Mitsubishi Electric PLFY-WP32VBM-E Operating manual

TECHNICAL & SERVICE MANUAL
Indoor unit
[Model Name]
PLFY-WP32VBM-E
PLFY-WP40VBM-E
PLFY-WP50VBM-E
No. OCH586
CONTENTS
1. SAFETY PRECAUTION.......................... 2
2. PARTS NAMES AND FUNCTIONS........2
3. SPECIFICATIONS...................................7
4. 4-WAY AIR FLOW SYSTEM................. 10
5. OUTLINES AND DIMENSIONS............13
6. WIRING DIAGRAM...............................15
7.
REFRIGERANT SYSTEM DIAGRAM...... 16
8. TROUBLESHOOTING..........................17
9. SPECIAL FUNCTION........................... 24
10. DISASSEMBLY PROCEDURE.............31
Notes:
• This manual describes ser-
vice data of the indoor units
only.
• RoHS compliant products
have <G> mark on the spec
name plate.
April 2015
INDOOR UNIT
Model name
indication
PARTS CATALOG (OCB586)
HEAT PUMP AIR CONDITIONERS
PLFY-WP32VBM-E.UK
PLFY-WP40VBM-E.UK
PLFY-WP50VBM-E.UK
[Service Ref.]

32 3
Precations for handling units for use with water
Only use water.
Only use clean water as a refrigerant. The use of water
outside the specification may damage the refrigerant citcuit.
Do not use the existing water piping.
Store the piping materials indoors, and keep both ends of
the pipes sealed until immediately before installation. Keep
the joints wrapped in plastic bags. If dust or dirt enters the
water circuit, it may damage the heat exchanger and cause
water leakage.
.CAUTION
1SAFETY PRECAUTION
2PARTS NAMES AND FUNCTIONS
Drain pipe
Filter
Vane
Gas pipe
Liquid pipe
Air outlet
i-see sensor
(option)
Air intake
(Intake grille)
2-1. INDOOR UNIT
OCH586

33
ON/OFF TEMP
FAN
VANE
TEST RUN
AUTO STOP
AUTO START
h
min
LOUVER
MODE
CHECK
RESETSET CLOCK
MODEL SELECT
NOTAVAILABLE
CHECK TEST RUN
°C
AMPM
AMPM
VANE CONTROL button
Used to change the air flow direction.
CLOCK button
RESET button
SET button
ON/OFF button
The unit is turned ON and OFF alternately
each time the button is pressed.
MODE SELECT button
Used to switch the operation mode between
cooling, drying, heating, auto and fan mode.
CHECK-TEST RUN buttons
Only press this button to perform an
inspection check or test operation.
Do not use it for normal operation.
FAN SPEED SELECT button
Used to change the fan speed.
TIMER display
Displays when in timer operation or when
setting timer.
buttons
SET TEMPERATURE button sets any desired
room temperature.
CLOCK display
Displays the current time.
“ ” “ ” display
Displays the order of timer operation.
“ ” “ ” display
Displays whether timer is on or off.
Buttons used to set the “hour and minute” of
the current time and timer settings.
“h” and “min” buttons
display
display
FAN SPEED display indicates which fan
speed has been selected.
display
The vertical direction of air flow is indicated.
display
Blinks when model is selected.
display
display
CHECK and TEST RUN display indicate that
the unit is being checked or test-run.
display
OPERATION MODE display
Operation mode display indicates which
operation mode is in effect.
AUTO STOP (OFF timer): when this switch
is set, the air conditioner will be
automatically stopped at the preset time.
AUTO START (ON timer): when this switch is
set, the air conditioner will be automatically
started at the preset time.
MODEL SELECT
CHECK TEST RUN
LOUVER button
Changes left/right airflow direction.
(Not available for this model.)
SET TEMP. display indicates the desired
temperature which is set.
Lights up while the signal is transmitted to
the indoor unit when the button is pressed.
TIMER CONTROL buttons
2-2. WIRELESS REMOTE CONTROLLER
OCH586

4 5
Function buttons
F1 F2 F3 F4
Press to turn ON/OFF the indoor unit.
ON/OFF button
When the backlight is off, pressing any button turns
the backlight on and does not perform its function.
(except for the (ON/OFF) button)
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.
Press to save the setting.
SELECT button
Press to return to the previous screen.
RETURN button
Press to bring up the Main menu.
MENU button
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.
Backlit LCD
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.
ON/OFF lamp
Main display : Press to change the operation mode.
Main menu : Press to move the cursor down.
Function button F1
Main display : Press to decrease temperature.
Main menu : Press to move the cursor up.
Function button F2
Main display : Press to increase temperature.
Main menu : Press to go to the previous page.
Function button F3
Main display : Press to change the fan speed.
Main menu : Press to go to the next page.
Function button F4
Fri
Room
Set temp.
Mode Temp. Fan
Cool Auto
Main
Main display:
Cursor Page
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
<Main display> <Main menu>
Function guide
2-3. WIRED REMOTE CONTROLLER <PAR-30MAA><PAR-31MAA>
The functions which can be used are restricted according to each model.
: Supported : Unsupported
Function PAR-30MAA/PAR-31MAA PAR-21MAA
Body Product size H × W × D (mm) 120 × 120 × 19 120 × 130 × 19
LCD Full Dot LCD Partial Dot LCD
Backlight
Energy-saving Automatic return to the preset temperature
Restriction Setting the temperature range restriction
Function Operation lock function
Weekly timer
ON/OFF timer
Manual vane angle
Wired remote controller function
OCH586

