Mitsubishi PKH-1.6GKL, PKH-1.6GKLH, PKH-2GKL, PKH-2GKLH Service Manual
SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS
ON/OFF
TECHNICAL & SERVICE MANUAL
2000
No.OC229
Series PKH
Wall Mounted
Indoor unit
[ Model names ] [ Service Ref. ]
PKH-1.6GKL PKH-1.6GKL
PKH-1.6GKLH PKH-1.6GKLH
PKH-2GKL PKH-2GKL
PKH-2GKLH PKH-2GKLH
CONTENTS
1. PART NAMES AND FUNCTIONS ·······················2
2. SPECIFICATIONS················································4
3. DATA·····································································6
4. OUTLINES AND DIMENSIONS·························14
Indoor unit
5. WIRING DIAGRAM ············································15
6.
7. OPERATION FLOW-CHART ·····························17
8. MICROPROCESSOR CONTROL······················21
9. TROUBLESHOOTING ·······································41
10. SYSTEM CONTROL ··········································51
11. DISASSEMBLY PROCEDURE···························56
12. PARTS LIST ·······················································60
13. OPTIONAL PARTS·············································63
This manual does not cover
the following outdoor units.
When servicing them, please
refer to the service manual
No.OC128 REVISED EDITION-A and this manual in a
set.
[Service Ref.]
PUH-1.6VKA
PUH-2VKA2
REFRIGERANT SYSTEM DIAGRAM
2
······················16
Remote controller
1 PART NAMES AND FUNCTIONS
● Indoor Unit
Air intake
Guide vane
Filter
Air outlet
Air intake grille
Auto vane
2
●Wireless remote controller
● When cover is open.
display
Lights up while transmission to the indoor unit
is mode using switches.
display
OPERATION MODE display
Operation mode display indicates which operation mode is in effect.
• FUNCTION
Lights up when function are set..
display
• TEST RUN • CHECK display
CHECK&TEST RUN display indicates that the
unit is being checked or test-run.
display
Displays when batteries are dead.
display
The vertical direction of airflow is indicated.
display
FAN SPEED display indicates which fan
speed has been selected.
ADDRESS display
Displays the refrigerant address.
UNIT NO. display
Displays the number of unit..
FUNCTION NO. display
Displays the mode.
SELECTION NO. display
Displays the selection number..
ADDRESS
UNIT No.
FUNCTION No.
SELECTION No.
FUNCTION
TEST RUN
CHECK
ON/OFF
MODE FAN
RESET
VANE
AM
PM
AM
PM
TEMP.
˚C
START
STOP
HR.
MIN.
display
SET TEMP. display indicates desired temperature set.
CLOCK display
DIsplays the current time.
“ ”display
Flashes when the current time is displayed.
TIMER display
Displays when in timer operation or when setting timer.
➡
“ ” “ ” display
➡
Displays the order of timer operation.
“ ” “ ” display
Displays whether timer is on or off.
▼
“ ” “ ” display
Displays when the current time and the timer
time can be changed.
▼
TEMP. button
display
The unit is turned ON and OFF alternately
each time the button is pressed.
● When cover is open.
MODE SELECT button
Used to switch the operation mode between
cooling , drying , blowing , heating and auto
mode.
FAN SPEED SELECT button
Used to change the fan speed.
VANE CONTROL button
Used to change the airflow direction.
ON/OFF
MODE FAN
RESET
VANE
TEMP.
START
STOP
HR.
MIN.
SET TEMPERATURE button sets any desired
room temperature.
TIMER CONTROL buttons
STOP (OFF timer): when this switch is set,
the air conditioner will be automatically
stopped at the preset time.
START(ON timer): when this switch is set, the
air conditioner will be automatically started at
the preset time.
HR. and MIN.buttons
Buttons used to set the “hour and minute” of
the current time and timer settings.
button
RESET button
3
2
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
Operation control & Thermostat
Noise level(Low-High)
Unit drain pipe O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
Input
Running current
Starting 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
Oil<Model>
Pipe size O.D.
Connection method
Between the indoor & outdoor unit
Service Ref.
W
D
H
W
D
H
Liquid A(in.)
Gas A(in.)
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)
kW
A
A
kW
kW
m
3
/X<CFM>
>
A(in.)
A(in.)
A(in.)
kg(lbs)
kg(lbs)
L
PKH-1.6GKL
PKH-1.6GKLH
Cooling
4,500
15,350
1.51
0.07
0.33
0.40
1.44
6.74
Heating
4,650 (5,450)
15,900 (18,600)
1.48 (2.28)
0.07 (0.87)
0.33 (3.66)
0.40 (3.73)
1.41
6.60
PKH-1.6GKL
PKH-1.6GKLH
Single, 50Hz, 220-240V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Line flow(direct) ✕ 1
0.030
9-12 (318-424)
0(direct blow)
(0.8)
Remote controller & built-in
36-43
20(13/16)
990 (39)
235 (9-1/4)
340 (13-3/8)
16(35) (17(37))
PUH-1.6VKA
2
Single, 50Hz, 220-240V
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)
0.57<MS-56>
9.52(3/8)
15.88(5/8)
Flared
Flared
Max. 40m
Max. 40m
2.
Guaranteed operating range
Cooling
Heating
Upper limit
Lower limit
Upper limit
Lower limit
Indoor
D.B. 35:, W.B. 22.5:
D.B. 21:, W.B. 15.5:
D.B. 27:
D.B. 20:
Outdoor
D.B. 46:
D.B. -5:
D.B. 21:, W.B. 15.5:
D.B. -8.5:, W.B. -9.5:
SPECIFICATIONS
Note1. 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)
4
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
INDOOR UNITOUTDOOR UNIT
Booster heater
Operation control & Thermostat
Noise level(Low-High)
Unit drain pipe O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
Input
Running current
Starting 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
Oil<Model>
Pipe size O.D.
