Mitsubishi Electric PLFY-P40VBM-E Operating manual

TECHNICAL & SERVICE MANUAL
Indoor unit
[Model names] [Service Ref.]
PLFY-P32VBM-E
PLFY-P40VBM-E
PLFY-P50VBM-E
PLFY-P63VBM-E
PLFY-P80VBM-E
PLFY-P100VBM-E
PLFY-P125VBM-E
No. OCH413
REVISED EDITION-A
CONTENTS
1. TECHNICAL CHANGES·························2
2. SAFETY PRECAUTION··························2
3. PART NAMES AND FUNCTIONS··········6
4. SPECIFICATIONS···································8
5. 4-WAY AIR FLOW SYSTEM·················13
6. OUTLINES AND DIMENSIONS············16
7. WIRING DIAGRAM·······························17
8. REFRIGERANT SYSTEM DIAGRAM ·····18
9. TROUBLESHOOTING··························19
10. SPECIAL FUNCTION ···························28
11. DISASSEMBLY PROCEDURE ·············31
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
PLFY-P32VBM-E.UK
PLFY-P32VBM-E1.UK
PLFY-P40VBM-E.UK
PLFY-P40VBM-E1.UK
PLFY-P50VBM-E.UK
PLFY-P50VBM-E1.UK
PLFY-P63VBM-E.UK
PLFY-P63VBM-E1.UK
PLFY-P80VBM-E.UK
PLFY-P80VBM-E1.UK
PLFY-P100VBM-E.UK
PLFY-P125VBM-E.UK
Note:
• This manual does not cover out-
door units.
When servicing them, please
refer to the outdoor unit’s service
manual.
• RoHS compliant products have
<G> mark on the spec name
plate.
October 2007
INDOOR UNIT
Model name
indication
PARTS CATALOG (OCB413)
Revision:
• PLFY-P32/40/50/63/80VBM-E1.UK
are added in REVISED EDITION-
A.
• Some descriptions have been
modified.
•Please void OCH413.
OCH413--1.qxp 07.10.16 0:36 PM Page 1

2
2SAFETY PRECAUTION
[1] Cautions for service
·After recovering the all refrigerant in the unit, proceed to working.
·Do not release refrigerant in the air.
·After completing the repair service, recharge the cycle with the specified amount of liquid refrigerant.
Cautions for units utilizing refrigerant R407C
CAUTIONS RELATED TO NEW REFRIGERANT
Do not use the existing refrigerant piping.
The old refrigerant and lubricant in the existing piping
contain a large amount of chlorine which may cause the
lubricant deterioration of the new unit.
Use “low residual oil piping”
If there is a large amount of residual oil (hydraulic oil, etc.)
inside the piping and joints, deterioration of the lubricant
will result.
Use ESTR , ETHER or HAB as the lubricant to
coat flares and flange connection parts.
If large amount of mineral oil enters, that can cause
deterioration of refrigerant oil etc.
Use liquid refrigerant to charge the system.
If gas refrigerant is used to seal the system, the composition
of the refrigerant in the cylinder will change and performance
may drop.
Do not use a refrigerant other than R407C.
If another refrigerant (R22, etc.) is used, the chlorine in the
refrigerant may cause the lubricant deterioration.
Use a vacuum pump with a reverse flow check valve.
The vacuum pump oil may flow back into the refrigerant
cycle and cause the lubricant deterioration.
Store the piping to be used during installation
indoors with keep both ends sealed until just
before brazing.
(Store elbows and other joints in a plastic bag.)
If dust, dirt, or water enters the refrigerant cycle,
deterioration of the oil and compressor trouble may result. Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
1TECHNICAL CHANGES
PLFY-P32VBM-E.UK PLFY-P32VBM-E1.UK
PLFY-P40VBM-E.UK PLFY-P40VBM-E1.UK
PLFY-P50VBM-E.UK PLFY-P50VBM-E1.UK
PLFY-P63VBM-E.UK PLFY-P63VBM-E1.UK
PLFY-P80VBM-E.UK PLFY-P80VBM-E1.UK
FAN MOTOR(MF) has been changed.
TURBO FAN, NUT and WASHER have been changed.
