11. PARTS LIST ·······················································42
12. OPTIONAL PARTS ························BACK COVER
• This manual dose not cover
outdoor uniits. When servicing
tthem, please refer to service
manual OC261 REVISED
EDITION-B, OC285, OC294
REVISED EDITION-A, OC298
and this manual in a set.
······················28
Remote controller
Page 2
1
Outdoor unit [OC294
REVISED EDITION-A]
Heat pump type
PUHZ-RP
Outdoor unit [OC285]
Heat pump type
PUH-P
(R407C Fixed speed)
(R407C Fixed speed)
(R410A Inverter)
Outdoor unit [OC298]
Cooling only type
PU-P
2VHA
—
1.6VHA
—
Indoor unit
PKA-RP1.6GAL
PKA-RP2GAL
Heat pump without
electric heater
or
Cooling only
1.6VGAA
—
2VGAA
—
1.6VGAA
—
2VGAA
—
Indoor unit
PKA-RP1.6GAL
PKA-RP2GAL
Heat pump type
PUH-P
Cooling only type
PU-P
Heat pump without
electric heater
or
Cooling only
—
VGAA.UK
VGAA1.UK
—
YGAA.UK
YGAA1.UK
—
VGAA.UK
VGAA1.UK
—
YGAA.UK
YGAA1.UK
—
VGAA.UK
VGAA1.UK
—
YGAA.UK
YGAA1.UK
—
VGAA.UK
VGAA1.UK
—
YGAA.UK
YGAA1.UK
Indoor unit
PKA-RP1.6GAL
PKA-RP2GAL
Outdoor unit [OC261 REVISED EDITION-B
]
1.621.62
COMBINATION OF INDOOR AND OUTDOOR UNITS
2
Page 3
2SAFETY PRECAUTION
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 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 seal 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
CAUTIONS RELATED TO NEW REFRIGERANT
Cautions for units utilizing 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
Page 4
[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
Page 5
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.
· 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 utilizing 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
Page 6
Unit
Gravimeter
[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)
3PART NAMES AND FUNCTIONS
● Indoor Unit
Air intake
Guide vane
Filter
Air outlet
Air intake grille
Auto vane
6
Page 7
●Wireless remote controller
ON/OFF TEMP
FAN
VANE
TEST RUN
AUTO STOP
AUTO START
h
min
LOUVER
MODE
CHECK
RESETSETCLOCK
MODEL SELECT
NOT AVAILABLE
CHECK
TEST RUN
˚C
AMPM
AMPM
VANE CONTROL button
Used to change the air flow direction.
CLOCK button
RESET button
SET button
ON/OFF button
The unit is turned ON and OFF alternately
each time the button is pressed.
LOUVER button
This switch the horizontal fan motion ON
and OFF.
(Not available for this model.)
MODE SELECT button
Used to switch the operation mode between
cooling, drying, blowing, heating and auto
mode.
CHECK-TEST RUN button
Only press this button to perform an inspection check or test operation.
Do not use it for normal operation.
FAN SPEED SELECT button
Used to change the fan speed.
TIMER display
Displays when in timer operation or when
setting timer.
button
SET TEMPERATURE button sets any desired
room temperature.
CLOCK display
Displays the current time.
“ ” “ ” display
Displays the order of timer operation.
“ ” “ ” display
Displays whether timer is on or off.
w In case the outdoor unit is cool only type,
the heating and auto mode not available.
Buttons used to set the “hour and minute” of
the current time and timer settings.
h and min buttons
display
SET TEMP. display indicates desired temperature set.
display
FAN SPEED display indicates which fan
speed has been selected.
display
The vertical direction of air flow is indicated.
display
Blinks when model is selected.
display
Lights up while transmission to the indoor
unit is mode using switches.
display
CHECK&TEST RUN display indicates that
the unit is being checked or test-run.
display
OPERATION MODE display
Operation mode display indicates which operation mode is in effect.
TIMER CONTROL buttons
AUTO STOP (OFF timer): when this switch
is set, the air conditioner will be automatically stopped at the preset time.
AUTO START (ON timer): when this switch
is set, the air conditioner will be automatically started at the preset time.
MODEL SELECT
CHECK
TEST RUN
● When cover is open.
