Mitsubishi Electric City Multi PMFY Series Operating manual

TECHNICAL & SERVICE MANUAL
Indoor unit
[Model names] [Service Ref.]
No. OC307
REVISED EDITION-F
INDOOR UNIT
CONTENTS
1. TECHNICAL CHANGES.....................2
2. SAFETY PRECAUTION .....................3
3. PART NAMES AND FUNCTIONS......5
4. SPECIFICATIONS ............................12
5. OUTLINES AND DIMENSIONS .......16
6. WIRING DIAGRAM...........................17
7. REFRIGERANT SYSTEM DIAGRAM.... 21
8. TROUBLESHOOTING......................22
9. DISASSEMBLY PROCEDURE.........32
10. SERVICE PARTS LIST.....................36
Ceiling Cassettes
Series PMFY
R410A
March 2019
Revision:
• Some descriptions have
been modified in REVISED
EDITION-F.
OC307 REVISED
EDITION-E is void.
PMFY-P20VBM-E
PMFY-P25VBM-E
PMFY-P32VBM-E
PMFY-P40VBM-E
PMFY-P20VBM-E
PMFY-P20VBM-E#2
PMFY-P20VBM-ER4
PMFY-P25VBM-E
PMFY-P25VBM-E#2
PMFY-P25VBM-ER4
PMFY-P32VBM-E
PMFY-P32VBM-E#2
PMFY-P32VBM-ER4
PMFY-P40VBM-E
PMFY-P40VBM-E#2
PMFY-P40VBM-ER4
PMFY-P20VBM-E1
PMFY-P20VBM-ER3
PMFY-P25VBM-E1
PMFY-P25VBM-ER3
PMFY-P32VBM-E1
PMFY-P32VBM-ER3
PMFY-P40VBM-E1
PMFY-P40VBM-ER3
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

2 3
OC307F
1TECHNICAL CHANGES
PMFY-P20VBM-E PMFY-P20VBM-E1
PMFY-P25VBM-E PMFY-P25VBM-E1
PMFY-P32VBM-E PMFY-P32VBM-E1
PMFY-P40VBM-E PMFY-P40VBM-E1
1. FAN MOTOR (MF) has been changed.
2. CONTROLLER BOARD (I.B) has been changed.
PMFY-P20VBM-E1PMFY-P20VBM-E#2
PMFY-P25VBM-E1PMFY-P25VBM-E#2
PMFY-P32VBM-E1PMFY-P32VBM-E#2
PMFY-P40VBM-E1PMFY-P40VBM-E#2
1. CONTROLLER BOARD (I.B) has been changed.
2. PANEL has been changed.
PMP-40BM → PMP-40BMW
(White : 0.98Y 8.99/0.63) (Pure white : 6.4Y 8.9/0.4)
3. FAN MOTOR (MF) has been changed.
4. THERMISTOR (TH22, TH23) have been changed.
PMFY-P20VBM-E#2 PMFY-P20VBM-ER3
PMFY-P25VBM-E#2 PMFY-P25VBM-ER3
PMFY-P32VBM-E#2 PMFY-P32VBM-ER3
PMFY-P40VBM-E#2 PMFY-P40VBM-ER3
1. DRAIN PIPE has been changed.
2. JOINT SOCKET (FOR DRAIN PIPE) has been added.
PMFY-P20VBM-ER3 PMFY-P20VBM-ER4
PMFY-P25VBM-ER3 PMFY-P25VBM-ER4
PMFY-P32VBM-ER3 PMFY-P32VBM-ER4
PMFY-P40VBM-ER3 PMFY-P40VBM-ER4
1. INDOOR CONTROLLER BOARD has been changed. (S/W version up)

3
OC307F
Cautions for units utilizing refrigerant R410A
Charge refrigerant from liquid phase of gas
cylinder.
If the refrigerant is charged from gas phase, composition
change may occur in refrigerant and the efficiency will be
lowered.
Do not use refrigerant other than R410A.
If other refrigerant (R22 etc.) is used, chlorine in refrige-
rant can cause deterioration of refrigerant oil etc.
Use a vacuum pump with a reverse flow check
valve.
Vacuum pump oil may flow back into refrigerant cycle and
that can cause deterioration of refrigerant oil etc.
Use the following tools specifically designed for
use with R410A refrigerant.
The following tools are necessary to use R410A refrigerant.
Handle tools with care.
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigera-
nt will change and the efficiency will be lowered.
Flare tool
Electronic refrigerant
charging scale
Vacuum pump adaptor
Size adjustment gauge
Gauge manifold
Torque wrench
Gas leak detector
Charge hose
Tools for R410A
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
If large amount of mineral oil enters, that can cause deterio-
ration of refrigerant oil etc.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
Use new refrigerant pipes.
In case of using the existing pipes for R22, be careful with
the followings.
· Change flare nut to the one provided with this product.
Use a newly flared pipe.
· Avoid using thin pipes.
Contamination inside refrigerant piping can cause deterio-
ration of refrigerant oil etc.
Make sure that the inside and outside of refrige-
rant 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.
Store the piping indoors, and both ends of the
piping sealed until just before brazing.
(Leave elbow joints, etc. in their packaging.)
The refrigerant oil applied to flare and flange
connections must be ester oil, ether oil or
alkylbenzene oil in a small amount.
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.
Use the specified refrigerant only.
2SAFETY PRECAUTION

