The old refrigerant and lubricant in the existing piping
contains a large amount of chlorine which may cause the
lubricant deterioration of the new unit.
Use “low residual oil piping”
If there is a large amount of residual oil (hydraulic oil, etc.)
inside the piping and joints, deterioration of the lubricant
will result.
Use ESTR , ETHER or HAB as the lubricant to
coat flares and flange connection parts.
If large amount of mineral oil enter, that can cause
deterioration of refrigerant oil etc.
Use liquid refrigerant to charge the system.
If gas refrigerant is used to seal the system, the composition
of the refrigerant in the cylinder will change and performance
may drop.
Do not use a refrigerant other than R407C.
If another refrigerant (R22, etc.) is used, the chlorine in the
refrigerant may cause the lubricant deterioration.
Use a vacuum pump with a reverse flow check valve.
The vacuum pump oil may flow back into the refrigerant
cycle and cause the lubricant deterioration.
Store the piping to be used during installation
indoors with keep both ends sealed until just
before brazing.
(Store elbows and other joints in a plastic bag.)
If dust, dirt, or water enters the refrigerant cycle,
deterioration of the oil and compressor trouble may result.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
Gravimeter
Unit
SAFETY PRECAUTION
CAUTIONS RELATED TO NEW REFRIGERANT
Cautions for units utilising refrigerant R407C
[1] Cautions for service
·After recovering the all refrigerant in the unit, proceed to working.
·Do not release refrigerant in the air.
·After completing the repair service, recharge the cycle with the specified amount of
liquid refrigerant.
[2] Refrigerant recharging
(1) Refrigerant recharging process
1Direct charging from the cylinder.
·R407C cylinder are available on the market has a syphon pipe.
·Leave the syphon pipe cylinder standing and recharge it.
(By liquid refrigerant)
(2) Recharge in refrigerant leakage case
·After recovering the all refrigerant in the unit, proceed to working.
·Do not release the refrigerant in the air.
·After completing the repair service, recharge the cycle with the specified amount of
liquid refrigerant.
3
[3] Service tools
Use the below service tools as exclusive tools for R407C refrigerant.
No.Tool nameSpecifications
1Gauge manifold·Only for R407C.
·Use the existing fitting SPECIFICATIONS. (UNF7/16)
·Use high-tension side pressure of 3.43MPa·G or over.
2Charge hose·Only for R407C.
·Use pressure performance of 5.10MPa·G or over.
3Electronic scale
4Gas leak detector·Use the detector for R134a or R407C.
5Adapter for reverse flow check.·Attach on vacuum pump.
6Refrigerant charge base.
7Refrigerant cylinder.·For R407C·Top of cylinder (Brown)
·Cylinder with syphon
8Refrigerant recovery equipment.
4
CAUTIONS RELATED TO NEW REFRIGERANT
Use new refrigerant pipes.
Make sure that the inside and outside of refrigerant piping is clean and it has no contamination
such as sulfur hazardous for use, oxides, dirt,
shaving particles, etc.
In addition, use pipes with specified thickness.
Store the piping to be used during installation
indoors and keep both ends of the piping sealed
until just before brazing. (Leave elbow joints, etc.
in their packaging.)
Use ester oil, ether oil or alkylbenzene oil (small
amount) as the refrigerant oil applied to flares
and flange connections.
In case of using the existing pipes for R22, be careful with
the followings.
· For RP4 ,5 and 6, be sure to perform replacement
operation before test run.
· Change flare nut to the one provided with this product.
Use a newly flared pipe.
· Avoid using thin pipes.
Charge refrigerant from liquid phase of gas
cylinder.
If the refrigerant is charged from gas phase, composition
change may occur in refrigerant and the efficiency will be
lowered.
Do not use refrigerant other than R410A.
If other refrigerant (R22 etc.) is used, chlorine in refrigerant can cause deterioration of refrigerant oil etc.
Use a vacuum pump with a reverse flow check
valve.
Vacuum pump oil may flow back into refrigerant cycle and
that can cause deterioration of refrigerant oil etc.
Use the following tools specifically designed for
use with R410A refrigerant.
The following tools are necessary to use R410A refrigerant.
Keep the tools with care.
If dirt, dust or moisture enter into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of compressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigerant will change and the efficiency will be lowered.
Flare tool
Electronic refrigerant
charging scale
Vacuum pump adaptor
Size adjustment gauge
Gauge manifold
Torque wrench
Gas leak detector
Charge hose
Tools for R410A
Contamination inside refrigerant piping can cause deterioration of refrigerant oil etc.
If dirt, dust or moisture enter into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of compressor.
If large amount of mineral oil enter, that can cause deterioration of refrigerant oil etc.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
Cautions for units utilising refrigerant R410A
[1] Cautions for service
(1) Perform service after collecting the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
(4) When performing service, install a filter drier simultaneously.
Be sure to use a filter drier for new refrigerant.
[2] Additional refrigerant charge
When charging directly from cylinder
· Check that cylinder for R410A on the market is syphon type.
· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
5
Gravimeter
Unit
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No.Specifications
1Gauge manifold·Only for R410A
·Use the existing fitting
·Use high-tension side pressure of 5.3MPa·G or over.
2Charge hose·Only for R410A
·Use pressure performance of 5.09MPa·G or over.
3Electronic scale
4Gas leak detector·Use the detector for R134a, R407C or R410A.
5Adaptor for reverse flow check·Attach on vacuum pump.
6Refrigerant charge base
7Refrigerant cylinder·Only for R410ATop of cylinder (Pink)
8Refrigerant recovery equipment
specifications
Cylinder with syphon
. (UNF1/2)
6
3
Air outlet
Intake grille
Air intake
Left/right guide vanes
Change the direction of airflow
from the horizontal blower.
Long-life filter
Removes dust and foreign matter from air coming in
through the grille (Recommended cleaning interval :
Approx, every 2,500 operating hours)
Up/down guide vanes
Change the direction of airflow from the
vertical blower.
PAR-20MAA
ON/OFF
CENTRALLY CONTROLLED
ERROR CODE
CLOCK
ON OFF
˚C
CHECK
CHECK MODE
FILTER
TEST RUN
FUNCTION
˚C
1Hr.
NOT AVAILABLE
STAND BY
DEFROST
FILTER
CHECK TEST
TEMP.
TIMER SET
Press this button to switch the cooler,
electronic dry (dehumidify), automatic
and heater modes.
OPERATION SWITCH button
This sets the room temperature. The
temperature setting can be performed
in 1: units
Setting range
Cooler 19: to 30:
Heater 17: to 28:
TEMP. ADJUSTMENT button
This switches between continuous
operation and the timer operation.
TIMER button
This switches between the operation
and stop modes each time it is pressed.
The lamp on this button lights during
operation.
ON/OFF button
Only press this button to perform an
inspection check or test operation.
Do not use it for normal operation.
CHECK-TEST RUN button
This switch the horizontal fan motion
ON and OFF.
(Not available for this model.)
LOUVER button
This sets the ventilation fan speed.
VENTILATION button
This adjusts the vertical angle of the
ventilation.
AIR DIRECTION button
This resets the filter service indication
display
FILTER button
This sets the current time, start time
and stop time.
TIME SETTING button
This sets the ventilation fan speed.
AIR SPEED button
PART NAMES AND FUNCTIONS
● Indoor Unit
● Remote controller
Once the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.
● Operation buttons
7
PAR-20MAA
ON/OFF
CENTRALLY CONTROLLED
ERROR CODE
CLOCK
ON OFF
˚C
CHECK
CHECK MODE
FILTER
TEST RUN
FUNCTION
˚C
1Hr.
NOT AVAILABLE
STAND BY
DEFROST
FILTER
CHECK TEST
TEMP.
TIMER SET
● Display
CENTRALLY
CONTROLLED display
This indicates when the unit is con-
trolled by optional features such as
central control type remote controller.
TIMER 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.
DEFROST display
This indicates when the defrost oper-
ation is performed.
CLOCK 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.
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.
AIR DIRECTION display
This displays the air direction.
FAN SPEED display
The selected fan speed is displayed.
ROOM TEMPERATURE 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.
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.
SET TEMPERATURE display
This displays the selected setting
temperature.
FILTER
This lamp lights when the filter need
to be cleaned.
POWER display
This lamp lights when electricity is
supplied to the unit.
display
Caution
● Only the Power 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, operation switch button
and TEMP. adjustment button do not operate.
● “NOT AVAILABLE” is displayed when the Air speed button is pressed.This indicates that this room unit is not equipped with
the fan direction adjustment function and the louver function.
● When power is turned ON for the first time, it is normal that “H0” is displayed on the room temperature indication (For max.
2minutes). Please wait until this “H0” indication disappear then start the operation.
8
4
Service Ref.
Item
Btu/h
W
kW
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
Function
Capacity
Total input
Service Ref.