7
Page 8
4
Cooling
15,700
4,600(2,300~5,400)
1.63
0.07
0.33
0.40
Heating
15,400
4,500(2,500~6,200)
1.40
0.07
0.33
0.40
Single phase, 50Hz, 220-230-240V
Munsell 0.70Y 8.59/0.97
Plate fin coil
Line flow (direct) x 1
0.030
9-10-11-12(320-355-390-425)
0(direct blow)
Wireless remote controller & built-in
36-38-41-43
26(1)
990(39)
235(9-1/4)
340(13-3/8)
16(35)
PUHZ-RP2VHA
PKA-RP2GAL
PKA-RP2GAL
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(Lo-Mi2-Mi1-Hi)
External static pressure
Operation control & Thermostat
Noise level(Lo-Mi2-Mi1-Hi)
Unit drain pipe O.D.
Dimensions
The unit of pressure has been changed to Mpa on tha international system of unit (Sl system).
The converted score against tha traditional unit system can be gotten according to the formula below.
1(Mpa) = 10.2(kgf/ff)
The unit of pressure has been changed to Mpa on tha international system of unit (Sl system).
The converted score against tha traditional unit system can be gotten according to the formula below.
1(Mpa) = 10.2(kgf/ff)
23
Page 24
Air flow m3/min
Air speed m/sec
Coverage range m (ft)
The unit of pressure has been changed to Mpa on tha international system of unit (Sl system).
The converted score against tha traditional unit system can be gotten according to the formula below.
1(Mpa) = 10.2(kgf/ff)
5-5. OUTLET AIR SPEED COVERAGE RANGE
The air coverage range is the value up to the position where the air speed is 0.25m/sec. when air is blown out horizontally from
the unit at the Hi notch position.
The coverage range should be used only as a general guideline since it varies according to the size of the room and the furniture inside the room.
24
Page 25
5-6. NOISE CRITERION CURVES
UNIT
WALL
1m
1m
MICROPHONE
PKA-RP1.6GAL
PKA-RP2GAL
90
80
70
60
50
40
30
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
20
10
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
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,
[Self-diagnosis]
An explanation of the wireless remote controller self checking operations,check codes,buzzer sounds and LED signals are given
below. For check codes and symptom see the table below please.
1.Press the CHECK button twice continuously.
· CHECK begins to light and refrigerant address display
"00" begins to blink.
· Start this operation from the status of remote controller
display turned off.
2.Press the TEMP , buttons.
· Set the refrigerant address of the indoor unit that is to
be self-diagnosed.
· Set the refrigerant address of outdoor unit by outdoor unit
dip switch "SW1".
(Refer to installation manual of outdoor unit for the detail.)
Check code
U0~UL
F1~F9
E6~EF
Operation lamp
P1
1SEC.FLASHo1
P2
1SEC.FLASHo2
P6
1SEC.FLASHo6
P8
1SEC.FLASHo8
P9
1SEC.FLASHo2
(0.4+0.4)SEC.FLASHo1
DIFFERENT FROM ABOVE
----
OFF
FFFF
OFF
▼
▲
Buzzer sound
Single beepo1
Single beepo2
Single beepo6
Single beepo8
Single beepo2
Double beepo1
Sounds other than
above
No sound
Triple beep
:Connector, :Terminal (block).
3.While pointing the remote controller toward the unit's
receiver, press the h button.
· The check code will be indicated by the number of times
that the buzzer sounds from the receiver section and the
number of blinks of the operation lamp.
4.While pointing the remote controller toward the unit's
receiver, press the ON/OFF button.
· Self-check mode is canceled.
Abnormality of room temperature thermistor(TH1).
Abnormality of pipe temperature thermistor/Liquid(TH2).
Freezing /overheating protection is working.
Abnormality of pipe temperature.
Abnormality of pipe temperature thermistor/ Cond./Eva.(TH5).
Abnormality in outdoor unit. Refer to outdoor unit wiring diagram.
Abnormality of signal transmission between indoor unit and outdoor unit
("EE" indicates abnormality of combination).
No trouble generated in the past.
No corresponding unit.
