONTROLLER
Unit : mm(inch)
18
6
SYMBOL
C
CN1 <R.B>
CN2 <R.B>
CN2L <I.B>
CN51 <I.B>
FAN2
F1 <I.B>
FS1,2
H
I.B
LED1 <I.B>
LED2 <I.B>
LS
MF
MV
R.B
RT1
NAME
FAN MOTOR CAPACITOR
PROGRAM TIMER CONNECTOR
REMOTE SWITCH CONNECTOR
LOSSNAY CONNECTOR
CENTRALLY CONTROL CONNECTOR
EMERGENCY OPERATION CONNECTOR
FUSE (6.3A 250V)
THERMAL FUSE (121:/10A)
HEATER
INDOOR CONTROLLER BOARD
DC 12V POWER LED
DC 5V POWER LED
LIMIT SWITCH
FAN MOTOR
VANE MOTOR
REMOTE CONTROLLER BOARD
ROOM TEMPERATURE THERMISTOR
(0:/15".25:/5.4"DETECT)
SYMBOL
RT2
SW1 <I.B>
SW2 <I.B>
SW3 <I.B>
SW5,6 <I.B>
SW7 <I.B>
SW17 <R.B>
SW18 <R.B>
T
TB2
TB4
TB5,6
✕4 <I.B>
ZNR
26H
88H
NAME
PIPE TEMPERATURE THERMISTOR
(0:/15".25:/5.4"DETECT)
MODE SELECTOR
ADDRESS SELECTOR
EMERGENCY OPERATION SWITCH
MODEL SELECTOR
MODEL SELECTOR
ADDRESS SELECTOR
FUNCTION SELECTOR
TRANSFORMER
POWER SUPPLY TERMINAL BLOCK
INDOOR/OUTDOOR CONNECTING WIRE
TERMINAL BLOCK
REMOTE CONTROLLER TRANSMISSION LINE
TERMINAL BLOCK
FAN MOTOR RELAY
VARISTOR
HEATER THERMAL SWITCH
HEATER CONTACTOR
WIRING DIAGRAM
PKH-1.6FKHA3 , PKH-2FKHA3
MF
C
I.B
POWER SUPPLY
~(1 PHASE)
AC220-240V 50Hz
AC220V 60Hz
WHT
RED
FAN1
1
FAN2
1 3 5
SW2
ON
OFF
123456101234
BLK
X4
X4
SW5
L
N
WHT
CN6V
VANE
ZNR
1234
LS
MV
31
SW6
RED
RED
BLU
CND
POWER
SW3
SW7
ON
OFF
123
SW1
123456789
RED RED
TB2
RED
BLU
GRN/YLW
WHT
F1
12
88H
53
240V
230V
220V
RED
YLW
ORN
YLW
CNT
TRANS
LED1 12V
POWER
HEATER
CN24
1
BLU
4
T
LED2 5V
POWER
CENTRALLY
CONTROL
FS2
FS1
11.1VAC
14.2VAC
REMOCON
POWER
CN40
CN51
H
RED
43
35
4 2 13
CN21
PIPE
CN20
INTAKE
RED
21 1 13 3
LOSSNAY
CN2L
BRN
CN24
HEATER
GRN/YLW
BRN
CN4T
TRANS
TO
REMOCON
CN22
OUTDOOR
CN30
1 12 2
CN23
VANE
I.B
L
N
POWER SUPPLY
~(1 PHASE)
AC220-240V 50Hz
AC220V 60Hz
TB2
2FKHA1.6FKHAMODELS
ON
SW7
OFF
TRANSMISSION WIRES
DC12V
TB5
2
BLU
1
12
3
2
1
BLU
BRN
ORN
YLW
TB4
3
TO OUTDOOR UNIT
2
CONNECTING WIRES
1
DC12V
R.B
RT2
RT1
2 1
GRY
16
88H
BRN
YLW
1 2
63
GRY
ON
OFF
SW18
OFF
ON
4321
SW17
OFF
ON
87654321
26H
123123
TB6
45 23 1
3 2 1
A01 B02
CN1
CN2
NOTES :
1. Since the indoor fan motor (MF) is connected with 230, 240V power. using 220V power will require a setting change of the dip switch (SW7<I.B>) on the indoor
controller board as shown in fig :
fig w1
Indoor fan motor (MF) for 220V.
