Mitsubishi Electric Mr.SLIM PLA-RP35AA User manual

SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS
No. OC335
REVISED EDITION-A
CONTENTS
1. REFERENCE MANUAL ······································2
2. SAFETY PRECAUTION···································2
3. PART NAMES AND FUNCTIONS ···················6
4. SPECIFICATIONS············································9
5. NOISE CRITERION CURVES························14
6. OUTLINES AND DIMENSIONS·····················16
7. WIRING DIAGRAM ············································17
8. REFRIGERANT SYSTEM DIAGRAM ··················18
9. TROUBLESHOOTING ···································19
10. DISASSEMBLY PROCEDURE ······················35
11. PARTS LIST ···················································38
12. RoHS PARTS LIST ········································45
Indoor unit
[Model names] [Service Ref.]
PLA-RP35AA PLA-RP35AA.UK
PLA-RP50AA PLA-RP50AA.UK
PLA-RP60AA PLA-RP60AA.UK
PLA-RP71AA PLA-RP71AA.UK
PLA-RP100AA PLA-RP100AA.UK
PLA-RP125AA PLA-RP125AA.UK
PLA-RP140AA PLA-RP140AA.UK
PLH-P35AAH PLH-P35AAH.UK
PLH-P50AAH PLH-P50AAH.UK
PLH-P60AAH PLH-P60AAH.UK
PLH-P71AAH PLH-P71AAH.UK
PLH-P100AAH PLH-P100AAH.UK
PLH-P125AAH PLH-P125AAH.UK
PLH-P140AAH PLH-P140AAH.UK
July 2006
INDOOR UNIT
WIRED REMOTE
CONTROLLER
WIRELESS REMOTE
CONTROLLER
ON/OFF TEMP
ON/OFF
TEMP.
Model name
indication
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 com-
pliant products, refer to the
RoHS Parts List.
Revision:
• RoHS PARTS LIST is added.
•Some descriptions have
been modified.
•Please void OC335.
OC335A--1.qxp 06.7.12 3:04 PM Page 1

2
1REFERENCE MANUAL
SAFETY PRECAUTION
2
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.
Service Ref.
PUHZ-RP35/50/60/71/100/125/140VHA(1)
PUHZ-RP100/125/140YHA(1)
PUHZ-RP200/250YHA(1)
PU(H)-P·VGAA.UK
PU(H)-P·YGAA.UK
SUZ-KA·VA.TH
SUZ-KA50/60/71VA.TH
Service Manual No.
OC334
OC338
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
OC322
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
1-1. OUTDOOR UNIT’S SERVICE MANUAL
OC335A--1.qxp 06.7.12 3:04 PM Page 2

3
[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.
Gravimeter
Unit
[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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4
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.)
OC335A--1.qxp 06.7.12 3:04 PM Page 4

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 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
OC335A--1.qxp 06.7.12 3:04 PM Page 5

6
PART NAMES AND FUNCTIONS
3
● 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.
On the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.
Auto Air Swing Vane
Disperses airflow up and
down and adjusts the angle
of airflow direction.
Grille
Filter
Removes dust and pollutants
from intake air
Horizontal Air Outlet
Sets airflow of horizontal automatically
during cooling or dehumidifying.
Air Intake
Intakes air from room.
● Indoor Unit
● Wired remote controller
OC335A--1.qxp 06.7.12 3:04 PM Page 6

7
●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.
OC335A--1.qxp 06.7.12 3:04 PM Page 7

