Mitsubishi PLA-RP Service manual
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS
August 2013
No. OCH412
REVISED EDITION-G
SERVICE MANUAL
Indoor unit
[Model Name]
Revision:
• Added connectable outdoor unit
SUZ-KA35/50/60/71VA4.TH
in REVISED EDITION-G.
• Some descriptions have been
modified.
PLA-RP35BA
PLA-RP50BA
PLA-RP60BA
PLA-RP71BA
PLA-RP100BA
PLA-RP125BA
PLA-RP140BA
PLA-RP71BA2
PLA-RP100BA2
PLA-RP125BA2
PLA-RP140BA2
• Please void OCH412
REVISED EDITION-F.
NOTE:
• This manual describes only
service data of the indoor
units.
• RoHS compliant products
have <G> mark on the spec
name plate.
[Service Ref.]
Refer to page 2.
CONTENTS
1. TECHNICAL CHANGES.................................. 2
2. REFERENCE MANUAL .................................. 3
3. SAFETY PRECAUTION .................................. 4
4. PARTS NAMES AND FUNCTIONS ................ 5
5. SPECIFICATIONS ......................................... 13
6. NOISE CRITERION CURVES ....................... 17
7. OUTLINES AND DIMENSIONS..................... 19
8. WIRING DIAGRAM ........................................ 20
9. REFRIGERANT SYSTEM DIAGRAM ........... 22
10. TROUBLESHOOTING ................................... 23
11. SPECIAL FUNCTION .................................... 39
12. DISASSEMBLY PROCEDURE ...................... 49
Model name
indication
INDOOR UNIT
ON/OFF
TEMP
TEMP.
ON/OFF
PARTS CATALOG (OCB412)
WIRELESS REMOTE
CONTROLLER
WIRED REMOTE
CONTROLLER
[Service Ref.]
PLA-RP35BA.UK
PLA-RP35BA1.UK
PLA-RP35BA#2.UK
PLA-RP35BAR3.UK
PLA-RP50BA.UK
PLA-RP50BA1.UK
PLA-RP50BA#2.UK
PLA-RP50BAR3.UK
PLA-RP60BA.UK
PLA-RP60BA1.UK
PLA-RP60BA#2.UK
PLA-RP60BAR3.UK
PLA-RP71BA.UK
PLA-RP71BA1.UK
PLA-RP71BA#2.UK
PLA-RP71BAR3.UK
PLA-RP100BA.UK
PLA-RP100BA#2.UK
PLA-RP125BA.UK
PLA-RP125BA#2.UK
PLA-RP140BA.UK
PLA-RP140BA#2.UK
1
PLA-RP71BA2.UK
PLA-RP100BA2.UK
PLA-RP125BA2.UK
PLA-RP140BA2.UK
TECHNICAL CHANGES
PLA-RP35BA#2.UK
PLA-RP50BA#2.UK
PLA-RP60BA#2.UK
PLA-RP71BA#2.UK
PLA-RP35BAR3.UK
PLA-RP50BAR3.UK
PLA-RP60BAR3.UK
PLA-RP71BAR3.UK
INDOOR CONTROLLER BOARD (I.B.) has been changed. (S/W version up)
PLP-6BAJ (Automatic filter elevation panel, option)
The controller board (I.B) has been changed. (only for the panel but not for the service part)
PLA-RP140BA#2.UK
PLA-RP140BA2.UK
HEAT EXCHANGER has been changed.
INDOOR CONTROLELR BOARD (I.B.) has been changed. (S/W version up)
PLA-RP35BA1.UK
PLA-RP50BA1.UK
PLA-RP60BA1.UK
PLA-RP71BA1.UK
PLA-RP100BA.UK
PLA-RP125BA.UK
PLA-RP140BA.UK
PLA-RP35BA#2.UK
PLA-RP50BA#2.UK
PLA-RP60BA#2.UK
PLA-RP71BA#2.UK
PLA-RP100BA#2.UK
PLA-RP125BA#2.UK
PLA-RP140BA#2.UK
INDOOR CONTROLELR BOARD (I.B.) has been changed. (S/W version up)
PLA-RP35BA.UK
PLA-RP50BA.UK
PLA-RP60BA.UK
PLA-RP71BA.UK
PLA-RP35BA1.UK
PLA-RP50BA1.UK
PLA-RP60BA1.UK
PLA-RP71BA1.UK
FAN MOTOR (MF) has been changed.
TURBO FAN, NUT and WASHER have been changed.
OCH412G
2
2
REFERENCE MANUAL
OUTDOOR UNIT’S SERVICE MANUAL
Service Ref.
Service Manual No.
SUZ-KA35/50/60/71VA3.TH
OCH530/OCB530
SUZ-KA35/50/60/71VA4.TH
OCH545/OCB545
PUHZ-RP200/250YHA(1)(2)
OC338
SUZ-KA·VA(1).TH
SUZ-KA.VAR2.TH
OC322
PUHZ-RP35/50/60/71/100/125/140VHA2(1)
PUHZ-RP125/140VHA2#2
PUHZ-RP35/50/60/71/100VHA3(#1)
PUHZ-RP100/125/140YHA2(1)
PUHZ-RP125/140YHA2#2
PUHZ-RP100YHA3(#1)
PU(H)-P71/100VHA(1).UK
PU(H)-P71/100VHA#2.UK
PU(H)-P71/100VHAR3.UK
PU(H)-P71/100/125/140YHA(1).UK
PU(H)-P71/100/125/140YHA㸡2.UK
PU(H)-P71/100/125/140YHAR3.UK
OC374
OC379
PUHZ-P100/125/140VHA2(1).UK
PUHZ-P100/125/140VHA3(R1).UK
OCH415/OCB415
OC316
MXZ-8A140VA2/VA3
PUHZ-P200/250YHA(3)
OCH424/OCB424
PUHZ-HRP71/100VHA(2)
PUHZ-HRP100/125YHA(2)
OCH425/OCB425
PUHZ-RP200/250YHA2
OCH428/OCB428
PUHZ-RP35/50/60/71VHA4
PUHZ-RP100/125/140VKA
PUHZ-RP100/125/140/200/250YKA
OCH451/OCB451
OCH412G
3
3
SAFETY PRECAUTION
3-1. ALWAYS OBSERVE FOR SAFETY
Before obtaining access to terminal, all supply
circuits must be disconnected.
3-2. CAUTIONS RELATED TO NEW REFRIGERANT
Cautions for units utilising refrigerant R410A
Use new refrigerant pipes.
Do not use refrigerant other than R410A.
In case of using the existing pipes for R22, be careful with
the followings.
· For RP100, 125 and 140, be sure to perform replacement operation before test run.
· Change flare nut to the one provided with this product.
Use a newly flared pipe.
· Avoid using thin pipes.
If other refrigerant (R22 etc.) is used, chlorine in refrigerant can cause deterioration of refrigerant oil etc.
Make sure that the inside and outside of refrigerant piping is clean and it has no contaminants
such as sulfur, oxides, dirt, shaving particles, etc,
which are hazard to refrigerant cycle.
In addition, use pipes with specified thickness.
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.
Gauge manifold
Charge hose
Gas leak detector
Torque wrench
Contamination inside refrigerant piping can cause deterioration of refrigerant oil etc.
Store the piping indoors, and both ends of the
piping sealed until just before brazing.
(Leave elbow joints, etc. in their packaging.)
Tools for R410A
Flare tool
Size adjustment gauge
Vacuum pump adaptor
Electronic refrigerant
charging scale
Handle tools with care.
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of compressor.
The refrigerant oil applied to flare and flange
connections must be ester oil, ether oil or
alkylbenzene oil in a small amount.
If large amount of mineral oil enters, that can cause deterioration of refrigerant oil etc.
If dirt, dust or moisture enters 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.
Charge refrigerant from liquid phase of gas
cylinder.
Use the specified refrigerant only.
If the refrigerant is charged from gas phase, composition
change may occur in refrigerant and the efficiency will be
lowered.
Never use any refrigerant other than that specified.
Doing so may cause a burst, an explosion, or fire when the
unit is being used, serviced, or disposed of.
Correct refrigerant is specified in the manuals and on the
spec labels provided with our products.
We will not be held responsible for mechanical failure,
system malfunction, unit breakdown or accidents caused
by failure to follow the instructions.
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 recovering 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.
OCH412G
4
[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.)
Unit
Gravimeter
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No.
Tool name
Gauge manifold
Specifications
· Only for R410A
· Use the existing fitting specifications. (UNF1/2)
· Use high-tension side pressure of 5.3MPa·G or over.
Charge hose
· Only for R410A
· Use pressure performance of 5.09MPa·G or over.
—
Electronic scale
Gas leak detector
· Use the detector for R410A.
Adaptor for reverse flow check
· Attach on vacuum pump.
—
Refrigerant charge base
Refrigerant cylinder
· Only for R410A
· Top of cylinder (Pink)
· Cylinder with syphon
—
Refrigerant recovery equipment
4
PARTS NAMES AND FUNCTIONS
4-1. INDOOR UNIT
Drain pipe
Filter
Air outlet
Liquid pipe
Gas pipe
i-see sensor
(option)
Vane
OCH412G
Air intake
(Intake grille)
5
4-2. WIRELESS REMOTE CONTROLLER
CHECK TEST RUN display
CHECK and TEST RUN display indicate that
the unit is being checked or test-run.
MODEL SELECT display
Blinks when model is selected.
display
Lights up while the signal is transmitted to
the indoor unit when the button is pressed.
display
SET TEMP. display indicates the desired
temperature which is set.
CLOCK display
display
Displays the current time.
OPERATION MODE display
Operation mode display indicates which
operation mode is in effect.
TIMER display
CHECK TEST RUN
MODEL SELECT
°C
AMPM
Displays when in timer operation or when
setting timer.
“
AMPM
NOT AVAILABLE
display
The vertical direction of air flow is indicated.
ON/OFF
“
TEMP
”“
” display
Displays the order of timer operation.
”“
” display
Displays whether timer is on or off.
display
button
FAN SPEED display indicates which fan
speed has been selected.
FAN
AUTO STOP
VANE
AUTO START
SET TEMPERATURE button sets any desired
room temperature.
ON/OFF button
The unit is turned ON and OFF alternately
MODE
each time the button is pressed.
CHECK LOUVER
h
FAN SPEED SELECT button
Used to change the fan speed.
MODE SELECT button
TEST RUN
SET
min
RESET
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.
CLOCK
Used to switch the operation mode between
cooling, drying, heating, auto and fan mode.
h and min buttons
Buttons used to set the “hour and minute” of
the current time and timer settings.
LOUVER button
CHECK-TEST RUN button
Changes left/right airflow direction.
(Not available for this model.)
Only press this button to perform an
inspection check or test operation.
Do not use it for normal operation.
CLOCK button
VANE CONTROL button
RESET button
Used to change the air flow direction.
SET button
OCH412G
6
4-3. WIRED REMOTE CONTROLLER <PAR-30MAA/PAR-31MAA>
Wired remote controller function
* The functions which can be used are restricted according to the model.
: Supported
PAR-30MAA/PAR-31MAA
Function
Body
Slim
Product size H × W × D (mm)
LCD
: Unsupported
PAR-21MAA
City multi
120 × 120 × 19
120 × 130 × 19
Full Dot LCD
Partial Dot LCD
Backlight
Energy-saving
Energy-saving operation schedule
Restriction
Setting the temperature range restriction
Function
Operation lock function
Automatic return to the preset temperature
Weekly timer
On / Off timer
High Power
Manual vane angle
The functions of the function buttons change depending on
the screen. Refer to the button function guide that appears
at the bottom of the LCD for the functions they serve on a
given screen.
When the system is centrally controlled, the button function
guide that corresponds to the locked button will not appear.
<Main display>
<Main menu>
Fri
Room
Cool
Set temp.
Auto
Mode
Temp.
Fan
Function buttons
F1
F2
F3
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
Main display:
Cursor
Page
Function guide
F4
ON / OFF lamp
ON / OFF button
This lamp lights up in green while the unit is in operation.
It blinks while the remote controller is starting up or when
there is an error.
Press to turn ON/OFF the indoor unit.
SELECT button
Press to save the setting.
Function button F1
Main display : Press to change the operation mode.
Main menu : Press to move the cursor down.
RETURN button
Press to return to the previous screen.
Function button F2
MENU button
Main display : Press to decrease temperature.
Main menu : Press to move the cursor up.
Press to bring up the Main menu.
Backlit LCD
Function button F3
Operation settings will appear.
When the backlight is off, pressing any button turns the
backlight on and it will stay lit for a certain period of time
depending on the screen.
When the backlight is off, pressing any button turns
the backlight on and does not perform its function.
(except for the
(ON / OFF) button)
OCH412G
Main
7
Main display : Press to increase temperature.
Main menu : Press to go to the previous page.
Function button F4
Main display : Press to change the fan speed.
Main menu : Press to go to the next page.
The main display can be displayed in two different modes: "Full" and "Basic".
The initial setting is "Full". To switch to the "Basic" mode, change the setting on the Main display setting.
<Full mode>
<Basic mode>
* All icons are displayed for explanation.
Fri
Fri
Cool
Room
Cool
Set temp.
Mode
Temp.
Set temp.
Auto
Auto
Mode
Fan
Temp.
Fan
Operation mode
Indoor unit operation mode appears here.
Appears when the buttons are locked.
Preset temperature
Preset temperature appears here.
Clock (See the Installation Manual.)
Appears when the On/Off timer or Night setback function is
enabled.
Current time appears here.
Fan speed
Fan speed setting appears here.
Appears when the Weekly timer is enabled.
Button function guide
Functions of the corresponding buttons appear here.
Appears while the units are operated in the energy-save
mode.
Appears when the ON/OFF operation is centrally controlled.
Appears when the operation mode is centrally controlled.
Appears when the built-in thermistor on the remote controller is activated to monitor the room temperature (a).
appears when the thermistor on the indoor unit is activated to monitor the room temperature.
Appears when the preset temperature is centrally controlled.
Indicates the vane setting.
Appears when the filter reset function is centrally controlled.
Indicates the louver setting.
Indicates when filter needs maintenance.
Room temperature
(See the Installation Manual.)
Indicates the ventilation setting.
Current room temperature appears here.
Appears when the preset temperature range is restricted.
Most settings (except ON / OFF, mode, fan speed, temperature) can be made from the Menu screen.
OCH412G
8
Menu structure
Main menu
Press the MENU button.
Move the cursor to the desired item with the
F1
and
F2
buttons, and press the SELECT button.
Vane · Louver · Vent. (Lossnay)
High power
Timer
On / Off timer
Auto-Off timer
Filter information
Error information
Weekly timer
Energy saving
Auto return
Schedule
Night setback
Restriction
Temp. range
Operation lock
Maintenance
Auto descending panel
Manual vane angle
Initial setting
Main / Sub
Clock
Main display
Contrast
Display details
Auto mode
Administrator password
Language selection
Service
Service menu
Test run
Drain pump test run
Input maintenance info.
Function setting
Lossnay (City Multi only)
Check
Self check
Maintenance password
Remote controller check
Not all functions are available on all models of indoor units.
OCH412G
9
Main menu list
Setting and display items
Setting details
Vane · Louver · Vent.
(Lossnay)
Use to set the vane angle.
• Select a desired vane setting from five different settings.
Use to turn ON / OFF the louver.
• Select a desired setting from "ON" and "OFF."
Use to set the amount of ventilation.
• Select a desired setting from "Off," "Low," and "High."
High power
Use to reach the comfortable room temperature quickly.
• Units can be operated in the High-power mode for up to 30 minutes.
Timer
On/Off timer
Use to set the operation On/Off times.
• Time can be set in 5-minute increments.
* Clock setting is required.