2. Since the indoor transformer (T) is connected with 240V power if 220,230V power is used. Change the wiring connection showing fig :
fig w2
When power supply is
w1.
230V
220V
SW5
ON
OFF
240V
230V
220V
2 3 4
1
YELLOW
ORANGE
RED
ON
OFF
1
2 3 4
w2.
3. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
4. Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers.
5. Symbols used in wiring diagram above are, : Connector, / : Terminal block.
6. Emergency operation
If remote controller or microcomputer fails but there is no other trouble, emergency operation is possible by setting dip switch (SW3<I.B>) on the indoor controller board.
[Check items]
(1)Make sure that no other trouble exist the outdoor unit. Trouble with the outdoor unit prevents emergency operation.
(If any trouble exists the outdoor unit error code “P8”will be displayed on the remote controller and the trouble position will be shown on the outdoor controller
board LED. See electric wiring diagram of the outdoor unit for details.)
(2)Make sure that there is no trouble with the indoor fan.
Emergency operation will be continuous operation mode due to power ON/OFF (ON/OFF with the remote controller is not possible).
[Emergency operation procedure]
(1)Set the dip switch (SW3<I.B>) on the indoor controller board to
(2)Turn on outdoor unit side circuit breaker, then indoor unit side circuit breaker.
(3)During emergency operation indoor fan runs at high speed but automatic vane remains stop.
(4)Thermostat will mot function. Cold air blows out for defrosting during heating thus do not operate defrosting for along time.
(5)Emergency cooling should be limited to 10 hours maximum.
(The indoor unit heat exchanger may freeze).
(6)After every operation, set all dip switches (SW3<I.B>) to OFF.
1 on and 2 off for cooling and 1 - 2 on for heating.
19
PKH-2.5FKHA2 , PKH-3FKHA2 , PKH-4FKHSA2
J9
2
CN2
OFF
ON
4321
SW18
87
N
L
LED1 12V
POWER
X4
C
MF
L
N
GRN/YLW
SW7
CN51
CENTRALLY
CONTROL
LED2 5V
POWER
I.B
3
YLW
BRN
GRY
GRY
16
26H
1 2
88H
HEATER
CN24
65
GRN/YLW
BLU
RED
TB2
FS2
H
RED RED
BLU
1
2
53
88H
FS1
ON
OFF
TRANSMISSION WIRES
DC12V
1
2
TB6
A01 B02
OFF
ON
R.B
45 23 1
CN1
3 2 1
87654321
SW17
HEATER
CN24
REMOCON
POWER
CN40
4 2 13
J5
42
SW2
ON
OFF
123456
SW6
1234
109654
J1
1234
SW7 SW3
ON
OFF
12
TO
REMOCON
CN22
12
OFF
ON
1234 1234
PKH-4
PKH-2.5,3
MODELS
RT2
2
CN27
D.U.M
I.B
TO OUTDOOR UNIT
CONNECTING WIRES
DC12V
1
T
ZNR
F2 F1
MV
12345
1
6
1
1
43
2
35
3
21 1 13 3
FAN1
POWER
OUTDOOR
TRANS
VANE
LOSSNAY
TRANS
CND
CN30
CN6V
CN4T
CN2L
CNT
DRAIN
CN50
INTAKE
CN20
PIPE
CN21
1 12 2
RT1
POWER SUPPLY
~(1 PHASE)
AC220-240V 50Hz
AC220V 60Hz
WHT
BLK
RED
TB2
POWER SUPPLY
~(1 PHASE)
AC220-240V 50Hz
AC220V 60Hz
BRN
TB5
BLU
BLU
TB4
6
