Mitsubishi OC390 Service Manual
SPLIT-TYPE, AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
April 2006
No. OC390
Indoor unit
[Model names] [Service Ref.]
PK-2.5FAKL PK-2.5FAKL
PK-3FAKL PK-3FAKL
PK-4FAKL PK-4FAKL
NOTE:
• This manual does not
cover outdoor units.
When servicing outdoor
units, please refer to the
service manual
OC206,OC353 and this
manual in a set.
No.OC152,
Indoor unit
Remote controller
Model name
indication
CONTENTS
1. PART NAMES AND FUNCTIONS ···················2
2. SPECIFICATIONS············································4
3. DATA ································································8
4. OUTLINES AND DIMENSIONS·····················12
5. WIRING DIAGRAM ········································15
6. REFRIGERANT SYSTEM DIAGRAM············16
7. TROUBLESHOOTING ···································17
8. FUNCTION SETTING·····································30
9. SYSTEM CONTROL ·····································33
10. DISASSEMBLY PROCEDURE ······················47
11. PARTS LIST···················································50
12. OPTIONAL PARTS·························Back Cover
1 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
Indicator lamp section
Air flow can be changed to horizontally
by moving the Guide vane to the left or
right.
Guide vane
● Indoor Unit
2
ON/OFF TEMP
FAN
VANE
TEST RUN
AUTO STOP
AUTO START
h
min
LOUVER
MODE
CHECK
RESETSET CLOCK
MODEL SELECT
NOT AVAILABLE
CHECK
TEST RUN
˚C
AMPM
AMPM
VANE CONTROL button
Used to change the air flow direction.
CLOCK button
RESET button
SET button
ON/OFF button
The unit is turned ON and OFF alternately
each time the button is pressed.
LOUVER button
This switch the horizontal fan motion ON
and OFF.
(Not available for this model.)
MODE SELECT button
Used to switch the operation mode between
cooling, drying, blowing, heating and auto
mode.
CHECK-TEST RUN button
Only press this button to perform an inspection check or test operation.
Do not use it for normal operation.
FAN SPEED SELECT button
Used to change the fan speed.
TIMER display
Displays when in timer operation or when
setting timer.
button
SET TEMPERATURE button sets any desired
room temperature.
CLOCK display
Displays the current time.
“ ” “ ” display
Displays the order of timer operation.
“ ” “ ” display
Displays whether timer is on or off.
w In case the outdoor unit is cool only type,
the heating mode is not available.
Buttons used to set the “hour and minute” of
the current time and timer settings.
h and min buttons
display
SET TEMP. display indicates desired temperature set.
display
FAN SPEED display indicates which fan
speed has been selected.
display
The vertical direction of air flow is indicated.
display
Blinks when model is selected.
display
Lights up while transmission to the indoor
unit is mode using switches.
display
CHECK&TEST RUN display indicates that
the unit is being checked or test-run.
display
OPERATION MODE display
Operation mode display indicates which operation mode is in effect.
TIMER CONTROL buttons
AUTO STOP (OFF timer): when this switch
is set, the air conditioner will be automatically stopped at the preset time.
AUTO START (ON timer): when this switch
is set, the air conditioner will be automatically started at the preset time.
MODEL SELECT
CHECK
TEST RUN
● Wireless remote controller
3
2
w4
w5
22,700
6,650
3.54
3.44
15.8(99)
58
27/19.0°C, 35/24°C
Cooling (JIS B8616)
PK-2.5FAKL
PK-2.5FAKL
Munsell 3.4Y 7.7/0.8(White)
Plate fin coil
Line flow (direct) o 2
0.04
15 - 20(530-706)
0 (direct blow)
—
Wireless remote controller & Built-in
39 - 45
20 (13/16)
1,400 (55-1/8)
235 (9-1/4)
340 (13-3/8)
24 (53)
23,900
7,000
2.56 / 2.62
PU-2.5VJA
1.TH
Single, 50Hz, 220/240V
2.46 / 2.52
11.4 / 10.7 (98/98)
45 / 49
24,400
7,150
3.01
PU-2.5NJA.TH
Single, 60Hz, 220V
2.91
13.4 (99)
58
Munsell 3.0Y 7.8/1.1
Capillary tube
Hermetic
Line start
Inner thermostat, HP/LP switch
Plate fin coil
Propeller (direct) o 1
0.085
50 (1765)
—
870 (34-1/4)
295 (+24) (11-5/8 (add 1))
850 (33-7/16)
71 (157)
9.52 (3/8)
15.88 (5/8)
Flared
Flared
w3 Max. 20m
w3 Max. 30m
NHJ41VMDT
2.0
32 / 38
NHJ38NBDT
1.7
—
52 53
R-22 2.4 (5.3) R-22 2.4 (5.3)
Single, 60Hz, 220V
0.095
0.44 (98)
0.7
Single, 50Hz, 220/240V
0.095 / 0.095
0.44 / 0.44 (98/90)
0.7 / 0.8
Item
Service Ref.
Condition
Capacity w1
Total input w1
Service Ref.
Power supply(phase, cycle, voltage)
Input
Running current (Power factor)
Starting current
External finish
Heat exchanger
Fan(drive) o No.
Fan motor output
Airflow (Low-High)
External static pressure
Booster heater
Operation control & Thermostat
Noise level (Low-High) w2
Unit drain pipe. O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
Input
Running current (Power factor)
Starting current
External finish
Refrigerant control
Compressor
Model
Motor output
Starter type
Protection devices
Crankcase heater
Heat exchanger
Fan(drive) o No.