5
Fri
Mode Temp. Fan
Room
Cool Auto
Set temp.
Fri
Cool
Mode Temp. Fan
AutoSet temp.
Fri
Mode Temp. Fan
Room
Cool Auto
Set temp.
Fri
Cool
Mode Temp. Fan
AutoSet temp.
The main display can be displayed in two different modes: "Full" and "Basic".
T
he 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.
Most settings (except ON/OFF, mode, fan speed, temperature) can be made from the Menu screen.
Indoor unit operation mode appears here.
Operation mode
Preset temperature appears here.
Preset temperature
Current time appears here.
Clock (See the Installation Manual.)
Fan speed
Fan speed setting appears here.
Functions of the corresponding buttons appear here.
Button function guide
Appears when the ON/OFF operation is centrally controlled.
Appears when the operation mode is centrally controlled.
Appears when the preset temperature is centrally controlled.
Appears when the lter reset function is centrally controlled.
Appears when lter needs maintenance.
Current room temperature appears here.
Room temperature
(See the Installation Manual.)
Appears when the buttons are locked.
Appears when the ON/OFF timer or Night setback function
is enabled.
Appears when the Weekly timer is enabled.
Appears while the units are operated in the energy-save
mode.
Appears when the built-in thermistor on the remote control-
ler is activated to monitor the room temperature.
appears when the thermistor on the indoor unit is acti-
vated to monitor the room temperature.
Indicates the vane setting.
Indicates the louver setting.
Indicates the ventilation setting.
Appears when the preset temperature range is restricted.
OCH586

76 7
°F°C
°F°C
ERROR CODE
AFTER
TIMER
TIME SUN MON TUE WED THU FRI SAT
ON
OFF
Hr
AFTER
FILTER
FUNCTION
ONLY1Hr.
WEEKLY
SIMPLE
AUTO OFF
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
●
●
Display Section
For the purposes of explanation,
all parts of the display are shown.
During actual operation, only
the relevant items will be lit.
Identifies the current operation
Shows the operating mode, etc.
Multilanguage display is available.
“Centrally Controlled” indicator
Indicates that operation from the
remote controller has been prohib-
ited by a master controller.
“Timer is Off” indicator
Indicates that the timer is off.
Temperature Setting
Shows the target temperature.
Day-of-Week
Shows the current day of the week.
Time/Timer Display
Shows the current time, unless the simple or Auto Off
timer is set.
If the simple or Auto Off timer is set, the time to be
switched off is shown.
“Sensor” indication
Displays when the remote controller
sensor is used.
“Locked” indicator
Indicates that remote controller but-
tons have been locked.
“Clean The Filter” indicator
To be displayed on when it is time to
clean the filter.
Timer indicators
The indicator comes on if the corre-
sponding timer is set.
Up/Down Air Direction indica-
tor
The indicator shows the direc-
tion of the outcoming airflow.
“One Hour Only” indicator
Room Temperature display
Shows the room temperature. The room
temperature display range is 8 to 39:.
The display blinks if the temperature
is less than 8:or 39:or more.
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.
Fan Speed indicator
Shows the selected fan speed.
Ventilation indicator
Appears when the unit is running in
Ventilation mode.
Operation Section
Temperature setting buttons
Down
Up
Timer Menu button
(Monitor/Set button)
Mode button (Return button)
Set Time buttons
Back
Ahead
Timer On/Off button
(Set Day button)
Opening the
cover
ON/OFF button
Fan Speed button
Filter button
(<Enter> button)
Test Run button
Check button (Clear button)
Airflow Up/Down button
Louver button
( Operation button)
To return operation
number
Ventilation button
( Operation button)
To go to next operation
number
Note:
“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.
“NOTAVAILABLE” 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.
Built-in temperature sensor
Displays 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.
2-4. WIRED REMOTE CONTROLLER <PAR-21MAA>
OCH586

