Mitsubishi Electric PCA-RP50GA User manual

SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS
No. OC328
REVISED EDITION-A
NOTE:
• This manual describes only
service data of the indoor
units.
• RoHS compliant products
have <G> mark on the
spec name plate.
•For servicing of RoHS
compliant products, refer
to the RoHS Parts List.
INDOOR UNIT
REMOTE CONTROLLER
CONTENTS
1. REFERENCE MANUAL ······································2
2. SAFETY PRECAUTION···································3
3. PART NAMES AND FUNCTIONS ···················7
4. SPECIFICATIONS············································9
5. NOISE CRITERION CURVES························13
6. OUTLINES AND DIMENSIONS·····················15
7. WIRING DIAGRAM ············································19
8. REFRIGERANT SYSTEM DIAGRAM ··················20
9. TROUBLESHOOTING ···································21
10. DISASSEMBLY PROCEDURE ······················33
11. PARTS LIST ···················································38
12. RoHS PARTS LIST ········································47
ON/OFF
TEMP.
Indoor unit
[Model names] [Service Ref.]
PCA-RP50GA PCA-RP50GA
PCA-RP50GA2 PCA-RP50GA2
PCA-RP60GA PCA-RP60GA
PCA-RP71GA PCA-RP71GA
PCA-RP100GA PCA-RP100GA
PCA-RP125GA PCA-RP125GA
PCA-RP140GA PCA-RP140GA
Model name
indication
PCH-P50GAH PCH-P50GAH
PCH-P60GAH PCH-P60GAH
PCH-P71GAH PCH-P71GAH
PCH-P100GAH PCH-P100GAH
PCH-P125GAH PCH-P125GAH
PCH-P140GAH PCH-P140GAH
June 2006
Revision :
• PCA-RP50GA2 is added in
REVISED EDITION-A.
•RoHS PARTS LIST added.
• Some descriptions have
been modified.
• Please void OC328
OC328A--1.qxp 06.6.28 9:55 AM Page 1

2
1REFERENCE MANUAL
Service Ref.
PUHZ-RP35/50/60/71/100/125/140VHA(1)
PUHZ-RP100/125/140YHA(1)
PUHZ-RP71/100/125/140VHA(1)-A
PUHZ-RP200/250YHA(1)
PUHZ-RP200/250YHA(1)-A
PU(H)-P·VGAA.UK
PU(H)-P·YGAA.UK
SUZ-KA·VA.TH
SUZ-KA50/60/71VA.TH
SUZ-KA50/60/71VA.TH-A
Service Manual No.
OC334
OC337
OC338
OC339
OC336
PUHZ-RP35/50/60/71/100/125/140VHA2
PUHZ-RP100/125/140/YHA2 OC374
PU(H)-P71/100VHA.UK
PU(H)-P71/100/125/140YHA.UK OC379
PUHZ-P100/125/140VHA.UK OC359
OC322
OC323
OC322
1-1. OUTDOOR UNIT’S SERVICE MANUAL
Series (Outdoor unit)
PUHZ-RP·VHA(-A)
PUHZ-RP·YHA(-A)
PU(H)-P·VGAA.UK
PU(H)-P·YGAA.UK
Manual No.
OCS01
OCS02
PUHZ-RP·VHA2
PUHZ-RP·YHA2 OCS05
PUHZ-P·VHA
SUZ-KA·VA
OCS06
PU(H)-P·VHA
PU(H)-P·YHA OCS07
OCS03
1-2. TECHNICAL DATA BOOK
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3
SAFETY PRECAUTION
2
[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.
[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.
Cautions for units utilising refrigerant R407C
CAUTIONS RELATED TO NEW REFRIGERANT
Do not use the existing refrigerant piping.
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 ESTER , 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
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4
[3] Service tools
Use the below service tools as exclusive tools for R407C refrigerant.
No. Tool name Specifications
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.
—
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5
Cautions for units utilising refrigerant R410A
CAUTIONS RELATED TO NEW REFRIGERANT
Use new refrigerant pipes.