Connection method
Between the indoor & outdoor unit
REFRIGERANT PIPING
Note1. 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)
Liquid A(in.)
Gas A(in.)
Indoor side
Outdoor side
Height difference
Piping length
W
W
Service Ref.
W
Btu/h
kW
Cooling
5,500
18,800
2.27
PKH-2GKL
PKH-2GKLH
Heating
6,250 (7,050)
21,300 (24,100)
2.29 (3.09)
PKH-2GKL
PKH-2GKLH
Single, 50Hz, 220-240V
kW
A
A
0.07
0.33
0.40
0.07 (0.87)
0.33 (3.66)
0.40 (3.73)
Munsell 0.70Y 8.59/0.97
Plate fin coil
Line flow(direct) ✕ 1
kW
3
/X<CFM>
m
Pa(mmAq)
kW
0.030
9-12 (318-424)
0(direct blow)
(0.8)
Remote controller & built-in
>
A(in.)
A(in.)
D
H
A(in.)
A(in.)
kg(lbs)
36-43
20(13/16)
990 (39)
235 (9-1/4)
340 (13-3/8)
16(35) (17(37))
PUH-2VKA
2
Single, 50Hz, 220-240V
kW
A
A
2.20
9.86
45
2.22
9.95
Munsell 5Y 7/1
Capillary tube
Hermetic
NH38VMD
kW
1.7
Line start
Internal thermostat, HP switch
Plate fin coil
Propeller (direct) ✕ 1
kW
3
/X<CFM>
m
0.065
45(1,590)
Reverse cycle
>
A(in.)
D
H
A(in.)
A(in.)
295+24(11-5/8 add 1)
kg(lbs)
49
870(34-1/4)
650(25-5/8)
64(141)
R-22
kg(lbs)
L
2.2(4.9)
1.2<MS-32>
9.52(3/8)
15.88(5/8)
Flared
Flared
Max. 40m
Max. 40m
Guaranteed operating range
2.
Cooling
Heating
Upper limit
Lower limit
Upper limit
Lower limit
Indoor
D.B. 35:, W.B. 22.5:
D.B. 21:, W.B. 15.5:
D.B. 27:
D.B. 20:
Outdoor
D.B. 46:
D.B. -5:
D.B. 21:, W.B. 15.5:
D.B. -8.5:, W.B. -9.5:
5
3 DATA
Outdoor intake air D.B.(°C)
20 25 30
Indoor
Intake air
D.B.(°C)
Indoor
Intake air
W.B.(°C)
20
20
20
22
22
22
24
24
24
24
26
26
26
26
27
27
27
27
28
28
28
28
30
30
30
30
32
32
32
32
16
18
20
16
18
20
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
CA
4540
4834
5131
4540
4834
5131
4540
4834
5131
5431
4540
4834
5131
5431
4540
4834
5131
5431
4540
4834
5131
5431
4540
4834
5131
5431
4540
4834
5131
5431
SHC(W)
2996
2610
2155
3359
2997
2565
3723
3384
2976
2498
4086
3770
3386
2933
4267
3964
3592
3150
4449
4157
3797
3367
4540
4544
4207
3802
4540
4834
4618
4236
SHF
0.66
0.54
0.42
0.74
0.62
0.50
0.82
0.70
0.58
0.46
0.90
0.78
0.66
0.54
0.94
0.82
0.70
0.58
0.98
0.86
0.74
0.62
1.00
0.94
0.82
0.70
1.00
1.00
0.90
0.78
P.C.
1.21
1.23
1.26
1.21
1.23
1.26
1.21
1.23
1.26
1.28
1.21
1.23
1.26
1.28
1.21
1.23
1.26
1.28
1.21
1.23
1.26
1.28
1.21
1.23
1.26
1.28
1.21
1.23
1.26
1.28
CA
4415
4706
5010
4415
4706
5010
4415
4706
5010
5327
4415
4706
5010
5327
4415
4706
5010
5327
4415
4706
5010
5327
4415
4706
5010
5327
4415
4706
5010
5327
SHC(W)
2914
2541
2104
3267
2918
2505
3621
3294
2906
2450
3974
3671
3307
2877
4151
3859
3507
3090
4327
4047
3708
3303
4415
4424
4108
3729
4415
4706
4509
4155
SHF
0.66
0.54
0.42
0.74
0.62
0.50
0.82
0.70
0.58
0.46
0.90
0.78
0.66
0.54
0.94
0.82
0.70
0.58
0.98
0.86
0.74
0.62
1.00
0.94
0.82
0.70
1.00
1.00
0.90
0.78
P.C.
1.26
1.29
1.31
1.26
1.29
1.31
1.26
1.29
1.31
1.34
1.26
1.29
1.31
1.34
1.26
1.29
1.31
1.34
1.26
1.29
1.31
1.34
1.26
1.29
1.31
1.34
1.26
1.29
1.31
1.34
CA
4253
4535
4831
4253
4535
4831
4253
4535
4831
5142
4253
4535
4831
5142
4253
4535
4831
5142
4253
4535
4831
5142
4253
4535
4831
5142
4253
4535
4831
5142
SHC(W)
2807
2449
2029
3147
2812
2416
3488
3174
2802
2365
3828
3537
3189
2777
3998
3719
3382
2983
4168
3900
3575
3188
4253
4263
3962
3600
4253
4535
4348
4011
SHF
0.66
0.54
0.42
0.74
0.62
0.50
0.82
0.70
0.58
0.46
0.90
0.78
0.66
0.54
0.94
0.82
0.70
0.58
0.98
0.86
0.74
0.62
1.00
0.94
0.82
0.70
1.00
1.00
0.90
0.78
P.C.