8
ON/OFF TEMP
FAN
VANE
TEST RUN
AUTO STOP
AUTO START
h
min
LOUVER
MODE
CHECK
RESETSET CLOCK
MODEL SELECT
NOT AVAILABLE
CHECK TEST RUN
˚C
AMPM
AMPM
VANE CONTROL button
Used to change the air flow direction.
CLOCK button
RESET button
SET button
ON/OFF button
The unit is turned ON and OFF alternately
each time the button is pressed.
LOUVER button
This switch the horizontal fan motion ON
and OFF.
(Not available for this model.)
MODE SELECT button
Used to switch the operation mode between
cooling, drying, blowing, heating and auto
mode.
CHECK-TEST RUN button
Only press this button to perform an inspec-
tion check or test operation.
Do not use it for normal operation.
FAN SPEED SELECT button
Used to change the fan speed.
TIMER display
Displays when in timer operation or when
setting timer.
button
SET TEMPERATURE button sets any desired
room temperature.
CLOCK display
Displays the current time.
“” “ ” display
Displays the order of timer operation.
“ ” “ ” display
Displays whether timer is on or off.
wIn case the outdoor unit is cool only type,
the heating mode is not available.
Buttons used to set the “hour and minute” of
the current time and timer settings.
h and min buttons
display
SET TEMP. display indicates desired temper-
ature set.
display
FAN SPEED display indicates which fan
speed has been selected.
display
The vertical direction of air flow is indicated.
display
Blinks when model is selected.
display
Lights up while transmission to the indoor
unit is mode using switches.
display
CHECK&TEST RUN display indicates that
the unit is being checked or test-run.
display
OPERATION MODE display
Operation mode display indicates which op-
eration mode is in effect.
TIMER CONTROL buttons
AUTO STOP (OFF timer): when this switch
is set, the air conditioner will be au-
tomatically stopped at the preset time.
AUTO START (ON timer): when this switch
is set, the air conditioner will be automatical-
ly started at the preset time.
MODEL SELECT
CHECK TEST RUN
● Wireless remote controller
OC335A--1.qxp 06.7.12 3:04 PM Page 8

9
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
Running current
Starting current
External finish (Panel)
Heat exchanger
Fan Fan(drive) oNo.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Booster heater
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
Cooling
0.16
0.79
1.0
Heating
0.16
0.79
1.0
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.070
14-15-16-18(495-530-565-635)
0(direct blow)
–
Remote controller & built-in
28-29-31-33
32(1-1/4)
PLA-RP50AA.UK
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 258 (10-3/16) PANEL: 30 (1-3/16)
UNIT : 24 (53) PANEL: 5 (11)
Cooling
0.16
0.79
1.0
Heating
0.16
0.79
1.0
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.070
11-12-13-14(390-425-460-495)
0(direct blow)
–
Remote controller & built-in
27-28-29-31
32 (1-1/4)
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
Running current
Starting current
External finish (Panel)
Heat exchanger
Fan Fan(drive) oNo.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Booster heater
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
PLA-RP35AA.UK
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 258 (10-3/16) PANEL: 30 (1-3/16)
UNIT : 24 (53) PANEL: 5 (11)
Cooling
0.16
0.79
1.0
Heating
0.16
0.79
1.0
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.070
14-15-16-18(495-530-565-635)
0(direct blow)
–
Remote controller & built-in
28-29-31-33
32(1-1/4)
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
PLA-RP60AA.UK
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input
Running current
Starting current
External finish (Panel)
Heat exchanger
Fan Fan(drive) oNo.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Booster heater
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 258 (10-3/16) PANEL: 30 (1-3/16)
UNIT : 24 (53) PANEL: 5 (11)
SPECIFICATIONS
4
OC335A--1.qxp 06.7.12 3:04 PM Page 9