Symptom
27
Page 28
8
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)
REFRIGERANT SYSTEM DIAGRAM
PKA-RP1.6GAL
PKA-RP2GAL
Unit : mm
28
Page 29
9TROUBLESHOOTING
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” (Page 31).
Identify the cause of the inferior phenomenon and take
a corrective action according to “Trouble shooting by
inferior phenomena” (Page 34).
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 “Trouble shooting by
inferior phenomena” (Page 34).
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.
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 summarized in the table below. Check
the contents below before investigating details.
29
Page 30
Inspected unit
Check code
P1
P2
P4
P5
P6
P8
P9
E4, E5
Beep output
beep O 1 time
beep O 2 times
beep O 4 times
beep O 5 times
beep O 6 times
beep O 8 times
beep O 2 times
Other than above
Operation LED
1 sec. O 1 time
1 sec.O 2 times
1 sec.O 4 times
1 sec.O 5 times
1 sec.O 6 times
1 sec.O 8 times
1 sec.O 2 times
Other than above
Indoor unit
Inspected unit
Check code
F1–F9
U0–UP
E6–EE
No check code
(normal)
Beep output
beep beep O 1 time
Other than above
No output
beep beep beep
Operation LED
(0.4sec+0.4sec)
O 1 time
Other than above
Lights off
Lights off
Outdoor
unit
No check code
(mistake of matching with refrigerant
address)
9-2. Malfunction-diagnosis method by remote controller
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
<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.
<Malfunction-diagnosis method at maintenance service>
[Procedure]
1. Press the CHECK button twice.
• "CHECK" lights, and refrigerant
address "00" flashes.
• Check that the remote controller's
display has stopped before continuing.
2. Press the temperature
buttons.
• 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.)
3. Point the remote controller at the
sensor on the indoor unit and
press the HOUR button.
• If an air conditioner error occurs, the
indoor unit's sensor emits an intermittent buzzer sound, the operation light
flashes, and the error code is
output.
(It takes 3 seconds at most for error
code to appear.)
4. Point the remote controller at the
• The check mode is cancelled.
sensor on the indoor unit and
press the ON/OFF button.
✽ Malfunction diagnosis can be performed only for refrigerant system control-
ling wireless units.
30
Page 31
9-3. 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 page 37.
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 page 37.
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 <-10deg
(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 page 37.
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 page 37.
Turn the power off, and on again to operate
after check.
31
Page 32
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
P8
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 Frost abnormality (Only for the combination
with inverter-type outdoor unit)
Suspensive abnormal if unit operates in
frost prevention mode (below) for 9
minutes or more. After that, when frost
prevention mode is released and
5 Overcharge of refrigerant
6 Defective refrigerant circuit
compressor restarts its operation, unit is
not detected as abnormal if compressor
keeps operating for 20 minutes continuously
and abnormal if compressor stops
operating within 20 minutes and unit
operates in frost prevention mode for
more than 9 minutes again. (Not abnormal
if unit stops operating in frost prevention
(Heating mode)
1 Clogged filter (reduced airflow)
2 Short cycle of air path
3 Over-load (high temperature)
mode within 9 minutes)
<Frost prevention mode>
If pipe <liquid or condenser-evaporator>
temperature is 2: or below when 16
minutes has passed after compressor
starts operating, unit will start operating
4 Defective indoor fan motor
• Fan motor is defective.
• Indoor controller board is
in frost prevention mode which stops
compressor operation. After that, when
pipe <liquid or condenser/evaporator>
temperature stays 10: or more for 3
minutes, frost prevention mode will be
released and compressor will restart its
operation.
5 Overcharge of refrigerant
6 Defective refrigerant circuit
3 Overheating protection (Heating mode)
The units is in six-minute resume
prevention mode if pipe <condenser /
7 Bypass circuit of outdoor unit
evaporator> temperature is detected as
over 74: after the compressor started.
Abnormal if the temperature of over
74: is detected again within 10 minutes
after six-minute resume prevention
mode.
Abnormality of pipe temperature
1 Slight temperature difference
<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
2 Converse connection of
(TH2 or TH5) – intake temperature
(TH1) [ -3 deg
TH: Lower temperature between: liquid
3 Converse wiring of indoor/
pipe temperature and condenser/
evaporator temperature
4 Defective detection of indoor
<Heating mode>
When 10 seconds have passed after the
compressor starts operation and the hot
adjustment mode has finished, the unit is
5 Stop valve is not opened
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
extension pipe (on plural units
connection)
outdoor unit connecting wire
(on plural units connection)
room temperature and pipe
<condenser / evaporator>
temperature thermistor
completely.