Auto-Off
timer
Use to set the Auto-Off time.
• Time can be set to a value from 30 to 240 in 10-minute increments.
Filter information
Use to check the filter status.
• The filter sign can be reset.
Error information
Use to check error information when an error occurs.
• Error code, error source, refrigerant address, unit model, manufacturing number, contact
information (dealer's phone number) can be displayed.
* The unit model, manufacturing number, and contact information need to be registered in
advance to be displayed.
Weekly timer
Use to set the weekly operation On / Off times.
• Up to eight operation patterns can be set for each day.
* Clock setting is required.
* Not valid when the On/Off timer is enabled.
Energy
saving
Auto return
Use to get the units to operate at the preset temperature after performing energy-save
operation for a specified time period.
• Time can be set to a value from 30 and 120 in 10-minute increments.
* This function will not be valid when the preset temperature ranges are restricted.
Schedule
Set the start/stop times to operate the units in the energy-save mode for each day of the
week, and set the energy-saving rate.
• Up to four energy-save operation patterns can be set for each day.
• Time can be set in 5-minute increments.
• Energy-saving rate can be set to a value from 0% or 50 to 90% in 10% increments.
* Clock setting is required.
Night setback
Restriction
Use to make Night setback settings.
• Select "Yes" to enable the setting, and "No" to disable the setting. The temperature range and
the start/stop times can be set.
* Clock setting is required.
Temp. range
Use to restrict the preset temperature range.
• Different temperature ranges can be set for different operation modes.
Operation
lock
Use to lock selected functions.
• The locked functions cannot be operated.
Maintenance Auto
descending
panel
Manual
vane angle
Initial setting Main/Sub
Clock
Auto descending panel (Optional parts) Up / Down you can do.
Use to set the vane angle for each vane to a fixed position.
When connecting two remote controllers, one of them needs to be designated as a sub
controller.
Use to set the current time.
Main display Use to switch between "Full" and "Basic" modes for the Main display.
• The initial setting is "Full."
Contrast
OCH412G
Use to adjust screen contrast.
10
Setting and display items
Initial setting Display
details
Auto mode
Setting details
Make the settings for the remote controller related items as necessary.
Clock: The initial settings are "Yes" and "24h" format.
Temperature: Set either Celsius (°C) or Fahrenheit (°F).
Room temp. : Set Show or Hide.
Auto mode: Set the Auto mode display or Only Auto display.
Whether or not to use the AUTO mode can be selected by using the button.
This setting is valid only when indoor units with the AUTO mode function are connected.
Administrator The administrator password is required to make the settings for the following items.
password
• Timer setting • Energy-save setting • Weekly timer setting
• Restriction setting • Outdoor unit silent mode setting • Night set back
Service
Language
selection
Test run
Use to select the desired language.
Select "Test run" from the Service menu to bring up the Test run menu.
• Test run • Drain pump test run
Input
Select "Input maintenance Info." from the Service menu to bring up the Maintenance
maintenance information screen.
The following settings can be made from the Maintenance Information screen.
• Model name input • Serial No. input • Dealer information input
Function
Make the settings for the indoor unit functions via the remote controller as necessary.
setting
This setting is required only when the operation of City Multi units is interlocked with
LOSSNAY
LOSSNAY units.
setting
(City Multi only)
Check
Error history: Display the error history and execute delete error history.
Refrigerant leak check: Refrigerant leaks can be judged.
Smooth maintenance: The indoor and outdoor maintenance data can be displayed.
Request cord: Details of the operation data including each thermistor temperature and error
history can be checked.
Self check
Error history of each unit can be checked via the remote controller.
Maintenance Take the following steps to change the maintenance password.
password
Remote
When the remote controller does not work properly, use the remote controller checking
controller
function to troublushoot the problem.
check
OCH412G
11
4-4. WIRED REMOTE CONTROLLER <PAR-21MAA>
“Sensor” indication
Display Section
For purposes of this explanation,
all parts of the display are shown.
During actual operation, only
the relevant items will be lit.
Displayed when the remote controller
sensor is used.
Day-of-Week
Shows the current day of the week.
Time/Timer Display
“Locked” indicator
Shows the current time, unless the simple or Auto Off
timer is set.
If the simple or Auto Off timer is set, the time to be
switched off is shown.
Indicates that remote controller buttons have been locked.
Identifies the current operation
“Clean The Filter” indicator
Shows the operating mode, etc.
*Multilanguage display is available.
To be displayed on when it is time to
clean the filter.
TIME SUN MON TUE WED THU FRI SAT
TIMER
Hr
ON
AFTER
Indicates that operation from the
remote controller has been prohibited by a master controller.
FUNCTION
FILTER
°F°C
°F°C
“Centrally Controlled” indicator
Timer indicators
AFTER OFF
ERROR CODE
The indicator comes on if the corresponding timer is set.
WEEKLY
SIMPLE
AUTO OFF
ONLY1Hr.
Fan Speed indicator
Shows the selected fan speed.
“Timer is Off” indicator
Indicates that the timer is off.
Up/Down Air Direction indicator
The indicator
shows the direction of the outcoming airflow.
Room Temperature display
Shows the room temperature. The room
temperature display range is 8 – 39.
The display blinks if the temperature
is less than 8 or 39 or more.
Ventilation indicator
Appears when the unit is running in
Ventilation mode.
“One Hour Only” indicator
Temperature Setting
Shows the target temperature.
Displayed if the airflow is set to
low or downward during COOL
or DRY mode. (Operation varies
according to model.)
The indicator goes off in 1 hour,
when the airflow direction
also changes.
Louver display
Indicates the action of the swing louver.
Does not appear if the louver is not
running.
(Power On indicator)
Indicates that the power is on.
Operation Section
ON/OFF button
Temperature setting buttons
Down
Fan Speed button
Up
Timer Menu button
(Monitor/Set button)
Filter
button
(<Enter> button)
Mode button (Return button)
TEMP.
ON/OFF
Set Time buttons
Check button (Clear button)
Back
Ahead
Timer On/Off button
(Set Day button)
Test Run button
MENU
BACK
PAR-21MAA
MONITOR/SET
ON/OFF
FILTER
DAY
CHECK TEST
OPERATION
CLOCK
Airflow Up/Down button
CLEAR
Louver button
(
Operation button)
To return operation
number
Opening the
cover
Built-in temperature sensor
Ventilation button
( Operation button)
To go to next operation
number
Note:
L “PLEASE WAIT” message
This message is displayed for approximately 3 minutes when power is supplied to the indoor unit or when the unit is recovering from a power failure.
L “NOT AVAILABLE” message
This message is displayed if an invalid button is pressed (to operate a function that the indoor unit does not have).
If a single remote controller is used to operate multiple indoor units simultaneously that are different types, this message will not be displayed as
far as any of the indoor units is equipped with the function.
OCH412G
12
5
SPECIFICATIONS
PLA-RP35BA.UK
PLA-RP35BA1.UK
PLA-RP35BA#2.UK PLA-RP35BAR3.UK
Cooling
Heating
Single phase, 50Hz, 230V
0.03
0.02
0.22
0.14
Munsell 6.4Y 8.9/0.4
Plate fin coil
Turbo fan (direct) o 1
0.050
11-12-13-15(390-425-460-530)
0(direct blow)
–
Remote controller & built-in
27-28-29-31
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: 258 (10-3/16)
PANEL: 35 (1-3/8)
UNIT: 22 (49)
PANEL: 6 (13)
INDOOR UNIT
Service Ref.
Mode
Power supply (phase, cycle, voltage)
Input
kW
Running current
A
External finish (Panel)
Heat exchanger
Fan
Fan (drive) o No.
Fan motor output
kW
Airflow (Low-Medium2-Medium1-High) K/min(CFM)
External static pressure
Pa(mmAq)
Booster heater
kW
Operation control & Thermostat
Noise level (Low-Medium2-Medium1-High)
dB
Field drain pipe O.D.
mm(in)
Dimensions
mm(in)
W
mm(in)
D
mm(in)
H
Weight
kg(lbs)
PLA-RP50BA.UK
PLA-RP50BA1.UK
PLA-RP50BA#2.UK PLA-RP50BAR3.UK
Cooling
Heating
Single phase, 50Hz, 230V
0.05
0.04
0.36
0.29
Munsell 6.4Y 8.9/0.4
Plate fin coil
Turbo fan (direct) o 1
0.050
12-14-16-18(425-495-565-635)
0(direct blow)
–
Remote controller & built-in
28-29-31-32
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: 258 (10-3/16)
PANEL : 35 (1-3/8)
UNIT: 22 (49)
PANEL: 6 (13)
INDOOR UNIT
Service Ref.
Mode
Power supply (phase, cycle, voltage)
Input
kW
Running current
A
External finish (Panel)
Heat exchanger
Fan
Fan (drive) o No.
Fan motor output
kW
Airflow (Low-Medium2-Medium1-High) K/min(CFM)
External static pressure
Pa(mmAq)
Booster heater
kW
Operation control & Thermostat
Noise level (Low-Medium2-Medium1-High)
dB
Field drain pipe O.D.
mm(in)
Dimensions
mm(in)
W
mm(in)
D
mm(in)
H
Weight
kg(lbs)
PLA-RP60BA.UK
PLA-RP60BA1.UK
PLA-RP60BA#2.UK PLA-RP60BAR3.UK
Cooling
Heating
Single phase, 50Hz, 230V
0.05
0.04
0.36
0.29
Munsell 6.4Y 8.9/0.4
Plate fin coil
Turbo fan (direct) o 1
0.050
12-14-16-18(425-495-565-635)
0(direct blow)
–
Remote controller & built-in
28-29-31-32
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: 258 (10-3/16)
PANEL : 35 (1-3/8))
UNIT: 23 (51)
PANEL: 6 (13)
INDOOR UNIT
Service Ref.
Mode
Power supply (phase, cycle, voltage)
kW
Input
A
Running current
External finish (Panel)
Heat exchanger
kW
Fan
Fan (drive) o No.
K/min(CFM)
Fan motor output
Pa(mmAq)
Airflow (Low-Medium2-Medium1-High)
kW
External static pressure
Booster heater
Operation control & Thermostat
dB
Noise level (Low-Medium2-Medium1-High)
mm(in)
Field drain pipe O.D.
W
mm(in)
Dimensions
D
mm(in)
H
mm(in)
kg(lbs)
Weight
OCH412G
13
Mode
Power supply (phase, cycle, voltage)
Input
kW
Running current
A
External finish (Panel)
Heat exchanger
Fan
Fan (drive) o No.
Fan motor output
kW
Airflow (Low-Medium2-Medium1-High) K/min(CFM)
External static pressure
Pa(mmAq)
Booster heater
kW
Operation control & Thermostat
Noise level (Low-Medium2-Medium1-High)
dB
Field drain pipe O.D.
mm(in)
Dimensions
mm(in)
W
mm(in)
D
mm(in)
H
Weight
kg(lbs)
PLA-RP71BA.UK
PLA-RP71BA1.UK
PLA-RP71BA#2.UK PLA-RP71BAR3.UK
Cooling
Heating
Single phase, 50Hz, 230V
0.07
0.06
0.51
0.43
Munsell 6.4Y 8.9/0.4
Plate fin coil
Turbo fan (direct) o 1
0.050
14-16-18-21(485-565-635-740)
0(direct blow)
–
Remote controller & built-in
28-30-32-34
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: 258 (10-3/16)
PANEL : 35 (1-3/8)
UNIT: 23 (51)
PANEL: 6 (13)
INDOOR UNIT
Service Ref.
Mode
Power supply (phase, cycle, voltage)
Input
kW
Running current
A
External finish (Panel)
Heat exchanger
Fan
Fan (drive) o No.
Fan motor output
kW
Airflow (Low-Medium2-Medium1-High) K/min(CFM)
External static pressure
Pa(mmAq)
Booster heater
kW
Operation control & Thermostat
Noise level (Low-Medium2-Medium1-High)
dB
Field drain pipe O.D.
mm(in)
Dimensions
W
mm(in)
D
mm(in)
H
mm(in)
Weight
kg(lbs)
PLA-RP100BA.UK PLA-RP100BA#2.UK
Cooling
Heating
Single phase, 50Hz, 230V
0.14
0.13
0.94
0.87
Munsell 6.4Y 8.9/0.4
Plate fin coil
Turbo fan (direct) o 1
0.120
20-23-26-30(710-810-920-1,060)
0(direct blow)
–
Remote controller & built-in
32-34-37-40
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: 35 (1-3/8)
UNIT : 25 (55)
PANEL: 6 (13)
INDOOR UNIT
Service Ref.
Mode
Power supply (phase, cycle, voltage)
Input
kW
Running current
A
External finish (Panel)
Heat exchanger
Fan
Fan (drive) o No.
Fan motor output
kW
Airflow (Low-Medium2-Medium1-High) K/min(CFM)
External static pressure
Pa(mmAq)
Booster heater
kW
Operation control & Thermostat
Noise level (Low-Medium2-Medium1-High)
dB
Field drain pipe O.D.
mm(in)
Dimensions
mm(in)
W
mm(in)
D
mm(in)
H
Weight
kg(lbs)
PLA-RP125BA.UK PLA-RP125BA#2.UK
Cooling
Heating
Single phase, 50Hz, 230V
0.15
0.14
1.00
0.94
Munsell 6.4Y 8.9/0.4
Plate fin coil
Turbo fan (direct) o 1
0.120
22-25-28-31(780-880-990-1,090)
0(direct blow)
–
Remote controller & built-in
34-36-39-41
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: 35 (1-3/8)
UNIT : 25 (55)
PANEL: 6 (13)
INDOOR UNIT
Service Ref.
OCH412G
14
INDOOR UNIT
Service Ref.
Mode
Power supply (phase, cycle, voltage)
Input
kW
Running current
A
External finish (Panel)
Heat exchanger
Fan
Fan(drive) o No.
Fan motor output
kW
Airflow (Low-Medium2-Medium1-High) K/min(CFM)
External static pressure
Pa(mmAq)
Booster heater
kW
Operation control & Thermostat
Noise level (Low-Medium2-Medium1-High)
dB
Field drain pipe O.D.
mm(in)
Dimensions
mm(in)
W
mm(in)
D
mm(in)
H
Weight
kg(lbs)
INDOOR UNIT
Service Ref.
Mode
Power supply (phase, cycle, voltage)
Input
kW
Running current
A
External finish (Panel)
Heat exchanger
Fan
Fan (drive) o No.
Fan motor output
kW
Airflow (Low-Medium2-Medium1-High) K/min(CFM)
External static pressure
Pa(mmAq)
Booster heater
kW
Operation control & Thermostat
Noise level (Low-Medium2-Medium1-High)
dB
Field drain pipe O.D.
mm(in)
Dimensions
mm(in)
W
mm(in)
D
mm(in)
H
Weight
kg(lbs)
INDOOR UNIT
Service Ref.
Mode
Power supply (phase, cycle, voltage)
Input
kW
Running current
A
External finish (Panel)
Heat exchanger
Fan
Fan (drive) o No.
