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