32
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 220~240V is
detected while fan motor is connected.
Refer to page 37.
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 page 37.
5~7Check operating condition of refrigerant
circuit.
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.
)
Page 33
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 page 37.
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).
)
E4
E5
E6
E7
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
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
transmittion 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.
33
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.
Page 34
9-4. 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 page 38.
• 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 COOLprotection 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 (3-6)
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 (3-6) 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.)
34
Page 35
9-5. EMERGENCY OPERATION
Mode
Cooling
Heating
Set temperature
Fan speed
Airflow direction
24:
High
Downward (70deg)
24:
High
Horizontal (30deg)
wEmergency operation will be performed as follows.
Receiving
section
Power lamp
Defrosting • Initial heating lamp
Emergency switch(Heat)
Emergency switch(Cool)
COOL
ON
O F F
HEAT
STAND
BY
9-5-1. When wireless remote controller troubles or its battery is exhausted
1. Emergency operation is available in such a case using emergency operation switch equipped next to the receiver of indoor
unit.
2. To start operation
• Cooling Operation·······Press (Cooling) switch.
• Heating Operation·······Press (Heating) switch.
wWhen the unit starts operating, the power lamp is lit.
3. To stop operation
• Press either emergency operation switch (cooling/heating).
9-5-2. When wired remote controller or indoor unit micro computer troubles
1. If there is not any other wrong when trouble occures, 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. 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.
35
Page 36
1
1
2
2
3
3
Red
White
Black
Relay connector
Protector
OPEN : 125i 5:
CLOSE : 79i 15:
4
5
2
361
Orange
Red
Pink
Yellow Brown Blue
M
Parts nameCheck points
Measure the resistance between the terminals using a tester.
(Winding temperature 20:)
Fan motor (MF)
Abnormal
Open or short
Red–Black
White–Black
Motor terminal
or
Relay connector
RP1.6 , RP2
120.5"
111.3"
Normal
Open or short
Abnormal
Brown–Yellow
Brown–Blue
Red–Orange
Red–Pink
Connector
Normal
186~214"
Measure the resistance between the terminals using a tester.
(Surrounding temperature 20:~30:)
Vane motor (MV)
Disconnect the connector then measure the resistance using a tester.
(Surrounding temperature 10:~30:)
Room temperature
thermistor (TH1)
Pipe temperature
thermistor/liquid(TH2)
Condenser/evaporator
temperature thermistor
(TH5)
Normal
4.3k"~9.6k"
Abnormal
Open or short
9-6. How to check the parts
PKA-RP1.6GAL
PKA-RP2GAL
<Thermistor Characteristic graph>
Thermistor for
lower temperature
Thermistor R0=15kΩ ±3%
Fixed number of B=3480K ± 2%
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
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
37
Page 38
J11~J15
(SW1)
Open/short of jumper wire
Functions
Jumper wire
Model
settings
Capacity
settings
Pair number
setting with
wireless
remote
controller
Heater-less
Models : PKA-RP1.6, RP2
Remarks
J11 J12 J13 J14 J15
Models
RP1.6
RP2
J21 J22 J23 J24
J21~J24
(SW2)
J41
J42
0
1
2
3 ~ 9
Wireless remote
controller setting
Control PCB setting
J41J42
<Settings at time of factory shipment>
Wireless remote controller: 0
Control PCB: (for both J41 and J42)
Four pair number settings are supported.
The pair number settings of the wireless remote
controller and indoor control PCB (J41/J42) are
given in the table on the left.
(' ' in the table indicates the jumper line is disconnected.)
(Marks in the table below) Jumper wire ( : Short : Open)
DIP switch ( : ON : OFF)
9-7-2. Indoor power board
PKA-RP1.6GAL
PKA-RP2GAL
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
CN2S
Connect to the indoor controller
–
board (CN2D)
}
+
(12~16V DC)
+
}
–
–
+
}
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)
Fuse 4A/250V
9-8. FUNCTIONS OF JUMPER WIRE
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.