ORN
YLW
BRN
BRN
RED
RED
220V
14.3VAC
10VAC
230V
240V
BLU
YLW
WHT
RED
YLW
ORN
RED
X4
SYMBOL
C
CN1 <R.B>
CN2 <R.B>
CN2L <I.B>
CN27 <I.B>
CN51 <I.B>
F1.2 <I.B>
FS1.2
H
I.B
J1
J5
J9
LED1 <I.B>
LED2 <I.B>
MF
MV
R.B
NAME
FAN MOTOR CAPACITOR
PROGRAM TIMER CONNECTOR
REMOTE SWITCH CONNECTOR
LOSSNAY CONNECTOR
DRAIN LIFT-UP MECHANISM CONNECTOR
CENTRALLY CONTROL CONNECTOR
FUSE (6.3A 250V)
THERMAL FUSE <117:/PKH-2.5,3:10A PKH-4:16A>
HEATER
INDOOR CONTROLLER BOARD
MODE SELECTOR JUMPER RESISTORS
MODE SELECTOR JUMPER RESISTORS
MODE SELECTOR JUMPER RESISTORS
DC 12V POWER LED
DC 5V POWER LED
FAN MOTOR
VANE MOTOR
REMOTE CONTROLLER BOARD
SYMBOL
RT1
RT2
SW2 <I.B>
SW3 <I.B>
SW6 <I.B>
SW7 <I.B>
SW17 <R.B>
SW18 <R.B>
T
TB2
TB4
TB5.6
✕4 <I.B>
ZNR
26H
88H
NAME
ROOM TEMPERATURE THERMISTOR
(0:/15".25:/5.4"DETECT)
PIPE TEMPERATURE THERMISTOR
(0:/15".25:/5.4"DETECT)
ADDRESS SELECTOR
EMERGENCY OPERATION SWITCH
MODEL SELECTOR
MODEL SELECTOR
ADDRESS SELECTOR
FUNCTION SELECTOR
TRANSFORMER
POWER SUPPLY TERMINAL BLOCK
INDOOR/OUTDOOR CONNECTING WIRE TERMINAL BLOCK
REMOTE CONTROLLER TRANSMISSION LINE
TERMINAL BLOCK
FAN MOTOR RELAY
VARISTOR
HEATER THERMAL SWITCH
HEATER CONTACTOR
PKH-2.5FKHA3 , PKH-3FKHA3 , PKH-4FKHSA3
NOTES:
1. Since the indoor fan motor (MF) is connected with 230, 240V power, using 220V power will require a setting change of the dip switch (SW7<I.B>) on the indoor
controller board as shown in fig :
fig w1
Indoor fan motor (MF) for 220V.
2. Since the indoor transformer (T) is connected with 240V power, if 220,230V power is used. Change the wiring connection showing fig :
fig w2
When power supply is
3. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
4. Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers.
5. Symbols used in wiring diagram above are, : Connector, / : Terminal block.
6. Emergency operation
If remote controller of microcomputer fails but there is no other trouble, emergency operation is possible by setting dip switch (SW3<I.B>) on the indoor controller board.
[Check items]
(1) Make sure that no other trouble exist the outdoor unit. Trouble with the outdoor unit prevents emergency operation.
(If any trouble exists the outdoor unit error code “P8” will be displayed on the remote controller and the trouble position will be shown on the outdoor controller
board LED. See electric wiring diagram of the outdoor unit for details.)
(2)Make sure that there is no trouble with the indoor fan.
Emergency operation will be continuous operation mode due to power ON/OFF(ON/OFF with the remote controller is not possible).
[Emergency operation procedure]
(1)Set the dip switch (SW3<I.B>) on the indoor controller board to 1 on and 2 off for cooling and 1 - 2 on for heating.