77
3-1. SPECIFICATIONS
3SPECIFICATIONS
*1 <Cooling> Indoor temperature: 27°C D.B./19°C W.B [81°F D.B./66°F W.B] Outdoor temperature: 35°C D.B. [95°F D.B.]
<Heating> Indoor temperature: 20°C D.B. [68°F D.B.] Outdoor temperature: 7°C D.B./6°C D.B.[45°F D.B./43°F D.B.]
Service Ref. PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK
Power source 1-Phase 220–240 V, 50/60 Hz
Cooling capacity
( N o m i n a l )
*1
*1
*1
kW 3.6
3,100
12,300
4.5
3,100
12,300
5.6
3,100
12,300
kcal/h
BTU/h
Power input kW 0.04 0.04 0.05
Current input A 0.35 0.35 0.45
Heating capacity
(Nominal)
*1
*1
*1
kW 4.0
3,400
13,600
4.0
3,400
13,600
4.0
3,400
13,600
kcal/h
BTU/h
Power input kW 0.03 0.03 0.04
Current input A 0.28 0.28 0.38
External nish Galvanized steel sheet
External dimension H × W × D mm 258 × 840 × 840
10-3/16 × 33-1/8 × 33-1/8
in
Net weight kg [lb] 22 [10]
Decoration panel Model PLP-6BA PLP-6BA PLP-6BA
External nish MUNSELL (6.4Y 8.9/0.4)
Dimension
H × W × D
mm 35 × 950 × 950
1-3/8 × 37-7/16 × 37-7/16
in
Net weight kg [lb] 13 [6]
Heat exchanger Cross n (Aluminium n and copper tube)
FAN Type × Quantity Turbo fan × 1 Turbo fan × 1 Turbo fan × 1
Pa 0
0
0
0
0
0
mmH2O
Motor type DC motor
Motor output kW 0.050 0.050 0.050
Driving mechanism Direct drive
Air ow rate
(Low-Mid2-
Mid1-High)
m³/min 16 - 15 - 14 - 13
183 - 200 - 217 - 233
388 - 424 - 459 - 494
16 - 15 - 14 - 13
183 - 200 - 217 - 233
388 - 424 - 459 - 494
19 - 17 - 15 - 13
183 - 200 - 217 - 233
388 - 424 - 459 - 494
L/s
cfm
Noise level (Low-Mid2-Mid1-High)
(measure on anechoic room)
dB <A> 31 - 30 - 29 - 27 31 - 30 - 29 - 27 34 - 32 - 30 - 27
Insulation material PS
Air lter PP honeycomb
Protection device Fuse
Connectable outdoor unit R410, CITY MULTI
Diameter of refrigerant
pipe
Water inlet RC 3/4 screw
Water outlet RC 3/4 screw
Field drain pipe size mm [in] O.D {32 (VP-25)
Standard attachment Document, accesory Installation Manual, Instruction Book
Remark Optional parts
Decotation panel*2PLP-6BA PLP-6BA PLP-6BA
Air outlet shutter plate PAC-SH51SP-E PAC-SH51SP-E PAC-SH51SP-E
High efciency lter element *3 PAC-SH59KF-E PAC-SH59KF-E PAC-SH59KF-E
Multi-function casement
PAC-SH53TM-E PAC-SH53TM-E PAC-SH53TM-E
*2
PLFY-P-VBM-E should use together with PLP-6BA.
*3
PAC-SH53TM-E is necessary to use with lter PAC-SH59KF-E.
Installation Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items
shall be referred to the Installation Manual.
OCH586

8 9
3-2. ELECTRICAL PARTS SPECIFICATIONS
Parts nameService Ref. Symbol
TH21
TH22
TH23
FUSE
MF
MV
DP
FS
TB2
TB5
TB15
Resistance 0:/15 k", 10:/9.6 k", 20:/6.3 k", 25:/5.4 k", 30:/4.3 k", 40:/3.0 k"
Resistance 0:/15 k", 10:/9.6 k", 20:/6.3 k", 25:/5.4 k", 30:/4.3 k", 40:/3.0 k"
Resistance 0:/15 k", 10:/9.6 k", 20:/6.3 k", 25:/5.4 k", 30:/4.3 k", 40:/3.0 k"
250 V 6.3 A
(L, N, ;) Rated to 330V 30A *
(M1, M2, S) Rated to 250V 20A *
(1, 2) Rated to 250V 10A *
Pipe temperature detection
thermistor/ from HBC unit
Pipe temperature detection
thermistor/ to HBC unit
Vane motor
Drain pump
Drain float switch
Room temperature
detection thermistor
Fuse
(Indoor controller board)
Fan motor
Power supply terminal
block
Transmission terminal
block
MA remote controller
terminal block
8-pole OUTPUT 50W
MSBPC20M04
12 V DC 300
" /phase
PLD-12230ME-1
INPUT 12/10.8W 24R/Hr
*Refer to WIRING DIAGRAM for the supplied voltage.
open/short detection
PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK
3-3. SOUND LEVEL
* Measured in anechoic room.
PLFY-WP·VBM-E
Service Ref.
PLFY-WP50VBM-E.UK
31 - 30 - 29 - 27
34 - 32 - 30 - 27
Sound level dB (A)
Sound level at anechoic room : Low-Mid2-Mid1-High
1.5m
Measurement location
PLFY-WP32VBM-E.UK
PLFY-WP40VBM-E.UK
OCH586

9
PLFY-WP32VBM-E.UK
PLFY-WP40VBM-E.UK
External static pressure : 0Pa
Power source :
220,230,240V, 50Hz / 220V, 60Hz
PLFY-WP50VBM-E.UK
External static pressure : 0Pa
Power source :
220,230,240V, 50Hz / 220V, 60Hz
High 50/60Hz Middle1 50/60Hz
Low 50/60Hz Middle2 50/60Hz High 50/60Hz Middle1 50/60Hz Low 50/60Hz Middle2 50/60Hz
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
3-4. NC CURVES
OCH586