Fan motor output
kW
Airflow (Low-Medium2-Medium1-High) K/min(CFM)
External static pressure
Pa(mmAq)
Booster heater
kW
Operation control & Thermostat
Noise level (Low-Medium2-Medium1-High)
dB
Field drain pipe O.D.
mm(in)
Dimensions
W
mm(in)
D
mm(in)
H
mm(in)
Weight
kg(lbs)
OCH412G
PLA-RP140BA.UK PLA-RP140BA#2.UK
Cooling
Heating
Single phase, 50Hz, 230V
0.16
0.15
1.07
1.00
Munsell 6.4Y 8.9/0.4
Plate fin coil
Turbo fan (direct) o 1
0.120
24-26-29-32(850-920-1,020-1,130)
0(direct blow)
–
Remote controller & built-in
36-39-42-44
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: 35 (1-3/8)
UNIT: 27 (60)
PANEL: 6 (13)
PLA-RP71BA2.UK
Cooling
Heating
Single phase, 50Hz, 230V
0.07
0.51
0.06
0.43
Munsell 6.4Y 8.9/0.4
Plate fin coil
Turbo fan (direct) o 1
0.050
14-16-18-21(485-565-635-740)
0(direct blow)
–
Remote controller & built-in
28-30-32-34
32(1-1/4)
PANEL: 950 (37-3/8)
UNIT: 840 (33-1/16)
UNIT: 840 (33-1/16)
PANEL: 950 (37-3/8)
UNIT: 258 (10-3/16)
PANEL: 35 (1-3/8)
UNIT: 23 (51)
PANEL: 6 (13)
PLA-RP100BA2.UK
Cooling
Heating
Single phase, 50Hz, 230V
0.15
1.00
0.14
0.94
Munsell 6.4Y 8.9/0.4
Plate fin coil
Turbo fan (direct) o 1
0.120
20-23-26-30(710-810-920-1,060)
0(direct blow)
–
Remote controller & built-in
32-34-37-40
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: 35 (1-3/8)
UNIT
: 27(60)
PANEL: 6 (13)
15
INDOOR UNIT
Service Ref.
Mode
Power supply (phase, cycle, voltage)
Input
kW
Running current
A
External finish (Panel)
Heat exchanger
Fan
Fan (drive) o No.
Fan motor output
kW
Airflow (Low-Medium2-Medium1-High) K/min(CFM)
External static pressure
Pa(mmAq)
Booster heater
kW
Operation control & Thermostat
Noise level (Low-Medium2-Medium1-High)
dB
Field drain pipe O.D.
mm(in)
Dimensions
mm(in)
W
mm(in)
D
mm(in)
H
Weight
kg(lbs)
INDOOR UNIT
Service Ref.
Mode
Power supply (phase, cycle, voltage)
Input
kW
Running current
A
External finish (Panel)
Heat exchanger
Fan
Fan(drive) o No.
Fan motor output
kW
Airflow (Low-Medium2-Medium1-High) K/min(CFM)
External static pressure
Pa(mmAq)
Booster heater
kW
Operation control & Thermostat
Noise level (Low-Medium2-Medium1-High)
dB
Field drain pipe O.D.
mm(in)
Dimensions
mm(in)
W
mm(in)
D
mm(in)
H
Weight
kg(lbs)
OCH412G
PLA-RP125BA2.UK
Cooling
Heating
Single phase, 50Hz, 230V
0.16
1.07
0.15
1.00
Munsell 6.4Y 8.9/0.4
Plate fin coil
Turbo fan (direct) o 1
0.120
22-25-28-31(780-880-990-1,090)
0(direct blow)
–
Remote controller & built-in
34-36-39-41
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: 35 (1-3/8)
UNIT: 27(60)
PANEL: 6 (13)
PLA-RP140BA2.UK
Cooling
Heating
Single phase, 50Hz, 230V
0.16
1.07
0.15
1.00
Munsell 6.4Y 8.9/0.4
Plate fin coil
Turbo fan (direct) o 1
0.120
24-26-29-32(850-920-1,020-1,130)
0(direct blow)
–
Remote controller & built-in
36-39-42-44
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: 35 (1-3/8)
UNIT : 27 (60)
PANEL: 6 (13)
16
6
NOISE CRITERION CURVES
PLA-RP35BA.UK
PLA-RP35BA1.UK
PLA-RP35BA#2.UK
PLA-RP35BAR3.UK
NOTCH SPL(dB)
High
31
Medium1
29
Medium2
28
Low
27
LINE
PLA-RP50BA.UK
PLA-RP50BA1.UK
PLA-RP50BA#2.UK
PLA-RP50BAR3.UK
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
20
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
125
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
20
NC-20
250
500
1000
2000
4000
10
8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
125
BAND CENTER FREQUENCIES, Hz
PLA-RP60BA.UK
PLA-RP60BA1.UK
PLA-RP60BA#2.UK
PLA-RP60BAR3.UK
NOTCH SPL(dB)
High
32
Medium1
31
Medium2
29
Low
28
LINE
500
PLA-RP71BA.UK
PLA-RP71BA1.UK
PLA-RP71BA#2.UK
PLA-RP71BA2.UK
PLA-RP71BAR3.UK
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
125
1000
2000
4000
8000
NOTCH SPL(dB)
High
34
Medium1
32
Medium2
30
Low
28
LINE
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
20
NC-20
250
500
1000
2000
4000
8000
BAND CENTER FREQUENCIES, Hz
OCH412G
OCTAVE .UKND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)
250
90
80
10
NC-20
BAND CENTER FREQUENCIES, Hz
90
20
LINE
90
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)
90
NOTCH SPL(dB)
High
32
Medium1
31
Medium2
29
Low
28
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
125
NC-20
250
500
1000
2000
BAND CENTER FREQUENCIES, Hz
17
4000
8000
PLA-RP100BA.UK
PLA-RP100BA#2.UK
PLA-RP100BA2.UK
NOTCH SPL(dB)
High
40
Medium1
37
Medium2
34
Low
32
LINE
PLA-RP125BA.UK
PLA-RP125BA#2.UK
PLA-RP125BA2.UK
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
20
10
LINE
90
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
125
NC-20
250
500
1000
2000
4000
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)
90
NOTCH SPL(dB)
High
41
Medium1
39
Medium2
36
Low
34
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
20
10
8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
BAND CENTER FREQUENCIES, Hz
PLA-RP140BA.UK
PLA-RP140BA#2.UK
PLA-RP140BA2.UK
125
NC-20
250
500
1000
2000
4000
8000
BAND CENTER FREQUENCIES, Hz
NOTCH SPL(dB)
High
44
Medium1
42
Medium2
39
Low
36
LINE
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)
90
80
UNIT
70
CEILING
NC-70
60
NC-60
50
NC-50
1.5m
40
NC-40
30
MICROPHONE
NC-30
20
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
125
NC-20
250
500
1000
2000
4000
8000
BAND CENTER FREQUENCIES, Hz
OCH412G
18
7
OUTLINES AND DIMENSIONS
PLA-RP35/50/60/71/100/125/140BA.UK
PLA-RP35/50/60/71BA1.UK
PLA-RP35/50/60/71/100/125/140BA#2.UK
PLA-RP35/50/60/71BAR3.UK
PLA-RP71/100/125/140BA2.UK
Suspension bolt pitch
Detail connecting of branch duct(Both aspects)
100
100
90
Cut out hole
100
90
860~910
620
Ceiling hole
Indoor power supply
terminal block(Optional parts)
605
Suspension bolt pitch
840
Branch duct hole
155
Remote controller
terminal block
Indoor unit/Outdoor unit
connecting terminal block
Branch duct hole
{175
350
167
70°
160
(7.5)
160
20~45
Fresh air
intake hole
Unit: mm
20~45
860~910
810
130
Ceiling hole
20~45
14-[2.8
Burring hole
Burring hole pitch
[150
Detail drawing of fresh air intake hole
(7.5)
24
160
D
C
90
150
Cut out hole
20~45
Burring hole
160
840
1
60
284
(
Connected the attached
Drain pipe
connected to VP-25 flexible pipe or socket.
377
190
156
105
140
B
Keep approximately
10 to 15mm space
between unit ceiling
and ceiling slab.
)
Cut out hole
[100
Ceiling
Control wire entry
Power supply wire,
Indoor unit/Outdoor unit
connecting wire entry
Ceiling
35
In case of standard grille : PLP-6BA / PLP-6BAMD
17 +50
Suspension bolt
lower edge
50~70
170
A
2
Burring hole pitch
[125
120°
158
Suspension bolt
M10 or W3/8
3-[2.8
120°
187.5
Grille
597
Drain hole
Drain pump clean hole
and Drain emergency
drainage hole
M
597
Auto vane
(Air outlet)
switch<Cooling>and
Emergency Up/Down switch<Up>
Emergency operation
switch<Heating>and
Emergency Up/Down switch<Down>
Air intake hole
500
Air outlet hole
950
M
In case of auto-grille : PLP-6BAJ
In case of wireless remote controller : PLP-6BALM Auto grille
Air intake grille up/down distance
Emergency operation
Ceiling
L.L Filter
Air intake grille
DEFROST/STAND BY lamp
Receiver
M
Operation lamp
83
M
36
500
83
36
Air outlet hole
950
Indoor unit
Ceiling
Grille
1500mm
or more
1000mm
or more
Indoor unit
3000mm or more
Obstacle
2500mm or more
from floor
For high
attachment
Air intake grille
UNIT
Vane motor
Note1. Please choose the grille from a standard grille, auto-grille.
2. As for drain pipe, please use VP-25(O.D. [32 PVC TUBE).
Drain pump is included.
Max. lifting height is 850mm from the ceiling.
3. As for suspension bolt, please use M10 or W3/8.
(Procured at local site)
4. Electrical box may be removed for the service purpose.
Make sure to slack the electrical wire little bit for control/power wires connection.
5. The height of the indoor unit is able to be adjusted with the grille attached.
6. For the installation of the optional high efficiency filter or optional multi-functional casement.
1) Requires E or more space between transom and ceiling for the installation.
2) Add 135 mm to the dimensions marked on the figure.
3) The optional high efficiency filter must be used jointly with the optional multi-functional casement.
7. When installing the branch ducts, be sure to insulate adequately.
Otherwise condensation and dripping may occur.
(It becomes the cause of dew drops/Water dew.)
8. As for necessary installation/service space, please refer to the left figure.
Model
PLA-RP35/50BA
Floor
PLA-RP60BA
PLA-RP71BA
PLA-RP71BA2
1
Refrigerant pipe
···[6.35
Flared connection
···1/4 inch
Refrigerant pipe
[6.35 / [9.52
Flared connection
1/4 inch/ 3/8 inch
(compatible)
Refrigerant pipe
···[9.52
Flared connection
PLA-RP100,125,140BA
PLA-RP100,125,140BA2 ···3/8 inch
OCH412G
19
2
A
B
Refrigerant pipe
···[12.7
Flared connection
···1/2 inch
C
D
E
80
74
Refrigerant pipe
···[15.88
Flared connection
···5/8 inch
241
258
281
298
87
85
400
77
440
Max. 4.0m
Air intake hole
8
WIRING DIAGRAM
PLA-RP35/50/60/71/100/125/140BA.UK
PLA-RP35/50/60/71BA1.UK
PLA-RP35/50/60/71/100/125/140BA#2.UK
PLA-RP35/50/60/71BAR3.UK
[LEGEND]
SYMBOL
I.B
CN2L
CN32
CN41
CN51
FUSE
LED1
LED2
LED3
SW1
SW2
SWE
X1
DCL
DP
FS
NAME
INDOOR CONTROLLER BOARD
CONNECTOR (LOSSNAY)
CONNECTOR (REMOTE SWITCH)
CONNECTOR (HA TERMINAL-A)
CONNECTOR (CENTRALLY CONTROL)
FUSE (T6.3AL250V)
POWER SUPPLY (I.B)
POWER SUPPLY (R.B)
TRANSMISSION (INDOOR-OUTDOOR)
SWITCH (MODEL SELECTION) * See table 1
SWITCH (CAPACITY CODE) * See table 2
CONNECTOR (EMERGENCY OPERATION)
RELAY (DRAIN PUMP)
REACTOR
DRAIN PUMP
DRAIN FLOAT SWITCH
SYMBOL
MF
MV
TB2
TB4
7%7%
<Table 1> SW1 (MODEL SELECTION)
SW1
Manufacture/Service
NAME
FAN MOTOR
VANE MOTOR
TERMINAL BLOCK (Indoor unit Power (option))
TERMINAL BLOCK (INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK (REMOTE CONTROLLER
TRANSMISSION LINE)
ROOM TEMP. THERMISTOR
(0°CNȍ°CNȍ'(7(&7
PIPE TEMP. THERMISTOR/LIQUID
(0°CNȍ°CNȍ'(7(&7
COND. / EVA. TEMP. THERMISTOR
(0°CNȍ°CNȍ'(7(&7
TH1
TH2
TH5
OPTION PART
W.B
BZ
LED1
LED2
RU
SW1
SW2
1 2 3 4 5
ON
OFF
<Table 2> SW2 (CAPACITY CODE)
SW2
MODELS Manufacture/Service MODELS Manufacture/Service
PLA-RP35BA
PLA-RP50BA
PCB FOR WIRELESS REMOTE CONTROLLER
BUZZER
LED (OPERATION INDICATION : GREEN)
LED (PREPARATION FOR HEATING : ORANGE)
RECEIVING UNIT
EMERGENCY OPERATION (HEAT / DOWN)
EMERGENCY OPERATION (COOL / UP)
PLA-RP60BA
PLA-RP71BA
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
ON PLA-RP125BA
OFF
ON PLA-RP140BA
OFF
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
ON
OFF
ON
OFF
ON
OFF
ON
OFF
The black square ( ) indicates a switch position.
Refer to table 1 and 2
Please set the voltage using the
remote controller.
)RUWKHVHWWLQJPHWKRGSOHDVHUHIHUWR
the indoor unit Installation Manual.
ON PLA-RP100BA
OFF
DCL
TB5
2
1
TRANSMISSION
WIRES
DC12V
2 1
TB6
YLW
R.B
I.B
VANE CNV(WHT)
SW1
20 18 16 14 12 10 8 6 4 2
SW2
J41 J42
CN32
(WHT) 1
Pair No.
19 17 15 13 11 9 7 5 3 1
5
1
2 1
LED2
4
LED1
3
AUTO GRILLE
CN3G 1
(BLK)
WIRELESS
CN90
(WHT)
9
4
9
5
5
5
5
I-SEE
SENSOR
CN4Y
(WHT)
1
4
CNB
BZ
I-SEE
SENSOR
I-SEE
SENSOR MOTOR
CN6Y
(RED) 6
1
5
M
MV
M
MV
M
MV
M
SW1
LED2
MV
SW2
LED1
RU
GRILLE
W.B
1 2
5
FLOAT SW LIQUID/PIPE INTAKE
CN20
CN4F
CN44
(RED)
(WHT)
(WHT)
1
4 1
3
4
t°
t°
1 2
t°
TH2 TH5
TH1
7
FAN D.U.M
CNMF CNP
(WHT) (BLU)
4
1 3
X1
AUTO
GRILLE
POWER
CNAC
(WHT)
11
3
MS
3~
M
1~
MF
DP
YLW
ORN
TB4
YLW
S1
ORN
S2
S3
TO
OUTDOOR
UNIT
ORN
BRN
U.B
3
CN3G
1
5 3 1
*Be sure to turn off the source power and then
disconnect fan motor connector.
(Failure to do so will cause trouble in fan motor)
CN3A
AUTOMATIC FILTER ELEVATION PANEL
(OPTION PARTS)
Notes: 6 \PER,VXVHGLQZLULQJGLDJUDPDERYHDUH&RQQHFWRU
Terminal (block).
, QGRRUDQGRXWGRRUFRQQHFWLQJZLUHVDUHPDGHZLWKSR,DULWLHVPDNH
ZLULQJPDWFKLQJWHUPLQDOQXPEHUV666
3. Since the outdoor side electric wiring may change be sure to check
the outdoor unit electric wiring for servicing.
4. This diagram shows the wiring of indoor and outdoor connecting
ZLUHVVSHFLILFDWLRQRI9DGRSWLQJVXSHULPSRVHGV\VWHPRI
power and signal.