OCH413--1.qxp 07.10.16 0:36 PM Page 2

3
[3] Service tools
Use the below service tools as exclusive tools for R407C refrigerant.
[2] Refrigerant recharging
(1) Refrigerant recharging process
1Direct charging from the cylinder.
·R407C cylinder available on the market has a syphon pipe.
·Leave the syphon pipe cylinder standing and recharge it.
(By liquid refrigerant)
(2) Recharge in refrigerant leakage case
·After recovering the all refrigerant in the unit, proceed to working.
·Do not release the refrigerant in the air.
·After completing the repair service, recharge the cycle with the specified amount of
liquid refrigerant.
Gravimeter
Unit
No. Tool name Specifications
1Gauge manifold ·Only for R407C
·Use the existing fitting SPECIFICATIONS. (UNF7/16)
·Use high-tension side pressure of 3.43MPa·G or over.
2Charge hose ·Only for R407C
·Use pressure performance of 5.10MPa·G or over.
—
3Electronic scale
4Gas leak detector ·Use the detector for R134a or R407C.
5Adapter for reverse flow check ·Attach on vacuum pump.
—
—
6Refrigerant charge base
7Refrigerant cylinder ·For R407C ·Top of cylinder (Brown)
·Cylinder with syphon
8Refrigerant recovery equipment
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4
Cautions for units utilizing refrigerant R410A
Store the piping to be used during installation
indoors and keep both ends of the piping sealed
until just before brazing. (Leave elbow joints, etc.
in their packaging.)
Use ester oil, ether oil or alkylbenzene oil (small
amount) as the refrigerant oil applied to flares
and flange connections.
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.
Keep the 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.
Do not use the existing refrigerant piping.
The old refrigerant and lubricant in the existing piping
contains a large amount of chlorine which may cause the
lubricant deterioration of the new unit.
Use “low residual oil piping”
If there is a large amount of residual oil (hydraulic oil, etc.)
inside the piping and joints, deterioration of the lubricant
will result.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
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5
[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.
5Adaptor 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
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6
3PART NAMES AND FUNCTIONS
Drain pipe
Filter
Vane
Gas pipe
Liquid pipe
Air outlet
i-see sensor
(option)
Air intake
(Intake grille)
● Indoor unit
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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 purposes of this explanation,
all parts of the display are shown
as lit. 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
lid
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 1 hour,
when the airflow direction
also changes.
● Wired remote controller
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8
4-1. SPECIFICATIONS
4SPECIFICATIONS
Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items shall be referred to
the Installation Manual.
1-phase 220-240V 50Hz, 1-phase 220V 60Hz
Galvanized steel sheet
MUNSELL (6.4Y 8.9/0.4)
35 x 950 x 950
1-3/8 x 37-7/16 x 37-7/16
6 (13)
Cross fin (Aluminum fin and copper tube)
DC motor
Direct-drive
PS
PP honeycomb
Fuse
LEV
R410A, R407C, R22 CITY MULTI
O.D. [32 (VP-25)
Installation Manual, Instruction Book
PLFY-P32VBM-E
258 x 840 x 840
10-3/16 x 33-1/8 x 33-1/8
3.6
3,100
12,300
3,150
0.03
0.22
4.0
3,400
13,600
0.02
0.14
22 (49)
PLP-6BA
Turbo fan x 1
0
0
0.050
11 - 12 - 13 - 14
183 - 200 - 217 - 233
388 - 424 - 459 - 494
27 - 28 - 29 - 31
PLP-6BA
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
[6.35 ([1/4)
[6.35 ([1/4)
[12.7 ([1/2)
[12.7 ([1/2)
Flare
Flare
Flare
Flare
PLFY-P40VBM-E
4.5
3,900
15,400
4,000
0.04
0.29
5.0
4,300
17,100
0.03
0.22
22 (49)
PLP-6BA
Turbo fan x 1
0
0
0.050
12 - 13 - 14 - 16
200 - 217 - 233 - 267
424 - 459 - 494 - 565
27 - 28 - 30 - 31
PLP-6BA
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
[6.35 ([1/4)
[6.35 ([1/4)
[12.7 ([1/2)
[12.7 ([1/2)
Flare
Flare
Flare
Flare
PLFY-P50VBM-E
5.6
4,800
19,100
5,000
0.04
0.29
6.3
5,400
21,500
0.03
0.22
22 (49)
PLP-6BA
Turbo fan x 1
0
0
0.050
12 - 13 - 14 - 16
200 - 217 - 233 - 267
424 - 459 - 494 - 565
27 - 28 - 30 - 31
PLP-6BA
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
[6.35 ([1/4)
[9.52 ([3/8)
[12.7 ([1/2)
[15.88 ([5/8)
Flare
Flare
Flare
Flare
Flare
Flare
Flare
Flare
PLFY-P63VBM-E
7.1
6,100
24,200
6,300
0.05
0.36
8.0
6,900
27,300
0.04
0.29
23 (51)
PLP-6BA
Turbo fan x 1
0
0
0.050
14 - 15 - 16 - 18
233 - 250 - 267 - 300
494 - 530 - 565 - 636
28 - 29 - 30 - 32
PLP-6BA
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
[9.52 ([3/8)
[9.52 ([3/8)
[15.88 ([5/8)
[15.88 ([5/8)