1.36
1.39
1.42
1.36
1.39
1.42
1.36
1.39
1.42
1.45
1.36
1.39
1.42
1.45
1.36
1.39
1.42
1.45
1.36
1.39
1.42
1.45
1.36
1.39
1.42
1.45
1.36
1.39
1.42
1.45
1. PERFORMANCE DATA
1) COOLING CAPACITY<1>
PKH-1.6GKL
PKH-1.6GKLH
CA : Capacity (W) SHC(W) : Sensible heat capacity
P.C. : Power consumption (kW) SHF : Sensible heat factor
6
COOLING CAPACITY<2>
Outdoor intake air D.B.(°C)
35 40 45
Indoor
Intake air
D.B.(°C)
Indoor
Intake air
W.B.(°C)
20
20
20
22
22
22
24
24
24
24
26
26
26
26
27
27
27
27
28
28
28
28
30
30
30
30
32
32
32
32
16
18
20
16
18
20
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
CA
4081
4355
4645
4081
4355
4645
4081
4355
4645
4950
4081
4355
4645
4950
4081
4355
4645
4950
4081
4355
4645
4950
4081
4355
4645
4950
4081
4355
4645
4950
SHC(W)
2693
2352
1951
3020
2700
2322
3346
3049
2694
2277
3673
3397
3066
2673
3836
3571
3251
2871
3999
3745
3437
3069
4081
4094
3809
3465
4081
4355
4180
3861
SHF
0.66
0.54
0.42
0.74
0.62
0.50
0.82
0.70
0.58
0.46
0.90
0.78
0.66
0.54
0.94
0.82
0.70
0.58
0.98
0.86
0.74
0.62
1.00
0.94
0.82
0.70
1.00
1.00
0.90
0.78
P.C.
1.46
1.49
1.53
1.46
1.49
1.53
1.46
1.49
1.53
1.56
1.46
1.49
1.53
1.56
1.46
1.49
1.53
1.56
1.46
1.49
1.53
1.56
1.46
1.49
1.53
1.56
1.46
1.49
1.53
1.56
CA
3899
4167
4451
3899
4167
4451
3899
4167
4451
4750
3899
4167
4451
4750
3899
4167
4451
4750
3899
4167
4451
4750
3899
4167
4451
4750
3899
4167
4451
4750
SHC(W)
2573
2250
1869
2885
2583
2225
3197
2917
2581
2185
3509
3250
2937
2565
3665
3417
3116
2755
3821
3583
3294
2945
3899
3917
3650
3325
3899
4167
4006
3705
SHF
0.66
0.54
0.42
0.74
0.62
0.50
0.82
0.70
0.58
0.46
0.90
0.78
0.66
0.54
0.94
0.82
0.70
0.58
0.98
0.86
0.74
0.62
1.00
0.94
0.82
0.70
1.00
1.00
0.90
0.78
P.C.
1.55
1.59
1.64
1.55
1.59
1.64
1.55
1.59
1.64
1.68
1.55
1.59
1.64
1.68
1.55
1.59
1.64
1.68
1.55
1.59
1.64
1.68
1.55
1.59
1.64
1.68
1.55
1.59
1.64
1.68
CA
3706
3970
4249
3706
3970
4249
3706
3970
4249
4543
3706
3970
4249
4543
3706
3970
4249
4543
3706
3970
4249
4543
3706
3970
4249
4543
3706
3970
4249
4543
SHC(W)
2446
2144
1785
2743
2461
2124
3039
2779
2464
2090
3335
3097
2804
2453
3484
3255
2974
2635
3632
3414
3144
2817
3706
3732
3484
3180
3706
3970
3824
3543
SHF
0.66
0.54
0.42
0.74
0.62
0.50
0.82
0.70
0.58
0.46
0.90
0.78
0.66
0.54
0.94
0.82
0.70
0.58
0.98
0.86
0.74
0.62
1.00
0.94
0.82
0.70
1.00
1.00
0.90
0.78
P.C.
1.65
1.70
1.75
1.65
1.70
1.75
1.65
1.70
1.75
1.81
1.65
1.70
1.75
1.81
1.65
1.70
1.75
1.81
1.65
1.70
1.75
1.81
1.65
1.70
1.75
1.81
1.65
1.70
1.75
1.81
PKH-1.6GKL
PKH-1.6GKLH
CA : Capacity (W) SHC(W) : Sensible heat capacity
P.C. : Power consumption (kW) SHF : Sensible heat factor
7
COOLING CAPACITY<3>
Outdoor intake air D.B.(°C)
20 25 30
Indoor
Intake air
D.B.(°C)
Indoor
Intake air
W.B.(°C)
20
20
20
22
22
22
24
24
24
24
26
26
26
26
27
27
27
27
28
28
28
28
30
30
30
30
32
32
32
32
16
18
20
16
18
20
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
CA
5549
5908
6271
5549
5908
6271
5549
5908
6271
6638
5549
5908
6271
6638
5549
5908
6271
6638
5549
5908
6271
6638
5549
5908
6271
6638
5549
5908
6271
6638
SHC(W)
3274
2777
2195
3718
3249
2696
4161
3722
3198
2589
4605
4195
3700
3120
4827
4431
3951
3385
5049
4667
4202
3651
5493
5140
4703
4182
5549
5612
5205
4713
SHF
0.59
0.47
0.35
0.67
0.55
0.43
0.75
0.63
0.51
0.39
0.83
0.71
0.59
0.47
0.87
0.75
0.63
0.51
0.91
0.79
0.67
0.55
0.99
0.87
0.75
0.63
1.00
0.95
0.83
0.71
SHF
0.59
0.47
0.35
0.67
0.55
0.43
0.75
0.63
0.51
0.39
0.83
0.71
0.59
0.47
0.87
0.75
0.63
0.51
0.91
0.79
0.67
0.55
0.99
0.87
0.75
0.63
1.00
0.95
0.83
0.71
SHF
0.59
0.47
0.35
0.67
0.55
0.43
0.75
0.63
0.51
0.39
0.83
0.71
0.59
0.47
0.87
0.75
0.63
0.51
0.91
0.79
0.67
0.55
0.99
0.87
0.75
0.63
1.00
0.95
0.83
0.71
P.C.