54 5
OC307F
[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.
[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.)
Gravimeter
Unit
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No. Tool name Specifications
1Gauge manifold · Only for R410A
· Use the existing fitting specifications. (UNF1/2)
· Use high-tension side pressure of 5.3MPa·G or over.
2Charge hose · Only for R410A
· Use pressure performance of 5.09MPa·G or over.
3Electronic scale —
4Gas leak detector · Use the detector for R134a, R407C or R410A.
5Adapter for reverse flow check · Attach on vacuum pump.
6Refrigerant charge base —
7Refrigerant cylinder · Only for R410A · Top of cylinder (Pink)
· Cylinder with syphon
8Refrigerant recovery equipment —

5
OC307F 5
3PART NAMES AND FUNCTIONS
3-1. Indoor Unit
Guide vane
Air flow can be changed to horizontal
by moving the Guide vane to the left or right.
Air intake
Returns air from room.
Filters
Remove dust and pollutants
from return air.
Auto Air Swing Vane
Disperses airflow up and
down and adjusts the angle
of airflow direction.
Horizontal Air Outlet

6 7
OC307F
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
3-2. WIRED REMOTE CONTROLLER <PAR-30MAA/PAR-31MAA>
* The functions which can be used are restricted according to the model. : Supported : Unsupported
Function PAR-30MAA/PAR-31MAA PAR-21MAA
Slim CITY MULTI
Body Product size H × W × D (mm) 120 × 120 × 19 120 × 130 × 19
LCD Full Dot LCD Partial Dot LCD
Backlight
Energy-saving Energy-saving operation schedule
Automatic return to the preset temperature
Restriction Setting the temperature range restriction
Function Operation lock function
Weekly timer
On / Off timer
High Power
Manual vane angle
Wired remote controller function

7
OC307F
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 factory 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.
Indicates 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.

8 9
OC307F
Not all functions are available on all models of indoor units.
Filter information
Error information
Energy saving
Auto return
Schedule
Night setback
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
Weekly timer
Restriction
Maintenance
Initial setting
On / Off timer
Auto-Off timer
Temp. range
Operation lock
Manual vane angle
Main / Sub
Timer
Main display
Contrast
Display details
Auto mode
Administrator password
Language selection
Service
Service menu
Input maintenance info.
Function setting
Lossnay (CITY MULTI only)
Check
Self check
Maintenance password
Remote controller check
Test run
Clock
Drain pump test run
Auto descending panel
Menu structure

9
OC307F
Setting and display items Setting details
Vane · Louver · Vent.
(Lossnay) Use to set the vane angle. • Select a desired vane setting from ve 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lterstatus.
• The lter 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specied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 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.
Restriction 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
Auto descending panel (Optional parts) Up / Down you can do.
Manual
vane angle Usetosetthevaneangleforeachvanetoaxedposition.
Initial setting Main/Sub When connecting two remote controllers, one of them needs to be designated as a sub
controller.
Clock Use to set the current time.
Main display Use to switch between "Full" and "Basic" modes for the Main display.
• The default setting is "Full."
Contrast Use to adjust screen contrast.
Main menu list

10 11
OC307F
Setting and display items Setting details
Initial setting Display
details Make the settings for the remote controller related items as necessary. Clock: The factory 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 OnlyAuto display.
Auto mode 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
password
The administrator password is required to make the settings for the following items.
• Timer setting • Energy-save setting • Weekly timer setting
• Restriction setting • Outdoor unit silent mode setting • Night set back
Language
selection Use to select the desired language.
Service Test run Select "Test run" from the Service menu to bring up the Test run menu.
• Test run • Drain pump test run
Input
maintenance Select "Input maintenance Info." from the Service menu to bring up the Maintenance information screen.
The following settings can be made from the Maintenance Information screen.
• Model name input • Serial No. input • Dealer information input
Function
setting Make the settings for the indoor unit functions via the remote controller as necessary.
LOSSNAY
setting
(CITY MULTI
only)
This setting is required only when the operation of CITY MULTI units is interlocked with
LOSSNAY units.
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
password Take the following steps to change the maintenance password.
Remote
controller
check
When the remote controller does not work properly, use the remote controller checking
function to troublushoot the problem.

11
OC307F
°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 purposes of this 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
Displayed 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 - 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
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 one hour,
at which time the airflow direction
also changes.
3-3. WIRED REMOTE CONTROLLER <PAR-21MAA>