Decoration panel **1
Air outlet shutter plate
High efficiency filter
element **2
Multi-function casement
**1.PLFY-P-VBM-E should use together with PLP-6BA.
*2.PAC-SH53TM-E is necessary to use with filter PAC-SH59KF-E.
1 Nominal cooling conditions
Note : Indoor :
Outdoor :
Pipe length :
Level difference :
27:DB/19:WB (81°FDB/66°FWB)
35:DB (95°FDB)
7.5 m (24-9/16 ft)
0 m (0 ft)
2 Nominal cooling conditions 3 Nominal heating conditions
27:DB/19.5:WB (81°FDB/67°FWB)
35:DB (95°FDB)
5 m (16-3/8 ft)
0 m (0 ft)
Unit converter
20:DB (68°FDB)
7:DB/6:WB (45°FDB/43°FWB)
7.5 m (24-9/16 ft)
0 m (0 ft)
* Due to continuing improvement, above specification may be subject to change without notice.
* Nominal conditions 1, 3 are subject to JIS B8615-1.
kcal/h = kW x 860
Btu/h = kW x 3,412
cfm = m3/min x 35.31
lb = kg / 0.4536
*Above specification data is
subject to rounding variation.
Model
Power source
Cooling capacity
(Nominal)
Heating capacity
(Nominal )
External finish
External dimension H x W x D
Net weight
Decoration panel
Heat exchanger
FAN
Noise level (Low-Mid2-Mid1-High)
(measured in anechoic room)
Insulation material
Air filter
Protection device
Refrigerant control device
Connectable outdoor unit
Diameter of
refrigerant pipe
Field drain pipe size
Standard
attachment
Remark
Power input
Current input
Power input
Current input
Type x Quantity
External
static press.
Motor type
Motor output
Driving mechanism
Airflow rate
(Low-Mid2-
Mid1-High)
Liquid
Gas
Document
Accessory
Optional parts
Installation
Model
External finish
Dimension
H x W x D
Net weight
kW
kcal / h
Btu / h
kcal / h
kW
A
kW
kcal / h
Btu / h
kW
A
mm
in.
kg (lb)
mm
in.
kg (lb)
Pa
mmH2O
kW
m3/ min
L / s
cfm
dB <A>
mm (in.)
mm (in.)
mm (in.)
1
1
1
2
3
3
3
(R410A)
(R22, R407C)
(R410A)
(R22, R407C)
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9
9.0
7,700
30,700
8,000
0.07
0.51
10.0
8,600
34,100
0.06
0.43
258 x 840 x 840
10-3/16 x 33-1/8 x 33-1/8
Turbo fan x 1
0
0
0.050
16 - 18 - 20 - 22
267 - 300 - 333 - 367
565 - 636 - 706 - 777
30 - 32 - 35 - 37
PLP-6BA
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
11.2
9,600
38,200
10,000
0.15
1.00
12.5
10,800
42,700
0.14
0.94
Turbo fan x 1
0
0
0.120
21 - 24 - 27 - 29
350 - 400 - 450 - 483
742 - 848 - 953 - 1024
34 - 37 - 39- 41
PLP-6BA
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
14.0
12,000
47,800
12,500
0.16
1.07
16.0
13,800
54,600
0.15
1.00
Turbo fan x 1
0
0
0.120
22 - 25 - 28 - 30
367 - 417 - 467 - 500
777 - 883 - 989 - 1059
35 - 38 - 41 - 43
PLP-6BA
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items shall be referred to
the Installation Manual.