1.82
1.86
1.89
1.82
1.86
1.89
1.82
1.86
1.89
1.93
1.82
1.86
1.89
1.93
1.82
1.86
1.89
1.93
1.82
1.86
1.89
1.93
1.82
1.86
1.89
1.93
1.82
1.86
1.89
1.93
CA
5397
5752
6124
5397
5752
6124
5397
5752
6124
6511
5397
5752
6124
6511
5397
5752
6124
6511
5397
5752
6124
6511
5397
5752
6124
6511
5397
5752
6124
6511
SHC(W)
3184
2704
2143
3616
3164
2633
4048
3624
3123
2539
4479
4084
3613
3060
4695
4314
3858
3320
4911
4544
4103
3581
5343
5004
4593
4102
5397
5465
5083
4623
P.C.
1.90
1.94
1.97
1.90
1.94
1.97
1.90
1.94
1.97
2.01
1.90
1.94
1.97
2.01
1.90
1.94
1.97
2.01
1.90
1.94
1.97
2.01
1.90
1.94
1.97
2.01
1.90
1.94
1.97
2.01
CA
5198
5543
5905
5198
5543
5905
5198
5543
5905
6285
5198
5543
5905
6285
5198
5543
5905
6285
5198
5543
5905
6285
5198
5543
5905
6285
5198
5543
5905
6285
SHC(W)
3067
2605
2067
3483
3049
2539
3899
3492
3012
2451
4315
3935
3484
2954
4523
4157
3720
3205
4731
4379
3956
3457
5146
4822
4429
3960
5198
5266
4901
4462
P.C.
2.04
2.09
2.13
2.04
2.09
2.13
2.04
2.09
2.13
2.18
2.04
2.09
2.13
2.18
2.04
2.09
2.13
2.18
2.04
2.09
2.13
2.18
2.04
2.09
2.13
2.18
2.04
2.09
2.13
2.18
PKH-2GKL
PKH-2GKLH
CA : Capacity (W) SHC(W) : Sensible heat capacity
P.C. : Power consumption (kW) SHF : Sensible heat factor
8
COOLING CAPACITY<4>
Outdoor intake air D.B.(°C)
35 40 45
Indoor
Intake air
D.B.(°C)
Indoor
Intake air
W.B.(°C)
20
20
20
22
22
22
24
24
24
24
26
26
26
26
27
27
27
27
28
28
28
28
30
30
30
30
32
32
32
32
16
18
20
16
18
20
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
CA
4988
5323
5677
4988
5323
5677
4988
5323
5677
6050
4988
5323
5677
6050
4988
5323
5677
6050
4988
5323
5677
6050
4988
5323
5677
6050
4988
5323
5677
6050
SHC(W)
2943
2502
1987
3342
2928
2411
3741
3353
2895
2360
4140
3779
3349
2844
4339
3992
3577
3086
4539
4205
3804
3328
4938
4631
4258
3812
4988
5057
4712
4296
P.C.
2.19
2.24
2.30
2.19
2.24
2.30
2.19
2.24
2.30
2.35
2.19
2.24
2.30
2.35
2.19
2.24
2.30
2.35
2.19
2.24
2.30
2.35
2.19
2.24
2.30
2.35
2.19
2.24
2.30
2.35
CA
4765
5093
5440
4765
5093
5440
4765
5093
5440
5806
4765
5093
5440
5806
4765
5093
5440
5806
4765
5093
5440
5806
4765
5093
5440
5806
4765
5093
5440
5806
SHC(W)
2811
2394
1904
3192
2801
2339
3574
3208
2774
2264
3955
3616
3209
2729
4145
3820
3427
2961
4336
4023
3645
3193
4717
4431
4080
3658
4765
4838
4515
4122
P.C.
2.34
2.40
2.46
2.34
2.40
2.46
2.34
2.40
2.46
2.53
2.34
2.40
2.46
2.53
2.34
2.40
2.46
2.53
2.34
2.40
2.46
2.53
2.34
2.40
2.46
2.53
2.34
2.40
2.46
2.53
CA
4530
4852
5193
4530
4852
5193
4530
4852
5193
5552
4530
4852
5193
5552
4530
4852
5193
5552
4530
4852
5193
5552
4530
4852
5193
5552
4530
4852
5193
5552
SHC(W)
2673
2281
1818
3035
2669
2233
3397
3057
2648
2165
3760
3445
3064
2610
3941
3639
3272
2832
4122
3833
3479
3054
4484
4221
3895
3498
4530
4610
4310
3942
P.C.