Make sure that the inside and outside of refrige-
rant 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 RP100, 125 and 140, be sure to perform replace-
ment 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 refrige-
rant 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 com-
pressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigera-
nt 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 deterio-
ration of refrigerant oil etc.
If dirt, dust or moisture enter into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
If large amount of mineral oil enter, that can cause deterio-
ration 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.
[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.)
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6
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 specifications. (UNF1/2)
·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 R410A Top of cylinder (Pink)
Cylinder with syphon
8Refrigerant recovery equipment
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7
PART NAMES AND FUNCTIONS
3
● Remote controller
Once the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.
● Indoor Unit
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.
● Operation buttons
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
Set Temperature buttons
Down
Up
Timer Menu button
(Monitor/Set button)
Mode button (Return button)
Set Time buttons
Back
Ahead
Timer On/Off button
(Set Day button)
Opening the
door.
ON/OFF button
Fan Speed button
Filter button
(<Enter> button)
Test Run button
Check button (Clear button)
Airflow Up/Down button
Louver button
( Operation button)
To preceding operation
number.
Ventilation button
(Operation button)
To next operation number.
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8
●Display
For purposes of this explanation,
all parts of the display are shown
as lit. During actual operation, only
the relevant items will be lit.
˚F˚C
˚F˚C
ERROR CODE
AFTER
TIMER
TIME SUN MON TUE WED THU FRI SAT
ON
OFF
Hr
AFTER
FILTER
FUNCTION
ONLY1Hr.
WEEKLY
SIMPLE
AUTO OFF
Identifies the current operation
Shows the operating mode, etc.
* Multilanguage display is sup-
ported.
“Centrally Controlled” indicator
Indicates that operation of the re-
mote controller has been prohib-
ited by a master controller.
“Timer Is Off” indicator
Indicates that the timer is off.
Temperature Setting
Shows the target temperature.
Day-of-Week
Shows the current day of the week.
Time/Timer Display
Shows the current time, unless the simple or Auto Off
timer is set.
If the simple or Auto Off timer is set, shows the time
remaining.
“Sensor” indication
Displayed when the remote controller
sensor is used.
“Locked” indicator
Indicates that remote controller but-
tons have been locked.
“Clean The Filter” indicator
Comes on when it is time to clean the
filter.
Timer indicators
The indicator comes on if the corre-
sponding timer is set.
Up/Down Air Direction indica-
tor
The indicator shows the direc-
tion of the outcoming airflow.
“One Hour Only” indicator
Displayed if the airflow is set to
weak and downward during COOL
or DRY mode. (Operation varies
according to model.)
The indicator goes off after one
hour, at which time the airflow di-
rection also changes.
Room Temperature display
Shows the room temperature.
Louver display
Indicates the action of the swing
louver. Does not appear if the
louver is stationary.
(Power On indicator)
Indicates that the power is on.
Fan Speed indicator
Shows the selected fan speed.
Ventilation indicator
Appears when the unit is running in
Ventilation mode.
Caution
●Only the Power on indicator lights when the unit is stopped and power supplied to the unit.
●If you press a button for a feature that is not installed at the indoor unit, the remote controller will display the “Not Available”
message.
If you are using the remote controller to drive multiple indoor units, this message will appear only if he feature is not
present at the parent unit.
●When power is turned ON for the first time, it is normal that “PLEASE WAIT” is displayed on the room temperature indica-
tion (For max. 2minutes). Please wait until this “PLEASE WAIT” indication disappear then start the operation.