* 1: When work to Supply power separately to indoor and outdoor
XQLWVZDVDSSOLHGUHIHUWR)LJ
* )RUSRZHUVXSSO\V\VWHPRIWKLVXQLWUHIHUWRWKHFDXWLRQODEHO
located near this diagram.
OCH412G
RECTIFICATION
(BLU)
FS
I-SEE SENSOR
CORNER PANEL
(OPTION PARTS)
FUSE
DC325V
REMOCON
CN22
M
MT
1 3 5
OFF
CN105
1
(BLK)
(BLU)
SWE
ON
3
1
1
OUTDOOR
CN01
1 3
INDOOR/OUTDOOR
COMMUNICATION
CN3C
CN41(WHT)
CN2L
LED3
3
CN51(WHT)
*(Fig. 1)
CN01
I.B
(BLK)
YLW
5
ORN
3
1
CN3C
(BLU)
3
1
RED
BLU
GRN/YLW
YLW
ORN
ORN
BRN
TB2
L
N
TB4
S1
S2
S3
INDOOR/OUTDOOR
COMMUNICATION
20
POWER SUPPLY
~(1PHASE)
230V 50Hz
TO OUTDOOR UNIT
PLA-RP71BA2.UK
PLA-RP100BA2.UK
PLA-RP125BA2.UK
PLA-RP140BA2.UK
[LEGEND]
SYMBOL
I.B
CN2L
CN32
CN41
CN51
FUSE
LED1
LED2
LED3
SW1
SW2
SWE
X1
DCL
DP
FS
NAME
INDOOR CONTROLLER BOARD
CONNECTOR (LOSSNAY)
CONNECTOR (REMOTE SWITCH)
CONNECTOR (HA TERMINAL-A)
CONNECTOR (CENTRALLY CONTROL)
FUSE (T6.3AL250V)
POWER SUPPLY (I.B)
POWER SUPPLY (R.B)
TRANSMISSION (INDOOR-OUTDOOR)
SWITCH (MODEL SELECTION) wSee table 1
SWITCH (CAPACITY CODE) wSee table 2
CONNECTOR (EMERGENCY OPERATION)
RELAY (DRAIN PUMP)
REACTOR
DRAIN PUMP
DRAIN FLOAT SWITCH
SYMBOL
MF
MV
TB2
TB4
7%7%
<Table 1> SW1 (MODEL SELECTION)
SW1
MODELS
SETTING
PLA-RP71BA2
1 2 3 4 5
PLA-RP100BA2
ON
OFF
PLA-RP125BA2
NAME
FAN MOTOR
VANE MOTOR
TERMINAL BLOCK (Indoor unit Power (option))
TERMINAL BLOCK (INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK (REMOTE CONTROLLER
TRANSMISSION LINE)
ROOM TEMP. THERMISTOR
(0:NŸ:NŸ'(7(&7
PIPE TEMP. THERMISTOR/LIQUID
(0:NŸ:NŸ'(7(&7
COND. / EVA. TEMP. THERMISTOR
(0:NŸ:NŸ'(7(&7
TH1
TH2
TH5
OPTION PART
W.B
BZ
LED1
LED2
RU
SW1
SW2
1 2 3 4 5
PLA-RP140BA2
ON
OFF
<Table 2> SW2 (CAPACITY CODE)
SW2
MODELS
SETTING
1 2 3 4 5
PLA-RP71BA2
PCB FOR WIRELESS REMOTE CONTROLLER
BUZZER
LED (OPERATION INDICATION : GREEN)
LED (PREPARATION FOR HEATING : ORANGE)
RECEIVING UNIT
EMERGENCY OPERATION (HEAT / DOWN)
EMERGENCY OPERATION (COOL / UP)
1 2 3 4 5
PLA-RP100BA2
1 2 3 4 5
PLA-RP125BA2
1 2 3 4 5
PLA-RP140BA2
ON
OFF
ON
OFF
ON
OFF
ON
OFF
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5HIHUWRWDEOHVDQG
DCL
TB5
2
1
TRANSMISSION
WIRES
DC12V
2 1
TB6
YLW
R.B
I.B
VANE CNV(WHT)
SW1
20 18 16 14 12 10 8 6 4 2
SW2
J41 J42
CN32
(WHT) 1
CN51(WHT)
Pair No.
19 17 15 13 11 9 7 5 3 1
5
3
1
2 1
LED2
4
LED1
3
AUTO GRILLE
CN3G 1
(BLK)
WIRELESS
CN90
(WHT)
9
5
5
5
I-SEE
SENSOR MOTOR
CN6Y
(RED) 6
1
4
CNB
BZ
I-SEE
SENSOR
5
MV
M
MV
M
MV
M
SW1
LED2
MV
SW2
LED1
4 1
W.B
3
4
t°
U.B
3
CN3G
1
5 3 1
1 2
7
FAN
CNMF
(WHT)
4
YLW
ORN
X1
TO OUTDOOR
UNIT
ORN
BRN
1 D.U.M
CNP
1 3
TB4
YLW
S1
ORN
S2
S3
t°
t°
CN3A
TH2 TH5
TH1
MS
3~
M
1~
MF
DP
*%HVXUHWRWXUQRIIWKHVRXUFHSRZHU
DQGWKHQGLVFRQQHFWIDQPRWRUFRQQHFWRU
)DLOXUHWRGRVRZLOOFDXVHWURXEOHLQIDQPRWRU
AUTOMATIC FILTER ELEVATION PANEL
(OPTION PART)
Notes:
6\PER,VXVHGLQZLULQJGLDJUDPDERYHDUH
&RQQHFWRU7HUPLQDOEORFN
,QGRRUDQGRXWGRRUFRQQHFWLQJZLUHVKDYHSRODULWLHVPDNHVXUHWR
PDWFKWKHWHUPLQDOQXPEHUV666IRUFRUUHFWZLULQJV
6LQFHWKHRXWGRRUVLGHHOHFWULFZLULQJPD\FKDQJHEHVXUHWRFKHFN
WKHRXWGRRUXQLWHOHFWULFZLULQJIRUVHUYLFLQJ
7KLVGLDJUDPVKRZVWKHZLULQJRILQGRRUDQGRXWGRRUFRQQHFWLQJ
ZLUHVVSHFLILFDWLRQRI9DGRSWLQJVXSHULPSRVHGV\VWHPIRU
power and signal.
*1: ,ILQGRRUDQGRXWGRRUXQLWVKDYHVHSDUDWHSRZHUVXSSOLHVUHIHUWR)LJ
*)RUSRZHUVXSSO\V\VWHPRIWKLVXQLWUHIHUWRWKHFDXWLRQODEHO
located near this diagram.
Please set the voltage using the
remote controller.
)RUWKHVHWWLQJPHWKRGSOHDVHUHIHUWR
the indoor unit Installation Manual.
OCH412G
DC325V
RECTIFICATION
(BLU)
FS
I-SEE SENSOR
CORNER PANEL
(OPTION PART)
RU
GRILLE
1
FUSE
M
MT
M
3 1
1 3 5
(BLU)
9
5
I-SEE
SENSOR
CN4Y
1 (WHT) 4
1 2
REMOCON
CN22
SWE
ON
OFF
AUTO GRILLE
POWER FLOAT SW LIQUID/PIPE INTAKE
CNAC
CN20
CN4F
CN44
(WHT)
(RED)
(WHT)
(WHT)
3
1
1
(BLK)
(BLU)
CN41(WHT)
CN2L
LED3
OUTDOOR
CN01
1 3
INDOOR/OUTDOOR
COMMUNICATION
CN3C
21
*1(Fig. 1)
CN01
I.B
(BLK)
YLW
5
ORN
3
1
I.B
RED
BLU
GRN/YLW
YLW
ORN
ORN
BRN
TB2
L
N
POWER SUPPLY
~(1PHASE)
230V 50Hz
TB4
S1
S2
S3
INDOOR/OUTDOOR
COMMUNICATION
1 3
CN3C(BLU)
TO OUTDOOR UNIT
9
REFRIGERANT SYSTEM DIAGRAM
PLA-RP35/50/60/71/100/125/140BA.UK
PLA-RP35/50/60/71BA1.UK
PLA-RP35/50/60/71/100/125/140BA#2.UK
PLA-RP35/50/60/71BAR3.UK
PLA-RP71/100/125/140BA2.UK
Strainer (#50)
Heat exchanger
Refrigerant GAS pipe connection
(Flare)
Thermistor TH5
(Cond./ Eva.temperature)
Refrigerant flow in cooling
Refrigerant flow in heating
Refrigerant LIQUID pipe connection
(Flare)
Thermistor TH1
(Room temperature)
Thermistor TH2
Pipe temperature(Liquid)
Distributor
with strainer (#50)
OCH412G
Strainer (#50)
22
10
TROUBLESHOOTING
10-1. 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 trouble reoccurrence at field are summarized in the table below. Check the contents
below before investigating details.
Unit conditions at service
Error code
Actions to be taken for service (summary)
Displayed
Judge what is wrong and take a corrective action according
to “10-3. Self-diagnosis action table”.
The trouble is reoccurring.
Not displayed
Consider 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
trouble occurred, matters related to wiring and etc.
Reset error code logs and restart the unit after finishing
service.
There is no abnormality in electrical component,
controller board, remote controller and etc.
Logged
The trouble is not reoccurring.
Re-check the abnormal symptom.
Conduct trouble shooting and ascertain the cause of
the trouble according to “10-4. Troubleshooting of
problems.
Continue to operate unit for the time being if the cause
is not ascertained.
There is no abnormality concerning of parts such as
electrical component, controller board, remote controller
and etc.
Not logged
OCH412G
Conduct troubleshooting and ascertain the cause of the
trouble according to “10-4. Troubleshooting of problems.
23
10-2. 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.
<Malfunction-diagnosis method at maintenance service>
[Procedure]
Refrigerant
address
display
CHECK
CHECK
display
Temperature
button
TEMP
ON/OFF
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.)
ON/OFF
button
MODE
FAN
AUTO STOP
VANE
AUTO START
CHECK LOUVER
CHECK
button
min
TEST RUN
SET
h
HOUR
button
RESET
CLOCK
• The check mode is cancelled.
4. Point the remote controller at the
sensor on the indoor unit and
press the ON/OFF button.
OCH412G
24
‡ Refer to the following tables for details on the check codes.
[Output pattern A]
Beeper sounds
OPERATION
INDICATOR
lamp flash
pattern
Beep
Beep Beep Beep
Off
Beep
1st
2 nd
3 rd
nth
On
On
On
On
Beep Beep
1st
Off
On
2 nd · · · Repeated
On
0.5 sec. Approx. 2.5 sec. 0.5 sec. 0.5 sec.
Self-check Approx. 2.5 sec. 0.5 sec. 0.5 sec. 0.5 sec.
starts
(Start signal
Number of flashes/beeps in pattern indicates the check Number of flashes/beeps in pattern indicates
received)
code in the following table (i.e., n=5 for “P5”)
the check code in the following table
[Output pattern B]
Beeper sounds
OPERATION
INDICATOR
lamp flash
pattern
Beep
Beep Beep Beep
1st
Off
Self-check Approx. 2.5 sec.
starts
(Start signal
received)
On
Approx. 3 sec.
2nd
3 rd
On
On
On
0.5 sec. 0.5 sec. 0.5 sec.
Beep
Beep
nth
1st
On
Off
0.5 sec. Approx. 2.5 sec.
Number of flashes/beeps in pattern indicates the check
code in the following table (i.e., n=5 for “U2”)
On
Approx. 3 sec.
Beep
2 nd · · · Repeated
On
On
0.5 sec. 0.5 sec.
Number of flashes/beeps in pattern indicates
the check code in the following table
[Output pattern A] Errors detected by indoor unit
Wireless remote controller Wired remote controller
Beeper sounds/OPERATION
Symptom
Check code
INDICATOR lamp flashes
(Number of times)
1
P1
Intake sensor error
P2
Pipe (TH2) sensor error
2
P9
Pipe (TH5) sensor error
Indoor/outdoor unit communication error
3
E6,E7
4
P4
Drain sensor error/Float switch connector (CN4F) open
P5
Drain pump error
5
Forced compressor stop(due to water leakage abnormality)
PA
6
P6
Freezing/Overheating protection operation
7
EE
Communication error between indoor and outdoor units
8
P8
Pipe temperature error
9
E4, E5
Remote controller signal receiving error
–
–
10
–
–
11
12
Fb
Indoor unit control system error (memory error, etc.)
14
PL
Refrigerant circuit abnormal
Remote controller transmission error
E0, E3
–
–
E1, E2
Remote controller control board error
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Wireless remote controller Wired remote controller
Beeper sounds/OPERATION
Symptom
Check code
INDICATOR lamp flashes
(Number of times)
Indoor/outdoor unit communication error
1
E9
(Transmitting error) (Outdoor unit)
Compressor overcurrent interruption
2
UP
Open/short of outdoor unit thermistors
3
U3,U4
Compressor overcurrent interruption (When compressor locked)
4
UF
Abnormal high discharging temperature/49C operated/
5
U2
insufficient refrigerant
Abnormal high pressure (63H operated)/Overheating
U1,Ud
6
protection operation
Abnormal temperature of heat sink
U5
7
Outdoor unit fan protection stop
8
U8
9
Compressor overcurrent interruption/Abnormal of power module
U6
Abnormality of super heat due to low discharge temperature
10
U7
Abnormality such as overvoltage or voltage shortage and
11
U9,UH
abnormal synchronous signal to main circuit/Current sensor error
–
–
12
–
–
13
Others
Other errors (Refer to the technical manual for the outdoor unit.)
14
Notes:
1. If the beeper does not sound again after the initial 2 beeps to confirm the self-check start signal was received and
the OPERATION INDICATOR lamp does not come on, there are no error records.
2. If the beeper sounds 3 times continuously “beep, beep, beep (0.4 + 0.4 + 0.4 sec.)” after the initial 2 beeps to confirm
the self-check start signal was received, the specified refrigerant address is incorrect.
‡ On wireless remote controller
The continuous buzzer sounds from receiving section of indoor unit.
Blink of operation lamp
‡ On wired remote controller
OCH412G
25
Remarks
Remarks
For details, check
the LED display
of the outdoor
controller board.
As for outdoor
unit, refer to
outdoor unit's
service manual.
‡ If the unit cannot be operated properly after test run, refer to the following table to find the cause.
Symptom
Cause
LED 1, 2 (PCB in outdoor unit)
After LED 1, 2 are lighted, LED 2 is ‡For about 2 minutes following power-on,operation of the remote controller is not possible
turned off, then only LED 1 is
lighted. (Correct operation)
due to system start-up. (Correct operation)
‡Connector for the outdoor unit’s protection
Only LED 1 is lighted. ĺ
device is not connected.
PLEASE WAIT ĺ Error code
LED 1, 2 blink. ‡Reverse or open phase wiring for the outdoor
Subsequent to
unit’s power terminal block (L1, L2, L3)
about 2 minutes
after
power-on
Display messages do not
Only LED 1 is lighted. ĺ
‡Incorrect wiring between indoor and outdoor
appear even when operation
LED 1 blinks twice, units (incorrect polarity of S1, S2, S3)
switch is turned ON (operation
LED 2 blinks once. ‡Remote controller wire short
lamp does not light up).
Wired remote controller
For about 2
PLEASE WAIT
minutes after
power-on
On the wireless remote controller with condition above, following phenomena take place.
‡ No signals from the remote controller can be received.
‡ Operation lamp is blinking.
‡ The buzzer makes a short ping sound.
Note:
Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)
For description of each LED (LED1, 2, 3) provided on the indoor controller, refer to the following table.
LED1 (power for microprocessor)
LED2 (power for remote controller)
Indicates whether control power is supplied. Make sure that this LED is
always lit.
Indicates whether power is supplied to the remote controller.