2.49
2.55
2.63
2.49
2.55
2.63
2.49
2.55
2.63
2.71
2.49
2.55
2.63
2.71
2.49
2.55
2.63
2.71
2.49
2.55
2.63
2.71
2.49
2.55
2.63
2.71
2.49
2.55
2.63
2.71
SHF
0.59
0.47
0.35
0.67
0.55
0.43
0.75
0.63
0.51
0.39
0.83
0.71
0.59
0.47
0.87
0.75
0.63
0.51
0.91
0.79
0.67
0.55
0.99
0.87
0.75
0.63
1.00
0.95
0.83
0.71
SHF
0.59
0.47
0.35
0.67
0.55
0.43
0.75
0.63
0.51
0.39
0.83
0.71
0.59
0.47
0.87
0.75
0.63
0.51
0.91
0.79
0.67
0.55
0.99
0.87
0.75
0.63
1.00
0.95
0.83
0.71
SHF
0.59
0.47
0.35
0.67
0.55
0.43
0.75
0.63
0.51
0.39
0.83
0.71
0.59
0.47
0.87
0.75
0.63
0.51
0.91
0.79
0.67
0.55
0.99
0.87
0.75
0.63
1.00
0.95
0.83
0.71
PKH-2GKL
PKH-2GKLH
CA : Capacity (W) SHC(W) : Sensible heat capacity
P.C. : Power consumption (kW) SHF : Sensible heat factor
9
Cooling capacity correction factors
15
20
25
15
20
25
CA
3,184
3,049
2,930
4,280
4,098
3,939
P.C.
1.01
1.09
1.15
1.56
1.68
1.79
CA
3,650
3,506
3,364
4,905
4,713
4,521
P.C.
1.12
1.20
1.28
1.73
1.86
1.98
CA
4,160
4,003
3,844
5,591
5,380
5,167
P.C.
1.23
1.32
1.42
1.90
2.05
2.19
CA
4,714
4,538
4,370
6,336
6,100
5,874
P.C.
1.35
1.45
1.56
2.09
2.25
2.41
CA
5,312
5,112
4,942
7,139
6,871
6,643
P.C.
1.48
1.59
1.70
2.28
2.46
2.64
CA
5,952
5,724
5,560
8,000
7,693
7,473
P.C.
1.61
1.73
1.86
2.49
2.68
2.87
-10 -5 0Service Ref.
Indoor
intake
air
D.B.(˚C)
PKH-1.6GKL
PKH-1.6GKLH
PKH-2GKL
PKH-2GKLH
5
Outdoor intake air W.B.(˚C)
10 15
Service Ref.
PKH-1.6GKL
PKH-1.6GKLH
PKH-2GKL
PKH-2GKLH
Refrigerant piping length(one way)
5m 10m 15m 20m 25m 30m 35m 40m 45m 50m
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
0.995
0.995
—
—
—
—
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 253546
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)
Service Ref.
PKH-1.6GKL
PKH-1.6GKLH
PKH-2GKL
PKH-2GKLH
5m 10m 15m 20m 25m 30m 35m 40m 45m 50m
1.00
1.00
0.993
0.992
2) HEATING CAPACITY
Heating capacity correction factors
0.984
0.983
Refrigerant piping length(one way)
0.978
0.978
0.969
0.966
0.961
0.959
0.956
0.950
0.948
0.945
CA : Capacity (W)
P.C. : Power consumption (kW)
—
—
—
—
2. PERFORMANCE CURVE
Cooling
10
Heating
Service Ref.
Indoor unit
Outdoor unit
PKH-1.6GKL
PKH-1.6GKLH
PUH-1.6VKA
2
Cool
4,400
1.43
0.07
0.33
0.40
1.36
6.79
30
4,550
(5,220)
1.39
(2.06)
0.07
(0.74)
0.33
(3.38)
0.40
(3.45)
Heat
1.32
6.59
30
6,150
(6,820)
2.21
(2.88)
0.07
(0.74)
0.33
(3.38)
0.40
(3.45)
Cool
5,400
2.19
0.07
0.33
0.40
2.12
9.83
43
Heat
2.14
9.93
43
PKH-2GKL
PKH-2GKLH
PUH-2VKA
2
Outdoor
unit
Indoor
unit
Mode
Capacity(W)
Total Input(kW)
Input(kW)
Current(A)
Starting current(A)
Input(kW)
Current(A)
Starting current(A)
3. ELECTRICAL DATA
Indoor unit· · · · · 220V 50Hz 1phase
Outdoor unit · · · 220V 50Hz 1phase
w : ( ) shows the heater on rating.
Indoor unit· · · · · 230V 50Hz 1phase
Outdoor unit· · · · 230V 50Hz 1phase
w : ( ) shows the heater on rating.
Indoor unit· · · · · 240V 50Hz 1phase
Outdoor unit· · · · 240V 50Hz 1phase
w : ( ) shows the heater on rating.
Service Ref.
Mode
Capacity(W)
Total Input(kW)
Input(kW)
Current(A)
unit
Indoor
Starting current(A)
Input(kW)
Current(A)
unit
Outdoor
Starting current(A)
Service Ref.
Mode
Capacity(W)
Total Input(kW)
Input(kW)
Current(A)
unit
Indoor
Starting current(A)
Input(kW)
Current(A)
unit
Outdoor
Starting current(A)
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
PKH-1.6GKL
PKH-1.6GKLH
PUH-1.6VKA
Cool
4,450
1.47
0.07
0.33
0.40
1.40
6.76
32
PKH-1.6GKL
PKH-1.6GKLH
PUH-1.6VKA
Cool
4,500
1.51
0.07
0.33
0.40
1.44
6.74
33
2
Heat
4,600
(5,330)
1.43
(2.16)
0.07
(0.80)
0.33
(3.50)
0.40
(3.57)
1.36
6.57
32
2
Heat
4,650
(5,450)
1.48
(2.28)
0.07
(0.87)
0.33
(3.66)
0.40
(3.73)
1.41
6.60
33
5,450
11
PKH-2GKL
PKH-2GKLH
PUH-2VKA
Cool
2.23
0.07
0.33
0.40
2.16
9.78
44
PKH-2GKL
PKH-2GKLH
PUH-2VKA
Cool
5,500
2.27
0.07
0.33
0.40
2.20
9.86
45
2
Heat
6,200
(6,930)
2.25
(2.98)
0.07
(0.80)
0.33
(3.50)
0.40
(3.57)
2.18
9.87
44
2
Heat
6,250
(7,050)
2.29
(3.09)
0.07
(0.87)
0.33
(3.66)
0.40
(3.73)
2.22
9.95
45
4. STANDARD OPERATION DATA
Service Ref.