38
Page 39
10
DISASSEMBLY PROCEDURE
PKA-RP1.6GAL
PKA-RP2GAL
OPERATION PROCEDURE
1. REMOVE THE LOWER SIDE OF THE INDOOR UNIT FROM
THE INSTALLATION PLATE.
(1) Remove the left / right corner box of the indoor unit.
(2) Hold and pull down the lower and both ends of the indoor
unit, and remove the ▼ section from the square hole.
(Refer to the figure 2.1)
Or remove the front panel and push the ▼ section down
by using hexagonal wrench ,etc. from the front side.
(Refer to the figure 2.2).
(3) Unhook the top of the indoor unit from the back plate catch.
(Figure 2.2)
PHOTOS & ILLUSTRATION
(Figure 1)
(Figure2.1)
Hook
Hook
Square hole
2. REMOVING THE FRONT PANEL.
(1) Open the front grille.
(2) Remove the terminal block cover with a screw.
(3) Remove the screw 3caps then remove the set 3screws.
(4) After removing the lower side of the front panel a little,
remove it as pulling toward upper.
3. REMOVING THE INDOOR CONTROLLER BOARD.
(1) Remove the terminal block cover.
(2) Remove the front panel. (see the photo 1)
(3) Remove the electrical parts box(2screws).
(4) Remove the electrical parts box cover(1screw).
(5) Disconnect the connector on the controller board and
remove the controller board by Pulling up the hook of the
controller case.
w To smooth works, hang the side hooks of the electrical
parts box on the hook of the motor cover.
(see the photo 3)
Up
Down
(Figure 3)
(Photo 1)
Front
panel
(Photo 2)
Motor cover
Electrical parts
box hook w
Square hole
Terminal block cover
Front grille
Set screw
Set screw
Electrical parts
box
Set screw
39
(Photo 3)
Hook
Control board
Controller case
Electrical parts box
Page 40
OPERATION PROCEDURE
PHOTOS & ILLUSTRATION
4. REMOVING THE POWER BOARD
(1) Remove the front panel.(see the photo 1)
(2) Remove the electrical parts box(2screws).(see the photo 2)
(3) Disconnect the whole connector in the control board.
(4) After lifting the controller case with pressing it’s convex
section, remove the controller case and the control board
simultaneously.(see the photo 3)
(5) Disconnect the connector in the power board.
(6) Remove the power board.
5. REMOVING THE VANE MOTOR
(1) Disconnect the connector CN6V on the indoor controller
board.
(2) Remove the 2screws of the vane motor, disconnect the
lead wire and remove the vane motor from the shaft.
6. REMOVING THE THERMISTOR
(1) Removing the room temperature thermistor TH1.
1Disconnect the connector CN20<red> on the indoor
controller board.
2Remove the room temperature thermistor from the holder.
(2) Removing the pipe temperature thermistor TH2.
1Disconnect the connector CN21<white> on the controller
board.
2Remove the pipe temperature thermistor with set to the pipe.
(3) Removing the indoor coil temperature thermistor TH5.
1Disconnect the connector CN29<black> on the indoor con-
troller board.
2Remove the gas pipe thermistor with set to the pipe.
(Photo 4)
(Photo 5)
Nozzle
assemble
Van motor
(Photo 6)
Pipe
temperature
thermistor
Room
temperature
thermistor
Power board
Electrical parts
box
Set screws
Lead wire
Condenser
/evaporator
temperature
thermistor
Electrical
parts box
7. REMOVING THE NOZZLE ASSEMBLE
(1) Disconnect the connector CN6V on the controller board.
(2) Disconnect the lead wire of the vane motor.
(3) Remove the corner cover.
(4) Pull the drain hose out from the nozzle assemble.
(5) Unhook the hook of the lower nozzle assemble and
pull the nozzle assemble toward you,then remove the
nozzle assemble by sliding it down.
8. REMOVING THE ELECTRICAL PARTS BOX
(1) Remove the terminal block cover.
(2) Remove the front panel.(see the photo 1)
(3) Disconnect the vane motor connector.
(4) Disconnect the fan motor connector from the fan motor.