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9
SPECIFICATIONS
4
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input
Running current
Starting current
External finish
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
PCA-RP60GA
Cooling
0.12
0.53
1.27
Heating
0.12
0.53
1.27
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Sirocco fan (direct) x 3
0.070
14-15-16-18(495-530-565-635)
0(direct blow)
Remote controller & built-in
37-39-41-43
26(1)
1,310(51-9/16)
680(26-3/4)
210(8-1/4)
34(75)
Cooling
0.09
0.41
1.20
Heating
0.09
0.41
1.20
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Sirocco fan (direct) x 2
0.054
10-11-12-13(355-390-425-460)
0(direct blow)
Remote controller & built-in
37-38-40-42
26(1)
1,000(39-3/8)
680(26-3/4)
210(8-1/4)
27(60)
PCA-RP50GA
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input
Running current
Starting current
External finish
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
Cooling
0.12
0.53
1.27
Heating
0.12
0.53
1.27
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Sirocco fan (direct) x 3
0.070
14-15-16-18(495-530-565-635)
0(direct blow)
Remote controller & built-in
37-39-41-43
26(1)
1,310(51-9/16)
680(26-3/4)
210(8-1/4)
34(75)
PCA-RP71GA
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input
Running current
Starting current
External finish
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input
Running current
Starting current
External finish
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
PCA-RP50GA2
Cooling
0.12
0.53
1.27
Heating
0.12
0.53
1.27
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Sirocco fan (direct) x 3
0.070
14-15-16-18(495-530-565-635)
0(direct blow)
Remote controller & built-in
37-39-41-43
26(1)
1,310(51-9/16)
680(26-3/4)
210(8-1/4)
34(75)
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10
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input
Running current
Starting current
External finish
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
PCA-RP100GA
Cooling
0.15
0.69
1.48
Heating
0.15
0.69
1.48
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Sirocco fan (direct) x 3
0.090
20-21-23-25(705-740-810-885)
0(direct blow)
Remote controller & built-in
40-41-43-45
26(1)
1,310(51-9/16)
680(26-3/4)
270(10-5/8)
37(82)
Cooling
0.22
1.01
2.20
Heating
0.22
1.01
2.20
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Sirocco fan (direct) x 4
0.150
27-30-32-34(955-1,060-1,130-1,200)
0(direct blow)
Remote controller & built-in
41-43-45-46
26(1)
1,620(63-3/4)
680(26-3/4)
270(10-5/8)
43(95)
PCA-RP125GA
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input
Running current
Starting current
External finish
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input
Running current
Starting current
External finish
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
PCA-RP140GA
Cooling
0.22
1.01
2.20
Heating
0.22
1.01
2.20
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Sirocco fan (direct) x 4
0.150
27-30-32-34(955-1,060-1,130-1,200)
0(direct blow)
Remote controller & built-in
42-44-46-48
26(1)
1,620(63-3/4)
680(26-3/4)
270(10-5/8)
45(99)
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11
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input w1
Running current w1
Starting current w1
External finish
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Booster heater w1
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
Cooling
0.12
0.53
1.27
Heating
0.12<1.93>
0.53<8.39>
1.27<8.39>
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Sirocco fan (direct) x 3
0.070
14-15-16-18(495-530-565-635)
0(direct blow)
<1.93>
Remote controller & built-in
37-39-41-43
26(1)
1,310(51-9/16)
680(26-3/4)
210(8-1/4)
36(79)
PCH-P60GAH
Cooling
0.09
0.41
1.20
Heating
0.09<1.29>
0.41<5.61>
1.20<5.61>
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Sirocco fan (direct) x 2
0.054
10-11-12-13(355-390-425-460)
0(direct blow)
<1.29>
Remote controller & built-in
37-38-40-42
26(1)
1,000(39-3/8)
680(26-3/4)
210(8-1/4)
28.5(63)
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input w1
Running current w1
Starting current w1
External finish
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Booster heater w1
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
PCH-P50GAH
w1 : < > Shows the only booster heater rating.