Without electric heater
With electric heater
Capacity W
Input
Indoor unit
Service Ref.
Without electric heater
With electric heater
Phase, Hz
Volts
Amperes
Outdoor unit Service Ref.
Phase,Hz
Volts
Amperes
Discharge pressure
Suction pressure
Discharge temperature
Condensing temperature
kW
V
A
V
A
MPa
(
kg/cm
MPa
(
kg/cm
˚C
˚C
PKH-1.6GKL
PKH-1.6GKLH
CoolingMode
4,500
1.51
Heating
4,650
[5,450]
1.48
[2.28]
PKH-1.6GKL
PKH-1.6GKLH
1, 50
240
0.33
PUH-1.6VKA
0.33
[3.66]
2
1, 50
240
6.74
1.77
2
)
(
)
18.0
0.54
2
)
(
)
5.5
79
47
6.60
1.85
(18.8)
0.41
(
4.2
83
48
)
PKH-2GKL
PKH-2GKLH
Cooling Heating
5,500
2.27
6,250
[7,050]
2.29
[3.09]
PKH-2GKL
PKH-2GKLH
1, 50
240
0.33
PUH-2VKA
0.33
[3.66]
2
1, 50
240
9.86 9.95
1.92
(19.6)
0.46
(
4.7
)
2.08
(21.2)
0.37
(3.8)
87 93
51 54
Suction temperature
Ref.pipe length
Intake air
temperature
Discharge air
Indoor side Refrigerant circuit Electrical circuit Total
temperature
Intake air
temperature
side
Outdoor
SHF
BF
D.B.
W.B.
D.B.
D.B.
W.B.
˚C
˚C
˚C
˚C
˚C
˚C
8
m
5
27
19
13.3
35
24
0.76
0.10
0.6
5
20
15
39.2
7
6
-
-
4–2
55
27 20
19 15
11.7 45.4
35 7
24 6
0.69
0.12
-
-
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
Service Ref.
Item
Air flow m3/
Air speed m/
min
sec
Coverage range m (ft)
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.
PKH-1.6GKL
PKH-1.6GKLH
12
5.3
10(32.8)
PKH-2GKL
PKH-2GKLH
12
5.3
10(32.8)
12
6. NOISE CRITERION CURVES
UNIT
WALL
1m
1m
MICROPHONE
Ambient temperature 27:
Test conditions are based on JIS Z8731
PKH-1.6/2GKL
PKH-1.6/2GKLH
90
80
70
60
50
40
30
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR
20
10
APPROXIMATE
THRESHOLD OF
REARING FOR
CONTINUOUS
NOISE
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
NOTCH
Hi
Lo
SPL(dB)
43
36
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
13
4
BYOFF
ONSTAND
HEATCOOL
OFF BY
ON STAND
COOL HEAT
ÅrÇoÇoÅqÅ@ëOñÅ@ÇeÇqÇnÇmÇs ÅrÇoÇoÅqÅ@ëOñÅ@ÇeÇqÇnÇmÇs
r.SLI
m m
MITSUBISHI ELECTRICMITSUBISHI ELECTRIC
r.SLI
m m
MITSUBISHI ELECTRICMITSUBISHI ELECTRIC
21
Right side
Less than 15
70
245
60
235
Auto vane
Front view
198 Air intake
53
340
715 Air intake 225
340 Air intake 80 280 Air intake 233
990
21
Left side
Knock out hole
for left piping.
Refrigerant pipe.
Drain pipe.
Wiring hole.
Knock out hole
for left piping.
Refrigerant pipe.
Drain pipe.
Wiring hole.
60
70
245
(Necessary clearance for
Unit installation)
Right side
Allowing clearances
Front view
Less than 130
50 or more 150 or more
180 or more
30 or more
for bolts
Left-rear
piping hole
left-rear piping
R52.5
R52.5
Installation plate
balance point hole
Details of installation plate
49-[5hole
for tapping screw
Knock out hole for
right-rear piping
Right-rear
piping hole
Unit center
14-[14hole
Knock out hole for
425
420
170
190
210
230
0
322
0
35
55
80
130
190
230
272
310
0
3595150
205
260
320
345
495
20
75
135
190
245
300
360
405
495
32
0
w1 Sleeves are available on the market.
w2 This size shows the lower end of through hole.
[90~[100[90
Through holeSleeve w1
1.6 . 2
Model
R52.5
R52.5
Gas pipe
Liquid pipe
Terminal block for
Terminal block to
outdoor unit
Filter grip
Service panel
(Power supply access)
5/8F
Gas pipeLiquid pipe
3/8F1.6 . 2
Model
(Right side piping
installation)
(Left side piping
installation)
Unit drain pipe O.D.20
Front view(to open the grille)
700 (Flexible hose total length800)
581
86
449
54
31 280
35
Knock out hole for under piping
Refrigerant piping.Drain pipe.