Power supply(phase, cycle, voltage)
Input
Running current
Starting current
External finish
Heat exchanger
FanFan(drive) x No.
Fan motor output
Airflow
(Low-Med2-Med1-High)
External static pressure
Operation control & Thermostat
Noise level(Low-Med2-Med1-High)
Unit drain pipe O.D.
Dimensions
5. Refer to the service manual of outdoor unit for the outdoor unit's specifications.
Indoor Unit Single phase 240V 50Hz
Outdoor Unit Single phase 230V 50Hz / 3 phase 400V 50Hz
13
Outdoor
D.B. 46˚C
D.B. -5˚C
Service Ref.
Item
Btu/h
W
kW
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
Function
Capacity
Total input
Service Ref.
Power supply(phase, cycle, voltage)
Input
Running current
Starting current
External finish
Heat exchanger
FanFan(drive) x No.
Fan motor output
Airflow
(Low-Med2-Med1-High)
External static pressure
Operation control & Thermostat
Noise level(Low-Med2-Med1-High)
Unit drain pipe O.D.
Dimensions
Phase, Hz
Volts
Amperes
Discharge pressure
Suction pressure
Discharge temperature
Condensing temperature
Suction temperature
Ref. pipe length
Intake air temperature
Discharge air temperature
Intake air temperature
Mode
Service Ref.
SHF
BF
W
KW
V
A
V
A
°C
°C
°C
m
°C
°C
°C
°C
°C
Cooling
4700
1.67
0.41
7.08
2.96
0.83
78
50
4.8
5
27
19
13.6
35
24
0.76
0.11
Heating
5500
1.71
0.41
7.25
2.98
0.66
79
46
-1.4
5
20
15
43.0
7
6
—
—
1, 50
230
PUHZ-RP2VHA
1, 50
230
Cooling
6000
1.63
0.53
6.78
2.57
0.98
64
43
10.5
5
27
19
13.9
35
24
0.81
0.08
Heating
7000
2.03
0.53
8.57
3.09
0.75
78
47
2.1
5
20
15
41.0
7
6
—
—
1, 50
230
PUHZ-RP2.5VHA
1, 50
230
Cooling
7100
2.14
0.53
9.06
2.67
0.91
69
45
8.9
5
27
19
12.8
35
24
0.74
0.09
Heating
8000
2.43
0.53
10.36
3.27
0.73
82
49
1.5
5
20
15
44.2
7
6
—
—
1, 50
230
PUHZ-RP3VHA
1, 50
230
Cooling
10000
2.92
0.69
12.40
2.58
0.90
69
44
9.0
5
27
19
12.5
35
24
0.75
0.06
Heating
11200
3.26
0.69
13.92
2.78
0.73
78
46
3.3
5
20
15
44.5
7
6
—
—
1, 50
230
PUHZ-RP4VHA
PUHZ-RP4VHA1
1, 50
230
Cooling
12500
3.89
1.01
16.43
2.74
0.88
74
46
8.3
5
27
19
13.3
35
24
0.77
0.08
Heating
14000
4.34
1.01
18.44
3.21
0.69
82
46
0.8
5
20
15
42.3
7
6
—
—
1, 50
230
PUHZ-RP5VHA
PUHZ-RP5VHA1
1, 50
230
Cooling
14000
4.96
1.01
21.22
2.84
0.86
80
47
10.1
5
27
19
12.3
35
24
0.74
0.06
Heating
16000
4.60
1.01
19.61
2.83
0.66
78
45
-0.2
5
20
15
45.8
7
6
—
—
1, 50
230
PUHZ-RP6VHA
PUHZ-RP6VHA1
1, 50
230
MPa
MPa
D.B.
W.B.
D.B.
D.B.
W.B.
PCA-RP2GA
PCA-RP2GA
PCA-RP2.5GA
PCA-RP2.5GA
PCA-RP3GA
PCA-RP3GA
PCA-RP4GA
PCA-RP4GA
PCA-RP5GA
PCA-RP5GA
PCA-RP6GA
PCA-RP6GA
Heat pump type(1)
Rating Conditions (ISO T1)
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(
OOf/FF
)
45
Heat pump type(2)
Electrical circuit
Total Refrigerant circuit
Indoor side
Outdoor
side
Capacity
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 temperature
Ref. pipe length
Intake air temperature
Discharge air temperature
Intake air temperature
Mode
Service Ref.
SHF
BF
W
KW
V
A
V
A
°C
°C
°C
m
°C
°C
°C
°C
°C
°C
Cooling
5350
2.35
0.41
10.82/3.32
2.30
0.48
86
41
3.5
5
27
19
12.6
35
24
0.72
0.09
Heating
6200
2.36
0.41
10.87 / 3.34
2.23
0.43
88
50
0.3
5
20
15
46.4
7
6
—
—
1, 50
230
1/3, 50
230/400
Cooling
6600
2.62
0.53
11.99 / 3.63
2.08
0.50
78
49
6.0
5
27
19
13.6
35
24
0.75
0.08
Heating
7250
2.66
0.53
12.18 / 3.69
2.14
0.42
82
48
0.7
5
20
15
41.9
7
6
—
—
1, 50
230
1/3, 50
230/400
Cooling
7450
3.37
0.53
15.57 / 4.82
2.28
0.44
86
52
3.5
5
27
19
12.3
35
24
0.73
0.08
Heating
9150
3.48
0.53
16.10 / 5.00
2.51
0.40
88
52
-0.5
5
20
15
48.2
7
6
—
—
1, 50
230
1/3, 50
230/400
Cooling
9600
3.62
0.69
16.61 / 5.06
1.94
0.50
75
47
10.0
5
27
19
12.8
35
24
0.76
0.06
Heating
10600
3.81
0.69
17.51 / 5.36
2.04
0.40
67
46
0.2
5
20
15
43.1
7
6
—
—
1, 50
230
1/3, 50
230/400
Cooling
12300
4.91
1.01
6.79
2.17
0.44
76
51
4.2
5
27
19
13.5
35
24
0.77
0.07
Heating
14800
5.11
1.01
7.10
2.26
0.41
78
46
0.5
5
20
15
44.0
7
6
—
—
1, 50
230
3, 50
400
Cooling
14200
5.89
1.01
8.34
2.30
0.46
79
51
4.0
5
27
19
12.1
35
24
0.74
0.07
Heating
17000
6.24
1.01
8.90
2.22
0.42
74
48
-0.5
5
20
15
47.7
7
6
—
—
1, 50
230
3, 50
400
MPa
MPa
D.B.
W.B.
D.B.
D.B.
W.B.
PCA-RP2GA
PCA-RP2GA
PCA-RP2.5GA
PCA-RP2.5GA
PCA-RP3GA
PCA-RP3GA
PCA-RP4GA
PCA-RP4GA
PCA-RP5GA
PCA-RP5GA
PCA-RP6GA
PCA-RP6GA
PUH-P3VGAA
PUH-P3VGAA.UK
PUH-P3VGAA
1.UK
PUH-P3YGAA
PUH-P3YGAA.UK
PUH-P3YGAA
1.UK
PUH-P2.5VGAA
PUH-P2.5VGAA.UK
PUH-P2.5VGAA
1.UK
PUH-P2.5YGAA.UK
PUH-P2.5YGAA1.UK
PUH-P2VGAA
PUH-P2VGAA.UK
PUH-P2VGAA
1.UK
PUH-P2YGAA.UK
PUH-P2YGAA1.UK
PUH-P4VGAA.UK
PUH-P4VGAA
1.UK
PUH-P4YGAA
PUH-P4YGAA.UK
PUH-P4YGAA
1.UK
PUH-P5YGAA
PUH-P5YGAA.UK
PUH-P5YGAA
1.UK
PUH-P6YGAA
PUH-P6YGAA.UK
PUH-P6YGAA
1.UK
Rating Conditions (ISO T1)
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(OOf/FF)
46
Cooling only type
Electrical circuit
Total Refrigerant circuit
Indoor side
Outdoor
side
Capacity
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 temperature
Ref. pipe length
Intake air temperature
Discharge air temperature
Intake air temperature
Mode
Service Ref.
SHF
BF
W
KW
V
A
V
A
°C
°C
°C
m
°C
°C
°C
°C
°C
°C
Cooling
5350
2.35
0.41
10.82/3.32
2.30
0.48
86
41
3.5
5
27
19
12.6
35
24
0.72
0.09
1, 50
230
1/3, 50
230/400
Cooling
6600
2.62
0.53
11.99 / 3.63
2.08
0.50
78
49
6.0
5
27
19
13.6
35
24
0.75
0.08
1, 50
230
1/3, 50
230/400
Cooling
7450
3.37
0.53
15.57 / 4.82
2.28
0.44
86
52
3.5
5
27
19
12.3
35
24
0.73
0.08
1, 50
230
1/3, 50
230/400
Cooling
9600
3.62
0.69
16.61 / 5.06
1.94
0.50
75
47
10.0
5
27
19
12.8
35
24
0.76
0.06
1, 50
230
1/3, 50
230/400
Cooling
12300
4.91
1.01
6.79
2.17
0.44
76
51
4.2
5
27
19
13.5
35
24
0.77
0.07
1, 50
230
3, 50
415
Cooling
14200
5.89
1.01
8.34
2.30
0.46
79
51
4.0
5
27
19
12.1
35
24
0.74
0.07
1, 50
230
3, 50
415
MPa
MPa
D.B.