Fan motor output
Airflow
Defrost method
Noise level w2
Dimensions
Weight
Refrigerant Charge
Pipe size O.D.
Connection method
Between the indoor &
outdoor units
Btu/h
W
kW
kW
A(%)
A
kW
m
3
/min(CFM)
Pa(mmAq)
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kW
A(%)
A
kW
W
kW
m
3
/min(CFM)
dB(A)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
mm(in.)
mm(in.)
Indoor, Outdoor D.B./W.B.°C
Liquid
Gas
W
D
H
W
D
H
REFRIGERANT PIPING
OUTDOOR UNIT
Indoor side
Outdoor side
Height difference
Piping length
INDOOR UNIT
Fan
Fan
SPECIFICATIONS
2-1. STANDARD SPECIFICATION
w1 Refrigerant piping length (one way) : 5m (16ft)
w2 Noise level is measured in an unacoustic room based on JIS conditions.
w3 Up to 20m it is unnecessary to charge additional refrigerant.
w4 Indoor, Outdoor D.B./W.B. : 29/19°C, 46/24°C.
w5 Cooling SSA385, 386
4
Item
Indoor, Outdoor D.B./W.B.°C
Condition
Capacity w1
Total input w1
Service Ref.
Power supply(phase, cycle, voltage)
Input
Running current (Power factor)
Starting current
External finish
Heat exchanger
Fan
Booster heater
INDOOR UNIT
Operation control & Thermostat
Noise level (Low-High) w2
Unit drain pipe. O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
External finish
Refrigerant control
Compressor
Heat exchanger
OUTDOOR UNIT
Fan
Defrost method
Noise level w2
Dimensions
Weight
Refrigerant Charge
Pipe size O.D.
Connection method
Between the indoor &
outdoor units
REFRIGERANT PIPING
Fan(drive) o No.
Fan motor output
Airflow (Low-High)
External static pressure
Input
Running current (Power factor)
Starting current
Model
Motor output
Starter type
Protection devices
Crankcase heater
Fan(drive) o No.
Fan motor output
Airflow
Indoor side
Outdoor side
Height difference
Piping length
W
D
H
W
D
H
Liquid
Gas
Service Ref.
Btu/h
W
kW
kW
A(%)
A
kW
3
/min(CFM)
m
Pa(mmAq)
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kW
A(%)
A
kW
W
kW
3
/min(CFM)
m
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
mm(in.)
mm(in.)
27,000
7,900
3.28 / 3.30 3.28 / 3.30
Single, 50Hz, 220/240V
0.095 / 0.095
0.44 / 0.44 (98/90)
0.7 / 0.8
Munsell 3.4Y 7.7/0.8(White)
Wireless remote controller & Built-in
PU-3VJC
Single, 50Hz, 220/240V
15.1/13.9(96/96)
NH52VNHT
1.TH
3.18 / 3.20
54 / 58
2.2
w6 w7
32 / 38 32 / 38 38
R-22 2.8 (6.2)
PU-3YJC.TH
3, 50Hz, 380/415V
3.18 / 3.20
5.7/5.3(85/84)
NH52YDAT
52 53
295 (+24) (11-5/8 (add 1))
PK-3FAKL
27/19.0°C, 35/24°C
Cooling (JIS B8616)
PK-3FAKL
Plate fin coil
Line flow (direct) o 2
15 - 20 (530-706)
0 (direct blow)
39 - 45
20 (13/16)
1,400 (55-1/8)
235 (9-1/4)
340 (13-3/8)
24 (53)
34 / 37
Munsell 3.0Y 7.8/1.1
Capillary tube
Hermetic
2.4
Line start
Plate fin coil
Propeller (direct) o 1
50 (1765)
870 (34-1/4)
850 (33-7/16)
73 (161)
9.52 (3/8)
15.88 (5/8)
w3 Max. 20m
w3 Max. 30m
w1 Refrigerant piping length (one way) : 5m (16ft)
w2 Noise level is measured in an unacoustic room based on JIS conditions.
w3 Up to 20m it is unnecessary to charge additional refrigerant.
w4 Indoor, Outdoor D.B./W.B. : 29/19°C, 46/24°C
w5 Cooling SSA385, 386
w6 Inner thermostat, HP switch, LP switch.
w7 Thermal switch, Reversed-phase protector, HP switch, LP switch, Thermal relay.
0.04
—
0.085
—
Flared
Flared
27,300
8,000
3.54
Single, 60Hz, 220V
0.095
0.44 (98)
0.7
PU-3NJA.TH
Single, 60Hz, 220V
3.44
17.6(89)
80
NHJ47NADT
2.2
w6
R-22 3.5 (7.7)
w4
w5
23,500
6,900
4.19
4.09
20.9(89)
80
5
Item
Service Ref.