This LED lights only in the case of the indoor unit which is connected to the
outdoor unit refrigerant addresses “0”.
LED3 (communication between indoor and
outdoor units)
Indicates state of communication between the indoor and outdoor units.
Make sure that this LED is always blinking.
OCH412G
26
Note: Refer to the manual of outdoor unit for the details of display
such as F, U, and other E.
10-3. SELF-DIAGNOSIS ACTION TABLE
Error Code
P1
Abnormal point and detection method
Room temperature thermistor (TH1)
1 The unit is in 3-minute resume
prevention mode if short/open of
thermistor is detected. Abnormal if the
unit does not reset normally after 3
minutes. (The unit returns to normal
operation, if it has been reset normally.)
2 Constantly detected during cooling,
drying, and heating operation.
Short: -90ºC or more
Open: -40ºC or less
Cause
1 Defective thermistor
Countermeasure
1 ~ 3 Check resistance value of thermistor.
characteristics
0ºC···15.0k
10ºC···· 9.6k
(CN20) on the indoor controller
20ºC···· 6.3k
board (Insert failure)
30ºC···· 4.3k
3 Breaking of wire or contact
40ºC···· 3.0k
failure of thermistor wiring
If you put force on (draw or bend) the lead wire
4 Defective indoor controller
while measuring resistance value of thermistor,
board
breaking of wire or contact failure can be
detected.
2 Check contact failure of connector (CN20)
on the indoor controller board. Refer to 10-7.
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.
2 Contact failure of connector
Turn the power off, and on again to operate
after check.
P2
Pipe temperature thermistor/Liquid
(TH2)
1 The unit is in 3-minute resume
prevention mode if short/open of
thermistor is detected. Abnormal if the
unit does not reset normally after 3
minutes. (The unit returns to normal
operation, if it has been reset normally.)
2 Constantly detected during cooling,
drying, and heating (except defrosting)
operation
Short: 90ºC or more
Open: -40ºC or less
1 Defective thermistor
2
3
4
5
characteristics
Contact failure of connector
(CN44) on the indoor controller
board (Insert failure)
Breaking of wire or contact
failure of thermistor wiring
Defective refrigerant circuit is
causing thermistor temperature
of 90ºC or more or -40ºC or
less.
Defective indoor controller
board
1 ~ 3 Check resistance value of thermistor.
For characteristics, refer to (P1) above.
2 Check contact failure of connector (CN44)
on the indoor controller board. Refer to 10-7.
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 extremely 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
extremely difference with actual pipe <liquid>
temperature, replace indoor controller board.
Turn the power off, and on again to operate
after check.
P4
P5
1 Contact failure of connector
Contact failure of drain float switch
(CN4F)
(Insert failure)
• Extract when the connector of drain float
switch is disconnected.
( 3 and 4 of connector CN4F is not short- 2 Defective indoor controller
circuited.)
board
• Constantly detected during operation
1 Check contact failure of float switch connector.
Drain over flow protection operation
1 Suspensive abnormality, if drain float
switch is detected to be underwater for
1 minute and 30 seconds continuously
with drain pump on.
Compressor and indoor fan will be
turned off.
2 Drain pump is abnormal if the condition
above is detected during suspensive
abnormality.
3 Constantly detected during drain pump
operation
1 Check if drain pump works.
2 Check drain function.
1 Malfunction of drain pump
2 Defective drain
Turn the power on again and check after
inserting connector again.
2 Operate with connector (CN4F) shortcircuited.
Replace indoor controller board if abnormality
reappears.
Clogged drain pump
Clogged drain pipe
3 Defective drain float switch
3 Remove drain float switch connector CN4F
Jamming of the drain float
and check if it is short (Switch On) with the
switch or malfunction of movmoving part of float switch UP, or OPEN with
ing parts causing the drain float
the moving part of float switch down.
switch to be detected under
Replace float switch if it is short with the
water (Switch On)
moving part of float switch down.
4 Defective indoor-controller
4 Replace indoor controller board if it is shortboard
circuited between 3 ~ 4 of the drain float
switch connector CN4F and abnormality
reappears.
It is not abnormal if there is no problem about
the above-mentioned
Turn the power off, and on again to operate
after check.
OCH412G
27
Error Code
Abnormal point and detection method
Freezing/overheating protection is
operating
1 Freezing protection (Cooling mode)
The unit is in 6-minute resume
prevention mode if pipe <liquid or
condenser/evaporator> temperature
stays under -15ºC for 3 minutes, 3
minutes after the compressor started.
Abnormal if it stays under -15ºC for 3
minutes again within 16 minutes after
6-minute resume prevention mode.
Countermeasure
Cause
(Cooling or drying mode)
(Cooling or drying mode)
1 Clogged filter (reduced airflow) 1 Check clogs of the filter.
2 Short cycle of air path
2 Remove blockage.
3 Low-load (low temperature)
operation out of the tolerance
range
4 Defective indoor fan motor
4 Refer to 10-6.
• Fan motor is defective.
• Indoor controller board is
defective.
5 Defective outdoor fan control
6 Overcharge of refrigerant
7 Defective refrigerant circuit
5 Check outdoor fan motor.
6 7 Check operating condition of refrigerant
circuit.
(clogs)
P6
P8
2 Overheating protection (Heating mode)
The units is in 6 minute resume
prevention mode if pipe <liquid or
condenser/evaporator> temperature
is detected as over 70ºC after the
compressor started. Abnormal if the
temperature of over 70ºC is detected
again within 30 minutes after 6 minute
resume prevention mode.
Pipe temperature
<Cooling mode>
Detected as abnormal when the pipe
temperature is not in the cooling range
3 minutes after compressor start and 6
minutes after the liquid or condenser/
evaporator pipe is out of cooling range.
Note 1) It takes at least 9 minutes to
detect.
Note 2) Abnormality P8 is not detected in
drying mode.
Cooling range: -3 °C (TH-TH1)
TH: Lower temperature between:
liquid pipe temperature (TH2) and
condenser/evaporator temperature
(TH5)
TH1: Intake temperature
<Heating mode>
When 10 seconds have passed after the
compressor starts operation and the hot
adjustment mode has finished, the unit is
detected as abnormal when condenser/
evaporator pipe temperature is not in
heating range within 20 minutes.
(Heating mode)
(Heating mode)
1 Clogged filter (reduced airflow)
1 Check clogs of the filter.
2 Short cycle of air path
2 Remove blockage.
3 Over-load (high temperature)
operation out of the tolerance
range
4 Defective indoor fan motor
4 Refer to 10-6.
• Fan motor is defective.
• Indoor controller board is
defective.
5 Defective outdoor fan control
5 Check outdoor fan motor.
6 Overcharge of refrigerant
6 ~ 8 Check operating condition of refrigerant
7 Defective refrigerant circuit
circuit.
(clogs)
8 Bypass circuit of outdoor unit is
defective.
1 Slight temperature difference
2
3
4
5
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
Converse connection of
extension pipe (on plural units
connection)
Converse wiring of indoor/
outdoor unit connecting wire
(on plural units connection)
Defective detection of indoor
room temperature and pipe
<condenser/evaporator>
temperature thermistor
Stop valve is not opened
completely.
Note 3) It takes at least 27 minutes to
detect abnormality.
Note 4) It excludes the period of defrosting.
(Detection restarts when defrosting
mode is over.)
Heating range: 3 °C (TH5-TH1)
OCH412G
28
1 ~ 4 Check 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)’.
)
2 3 Check converse connection of extension
pipe or converse wiring of indoor/outdoor
unit connecting wire.
Error Code
P9
Abnormal point and detection method
Countermeasure
Cause
Pipe temperature thermistor/
1 Defective thermistor
1~ Check resistance value of thermistor.
Condenser-Evaporator (TH5)
characteristics
The unit is in 3-minute resume protection
For characteristics, refer to (P1) above.
Contact failure of connector
Check contact failure of connector (CN44)
mode if short/open of thermistor is
(CN44) on the indoor controller
on the indoor controller board.
detected. Abnormal if the unit does not
board (Insert failure)
Refer to 10-7.
get back to normal within 3 minutes. (The
Breaking of wire or contact
Turn the power on and check restart after
unit returns to normal operation, if it has
failure of thermistor wiring
inserting connector again.
been reset normally.)
Temperature of thermistor is
Operate in test run mode and check pipe
90˚C or more or -40˚C or less
Constantly detected during cooling,
<condenser/evaporator> temperature with
drying, and heating operation (except
caused by defective refrigerant
outdoor controller circuit board. If pipe
defrosting)
circuit.
<condenser/evaporator> temperature is
Short: 90˚C or more
Defective indoor controller
extremely low (in cooling mode) or high (in
Open: -40˚C or less
board
heating mode), refrigerant circuit may have
defect.
Operate in test run mode and check pipe
<condenser/evaporator> temperature
with outdoor control circuit board. If there
is extreme 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).
(
E0
or
E4
E3
or
E5
)
Remote controller transmission
1 Contact failure at transmission 1 Check disconnection or looseness of indoor
unit or transmission wire of remote controller.
error(E0)/signal receiving error(E4)
wire of remote controller
Set one of the remote controllers “main” if
1 Abnormal if main or sub remote controller
All remote controllers are set
there is no problem with the action above.
cannot receive any transmission
as “sub” remote controller.
Check
wiring of remote controller.
normally from indoor unit of refrigerant
In this case, E0 is displayed
• Total wiring length: max. 500m
address “0” for 3 minutes.
on remote controller, and E4
(Do not use cable x 3 or more.)
(Error code: E0)
is displayed at LED (LED1,
• The number of connecting indoor units:
Abnormal if sub remote controller could
LED2) on the outdoor controller
max. 16 units
not receive any signal for 2 minutes.
circuit board.
• The number of connecting remote
(Error code: E0)
Miswiring of remote controller
controller: max. 2 units
Defective transmitting receiving
1 Abnormal if indoor controller board can
circuit of remote controller
When it is not the above-mentioned problem of
not receive any data normally from
Defective transmitting receiving 1~
remote controller board or from other
circuit of indoor controller board
Diagnose remote controllers.
indoor controller board for 3 minutes.
a) When “RC OK” is displayed,
of refrigerant addresses “0”.
Remote controllers have no problem.
(Error code: E4)
Noise has entered into the
Turn the power off, and on again to check.
Indoor controller board cannot receive
transmission wire of remote
If abnormality generates again, replace
any signal from remote controller for 2
controller.
indoor controller board.
minutes. (Error code: E4)
b) When “RC NG” is displayed,
Replace remote controller.
c) When “RC E3” or “ERC 00-66” is displayed,
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.
Remote controller transmission
error(E3)/signal receiving error(E5)
1 2 remote controllers are set as 1 Set a remote controller to main, and the
1 Abnormal if remote controller could not
“main.”
other to sub.
find blank of transmission path for 6
(In case of 2 remote controllers)
seconds and could not transmit.
Remote controller is connected
(Error code: E3)
with 2 indoor units or more.
Remote controller is connected with only one
Remote controller receives transmitted
Repetition of refrigerant
indoor unit.
data at the same time and compares the
address
The address changes to a separate setting.
received and transmitted data. Abnormal
Defective transmitting receiving
if these data are judged to be different
circuit of remote controller
~ Diagnose remote controller.
30 continuous times. (Error code: E3)
Defective transmitting receiving
a) When “RC OK” is displayed, remote
controllers have no problem.
circuit of indoor controller board
1 Abnormal if indoor controller board could
Turn the power off, and on again to check.
not find blank of transmission path.
Noise has entered into
When becoming abnormal again, replace
(Error code: E5)
transmission wire of remote
indoor controller board.
Indoor controller board receives
controller.
b) When “RC NG” is displayed, replace
transmitted data at the same time and
remote controller.
compares the received and transmitted
c) When “RC E3” or “ERC 00-66” is
data. Abnormal if these data are judged
displayed, noise may be causing
to be different 30 continuous times. (Error
abnormality.
code: E5)
OCH412G
29
Error Code
E6
E7
Fb
E1
or
E2
PA
Abnormal point and detection method
Countermeasure
Cause
Indoor/outdoor unit communication
1 Contact failure, short circuit or, * Check LED display on the outdoor control
error (Signal receiving error)
circuit board. (Connect A-control service
miswiring (converse wiring) of
1 Abnormal if indoor controller board
tool, PAC-SK52ST.)
indoor/outdoor unit connecting
cannot receive any signal normally for 6
Refer to outdoor unit service manual.
wire
minutes after turning the power on.
Defective transmitting receiving 1 Check disconnection or looseness of indoor/
Abnormal if indoor controller board
outdoor unit connecting wire of indoor unit or
circuit of indoor controller board
cannot receive any signal normally for 3
outdoor unit.
Defective transmitting receiving
minutes.
Check all the units in case of twin triple
circuit of indoor controller board
Consider the unit abnormal under the
following condition: When 2 or more
indoor unit system.
Noise has entered into indoor/
indoor units are connected to an outdoor
~ Turn the power off, and on again to
outdoor unit connecting wire.
unit, indoor controller board cannot
check. If abnormality generates again,
receive a signal for 3 minutes from
replace indoor controller board or outdoor
outdoor controller circuit board, a signal
controller circuit board.
which allows outdoor controller circuit
* Other indoor controller board may have defect
board to transmit signals.
in case of twin triple indoor unit system.
Indoor/outdoor unit communication
1 Defective transmitting receiving 1~ Turn the power off, and on again to
error (Transmitting error)
circuit of indoor controller board
check. If abnormality generates again,
Abnormal if “1” receiving is detected 30
replace indoor controller board.
Noise has entered into power
times continuously though indoor controller
supply.
board has transmitted “0”.
Noise has entered into outdoor
control wire.
Indoor controller board
Abnormal if data cannot be read normally
from the nonvolatile memory of the indoor
controller board.
1 Defective indoor controller
board
Remote controller control board
1 Defective remote controller
1 Abnormal if data cannot be read normally from the nonvolatile memory of the
remote controller control board.
(Error code: E1)
1 Replace indoor controller board.
1 Replace remote controller.
Abnormal if the clock function of remote
controller cannot be operated normally.
(Error code: E2)
Forced compressor stop
1 Drain pump trouble
(due to water leakage abnormality)
1 The unit has a water leakage abnormality
Drain defective
when the following conditions, a) and b),
· Drain pump clogging
are satisfied while the above-mentioned
· Drain pipe clogging
detection is performed.
a) The intake temperature subtracted
Open circuit of float switch
with liquid pipe temperature detects
to be less than -10˚C for a total of
Contact failure of float switch
30 minutes. (When the drain sensor
connector
is detected to be NOT soaked in the
water, the detection record of a) and b)
Dew condensation on float
will be cleared.)
switch
b) Drain float switch detects to be in the
· Drain water descends along
water for more than 15 minutes.
lead wire.
*Once the water leakage abnormality is
· Drain water waving due to
detected, abnormality state will not be
filter clogging.
released until the main power is reset.
Extension piping connection
difference at twin, triple,
quadruple system.
OCH412G
1 Check the drain pump.
Check whether water can be drained.
Check the resistance of the float switch.
Check the connector contact failure.
Check the float switch lead wire mounted.
Check the filter clogging.
Check the piping connection.
Miswiring of indoor/ outdoor
connecting at twin, triple,
quadruple system.
Check the indoor/outdoor connecting wires.
Room temperature thermistor/
liquid pipe temperature
thermistor detection is
defective.
Check the room temperature display of
remote controller.
Check the indoor liquid pipe temperature
display of outdoor controller board.
30
Error Code
PL
Abnormal point and detection method
Abnormal refrigerant circuit
During Cooling, Dry, or Auto Cooling
operation, when the following are
regarded as failures when detected for
one second.
a)The compressor continues to run for 30
or more seconds.
b)The liquid pipe temperature or the
condense/evaporator temperature is
75°C or more.