W.B.
D.B.
D.B.
W.B.
PCA-RP2GA
PCA-RP2GA
PCA-RP2.5GA
PCA-RP2.5GA
PCA-RP3GA
PCA-RP3GA
PCA-RP4GA
PCA-RP4GA
PCA-RP5GA
PCA-RP5GA
PCA-RP6GA
PCA-RP6GA
PU-P3VGAA
PU-P3VGAA.UK
PU-P3VGAA
1.UK
PU-P3YGAA
PU-P3YGAA.UK
PU-P3YGAA
1.UK
PU-P2.5VGAA
PU-P2.5VGAA.UK
PU-P2.5VGAA
1.UK
PU-P2.5YGAA.UK
PU-P2.5YGAA1.UK
PU-P2VGAA
PU-P2VGAA.UK
PU-P2VGAA
1.UK
PU-P2YGAA.UK
PU-P2YGAA1.UK
PU-P4VGAA.UK
PU-P4VGAA
1.UK
PU-P4YGAA
PU-P4YGAA.UK
PU-P4YGAA
1.UK
PU-P5YGAA
PU-P5YGAA.UK
PU-P5YGAA
1.UK
PU-P6YGAA
PU-P6YGAA.UK
PU-P6YGAA
1.UK
Rating Conditions (ISO T1)
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(OOf/FF)
5-5. OUTLET AIR SPEED AND COVERAGE RANGE
Air flow
Air speed
Coverage range
m3/min
m/sec
m
PCA-RP2GA
13
3.7
8.8
PCA-RP2.5GA
18
3.8
10.4
PCA-RP3GAPCA-RP5GAPCA-GP6GA
10.4
47
18
3.8
PCA-RP4GA
25
4.1
12.6
34
4.4
15.2
34
4.4
15.2
90
80
70
60
50
40
30
20
10
631252505001000200040008000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
PCA-RP2GA
NOTCH
High
Med1
Med2
Low
SPL(dB)
42
40
38
37
LINE
90
80
70
60
50
40
30
20
10
631252505001000200040008000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
PCA-RP2.5GA
PCA-RP3GA
NOTCH
High
Med1
Med2
Low
SPL(dB)
43
41
39
37
LINE
90
80
70
60
50
40
30
20
10
631252505001000200040008000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
PCA-RP4GA
NOTCH
High
Med1
Med2
Low
SPL(dB)
45
43
41
40
LINE
90
80
70
60
50
40
30
20
10
631252505001000200040008000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
PCA-RP5GA
NOTCH
High
Med1
Med2
Low
SPL(dB)
46
45
43
41
LINE
5-6. NOISE CRITERION CURVES
48
PCA-RP6GA
90
80
NOTCH
High
Med1
Med2
Low
SPL(dB)
48
46
44
42
LINE
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
631252505001000200040008000
BAND CENTER FREQUENCIES, Hz
1m
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
ceiling
1m
about 1.4m
MICROPHONE
unit
49
6
180
210
157
15
85
182 (1/4F, 3/8F) liquid
201 (5/8F) gas
241 (Drainage)
Air intake
918
16190
254
680
50656
Electrical box
226
70
6
2
7
18
150
140
70
320
80
933 (suspension bolt pitch)
983
1000
Air outlet
81
904
76
525
928
352
263
171
138
86
46 1751
131
38
38
79
161
32
179
42
6~7
Ceiling
Electrical box
[Front view]
When electrical
box is pulled
down
3
2
8
5
1
4
OUTLINES AND DIMENSIONS
INDOOR UNIT
PCA-RP2GA
Unit : mm
NOTES:
1. Use M10 or W3/8 screws for anchor bolt.
2. Please be sure when installing the drain-up machine (option parts).
Refrigerant pipe will be only upper drain pipe arrangement.
1 Drainage pipe connection (26mm I.D.)
2 Drainage pipe connection (for the left arrangement)
3 Knock out hole for left drain-piping arrangement
4 Refrigerant-pipe connection (gas pipe side/flared connection)
5 Refrigerant-pipe connection (liquid pipe side/flared connection)
6 Knock out hole for upper drain pipe arrangement
7 Knock out hole for left drain pipe arrangement
8 Knock out hole for wiring arrangement
50
PCA-RP2.5GA
16190
254
680
50656
1240 (suspension bolt pitch)
140
150
32080
18
70
6
1290
1214
210
180
81 76
1310
Air outlet
1228
Air intake
85
182
201
241
15
157
(3/8F liquid)
(5/8F gas)
(Drainage)
7
2
Electrical box
70
226
3
2
8
5
1
4
Electrical box
When electrical
box is pulled
down
[ Front view ]
Ceiling
32
179
161
38
3879
42
6~7
525
1235
416
263
171
138
86
131
175 1
46
PCA-RP3GA
Unit : mm
NOTES:
1. Use M10 or W3/8 screws for anchor bolt.
2. Please be sure when installing the drain-up machine (option parts).
Refrigerant pipe will be only upper drain pipe arrangement.
1 Drainage pipe connection (26mm I.D.)
2 Drainage pipe connection (for the left arrangement)
3 Knock out hole for left drain-piping arrangement
4 Refrigerant-pipe connection (gas pipe side/flared connection)
5 Refrigerant-pipe connection (liquid pipe side/flared connection)
6 Knock out hole for upper drain pipe arrangement
7 Knock out hole for left drain pipe arrangement
8 Knock out hole for wiring arrangement
51
16190
254
680
50656
1228
Air intake
1214
270
207
81 96
1310
Air outlet
1240 (suspension bolt pitch)
140
150
32080
18
70
6
87
182
198
245
16
217
(3/8F liquid)
(5/8F, 3/4F gas)
(Drainage)
7
2
Electrical box
70
229
3
2
8
5
1
4
Electrical box
When electrical
box is pulled
down
[ Front view ]
Ceiling
93
160
38
38 140
42 239
6~7
525
1235
687
263
171
138
86
192
236
1
45
PCA-RP4GA
Unit : mm
NOTES:
1. Use M10 or W3/8 screws for anchor bolt.
2. Please be sure when installing the drain-up machine (option parts).
Refrigerant pipe will be only upper drain pipe arrangement.
1 Drainage pipe connection (26mm I.D.)
2 Drainage pipe connection (for the left arrangement)
3 Knock out hole for left drain-piping arrangement
4 Refrigerant-pipe connection (gas pipe side/flared connection)
5 Refrigerant-pipe connection (liquid pipe side/flared connection)
6 Knock out hole for upper drain pipe arrangement
7 Knock out hole for left drain pipe arrangement
8 Knock out hole for wiring arrangement
52
PCA-RP5GA
PCA-RP6GA
Unit : mm
NOTES:
1. Use M10 or W3/8 screws for anchor bolt.
2. Please be sure when installing the drain-up machine (option parts).
Refrigerant pipe will be only upper drain pipe arrangement.
6
18
150
140
70
32080
7
3
42 239
70
229
2
Electrical box
2
Electrical box
Air outlet
Air intake
6~7
93
160
525
[ Front view ]
Ceiling
1545
1547(suspension bolt pitch)
1524
1620
1535
1
5
8
38 140
38
687
86
138
171
263
192
87
16
217
270
207
81 96
680
50656
254
16190
4
1
1 Drainage pipe connection (26mm I.D.)
2 Drainage pipe connection (for the left arrangement)
236
3 Knock out hole for left drain-piping arrangement
4 Refrigerant-pipe connection (gas pipe side/flared connection)
45
5 Refrigerant-pipe connection (liquid pipe side/flared connection)
6 Knock out hole for upper drain pipe arrangement
7 Knock out hole for left drain pipe arrangement
8 Knock out hole for wiring arrangement
182
198
245
(3/8F liquid)
(5/8F, 3/4F gas)
(Drainage)
When electrical
box is pulled
down
53
7
Service board
234
ON
1
OFF
234
ON
1
OFF
234
ON
1
OFF
234
ON
1
OFF
234
ON
1
OFF
OFF
ON
4321
Manufacture
<For service board>
<For manufacture>
OFF
ON
54321
J21
J21
J21
J21
J21
J21
J22
J22
J22
J22
J22
J22J23
J23
J23
J23
J23
J23
J24
J24
J24
J24
J24
J24
J15J14J13J12J11
MODELS
SW1
SW2
2GA
2.5GA
3GA
4GA
5GA
6GA
[Self-diagnosis]
1.For details on how to operate self-diagnosis with the wireless
remote control,refer to the technical manuals etc.