Cooling
0.12
0.53
1.27
Heating
0.12<1.93>
0.53<8.39>
1.27<8.39>
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Sirocco fan (direct) x 3
0.070
14-15-16-18(495-530-565-635)
0(direct blow)
<1.93>
Remote controller & built-in
37-39-41-43
26(1)
1,310(51-9/16)
680(26-3/4)
210(8-1/4)
36(79)
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
W
D
H
INDOOR UNIT
PCH-P71GAH
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input w1
Running current w1
Starting current w1
External finish
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Booster heater w1
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
OC328A--1.qxp 06.6.28 9:55 AM Page 11

12
Cooling
0.15
0.69
1.48
Heating
0.15<2.48>
0.69<10.78>
1.48<10.78>
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Sirocco fan (direct) x 3
0.090
20-21-23-25(705-740-810-885)
0(direct blow)
<2.48>
Remote controller & built-in
40-41-43-45
26(1)
1,310(51-9/16)
680(26-3/4)
270(10-5/8)
39.5(87)
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input w1
Running current w1
Starting current w1
External finish
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Booster heater w1
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
PCH-P100GAH
Cooling
0.22
1.01
2.20
Heating
0.22<2.76>
1.01<12.00>
2.20<12.00>
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Sirocco fan (direct) x 4
0.150
27-30-32-34(955-1,060-1,130-1,200)
0(direct blow)
<2.76>
Remote controller & built-in
41-43-45-46
26(1)
1,620(63-3/4)
680(26-3/4)
270(10-5/8)
46(101)
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
W
D
H
INDOOR UNIT
PCH-P125GAH
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input w1
Running current w1
Starting current w1
External finish
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Booster heater w1
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
Cooling
0.22
1.01
2.20
Heating
0.22<2.76>
1.01<12.00>
2.20<12.00>
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Sirocco fan (direct) x 4
0.150
27-30-32-34(955-1,060-1,130-1,200)
0(direct blow)
<2.76>
Remote controller & built-in
42-44-46-48
26(1)
1,620(63-3/4)
680(26-3/4)
270(10-5/8)
48(106)
kW
A
A
kW
K/min(CFM)
Pa(mmAq)
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
W
D
H
INDOOR UNIT
PCH-P140GAH
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input w1
Running current w1
Starting current w1
External finish
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Booster heater w1
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
w1 : < > Shows the only booster heater rating.
OC328A--1.qxp 06.6.28 9:55 AM Page 12

13
NOISE CRITERION CURVES5
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
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-RP50GA
PCH-P50GAH NOTCH
High
Medium1
Medium2
Low
SPL(dB)
42
40
38
37
LINE
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
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-RP50GA2
PCA-RP60GA
PCA-RP71GA
PCH-P60GAH
PCH-P71GAH
NOTCH
High
Medium1
Medium2
Low
SPL(dB)
43
41
39
37
LINE
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
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-RP100GA
PCH-P100GAH NOTCH
High
Medium1
Medium2
Low
SPL(dB)
45
43
41
40
LINE
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
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-RP125GA
PCH-P125GAH NOTCH
High
Medium1
Medium2
Low
SPL(dB)
46
45
43
41
LINE
OC328A--1.qxp 06.6.28 9:55 AM Page 13

14
1m
1m unit
about 1.4m
MICROPHONE
ceiling
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
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-RP140GA
PCH-P140GAH NOTCH
High
Medium1
Medium2
Low
SPL(dB)
48
46
44
42
LINE
OC328A--1.qxp 06.6.28 9:55 AM Page 14

15
INDOOR UNIT
PCA-RP50GA
PCH-P50GAH
180
210
157
15 85
182 liquid
201 gas
241 (Drainage)
Air intake
918
161 90
254
680
506 56
Electrical box
226
70
6
2
7
17
150
140 70
320 80
933 (suspension bolt pitch)
983
1000
Air outlet
81
904
76
525 928 352
263
171
138
86
46 175 1
131
38 38 79
161 32
179
42
6~7
Ceiling
Electrical box [Front view]
When electrical
box is pulled
down
3
2
8
514
[15.88
[9.52
P50
[15.88
[12.7
[6.35
Available pipe size
[9.52
4GAS SIDE
5LIQUID SIDE
RP50
Use the current nuts meeting the pipe size of the outdoor unit.
: Factory flare nut attachment to the heat-exchanger.
NOTES:
1. Use M10 or W3/8 screws for anchor bolt.
2. When optional drain lift-up mechanism is installed, always provide
upward piping for refrigerant piping.