PK-4FAKL
27/19.0°C, 35/24°C
Cooling (JIS B8616)
w4
w5
33,800
9,900
5.08
37,500
11,000
4.38
33,400
9,800
3.46 / 3.63 3.40 / 3.47
PU-4VLJSA
2.TH
Single, 50Hz, 220/240V
3.35 / 3.52
16.9 / 16.3 (90/90)
79 / 79
PU-4YJSA
1.TH
3, 50Hz, 380/415V
3.29 / 3.36
5.7 / 5.5 (87/85)
38 / 38
NH56VNDT
2.7
NHJ56YDAT
2.7
Line start
Munsell 3.0Y 7.8/1.1
Capillary tube
Hermetic
Plate fin coil
Propeller (direct) o 2
0.065 + 0.065
95 (3352)
—
870 (34-1/4)
295 (+24) (11-5/8 (add 1))
1258 (49-1/2)
94 (207)
9.52 (3/8)
19.05 (4/3)
Flared
Flared
w3 Max. 30m
w3 Max. 40m
PU-4TJSA.TH
3, 60Hz, 220V
4.27
12.2 (92)
69
NHJ56TKAT
2.7
w6 w7 w7
54 55 55
32 / 38 32 / 38 38
R-22 3.8 (8.4) R-22 4.6 (10.1) R-22 4.6 (10.1)
4.97
14.0(93)
69
PK-4FAKL
Munsell 3.4Y 7.7/0.8(White)
Plate fin coil
Line flow (direct) o 2
0.07
22 - 28 (777 - 989)
0 (direct blow)
—
Wireless remote controller & Built-in
41 - 46
20 (13/16)
1,680 (66-1/8)
235 (9-1/4)
340 (13-3/8)
28 (62)
Single, 50Hz, 220/240V
0.114 / 0.114
0.53 / 0.53 (98/90)
0.8 / 0.9
Single, 60Hz, 220V
0.114
0.53 (98)
0.8
Condition
Capacity w1
Total input w1
Service Ref.
Power supply(phase, cycle, voltage)
Input
Running current (Power factor)
Starting current
External finish
Heat exchanger
Fan(drive) o No.
Fan motor output
Airflow (Low-High)
External static pressure
Booster heater
Operation control & Thermostat
Noise level (Low-High) w2
Unit drain pipe. O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
Input
Running current (Power factor)
Starting current
External finish
Refrigerant control
Compressor
Model
Motor output
Starter type
Protection devices
Crankcase heater
Heat exchanger
Fan(drive) o No.
Fan motor output
Airflow
Defrost method
Noise level w2
Dimensions
Weight
Refrigerant Charge
Pipe size O.D.
Connection method
Between the indoor &
outdoor units
Btu/h
W
kW
kW
A(%)
A
kW
m
3
/min(CFM)
Pa(mmAq)
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kW
A(%)
A
kW
W
kW
m
3
/min(CFM)
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
mm(in.)
mm(in.)
Liquid
Gas
W
D
H
W
D
H
REFRIGERANT PIPING
OUTDOOR UNIT
Indoor side
Outdoor side
Height difference
Piping length
INDOOR UNIT
Indoor, Outdoor D.B./W.B.°C
Fan
Fan
w1 Refrigerant piping length (one way) : 5m (16ft)
w2 Noise level is measured in an unacoustic room based on JIS conditions.
w3 Up to 20m it is unnecessary to charge additional refrigerant.
w4 Indoor, Outdoor D.B./W.B. : 29/19°C, 46/24°C
w5 Cooling SSA385, 386
w6 Inner thermostat, HP switch, LP switch, Thermal switch
w7 Thermal switch, Reversed-phase protector, HP switch, LP switch, Thermal relay.
6
2-2. POWER SUPPLY & MODEL NAMES
Power supply Service Ref. (Indoor unit)
Service Ref. (Outdoor unit)
50Hz
1ph.
3ph.
1ph.
3ph.
220,230,240V
380/220,400/230,415/240V
220V
220V
PK-2.5FAKL
PU-2.5VJA1.TH
—
PU-2.5NJA.TH
—
PK-3FAKL
PU-3VJC
1.TH
PU-3YJC.TH
PU-3NJA.TH
—
PK-4FAKL
PU-4VLJSA2.TH
PU-4YJSA1.TH
—
PU-4TJSA.TH
60Hz
Power supply (1 Phase) V : 220V 50Hz V : 230V 50Hz
Service Ref.
PK-2.5FAKL
0.44
0.095
0.7
PU-2.5
PK-3FAKL
0.44
0.095
0.7
PU-3
PK-4FAKL
0.53
0.114
0.8
PU-4
PK-2.5FAKL
0.44
0.095
0.8
PU-2.5
PK-3FAKL
0.44
0.095
0.8
PU-3
PK-4FAKL
0.53
0.114
0.8
PU-4
Current
Input
Starting current
Outdoor unit
A
kW
A
Power supply (1 Phase) V : 240V 50Hz N : 220V 60Hz
Service Ref.
PK-2.5FAKL
0.44
0.095
0.8
PU-2.5
PK-3FAKL
0.44
0.095
0.8
PU-3
PK-4FAKL
0.53
0.114
0.9
PU-4
PK-2.5FAKL
0.44
0.095
0.7
PU-2.5
PK-3FAKL
0.44
0.095
0.7
PU-3
PK-4FAKL
0.53
0.114
0.8
PU-4
Current
Input
Starting current
Outdoor unit
A
kW
A
Notes : 1. Power supply key N
……
1ph, 220V, 60Hz Y…3ph, 380/220, 400/230,
V(L) …1ph, 220, 230 240V, 50Hz 415/240V, 50Hz, 4 wires
……
T
3ph, 220V, 60Hz
2. Primary power supplies for all indoor units are single-phase.
2-3. ELECTRICAL SPECIFICATION
Rating conditions
Series PK Indoor Unit (Single Phase)
JIS B8615, 8616
Indoor : D.B. 27°C (80°F), W.B. 19°C(66°F)
Outdoor : D.B. 35°C (95°F)
7
DATA3
Service Ref.
Temperature
PK-2.5FAKL
T.C. C.F.
(T.I.)
PK-3FAKL
T.C. C.F.
(T.I.)
PK-4FAKL
T.C. C.F.
(T.I.)
Outdoor D.B.