[Emergency operation procedure]
1.When the wired remote control or the indoor unit microcomputer has failed,but all other
components work properly, if you set the switch(SWE) on the indoor control panel ON,the indoor
unit will begin Emergency Operation.
When Emergency Operation is activated, the indoor unit operates as follows:
(1)Indoor fan is running at high speed.
(2)Drain-up machine(optional) is working.
NOTES:
2.Indoor and outdoor connecting wires are made with polarities,make
wiring matching terminal numbers(S1,S2,S3).
4.Symbols used in wiring diagram above are,
3.Make sure that the main power supply of the booster heater is
independent.
1.Since the outdoor side electric wiring may change be sure to
check the outdoor unit electric wiring for servicing.
:Connector, : Terminal (block).
[Servicing]
CN31 DRAIN SENSOR
When installing drain-up
machine(Optional part).
WWhen installing optional
drain-up machine,disconnect
the CN31 jumper connector
and replace it with the
drain sensor(DS).
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.
Judge what is wrong and take a corrective action
according to 9-2. “Self-diagnosis action table”.
Identify the cause of the inferior phenomenon and take
a corrective action according to 9-3. “Trouble shooting by
inferior phenomena”.
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 9-3. “Trouble shooting
by inferior phenomena”.
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.
TROUBLESHOOTING
9-1. 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 and the inferior phenomenon reoccurrence at field are summarised in the table below. Check
the contents below before investigating details.
56
9-2. SELF-DIAGNOSIS ACTION TABLE
Error Code
P1
P2
Meaning of error code and detection method
Abnormality of room temperature
thermistor (TH1)
1 The unit is in three-minute resume
prevention mode if short/open of
thermistor is detected. Abnormal if the
unit does not reset normally after three
minutes. (The unit returns to normal
operation, if it has normally reset.)
2 Constantly detected during cooling,
drying, and heating operation.
Short: 90: or more
Open: -40: or less
Abnormality of pipe temperature
thermistor/Liquid (TH2)
1 The unit is in three-minute resume
prevention mode if short/open of
thermistor is detected. Abnormal if the
unit does not reset normally after three
minutes. (The unit returns to normal
operation, if it has normally reset.)
2 Constantly detected during cooling,
drying, and heating (except defrosting)
operation.
Short: 90: or more
Open: -40: or less
Note: Refer to the manual of outdoor unit for the details of display
such as F, U, and other E.
Cause
1 Defective thermistor
characteristics.
2 Contact failure of connector
(CN20) on the indoor controller
board. (Insert failure)
3 Breaking of wire or contact
failure of thermistor wiring.
4 Defective indoor controller
board.
1 Defective thermistor
characteristics.
2 Contact failure of connector
(CN21) on the indoor controller
board. (Insert failure)
3 Breaking of wire or contact
failure of thermistor wiring.
4 Defective refrigerant circuit is
causing thermistor temperature
of 90: or more or -40: or
less.
5 Defective indoor controller board.
Countermeasure
1–3 Check resistance value of thermistor.
0: ······15.0k"
10: ····9.6k"
20: ····6.3k"
30: ····4.3k"
40: ····3.0k"
If you put force on (draw or bend) the lead wire
with measuring resistance value of thermistor
breaking of wire or contact failure can be
detected.
2 Check contact failure of connector (CN20) on
the indoor controller board. Refer to 9-6-2.
Turn the power on again and check restart
after inserting connector again.
4 Check room temperature display on remote
controller.
Replace indoor controller board if there is
abnormal difference with actual room
temperature.
Turn the power off, and on again to operate
after check.
1–3 Check resistance value of thermistor.
For characteristics, refer to (P1) above.
2 Check contact failure of connector (CN21) on
the indoor controller board. Refer to 9-6-2.
Turn the power on and check restart after
inserting connector again.
4 Check pipe <liquid> temperature with remote
controller in test run mode. If pipe <liquid>
temperature is exclusively low (in cooling
mode) or high (in heating mode), refrigerant
circuit may have defective.
5 Check pipe <liquid> temperature with remote
controller in test run mode. If there is exclusive
difference with actual pipe <liquid> temperature,
replace indoor controller board.
P4
P5
Abnormality of drain sensor (DS)
1 Suspensive abnormality, if short/open of
thermistor is detected for 30 seconds
continuously.
Turn off compressor and indoor fan.
2 Short/open is detected for 30 seconds
continuously during suspensive
abnormality.
(The unit returns to normal operation,
if it has normally reset.)
3 Detect the following condition.
• During cooling and drying operation.
• In case that pipe <liquid> temperature
- room temperature <-10 deg
(Except defrosting)
• When pipe <liquid> temperature or
room temperature is short/open
temperature.
• During drain pomp operation.
Malfunction of drain pump (DP)
1 Suspensive abnormality, if thermistor
of drain sensor is let heat itself and
temperature rises slightly. Turn off
compressor and indoor fan.
2 Drain pomp is abnormal if the condition
above is detected during suspensive
abnormality.
3 Constantly detected during drain pomp
operation.
1 Defective thermistor
characteristics
2 Contact failure of connector
(CN31) on the indoor controller
board. (Insert failure).
3 Breaking of wire or contact
failure of drain sensor wiring.
4 Defective indoor controller board.
1 Malfunction of drain pump
2 Defective drain
Clogged drain pump
Clogged drain pipe
3 Attached drop of water at the
drain sensor
• Drops of drain trickles from
lead wire.
• Clogged filter is causing
wave of drain.
4 Defective indoor controller board.
Turn the power off, and on again to operate
after check.
1–3 Check resistance value of thermistor.
0: ······6.0k"
10: ····3.9k"
20: ····2.6k"
30: ····1.8k"
40: ····1.3k"
2 Check contact failure of connector (CN31) on
the indoor controller board. Refer to 9-6-2.
Turn the power on again and check restart
after inserting connector again.
4 Replace indoor controller board if drain
pump operates with the line of drain sensor
connector CN31-1 and 2 is short-circuited,
and abnormality reappears.
Turn the power off, and on again to operate
after check.
1 Check if drain-up machine works.
2 Check drain function.
3 Check the setting of lead wire of drain sensor
and check clogs of the filter.
4 Replace indoor controller board if drain
pump operates with the line of drain sensor
connector CN31-1 and 2 is short-circuited
and abnormality reappears.
Refer to 9-6-2.
Turn the power off, and on again to operate
after check.
57
Error Code
123456
ON
OFF
123456
ON
OFF
123456
ON
OFF
123456
ON
OFF
A-Control Service Tool SW2 setting
Temperature display of indoor liquid pipe
Indoor 1
Temperature display of indoor liquid pipe
Indoor 2
Temperature display of indoor condenser/
evaporator pipe Indoor 1
Temperature display of indoor condenser/
evaporator pipe Indoor 2
P6
Meaning of error code and detection method
Freezing/overheating protection is
working
1 Freezing protection (Cooling mode)
The unit is in six-minute resume prevention
mode if pipe <liquid or condenser/evap-
(Cooling or drying mode)
1 Clogged filter (reduced airflow)
2 Short cycle of air path
3 Low-load (low temperature)
orator> temperature stays under
-15: for three minutes, three minutes
after the compressor started. Abnormal
if it stays under -15: for three minutes
again within 16 minutes after six-minute
4 Defective indoor fan motor
• Fan motor is defective.
• Indoor controller board is
resume prevention mode.
2 Overheating protection (Heating mode)
The units is in six-minute resume
prevention mode if pipe <condenser /
evaporator> temperature is detected as
over 74: after the compressor started.
Abnormal if the temperature of over
5 Overcharge of refrigerant
6 Defective refrigerant circuit
74: is detected again within 10 minutes
after six-minute resume prevention
mode.
(Heating mode)
1 Clogged filter (reduced airflow)
2 Short cycle of air path
3 Over-load (high temperature)
4 Defective indoor fan motor
• Fan motor is defective.
• Indoor controller board is
5 Overcharge of refrigerant
6 Defective refrigerant circuit
7 Bypass circuit of outdoor unit
Cause
operation beyond the tolerance
range
defective.
(clogs)
operation beyond the tolerance
range
defective.
(clogs)
is defective.
Countermeasure
(Cooling or drying mode)
1 Check clogs of the filter.
2 Remove shields.
4 Measure the resistance of fan motor's winding.
Measure the output voltage of fan's connector
(FAN) onthe indoor controller board.
WThe indoor controller board should be
normal when voltage of AC 100~240V is
detected while fan motor is connected.
Refer to 9-6-2.
56 Check operating condition of refrigerant
circuit.
(Heating mode)
1 Check clogs of the filter.
2 Remove shields.
4 Measure the resistance of fan motor's
winding.