*These detected errors will not be
cancelled until the power source is
reset.
OCH412G
Cause
Countermeasure
Abnormal operation of 4-way
valve
Disconnection of or leakage in
refrigerant pipes
Air into refrigerant piping
Abnormal operation (no rotation)
of indoor fan
· Defective fan motor.
· Defective indoor control board.
When this error occurs, be sure to replace
the 4-way valve.
Check refrigerant pipes for disconnection or
leakage.
After the recovery of refrigerant, vacuum dry
the whole refrigerant circuit.
Refer to section 10-6-2.
Check refrigerant circuit for operation.
* Purge air in refrigerant circuit to avoid
entry of moisture or air into refrigerant
circuit which could cause abnormal high
pressure, or replace refrigerant.
Defective refrigerant circuit
(clogging)
31
10-4. TROUBLESHOOTING OF PROBLEMS
Note: Refer to the manual of outdoor unit for the detail of remote
controller.
Phenomena
(1)LED2 on indoor controller board
is off.
Cause
• When LED1 on indoor controller board is also off.
1 Power supply of rated voltage is not supplied to out
door unit.
Defective outdoor controller circuit board
Power supply of 220~240V is not supplied to indoor
unit.
Defective indoor controller board
(For the separate indoor/outdoor unit power supply system)
1 Power supply of 220~240V AC is not supplied to
indoor unit.
The connectors of the optional replacement kit are
not used.
Defective indoor controller board
Countermeasure
1 Check the voltage of outdoor power
supply terminal block (L, N) or (L3, 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
(below).
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.
—check the wiring connection.
• When AC 220~240V is detected, check
(below).
Check the voltage between indoor
terminal block S1 and S2.
• When AC 220~240V is not detected,
check indoor/outdoor unit connecting
wire for miswiring.
• When AC 220~240V is detected, check
(below).
Check the fuse on indoor controller
board.
Check the wiring connection.
If no problem are found, indoor controller
board is defective.
1 Check the voltage of indoor power supply
terminal block (L,N).
• When AC220~240V is not detected,
check the power supply wiring.
• When AC220~240V is detected, check
(below).
Check that there is no problem in the
method of connecting the connectors.
• When there are problems in the method
of connecting the connectors, connect
the connector correctly referring to
installation manual of an optional kit.
• When there is no problem in the method
of connecting the connectors, check
(below).
Check the fuse on indoor controller
board.
Check the wiring connection.
If no problem are found, indoor controller
board is defective.
• When LED1 on indoor controller board is lit.
1 Check again the setting of refrigerant
1 Mis-setting of refrigerant address for outdoor unit
address for outdoor unit.
(There is no unit corresponding to refrigerant address
Set the refrigerant address to “0”. (For
“0”.)
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.
OCH412G
32
Note: Refer to the manual of outdoor unit for the detail of remote
controller.
Phenomena
(2) LED2 on indoor controller board
is blinking.
Cause
Countermeasure
• When LED1 on indoor controller board is also blinking. Check indoor/outdoor unit connecting wire
Connection failure of indoor/outdoor unit connecting for connection failure.
wire
• When LED1 is lit.
1 Check the connection of remote controller
wires in case of twin triple indoor unit
1 Miswiring of remote controller wires
Under twin triple indoor unit system, 2 or more indoor
system. When 2 or more indoor units are
units are wired together.
wired in one refrigerant system, connect
remote controller wires to one of those
units.
Refrigerant address for outdoor unit is wrong or not
Check the setting of refrigerant address
set.
in the case of grouping control system.
Under grouping control system, there are some units
If there are some units whose refrigerant
whose refrigerant address is 0.
addresses are 0 in one group, set one of
the units to 0 using SW1 (3-6) on outdoor
controller circuit board.
Short-cut of remote controller wires
Remove remote controller wires and
check LED2 on indoor controller board.
Defective remote controller
• When LED2 is blinking, check the shortcut 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.
(3) Upward/downward vane
performance failure
1 The vane is not downward during defrosting and heat 1 Normal operation (The vane is set to
preparation and when the thermostat is OFF in HEAT
horizontal regardless of remote control.)
mode. (Working of COOL protection function)
Vane motor does not rotate.
Check
(left).
• Defective vane motor
• Check the vane motor. (Refer to “How
• Breaking of wire or connection failure of connector
to check the parts”.)
• Check for breaking of wire or
connection failure of connector.
Upward/downward vane does not work.
Normal operation (Each connector on
• The vane is set to fixed position.
vane motor side is disconnected or
setting the fixed vanes by wired remote
controller.)
(4) Receiver for wireless remote
controller
1 Weak batteries of wireless remote controller.
OCH412G
1 Replace batteries of wireless remote controller.
Contact failure of connector (CNB) on wireless
~
remote controller board
Check contact failure of each connector.
(Insert failure)
If no problems are found of connector,
replace indoor controller board.
Contact failure of connector (CN90) on indoor conWhen the same trouble occurs even
troller board (Insert failure)
if indoor controller board is replaced,
Contact failure of connector between wireless remote
controller board and indoor controller board
replace wireless remote controller board.
33
10-5. EMERGENCY OPERATION
10-5-1. When wireless remote controller fails or its battery is exhausted
When the remote controller cannot be used
When the batteries of the remote controller run out or the remote controller malfunctions, the emergency operation can be done using the emergency buttons on the grille.
DEFROST/STAND BY lamp
Operation lamp
Emergency operation switch (heating)
Emergency operation switch (cooling)
Receiver
Starting operation
for more than 2
• To operate the cooling mode, press the
button
seconds.
for more than 2
• To operate the heating mode, press the
button
seconds.
* Lighting of the Operation lamp means the start of operation.
Details of EMERGENCY MODE are as shown below.
Operation mode
Set temperature
Fan speed
Air flow direction
Stopping operation
• To stop operation, press the
COOL
24°C
High
Horizontal
button
HEAT
24°C
High
Downward 5
or the
button
.
10-5-2. When wired remote controller or indoor unit microprocessor fails
1. When the wired remote control or the indoor unit microprocessor has failed, but all other components work properly,
if you set the switch (SWE) on the indoor controller board ON, the indoor unit will begin Emergency Operation.
When Emergency Operation is activated, the indoor unit operates as follows:
(1) Indoor fan is running at high speed. (2) Drain pump is working.
* Note on the wireless remote control
When the remote control does not function, it is possible to activate.
Emergency Operation by using the indoor unit Emergency operation switch (SW1, SW2 of the wireless signal
receiver board).
However, if the indoor unit microcomputer has failed, it is nesessary to proceed with points 2 and 3 below as in the
case of the wired remote control.
2. When you activate Emergency operation of the cooling or heating, you have to set the switch (SWE) on the indoor
controller board and activate Emergency operation of the outdoor unit.
For details on how to activate Emergency operation of the outdoor unit, refer to the outdoor unit wiring diagram.
Note: Emergency operation will not work unless outdoor unit is PU series.
3. Before you activate Emergency operation, check the following points:
(1) Emergency operation cannot be activated when:
• the outdoor unit malfunctions. • the indoor fan malfunctions.
• when the malfunction of drain pump is detected during self-diagnosing.
(2) Emergency operation becomes continuous only by switching the power source on/off.
ON/OFF on the remote control or temperature control etc. does not function.
(3) Avoid operating for a long time when the outdoor unit begins defrosting
while Emergency operation of the heating is activated, because it will start to blow cold air.
(4) Emergency cooling should be limited to 10 hours maximum (The indoor unit heat exchanger may freeze).
(5) After Emergency operation has been deactivated, set the switches etc. to their original positions.
(6) Movement of the vanes does not work in Emergency operation, therefore you have to slowly set them manually to
the appropriate position.
OCH412G
34
10-6. HOW TO CHECK THE PARTS
PLA-RP35/50/60/71/100/125/140BA.UK
PLA-RP35/50/60/71BA1.UK
PLA-RP35/50/60/71/100/125/140BA#2.UK
PLA-RP35/50/60/71BAR3.UK
PLA-RP71/100/125/140BA2.UK
Parts name
Room temperature
thermistor
(TH1)
Pipe temperature
thermistor/liquid(TH2)
Condenser/Evaporator
temperature thermistor
(TH5)
Vane motor (MV)
Check points
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature of 10 - 30)
Normal
Abnormal
4.3k~9.6k
Open or short
(Refer to the thermistor.)
Measure the resistance between the terminals with a tester.
(At the ambient temperature of 20 - 30)
White
Connector
MV
Orange
Red
Yellow
Blue
Red - Yellow
(-, -, -, -)
Red - Blue
(-
, -, -, -)
Red - Orange (-, -, -, -)
Red - White
Drain pump (DP)
YLW
YLW
Abnormal
300
Open or short
(-, -, -
, -)
Measure the resistance between the terminals with a tester.
(Winding temperature 20)
1
Normal
Abnormal
3
290 Open or short
Drain float switch (FS)
Normal
Measure the resistance between the terminals with a tester.
Moving part
State of moving part
Normal
Abnormal
2
UP
Short
Other than short
3
DOWN
Open
Other than open
1
Switch
Magnet
4
Moving
Part
i-see sensor
(Option)
Turn on the indoor unit with the black plastic tape on the outside of i-see sensor controller board.
With electricity being turned on, measure the power voltage between connectors with tester.
i-see sensor rotates and pull out the connector of motor for i-see sensor.
Do not disassemble corner panel
with i-see sensor.
Black plastic tape
4 3 2 1
i-see sensor (At the ambient temperature of 10 - 40)
i-see sensor connector
4 3 2 1
Blue Black Pink Brown
(–)—(+)
Normal
DC 1.857V ~ 3.132V
Abnormal
Other than the normal
(+)—(–)
DC 0.939V ~ 1.506V
Other than the normal
NOTE : Be careful not to discharge static electricity into electronics.
Vane motor for
i-see sensor (Option)
Measure the resistance between the terminals with a tester.
(At the ambient temperature of 20 - 30)
Connector
White
MV
Red - Blue
Orange
Red - Orange
Red
Blue
Yellow
OCH412G
Normal
Abnormal
250 Open or short
Red - Yellow
Red - White
35
10-6-1. Thermistor
< Thermistor for lower temperature >
<Thermistor Characteristic graph>
Room temperature thermistor (TH1)
Pipe temperature thermistor/liquid (TH2)
Condenser/evaporator temperature
thermistor (TH5)
Thermistor R0=15kΩ ± 3%
Fixed number of B=3480 ± 2%
Rt=15exp { 3480(
0˚C
10˚C
20˚C
25˚C
30˚C
40˚C
1
273+t
40
Resistance (k)
Thermistor for
lower temperature
50
1 )}
273
15kΩ
9.6kΩ
6.3kΩ
5.4kΩ
4.3kΩ
3.0kΩ
30
20
10
0
-20 -10 0 10 20 30 40 50
Temperature ()
10-6-2. DC Fan motor (FAN MOTOR/INDOOR CONTROLLER BOARD)
Check method of DC fan motor (fan motor / indoor controller circuit board)
Notes
· High voltage is applied to the connector (CNMF) for the fan motor. Pay attention to the service.
· Do not pull out the connector (CNMF) for the motor with the power supply on.
(It causes trouble of the indoor controller circuit board and fan motor.)
Self check
Symptom : The indoor fan cannot turn around.
Indoor controller board fuse check
Is the fuse normal?
Is the resistance
between the terminals of
drain pump normal?
No
Yes
Replace the fan motor.
Replace the indoor controller board.
No
Wiring contact check
Contact of fan motor connector (CNMF)
Is there contact failure?
Yes
Replace the drain pump.
Yes
Wiring recovery
No
Power supply check (Remove the connector (CNMF))
Measure the voltage in the indoor controller circuit board.
TEST POINT : VDC (between 1 (+) and 4 (-) of the fan connector): VDC DC 310~340 V
TEST POINT : VCC (between 5 (+) and 4 (-) of the fan connector): VCC DC 15 V
Is the voltage normal?
Yes
Replace the fan motor.
OK
No
Check the operation of fan.
Replace indoor
controller board
NG
Replace indoor controller board.
OK
Check the operation
END
NG
Replace the fan motor.
OCH412G
36
END
10-7. TEST POINT DIAGRAM
Indoor controller board
PLA-RP35/50/60/71/100/125/140BA.UK
PLA-RP35/50/60/71BA1.UK
PLA-RP30/50/60/71/100/125/140BA#2.UK
PLA-RP35/50/60/71BAR3.UK
PLA-RP71/100/125/140BA2.UK
LED3
Transmission (Indoor/outdoor)
CN3G
Connect to the auto grille
controller board (CN3G)
13V pulse output
CN90
Connect to the wireless
remote controller board
(CNB)
CNV
Vane motor output (MV)
12V pulse output
CN2L
Connector (LOSSNAY)
SW1
Model selection
CN4Y
i-see sensor
SW2
Capacity setting
CN6Y
i-see sensor motor output
12V DC pulse output
Jumper wire J41,J42
Pair No. setting for wireless
remote controller
CN105
CN51
LED2
Power supply (R.B)
Centrally control
1-2: Control signal
13VDC pulse input (1: +)
- : Operation indicator
13VDC ( : +)
- : Malfunction indicator
13VDC ( : +)
CN4F
Drain float switch (FS)
CN44
Pipe temperature
thermistor
1- : Liquid (TH2)
- : Condenser/Evaporator(TH5)
CN41
Connector
(HA terminal-A)
SWE
Emergency operation
CN20
Room temperature
thermistor (TH1)
CN32
Connector
(Remote switch)
LED1
Power supply (I.B)
CN3C
Transmission
(Indoor/outdoor)
(0~24V DC)
CN22
Connect to the terminal
block (TB5)
(Remote controller connecting wire)
(10.4~14.6V DC)
CNMF
Fan motor
1-4: DC 310~340V
- : DC15V
VCC : Voltage between pins of
C955 15VDC
(Same as (+)- (-) of CNMF)
CNP
Drain pump output (DP)
(220-240V AC)
CN01
Connect to the Terminal Block (TB4)
(Indoor/outdoor connecting line)
Between and
220-240V AC
CNAC
Connect to the auto grille
controller board (CN3A)
(220-240V AC)
OCH412G
FUSE 6.3A/250V
37
10-8. FUNCTIONS OF DIP SWITCH AND JUMPER WIRE
Each function is controlled by the dip switch and the jumper wire on control P.C. board.
The black square (ŶLQGLFDWHVDVZLWFKSRVLWLRQ
Jumper wire ( : Short
: Open)
Jumper wire
Functions
Setting by the dip switch and jumper wire
MODEL
SETTING
1 2 3 4 5
ON
OFF
PLA-RP·BA
SW1
Model
settings
PLA-RP71BA2
PLA-RP100BA2
PLA-RP125BA2
1 2 3 4 5
1 2 3 4 5
PLA-RP140BA2
MODEL
PLA-RP35BA
SW2
Capacity
settings
PLA-RP50BA
PLA-RP60BA
PLA-RP71BA
PLA-RP71BA2
J41
J42
Pair number
setting with
wireless
remote
controller
JP1
Unit type
setting
JP3
Indoor
controller
board type
setting
OCH412G
Remarks
SETTING
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
ON
OFF
ON
OFF
MODEL
PLA-RP100BA
ON
OFF PLA-RP100BA2
SETTING
1 2 3 4 5
PLA-RP125BA
1 2 3 4 5
PLA-RP140BA
1 2 3 4 5
ON
OFF PLA-RP125BA2
ON
OFF PLA-RP140BA2
ON
OFF
ON
OFF
ON
OFF
<Initial setting>
Wireless remote controller: 0
Control PCB: (for both J41 and J42)
4 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 wire is disconnected.)