1Drainage pipe connection (26mm I.D.)
2Drainage pipe connection (for the left arrangement)
3Knock out hole for left drain-piping arrangement
4Refrigerant-pipe connection (gas pipe side/flared connection)
5Refrigerant-pipe connection (liquid pipe side/flared connection)
6Knock out hole for upper drain pipe arrangement
7Knock out hole for left drain pipe arrangement
8Knock out hole for wiring arrangement
Unit : mm
6OUTLINES AND DIMENSIONS
OC328A--1.qxp 06.6.28 9:55 AM Page 15

16
PCA-RP50GA2
PCA-RP60GA
PCA-RP71GA
PCH-P60GAH
PCH-P71GAH
161 90
254
680
506 56
1240 (suspension bolt pitch)
140
150
320 80
17
70
6
1290
1214
210 180
81 76
1310
Air outlet
1228
Air intake
85
182
201
241
15
157
(liquid)
(5/8F gas)
(Drainage)
7
2
Electrical box
70
226
3
2
8
514
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
: Factory flare nut attachment to the heat-exchanger.
4GAS SIDE
5LIQUID SIDE
Use the current nuts meeting the pipe size of the outdoor unit.
Available pipe size
RP71,P60,P71 RP60
[6.35
[9.52
[15.88
RP50
[6.35
[9.52
[12.7
[15.88
[9.52
[15.88
NOTES:
1. Use M10 or W3/8 screws for anchor bolt.
2. When optional drain lift-up mechanism is installed, always provide
upward piping for refrigerant piping.
1Drainage pipe connection (26mm I.D.)
2Drainage pipe connection (for the left arrangement)
3Knock out hole for left drain-piping arrangement
4Refrigerant-pipe connection (gas pipe side/flared connection)
5Refrigerant-pipe connection (liquid pipe side/flared connection)
6Knock out hole for upper drain pipe arrangement
7Knock out hole for left drain pipe arrangement
8Knock out hole for wiring arrangement
Unit : mm
OC328A--1.qxp 06.6.28 9:55 AM Page 16

17
161 90
254
680
506 56
1228
Air intake
1214
270
207
81 96
1310
Air outlet
1240 (suspension bolt pitch)
140
150
320 80
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
28514
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
Use the current nuts meeting the pipe size of the outdoor unit.
:Factory flare nut attachment to the heat-exchanger.
4GAS SIDE
5
LIQUID SIDE
Available pipe size
RP100
[9.52
[15.88
[19.05
P100
[9.52
[19.05
PCA-RP100GA
PCH-P100GAH NOTES:
1. Use M10 or W3/8 screws for anchor bolt.
2. When optional drain lift-up mechanism is installed, always provide
upward piping for refrigerant piping.
1Drainage pipe connection (26mm I.D.)
2Drainage pipe connection (for the left arrangement)
3Knock out hole for left drain-piping arrangement
4Refrigerant-pipe connection (gas pipe side/flared connection)
5Refrigerant-pipe connection (liquid pipe side/flared connection)
6Knock out hole for upper drain pipe arrangement
7Knock out hole for left drain pipe arrangement
8Knock out hole for wiring arrangement
Unit : mm
OC328A--1.qxp 06.6.28 9:55 AM Page 17

18
161 90
254
680
506 56
1535
Air intake
1524
270
207
81 96
1620
Air outlet
1547(suspension bolt pitch)
140
150
320 80
18
70
6
87
182
198
245
16
217
(3/8F liquid)
(5/8F, 3/4F gas)
(Drainage)
7
2
Electrical box
70
229
328514
Electrical box
When electrical
box is pulled
down
[ Front view ]
Ceiling
93
160
38 38 140
42 239
6~7
525 1545 687 263
171
138
86
192
236 1
45
:Factory flare nut attachment to the heat-exchanger.
RP125,140
[19.05
[15.88
[9.52
Use the current nuts meeting the pipe size of the outdoor unit.