Measure the output voltage of fan's connector
(FAN) on the indoor controller board.
WThe indoor controller board should be
normal when voltage of AC 220~240V is
detected while fan motor is connected.
Refer to 9-6-2.
5~7Check operating condition of refrigerant
circuit.
P8
Abnormality of pipe temperature
<Cooling mode>
Detected as abnormal when the pipe temperature is not in the cooling range 3 minutes later of compressor start and 6 minutes later of the liquid or condenser/evaporator pipe is out of cooling range.
Note 1) It takes at least 9 min. to detect.
Note 2) Abnormality P8 is not detected in
drying mode.
Cooling range : Indoor pipe temperature
(TH2 or TH5) – intake temperature
(TH1) [ -3 deg
TH: Lower temperature between: liquid
pipe temperature and condenser/
evaporator temperature
<Heating mode>
When 10 seconds have passed after the
compressor starts operation and the hot
adjustment mode has finished, the unit is
detected as abnormal when
condenser/evaporator pipe temperature is
not in heating range within 20 minutes.
between indoor room
temperature and pipe <liquid
or condenser / evaporator>
temperature thermistor
• Shortage of refrigerant
• Disconnected holder of pipe
<liquid or condenser /
evaporator> thermistor
• Defective refrigerant circuit
2 Converse connection of
extension pipe (on plural units
connection)
3 Converse wiring of indoor/
outdoor unit connecting wire
(on plural units connection)
4 Defective detection of indoor
room temperature and pipe
<condenser / evaporator>
temperature thermistor
5 Stop valve is not opened
completely.
58
1~4Check pipe <liquid or condenser /
evaporator> temperature with room
temperature display on remote
controller and outdoor controller circuit
board.
Pipe <liquid or condenser / evaporator>
temperature display is indicated by
setting SW2 of outdoor controller circuit
board as follows.
Conduct temperature check with outdoor
controller circuit board after connecting
(
‘A-Control Service Tool(PAC-SK52ST)’.
23Check converse connection of extension
pipe or converse wiring of indoor/outdoor
unit connecting wire.
)
Error Code
123456
ON
OFF
123456
ON
OFF
A-Control Service Tool SW2 setting
Temperature display of indoor condenser/
evaporator pipe Indoor 1
Temperature display of indoor condenser/
evaporator pipe Indoor 2
P9
Meaning of error code and detection method
Abnormality of pipe temperature thermistor / Condenser-Evaporator (TH5)
1 The unit is in three-minute resume pro-
tection mode if short/open of thermistor
is detected. Abnormal if the unit does
not get back to normal within three minutes. (The unit returns to normal operation, if it has normally reset.)
2 Constantly detected during cooling, dry-
ing, and heating operation (except
defrosting)
Short: 90: or more
Open: -40: or less
1 Defective thermistor
2 Contact failure of connector
3 Breaking of wire or contact
4 Temperature of thermistor is
5 Defective indoor controller
Cause
characteristics
(CN29) on the indoor controller
board. (Insert failure)
failure of thermistor wiring.
90: or more or -40: or less
caused by defective refrigerant
circuit.
board.
Countermeasure
1–3 Check resistance value of thermistor.
For characteristics, refer to (P1) above.
2 Check contact failure of connector (CN29)
on the indoor controller board.
Refer to 9-6-2.
Turn the power on and check restart after
inserting connector again.
4 Operate in test run mode and check pipe
<condenser / evaporator> temperature with
outdoor controller circuit board. If pipe
<condenser / evaporator> temperature is
exclusively low (in cooling mode) or high (in
heating mode), refrigerant circuit may have
defective.
5 Operate in test run mode and check pipe
<condenser / evaporator> temperature with
outdoor control circuit board. If there is
exclusive difference with actual pipe
<condenser / evaporator> temperature
replace indoor controller board.
There is no abnormality if none of above
comes within the unit.
Turn the power off and on again to operate.
In case of checking pipe temperature
with outdoor controller circuit board,
be sure to connect A-control service
(
tool (PAC-SK52ST).
)
Remote controller signal receiving error
1 Abnormal if indoor controller board can
not receive normally any data from
remote controller or from other indoor
controller board for three minutes.
2 Indoor control board cannot receive any
signal from remote controller for two
E4
E5
E6
E7
minutes.
Remote controller transmitting error
1 Abnormal if indoor controller board cannot
check the blank of transmission path for
three minutes.
2 Abnormal if indoor controller board cannot
finish transmitting 30 times consecutively.
Indoor/outdoor unit communication
error (Signal receiving error)
1 Abnormal if indoor controller board
cannot receive any signal normally for
six minutes after putting the power on.
2 Abnormal if indoor controller board
cannot receive any signal normally for
three minutes.
3 Consider the unit abnormal under the
following condition: When two or more
indoor units are connected to one
outdoor unit, indoor controller board
cannot receive a signal for three minutes
from outdoor controller circuit board, a
signal which allows outdoor controller
circuit board to transmit signals.
Indoor/outdoor unit communication
error (Transmitting error)
Abnormal if “1” receiving is detected 30
times continuously though indoor controller
board has transmitted “0”.
1 Contact failure at transmission
wire of remote controller
2 All remote controllers are set
as “sub” remote controller. In
this case, E0 is displayed on
remote controller, and E4 is
displayed at LED (LED1, LED2)
on the outdoor controller circuit
board.
3 Defective transmitting receiving
circuit of remote controller
4 Defective transmitting receiving
circuit of indoor controller board.
5 Noise has entered into the
transmission wire of remote
controller.
1 Defective transmitting receiving
circuit of indoor controller board.
2 Noise has entered into the
transmission wire of remote
controller.
1 Contact failure, short circuit or,
mis-wiring (converse wiring) of
indoor/outdoor unit connecting
wire
2 Defective transmitting receiving
circuit of indoor controller board
3 Defective transmitting receiving
circuit of indoor controller board
4 Noise has entered into indoor/
outdoor unit connecting wire.
1 Defective transmitting receiving
circuit of indoor controller board
2 Noise has entered into power
supply.
3 Noise has entered into outdoor
control wire.
59
1 Check disconnection or looseness of indoor
unit or transmission wire of remote controller.
2 Set one of the remote controllers “main”.
If there is no problem with the action above.
3 Diagnose remote controllers.
a) When “RC OK” is displayed,
Remote controllers have no problem.
Put the power off, and on again to check.
If abnormality generates again, replace
indoor controller board.
b) When “RC NG” is displayed,
Replace remote controller.
c) When “RC E3” is displayed,
d) When “ERC 00-06” is displayed,
[ c),d)➜Noise may be causing abnormality. ]
✽ If the unit is not normal after replacing
indoor controller board in group control,
indoor controller board of address “0”
may be abnormal.
12 Turn the power off, and on again to
check. If abnormality generates again,
replace indoor controller board.
✽ Check LED display on the outdoor control
circuit board. (Connect A-control service tool,
PAC-SK52ST.)
Refer to EA-EC item if LED displays EA-EC.
1 Check disconnection or looseness of indoor/
outdoor unit connecting wire of indoor unit or
outdoor unit.
Check all the units in case of twin triple
indoor unit system.
2-4 Turn the power off, and on again to
check. If abnormality generates again,
replace indoor controller board or outdoor
controller circuit board.
✽ Other indoor controller board may have
defective in case of twin triple indoor unit
system.
1-3 Turn the power off, and on again to
check. If abnormality generates again,
replace indoor controller board.
9-3. TROUBLESHOOTING BY INFERIOR PHENOMENA
Note: Refer to the manual of outdoor unit for the detail of remote
controller.
Phenomena
(1)LED2 on indoor controller board
is off.
• When LED1 on indoor controller board is also off.
1 Power supply of 220~240V is not supplied to outdoor
unit.
2 Defective outdoor controller circuit board.
3 Power supply of 220~240V is not supplied to indoor
unit.
4 Defective indoor power board.
5 Defective indoor controller board.
Cause
Countermeasure
1 Check the voltage of outdoor power
supply terminal block (L, N)
• When AC 220~240V is not detected.
Check the power wiring to outdoor unit
and the breaker.
• When AC 220~240V is detected.
—Check 2 (below).
2 Check the voltage between outdoor
terminal block S1 and S2.
• When AC 220~240V is not detected.
Check the fuse on outdoor controller
circuit board (10A).
Check the wiring connection.
• When AC 220~240V is detected.
—Check 3 (below).
3 Check the voltage between indoor terminal
block S1 and S2.
• When AC 220~240V is not detected.
Check indoor/outdoor unit connecting
wire for mis-wiring.
• When AC 220~240V is detected.
—Check 4 (below).
4 Check voltage output from CN2S on indoor
power board (DC14V). Refer to 9-6-1.
• When no voltage is output.
Check the fuse on indoor power board.
Check the wiring connection.
• When output voltage is between 12V
and 16V.