21:
(69.8°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
7.0
7.5
7.7
7.8
7.9
8.4
0.81
0.82
0.83
0.83
0.84
0.86
7.9
8.4
8.7
8.8
9.0
9.5
0.81
0.82
0.83
0.83
0.84
0.86
0.81
0.82
0.83
0.83
0.84
0.86
6.9
7.3
7.6
7.7
7.8
8.3
0.84
0.85
0.86
0.86
0.87
0.89
7.7
8.3
8.5
8.7
8.8
9.4
0.84
0.85
0.86
0.86
0.87
0.89
0.84
0.85
0.86
0.86
0.87
0.89
6.6
7.1
7.3
7.4
7.5
8.0
0.90
0.92
0.93
0.93
0.94
0.96
7.5
8.0
8.2
8.4
8.5
9.0
0.90
0.92
0.93
0.93
0.94
0.96
0.90
0.92
0.93
0.93
0.94
0.96
6.5
6.9
7.1
7.2
7.4
7.8
0.93
0.95
0.96
0.97
0.97
0.99
7.3
7.8
8.1
8.2
8.3
8.8
0.93
0.95
0.96
0.97
0.97
0.99
0.93
0.95
0.96
0.97
0.97
0.99
6.3
6.8
7.0
7.1
7.2
7.7
0.96
0.99
1.00
1.00
1.01
1.04
7.2
7.6
7.9
8.0
8.2
8.7
0.96
0.99
1.00
1.00
1.01
1.04
0.96
0.99
1.00
1.00
1.01
1.04
6.1
6.5
6.7
6.8
6.9
7.4
10.3
1.06
1.07
1.08
1.08
1.11
6.8
7.3
7.6
7.7
7.8
8.3
1.03
1.06
1.07
1.08
1.08
1.11
1.03
1.06
1.07
1.08
1.08
1.11
6.0
6.4
6.7
6.8
6.9
7.4
1.04
1.06
1.08
1.08
1.09
1.12
6.8
7.3
7.5
7.6
7.8
8.3
1.04
1.06
1.08
1.08
1.09
1.12
1.04
1.06
1.08
1.08
1.09
1.12
5.8
6.2
6.4
6.5
6.6
7.1
1.10
1.12
1.14
1.15
1.16
1.20
6.5
7.0
7.2
7.3
7.5
8.0
1.10
1.12
1.14
1.15
1.16
1.20
1.10
1.12
1.14
1.15
1.16
1.20
5.7
6.1
6.4
6.4
6.5
7.0
1.11
1.14
1.15
1.16
1.17
1.21
6.4
6.9
7.2
7.2
7.4
7.9
1.11
1.14
1.15
1.16
1.17
1.21
1.11
1.14
1.15
1.16
1.17
1.21
5.4
5.9
6.1
6.2
6.2
6.8
1.16
1.19
1.21
1.22
1.23
1.28
6.1
6.6
6.8
6.9
7.0
7.6
1.16
1.19
1.21
1.22
1.23
1.28
1.16
1.19
1.21
1.22
1.23
1.28
20
0.11
0.81
20
0.12
0.73
28
0.12
0.77
5.3
5.7
5.9
6.0
6.2
6.6
1.19
1.22
1.24
1.25
1.26
1.31
6.0
6.5
6.7
6.8
7.0
7.5
1.19
1.22
1.24
1.25
1.26
1.31
1.19
1.22
1.24
1.25
1.26
1.31
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67 °F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67 °F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67 °F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67 °F)
20: (68°F)
22: (71.6°F)
25:
(77°F)
30:
(86°F)
32.2:
(90°F)
35:
(95°F)
40:
(104°F)
40.6:
(105°F)
45:
(113°F)
46:
(115 °F)
50:
(69.8°F)
52:
(125.5°F)
Evaporator airflow (CMM)
Bypass factors
S.H.F . at rating conditions
Indoor W .B.
9.8
10.5
10.8
10.9
11.1
11.8
9.6
10.2
10.6
10.7
10.9
11.6
9.3
9.9
10.2
10.3
10.5
11.2
9.1
9.7
10.0
10.2
10.3
11.0
8.9
9.5
9.8
9.9
10.1
10.8
8.5
9.1
9.4
9.5
9.7
10.3
8.4
9.0
9.3
9.5
9.6
10.3
8.1
8.6
8.9
9.1
9.3
9.9
8.0
8.6
8.9
9.0
9.2
9.8
7.6
8.2
8.5
8.6
8.8
9.4
7.4
8.0
8.3
8.4
8.6
9.2
3-1. PERFORMANCE DATA
COOLING CAPACITY
50Hz
Notes: 1. T.C.: Total capacity (kW) …(kcal/h)=(kW) o 860, (Btu/h)=4 o (kW) o 860
C.F.(T.I.) : Correction factors of Total input(Indoor unit input + Outdoor unit input)
2. (°F)=32+9/5(°C)
3. Guaranteed operating range(cooling)
Lower limit … Indoor : D.B. 21°C(70°F), W.B. 15.5°C(60°F), Outdoor : D.B. 21°C(70°F).
{
Upper limit … Indoor : D.B. 35°C(95°F), W.B. 22.5°C(72.5°F), Outdoor : D.B. 52°C(125.5°F).
8
VLJ... D.B. 46°C(115°F).