1312 13
OC307F
4SPECIFICATIONS
4-1. SPECIFICATION
Note 1. Rating conditions (JIS B 8615-1)
Cooling: Indoor: D.B. 27°C W.B. 19°C
outdoor: D.B. 35°C
Heating: Indoor: D.B. 20°C
outdoor: D.B. 7°C W.B. 6°C
Note 2. The number indicated in < > is for the grille.
*3. Air flow and the noise level are indicated as High – Medium1 – Medium2 – Low.
Item
V·Hz
kW
kW
kW
kW
A
A
—
mm
mm
mm
—
—
k/min
Pa
kW
—
—
[mm(in.)
[mm(in.)
[mm
dB
kg
Cooling capacity
Power
Heat exchanger
Insulator
Air filter
Fan × No
Air flow *3
Pipe
dimensions
Field drain pipe size
Noise level *3
Product weight
Exterior
(munsell symbol)
Fan motor
output
External
static pressure
Liquid
side
Gas
side
Heating capacity
Dimensions
Height
Width
Depth
Electric characteristic
Input
Cooling
Heating
Cooling
Heating
Current
PMFY-P20VBM-E
PMFY-P20VBM-E1
PMFY-P20VBM-E#2
PMFY-P20VBM-ER3
PMFY-P20VBM-ER4
PMFY-P25VBM-E
PMFY-P25VBM-E1
PMFY-P25VBM-E#2
PMFY-P25VBM-ER3
PMFY-P25VBM-ER4
PMFY-P32VBM-E
PMFY-P32VBM-E1
PMFY-P32VBM-E#2
PMFY-P32VBM-ER3
PMFY-P32VBM-ER4
PMFY-P40VBM-E
PMFY-P40VBM-E1
PMFY-P40VBM-E#2
PMFY-P40VBM-ER3
PMFY-P40VBM-ER4
Single phase 220V-230V-240V 50Hz / 220V 60Hz
2.2
2.5
0.042
0.042
0.20
0.20
2.8
3.2
0.044
0.044
0.21
0.21
3.6
4.0
0.044
0.044
0.21
0.21
4.5
5.0
0.054
0.054
0.26
0.26
9.3 - 8.6 - 8.0 - 7.3
37 - 36 - 34 - 32
8.7 - 8.0 - 7.2 - 6.5
35 - 33 - 30 - 27
10.7 - 9.7 - 8.7 - 7.7
39 - 37 - 35 - 33
Unit : Galvanized sheets · Standard grilles : ABS resin acrylic coating
Munsell <0.98Y 8.99/0.63> (PMFY-P·VBM-E(1)) / <6.4Y 8.9/0.4> (PMFY-P·VBM-E#2/ER3/ER4)
230<30>
812<1,000>
395<470>
Cross fin
Line flow fan × 1
0
0.028
Polyethylene sheet
PP honey comb fabric
12.7(1/2")
6.35(1/4")
O.D.26 (PVC pipe VP-20 connectable)
14<3.0>
F a n

13
OC307F 13
4-2. ELECTRIC PARTS SPECIFICATIONS
Parts name
Service ref.
Symbol
TH21
TH22
TH23
FUSE
MF
MV
DP
DS
LEV
TB2
TB5
TB15
Resistance 0:/15k", 10:/9.6k", 20:/6.3k", 25:/5.4k", 30:/4.3k", 40:/3.0k"
Resistance 0:/15k", 10:/9.6k", 20:/6.3k", 25:/5.4k", 30:/4.3k", 40:/3.0k"
Resistance 0:/15k", 10:/9.6k", 20:/6.3k", 25:/5.4k", 30:/4.3k", 40:/3.0k"
250V 6.3A
Thermistor resistance 0:/6k", 10:/3.9k", 20:/2.6k", 25:/2.2k", 30:/1.8k", 40:/1.3k"
(L, N, ;) 330V 30A
(M1, M2, S) 250V 20A
(1,2) 250V 10A
Liquid pipe thermistor
Gas pipe thermistor
Drain pump
Drain sensor
Linear expansion valve
PMFY-P20VBM-E
PMFY-P20VBM-E1
PMFY-P20VBM-E#2
PMFY-P20VBM-ER3
PMFY-P20VBM-ER4
PMFY-P25VBM-E
PMFY-P25VBM-E1
PMFY-P25VBM-E#2
PMFY-P25VBM-ER3
PMFY-P25VBM-ER4
PMFY-P32VBM-E
PMFY-P32VBM-E1
PMFY-P32VBM-E#2
PMFY-P32VBM-ER3
PMFY-P32VBM-ER4
PMFY-P40VBM-E
PMFY-P40VBM-E1
PMFY-P40VBM-E#2
PMFY-P40VBM-ER3
PMFY-P40VBM-ER4
Room temperature
thermistor
Fuse
(Indoor controller board)
Fan motor
Vane motor
Power supply
terminal block
Transmission
terminal block
DC Brushless Motor
8-pole OUTPUT 28W
PN0H28-MB
MSFJC 20M23
12V/380
"
PJV-1046
220-240V 50/60Hz
DC12V Stepping motor drive, Port dimension [3.2
(0~2000pulse)
MA-remote controller
terminal block