1110 11
44-WAY AIR FLOW SYSTEM
4-1. PLACEMENT OF THE AIR OUTLETS
• For this grille, the blowout direction comes in 11 patterns.
Also, by setting the remote controller to the appropriate settings, you can adjust the airflow and speed. Select the settings
from Table1 according to the location in which you want to install the unit.
1) Decide on the pattern of the airflow direction.
Blowout direction
pattern
4-direction<Table 1> 3-direction 2-direction Note1.
For 3 and 2-direction
settings, please use
the air outlet shutter
plate (option).
Pattern 1 Initial setting Pattern 4 1 air outlet
fully closed Pattern 6 2 air outlet fully closed
1
Silent
2.5 m
2.7 m
3.0 m
2
Standard
2.7 m
3.0 m
3.3 m
3
High ceiling
3.5 m
3.5 m
3.5 m
4 direction
3 direction
2 direction
SWA
SWB
PLFY-WP32/40/50VBM-E.UK
4
3
2
2) According to the number of air outlets and height of the ceiling to install the unit, be sure to set up the switches
(SWA, SWB) on the circuit board to the appropriate setting.
• Correspondence of ceiling heights to numbers of air outlets
SW14
SW11
SW12
12345678910
ON
OFF
SW1
SWC
CN82
CN43
3
2
SWA
1
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
(10s DIGIT) (1s DIGIT)
. /.
(BRANCH No.)
2
3
SWB
4
ADDRESS
1
2
OCH586

1111
CN51
Multiple remote
controller adapter
PAC-SA88HA-E
Indoor controller board
Distance between indoor
controller board and relay
must be within 10m.
Be sure to secure insulation
material by tape, etc
5Green
Yellow −
Orange +
Connector (5P)
Indoor unit side Multiple remote
controller adapter
PAC-SA88HA-E
Be sure to secure insulation
material by tape, etc
Installation at site
CN51
on
indoor
controller
board Red
Brown
1
~
CN51
MB
4-3. OPERATION IN CONJUNCTION WITH
DUCT FAN (Booster fan)
• Whenever the indoor unit is operating, the duct fan also oper-
ates.
(1) Connect the optional multiple remote controller adapter
(PAC-SA88HA-E) to the connector CN51 on the indoor
controller board.
(2) Drive the relay after connecting the 12 V DC relay
between the Yellow and Orange connector wires.
MB: Electromagnetic switch power relay for duct fan.
X:
Auxiliary relay (For 12 V DC, coil rating: 1.0W or below)
Branch duct hole
A
A
A
14-[2.8 burring hole
Indoor unit
[150 cut out hole
Fresh air intake hole
[175 burring hole pitch
Drain pipe
Fresh air intake hole diagram
Water pipe
3-[2.8 burring hole
Branch duct hole diagram
(view from either side)
[125 burring
hole pitch
[100 cut
out hole
Ceiling
*158
120
120
350
90
70°
100100 90
100 130
*155 *167
4-2. BRANCH DUCT HOLE AND FRESH AIR INTAKE HOLE
At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when
required.
• A fresh air intake hole for the optional multi function casement can also be made.
Note:
The figures marked with * in the drawing below represent the dimensions of the main unit excluding those of the optional multi
function casement.
When installing the optional multi function casement, add 135 mm to the dimensions marked on the figure.
When installing the branch ducts, be sure to insulate adequately.
Otherwise, condensation and dripping may occur.
OCH586

1312 13
−200
−150
−100
−50
0
50
0 1 2 3 4 5 6
Static pressure[Pa]
Airflow rate [m3/min]
-200
-150
-100
-50
0
50
0 2 4 6 8
Static pressure[Pa]
Airflow rate [m3/min]
Static pressure[Pa]
Static pressure[Pa]
-200
-150
-100
-50
0
50
0 2 4 6 8
2 - inlet
1 - inlet -200
-150
-100
-50
0
50
0 2 4 6 8
2 - inlet
1 - inlet
Airflow rate [m3/min] Airflow rate [m3/min]
−200
−150
−100
−50
0
50
0 1 2 3 4 5 6
2 - inlet
1 - inlet
Static pressure[Pa]
−200
−150
−100
−50
0
50
0 1 2 3 4 5 6
2 - inlet
1 - inlet
Airflow rate [m3/min] Airflow rate [m3/min]
Static pressure[Pa]
1PLFY-P32/40/50VBM-E.UK
Multi function casement + Standard filter Multi function casement + High efficiency filter
Taking air into the unit
4-4. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS
Q
0
BA
C
1Curve in the
graphs
Duct characteristics
at site
Q
A
E C
2
Q
Qa
A D
3
Q…Planned amount of fresh air intake
<m3/min>
A…Static pressure loss of fresh air
intake duct system with airflow
amount Q <Pa>
B…Forced static pressure at air condi-
tioner inlet with airflow amount Q
<Pa>
C…Static pressure of booster fan with
airflow amount Q <Pa>
D…Static pressure loss increase
amount of fresh air intake duct sys-
tem for airflow amount Q <Pa>
E…Static pressure of indoor unit with
airflow amount Q <Pa>
Qa…Estimated amount of fresh air
intake without D <m3/min>
How to read curves
OCH586