4GAS SIDE
5LIQUID SIDE
Available pipe size P125,140
[19.05
[9.52
PCA-RP125GA
PCA-RP140GA
PCH-P125GAH
PCH-P140GAH NOTES:
1. Use M10 or W3/8 screws for anchor bolt.
2. When optional drain lift-up mechanism is installed, always provide
upward piping for refrigerant piping.
1Drainage pipe connection (26mm I.D.)
2Drainage pipe connection (for the left arrangement)
3Knock out hole for left drain-piping arrangement
4Refrigerant-pipe connection (gas pipe side/flared connection)
5Refrigerant-pipe connection (liquid pipe side/flared connection)
6Knock out hole for upper drain pipe arrangement
7Knock out hole for left drain pipe arrangement
8Knock out hole for wiring arrangement
Unit : mm
OC328A--1.qxp 06.6.28 9:55 AM Page 18

19
PCA-RP50GA PCA-RP50GA2 PCA-RP60GA
PCA-RP71GA PCA-RP100GA PCA-RP125GA PCA-RP140GA
PCH-P50GAH PCH-P60GAH PCH-P71GAH
PCH-P100GAH PCH-P125GAH PCH-P140GAH
X4 X1
FAN
(
WHT
)1 3 1 3 1 3 1 35
1 2 3
BLK WHT RED
C
MF
DP
X4 X1
BCR
POWER
CNDK
(RED)
D.U.M
CNP
(BLU)
(OPTION)
ZNR
POWER
CND
(ORN)
1
21 2
3
P.B
I.B
CNDK
(RED)
DC13.1V
CN2S
(WHT)
WHT RED YLW ORN BLK
BLK BLK BLK BLK BLU BLU
BRN
ORN
WHT
FUSE
1 2
POWER
CN2D(WHT)
1 3
INDOOR/OUTDOOR
COMMUNICATION
CN3C(BLU)
SWE
ON
OFF
SW2 SW1
Refer to tables 1
and 2 for service PCB.
LED3 LED2 LED1
TO OUTDOOR UNIT
TB4S1
S2
S3
YLW
ORN
ORN
BRN
50~71 TYPE
CN41 CN2L
CN51 CN32
VANE
CN6V
(
GRN
)
MV
6 6
9
MV
6 6
WIRELESS
CN90
(
WHT
)
INTAKE
CN20
(
RED
)
LIQUID
CN21
(
WHT
)
D.SENSOR
CN31
(
WHT
)
CN31
DRAIN SENSOR
DS
PIPE
CN29
(
BLK
)
12123
123
1 2 1 2
TH5TH1 TH2
REMOCON
CN22
(
BLU
)
1 2
2
1
TB5
R.B
TB6
12
TRANSMISSION WIRES DC12V
1 2 1 2
W.B
BZ CNB
RECEIVER
RU LED1 LED2 SW2SW1
100~140 TYPE
MV
5 5
3131
POWER
CND
(ORN)
INDOOR/OUTDOOR
COMMUNICATION
CN3C
(BLU)
TB2
TB4
POWER SUPPLY
~(1PHASE)
230V 50Hz
RED
BLU
YLW
GRN/YLW
ORN
ORN
BRN
TO OUTDOOR UNIT
L
S1
S2
S3
N
I.B
YLW
ORN
W 1 (Fig.1)
(
WHT
)
I.B
HEATER
CN24
(YLW)
26H
RED
61 REDGRY
2
6
5
1
88H
YLW YLW
TB2
POWER SUPPLY
~(1PHASE)
230V 50Hz
88H
FS2
H1 L
REDRED 5 3RED BLU
GRN/YLW
WHT
N
2
1
FS1
PCH-P50~P140GAH
models only
Please set the voltage using the remote
controller.
For the setting method, please refer to
the indoor unit Installation Manual.