—Check 5 (below).
5 Check the wiring connection between
indoor controller board and indoor power
board. If no problems are found, indoor
controller board is defective.
(2)LED2 on indoor controller board
is blinking.
(3)Upward/downward vane
performance failure
• When LED1 on indoor controller board is lit.
1 Mis-setting of refrigerant address for outdoor unit
(There is no unit corresponding to refrigerant
address “0”.)
• When LED1 on indoor controller board is also blinking.
Connection failure of indoor/outdoor unit connecting
wire
• When LED1 is lit.
Mis-wiring of remote controller wires
Under twin triple indoor unit system, 2 or more indoor
units are wired together.
1 Refrigerant address for outdoor unit is wrong or not
set.
Under grouping control system, there are some units
whose refrigerant address is 0.
2 Short-cut of remote controller wires
3 Defective remote controller
1 The vane is not downward during defrosting and
heat preparation and when the thermostat is OFF in
HEAT mode. (Working of COOL protection function)
2 Vane motor does not rotate.
• Defective vane motor
• Breaking of wire or connection failure of connector
3 Upward/downward vane does not work.
• The vane is set to fixed position.
1 Reconfirm the setting of refrigerant
address for outdoor unit
Set the refrigerant address to “0”.
(For grouping control system under
which 2 or more outdoor units are
connected, set one of the units to “0”.)
Set refrigerant address using SW1 (2-6)
on outdoor controller circuit board.
Check indoor/outdoor unit connecting wire
for connection failure. Check the connection
of remote controller wires in case of twin
triple indoor unit system. When 2 or more
indoor units are wired in one refrigerant
system, connect remote controller wires to
one of those units.
1 Check the setting of refrigerant address
in case of grouping control system.
If there are some units whose refrigerant
addresses are 0 in one group, set one of
the units to 0 using SW1 (2-6) on outdoor
controller circuit board.
23 Remove remote controller wires and
check LED2 on indoor controller board.
• When LED2 is blinking, check the
short-cut of remote controller wires.
• When LED2 is lit, connect remote
controller wires again and:
if LED2 is blinking, remote controller
is defective; if LED2 is lit, connection
failure of remote controller terminal
block etc. has returned to normal.
1 Normal operation (The vane is set to hor-
izontal regardless of remote control.)
2 Check 2 (left).
• Check the vane motor. (Refer to “How
to check the parts”.)
• Check for breaking of wire or connection failure of connector.
3 Normal operation (Each connector on
vane motor side is disconnected.)
60
9-4. When wired remote controller or indoor unit micro computer troubles
1. If there is not any other wrong when trouble occurs, emergency operation starts as the indoor controller board switch (SWE)
is set to ON.
During the emergency operation the indoor unit is as follows;
(1) Indoor fan high speed operation(2) Drain-up machine operation
2. When emergency operating for COOL or HEAT, setting of the switch (SWE) in the indoor controller board and outdoor unit
emergency operation are necessary.
3. Check items and notices as the emergency operation
(1) Emergency operation cannot be used as follows;
• When the outdoor unit is something wrong.
• When the indoor fan is something wrong.
• When drain over flow protected operation is detected during self-diagnosis. (Error code : P5)
(2) Emergency operation will be serial operation by the power supply ON/OFF.
ON/OFF or temperature, etc. adjustment is not operated by the remote controller.
(3) Do not operate for a long time as cold air is blown when the outdoor unit starts defrosting operation during heat emer-
gency operation.
(4) Cool emergency operation must be within 10 hours at most. It may cause heat exchanger frosting in the indoor unit.
(5) After completing the emergency operation, return the switch setting, etc. in former state.
(6) Since vane does not work at emergency operation, position the vane manually and slowly.
61
9-5. HOW TO CHECK THE PARTS
1
1
2
2
3
3
Red
White
Black
Relay connector
Protector
1
2
Gray
Gray
4
5
2
361
Orange
Red
Pink
Yellow Brown Blue
M
4
2
5
31
Pink
Orange
Red
Yellow Blue
M
OFF:130i5:
ON :80i20:
Parts nameCheck points
Disconnect the connector then measure the resistance using a tester.
(Surrounding temperature 10:~30:)
Refer to the next page for the details.
Room temperature
thermistor (TH1)
Pipe temperature
thermistor (TH2)
Condenser/evaporator
temperature thermistor
(TH5)
Normal
4.3k"~9.6k"
Abnormal
Open or short
Measure the resistance between the terminals using a tester.
(Winding temperature 20:)
Measure the resistance between the terminals using a tester.
(Winding temperature 20:)
9-6-1. Power board
PCA-RP2GA
PCA-RP2.5GA
PCA-RP3GA
PCA-RP4GA
PCA-RP5GA
PCA-RP6GA
30
1
–
+
20
Resistance (K")
10
0
-20 -10 0 10 20 30 40 50
CN2S
Connect to the indoor controller
board (CN2D)
}
(12~16V DC)
Temperature (:)
CN02
Connect to the indoor
controller board (CN03)
Between 1 and 2 0~24V DC
(Indoor/Outdoor transmission)
Between 2 and 3 220~240V AC
+
}
–
–
+
}
CN01
Connect to the Terminal Block (TB4)
(Indoor/outdoor connecting line)
Between 1 and 2 220~240V AC
Between 2 and 3 0~24V DC
(Indoor/outdoor transmission)
CN03
Connect to the indoor
power board (CN02)
Between 1 to 3 220~240V AC
Between 3 to 5 0~24V DC
(Indoor/outdoor transmission)
}
–
CN32
Connector
(Remote switch)
CN90
Connect to the wireless
remote controller board
(CNB)
CN2D
Connect to the indoor
power board (CN2S)
12~16V DC
}
–
+
CN22
Connect to the terminal block(TB5)
(Remote controller connecting wire)
(10~16V DC)
}
+
–
CN21
Pipe temperature
thermistor/Liquid (TH2)
CN20
Room temperature
thermistor (TH1)
CN2L
Connector (LOSSNAY)
CN41
Connector (HA terminal-A)
CN31
Drain sensor (DS)
CN29
Condenser/evaporator
temperature thermistor (TH5)
+
CN25
}
Humidifier output
–
(12~16V DC)
FAN
Fan motor output (MF)
Between 1 to 5 100~240V AC
+
CN27
}
Drain-up machine
–
output (DP)
(12~16V DC)
Jumper wire J41, J42
Pair number setting with
wireless remote controller
Jumper wire J11~J15
Model setting
Jumper wire J21~J24
Capacity setting
SWE
Emergency operation
64
9-7. FUNCTIONS OF JUMPER WIRE
J11~J15
(SW1)
Open/short of jumper wire
Functions
Jumper wire
Model
settings
Capacity
settings
Models : PCA-RP2~6
Remarks
J11 J12 J13 J14 J15
Models
RP2
RP2.5
RP3
RP4
RP5
RP6
J21 J22 J23 J24
J21~J24
(SW2)
(Marks in the table below) Jumper wire ( : Short : Open)
DIP switch ( : ON : OFF)
Each function is controlled by the jumper wire on control p.c. board. For service parts, J11- J15 and J21-J24, DIP switches
(SW1 and SW2) are equipped with jumper wire.
65
10
slide
Intake grill
Intake grill
Holding knobs
Hinges
Pull out the intake grill
Electrical cover
Screw(electrical cover)
Screw(electrical box)
Slide to the left
Beam
Clamp
DISASSEMBLY PROCEDURE
PCA-RP3GA
OPERATING PROCEDUREPHOTOS&ILLUSTRATIONS
1. Removing the air intake grille
(1) Slide the intake grille holding knobs (at two locations)
backward to open the intake grill.
(2) When the intake grille left open, push the stoppers on the
rear hinges (at two locations) to pull out the intake grille.
2. Removing the electrical box
(1) Remove the air intake grille.
(2) Remove the screw from the beam and remove the beam.
(3) Remove the screws from the electrical cover, and
remove the electrical cover.
(4) Disconnect CN6V and CN21.
(5) Remove the screws from the electrical box and pull out
the electrical box.
Figure 1
Figure 2
<Electrical parts in the electrical box>
Terminal block (for indoor / outdoor connecting line)
Terminal block (for remote controller)
Fan motor capacitor
Indoor control board
66
Photo 1
Power board
Fan motor
capacitor
Indoor
control
board
Terminal
block
(Indoor / outdoor
connecting line)
Terminal
block
(remote control)
OPERATING PROCEDUREPHOTOS&ILLUSTRATIONS
Screw
Side panel
Sliding the panel
to the front
3. Removing the fan motor
(1) Remove the intake grille.
(2) Disconnect the fan motor connector.
(3) Unscrew screws for removing the motor guard.
(4) Unscrew screws for removing the fan guard.
(5) Remove the screw for removing the motor support at both
left and right side.
(6) Loosen the set screws at the fan motor side of the con-
necting joint.