Wiring hole
12-Louvers(manual)
Lower side
80
50
395400
190
60
70 35
79
160
40
235
705 Air outlet
power supply
153
w2
OUTLINES AND DIMENSIONS
1. INDOOR UNIT
PKH-1.6GKL / PKH-2GKL
PKH-1.6GKLH / PKH-2GKLH
Unit : mm
14
5
PKH-1.6GKL / PKH-2GKL
PKH-1.6GKLH / PKH-2GKLH
WIRING DIAGRAM
15
6
REFRIGERANT SYSTEM DIAGRAM
PKH-1.6GKL, PKH-1.6GKLH / PUH-1.6VKA2
PKH-2GKL, PKH-2GKLH / PUH-2VKA2
Refrigerant pipe
Indoor unit
Indoor
heat
exchanger
Pipe
temperature
thermistor
(RT2)
Distributor
with
strainer
PKH-1.6, 2 (O.D.3.2 I.D.1.8 L500)
Restrictor
valve
Capillary
tube
Strainer
(option)
15.88mm( 5/8")
(with heat insulator)
Flexible tube
Flared
connection
Refrigerant pipe
(option)
9.52mm( 3/8")
(with heat insulator)
Ball
valve
Ball valve
(with Service port)
Refrigerant flow in cooling
Refrigerant flow in heating
Oil separator
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)
Strainer
Service
port
Accumulator
4-way valve
<4-Way valve solenoid coil>
Heating ON
Cooling OFF
High pressure
control switch
Outdoor unit
Outdoor heat exchanger
Bypass
valve
Restrictor
valve
Strainer
Unit : mm
Outdoor coil
thermistor
(TH)
Capillary
tube
16
7
OPERATION FLOW-CHART
MAIN OPERATION
START
YES
NO
NO
NO
YES
NO
NO
w 1
YES
YES
YES
w 4
Set time
complete
YES
NO
w 2
Trouble
Trouble STOP
PROTECTION DEVICE
SELF HOLD
Remote controller
trouble display
NO
YES
w 3
Remote controller
operation display
Operating mode
(COOL)
NO
Operating mode
(DRY)
NO
Operating mode
(HEAT)
w 6
NO
Operating mode
(FAN)
NO
Auto COOL/HEAT
operation
YES
COOL operation
YES
DRY operation
YES
HEAT operation
YES
FAN operation
w 7
Power circuit
breaker
1
YES
Check SW
ON twice
Operation SW
ON
“OFF” timer
NO
“ON” timer
Set time
complete
STOP
PROTECTION DEVICE
SELF HOLD RELEASE
Remote controller
indicator lamp OFF
Indoor side
Fan STOP
Auxiliary heater OFF
Outdoor side
Compressor OFF
Fan STOP
Four-way valve OFF
w 5
w1 In addition, the centralized control and remote control can be operated.
w2 The modes which indicate the sources of trouble are listed below.
● EO-Signal transmitting/receiving error
● P1-Room temperature thermistor malfunction
● P2-Pipe temperature thermistor malfunction
● P4-Drain sensor malfunction
● P5-Drain overflow
● P6-Coil frost/overheat protection
● P7-System error
● P8-Outdoor unit trouble
w3 The CHECK switch will show if an error has occurred in the past.
w4 Fan runs on low speed for 1 minute in order to remove overheat air.
w5 The 3-minute (6 minutes …heating mode) time-delay functions after compressor stops.
w6 FAN or AUTO mode is selected by the indoor dip switch setting.
w7 In FAN mode, fan speed and vane operation depend on the remote controller setting. (Compressor is OFF.)
17
COOLING OPERATION
COOL operation
Four-way valve/OFF
NO
NO
NO
NO
Vane setting notch
Initial
COOLING
w 8
50 deg downward angle
60 deg downward angle
Vane horizontal
w 9
YES
Vane initial
setting
Vane
YES
Fan speed
LOW
YES
Downward discharge
1 hour
YES
airflow
Compressor
thermostat
Allowance
cancel
ON
NO
NO
YES
YES
NO
w 11
YES
compressor operation
w 10
Cooling area
3-minute
time delay
time delay
3-minute
Coil frost
protection
NO
6-minute
NO
YES
NO
YES
NO
Allowance
period
NO
6 minute
time delay
Allowance set
YES
Coil frost protection
YES
10-minute
NO
compressor operation
Allowance cancel
Coil frost
prevention
NO
16-minute
NO
compressor operation
YES
Indoor pipe
temperature is
1°C or lower
NO
Compressor ON
1
YES
YES
YES
Coil frost
prevention
Compressor OFF
Pipe
YES
YES
NO
NO
3-minute
time delay
temperature is
10°C or higher
Defrosting protection
detection temperature
-1°C or lower
6-minute
time delay
Coil frost
prevention release
NO
1 min continue
FAN speed
LOW
FAN speed
LOW 5 min
elapse
YES
NO
Outdoor unit
YES
trouble
w8 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.
w9 When operating TEST RUN, the thermostat will be continuously ON.
w10 After 3 minute compressor operation, if the pipe temperature thermistor reads -15°C or below for 3 minutes, the compres-
sor will stop for 6 minutes.
w11 Heating area : Pipe temperature is more than 5 degrees above the room temperature.
Cooling area : Pipe temperature is more than 5 degrees below the room temperature.
FAN area : Pipe temperature is within 5 degrees either way of the room temperature.