SW1
Table 1
Service board
1 2 3 4 5
ON
OFF
MODELS
PCA-RP.GA
PCH-P.GAH
SW2
Table 2
Service board
1 2 3 4 5
ON
OFF
MODELS
PCA-RP50GA
PCH-P50GAH
1 2 3 4 5
ON
OFF
PCA-RP50GA2
PCA-RP60GA
PCH-P60GAH
1 2 3 4 5
ON
OFF
PCA-RP71GA
PCH-P71GAH
Service board
1 2 3 4 5
ON
OFF
MODELS
PCA-RP100GA
PCH-P100GAH
1 2 3 4 5
ON
OFF
PCA-RP125GA
PCH-P125GAH
1 2 3 4 5
ON
OFF
PCA-RP140GA
PCH-P140GAH
P.B INDOOR POWER BOARD
SYMBOL NAME
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.
SWE SWITCH(EMERGENCY OPERATION)
X4 RELAY(FAN MOTOR)
X1 RELAY(DRAIN PUMP)
BCR
POWER SUPPLY(R.B)
LED1 POWER SUPPLY(I.B)
LED2 TRANSMISSION(INDOOR-OUTDOOR)LED3
FAN CONTROL ELEMENT
C CAPACITOR(FAN MOTOR)
FAN MOTOR
VANE MOTOR
MF
MV DRAIN-UP MACHINE (OPTION)
DP DRAIN SENSOR (OPTION)
DS
SYMBOL NAME
TB4
TERMINAL BLOCK(INDOOR/OUTDOOR CONNECTING LINE)
TB2 TERMINAL BLOCK (HEATER) WPCH-P.GAH
models only or option for PCA RP.GA(2) models.
TERMINAL BLOCK(REMOTE CONTROLLER
TRANSMISSION LINE )
ROOM TEMP.THERMISTOR
(0;/15k', 25;/5.4k'DETECT)
PIPE TEMP.THERMISTOR/LIQUID
(0;/15k', 25;/5.4k'DETECT)
COND./EVA.TEMP.THERMISTOR
(0;/15k', 25;/5.4k'DETECT)
TB5,TB6
TH5
TH1
TH2
W.B
WIRELESS REMOTE CONTROLLER BOARD(OPTION)
RECEIVING UNIT
BUZZER
LED(RUN INDICATOR)
LED(HOT ADJUST)
SWITCH(HEATING ON/OFF)
SWITCH(COOLING ON/OFF)
WIRED REMOTE CONTROLLER BOARD
R.B
HEATER
RU
BZ
LED1
LED2
SW1
SW2
NAMESYMBOL
HEATER
H1 HEATER THERMAL SWITCH
26H HEATER CONTACTOR
88H
THERMAL FUSE(
98;10A:50GAH/117;16A:100GAH
110;16A:60,71,125,140GAH)
FS1,2
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 (S1, S2, S3).
3. Make sure that the main power supply of the booster heater is
independent.
4. Symbols used in wiring diagram above are,
: Connector, : Terminal (block).
W 1. When work to supply power separately to
Indoor and Outdoor unit was applied, refer to Fig 1.
W 2. For power supply system of this unit,
refer to the caution label located near this diagram.
[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.
When installing drain-up
machine (Optional part).
W When installing optional
drain-up machine disconnect
the CN31 jumper connector
and replace it with the
drain sensor (DS).
7WIRING DIAGRAM
OC328A--1.qxp 06.6.28 9:55 AM Page 19

20
PCA-RP50GA PCA-RP50GA2 PCA-RP60GA
PCA-RP71GA PCA-RP100GA PCA-RP125GA PCA-RP140GA
PCH-P50GAH PCH-P60GAH PCH-P71GAH
PCH-P100GAH PCH-P125GAH PCH-P140GAH
Unit : mm
Pipe temperature
thermistor/liquid
(TH2)
Distributor
with strainer
#50
Condenser/evaporator
temperature thermistor
(TH5)
Room temperature
thermistor (TH1)
Refrigerant flow in cooling
Refrigerant flow in heating
Strainer
#50
Strainer
#50
Heat exchanger Refrigerant GAS pipe connection
(Flare)
Refrigerant LIQUID pipe connection
(Flare)
8REFRIGERANT SYSTEM DIAGRAM
OC328A--1.qxp 06.6.28 9:55 AM Page 20