10
Cooling
0.16
0.79
1.0
Heating
0.16
0.79
1.0
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.070
15-16-18-20(530-565-635-705)
0(direct blow)
–
Remote controller & built-in
28-30-32-34
32(1-1/4)
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
Running current
Starting current
External finish (Panel)
Heat exchanger
Fan Fan(drive) oNo.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Booster heater
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
PLA-RP71AA.UK
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 258 (10-3/16) PANEL: 30 (1-3/16)
UNIT : 24 (53) PANEL: 5 (11)
Cooling
0.25
1.25
2.0
Heating
0.25
1.25
2.0
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.120
20-23-26-28(705-810-920-980)
0(direct blow)
–
Remote controller & built-in
33-36-39-41
32(1-1/4)
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
PLA-RP100AA.UK
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input
Running current
Starting current
External finish (Panel)
Heat exchanger
Fan Fan(drive) oNo.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Booster heater
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
UNIT : 840 (33-1/16) PANEL : 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL : 950 (37-3/8)
UNIT : 298 (11-3/4) PANEL : 30 (1-3/16)
UNIT : 30 (66) PANEL : 5 (11)
Cooling
0.33
1.64
2.0
Heating
0.33
1.64
2.0
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.120
22-25-28-30(775-880-990-1,060)
0(direct blow)
–
Remote controller & built-in
37-40-43-45
32(1-1/4)
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
PLA-RP125AA.UK
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input
Running current
Starting current
External finish (Panel)
Heat exchanger
Fan Fan(drive) oNo.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Booster heater
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
UNIT : 840 (33-1/16) PANEL : 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL : 950 (37-3/8)
UNIT : 298 (11-3/4) PANEL : 30 (1-3/16)
UNIT : 32 (71) PANEL : 5 (11)
OC335A--1.qxp 06.7.12 3:04 PM Page 10

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) oNo.
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
0.16
0.79
1.0
Heating
0.16<1.29>
0.75<5.61>
1.0<5.61>
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.070
11-12-13-14(390-425-460-495)
0(direct blow)
<1.29>
Remote controller & built-in
27-28-29-31
32(1-1/4)
PLH-P35AAH.UK
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 258 (10-3/16) PANEL: 30 (1-3/16)
UNIT : 26 (57) PANEL: 5 (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
Running current
Starting current
External finish (Panel)
Heat exchanger
Fan Fan(drive) x No.
Fan motor output
Airflow(Low-Medium2-Medium1-High)
External static pressure
Booster heater
Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Unit drain pipe I.D.
Dimensions
Weight
W
D
H
INDOOR UNIT
PLA-RP140AA.UK
Cooling
0.33
1.64
2.0
Heating
0.33
1.64
2.0
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.120
22-25-28-30(775-880-990-1,060)
0(direct blow)
–
Remote controller & built-in
37-40-43-45
32(1-1/4)
UNIT : 840 (33-1/16) PANEL : 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL : 950 (37-3/8)
UNIT : 298 (11-3/4) PANEL : 30 (1-3/16)
UNIT : 32 (71) PANEL : 5 (11)
w1 : < > Shows the only booster heater rating.
Cooling
0.16
0.79
1.0
Heating
0.16<1.29>
0.75<5.61>
1.0<5.61>
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.070
14-15-16-18(495-530-565-635)
0(direct blow)
<1.29>
Remote controller & built-in
27-28-29-31
32(1-1/4)
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
PLH-P50AAH.UK
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input w1
Running current w1
Starting current w1
External finish
Heat exchanger
Fan Fan(drive) oNo.
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
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 258 (10-3/16) PANEL: 30 (1-3/16)
UNIT : 26 (57) PANEL: 5 (11)
OC335A--1.qxp 06.7.12 3:04 PM Page 11

12
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) oNo.
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
0.16
0.79
1.0
Heating
0.16<1.93>
0.79<8.39>
1.0<8.39>
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.070
15-16-18-20(530-565-635-705)
0(direct blow)
–
Remote controller & built-in
28-30-32-34
32(1-1/4)
PLH-P71AAH.UK
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 258 (10-3/16) PANEL: 30 (1-3/16)
UNIT : 26 (57) PANEL: 5 (11)
Cooling
0.16
0.79
1.0
Heating
0.16<1.93>
0.79<8.39>
1.0<8.39>
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.070
14-15-16-18(495-530-565-635)
0(direct blow)
<1.93>
Remote controller & built-in
28-29-31-33
32(1-1/4)
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) oNo.
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
PLH-P60AAH.UK
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL: 950 (37-3/8)
UNIT : 258 (10-3/16) PANEL: 30 (1-3/16)
UNIT : 26 (57) PANEL: 5 (11)
w1 : < > Shows the only booster heater rating.
Cooling
0.25
1.25
2.0
Heating
0.25<2.39>
1.25<10.39>
2.0<10.39>
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.120
20-23-26-28(705-810-920-980)
0(direct blow)
<2.39>
Remote controller & built-in
33-36-39-41
32(1-1/4)
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
PLH-P100AAH.UK
Service Ref.
Mode
Power supply(phase, cycle, voltage)
Input w1
Running current w1
Starting current w1
External finish
Heat exchanger
Fan Fan(drive) oNo.
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
UNIT : 840 (33-1/16) PANEL : 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL : 950 (37-3/8)
UNIT : 298 (11-3/4) PANEL : 30 (1-3/16)
UNIT : 32 (71) PANEL : 5 (11)
OC335A--1.qxp 06.7.12 3:04 PM Page 12