1313
5OUTLINES AND DIMENSIONS
PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK
<Standard Panel>
Unit: mm
Air purge valve
60 284
Water pipe
To HBC unit:Rc3/4
Water pipe
From HBC unit:Rc3/4
85
72
*241
*258
*180
Corner pocket
In case of Auto-Grille: PLP-6BAJ
In case of wireless remote
controller: PLP-6BALM
In case of standard grille: PLP-6BA/PLP-6BAMD
Drain hole
Drain pump clean hole
and Drain emergency
drainage hole
Power supply wire,
Indoor unit/Outdoor unit
connecting wire entry
Indoor unit/Outdoor unit
connecting terminal block
1000
mm
or more
Emergency operation switch<Cooling>
and Emergency Up/Down switch<Up>
Emergency operation
switch<Heating>and
Emergency Up/Down switch<Down>
3000mm or more
Indoor unit
Indoor unit
Floor
Obstacle
Control wire entry
Burring hole
Cut out hole
Burring hole pitch
Cut out hole
Detail connecting of Branch duct(Both aspects)
1500mm
or more
Grille
Ceiling
For high
attachment
1800mm or more
from floor
Suspension bolt
lower edge
Vane motor
Air intake grille
Air outlet hole
Air outlet hole
Auto vane
(Air outlet)
Air intake hole
Air intake hole
Grille
Ceiling
Keep approximatety
10 to 15mm space
between unit ceilling
and ceilling slab.
( (
Connected the attached
flexible pipe or socket.
Drain pipe
connected to VP-25
Suspension bolt
M10 or W3/8
Branch duct hole
Fresh air
intake hole
Branch duct hole
Ceiling hole
Suspension bolt pitch
Suspension bolt pitch
Ceiling hole
(7.5)
(7.5)
605 +35
-5
620
DEFROST/STAND BY lamp
Receiver
Operation lamp
For MA-Remote controller
terminal block
160
160
100 130
350
90 100 100 90
*167
*155
500
500
597
M
M
M
M
83 36
950
83
36
950
597
50~70
*140
35
17
*105
*156
*190
160
840
150
90
840
187.5
20~45 860~910 20~45
810 20~45
860~910
20~45
24
160
Power supply
terminal block
14- [ 2.8
[ 175
[ 150
Note 1. 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 inclusion.
Raise is max 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. (Reference of the 2nd sheet of detailed Figure)
1) Requires 400 mm 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 becomes optional
multi-functional casement and concomitant use.
7. When installing the branch ducts, be sure to insulate adequately.
Otherwise condensation and dripping may occur.
(It becomes the cause of dew drops/Wear dew.)
8. As for necessary installation/service space, please refer to the under at figure.
Auto-Grille
Air intake grille Up/down distance
377
Ceiling
Air intake grille
L.L Filter
Max. 4.0m
Ceiling
Cut out hole
Burring hole pitch
Burring hole
Detail drawing of fresh air intake hole
[ 125
3-
[ 2.8
[ 100
*158
OCH586

1514 15
PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK
<Auto Descending Panel>
Air intake grille
Max. 4.0m
L.L Filter Ceiling
Air intake grille Up/down distance
Auto-Grille
Floor
3000mm or more
1800mm or more
from floor
For high
attachment
Indoor unit
Grille
1000mm or more
Obstacle
1500mm
or more
Indoor unit
Ceiling
(Four places)
(One place)
Detail drawing of fresh air intake hole
293
Burring hole
Ceiling knockout hole
Burring hole pitch
Ceiling
Burring hole pitch
Burring hole
Cut out hole
82
Optional parts:
Multi-functional casement side
Main unit side
302
290
350
100 130
90 100 100 90
Detail connecting of Branch duct(Both aspects)
Cut out hole
[175
[150
14-[2.8
3-[2.8
3-[2.8 [125
[100
[100
[125
Burring hole pitch Burring hole
Cut out hole
Air purge valve
Water pipe
To HBC unit
: Rc3/4
Water pipe
From HBC unit
: Rc3/4
90 85 72
393 241
315
60 284
controller: PLP-6BALM
Corner pocket
I-SEE SENSOR
CORNER PANEL
(Option part)
(Multi-functional casement)
Fresh air intake hole
(Multi-functional casement)
Fresh air intake hole
Fresh air intake hole
(Multi-functional casement)
Fresh air intake hole
( )
Main unit
Multi-functional casement
In case of standard grille: PLP-6BA/PLP-6BAMD
In case of Auto-Grille: PLP-6BAJ
In case of wireless remote
Power supply wire,
Indoor unit/Outdoor unit
connecting wire entry
Control wire entry
Suspension bolt
lower edge Ceiling
Keep approximatety
10 to 15mm space
between unit ceilling
and ceilling slab.
Drain pipe
connected to VP-25 Connected the attached
flexible pipe or socket.
( )
Ceiling hole
Suspension bolt pitch
Suspension bolt pitch
Ceiling hole
Branch duct hole
Branch duct hole
For MA-Remote controller
terminal block
Power supply
terminal block
Indoor unit/Outdoor unit
connecting terminal block
Suspension bolt
M10 or W3/8
Operation lamp
Receiver DEFROST/STAND BY lamp
Emergency operation
switch<Cooling>and
Emergency Up/Down switch<Up>
Emergency operation
switch<Heating>and
Emergency Up/Down switch<Down>
Air intake hole
Grille
Auto vane
(Air outlet)
Drain hole
Drain pump clean hole
and Drain emergency
drainage hole
Air intake hole
Vane motor
Air outlet hole
Air outlet hole
Air intake grille
(7.5)
(7.5)
620
605+35
-5
20 ~ 45
160
24
160
187.5
150
840
860~910
20~45
810 20~45
860~910
20~45
840 160
160
275
185~205
35
325
291
240
M
M
M
M
597
597
950
500
500
83
83
36 36
950
377
Note 1. 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 inclusion.
Raise is max 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. (Reference of the 2nd sheet of detailed Figure)
1) Requires 400 mm or more space between transom and ceiling for the installation.
2) The optional high efficiency filter becomes optional multi-functional
casement and concomitant use.
7. When installing the branch ducts, be sure to insulate adequately.
Otherwise condensation and dripping may occur.
(It becomes the cause of dew drops/Wear dew.)
8. As for necessary installation/service space, please refer to the under at figure.
* In case of the optional parts Multi-functional casement
and High-efficiency filter element
Optional parts:
Multi-functional casement
High-efficiency filter element
Unit: mm
OCH586