COOLING CAPACITY
8.0
8.6
8.8
8.9
9.1
9.6
7.8
8.4
8.6
8.7
8.9
9.5
7.6
8.1
8.3
8.4
8.6
9.1
7.4
7.9
8.2
8.3
8.4
9.0
7.3
7.7
8.0
8.1
8.3
8.8
6.9
7.4
7.7
7.8
7.9
8.4
6.9
7.4
7.6
7.7
7.9
8.4
6.6
7.1
7.3
7.4
7.6
8.1
6.5
7.0
7.2
7.3
7.5
8.0
6.2
6.7
6.9
7.0
7.2
7.7
6.1
6.5
6.8
6.9
7.0
7.5
11.0
11.8
12.1
12.3
12.5
13.2
10.8
11.5
11.9
12.0
12.2
13.0
10.4
11.1
11.4
11.6
11.8
12.6
10.2
10.9
11.3
11.4
11.6
12.4
10.0
10.6
11.0
11.1
11.4
12.1
9.5
10.2
10.5
10.7
10.9
11.6
9.5
10.1
10.5
10.6
10.8
11.6
9.1
9.7
10.0
10.2
10.4
11.1
9.0
9.6
9.9
10.1
10.3
11.0
8.6
9.2
9.5
9.7
9.9
10.6
8.4
9.0
9.3
9.5
9.7
10.4
Service Ref.
Temperature
Outdoor D.B.
21:
(69.8°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
0.81
0.82
0.83
0.83
0.84
0.86
0.84
0.85
0.86
0.86
0.87
0.89
0.90
0.92
0.93
0.93
0.94
0.96
0.93
0.95
0.96
0.97
0.97
0.99
0.96
0.99
1.00
1.00
1.01
1.04
1.03
1.06
1.07
1.08
1.08
1.11
1.04
1.06
1.08
1.08
1.09
1.12
1.10
1.12
1.14
1.15
1.16
1.20
1.11
1.14
1.15
1.16
1.17
1.21
1.16
1.19
1.21
1.22
1.23
1.28
1.19
1.22
1.24
1.25
1.26
1.31
0.81
0.82
0.83
0.83
0.84
0.86
0.84
0.85
0.86
0.86
0.87
0.89
0.90
0.92
0.93
0.93
0.94
0.96
0.93
0.95
0.96
0.97
0.97
0.99
0.96
0.99
1.00
1.00
1.01
1.04
1.03
1.06
1.07
1.08
1.08
1.11
1.04
1.06
1.08
1.08
1.09
1.12
1.10
1.12
1.14
1.15
1.16
1.20
1.11
1.14
1.15
1.16
1.17
1.21
1.16
1.19
1.21
1.22
1.23
1.28
1.19
1.22
1.24
1.25
1.26
1.31
0.81
0.82
0.83
0.83
0.84
0.86
0.84
0.85
0.86
0.86
0.87
0.89
0.90
0.92
0.93
0.93
0.94
0.96
0.93
0.95
0.96
0.97
0.97
0.99
0.96
0.99
1.00
1.00
1.01
1.04
1.03
1.06
1.07
1.08
1.08
1.11
1.04
1.06
1.08
1.08
1.09
1.12
1.10
1.12
1.14
1.15
1.16
1.20
1.11
1.14
1.15
1.16
1.17
1.21
1.16
1.19
1.21
1.22
1.23
1.28
1.19
1.22
1.24
1.25
1.26
1.31
PK-2.5FAKL
T.C. C.F.
(T.I.)
7.2
7.6
7.9
8.0
8.1
8.6
PK-3FAKL
T.C. C.F.
(T.I.)
PK-4FAKL
T.C. C.F.
(T.I.)
7.0
7.5
7.7
7.8
8.0
8.5
6.8
7.2
7.4
7.6
7.7
8.2
6.6
7.0
7.3
7.4
7.5
8.0
6.5
6.9
7.2
7.3
7.4
7.9
6.2
6.6
6.8
7.0
7.1
7.6
6.1
6.6
6.8
6.9
7.0
7.5
5.9
6.3
6.5
6.6
6.7
7.2
5.8
6.2
6.5
6.6
6.7
7.2
5.6
6.0
6.2
6.3
6.4
6.9
5.4
5.9
6.0
6.2
6.3
6.8
Indoor W .B.
20
0.11
0.78
20
0.13
0.78
28
0.14
0.73
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
16: (60.8°F)
18: (64.4°F)
19: (66.2°F)
19.4: (67°F)
20: (68°F)
22: (71.6°F)
25:
(77°F)
30:
(86°F)
32.2:
(90°F)
35:
(95°F)
40:
(104°F)
40.6:
(105°F)
45:
(113 °F)
46:
(115 °F)
50:
(69.8°F)
52:
(125.5°F)
Evaporator airflow (CMM)
Bypass factors
S.H.F . at rating conditions
60Hz
Notes: 1. T.C.: Total capacity (kW) …(kcal/h)=(kW) o 860, (Btu/h)=4 o (kW) o 860
C.F.(T.I.) : Correction factors of Total input(Indoor unit input + Outdoor unit input)
2. (°F)=32+9/5(°C)
3. Guaranteed operating range(cooling)
{
Lower limit … Indoor : D.B. 21°C(70°F), W.B. 15.5°C(60°F), Outdoor : D.B. 21°C(70°F).
Upper limit … Indoor : D.B. 35°C(95°F), W.B. 22.5°C(72.5°F), Outdoor : D.B. 52°C(125.5°F)…NJ, TJ
9
Service Ref.
Refrigerant piping length (one way)
5m (16ft)
1.0
1.0
1.0
10m (33ft)
0.983
0.978
0.984
15m (49ft)
0.972
0.962
0.974
20m (66ft)
0.961
0.948
0.964
25m (82ft)
0.951
0.934
0.954
30m (98ft)
0.940
0.921
0.944
35m (115ft)
—
—
0.914
40m (13ft)
—
—
0.902
PK-2.5FAKL
PK-3FAKL
PK-4FAKL
Refrigerant piping length (one way)
Service Ref.