Wireless remote Control PCB setting
controller setting
J41
J42
0
1
2
3~9
Model
Without TH5
With TH5
ON
OFF
JP1
Indoor controller board type
For product
Service parts
There is no jumper (JP1) because these models
have the cond./eva. temperature thermistor (TH5).
JP3
38
11
SPECIAL FUNCTION
11-1. HOW TO PERFORM THE UP/DOWN OPERATION OF THE AIR INTAKE GRILLE
11-1-1. Setting up the lowering distance of air intake grille
You can set up 8 different stages of lowering distance for
the air intake grille according to the set up location if desired.
Unit
Decorative
panel
* As a factory default, the decorative panel will automatically
stop at 1.6 m from the ceiling surface. The distance is a
rough indication, check by actually lowering it.
1) Take the cover off the electric box of the decorative panel. (2 screws)
2) Set up the dip switches of SW22 or SW2 on the control board of the
decorative panel as followed.
Cover for
Electric Box of
the decorative
panel
Control board of
the decorative
panel
SW 22 or SW2
Screws
Dip SW 22
Dip SW 2
The black square (■) indicates a switch position.
Lowering distance
SW22
(Rough indication
of the ceiling height) (Lowering distance)
The black square (■) indicates a switch position.
Lowering distance
SW22
(Rough indication
of the ceiling height) (Lowering distance)
Lowering distance
SW2
(Rough indication
of the ceiling height) (Lowering distance)
Lowering distance
SW2
(Rough indication
of the ceiling height) (Lowering distance)
Initial setting
Initial setting
1.2m
(~ 2.4m)
1.6m
(2.4m ~ 2.8m)
1.2m
(~ 2.4m)
1.6m
(2.4m ~ 2.8m)
2.0m
(2.8m ~ 3.2m)
2.4m
(3.2m ~ 3.6m)
2.0m
(2.8m ~ 3.2m)
2.4m
(3.2m ~ 3.6m)
2.8m
(3.6m ~ 4.0m)
3.2m
(4.0m ~ 4.4m)
2.8m
(3.6m ~ 4.0m)
3.2m
(4.0m ~ 4.4m)
3.6m
(4.4m ~ 4.8m)
4.0m
(4.8m ~ 5.2m)
3.6m
(4.4m ~ 4.8m)
4.0m
(4.8m ~ 5.2m)
* Airflow outreach distance is different depending on indoor units and
* Airflow outreach distance is different depending on indoor units and
air volume (ceiling height), so airflow may not reach the indicated
ceiling height as shown in the above table.
air volume (ceiling height), so airflow may not reach the indicated
ceiling height as shown in the above table.
3) Put the cover back on the electric box of the decorarive panel.
11-1-2. How to perform the up/down operation using wireless remote controller
Ensure that the air-conditioner is not running.
1) Ensure that the air-conditioner is not running.
Warning:
• Otherwise, it may cause an injury or a failure.
2) Press the "Down" button to lower the air intake grille.
* By default, the air intake grille will automatically stop at a lowering distance of 1.6 m from the ceiling level.
The distance can be changed to 1.2 m, 2.0 m, 2.4 m, 2.8 m, 3.2 m, 3.6 m and 4.0 m. These should be used
only as a guide. You should lower the air intake grille yourself to check the exact distance.
* When you want to stop the air intake grille while it is lowering, press the "Stop" or "Up" button on the remote
controller to stop at that position.
3) Remove the filter or air intake grille and clean them.
4) Attach the filter and air intake grille.
5) Press the "Up" button on the remote controller to put the air intake grille in place.
* If the air intake grille is not placed in the correct position at a time, the operation is automatically retried.
* When you want to stop the air intake grille while it is rising, press the "Stop" or "Down" button on the remote controller
to stop at that position.
OCH412G
39
Wireless remote
controller for
Automatic Filter
Elevation Panel
11-1-3. How to perform the up/down operation using wired remote controller (PAR-30MAA / PAR-31MAA)
1 Select "Maintenance" from the Main menu, and press the
button.
Select "Auto descending panel" with the F1 or F2 button, and press the
button.
Maintenance menu
Auto descending panel
Manual vane angle
Main menu:
Cursor
* When using the auto descending panel, always set the "Address" and "Unit
No." with "Service" – "Function setting".
F1
Move the cursor to "Ref. address", "Unit No." or "Operation" with the F1
button to select.
Select the refrigerant address and the unit number for the units to whose falls
panel, with the F2 or F3 button, and press the
button.
• Ref. address: Refrigerant address
• Unit No.: 1, 2, 3, 4, All
• Operation: Down / Up
F2
F3
F4
Auto descending panel
Ref. address
Unit No.
All
Operation
Down / Up
Keep clear, panel descending.
Press Check for Unit No.
Input display:
Cur.
Address
Check
F1
F2
F3
F4
Press the F4 button to confirm the unit.
<Confirmation of target unit>
If the unit being set is unknown, make the setting and then press the F4 button to confirm.
The air conditioner which is blowing downward is the target air conditioner.
Navigating through the screens
• To go back to the Main menu ..................
button
• To return to the previous screen ...............
button
OCH412G
Auto descending panel
Ref. address
Unit No.
All
Operation
Down / Up
Panel will stop in 30 sec.
Keep clear, panel descending.
Cur.
Address
Check
F1
40
F2
F3
F4
11-1-4. How to perform the up/down operation using wired remote controller (PAR-21MAA)
■General Operation
* Raise or lower all the air intake grilles managed by the remote controller at the same time.
Install the remote controller in a place where you can observe all the air-conditioners. Otherwise, the lowering grille may make
contact with something and cause damage to it.
1) Ensure that the air-conditioner is not running.
* The up/down operation mode is only available when the
airconditioner is "OFF".
Warning:
Ensure that the air-conditioner is not running.
• Otherwise, it may cause an injury or a failure.
2) Press both the "FILTER" and "Ventilation" buttons simultaneously for 2 seconds or more to enter the up/down
operation mode.
"Up/down operation
mode" display
3) Press the TEMP. ( ) button. After a while, the air intake grille will begin lowering.
"Stand by for lowering"
display
Alternately
[ Note: ]
• You cannot stop the operation while the air intake grille is lowering.
* If you press the ( ) button while the air intake grille is moving down, the air intake grille
may stop lowering, but it will not stop immediately.
• By default, the air intake grille will automatically stop at the lowering distance of 1.6 m
from the ceiling level.
* The distance can be changed to 1.2 m, 2.0 m, 2.4 m, 2.8 m, 3.2 m, 3.6 m, and 4.0 m.
These should be used only as a guide. You should lower the air intake grille yourself to check
the exact distance.
"Lowering" display
(blinking)
"Stopped" display
(when finished lowering)
4) Remove the filter and/or air intake grille to clean them.
5) Press the TEMP. ( ) button. After a while, the air intake grille will begin to rise and then be put back into place.
"Stand by for raising" display
Alternately
[ Note: ]
"Raising" display (blinking)
• You cannot stop the operation while the air intake grille is rising.
* If you press the ( ) button while the intake grille is moving up, the air
intake grille may stop rising, but it will not stop immediately.
"Stopped" display (when the air intake
grille has been put back into place)
6) Exit the up/down mode either by pressing the "ON/OFF" button or by pressing both the "FILTER" and "Ventilation"
buttons simultaneously for 2 seconds or more.
* After exiting the up/down mode, wait for
about 30 seconds to perform the next
Operation status
operation. The remote controller will not
display
accept any operation for that period.
Button to exit the up/down
operation mode
Down/Up
buttons
TEMP.
MENU
BACK
PAR-21MAA
OCH412G
41
MONITOR/SET
ON/OFF
ON/OFF
FILTER
DAY
CLOCK
CHECK TEST
OPERATION
CLEAR
Buttons to enter the up/down
operation mode (Press them
simultaneously for 2 seconds.)
■ Up/down operation with the individual specified air-conditioner (when used in combination with Mr. SLIM model)
* Raise or lower the air intake grille of the specific air-conditioner that you select from all that are managed by that remote controller.
1) Ensure that the air-conditioner is not running.
Ensure that the air-conditioner is not running.
Warning:
* The up/down operation mode is only available when the
• Otherwise, it may cause an injury or a failure.
air-conditioner is "OFF".
2) Press both the "FILTER" and "Ventilation" buttons simultaneously for 2 seconds or more to enter the up/down
operation mode.
Up/down operation mode
3) Press the "Ventilation" button. After a while, it will switch to the "individually-specified up/down operation
mode".
Up/down operation mode
Individually-specified up/down operation mode
Refrigerant address No.
Unit No.
If the number of the target airconditioner is unknown, go to 4).
In the upper right figure, the air-conditioner
for which the refrigerant address is "00"
and the unit No. is "1" is currently
selected.
If the number of the target airconditioner is known, go to 5).
4) If you press the "FILTER" button when the "Unit No." or "Refrigerant address No." is blinking,
the up/down airflow direction of the displayed air-conditioner will be switched downward after a while;
and the airflow direction of the other vents will all be blocked.
■ In Step 5) described below, identify the target
[Remarks:]
■ If "Err" is displayed when you press the "FILTER" button to check the target
air-conditioner by changing the "Unit No." and
air-conditioner, the air-conditioner with that "Unit No." or "Refrigerant
"Refrigerant address No." and by pressing the "FILTER"
address" may not exist. Check and set that air-conditioner again.
button to check the up/down airflow direction.
5) Select the "Unit No." and "Refrigerant address No.".
■ "Unit No." and "Refrigerant address No." can be changed by using the "TEMP." buttons ( ) ( ) when the panel
displays (a) or (b).
■ Every time you press the "Mode selection" button, the target of operation will change as illustrated below.
(a) "Unit No." selection
display
(c) "Standby for up/down operation" display
[Remarks:]
■ Each pressing action changes the unit No. from "1 - 4" to "0".
(Unit No. "0" means that all of 1 - 4 are targeted.)
■ Each press changes the "Refrigerant address" from "0 to 15".
(b) "Refrigerant address No." selection display
6) Continue to press the "Mode selection" button until "Waiting for up/down operation" is displayed.
"Waiting for up/down operation" display
The following steps are the same as steps 3) - 6) described in the "General Operation" section. Refer to that
section.
Operation status display
Down/Up buttons (for selecting
unit No. and refrigerant
address)
Button to exit the up/down
operation mode
TEMP.
MENU
Mode selection
BACK
PAR-21MAA
OCH412G
MONITOR/SET
ON/OFF
ON/OFF
FILTER
DAY
CLOCK
CHECK TEST
OPERATION
CLEAR
42
Buttons to enter the up/down
operation mode (Hold them
down simultaneously for 2
seconds.)
11-2. OPERATION (AUTO DESCENDING PANEL: PLP-6BAJ)
(1) Normal operation
UP/DOWN
Wire 1b
Air intake grille is raised/lowered by
UP/DOWN
UP/DOWN
commands of UP and DOWN.
Machine 2
Machine 1
Air intake grille does not move under the
state of no-load detection or obstacle detection.
Air intake grille stops automatically at the set lowering
distance from the ceiling level.
Detection
STOP
Wire 2b
switch
Wire 2a
It stops in the cases below :
• When it reaches at the set lowering distance from
the ceiling level.
It automatically stops after a predetermined period
Wire 1a
of lowering.
Fig.1
• When it is stored in the panel.
The air intake grille is judged to be stored in the panel
when the storage detection switch is pressed for 3 seconds continuously.
• When receiving commands of STOP, DOWN while moving up or UP while moving down.
The STOP button is only available on the automatic filter elevation panel remote controller.
When the wired remote controller is used, there will be a slight delay in stopping due to transmission speed.
• When both wire 1b and 2b are not loaded.
Only the wire b in each UP/DOWN Machine has a tension detection switch.
(2) Special operation
Storage operation
Case : Obstruction of the raising grille before storage or malfunction of storage detection switch
Storage operation will be performed when the intake grille has been raised the set distance but the
storage detection switch is not engaged.
In this case, the operation below will be repeated up to 4 times.
10 cm down 30 cm up
····
10 cm down 30 cm up
No-load detection
Case : UP/DOWN commands with no grille suspended.
When both wire 1b and wire 2b are not loaded, the wires will not move.
Obstacle detection
Case : Making contact with something while lowering.
Should the loads on the wire 1b and wire 2b be removed due to the grille making contact with something while lowering,
the lowering operation will stop. The grille will then be raised 10 cm and stop again.
[Emergency operation]
• When the wireless remote controller cannot be used (in the case of battery discharge, misplacing of the wireless
remote controller, malfunctioning and so on), the emergency switch on the receiver can be used as an alternative.
* When doing this, particular caution must be taken not to fall.
To lower the air intake grille : Press the
button once.
(For emergency heating operation, press and hold this button.)
To raise the air intake grille : Press the
button once.
(For emergency cooling operation, press and hold this button.)
• To stop the air intake grille from moving, use the opposite buttons to those used to initiate movement.
(To stop it from lowering, press the UP button; To stop it from rising, press the Down button.)
• If up/down machine is out of order, fix air intake grille temporarily and the indoor unit can be operated.
* For details, refer to installation manual for the attachment of grille.
OCH412G
43
11-3. ELECTRICAL CIRCUIT (Controller board and wiring diagram (Panel))
11-3-1. Dip SW 22 type
SW22
LS1
BLK
BLK
UK1
B O Y
R R L
N N W
LS21
2
1
Panel
Indoor unit
3
WHT
WHT
CN3G
1 2
W.B
BZ
3 2 1
SW1
(BLK)
CN2G
(BLK)
MU1
FUSE
SW2
CN2F
(BLK)
RU
1 2
1 2
UK1
CN2E
(RED)
LS21
2 WHT
1 WHT
CN2C
CN2B
(WHT)
(WHT)
1 2
SW22
MU1
ON
1 2 3 4 5 6 7 8 9 10
CNB
(WHT)
B R
L E
K D
9
I.B
CN90
(WHT)
CN22
(BLU)
CN3G
(BLK)
CNAC
(WHT)
GRN/YLW
R R B
E E L
1 2
1
2
3
4
5
6
7
8
9
CN3A D D K
B R
L E
K D
(RED)
5 3 1
TB5
U.B
Symbol
U.B
Name
Auto grille controller board
FUSE
Fuse (3.15A)
SW22
Switch (Lowering distance set up)
Up/down machine
Motor (Up/down)
Limit switch (tension detection)
UK1
MU1
LS21
I.B
SYMBOL
FUSE
SW1
SW2
SW3
BZ
RU
SW1
SW2
LS1
R.B
1
2
2
R.B
Name
Wireless remote controller board
Buzzer
Receiver
Emergency switch (heating/down)
Emergency switch (cooling/up)
Limit switch (storage detection)
Wired remote controller
Indoor controller board
11-3-2. Dip SW 2 type
U.B
Symbol
W.B
TB6
1
SW2
NAME
CONTROLLER BOARD
FUSE (T3.15AL250V)
SWITCH (MODEL SELECTION)
SWITCH (LOWERING DISTANCE)
SWITCH (SYSTEM SELECTION)
LED1
LED RED
(MICROCOMPUTER POWER)
LED2
LED RED
(GRILLE CONDITION)
OCH412G
SYMBOL
I.B
W.B
BZ
RU
SW1
SW2
NAME
SYMBOL
INDOOR UNIT CONTROLLER BOARD UK1
M
WIRELESS SIGNAL RECEIVER BOARD
LS21
BUZZER
LS1
RECEIVING UNIT
R.B.