13
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) oNo.
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
PLH-P140AAH.UK
Cooling
0.33
1.64
2.0
Heating
0.33<2.76>
1.64<12.00>
2.0<12.00>
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.120
22-25-28-30(775-880-990-1,060)
0(direct blow)
<2.76>
Remote controller & built-in
37-40-43-45
32(1-1/4)
UNIT : 840 (33-1/16) PANEL : 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL : 950 (37-3/8)
UNIT : 298 (11-3/4) PANEL : 30 (1-3/16)
UNIT : 34 (75) PANEL : 5 (11)
Cooling
0.33
1.64
2.0
Heating
0.33<2.76>
1.64<12.00>
2.0<12.00>
Single phase, 50Hz, 230V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) o1
0.120
22-25-28-30(775-880-990-1,060)
0(direct blow)
<2.76>
Remote controller & built-in
37-40-43-45
32(1-1/4)
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) oNo.
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
PLH-P125AAH.UK
UNIT : 840 (33-1/16) PANEL : 950 (37-3/8)
UNIT : 840 (33-1/16) PANEL : 950 (37-3/8)
UNIT : 298 (11-3/4) PANEL : 30 (1-3/16)
UNIT : 34 (75) PANEL : 5 (11)
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14
5NOISE CRITERION CURVES
PLA-RP35AA.UK
PLH-P35AAH.UK PLA-RP50AA.UK PLA-RP60AA.UK
PLH-P50AAH.UK
PLH-P60AAH.UK
NOTCH SPL(dB) LINE
High
Medium1
Medium2
Low
High
Medium1
Medium2
Low
31
29
28
27
NOTCH SPL(dB) LINE
33
31
29
28
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) OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
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
PLA-RP71AA.UK
PLH-P71AAH.UK PLA-RP100AA.UK PLH-P100AAH.UK
NOTCH SPL(dB) LINE
34
32
30
28
NOTCH SPL(dB) LINE
41
39
36
33
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
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
High
Medium1
Medium2
Low
High
Medium1
Medium2
Low
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar) OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
OC335A--1.qxp 06.7.12 3:04 PM Page 14

15
PLA-RP125AA.UK
PLH-P125AAH.UK PLA-RP140AA.UK PLH-P140AAH.UK
NOTCH SPL(dB) LINE
45
43
40
37
NOTCH SPL(dB) LINE
45
43
40
37
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) OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
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
High
Medium1
Medium2
Low
High
Medium1
Medium2
Low
UNIT
1.5m
MICROPHONE
CEILING
OC335A--1.qxp 06.7.12 3:04 PM Page 15