5m (16ft)
1.0
1.0
1.0
10m (33ft)
0.978
0.971
0.980
15m (49ft)
0.963
0.950
0.966
20m (66ft)
0.948
0.931
0.952
25m (82ft)
0.934
0.913
0.939
30m (98ft)
0.921
0.896
0.926
35m (115ft)
—
—
0.941
40m (131ft)
—
—
0.902
PK-2.5FAKL
PK-3FAKL
PK-4FAKL
COOLING CAPACITY correction factors
50Hz
COOLING CAPACITY correction factors
60Hz
3-2. STANDARD OPERATION DATA
Service Ref.
MODE COOLING
Capacity
TotalElectrical CircuitRefrigerant circuit
Input
Indoor unit Service Ref.
phase, Hz
Volts
Amperes
Outdoor unit Service Ref.
phase, Hz
Volts
Amperes
Discharge pressure
Suction pressure
Discharge temperature
Condensing temperature
Suction temp.
Ref. pipe length
Intake air temperature
Discharge air temperature
Indoor side
Intake air temperature
side
Outdoor
D.B.
W.B.
D.B.
D.B.
W.B.
W
kw
Mpa
(O/F)
Mpa
(O/F)
:
:
:
m
:
:
:
:
:
Total Electrical circuit Refrigerant circuit Indoor side Outdoor side
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(
OO/FF
)
PK-2.5FAKL PK-3FAKL PK-4FAKL
7,000
2.56
PK-2.5FAKL
1,50
220
0.44
PU-2.5
1.TH
VJA
1,50
220
11.4
2.05
(20.9)
0.47
(4.79)
74.3
52
10.3
5
27
19
14.4
35
24
COOLING
6,650
3.54
1,60
220
0.44
PU-2.5
NJA.TH
1,60
220
15.8
2.13
(21.7)
0.44
(4.49)
87
54
10
5
29
19
14.1
46
24
COOLING
7,900
3.28
1,50
0.44
PU-3
VJC
1,50
15.1
1.99
(20.3)
0.47
(4.79)
13.0
PK-3FAKL
220
1.TH
220
86
51
6
5
27
19
35
24
COOLING
6,900
4.19
1,60
220
0.44
PU-3
NJA.TH
1,60
220
20.9
2.07
(21.1)
0.44
(4.49)
70
53
4
5
29
19
13.2
46
24
COOLING
9,800
3.46
PK-4FAKL
1,50
220
0.53
PU4YJSA1.TH
3,50
380
5.7
1.80
(18.4)
0.48
(4.89)
65
49
6
5
27
19
13.9
35
24
COOLING
9,900
5.08
1,60
220
0.53
PU4TJSA.TH
3,60
220
14.0
1.93
(19.7)
0.45
(4.59)
74
52
5
5
29
19
13.2
46
24
3-3. ADDITIONAL REFRIGERANT CHARGE (R-22…kg(lbs))
Service Ref.
PK-2.5FAKL
PK-3FAKL
PK-4FAKL
Outdoor unit precharged (kg)
V---2.4, N---2.4
V---2.8, Y---2.8, N---3.5
VL---3.8, Y---4.6, T---4.6
(up to 20m)
20m (66ft)
0
0
0
10
Refrigerant piping length (one way)
25m (82ft)
0.06(0.13)
0.06(0.13)
0.15(0.33)
30m (98ft)
0.12(0.26)
0.12(0.26)
0.30(0.66)
35m (115ft)
—
—
0.45(0.99)
40m (131ft)
0.6(1.32)
—
—
3-4. OUTLET AIR SPEED AND COVERAGE RANGE
Airflow
Air speed
Coverage range
w
Airflow
Air speed
Coverage range
w
m3/min
m/sec.
m(ft)
m
3
/min
m/sec.
m(ft)
60Hz 50Hz
Frequency
Configuration Wall mounted
Service Ref.
20
4.9
12.4(41)
20
4.9
12.4(41)
PK-2.5FAKL
20
4.9
12.4(41)
20
4.9
12.4(41)
PK-3FAKL
28
5.4
15.3(50)
28
5.4
15.3(50)
PK-4FAKL
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB(0dB=0.0002 µ bar)
BAND CENTER FREQUENCIES, Hz
PK-2.5FAKL
PK-3FAKL
High
Low
45
SPL(dB)39LINE
NOTCH
UNIT
WALL
1m
1m
MICROPHONE
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB(0dB=0.0002 µ bar)
BAND CENTER FREQUENCIES, Hz
PK-4FAKL
High
NOTCH
Low
46
SPL(dB)
41
LINE
w 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 furniture inside the room.