14 15
OC307F
4-3. AIR CAPACITY TAKEN FROM OUTSIDE
PMFY-P·VBM-E series enables to take fresh air from outside. When taking fresh air, the duct fan is used.
The air capacity should be 20% or less of the air flow SPEC(Hi).
50.0
-50.0
-100.0
0.0 0.5 1.0
Air flow (m3/min)
2 intakes
1 intake
Characteristic diagram of fresh air taken capacity
Static pressure (Pa)
1.5 2.0 2.5
0.0
PMFY-P20VBM-E
PMFY-P20VBM-E1
PMFY-P20VBM-E#2
PMFY-P25VBM-E
PMFY-P25VBM-E1
PMFY-P25VBM-E#2
PMFY-P32VBM-E
PMFY-P32VBM-E1
PMFY-P32VBM-E#2
PMFY-P40VBM-E
PMFY-P40VBM-E1
PMFY-P40VBM-E#2
8.7m³/min
9.3m³/min
9.3m³/min
10.7m³/min
Max 1.74m³/min
Max 1.86m³/min
Max 1.86m³/min
Max 2.14m³/min
Air flow (Hi) Air capacity from outsideService Ref.
PMFY-P20VBM-ER3
PMFY-P20VBM-ER4
PMFY-P25VBM-ER3
PMFY-P25VBM-ER4
PMFY-P32VBM-ER3
PMFY-P32VBM-ER4
PMFY-P40VBM-ER3
PMFY-P40VBM-ER4
(Knockout)
4-{2.8
Fresh air intake hole (Knockout)
Fresh air intake hole
90-
{122
{100
108
250 288.5
Unit : mm
Installation at site
1
~
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.
CN51
on
indoor unit
board Red
Brown
MB
Q
0
BA
C
1
2
3
Curve in the
right graphs
Duct characteristics
at site
Q
A
E C
Q
Qa
A D
Operation in conjunction with duct fan (Booster fan)
●Whenever the indoor unit is operating, the duct fun
operates.
(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 12V DC relay
between the Yellow and Orange connector lines.
( *) Use a relay of 1W or smaller.
MB: Electromagnetic switch power relay for duct fan.
X: Auxiliary relay (12V DC LY-1F)
How to read curves
Q…Designed amount of fresh air intake
<m3/min>
A…Static pressure loss of fresh air
intake duct system with air flow
amount Q <Pa>
B…Forced static pressure at air condi-
tioner inlet with air flow amount Q
<Pa>
C…Static pressure of booster fan with
air flow amount Q <Pa>
D…Static pressure loss increase amount
of fresh air intake duct system for air
flow amount Q <Pa>
E…Static pressure of indoor unit with air
flow amount Q <Pa>
Qa…Estimated amount of fresh air
intake without D <m3/min>

15
OC307F
4-4. NOISE CRITERION CURVES
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE THRESHOLD OF HEARING
FOR CONTINUOUS NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
PMFY-P20VBM-E
PMFY-P20VBM-E1
PMFY-P20VBM-E#2
PMFY-P20VBM-ER3
PMFY-P20VBM-ER4
High
NOTCH
Medium1
Medium2
Low
35
SPL(dB)
33
30
27
LINE
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
µbar)
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
PMFY-P25/32VBM-E
PMFY-P25/32VBM-E1
PMFY-P25/32VBM-E#2
PMFY-P25/32VBM-ER3
PMFY-P25/32VBM-ER4
High
NOTCH
Medium1
Medium2
Low
37
SPL(dB)
36
34
32
LINE
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
µbar)
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
PMFY-P40VBM-E
PMFY-P40VBM-E1
PMFY-P40VBM-E#2
PMFY-P40VBM-ER3
PMFY-P40VBM-ER4
High
NOTCH
Medium1
Medium2
Low
39
SPL(dB)
37
35
33
LINE
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
µbar)
UNIT
1.5m
MICROPHONE
CEILING

16 17
OC307F
5OUTLINES AND DIMENSIONS
Details of fresh air intake hole
Knockout
4-{2.8 Burring hole
Fresh air intake hole
110
230
235 or more
110
Suspension bolt(M10 or W 3/8)
Panel(grille)
Installation space required around indoor unit
mounting plate
176
Panel(grille)
Lower view
60 40
177580243
Top
Air outlet(lower)
46
43
2828
20 26
20
53
69 247
30
Right side
Outer line of grille
Center of unit
75926 811 suspension bolt pitch74.5 960ceiling opening20 20
1000outer side of grille
17.517.5
45
340 Suspension bolt pitch
45
430 Ceiling opening
470 Outer side of grille
20 20
74.5
Terminal block for power supply
Terminal block for transmission
812
96
Left side
Front drain pan
Electrical box
Drainage pipe PVC pipe:VP-20[I.D.{26]
Refrigerant pipe(gas) O.D.{12.7
Refrigerant pipe(liquid) O.D.{6.35
Ceiling panel
Drain pan
Ceiling panel
O.D.{12.7(1/2") PVC pipe:VP-20[O.D.{26(1")] O.D.{6.35(1/4") O.D.{43
Drainage pipingGas pipe
Liquid pipe Pipe cover
Refrigerant piping
1000 outer side of grille
470
outer side of grille
{50
(56)
230
(96)
(20)
(10)
302
254
198
141 759
395
90-
{
122
{
100
108
250 288.5
Same line
Terminal block for MA remote controller
Unit : mm
PMFY-P20VBM-E PMFY-P25VBM-E PMFY-P32VBM-E PMFY-P40VBM-E
PMFY-P20VBM-E1PMFY-P25VBM-E1PMFY-P32VBM-E1 PMFY-P40VBM-E1
PMFY-P20VBM-E#2 PMFY-P25VBM-E#2 PMFY-P32VBM-E#2 PMFY-P40VBM-E#2
PMFY-P20VBM-ER3 PMFY-P25VBM-ER3 PMFY-P32VBM-ER3 PMFY-P40VBM-ER3
PMFY-P20VBM-ER4 PMFY-P25VBM-ER4 PMFY-P32VBM-ER4 PMFY-P40VBM-ER4