18
HEATING OPERATION
Heat operation
YES
NO
NO
NO
YES
w 11
YES
YES
w 10
NO
Heating area
NO
Defrost
30 min. elapse
YES
Outdoor unit trouble
1
A
Outdoor unit
trouble
NO
Vane setting notch
Vane initial setting
Four-way valve ON
w 9
Allowance cancel
NO
Very low airflow
Compressor OFF
AUTOMATIC COOLING/HEATING OPERATION
NO
w 17
w 15
initial
HEATING
YES
NO
defrosting
NO
Hot adjust
in process
NO
Compressor ON
NO
Compressor
thermostat ON
NO
Indoor piping
-15°C or lower
trouble
1
>
=
2
w 16
YES
NO
YES
YES
Outdoor unit
FAN SPEED
Auto COOL/HEAT
operation
Initial mode
T1 To
COOL mode
YES
YES
YES
YES
YES
3 min.restart
prevention
NO
YES
6 min. restart
prevention
NO
Hot adjust start
FAN SPEED very low
Compressor ON
HEAT mode
10-minute
NO
compressor
operation
Allowance cancel
w 11
Heating
area
FAN STOP
w 11
FAN area
20 min.elaspe
YES
FAN area
Heating area
w 11
FAN area
Cooling area
Defrost operation
START
Four-way valve
OFF
YES
Defrost release
NO
B
Indoor piping
55°C or lower
NO
Auxiliary heater
ON
NO
Indoor piping
60°C or higher
YES
Auxiliary heater OFF
Overheat remote
START
NO
Indoor unit
70°C or higher
Allowance
period
Overload protect
1
2
NO
YES
YES
YES
YES
NO
Auxiliary heater
thermostat ON
Auxiliary heater ON
NO
6-minute restart
prevention
Allowance set
Compressor OFF
YES
YES
FAN SPEED
FAN SPEED
setting notch
Hot adjust
Airflow 10% up
Indoor piping
35°C or higher
NO
HOT adjust
5 min. elapse
YES
Low
FAN SPEED
Low 2 min.
elapse
YES
release
A
PKH-GKLH
Type
YES
3-minute
Auxiliary heater
OFF
YES
Pipe temperature
is 60°C or higher
YES
FAN speed
Low notch
YES
B
NO
NO
NO
NO
NO
NO
FAN setting notch
YES
YES
NO
NO
YES
HEAT operation
1
NO
T1 ] (To + 2)
After 15min.
T1 ] (To + 2)
HEAT operation
YES
NO
YES
Cool mode
set
1
COOL mode
NO
T1 [ (To - 2)
After 15min.
T1 [ (To-2)
COOL operation
w15 ( i ) Until Low airflow is set while in hot adjustment
(ii)While defrosting (FAN STOP)
(iii)When thermostat is OFF
In the case of( i ), (ii) and (iii) above, airflow is horizontal regardless the VANE setting.
w16 When AUTO operation is started, COOLor HEAT mode is selected automatically.
w17 T1 : Room temperature.
To : Set temperature.
19
DRY OPERATION
DRY
operation
Four-way valve / OFF
Vane
setting notch
NO
YES
NO
Initial dry
operation
YES
Vane initial setting
w12
Room temperature is
18°C or lower
NO
During
compressor ON
YES
3-minute
compressor
operation
YES
Compressor &
thermostat ON
YES
w8
w9
NO
NO
YES
3-minute
time delay
NO
Compressor &
thermostat
ON
NO
YES
w9
Compressor ON
time completes
YES
10-minute compressor
OFF timer start
Compressor OFF
Fan STOP
1
w8~9 Refer to page 26~27.
w12 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.
w13 Compressor ON time is decided by room temperature. Refer to page 26~27.
w14 In dry operation, compressor ON makes the fan speed LOW. Also, when the compressor OFF and the pipe temperature
is 26°C or less, the fan stops, or when the compressor OFF and the pipe temperature is below 6°C, the fan speed
changes to LOW mode.
It is not possible to set the fan speed with the remote controller
NO
w14
10-minute
compressor
OFF
YES
Compressor ON
time set
Compressor ON
Fan speed LOW
NO
w13
w14
20
8
ON/OFF
CHECK
ADDRESS
UNIT No.
FUNCTION No.
SELECTION No.
AM
PM
AM
PM
TEST RUN
FUNCTION
˚C
TEMP.
MICROPROCESSOR CONTROL
1. OUTLINE OF MICROPROCESSOR CONTROL
INPUT to remote controller
● OFF-ON switching.
● COOL/DRY-AUTO-HEAT selector switching.
● Thermostat setting.
● TIMER mode selector-switching and Timer
setting.
● HIGH-LOW fan speed switching.
● AUTO Vane selector (AIR DISCHARGE)
switching.
● TEST RUN switching.
● CHECK mode switching.
(Self diagnostic trouble shooting)
Indoor
unit
Remote controller board
● Processes and transmits
orders.
Non-polar, two-wire
cable maximum
length 500 meters
(WIRED only)
Signal
12VDC
OUTPUT to remote controller
Remote controller
● LCD indicator
INPUT from indoor unit
● Room temperature thermistor (RT1)
● Pipe temperature thermistor (RT2)
OUTPUT to indoor unit
● Auto vane’s angle setting.
● Booster heater ON-OFF Control.
● Emergency stop.
Independent Control of
Outdoor Unit
● Compressor protection
device working
● Defrosting
START-STOP
● Fan speed control.
● Crankcase heater control
ON-OFF.
● Self diagnostic function
Indoor controller board
● Receives orders from remote controller and
temperature data from indoor unit.
● Processes orders and data.
● Controls indoor and outdoor operation.
● Self diagnostic function.
w System control operation.
w Emergency operation.
w Set by dip switch on indoor controller board.
● Transmits the power to remote controller.
123
Polar three-wire cable
Outdoor unit
12VDC
1
2
3
● Compressor and
outdoor fan : ONOFF.
● Operation mode
OUTPUT to outdoor unit
change :COOLHEAT.
21
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