3-5. NOISE CRITERION CURVES
11
4
235
45
235
45
235
45
235
62.5
13
58
42
340
197
Top
Front
Right side
Left side
1400
1090
Air intake
235
C
Knock out hole for right piping
Refrigerant pipe. Drain pipe
Knock out hole for
left piping
Drain hose for
left-hand side piping
Drain hose
Lower side
Auto vane
(Gas pipe)
Drain hose
Bolt
Gas pipe
15
Terminal block for power supply
Terminal block for control
Terminal block for
wired remote controller
(Liquid pipe)
Liquid pipe 9.52(3/8F)
Gas pipe 15.88(5/8F)
Liquid pipe
A
30
32
39
98
37
74
439
100
30
37
74
4
2980
280
3030
18430
60
10
39
37
65
100
AB C
Knock out hole for piping
25
1110
183
240
B
1120
552
55
120
107
111
Air outlet
552
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 opening
12-ø6 hole for
tapping screw
66-ø6 hole for
tapping screw
Wall fixture
Unit center
32-ø12 hole for bolt
225
18
18
91
900
990
455
285
245
19
240 280 314
610
90
Drainage range
on left-hand side
Drainage range
on right-hand side
10 91=(910)
180
OUTLINES AND DIMENSIONS
PK-2.5FAKL
PK-3FAKL
Unit : mm
12
Terminal block for
wired remote controller
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
(Liquid pipe)
Gas pipe 19.05(3/4F)
Liquid pipe 9.52(3/8F)
Liquid pipe
A
30
32
39
98
37
74
439
100
30
37
74
4
2980
280
3030
18430
60
10
39
37
65
100
AB 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
PK-4FAKL
Unit : mm
13
WIRELESS REMOTE CONTROLLER
159.3
55
58
19
Unit : mm
14
5
WIRING DIAGRAM
PK-2.5FAKL
PK-3FAKL
PK-4FAKL
SYMBOL NAME
P.B
INDOOR POWER BOARD
I.B
INDOOR CONTROLLER BOARD
FUSE FUSE (T6.3AL250V)
ZNR VARISTOR
CN2L CONNECTOR<LOSSNAY>
CN32 CONNECTOR<REMOTE SWITCH>
CN41 CONNECTOR<HA TERMINAL-A>
CN51 CONNECTOR<CENTRALLY CONTROL>
SW1 SWITCH <MODEL SELECTION>wSee Table 1.
SW2 SWITCH <CAPACITY CODE>wSee Table 2.
SW5 SWITCH<SYSTEM SELECTION>wSee Table 3.
SW6
SWITCH<EMERGENCY OPERATION>
SWE
CONNECTOR<EMERGENCY OPERATION>
X1 RELAY<DEW PREVENTION HEATER>
X4 RELAY<FAN MOTOR>
BCR
FAN CONTROL ELEMENT
LED1
POWER SUPPLY<I.B>
LED2
POWER SUPPLY<R.B>
Please set the voltage
using the remote controller.
For the setting method,
please refer to the indoor
unit Installation Manual
Refer to tables 1, 2, 3.
BCR
ON
OFF
SWE
w
When installing optional
drain-up machine, disconnect
the CN31 jumper connector
and replace it with the
drain sensor (DS).
When installing drain-up
machine (Optional part).
WHT
(
)
D.SENSOR
CN31
1 2 1 23
DS
SYMBOL NAME
C CAPACITOR<FAN MOTOR>
FAN MOTOR
MF
MV
VANE MOTOR
TB2
TERMINAL BLOCK (POWER SUPPLY)
TB4
TERMINAL BLOCK<INDOOR/OUTDOOR
CONNECTING LINE>
TB5
TERMINAL BLOCK<REMOTE CONTROLLER
TRANSMISSION LINE >
TH1
ROOM TEMP.THERMISTOR
<0:/15k", 25:/5.4k" DETECT>
TH2
PIPE TEMP.THERMISTOR/LIQUID
<0:/15k", 25:/5.4k" DETECT>
MF
1 3 5
C
RED
WHT WHT
RED
1 3 1 31 3 1 3 1 3
5
(FAN)
X4 X1
SW5SW1 SW2
(
PUMP
CN27
<For PK-2.5, 3, 4FAKL-H models>
WHT
FAN
X4
RED
WHT
(D.SENSOR)
CN31
)
(
OPTION
(D.HEATER)
RED
(PUMP)
CN27
1 21 2 3
DP
XP
CNC
)
RED
GRN
(VANE)
CN6V
MV
XP
6
H2
X1
TB2
BLU
BLU
ON
OFF
WHT
(
WIRELESS
CN90
W.B
L
N
BLU
(D.U.M)
CNP
FUSE
ZNR
SW6
1 2
(INTAKE)
)
RU
RECEIVER
RED
RED
BLU
ORN
(POWER)
CND
CN41 CN2L
CN51 CN32
(
INDOOR/OUTDOOR
RED
COMUNICATION
WHT
CN20
(PIPE)
1 2
TH1 TH2
1 2 3
CN21
1 2 1 2
YLW
9
CNB
BZ
LED1 LED2 SW2 SW1
[Servicing]
Fasten terminal of the terminal board"TB4"equips lock system.
To remove the fastened terminal, pull it while pressing the protruding
portion (locking lever) of the terminal. The fastened terminal protruding
portion should face upward.
WHT
BOARD)
LED2
BLK
CN30
ORN
RED
(POWER
CNDK
WHT
(POWER
BOARD)
CN2D
)
BLU
(
REMOCON
CN22
BLU
I.B
LED1
BLU
R.B
WIRED REMOTE CONTROLLER BOARD
(OPTION)
TB6
TERMINAL BLOCK<REMOTE CONTROLLER
TRANSMISSION LINE >
W.B
WIRELESS REMOTE CONTROLLER BOARD
RECEIVING UNIT
RU
BZ
BUZZER
LED1
LED<RUN INDICATOR >
LED2
LED<HOT ADJUST>
SW1
SWITCH<HEATING ON/OFF>
SW2
SWITCH<COOLING ON/OFF
H2
DEW PREVENTION HEATER
DS
DRAIN SENSOR
DP
DRAIN-UP MACHINE
XP
RELAY (DRAIN-UP MACHINE)
P.B
CNSK
1 2
3
(RED)
DC13.1V
CN2S
1 2
(WHT)
BLK
1
WHT
2
)
TB5
1
TRANSMISSION WIRES DC12V
2
NAMESYMBOL
GRN/YLW
R.B
(OPTION)
TB6
TB2
TB4
L
N
1
2
3
12
POWER SUPPLY
~(1 PHASE)
220-240V 50Hz
220V 60Hz
TO OUTDOOR UNIT
Table 1
SW1
1 2 3 4 5
NOTES:
1. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
2. Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers (1, 2, 3).