16
6OUTLINES AND DIMENSIONS
PLH-P35,50,60,71AAH
PLA-RP35,50,60,71AA
Models
PLA-RP100,125,140AA
PLH-P100,125,140AAH
241
281
A
258
298
B
80
84
C
Receiver Operation lamp
DEFROST/STAND BY lamp
Emergency operation switch (cooling)
A (WIRELESS PANEL)
Emergency operation switch (heating)
Branch duct hole
(Cut out hole)
{175
{150
14 - {2.8
Burring hole
350
90
70_
100 100 90
100 130
155
167
Suspension bolt pitch
Ceiling hole
Branch
duct hole
Suspension bolt pitch
Ceiling hole
840
197 159
159
605
159192
98
89
C
840
860 - 91020 - 45 20 - 45
20 - 4520 - 45
Fresh air intake
Branch duct hole
860 - 910
810
159
16
Terminal block
Drain pipe
VP-25connection
(O.D.{32)
Ceiling surface
Power line entry
Suspension bolt lower edge
Suspension bolt M10
or W3/8
Control wire entry
Feeding hole
(Drain pump) 37428660
17+5
0
30
190
170
140
50 - 70
105
A
B
1
2
High efficiency filter
& Fresh air intake casement (option)
17+5
0135
Air outlet hole
Vane motor
Auto vane
Drain hole
Grille
Air outlet hole
Air intake hole
411
Air intake hole
Air intake grille 577
77 51
M
M
M
A
M
950
51 77
950 577 411
RP35, 50
Use the current nuts meeting the pipe size of the outdoor unit.
Available pipe size
Factory flare nut attachment to the heat-exchanger.
1LIQUID SIDE
2GAS SIDE
RP60 RP71
[6.35 [6.35 — —
[9.52 [9.52 [9.52 [9.52
[12.7 — — —
[15.88 [15.88 [15.88 [15.88
———[19.05
RP100, 125, 140 P35,50,60,71
——
[9.52 [9.52
——
[15.88 —
—[19.05
P100, 125, 140
Detail drawing of fresh air intake
3 - {2.8
Burring hole {125
Burring hole pitch
{100
(Cut out hole)
Ceiling surface
120_
120_
158
Unit : mm
INDOOR UNIT
PLA-RP35AA.UK PLA-RP50AA.UK PLA-RP60AA.UK PLA-RP71AA.UK
PLA-RP100AA.UK PLA-RP125AA.UK PLA-RP140AA.UK
PLH-P35AAH.UK PLH-P50AAH.UK PLH-P60AAH.UK PLH-P71AAH.UK
PLH-P100AAH.UK PLH-P125AAH.UK PLH-P140AAH.UK
OC335A--1.qxp 06.7.12 3:04 PM Page 16