1515
WIRING DIAGRAM
6
LEGEND
CN27
CN32
CN51
CN52
SW2
SW3
SW4
SWE
CN105
FUSE
X1
LED1
LED2
MF
MV
DP
FS
TB2
TB5
TB15
TH21
TH22
TH23
SW1
SW11
SW12
SW14
SWA
SWB
SWC
W.B.
RU
BZ
LED1
LED2
SW1
SW2
POWER SUPPLY
TRANSMISSION
MA-REMOTE CONTROLLER
ROOM TEMP. DETECTION
(0°C/15kΩ, 25°C/5.4kΩ)
PIPE TEMP. DETECTION/FROM
HBC UNIT
(0°C/15kΩ, 25°C/5.4kΩ)
PIPE TEMP. DETECTION/TO HBC
UNIT (0°C/15kΩ, 25°C/5.4kΩ)
FAN MOTOR
VANE MOTOR
DRAIN PUMP
DRAIN FLOAT SWITCH
TERMINAL
BLOCK
THERMISTOR
I.B. INDOOR CONTROLLER BOARD
CONNECTOR DAMPER
REMOTE SWITCH
CENTRALLY CONTROL
REMOTE INDICATION
CAPACITY CODE
MODE SELECTION
MODEL SELECTION
DRAIN PUMP (TEST MODE)
SWITCH
IT TERMINAL
FUSE (T6.3AL250V)
AUX. RELAY
POWER SUPPLY (I.B.)
POWER SUPPLY (I.B.)
DRAIN PUMP
SYMBOL
A.B.
OPTION PART
ADDRESS BOARD
SWITCH
MODE SELECTION
ADDRESS SETTING ONES DIGIT
ADDRESS SETTING TENS DIGIT
CONNECTION NO.
CEILING HEIGHT SELECTOR
DISCHARGE OUTLET NUMBER
SELECTOR
OPTION SELECTOR
PCB FOR WIRELESS REMOTE CONTROLLER
RECEIVING UNIT
BUZZER
LED (OPERATION INDICATION : GREEN)
LED (PREPARATION FOR HEATING : ORANGE)
EMERGENCY OPERATION (HEAT/DOWN)
EMERGENCY OPERATION (COOL/UP)
SYMBOLNAME SYMBOL NAME NAME
M M M M
*Be sure to turn off the source power
and then disconnect fan motor connector.
(Failure to do so will cause trouble in Fan motor)
A.B.
ADDRESS
CN43
(RED)
ADDRESS
CN81
(RED)
LED2
ADDRESS
CN42 (RED)
ADDRESS
CN82
(RED)
VANE CNV
(WHT)
SWBSWA
SWC
SW1
MV MV MV MV
DP
MF
SW12 SW11
CN32
(WHT) SW3 SW4
SWE
SW2
SW14
2
1
ON
OFF
ON
OFF ON OFF
ONOFF
4
8
12 1
1 3
13
13
7 4 1
111
1 3
3
41
9
54
4 2
1 2
2
1
3
3
15 3
5
4
1
1
1 3
1 6
4
8
1
1 5
1 5
9
8
5 5 5 5
4
1
3
2
1
12345678910
12345678910 12345612345
GRILLE 2
3
4
1
See <Table 1>
M-NET
CN2M
(BLU)
CND
(BLK)
AUTO
GRILLE
POWER
CNAC
(WHT)
D.U.M
CNP
(BLU)
FAN
CNMF*
(WHT)
INTAKE
CN20
(RED)
CN25
(WHT)
FLOAT SW
CN4F
(WHT)
WIRELESS
CN90
(WHT)
MA REMOCON
CN3A
(BLU)
I-SEE SENSOR
CN4Y
(WHT)
I-SEE SENSOR
MOTOR CN6Y
(RED)
WATER PIPE
FROM HBC UNIT/
TO HBC UNIT
CN44
(WHT)
CN41
(WHT)
CN51
(WHT)
CN52
(GRN)
AUTO GRILLE
CN3G
(BLK)
TH21TH23TH22 FS
CN27
(RED)
LED1 X1
CN3A
TB5
(SHIELD)
TB2
BLU
BLU
RED
BLU
GRN/YLW
TO OUTDOOR UNIT
BC CONTROLLER
REMOTE CONTROLLER
DC24-30V
TO NEXT
INDOOR UNIT
PULL BOX
FUSE (16A)
BREAKER
(16A)
POWER SUPPLY
~/N 220-240V 50Hz
220V 60Hz
I.B.
U.B.
CN3G
AUTOMATIC FILTER ELEVATION PANEL
(OPTION PART)
BZ
MT
LED2
SW1
CNB
TO MA-REMOTE
CONTROLLER
DC8.7-13V
I-SEE SENSOR CORNER PANEL
(OPTION PART)
I-SEE
SENSOR
TB15
ORN
ORN
SW2 LED1
RU
W.B.
ON
OFF 123456
ON
OFF 123456
ON
OFF 123456
P32
MODELS SW2
P40
P50
Pair No.
J42 J41
1 4
1 3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
MS
3~ M
1~
N
L
M1
M2
S
t° t° t°
2
1
M
10s
DIGIT 1s DIGIT BRANCH No.
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
The black square (■ ) indicates a switch position.
1 5
CN105
(RED)
<Table 1>
NOTES:
1. At servicing for outdoor unit, always follow the wiring diagram of outdoor unit.
2. In case of using MA-Remote controller, please connect to TB15. (Remote controller wire is non-polar.)
3. In case of using M-NET, please connect to TB5. (Transmission line is non-polar.)
4. Symbol[S] of TB5 is the shield wire connection.
5. Symbols used in wiring diagram above are, : terminal block, : connecter.
6. The setting of the SW2 dip switches differs in the capacity. For the detail, refer to
<Table 1> .
Mark
LED1
Main power supply
Power supply for
MA-Remote controller
Main Power supply (Indoor unit:220-240V)
power on → lamp is lit
Power supply for MA-Remote controller
on → lamp is lit
LED2
Meaning Function
LED on indoor board for service
PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK
OCH586