(2)Turn on outdoor unit side circuit breaker, then indoor unit side circuit breaker.
(3)During emergency operation indoor fan runs at high speed but automatic vane remains stop.
(4)Thermostat will not function. Cold air blows out for defrosting during heating thus do not operate defrosting for along time.
(5)Emergency cooling should be limited to 10 hours maximum.
(The indoor unit heat exchanger may freeze).
(6)After every operation, set all dip switches (SW3<I.B>) to OFF.
w 1.
230V
220V
SW7
ON
OFF
240V
230V
220V
2 3 4
1
YELLOW
ORANGE
RED
ON
OFF
2 3 4
1
20
w 2.
7
Indoor
heat
exchanger
Indoor unit
Refrigerant pipe
(option)
19.15mm( 3/4")
(with heat insulator)
Refrigerant pipe
(option)
9.52mm( 3/8")
(with heat insulator)
Flexible tube
Flared
connection
Ball valve
Strainer
Ball valve
(with Service port)
Oil separator
4-way valve
Service
port
(check)
Service
port
High pressure
control switch
Accumulator
Compressor
Strainer
Restrictor
valve
Outdoor heat exchanger
Outdoor coil
thermistor
(TH3)
Pipe
temperature
thermistor
(RT2)
Distributor
with
strainer
Capillary
tube
Capillary
tube
Restrictor
valve
Strainer
Bypass
valve
Outdoor unit
PKH-4 (O.D.4.0 I.D.2.0 L400)
PUH-4 (O.D.3.2 I.D.2.0 L820) 2pcs
Refrigerant flow in cooling
Refrigerant flow in heating
R.V. coil
Heating:ON
Cooling:OFF
REFRIGERANT SYSTEM DIAGRAM
PKH-1.6FKHA3 / PUH-1.6VKA2 , PUH-1.6VKA3
PKH-2FKHA3 / PUH-2VKA2 , PUH-2VKA3
PKH-2.5FKHA2 , PKH-2.5FKHA3 / PUH-2.5VKA2 , PUH-2.5VKA3
PKH-3FKHA2 , PKH-3FKHA3 / PUH-3VKA2 , PUH-3VKA3
/ PUH-3YKA2 , PUH-3YKA3 , PUH-3YKA4
Oil separator
4-way valve
Service
port
Compressor
PUH-1.6 (O.D.3.2 I.D.1.8 L400)
PUH-2 (O.D.4.0 I.D.2.0 L430)
PUH-2.5 (O.D.4.0 I.D.2.4 L1550)
PUH-3 (O.D.4.0 I.D.2.4 L1070)
Indoor unit
Indoor
heat
exchanger
Pipe
temperature
thermistor
(RT2)
Distributor
with
strainer
PKH-1.6 (O.D.3.2 I.D.1.6 L700)
PKH-2 (O.D.3.2 I.D.1.6 L300)
Restrictor
valve
Capillary
tube
Refrigerant pipe
(option)
15.88mm( 5/8")
(with heat insulator)
Flexible tube
Strainer
Flared
connection
Refrigerant pipe
(option)
9.52mm( 3/8")
(with heat insulator)
PKH-2.5 (O.D.3.2 I.D.1.8 L430)
PKH-3 (O.D.4.0 I.D.2.0 L500)
Ball valve
Strainer
Service
port
Accumulator
Ball valve
(with Service port)
High pressure
control switch
Outdoor unit
Outdoor heat exchanger
Bypass
valve
Restrictor
valve
Strainer
Unit : mm
Outdoor coil
thermistor
(TH)
Capillary
tube
PKH-4FKHSA2 , PKH-4FKHSA3 / PUH-4YKSA3 , PUH-4YKSA4
21
8
OPERATION FLOW-CHART
MAIN OPERATION
START
1
Power circuit
breaker
YES
YES
Check SW
ON twice
NO
Operation SW
ON
NO
“OFF” timer
NO
NO
“ON” timer
YES
Set time
complete
NO NO
STOP
PROTECTION DEVICE
SELF HOLD RELEASE
Remote controller
indicator lamp OFF
Indoor side
Fan STOP
Auxiliary heater OFF
NO
YES
YES
YES
w1
w4
Set time
complete
YES
NO
w2
Trouble
YES
Trouble STOP
PROTECTION DEVICE
SELF HOLD
Remote controller
trouble display
Remote controller
operation display
w3
w6
Operating mode
(COOL)
Operating mode
(DRY)
Operating mode
(HEAT)
Operating mode
(FAN)
Auto COOL/HEAT
operation
YES
NO
YES
NO
YES
NO
YES
NO
COOL operation
DRY operation
HEAT operation
FAN operation
w7
Outdoor side
Compressor OFF
Fan STOP
Four-way valve OFF
w5
w 1 In addition, the centralized and remote control can be operated.