17
OC307F
WIRING DIAGRAM
6
PMFY-P20VBM-E PMFY-P25VBM-E PMFY-P32VBM-E PMFY-P40VBM-E
NAME
NAME
SYMBOL
I.B
SYMBOL
MF
MV
DP
DS
TB2
TB5
TB15
TH21
TH22
TH23
LEV
POWER SUPPLY
TRANSMISSION
MA-REMOTE CONTROLLER
ROOM TEMPERATURE DETECTION
(0:/15k", 25:/5.4k")
PIPE TEMPERATURE DETECTION/LIQUID
(0:/15k", 25:/5.4k")
PIPE TEMPERATURE DETECTION/GAS
(0:/15k", 25:/5.4k")
FAN MOTOR
VANE MOTOR
DRAIN PUMP
DRAIN SENSOR
TERMINAL
BLOCK
THERMISTOR
LINEAR EXPANSION VALVE
A.B
CN25
CN27
CN32
CN41
CN51
CN52
SW2
SW3
SW4
ZNR
FUSE
X1
T
LED1
LED2
SW1
SW5
SW11
SW12
SW14
HUMIDIFIER
DAMPER
REMOTE SWITCH
HA TERMINAL-A
CENTRALLY CONTROL
REMOTE INDICATION
CAPACITY CODE
MODE SELECTION
MODEL SELECTION
DRAIN PUMP
MODE SELECTION
VOLTAGE SELECTION
ADDRESS SETTING 1s DIGIT
ADDRESS SETTING 10ths DIGIT
BRANCH NO.
INDOOR CONTROLLER BOARD
CONNECTOR
SWITCH
VARISTOR
FUSE(6.3A/250V)
AUX.RELAY
TRANSFORMER
POWER SUPPLY(I.B)
POWER SUPPLY(I.B)
CIRCUIT BOARD
SWITCH
[ LEGEND ]
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 wire is non-polar.)
4. Symbol [S] of TB5 is the shield wire connection.
5. Symbols used in wiring diagram above are, : terminal block, : connector.
6.The setting of the SW2 dip switches differs in the capacity. For the detail, refer to the table above.
7. Please set the switch SW5 according to the power supply voltage. Set SW5 to 240V side when the power supply is 230 and 240 volts.
When the power supply is 220 volts, set SW5 to 220V side.
CN32
I.B
TH23
TH21
CN21
(WHT)
LIQUID
CN29
(BLK)
GAS
CN20
(RED)
INTAKE
TH22
CN31
(WHT)
DRAIN
6
4
DS
(SHIELD) M1 M2
TB5
TO OUTDOOR UNIT
BC CONTROLLER
DC24-30V
CN2M
(BLU)
M-NET
REMOTE CONTROLLER
5
FUSE
MV
LEV
MF
PULL BOX
1
5
1
5
CN51
(WHT)
CENTRALLY
CONTROL
1
HA
CN41
(WHT)
(RED)
ADDRESS
CN81CN42
ADDRESS
(RED)
(WHT)
REMOTE
31
CN27
CN25
0FF
65432 109876543211 1
0N
2345
ZNR
X1
(RED)
CND
(YLW)
CNP
0FF
0N SW2 SW3 SW4
DP
SWC
(RED)
ADDRESS
CN43
(RED)
ADDRESS
CN82
A.B
BRANCH
SW14
10ths
DIGIT 1s DIGIT
SW11SW12
TB2 L
CN60
(WHT)
LEV
CN6V
(GRN)
VANE
RED
BLU
BLU
BLU
BLU
BRN
ORN
YLW
RED
WHT
BRN
RED
ORN
YLW
GRN
(WHT)
FAN
POWER
D.U.M
4
8
123456789 10
SW1
*See fig:W1
No.
240V
SW5
220V
CN52
(GRN)
REMOTE
INDICATION
SWITCH
RED BLU
BLU BLU
N
GRN/YLW
INDOOR UNIT
TO NEXT
(15A) (15A)
BREAKERFUSE
~/N 220-230-240V 50Hz
220V 60Hz
POWER SUPPLY
0N
0FF 654321
0N
0FF 654321
0N
0FF 654321
123456
0FF
0N
LED1
LED2
PE
123456
0FF
0N
123456
0FF
0N
123456
0FF
0N
0N
0FF 654321
10987
10987
10987
10987
3
1
1
3
431 2 21 3 4 5 6 7 8
1
2
2
1
5
4
3
2
1
1
2
3
4
5
6
6
5
4
3
2
1
1
2
1
2
1
2
1
2
3
21
21 3 654
1
2
3
4
1
2
3
4
5
6
7
8
<W1>
P20VBM
SW2
MODELS
P25VBM
P32VBM
P40VBM
SW3
X1
T
000
12
TB15
CN3A
(BLU)
REMOCON
21
TO MA-REMOTE CONTROLLER
DC8.7-13V
ORN ORN
Mark
LED1
LED2
Meaning
Main power supply
Function
Power supply for
MA-Remote controller
LED on indoor board for service
Main power supply(Indoor unit:220-240V)
power on Lamp is lit.
Power supply for MA-Remote controller
on Lamp is lit.
The black square ( ■ ) indicates a switch position.