16 17
7REFRIGERANT SYSTEM DIAGRAM
Heat exchanger
Room temparature
detection thermistor TH21
Pipe temperature detection
thermistor/ from HBC unit
TH22 Water inlet
screw connection
Manual air purge valve
Water inlet
Water outlet
PLFY-WP32/40/50VBM-E
RC 3/4 screw
RC 3/4 screw
Item
Capacity
Pipe temperature detection
thermistor/ to HBC unit
TH23 Water outlet
screw connection
PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK
OCH586

17
TROUBLESHOOTING
8
8-1. HOW TO CHECK THE PARTS
PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK
Parts name Check points
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature of 10 to 30:)
Measure the resistance between the terminals with a tester.
(Winding temperature 20:)
Measure the resistance between the terminals with a tester.
Drain pump (DP)
i-see sensor
(Option)
Drain float switch (FS)
(Refer to “8-1-1. Thermistor” .)
Room temp. detection
thermistor (TH21)
Pipe temp. detection
thermistor/ from HBC unit
(TH22)
Pipe temp. detection
thermistor/ to HBC unit
(TH23)
1
3
YLW
YLW
Normal
4.3 to 9.6 k"
Abnormal
Open or short
Normal Abnormal
290 "Open or short
State of moving part Abnormal
DOWN Other than open
UP Normal
Open
Short Other than short
Measure the resistance between the terminals with a tester.
(At the ambient temperature of 20 to 30:)
Vane motor (MV)
Vane motor for
i-see sensor (Option)
Abnormal
Open or short
Red - Yellow (5–3, 0–8, 5–3, )–8)
Red - Blue (5–1, 0–6, 5–1, )–6)
Red - Orange (5–4, 0–9, 5–4, )–9)
Red - White (5–2, 0–7, 5–2, )–7)
Connector Normal
300 "
Measure the resistance between the terminals with a tester.
(At the ambient temperature of 20 to 30:)
Abnormal
Open or short
Red - Yellow
Red - Blue
Red - Orange
Red - White
Connector Normal
250 "
MV
MV
Normal
Do not disassemble corner panel
with i-see sensor.
Black plastic tape
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.
Abnormal
1.857 to 3.132 V DC Other than the normal
0.939 to 1.506 V DC
2(−)–4(+)
i-see sensor connector
i-see sensor (At the ambient temperature of 10 to 40:)
NOTE : Be careful not to discharge static electricity into electronics.
1(+)–2(−) Other than the normal
4 3 2 1
4 3 1
Blue
Black
Pink
Brown
2
2
1
Moving part
4
3
Switch
Magnet
Moving
Part
Yellow
Blue
Red
Orange
White
Yellow
Blue
Red
Orange
White
OCH586

18 19
0
10
20
30
40
50
-20 -10 0 10 20 30 40 50
< Thermistor for lower temperature >
Temperature (:)
Resistance (k")
<Thermistor characteristic graph>
Room temperature detection thermistor (TH21)
Pipe temperature detection thermistor/from HBC unit (TH22)
Pipe temperature detection thermistor/to HBC unit (TH23)
Thermistor R0=15 kΩ ± 3%
Fixed number of B=3480 ± 2%
Rt=15exp { 3480( ) }
0: 15 kΩ
10: 9.6 kΩ
20: 6.3 kΩ
25: 5.4 kΩ
30: 4.3 kΩ
40: 3.0 kΩ
Thermistor for
lower temperature
1
273+t 1
273
8-1-1. Thermistor
Notes
· High voltage is applied to the connecter (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 board and fan motor.)
Self check
Conditions : The indoor fan cannot rotate.
Check method of indoor fan motor (fan motor/indoor controller board)
1
2
Indoor controller board fuse check
Wiring contact check
Contact of fan motor connector (CNMF)
No
No
Fail
Power supply check (Remove the connector (CNMF))
Measure the voltage in the indoor controller circuit board.
TEST POINT 1: VDC (between 1 (+) and 4 (−) of the fan connector): VDC 310–340 V DC
TEST POINT 2: VCC (between 5 (+) and 4 (−) of the fan connector): VCC 15 V DC
Wiring recovery
Replace the drain pump.
Replace the indoor controller board.
Replace the fan motor.
Replace the indoor
controller board
Replace the fan motor.
Is the voltage normal?
Is there contact failure?
No
Yes
Yes
No
Yes
Check the operation of fan. END
Fail
OK
END
OK
Check the operation.
Is the fuse normal?
Yes
Is the resistance
between the terminals of
drain pump normal?
Replace the fan motor.
Replace the indoor controller board.
8-1-2. DC an motor (fan motor/indoor controller board)
OCH586