w 2 The modes which indicate the sources of trouble are listed below.
● EO=Signal transmitting/receiving error
● P1=Room temperature thermistor malfunction
● P2=Indoor coil thermistor malfunction
● P4=Drain sensor malfunction
● P5=Drain over flow
● P6=Coil frost/overheat protection
● P7=System error
● P8=Outdoor unit trouble
w 3 The CHECK switch will show if an error has occurred in the past.
w 4 Fan runs on low speed for 1 minute in order to remove overheat air.
w 5 The 3-minute (6 minutes … heating mode) time-delay functions after compressor stops.
w 6 FAN or AUTO mode is selected by the indoor dip switch setting.
w 7 In FAN mode, fan speed and vane operation depend on the remote controller setting. (Compressor is OFF.)
22
COOLING OPERATION
COOL operation
Four-way valve/OFF
NO
NO
NO
Vane setting notch
Initial
COOLING
w8
60 deg downward angle
70 deg downward angle
NO
Vane horizontal
w9
Vane initial
setting
Vane
Fan speed
LOW
Downward
discharge
1 hour
airflow
Compressor
thermostat
ON
Allowance
cancel
NO
YES
YES
YES
YES
NO
NO
YES
YES
NO
w11
YES
3-minute
time delay
6-minute
time delay
3-minute
compressor
operation
w10
Coil frost
prevention
Cooling area
NO
NO
YES
NO
YES
NO
Allowance
period
NO
6 minute
time delay
Allowance set
YES
Coil frost protection
YES
10-minute
NO
compressor
Allowance cancel
NO
compressor
temperature is
Compressor ON
operation
YES
Coil frost
protection
NO
16-minute
operation
YES
Indoor pipe
1°C or lower
NO
1
YES
YES
Coil frost
prevention
Compressor OFF
Indoor coil
temperature is
10°C or higher
YES
3-minute
time delay
Coil frost
prevention release
NO
NO
1 min continue
FAN speed
FAN speed
LOW 5 min.
LOW
elapse
YES
NO
YES
Outdoor unit
trouble
w 8 When operation stops or changes to cooling or dry mode, the auto vane turns to a horizontal angle. IF operation changes
during auto vane SWING, the auto vane will continue to swing.
w 9 When operating TEST RUN, the thermostat will be continuously ON.
w10 After 3 minute compressor operation, if the indoor coil thermistor reads -15°C or below for 3 minutes, the compressor will
stop for 6 minutes.
w11 Cooling area : Indoor coil temperature is more than 5 degrees above the room temperature.
Heating area : Indoor coil temperature is more than 5 degrees below the room temperature.
FAN area : Indoor coil temperature is within 5 degrees either way of the room temperature.