3. Symbols used in wiring diagram above are, : Connector, : Terminal (block).
[Self-diagnosis]
Please refer to technical manuals etc.
[Emergency operation procedure]
1.When the indoor unit microcomputer has failed, but all other components work properly, if you set the switch(SWE,SW6)on the
indoor control board, the indoor unit will begin Emergency Operation.
2.When you activate emergency operation of the cooling, you have to set the switch(SWE)and switch(SW6)on indoor controller.
SWE:ON · Indoor fan is running high speed. · Drain-up machine(Optional)is working.
SW6-1:ON · Emergency operation of cooling mode.
3.Before you activate emergency operation, check the following points:
(1) Emergency operation cannot be activated when:
· The outdoor unit malfunctions. · The indoor fan malfunctions.
(2) Emergency operation becomes continuous only by switching the power source on / off. ON / OFF on the remote control or temperature
control etc. does not function.
(3) Emergency cooling should be limited to 10 hours maximum(The indoor unit heat exchanger may freeze).
(4) After emergency operation has been deactivated, set the switches etc. to their original positions.
(5) Movement of the vanes does not work in emergency operation, therefore you have to slowly set them manually to the appropriate
position.
ON
OFF
Table 2
PK-2.5FAKL
SW2MODELS
1 2 3 4 5
MODELS SW2
ON
PK-3FAKL
OFF
1 2 3 4 5
ON
OFF
MODELS
PK-4FAKL
SW2
1 2 3 4 5
ON
OFF
Table 3
SW5
1 2 3 4 5 6 7 8
ON
OFF
15
6
INDOOR UNIT
PK-2.5
PK-3
PK-4
OUTDOOR UNIT
PU-2.5/3J series
PU-4J series
Flexible tube
Flared
connection
Strainer
Flared
connection
PK-2.5
/ PK-3 Refrigerant pipe [15.88(5/8")
(with insulator) option
PK-4 Refrigerant pipe [19.05(3/4")
(with insulator) option
Refrigerant pipe [ 9.52(3/8")
(with insulator) option
Low pressure
switch
Charge
pIug
Check
pIug
High pressure
switch
Outdoor heat
exchanger
Muffler
Strainer
Capillary tube for
injection Only
PU-2.5V/ N
PU-3N
PU-4Y/ T
Capillary
tube
Compressor
Accumulator
Ball valve
(with service port)
flow of refrigerant
PU-2.5 [O.D.3.2 o I.D.1.6 o L760] o 2pcs
PU-3 [O.D.3.2 o I.D.1.8 o L800] o 2pcs
PU-4 [O.D.3.2 o I.D.2.0 o L840] o 2pcs
Capillary tube size
Ball
valve
strainer
Indoor heat
exchanger
Distributor
with
strainer
Pipe
temperature
thermistor
TH2
Indoor heat
exchanger
Distributor
with
strainer
Flexible tube
Flared
connection
Flared
connection
Refrigerant pipe [15.88(5/8")
(with insulator) option
Refrigerant pipe [ 9.52(3/8")
(with heat insulator) option
Ball
valve
Low pressure
switch
Charge
pIug
Check
pIug
High pressure
switch
Outdoor heat
exchanger
Capillary tube
Compressor
Accumulator
Ball valve
(with service port)
flow of refrigerant
[O.D.3.2 oI.D.1.8 oL800]
o2pcs
strainer
Pipe
temperature
thermistor
TH2
D.P.R.
(Discharge pressure regulator)
strainer
strainer
REFRIGERANT SYSTEM DIAGRAM
PK-3FAKL / PU-3VJC
1.TH, PU-3YJC.TH
Unit : mm(inch)
PK-2.5FAKL / PU-2.5VJA1.TH, PU-2.5NJA.TH
PK-3FAKL / PU-3NJA.TH
PK-4FAKL / PU-4VLJSA
2
.TH, PU-4YJSA1.TH, PU-4TJSA.TH
16
7 TROUBLESHOOTING
Unit conditions at service
Error code
Actions to be taken for service (summary)
The inferior phenomenon is
reoccurring.
Displayed
Not displayed
Judge what is wrong and take a corrective action
according to “SELF-DIAGNOSIS ACTION TABLE” (7-3).
Identify the cause of the inferior phenomenon and take
a corrective action according to “TROUBLESHOOTING
BY INFERIOR PHENOMENA ” (7-4).
The inferior phenomenon is
not reoccurring.
Logged
Not logged
1Consider the temporary defects such as the work of
protection devices in the refrigerant circuit including
compressor, poor connection of wiring, noise and etc.
Re-check the symptom, and check the installation
environment, refrigerant amount, weather when the
inferior phenomenon occurred, and wiring related.
2Reset error code logs and restart the unit after finishing
service.
3There is no abnormality in electrical components,
controller boards, and remote controller.
1Recheck the abnormal symptom.
2Identify the cause of the inferior phenomenon and take
a corrective action according to “TROUBLESHOOTING
BY INFERIOR PHENOMENA ” (7-4).
3Continue to operate unit for the time being if the cause
is not ascertained.
4There is no abnormality in electrical components,
controller boards, remote controller etc.
7-1. TROUBLESHOOTING
<Error code display by self-diagnosis and actions to be taken for service (summary)>
Present and past error codes are logged and displayed on the wired remote controller or controller board of outdoor unit.
Actions to be taken for service,which depends on whether or not the the inferior phenomenon is reoccurring at service, are
summarized in the table below. Check the contents below before investigating details.
17
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