17
7WIRING DIAGRAM
PLA-RP35AA.UK PLA-RP50AA.UK PLA-RP60AA.UK PLA-RP71AA.UK
PLA-RP100AA.UK PLA-RP125AA.UK PLA-RP140AA.UK
PLH-P35AAH.UK PLH-P50AAH.UK PLH-P60AAH.UK PLH-P71AAH.UK
PLH-P100AAH.UK PLH-P125AAH.UK PLH-P140AAH.UK
INDOOR POWER BOARD
[LEGEND]
P.B INDOOR CONTROLLER BOARDI.B FUSE(T6.3AL250V)FUSE
CN2L
VARISTORZNR
CONNECTOR(LOSSNAY)
CN32
FAN CONTROL ELEMENTBCR
CONNECTOR(REMOTE SWITCH)
CN41 CONNECTOR(HA TERMINAL-A)
CN51 CONNECTOR(CENTRALLY CONTROL)
SW1 SWITCH(MODEL SELECTION)wSee table 1
SWITCH(
CAPACITY CODE )wSee table 2
SW2
SWE CONNECTOR(EMERGENCY OPERATION)
X1 RELAY(DRAIN PUMP)
X4 RELAY(FAN MOTOR)
LED1 POWER SUPPLY(I.B)
LED2 POWER SUPPLY(I.B)
LED3 TRANSMISSION(INDOOR-OUTDOOR)
SYMBOL NAME SYMBOL NAME SYMBOL NAME
C CAPACITOR(FAN MOTOR)
MF FAN MOTOR
MV VANE MOTOR
DP DRAIN-UP MACHINE
DS DRAIN SENSOR
H2 DEW PREVENTION HEATER
TB4 TERMINAL BLOCK (INDOOR/
OUTDOOR CONNECTING LINE)
TB2 TERMINAL BLOCK (HEATER)wPLH-P.AAH
models only or option for PLA-RP.AA models.
TB5, TB6 TERMINAL BLOCK(REMOTE
CONTROLLER TRANSMISSION LINE)
TH1 ROOM TEMP.THERMISTOR
(0:/15k",25:/5.4k"DETECT)
TH2 PIPE TEMP.THERMISTOR/LIQUID
(0:/15k",25:/5.4k"DETECT)
TH5 COND./EVA. TEMP. THERMISTOR
(0:/15k",25:/5.4k"DETECT)
R.B
WIRED REMOTE CONTROLLER BOARD
W.B
HEATER
WIRELESS REMOTE CONTROLLER BOARD
RU RECEIVING UNIT
FS1 THERMAL FUSE(72:, 16A)
FS2 THERMAL FUSE(104:, 16A)
H1 HEATER
26H HEATER THERMAL SWITCH
88H HEATER CONTACTOR
BZ BUZZER
LED1 LED(RUN INDICATOR)
LED2 LED(HOT ADJUST)
SW1 SWITCH(HEATING ON/OFF)
SW2 SWITCH(COOLING ON/OFF)
321
321
531
MF
FAN
(WHT)
RED WHT BLK BLK
X1
X4
X1X4
C
BCR
31
DP
D.U.M
CNP
(BLU)
YLW YLW ORN ORN
YLW
31 31 31 31
YLW
YLW
D.HEATER
CNC(RED)
RED WHT WHT BRN
POWER
CNDK
(RED)
POWER
CND
(ORN)
21
POWER
CN2D
(WHT)
INDOOR/OUTDOOR
COMMUNICATION
CN3C
(BLU)
3131
POWER
CND
(ORN)
INDOOR/OUTDOOR
COMMUNICATION
CN3C
(BLU)
CN41CN51 CN2L
CN32 9
WIRELESS
CN90
(WHT)
BZ
5
VANE
CN6V
(GRN)
CN2S
(WHT)
CNSK
(RED)
W.B
LED2
CNB LED1
SW1 SW2 RU
21
221
1
REMOCON
CN22
(BLU)
TB5
TRANSMISSION WIRES
DC12V
TB6
R.B
BLU BLU
321 21 21
D.SENSOR
CN31
(WHT)
INTAKE
CN20
(RED)
HEATER
CN24
(YLW)
LIQUID
CN21
(WHT)
DS
TH2
21
PIPE
CN29
(BLK)
TH5
TH1
LED3 LED2 LED1
ON
OFF
SWE
Refer to tables 1
and 2.
SW2 SW1
9 5 10 76321 84
5
MV
5
MV
5
5
MV
5
MV
GRILLE
H2
S1
S2
TB2
TB4
POWER SUPPLY
~(1PHASE)
230V 50Hz
RED
BLU
YLW
ORN
ORN
BRN
GRN/YLW
S3
TB4
TO OUTDOOR UNIT
TO OUTDOOR UNIT
L
S1
S2
S3
N
DC
13.1V
1
2
23
1
P.B
ZNR
FUSE
I.B
I.B
YLW
ORN
BRN
ORN
YLW
ORN
W1 (Fig.1)
Please set the voltage using the
remote controller.
For the setting method. please refer to
the indoor unit Installation Manual.
1 2 3 4 5
ON
OFF
MODELS
Table 1 SW1
Manufacture/Service
PLA-RP. AA
1 2 3 4 5
ON
OFF
MODELS
Table 2 SW2
Manufacture/Service
PLA-RP35AA
PLH-P35AAH
PLA-RP50AA
PLH-P50AAH
PLA-RP60AA
PLH-P60AAH
PLA-RP71AA
PLH-P71AAH
PLA-RP100AA
PLH-P100AAH
PLA-RP125AA
PLH-P125AAH
PLA-RP140AA
PLH-P140AAH
1 2 3 4 5
ON
OFF
1 2 3 4 5
ON
OFF
1 2 3 4 5
ON
OFF
1 2 3 4 5
ON
OFF
MODELS
Manufacture/Service
1 2 3 4 5
ON
OFF
1 2 3 4 5
ON
OFF
1 2 3 4 5
ON
OFF
PLH-P. AAH
TB2
I.B
HEATER CN24
(YLW)
[PLH-P.AAH models only]
POWER SUPPLY
~(1PHASE)
230V 50Hz
88H FS1
26H
FS2
H1
L
RED RED RED
BLU
GRN/YLW WHT
WHT
WHTGRY
N
2
1
2
6
5
1
88H
YLW YLW
NOTES:
1.Symbols used in wiring diagram above are, : Connector, : Terminal (block).
2.Indoor and outdoor connecting wires are made with polarities, make wiring
matching terminal numbers (S1,S2,S3).
3.Since the outdoor side electric wiring may change be sure to check the outdoor
unit electric wiring for servicing.
4.This dlagram shows the wiring of Indoor and Outdoor connecting wires
(specification of 230V), adopting superimposed system of power and signal.
w1 ; When work to supply power separately to Indoor and Outdoor unit was applied, refer to Fig1.
w2 ; For power supply system of this unit, refer to the caution label located near this diagram.
OC335A--1.qxp 06.7.12 3:04 PM Page 17