(7) Slide the fan motor to the left side and pull it out.
4. Removing the sirocco fan
(1) Remove the air intake grille.
(2) Remove 1 beam.
(3) Unscrew screws for removing the motor guard.
(4) Unscrew screws for removing the fan guard.
(5) Remove the lower casing while pressing the stoppers at
upper side of the casing.
(6) Loosen the set screws at the connecting joint.
(7) Remove the sirocco fan and shaft together by sliding the
shaft to the left.
Photo 2
Photo 3
Screws
Motor support
Motor guard
Motor guard
Motor
Set screws
Connecting joint
Fan guard
(Note)
Make sure that the upper side casing is snapped to the fan
plate securely with catch.
5. Removing the side panel
(1) Remove the air intake grille.
(2) Remove the screw from the side panel, and remove the
side panel by sliding the panel to the front.
Figure 3
Motor
Sirocco fan
Connecting joint
Casing
Bearing
67
OPERATING PROCEDUREPHOTOS
6. Removing the vane motor
(1) Remove the air intake grille.
(2) Remove the left side panel.
(3) Remove the relay connector of vane motor.
(4) Remove the electrical box.
(5) Remove the screws of vane motor, then remove vane
motor.
(Note)
Connect the lead wires and connectors properly and place
them in the proper position so that the wires are not pinched
by other parts.
Photo 4
Left side
panel
Photo 5
Screw
Check
panel
Relay connector of
the pipe thermistor
7. Removing the Indoor coil thermistor
(1) Remove the air intake grille.
(2) Remove the right side panel.
(3) Remove the relay connector of the pipe thermistor.
(4) Remove the screw, and remove the check panel.
(5) Extract the indoor coil thermistor from the holder.
<Caution for the installation>
There is a possibility for the short circuit when connector gets
wet by water through the thermistor lead wire.
Therefore, lead wire of the indoor coil thermistor should be
tied as shown in the photo 5.
8. Removing the Under panel
(1) Remove the air intake grille.
(2) Remove the beam.
(3) Remove the side panel (right and left).
(4) Unscrew the screws of the under panel, then remove the
under panel.
w Weight of the under panel : approx. 2kg.
HoldIndoor coil thermistorTie up
Photo 6
Relay connector of
the vane motor
Photo 7
Screw
Screw
Vane motor
68
Under panel
OPERATING PROCEDUREPHOTOS
9. Removing the drain pan
(1) Remove the air intake grille.
(2) Remove the beam.
(3) Remove the side panel (right and left).
(4) Remove the under panel. Remove the screws of the right
and left side drain pan.
(5) Remove the insulation in centre of the drain pan, and
after removing the screw, remove the drain pan.
(Note)
Please aware that there might be drain left in the drain pan
when you remove the drain pump (option).
10. Removing the guide vane
(1) Remove the intake grille.
(2) Remove the beam.
(3) Remove the side panel (right and left).
(4) Remove the under panel.
(5) Remove the drain pan.
(6) Remove the screw from the guide vane, then remove the
guide vane.
Photo 8
Screw
Photo 9
Drain pan
Screw
(Insulation)
Screw
11. Removing the Auto vane
(1) Remove the intake grille.
(2) Remove the left side panel.
(3) Remove the left side box.
(4) Remove the under panel.
(5) Remove the screw from the auto vane.
(6) Slide the auto vane to the right side and pull the auto
vane out.
Drain pan
Photo 10
Guide vane
Auto vane
Screw
Screw
69
OPERATING PROCEDUREPHOTOS
12. Removing the heat exchanger.
(1) Remove the air intake grille.
(2) Remove the beam.
(3) Remove the side panel (right and left).
(4) Disconnect the relay connector.
(5) Remove the under panel.
(6) Remove the drain pan.
(7) Unscrew the screw of the pipe cover, and remove the
pipe cover.
(8) Unscrew the screw of the pipe support, and remove the
pipe support.
(9) Unscrew the screw of the heat exchanger, and remove
the heat exchanger.
Remove the heat exchanger with care. Since this is quite
heavy, removing work should be done with more than 2
people.
wWeight of heat exchanger : approx. 5.3kg
Photo 11
Pipe
support
Screws
Pipe cover
Screws
Heat
exchanger
70
11
No.
Parts No.Parts NameSpecifications
2.5GA
3GA
4GA
Wiring
Diagram
Symbol
Recommended
Q'ty
Unit
Amount
PCA-RP
Price
1
2
3
4
5
6
7
8
9
10
2GA
Remarks
(Drawing No.)
5GA
6GA
Q,ty/set
R01 30L 255
T7W 39J 255
R01 A13 255
R01 E00 239
T7W E36 310
T7W E13 716
T7W 512 716
—
T7W E01 313
—
—
—
T7W A00 305
T7W E06 713
CAPACITOR
CAPACITOR
CAPACITOR
FUSE
INDOOR CONTROLLER BOARD
TERMINAL BLOCK
TERMINAL BLOCK
CONTROL BOX
POWER BOARD
CONTROL COVER
CONTROL COVER
CONTROL COVER
REMOTE CONTROLLER CORD
REMOTE CONTROLLER
3= 440V
4
= 440V
6
= 440V
250V 4A
3P(S1,S2,S3)
2P(1,2)
PAR-20MAA
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
(BG00N015G25)
(BG02A804G20)
(BG02A804G21)
(BG02A804G22)
C1
C1
C1
I.B
TB4
TB5
P.B
PAR-20MAA
ON/OFF
CENTRALLY CONTROLLED
ERROR CODE
CLOCK
ON OFF
˚C
CHECK
CHECK MODE
FILTER
TEST RUN
FUNCTION
˚C
1Hr.
NOT AVAILABLE
STAND BY
DEFROST
FILTER
CHECK TEST
TEMP.
TIMER SET
PARTS LIST
ELECTRICAL PARTS
PCA-RP2GA
PCA-RP2.5GA
PCA-RP3GA
PCA-RP4GA
PCA-RP5GA
PCA-RP6GA
S.PLATE-L
L.L FILTER
GRILLE HINGE
GRILLE ASSY
GRILLE ASSY
GRILLE CATCH
L.L FILTER
REAR SUPPORT
UNDER PANEL
BEAM(GA)
W.BOARD CASE
S.PLATE-R
RIGHT LEG (R)
SERVICE PANEL
RIGHT SIDE PANEL
RIGHT SIDE BOX
G.V ASSY-6R
VANE SUPPORT
FRONT PANEL
AUTO VANE
G.V ASSY-6L
REAR PANEL
LEFT SIDE BOX
VANE MOTOR
LEFT LEG (L)
LEFT SIDE PANEL
JOINT SOCKET
Q,ty/set
PCA-RP2GA
1
2
3
4
5
20212223242526
19
18
17
16
15
Part number that is circled is not shown in the figure.
LEFT SIDE PANEL
LEFT SIDE PANEL
LEFT LEG
S.PLATE-L
S.PLATE-L
REAR PANEL
REAR PANEL
GRILLE HINGE
GRILLE CATCH
GRILLE ASSY
L.L FILTER
UNDER PANEL
W.BOARD CASE
REAR SUPPORT
BEAM (GA)
S.PLATE-R
S.PLATE-R
RIGHT SIDE PANEL
RIGHT SIDE PANEL
RIGHT LEG
SERVICE PANEL
SERVICE PANEL
RIGHT SIDE BOX
RIGHT SIDE BOX
FRONT PANEL
FRONT PANEL
AUTO VANE
AUTO VANE
VANE SUPPORT
VANE SUPPORT
G.V ASSY-6R
G.V ASSY-6C
G.V ASSY-6L
LEFT SIDE BOX
LEFT SIDE BOX
VANE MOTOR
VANE MOTOR
JOINT SOCKET
Q,ty/set
PCA-RP2.5GA
PCA-RP3GA
PCA-RP4GA
Part number that is circled is not show in the figure.
LEFT SIDE PANEL
S.PLATE-L
REAR PANEL
L.L FILTER
GRILLE HINGE
GRILLE ASSY
GRILLE CATCH
GRILLE ASSY
L.L FILTER
UNDER PANEL
W.BOARD CASE
REAR SUPPORT
BEAM(GA)
RIGHT SIDE PANEL
RIGHT LEG
SERVICE PANEL
RIGHT SIDE BOX
S.PLATE-R
FRONT PANEL
AUTO VANE
G.V ASSY-5R
G.V ASSY-5C
VANE SUPPORT
G.V ASSY-5L
LEFT SIDE BOX
VANE MOTOR
LEFT LEG
JOINT SOCKET
PCA-RP5GA
PCA-RP6GA
Q,ty/set
PCA-RP5GA
PCA-RP6GA
1
27
262524
23
22
21
2
3
4
5
6
7
Part number that is circled is not shown in the figure.