18 19
OC307F
FAN
(WHT)
LED1
LED2
CN2M
(BLU)
M-NET
BLU BLU
TB5
TB2
PULL BOX
FUSE
(15A)
BREAKER
(15A)
(SHIELD)
TO OUTDOOR UNIT
BC CONTROLLER
REMOTE CONTROLLER
DC24-30V
CN3A
(BLU)
REMOCON
ORN ORN
TB15
TO MA- REMOTE CONTROLLER
DC8.7-13V
POWER SUPPLY
~ / N
220-240V 50Hz
220V 60Hz
TO NEXT
INDOOR UNIT
CN29
(BLK)
GAS
CN21
(WHT)
LIQUID
CN20
(RED)
INTAKE
CN60
(WHT)
LEV
CN52
(GRN)
REMOTE
INDICATION
CN6V
(GRN)
VANE
CN31
(WHT)
DRAIN
CN25
CN27
12345678910
SW3
123456
SW2
12345
SW4
ON
OFF ON
OFF
(RED)
ADDRESS
CN81
(RED)
ADDRESS
CN42
(WHT)
REMOTE
SWITCH
CN32
M
1~
DP X1
CNP
(YLW)
D.U.M
CND
(RED)
POWER
FUSE
T
RED
BLU
BLU
BLU BRN
RED
ORN
YLW
GRN
BLU
BRN
ORN
YLW
RED
WHT
CN51
(WHT)
CENTRALLY
CONTROL
1
5
RED
BLU
GRN / YLW
*See fig :w1
8
4
SW14
SWC
BRANCH
No.
SW11
1s
DIGIT
SW12
10ths
DIGIT
12345678910
SW1
SW5 240V220V
(RED)
ADDRESS
CN82
(RED)
ADDRESS
CN43
A.B
I.B
MODELS
P20VBM
SW2
123456
ON
OFF
P25VBM
123456
ON
OFF
P32VBM
123456
ON
OFF
P40VBM
123456
ON
OFF
SW3
1234567
ON
OFF
1234567
ON
OFF
123456
ON
OFF
123456
7
7
8
8
8
8
9
9
9
9
10
10
10
10
ON
OFF
<w1>
[LEGEND]
SYMBOL NAME
I.B INDOOR CONTROLLER BOARD
CN25
CN27
CN32
CN51
CN52
SW2
SW3
SW4
CONNECTOR HUMIDIFIER
DAMPER
REMOTE SWITCH
CENTRALLY CONTROL
REMOTE INDICATION
SWITCH CAPACITY CODE
MODE SELECTION
MODEL SELECTOR
ZNR VARISTOR
X1 AUX.RELAY DRAIN PUMP
FUSE FUSE (6.3A / 250V)
LED1 POWER SUPPLY(I.B)
LED2 POWER SUPPLY(I.B)
T TRANSFORMER
SYMBOL NAME
TH21
DS
MF
MV
DP
THERMISTOR
ROOM TEMP. DETECTION
(0:/15k" , 25:/5.4k" )
PIPE TEMP. DETECTION / LIQUID
(0:/15k"
, 25:/5.4k" )
PIPE TEMP. DETECTION / GAS
(0:/15k"
, 25:/5.4k" )
TH22
TH23
DRAIN SENSOR
FAN MOTOR
VANE MOTOR
DRAIN PUMP
TB2
TB5
TB15 TRANSMISSION MA-REMOTE CONTROLLER
TERMINAL
BLOCK POWER SUPPLY
A.B CIRCUIT BOARD
SW1
SW5
SW11
SW12
MODE SELECTION
VOLTAGE SELECTION
ADDRESS SETTING 1s DIGIT
ADDRESS SETTING 10ths DIGIT
SW14 BRANCH No.
SWITCH
LEV LINEAR EXPANSION VALVE
MF
1
6 3
MS
3~
L N
M1 M2
S
12 13
1 2
3
1
2
1
2
1
DS
TH23
TH22
2
1
6
1
TH21
t°
LEV
t°
t°
t°
M
MV
6
1
1
51
5
2
1
2
1
M
843 11 1
8
1
4
1
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
1
3
3
1U
The black square ( ■ ) indicates a
switch position.
Mark Meaning Function
Power supply for
MA-Remote controller
Main power supply (Indoor unit:220-240V)
Power on Lamp is lit.
LED on indoor board for service
LED1 Main power supply
Power supply for MA-Remote controller
on Lamp is lit.
LED2
2
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 controllerwire is non-polar.)
3. In case of using M-NET, please connect to TB5. (Transmission wire is non-polar.)
4. Symbol [S] of TB5 is the shield wire connection.
5. Symbols used in wiring diagram above are, :terminal block, :connector.
6. The setting of the SW2 dip switches differs in the capacity. For the detail, refer to
the table above.
7. Please set the switch SW5 according to the power supply voltage. Set SW5 to
240V side when the power supply is 230 and 240 volts. When the power supply is
220 volts, set SW5 to 220V side.
PMFY-P20VBM-E1PMFY-P25VBM-E1PMFY-P32VBM-E1PMFY-P40VBM-E1