EMERGENCY HEATING
GRILLE / DOWN
LONG PRESS FOR OVER 2 SEC) (SHORT PRESS)
EMERGENCY COOLING
GRILLE / UP
LONG PRESS FOR OVER 2 SEC) (SHORT PRESS)
44
NAME
UP/DOWN MACHINE
MOTOR (FOR GRILLE UP/DOWN)
LIMIT SWITCH (TENSION DETECTION)
LIMIT SWITCH (STORAGE DETECTION)
WIRED REMOTE CONTROLLER
11-3-3. Check point of trouble
<LED (SW22 type) /LED2 (SW2 type) display>
Turn OFF
: No power supply
Blink
: Storage detection switch ON (short)
One blink
: Storage detection switch OFF (open)
Two blinks
: Tension detection switch OFF (open)
<controller board>
Check item
Check point
Normal
Remarks
Up/down controller P.C.
board supply voltage
CN3A
(between 3-5)
AC 198~264 V
Up/down machine
supply voltage
CN2B, CN2C
DC 10~12 V
Check when instructing up/down with LED blinking
once.
Check item
Check point
Normal
Check contents
Storage detection switch
CN2E
open or short
Check if it is short when pressing push switch.
Tension detection switch
CN2F, CN2G
open or short
Check if it is short when wire b is tensioned.
Motor
CN2B, CN2C
Check if it is not open or short.
Entwining wires
Pull wire
5~20 Retension:
about 2 kgf
<Up/down machine>
Check if wire is drawn out by pulling with 3 kgf.
11-4. TROUBLESHOOTING
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OCH412G
45
7KLVLVQRUPDO
11-5. ROTATION FUNCTION (AND BACK-UP FUNCTION, 2ND STAGE CUT-IN FUNCTION)
11-5-1. Operation
(1) Rotation function (and Back-up function)
• Outline of functions
· Main and sub unit operate alternately according to the interval of rotation setting.
* Main and sub unit should be set by refrigerant address. (Outdoor Dip switch setting)
Refrigerant address "00"
Main unit
Refrigerant address "01"
Sub unit
· When error occurs to one unit, another unit will start operation. (Back-up function)
• System constraint
· This function is available only by the grouping control system (INDOOR UNIT : OUTDOOR UNIT=1:1) of 2 refrigerant
groups. (Refer to Fig. 1)
· Main indoor unit should be connected for wired remote controller and the transmission line (TB5) for main and sub unit
should also be connected. (Refer to Fig. 1)
(This function cannot be set by wireless remote controller.)
· Set refrigerant address of each unit. (Dip switch on the outdoor unit···Refrigerant address 00/01)
Fig. 1
Operation pattern
[Back-up function only]··· Request code number "312"
Error occurs on main unit.
Main
Sub
Start operation
Main
unit
IC-1
Sub
unit
IC-2
Refrigerant address
"00"
Run
Abnormal condition
Stop
Run
3(2)
2
Start operation
Sub
unit
IC-2
3(2)
Main
Sub
Main
Error occurs on main unit.
Sub Main
Sub
Abnormal condition
Run
Stop
Run
Stop
Run
Stop
1~28 days
Sub
unit
IC-2
IC-1
[Rotation function] & [Back-up function]··· Request code number "313~318"
Main
unit
IC-1
OC-2
OC-1
Main
unit
Refrigerant address
"01"
2
RC
OC : Outdoor unit
IC : Indoor unit
RC : Wired remote controller
Run
1~28 days
(Ex:When the request code number is "313", each unit operates alternately in daily cycle.)
Note:
· When the unit is restarted to operate after turning off the power or OFF operation, the unit which was operating will start
operation.
· To operate the main unit, refer to the 11-5-2. and set the request code No. which is not the same as the current one, and set
again the former request code No.
(2) 2nd stage cut-in function
Outline of functions
· When the 1st unit can NOT supply with sufficient capacity for exceptionally high-demand conditions and the actual room
temperature reaches set point *, the 2nd unit starts operation in conjunction with the 1st unit.
· Once the actual room temperature goes down to 4 degrees C below set point *, the 2nd unit stops operation automatically.
(* set point = set temperature by R/C (remote controller) + 4, 6, 8˚C (selectable) )
· Number of operating units is determined according to the room temperature and set point.
· When room temperature becomes higher than set point, standby unit starts. (2 units operation)
· When room temperature falls below set point -4˚C, standby unit stops. (1 unit operation)
OCH412G
46
• System constraint
· This function is available only in cooling mode.
Ex.) Set temp. by R/C = 20°C
Set point = 26°C
When request code number is “323”.
[2nd stage cut-in function]··· Request code number "322~324"
Start operation
26˚C
2nd unit Cut-in
4 degree C
22˚C
2nd unit Cut-out
Main
unit
IC-1
Room temp. Set point
Sub unit start operation
Run
Sub
unit
IC-2
Stop
Run
20˚C
11-5-2. How to set rotation function (Back-up function, 2nd stage cut-in function)
You can set these functions by wired remote controller. (Maintenance monitor)
NOTICE
Both main and sub unit should be set in same setting.
Every time replacing indoor controller board for servicing, the function should be set again.
(1) Request Code List
Rotation setting
Setting No.
(Request code)
No.1
(310)
No.2
(311)
No.3
(312)
No.4
(313)
No.5
(314)
No.6
(315)
No.7
(316)
No.8
(317)
No.9
(318)
Initial
setting
Setting contents
Monitoring the request code of current setting.
Rotation and Back-up OFF (Normal group control operation)
Back-up function only
Rotation ON (Alternating interval = 1day) and back-up function
Rotation ON (Alternating interval = 3days) and back-up function
Rotation ON (Alternating interval = 5days) and back-up function
Rotation ON (Alternating interval = 7days) and back-up function
Rotation ON (Alternating interval = 14days) and back-up function
Rotation ON (Alternating interval = 28days) and back-up function
2nd unit cut-in setting
Setting No.
(Request code)
No.1
(320)
No.2
(321)
No.3
(322)
No.4
(323)
No.5
(324)
OCH412G
Room temp. < Set point -4
Sub unit stop
Initial
setting
Setting contents
Monitoring the request code of current setting.
Cut-in function OFF
Cut-in function ON(Set point = Set temp.+ 4°C(7.2°F)
Cut-in function ON(Set point = Set temp.+ 6°C(10.8°F)
Cut-in function ON(Set point = Set temp.+ 8°C(14.4°F)
47
Stop
(2) Setting method of each function by wired remote controller
PAR-30MAA/PAR-31MAA
Main
Main menu
Maintenance
Initial setting
Service
Main display:
Cursor
F1
F2
3/3
1 Press the
button.
Select "Service" with the [Cursor] buttons ( F1 and F2 ) or the [Page] buttons ( F3
and F4 ), and press the
button.
Page
F3
F4
Enter the current maintenance password (4 numerical digits).
Service menu
Enter maintenance password
9999
• Move cursor to the digit you want to change with the F1 or F2 button.
• Set each number (0 through 9) with the F3 or F4 button.
(Note: The initial maintenance password is "9999".)
Select:
Cursor
Then, press the
Service menu
1/2
Test run
Input maintenance info.
Function setting
Check
Self check
Main menu:
Cursor
Select "Check" with the F1 or F2 button, and press the
Check menu
1/1
Error history
Refrigerant volume check
Refrigerant leak check
Smooth maintenance
Request code
Service menu:
Cursor
Select "Request code" with the F1 or F2 button, and press the
Request code
Ref.address
0
Request code 004
Request:
Cursor
button.
• Select the item to be changed with the F1 or F2 button.
• Select the required setting with the F3 or F4 button.
Press the F3 or F4 button to set the Refrigerant address "0".
Press the F3 or F4 button to set the desired request code No.
• Rotation & Back up operation: Please enter one request code from 311 to 318.
• 2nd stage cut-in operation: Please enter one request code from 321 to 324.
Press the
button. Data will be collected and displayed.
Press the F3 or F4 button to set the Refrigerant address "1".
Please set above ~ .
C
Press the
button for three seconds to switch to [Maintenance
monitor].
appears on the screen (at D ) when [Maintenance monitor] is
activated.
A
D
B
B Refrigerant address
C Data display area
D Request code display area
OCH412G
button.
1 To stop air conditioner, press the ON/OFF button.
Press the TEST button for three seconds so that "Maintenance
mode" appears on the screen (at A ).
"00" (Refrigerant address) appears on the screen in a few minutes (at B ).
PAR-21MAA
button.
Set the Refrigerant address and Request code.
To return to the Main menu, press the
button.
Press the [
buttons (
and
) to set the desired
request code No.
Rotation & Back up operation: Please enter one request code from 311
to 318.
2nd stage cut-in operation: Please enter one request code from 321 to 324.
Press the
button to perform data request.
(The requested data will be displayed at C in the same way as in
maintenance mode.)
Press the [TEMP] buttons (
and
) to set the Refrigerant
address 01.
"01" (Refrigerant address) appears on the screen in a few minutes (at B ).
Please set above ~ .
To return to normal mode, press the ON/OFF button.
48
12
DISASSEMBLY PROCEDURE
PLA-RP35/50/60/71/100/125/140BA.UK
PLA-RP35/50/60/71BA1.UK
PLA-RP35/50/60/71/100/125/140BA#2.UK
PLA-RP35/50/60/71BAR3.UK
PLA-RP71/100/125/140BA2.UK
Be careful when removing heavy parts.
OPERATING PROCEDURE
PHOTOS & ILLUSTRATIONS
1. Removing the air intake grille
(1) Slide the knob of air intake grille toward the arrow 1 to
open the air intake grille.
(2) Remove drop prevention hook from the panel.
(3) Slide the shaft in the hinge to the direction of the arrow
and remove the air intake grille.
Figure 1
2. Removing the room temperature thermistor (TH1)
(1) Remove the air intake grille and the filter. (See Figure 1)
(2) Remove the 2 screws from the electrical box.
(3) Disconnect the connector CN20 (Red) from the indoor
controller board.
(4) Remove the room temperature thermistor and holder.
Photo 1
Filter
Reactor cover
Fixing
screw
(reactor)
3. Removing the reactor (DCL)
(1) Remove the air intake grille and the filter. (See Figure 1)
(2) Remove the 2 screws from the reactor cover.
(3) Disconnect the relay connector of reactor.
(4) Remove 2 reactor fixing screws and remove the reactor.
4. Removing the indoor controller board (I.B)
(1) Remove the air intake grille and the filter. (See Figure 1)
(2) Remove the 2 screws from the electrical box cover.
(3) Disconnect the connectors :
CNMF (White/7P) for fan motor
CN44 (White/4P) for thermistor (TH2/TH5)
CNP (Blue/3P) for drain pump
CN4F (White/4P) for float switch
CN01 (Black/5P) for earth and reactor
CNV (White/20P) for vane motor
(4) Remove the 6 supports from indoor controller board.
(5) Remove the indoor controller board.
5. Removing the electrical box
(1) Remove the air intake grille and the filter. (See Figure 1)
(2) Remove the 2 screws from the electrical box cover.
(3) Disconnect the connectors. (Refer to procedure 4)
(4) Remove 2 electrical box fixing screws and remove 2 hooks.
(5) Pull the electrical box.
<Electrical parts in the electrical box>
Indoor controller board
Terminal block (TB4)(TB5)
OCH412G
49
Electrical box cover
Photo 2
Fixing screw
(Electrical box)
Bell mouth
Electrical box
Fixing screw
Electrical box
Room temp.
thermistor (TH1)
Turbo fan
Indoor controller
board (I.B)
Electrical box
Fixing screw
OPERATING PROCEDURE
PHOTOS & ILLUSTRATIONS
Coil plate
Photo 3
6. Removing the fan and fan motor (MF)
(1) Remove the electrical box. (See Photo 2)
(2) Remove the bell mouth (3 screws). (See Photo 2)
(3) Remove the turbo fan nut.
(4) Pull out the turbo fan.
(5) Remove the wire cover (3 screws).
(6) Remove 2 wiring clamps.
(7) Disconnect the connector of the fan motor (CNMF).
(8) Remove the 3 nuts and washers and rubber mounts of the
fan motor.
Fan motor
Clamp
Wire cover
fixing screw
Nut
Washer
Rubber mount
Figure 2
7. Removing the panel
(1) Remove the air intake grille and the filter. (See Figure 1)
(2) Disconnect the connector CNV (White/20P).
Corner panel (See Figure 2)
(3) Remove the corner screw.
(4) Slide the corner panel to the direction of the arrow 1, and
remove the corner panel.
Panel (See Photo 4, 5)
(5) Remove the 2 screws from the panel which fix to the oval
holes.
(6) Rotate the panel a little to come to the bell shaped hole
where the screw is large and remove the panel.
Screw
Detail Screw Corner panel
Panel
Corner panel
Photo 4
Photo 5
Ball shaped hole
Oval hole
Photo 6
8. Removing the drain pan
(1) Remove the air intake grille and the filter. (See Figure 1)
(2) Remove the 2 screws from the electrical box cover.
(3) Disconnect the connectors. (Refer to procedure 4)
(4) Remove the panel. (See Photo 4, 5)
(5) Remove the electrical wiring service panel (3 screws).
(6) Remove the electrical box. (See Photo 2)
(7) Remove the bell mouth. (See Photo 2)
(8) Remove the 4 screws and pull out the drain pan.
* Pull out the left and right of the pan gradually.
Be careful not to crack or damage the pan.
Drain pan
fixing screw
Drain pan
fixing screw
Electrical wiring
service panel
Drain pan
fixing screw
Electrical wiring service panel fixing screw
9. Removing the pipe temperature thermistor (TH2) and
condenser evaporator temperature thermistor (TH5)
(1) Remove the drain pan. (See Photo 6)
(2) Remove the turbo fan. (See Photo 3)
(3) Remove the 2 wiring clamps. (See Photo 3)
(4) Remove the coil plate (2 screws).
(5) Remove the thermistors which are inserted into the holders
installed to the thin copper pipe.
(6) Disconnect the 4-pin white connector (CN44).
Photo 7
Drain pan
Liquid pipe temp. thermistor (TH2)
Cond./ eva. thermistor (TH5)
OCH412G
50
OPERATING PROCEDURE
PHOTOS & ILLUSTRATIONS
10. Removing the drain pump (DP) and float switch (FS)
(1) Remove the drain pan. (See Photo 6)
(2) Cut the hose band and remove the hose.
(3) Remove the drain pump assembly (3 screws and 2 hooks).
(4) Remove the drain pump (3 screws).
(5) Remove the float switch (2 screws).
Photo 8
Float switch
Hose band
Drain pump
Drain pump
assembly fixing screw
Photo 9
Drain pump fixing screw
11. Removing the heat exchanger
(1) Remove the drain pan. (See Photo 6)
(2) Remove the 3 screws of the piping cover, and pull out
piping cover.
(3) Remove the 2 screws of coil plate.
(4) Remove the 2 screws of the coil.
(5) Remove the screw of the coil support.
(6) Pull out the heat exchanger.
Photo 10
Piping cover
Coil plate
Heat exchanger
fixing screw
OCH412G
51
Float switch fixing screw
Heat exchanger
Coil support
Coil support fixing screw
TM
HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Copyright 2007 MITSUBISHI ELECTRIC CORPORATION
Distributed in Aug. 2013 No.OCH412 REVISED EDITION-G
Distributed in Nov. 2012 No.OCH412 REVISED EDITION-F
Distributed in Aug. 2009 No.OCH412 REVISED EDITION-E
Distributed in Mar. 2009 No.OCH412 REVISED EDITION-D
Distributed in Apr. 2008 No.OCH412 REVISED EDITION-C
Distributed in Feb. 2008 No.OCH412 REVISED EDITION-B
Distributed in Oct. 2007 No.OCH412 REVISED EDITION-A
Distributed in Mar. 2007 No.OCH412 PDF 7
Made in Japan
PDF 6
PDF 6
PDF 7
PDF 7
PDF 7
New publication, effective Aug. 2013
Specifications are subject to change without notice.
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