23
HEATING OPERATION
Heat operation
Initial
HEATING
YES
NO
Defrosting
NO
Hot adjust
in process
NO
NO
Compressor
thermostat ON
Indoor piping
YES
trouble
1
w15
2
YES
YES
YES
YES
YES
NO
Compressor ON
3 min. restart
prevention
6 min. restart
prevention
Hot adjust start
FAN SPEED
Very low
Vane setting notch
NO
Vane initial setting
Four-way valve ON
Compressor ON
w9
Allowance cancel
NO
-15°C or lower
Outdoor unit
FAN SPEED
Very low airflow
Compressor OFF
NO
10-minute
compressor
operation
Allowance cancel
w11
Heating
FAN STOP
w11
Airflow area
20 min. elapse
YES
Airflow area
Heating area
w11
Airflow area
Cooling area
Defrost operation
START
Four-way valve
area
OFF
YES
NO
YES
w10
YES
YES
NO
w11
Heating area
Defrost
30 min. elapse
Outdoor unit
trouble
1
A
Outdoor unit
trouble
NO
YES
YES
NO
NO
Auxiliary heater
NO
Auxiliary heater
Overheat remote
NO
Overload protect
Defrost release
2
B
Indoor piping
55°C or lower
NO
ON
YES
Indoor piping
60°C or higher
YES
OFF
START
Indoor unit
70°C or higher
YES
Allowance
period
YES
YES
NO
Auxiliary heater
Auxiliary heater
NO
6-minute restart
Allowance set
Compressor OFF
thermostat ON
YES
ON
prevention
YES
Indoor piping
35°C or higher
HOT adjust
6 min. elapse
FAN SPEED Low
FAN SPEED
Low 2 min.
FAN SPEED
setting notch
Hot adjust
release
elapse
Auxiliary heater
Indoor coil
thermistor is 60°C
FAN speed
Low notch
Airflow 10% up
NO
NO
YES
NO
YES
A
PKH-FK
Type
3-minute
OFF
or higher
B
NO
NO
NO
NO
YES
FAN setting notch
Auto COOL/HEAT
operation
Initial mode
YES
>
1 T0
T
=
COOL mode
1 { (T0 - 2)
T
YES
After 15min.
T
1 { (T0-2)
NO
w16
NO
YES
NO
YES
NO
w17
COOL mode HEAT mode
NO
COOL operation HEAT operation
NO
T1 ] (T0 + 2)
YES
After 15min.
T1 ] (T0 + 2)
HEAT operation
1 1
YES
NO
Cool mode set
1
w15 (!) Until Low airflow is set while hot adjustment
(@) While defrosting (FAN STOP)
(#) When thermostat is OFF
In the case of(!), (@) and (#) above, airflow is horizontal regardless the VANE setting.
w16 When AUTO operation is started, COOL or HEAT mode is selected automatically.
w17 T1 : Room temperature.
To : Set temperature
24
DRY OPERATION
DRY
operation
Four-way valve / OFF
Vane
setting notch
NO
YES
NO
Initial dry
operation
YES
Vane initial setting
w
Room temperature is
18°C or lower
NO
During
compressor ON
YES
3-minute
compressor
operation
YES
Compressor &
thermostat ON
YES
w
8
12
NO
NO
w
9
YES
3-minute
time delay
NO
Compressor &
thermostat
ON
NO
YES
w
9
Compressor ON
time completes
YES
10-minute compressor
OFF timer start
Compressor OFF
Fan STOP
1
w 8 ~ 9 Refer to page 23.
w 12 When room temperature is 18°C or below, the compressor cannot operate.
When room temperature rises over 18°C, the compressor starts after a 3-minute time delay.
w 13 Compressor ON time is decided by room temperature. Refer to page 32.
w 14 In dry operation, compressor ON makes the fan speed LOW and compressor OFF stops the fan.
It is not possible to set the fan speed with the remote controller
NO
W
14
10-minute
compressor
OFF
YES
Compressor ON
time set
Compressor ON
Fan speed LOW
NO
w
13
W
14
25
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