19
OC307F
MODELS
P20VBM
SW2
123456
ON
OFF
P25VBM
123456
ON
OFF
P32VBM
123456
ON
OFF
P40VBM
123456
ON
OFF
SW3
1234567
ON
OFF
1234567
ON
OFF
123456
ON
OFF
123456
7
7
8
8
8
8
9
9
9
9
10
10
10
10
ON
OFF
<W1>
[LEGEND]
SYMBOL NAME
I.B INDOOR CONTROLLER BOARD
CN25
CN27
CN32
CN51
CN52
SW2
SW3
SW4
SWE
CONNECTOR HUMIDIFIER
DAMPER
REMOTE SWITCH
A.B CIRCUIT BOARD
SW1
SW5
SW11
SW12
MODE SELECTION
VOLTAGE SELECTION
ADDRESS SETTING 1s DIGIT
ADDRESS SETTING 10ths DIGIT
SW14 BRANCH No.
CENTRALLY CONTROL
REMOTE INDICATION
SWITCH
SWITCH
CAPACITY CORD
MODE SELECTION
MODEL SELECTOR
ZNR VARISTOR
DRAIN UP MACHINE ( TEST MODE )
X1 AUX.RELAY
FUSE FUSE (T6.3AL 250V)
LED1 POWER SUPPLY (I.B)
LED2 POWER SUPPLY (I.B)
SYMBOL NAME
TH21
DS
MF
MV
DP
THERMISTOR ROOM TEMP. DETECTION
(0°C/15kΩ, 25°C/5.4kΩ)
PIPE TEMP. DETECTION / LIQUID
(0°C/15kΩ, 25°C/5.4kΩ)
PIPE TEMP. DETECTION / GAS
(0°C/15kΩ, 25°C/5.4kΩ)
LEV LINEAR EXPANSION VALVE
TH22
TH23
DRAIN SENSOR
FAN MOTOR
VANE MOTOR
DRAIN PUMP
DRAIN PUMP
TB2
TB5
TB15 TRANSMISSION MA-REMOTE CONTROLLER
TERMINAL
BLOCK POWER SUPPLY
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 the table below.
7.Please set the switch SW5 according to the power supply voltage.
Set SW5 to 240V side when the power supply is 230 and 240 volts.
When the power supply is 220 volts, set SW5 to 220V side.
Mark Meaning Function
Power supply for
MA-Remote controller
Main power supply (Indoor unit:220-240V)
Power on → Iamp is lit
LED on indoor board for service
LED1 Main power supply
Power supply for MA-Remote controller
on → Iamp is lit
LED2
SWE
ON OFF
CN2M
( BLU )
M-NET
CN3A
( BLU )
REMOCON
TB5
(SHIELD)
M1 M2 TB2
TB15
1S
TH23
TH22
CN20
( RED )
INTAKE
CN60
( WHT )
LEV
CN52
( GRN )
REMOTE
INDICATION
CN6V1
( GRN )
VANE
TH21
CNMF2
( WHT )CNMF1
( WHT )
CN31
( WHT )
DRAIN
CN44
( WHT )
LIQUID
/ GAS
CN25
( WHT )
CN27
( RED )
ADDRESS
CN81 ( RED )
CN42
( RED )
ADDRESS
CN32 ( WHT )
REMOTE SWITCH
X1
CNP
( YLW )
D.U.M
CND
( BLK )
FUSE
DSA ZNR01 DC311
~ 339V
ZNR02U
CN51
( WHT )
CENTRALLY
CONTROL
CN41
( WHT )
HA
48
5
5
LEV
M
DS
DP
t°
t°
t°
t°
2L N
12345678910
SW3
123456
SW2
12345
SW4 81
51
51 3
6
1
6
1
5
1
4
1
2
1
2
1
2
1
4
1
1
3
3
1
3
1
31
2
1
21
1
4
1357
8 6 4 2
I.B
M
1~
M
U
MS
3~
PULL BOX FUSE
( 15A)BREAKER ( 15A)
POWER SUPPLY
~ / N
220-240V 50Hz
220V 60Hz
TO NEXT
INDOOR
UNIT
BLU
BRN
ORN
YLW
RED
WHT
2
1
SW14
SWC
BRANCH
No.
SW11
1s
DIGIT
SW12
10ths
DIGIT
12345678910
SW1
SW5 240V220V
(RED)
ADDRESS
CN82
(RED)
ADDRESS
CN43
A.B
8
1
4
1
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
TO MA- REMOTE
CONTROLLER
DC8.7-13V
TO OUTDOOR UNIT
BC CONTROLLER
REMOTE CONTROLLER
DC24-30V
RED
BLU
GRN
/
YLW
MF
MV
ORN
*See fig : W1
ORN
BLU
BLU
BLU
BLU
LED2
LED1
GRN
YLW
ORN
RED
BRN
BLK
The black square ( ■ ) indicates a switch position.
PMFY-P20VBM-E#2 PMFY-P25VBM-E#2 PMFY-P32VBM-E#2 PMFY-P40VBM-E#2
PMFY-P20VBM-ER3 PMFY-P25VBM-ER3 PMFY-P32VBM-ER3 PMFY-P40VBM-ER3