8
9
74
11
12
10
13
20
19
18
17
16
15
14
FAN AND HEATER PARTS
PCA-RP2GA
2
3
4
14
1
13
5
6
7
8
9
Part number that is circled is not shown in the figure.
Parts No.Parts NameSpecifications
No.
R01 17J 130
1
T7W B06 110
2
R01 17J 114
3
T7W 19J 675
4
R01 E26 202
5
R01 43E 126
6
T7W 23J 762
7
R01 17J 524
8
T7W 17J 675
9
R01 A14 529
10
T7W 18J 675
11
R01 17J 202
12
T7W E08 202
13
T7W E51 480
14
T7W E00 072
15
MOTOR LEG
CASING
SIROCCO FAN
FAN GUARD
ROOM TEMPERATURE THERMISTOR
PIECE (MOTOR)
FAN MOTOR
DRAIN PLUG
FAN GUARD
DRAIN PAN ASSY
FAN GUARD
LIQUID PIPE TEMPERATURE THERMISTOR
CONDENSER / EVAPORTOR TEMPERATURE THERMISTOR
MOTOR LEG
MOTOR LEG
PIECE(MOTOR)
FAN MOTOR
FAN MOTOR
FAN JOINT
SIROCCO FAN
SIROCCO FAN
FAN GUARD
FAN GUARD
ROOM TEMPERATURE THERMISTOR
SHAFT
FAN GUARD
FAN GUARD
SLEEVE BEARING
BEARING SUPPORT
BEARING SUPPORT
DRAIN PLUG
DRAIN PAN ASSY
DRAIN PAN ASSY
FAN GUARD
FAN GUARD
CASING
CASING
SIROCCO FAN
SIROCCO FAN
LIQUID PIPE TEMPERATURE THERMISTOR
CONDENSER / EVAPORTOR TEMPERATURE THERMISTOR
HEAT EXCHANGER
HEAT EXCHANGER
DRAIN HOSE COVER
Q,ty/set
PCA-RP2.5GA
PCA-RP3GA
PCA-RP4GA
1
19
2
3
4
5
6
7
Part number that is circled is not shown in the figure.
8
9
10
11
76
16
15
14
13
12
17
18
FAN AND HEATER PARTS
PCA-RP5GA
PCA-RP6GA
3
4
5
6
2
1
21
20
7
8
9
10
11
12
13
Part number that is circled is not shown in the figure.
Parts No.
No.
1
R01 29J 100
2
R01 41J 130
3
R01 43E 126
4
R01 41J 114
5
R01 E26 202
6
T7W 26J 675
7
T7W 25J 675
8
T7W 43J 762
9
R01 35J 114
10
R01 A17 529
11
R01 700 116
12
T7W 23J 675
13
R01 39J 114
14
R01 17J 524
15
T7W 24J 675
16
T7W B07 110
17
R01 E00 103
18
R01 35J 145
19
R01 17J 202
20
T7W E08 202
T7W E53 480
21
T7W E54 480
22
T7W E00 072
Parts Name
SHAFT
MOTOR LEG
PIECE (MOTOR)
SIROCCO FAN
ROOM TEMPERATURE THERMISTOR
FAN GUARD
FAN GUARD
FAN MOTOR
SIROCCO FAN
DRAIN PAN ASSY
FAN JOINT
FAN GUARD
SIROCCO FAN
DRAIN PLUG
FAN GUARD
CASING
SLEEVE BEARING
BEARING SUPPORT
LIQUID PIPE TEMPERATURE THERMISTOR
CONDENSER / EVAPORTOR TEMPERATURE THERMISTOR
HEAT EXCHANGER
HEAT EXCHANGER
DRAIN HOSE COVER
Specifications
2pcs/set
D10B4P150MS
15
14
Q,ty/set
PCA-RP
5GA6GA
1
1
1
1
1
1
1
1
2
1
1
2
1
1
1
4
1
1
1
1
1
1
16
1
1
1
1
1
1
1
1
2
1
1
2
1
1
1
4
1
1
1
1
1
1
17·18
Remarks
(Drawing No.)
19
Wiring
Diagram
Symbol
TH1
MF
TH2
TH5
Recom-
mended
Q'ty
Unit
Price
Amount
77
12
28˚C
26
˚C
8:00
Normal
operation
23:00
Setback
operation
8:00
Normal
operation
OPTIONAL PARTS
12-1. TIMER
Part No.
Model Name
12-1-1. Program timer specifications
Part name
Parts No.
Exterior dimensions (inch)
Installation
Type of clock
Clock accuracy
Display-Time
-Week
-Timer setting unit
Program cycle
Timer setting unit
No. of set points
Power rating
PAC-SC32PTA (with set back function)
Program timer
Program timer
PAC-SC32PTA
5-4/32
✕4-23/32✕23/32 (130✕120✕18mm)
Wall mount
Quartz
+
_
50 second / month at 25:
Liquid crystal display
Liquid crystal display
Liquid crystal display
24 hours
30 minutes
48 / day
+
5V DC 5% (Supplied by Remote Controller)
_
12-1-2. Feature of program timer
(1) Daily timer function
Daily timer can be set in 30 minutes units for up to 24 hours.
Each unit can be set for unit ON, unit OFF, or setback operation.
(2) Setback operation
Set back operation is useful for reducing running costs
e.g. At a hotel with a 24-hour system
8:00~23:00 Cooling operation with set temperature at 26°C
23:00~8:00 Setback operation with 2 degrees of setback
As shown in the chart on the right, the set temperature rises 2 degrees
automatically during the setback operation. When the setback operation
ends, normal operation will begin.
(3) Weekly timer function
Daily timer function can apply to each day of the week.
78
12-1-3. How to connect program timer
SET/MONITOR
SET
SMTWT F S
MONITOR
PROERAN TIMER
PAC-SC32PTA
TODAY
ON
WEEKLY
SETTING
OFF
ON
SET BACK
OFF
CLOCKDAILY TIMER
SET BACK
SET BACK
DAILY
SETTING
12 15 18 21 24
0361215
(1) Install the program timer next to the remote controller the same way as the remote controller is installed.
(2) Connect the program timer and the remote controller with a 5-wire cable as shown in the figure below
Connect to indoor unit
with 2-wire cable.
FILTER
CHECK MODE
TEST RUN
4
SET
MONITOR
SET/MONITOR
PROERAN TIMER
PAC-SC32PTA
SMTWTF S
WEEKLY
TODAY
SETTING
ON
CLOCKDAILY TIMER
OFF
SET BACK
0361215
12 15 18 21 24
SET BACK
DAILY
ON
SETTING
SET BACK
OFF
NOTE:While the program timer is connected to the remote controller, the
24hour ON/OFF timer on the remote controller will not operate.
Connect to CN1Connect to CN1
Use 5-wire cable
12-1-4. Names and functions
<PAC-SC32PTA>
WEEKLY TIMER SETTING DISPLAY
Used for selection of if or not the day operation pattern set by PATTERN SETTING is to
be applied in weekly day unit,
setting.
SET/MONITOR DISPLAY
During SET is display, clock adjustment,
change of weekly day, daily and weekly timer
setting can be performed.
During MONITOR is display, all switches
except SET/MONITOR SW are invalidated.
This is normal status.
WEEK DAY SETTING SW
Used for week day setting.
CURRENT TIME DISPLAY
During MONITOR status,current
time is display.
During Daily timer setting, a
time desire for timer setting is
displayed.
SET BACK DISPLAY
Indicates the setting set
back range.
DAILY TIMER SETTING DISPLAY
24 hours is divided into 48 blocks and each
block express 30 minutes.
The block display consists of 3 pattern.
Set back can be done in the range of 1,2,4,6
and 8°C.
SET BACK SETTING SW
Used for set back setting.
ON/SET BACK/OFF SW
Used to specify the time setting pattern.
DAILY TIMER SW
Used for timer setting in 30 minutes unit.
MODE SELECTOR SW
Using this switch select “MONITOR” or “SET”
Mode.
“MONITOR” :Indicates the current timer set-
“SET”: Set to “SET” mode for clock adjust-
ting. All switch expect MODE
SELECTOR SW are invalidated
then.This is the normal status.
ment, charge of week day, daily and
weekly timer setting.
CLOCK ADJUSTMENT SW
Used for adjustment of the current time.
Push SW to advance the time. Each time the button is
pushed the time advance by 1 minute, pushing continuously
advances by 1 minute at 0.5 second interval, and when the
lower digit of minute becomes 0 indication advances in 10 minutes unit.
SW is used for reversing the time. Each time the button is
pushed the time reverses by 1 minute, pushing continuously
reverses the time by 1 minute at 0.5 second interval, and when
the lower digit of minute becomes 0 indication reverses in 10
minutes unit.
79
WEEKLY TIMER SW
Used for setting timer in day of week unit.
Pushing SW moves the week day light
display in order of
S → M → T → W
enabling to set the week day.