(5) Remove the liquid / gas pipe thermistor.(see the photo 6)
(6) Remove the electrical parts box (2screws).
(Photo 7)
Nozzle assemble
(Photo 8)
Pipe
temperature
thermistor
Hook
Fan motor connector
Drain hose
Corner cover
Vane motor
connector
Electrical
parts box
40
Page 41
OPERATION PROCEDUREPHOTOS & ILLUSTRATION
9. REMOVING THE FAN MOTOR.
(1) Remove the terminal block cover.
(2) Remove the front panel.(see the photo 1)
(3) Remove the electrical parts box.(see the photo 8)
(4) Remove the nozzle assemble.(see the photo 7)
(5) Remove the fan motor leg fixing 3screws.
(6) Unscrew the set screws using by alankey and remove it by
sliding the fan motor to right.
(7) Remove the 4screws and remove the motor cover from the
fan motor leg.
10. REMOVING THE LINE FLOW FAN
(1) Remove the terminal block cover.
(2) Remove the front panel.(see the photo 1)
(3) Remove the electrical parts box.(see the photo 8)
(4) Remove the nozzle assembly.(see the photo 7)
(5) Remove the fan motor.(see the photo 9)
(6) Remove the pipe fixture with 2screws.(see the photo12)
(7) Remove the left / right screws of the heat exchanger and
pull the left-hand side up.
(8) Remove the 2screws by sliding it toward you remove the
fixture(fixing bearing).
w The fan motor is removable first , when the fan removing
is hard.
w When resetting the fan to the fan motor.
Locate and fix the shaft after installing the fan.
(Photo 9)
Set
screw
(Photo 10)
Motor cover
Fan motor
(Photo11)
Heat exchanger
Set screws
Fixture
(fixing bearing)
Motor cover
Fan motor
screws
motor leg
11. REMOVING THE HEAT EXCHANGER
(1) Remove the terminal block cover.
(2) Remove the front panel.(see the photo 1)
(3) Remove the electrical parts box.(see the photo 8)
(4) Remove the corner box.
(5) Remove the nozzle assemble.(see the photo 7)
(6) Remove the 2screws and the pipe fixture.
(7) Remove the 2screws and heat exchanger.
12. REMOVING the SIGNAL RECEIVING P.C. BOARD
(1) Remove the terminal block cover.
(2) Disconnect the connector <yellow> for the wireless remote
controller.
(3) Remove the front panel.(see the photo 1)
(4) Remove the 2screws and signal receiving p.c. board cover.
(5) Remove the signal receiving p.c. board.
(Photo 12)
Heat
exchanger
Set screw
(Photo 14)
Set screws
(Photo 15)
Pipe fixture
Signal receiving p.c. board cover
Set screws
Front
panel
Front
panel
41
Signal receiving p.c. board
Page 42
11PARTS LIST
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
BACK PLATE
CORNER COVER
UNDER COVER
FRONT PANEL
SCREW CAP
VANE SLEEVE
FRONT GRILLE
AIR FILTER
AUTO VANE
RECEIVING UNIT
CORNER COVER
BOX ASSEMBLY
WIRELESS REMOTE CONTROLLER
WIRELESS REMOTE CONTROLLER DOOR
WIRELESS REMOTE CONTROLLER HOLDER
HEAT EXCHANGER
LINE FLOW FAN
BEARING MOUNT
SLEEVE BEARING
BEARING SUPPORT
FAN GUARD
DRAIN PLUG
DRAIN HOSE
NOZZLE
GUIDE VANE
GUIDE VANE
ARM
VANE MOTOR
WIRERLESS ADAPTER CONTROLLER BOARD
MOTOR COVER
RUBBER MOUNT
FAN MOTOR
TERMINAL COVER
TERMINAL BLOCK
CAPACITOR
INDOOR CONTROLLER BOARD
CONTROLLER COVER
CONTROLLER CASE
POWER BOARD
FUSE
ELECTRICAL PARTS COVER
SENSOR HOLDER
CONDENSER / EVAPORATOR TEMPERATURE THERMISTOR
ROOM TEMPERATURE THERMISTOR
PIPE TEMPERATUER THERMISTOR
MOTOR SUPPORT
FLARE NUT
FLARE NUT