2120 21
OC307F
PMFY-P20VBM-ER4 PMFY-P25VBM-ER4 PMFY-P32VBM-ER4 PMFY-P40VBM-ER4
MODELS:PMFY-P20,25,32,40VBM WIRING DIAGRAM
RG79A671K01
MODELS
P20VBM
SW2
123456
ON
OFF
P25VBM
123456
ON
OFF
P32VBM
123456
ON
OFF
P40VBM
123456
ON
OFF
SW3
1234567
ON
OFF
1234567
ON
OFF
123456
ON
OFF
123456
7
7
8
8
8
8
9
9
9
9
10
10
10
10
ON
OFF
[LEGEND]
SYMBOL NAME
I.B INDOOR CONTROLLER BOARD
CN25
CN27
CN32
CN51
CN52
SW2
SW3
SW4
SWE
CONNECTOR HUMIDIFIER
DAMPER
REMOTE SWITCH
A.B CIRCUIT BOARD
SW1
SW5
SW11
SW12
MODE SELECTION
VOLTAGE SELECTION
ADDRESS SETTING 1s DIGIT
ADDRESS SETTING 10ths DIGIT
SW14 BRANCH No.
CENTRALLY CONTROL
REMOTE INDICATION
CN105 IT TERMINAL
SWITCH
SWITCH
CAPACITY CORD
MODE SELECTION
MODEL SELECTOR
DRAIN UP MACHINE (TEST MODE)
X1 AUX.RELAY
FUSE FUSE (T6.3AL 250V)
LED1 POWER SUPPLY (I.B)
LED2 POWER SUPPLY (I.B)
SYMBOL NAME
TH21
DS
MF
MV
DP
THERMISTOR ROOM TEMP. DETECTION
(0°C/15kΩ, 25°C/5.4kΩ)
PIPE TEMP. DETECTION / LIQUID
(0°C/15kΩ, 25°C/5.4kΩ)
PIPE TEMP. DETECTION / GAS
(0°C/15kΩ, 25°C/5.4kΩ)
LEV LINEAR EXPANSION VALVE
TH22
TH23
DRAIN SENSOR
FAN MOTOR
VANE MOTOR
DRAIN PUMP
DRAIN PUMP
TB2
TB5
TB15 TRANSMISSION MA-REMOTE CONTROLLER
TERMINAL
BLOCK POWER SUPPLY
The black square ( ■ ) indicates a
switch position. <
*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 the table below.
7. Please set the switch SW5 according to the power supply voltage.
Set SW5 to 240V side when the power supply is 230 and 240 volts.
When the power supply is 220 volts, set SW5 to 220V side.
Mark Meaning Function
Power supply for
MA-Remote controller
Main power supply (Indoor unit:220-240V)
Power on → Iamp is lit
LED on indoor board for service
LED1 Main power supply
Power supply for MA-Remote controller
on → Iamp is lit
LED2
SWE
ON OFF
CN2M
(BLU)
M-NET
CN3A
(BLU)
REMOCON
TB5
(SHIELD)
M1 M2 TB2
TB15
1S
TH23
TH22
CN20
(RED)
INTAKE
CN105
(RED)
CN60
(WHT)
LEV
CN52
(GRN)
REMOTE
INDICATION
CN6V1
(GRN)
VANE
TH21
CNMF2
(WHT)
CNMF1
(WHT)
CN31
(WHT)
DRAIN
CN44
(WHT)
LIQUID
/ GAS
CN25
(WHT)
CN27
(RED)
ADDRESS
CN81 ( RED)
CN42
(RED)
ADDRESS
CN32 ( WHT)
REMOTE SWITCH
X1
CNP
(YLW)
D.U.M
CND (
BLK)
FUSE
CN51 (
WHT)
CENTRALLY
CONTROL
CN41
(WHT)
48
5
5
LEV
M
DS
DP
t°
t°
t°
t°
2L N
12345678910
SW3
123456
SW2
12345
SW4 81
51
51 3
6
1
6
1
5
5
1
14
1
2
1
2
1
2
1
4
1
1
3
3
1
3
1
31
2
1
21
1
4
1357
8 6 4 2
I.B
M
1~
M
MS
3~
PULL BOX FUSE
(15A) BREAKER (15A)
POWER SUPPLY
~ / N
220-240V 50Hz
220V 60Hz
TO NEXT
INDOOR
UNIT
BLU
BRN
ORN
YLW
RED
WHT
SW14
SWC
BRANCH
No.
SW11
1s
DIGIT
SW12
10ths
DIGIT
12345678910
SW1
SW5 240V220V
(RED)
ADDRESS
CN82
(RED)
ADDRESS
CN43
A.B
8
1
4
1
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
TO MA- REMOTE
CONTROLLER
DC8.7-13V
TO OUTDOOR UNIT
BC CONTROLLER
REMOTE CONTROLLER
DC24-30V
RED
BLU
GRN
/
YLW
MF
MV
ORN
*See fig : *1
ORN
BLU
BLU
BLU
BLU
LED2
LED1
BLK
GRN
YLW
ORN
RED
BRN
1
2