19
Switch Function Remarks
Effective
timing
Under
suspension
Under
suspension
Before
power
supply
ON
Before
power
supply
ON
<Initial setting>
ON
OFF 1 2 3 4 5 6 7 8 9
10
Address board
Operation by switch
ON OFF
*1 Fan operation at Heating mode
*2 Thermo ON operation at Heating mode
Pole
Built-in remote controller
Provided
2,500 hr
Effective
Always operated while the heat in ON *
1
Low *3
Setting air flow *3
Effective
Effective
Filter clogging detection
Filter cleaning
Fresh air intake
Humidifier control
Airflow set in case of
thermo OFF
at heating mode
Auto restart function
Power ON/OFF by breaker
Indoor unit
Not provided
100 hr
Not effective
Operated depends on the condition *2
Extra low *3
Depends on SW1-7
Not effective
Not effective
Cooling only
Available
Available
Available
Second setting *4
Third setting *4
Not effective
Heat pump/Cooling only
Louver/humidifier *5
Vane
Vane swing function in heating
(wave-flow)
Vane horizontal angle 1
Vane horizontal angle 2
Sensible temperature correction
Heat pump
Not available
Not available
Not available
First setting *4
Depends on SW3-5
Effective
1
5
6
10
1
2
3
4
5
6
7
8
9
10
SW2
Capacity
code
setting 1–6
1–5
SW3
Function
setting
Thermistor <Room temperature
detection> position
<Initial setting>
ON
OFF 1 2 3 4 5 6 7 8 9
10
Indoor controller board
Indoor controller board
<Initial setting>
Set while the unit is off.
Set while the unit is off.
Set for each capacity.
Indoor controller board
ON
OFF 1 2 3 4 5
SW1
Function
setting
SW4
Model
Selection
(Setting
for
PLFY
series)
Switching remote display Thermo ON signal display Indicating fan operation
ON/OFF
When replacing the indoor controller board, make sure to set the switch to the
initial setting, which is shown below.
SW1-7
OFF
ON
OFF
ON
OFF Extra low
Low
Setting air flow
Stop
OFF
ON
ON
SW1-8
*3 Refer to the <Table A> below.
*4 Refer to the <Table B> below.
*5 SW3-2 setting. Only for PLFY-P·VBM, SW is used to change whether the humidifier functions or not. (Fixed the louver function less.)
2
3
4
7
8
9
─ ─ ─
─ ─ ─
─ ─ ─
SW3-5
<Table A>
SW3-6 Vane setting Initial setting
●
Setting Vane position
OFF OFF Set up 1Standard Standard
ON OFF Set up 2Less draft * Upward position than the standard
OFF ON Set up 3Less smudging Downward position than the standard
ON ON unused — —
* Be careful of smudge on ceiling.
<Table B>
ON
OFF 123456
ON
OFF 123456
ON
OFF 123456
WP32
Capacity SW2
WP40
WP50
8-2. FUNCTION OF DIP SWITCH The black square (■) indicates a switch position.
OCH586

20 21
Continue to the next page
0
5
9
4
8
3
7
2
6
1
0
5
9
4
8
3
7
2
6
1
0
5
9
4
8
3
7
2
6
1
0
5
9
4
8
3
7
2
6
1
0
8
F
7
E
6
D
5
C
4
B
3
A
2
9
1
0
8
F
7
E
6
D
5
C
4
B
3
A
2
9
1
Switch
SWA
Ceiling
height
selector
SWC
Option
selector
Rotary switchRotary switch
Pole
(High ceiling)
(Standard)
(Silent)
3
2
1
1–3
2
Operation by switch
Ceiling height can be changed depends on
SWB setting.
When attaching the optional high performance
filter elements (multi function casement) to
the unit, be sure to attach it to in order to
prevent the airflow reducing.
Remarks
<Initial setting>
Address board
<Initial setting>
Address board
Address board
<Initial setting>
Address board
3
2
1
SW12
10
SW11
1
SW12 SW11
SW14
SW14
<Initial setting>
Effective
timing
Before
power
supply
ON
Under
operation
or
suspension
1
Silent
2.5m
2.7m
3.0m
2
Standard
2.7m
3.0m
3.3m
3
High ceiling
3.5m
3.5m
3.5m
4 direction
3 direction
2 direction
SWA
SWB
PLFY-WP32/40/50VBM-E
4
3
2
2
12
1
SW11
1s digit
address
setting
SW12
10s digit
address
setting
SW14
Branch
No.
Setting
How to set addresses
Example : If address is "3", remain SW12
(for over 10) at "0", and match SW11 (for 1 to 9)
with "3".
How to set branch numbers SW14 (Series R2 only)
Match the indoor unit’s refrigerant pipe with
the BC controller’s end connection number.
Remain other than series R2 at "0".
2
OCH586