18
Thermistor TH2
Pipe temperature(Liquid)
Distributor
with strainer (#50)
Thermistor TH5
(Cond./ Eva.temperature)
Thermistor TH1
(Room temperature)
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
PLA-RP35AA.UK PLA-RP50AA.UK PLA-RP60AA.UK PLA-RP71AA.UK
PLA-RP100AA.UK PLA-RP125AA.UK PLA-RP140AA.UK
PLH-P35AAH.UK PLH-P50AAH.UK PLH-P60AAH.UK PLH-P71AAH.UK
PLH-P100AAH.UK PLH-P125AAH.UK PLH-P140AAH.UK
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19
9TROUBLESHOOTING
<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 summarized in the table below. Check
the contents below before investigating details.
9-1. TROUBLESHOOTING
Unit conditions at service Error code Actions to be taken for service (summary)
The inferior phenomenon is
reoccurring.
Displayed
Not displayed
Judge what is wrong and take a corrective action
according to “SELF-DIAGNOSIS ACTION TABLE” (9-3).
Identify the cause of the inferior phenomenon and take
a corrective action according to “TROUBLESHOOTING
BY INFERIOR PHENOMENA” (9-4).
The inferior phenomenon is
not reoccurring.
Logged
Not logged
1Consider the temporary defects such as the work of
protection devices in the refrigerant circuit including
compressor, poor connection of wiring, noise and etc.
Re-check the symptom, and check the installation
environment, refrigerant amount, weather when the
inferior phenomenon occurred, and wiring related.
2Reset error code logs and restart the unit after finishing
service.
3There is no abnormality in electrical components,
controller boards, and remote controller.
1Recheck the abnormal symptom.
2Identify the cause of the inferior phenomenon and take
a corrective action according to “TROUBLESHOOTING
BY INFERIOR PHENOMENA” (9-4).
3Continue to operate unit for the time being if the cause
is not ascertained.
4There is no abnormality in electrical components,
controller boards, remote controller etc.
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[Procedure]
1. Press the CHECK button twice.
2. Press the temperature
buttons.
3. Point the remote controller at the
sensor on the indoor unit and
press the HOUR button.
4. Point the remote controller at the
sensor on the indoor unit and
press the ON/OFF button.
• "CHECK" lights, and refrigerant
address "00" flashes.
• Check that the remote controller's
display has stopped before continuing.
• Select the refrigerant address of the
indoor unit for the self-diagnosis.
Note: Set refrigerant address using the
outdoor unit’s DIP switch (SW1).
(For more information, see the
outdoor unit installation manual.)
• If an air conditioner error occurs, the
indoor unit's sensor emits an intermit-
tent buzzer sound, the operation light
flashes, and the error code is
output.
(It takes 3 seconds at most for error
code to appear.)
• The check mode is cancelled.
<Malfunction-diagnosis method at maintenance service>
9-2. MALFUNCTION-DIAGNOSIS METHOD BY REMOTE CONTROLLER
<In case of trouble during operation>
When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform
unusual stop.
ON/OFF TEMP
FAN
VANE
MODE
CHECK
LOUVER
TEST RUN
AUTO STOP
AUTO START
h
min
RESET
SET CLOCK
CHECK
CHECK
display
Temperature
button
CHECK
button
Refrigerant
address
display
HOUR
button
ON/OFF
button
To be continued to the next page.
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