Installation Manual, Instruction Book
1-phase 220-240V 50Hz, 1-phase 220V 60Hz
Galvanized steel sheet
MUNSELL (6.4Y 8.9/0.4)
35 x 950 x 950
1-3/8 x 37-7/16 x 37-7/16
6(13)
Cross fin (Aluminum fin and copper tube)
DC motor
Direct-drive
PS
PP honeycomb
Fuse
LEV
R410A, R407C, R22 CITY MULTI
O.D. [32 (VP-25)
PLFY-P80VBM-E
298 x 840 x 840
11-3/4 x 33-1/8 x 33-1/8
23(51)
PLP-6BA
[9.52 ([3/8)
[9.52 ([3/8)
[15.88 ([5/8)
[15.88 ([5/8)
Flare
Flare
Flare
Flare
PLFY-P100VBM-E
27(60)
PLP-6BA
[9.52 ([3/8)
[9.52 ([3/8)
[15.88 ([5/8)
[19.05 ([3/4)
Flare
Flare
Flare
Flare
PLFY-P125VBM-E
27(60)
PLP-6BA
[9.52 ([3/8)
[9.52 ([3/8)
[15.88 ([5/8)
[19.05 ([3/4)
Flare
Flare
Flare
Flare
Air outlet shutter plate
High efficiency filter
element **2
Multi-function casement
1 Nominal cooling conditions
Note : Indoor :
Outdoor :
Pipe length :
Level difference :
27:DB/19:WB (81°FDB/66°FWB)
35:DB (95°FDB)
7.5 m (24-9/16 ft)
0 m (0 ft)
2 Nominal cooling conditions
27:DB/19.5:WB (81°FDB/67°FWB)
35:DB (95°FDB)
5 m (16-3/8 ft)
0 m (0 ft)
3 Nominal heating conditions Unit converter
20:DB (68°FDB)
7:DB/6°CWB (45°FDB/43°FWB)
7.5 m (24-9/16 ft)
0 m (0 ft)
* Due to continuing improvement, above specification may be subject to change without notice.
* Nominal conditions 1, 3 are subject to JIS B8615-1.
kcal/h = kW x 860
Btu/h = kW x 3,412
cfm = m3/min x 35.31
lb = kg / 0.4536
*Above specification data is
subject to rounding variation.
Model
Power source
Cooling capacity
(Nominal)
Heating capacity
(Nominal )
External finish
External dimension H x W x D
Net weight
Decoration panel
Heat exchanger
FAN
Noise level (Low-Mid2-Mid1-High)
(measured in anechoic room)
Insulation material
Air filter
Protection device
Refrigerant control device
Connectable outdoor unit
Diameter of
refrigerant pipe
Field drain pipe size
Standard
attachment
Remark
Power input
Current input
Power input
Current input
Type x Quantity
External
static press.
Motor type
Motor output
Driving mechanism
Airflow rate
(Low-Mid2-
Mid1-High)
Liquid
Gas
Document
Accessory
Decoration panel **1
Optional parts
Installation
Model
External finish
Dimension
H x W x D
Net weight
kW
kcal / h
Btu / h
kcal / h
kW
A
kW
kcal / h
Btu / h
kW
A
mm
in.
kg (lb)
mm
in.
kg (lb)
Pa
mmH2O
kW
m3/ min
L / s
cfm
dB <A>
mm (in.)
mm (in.)
mm (in.)
1
1
1
2
3
3
3
(R410A)
(R22, R407C)
(R410A)
(R22, R407C)
**1.PLFY-P-VBM-E should use together with PLP-6BA.
*2.PAC-SH53TM-E is necessary to use with filter PAC-SH59KF-E.
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10
4-2. ELECTRICAL PARTS SPECIFICATIONS
Parts name
Service Ref. Symbol
TH21
TH22
TH23
FUSE
MF
MV
DP
FS
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
(L, N, ;) Rated to 330V 30A W
(M1, M2, S) Rated to 250V 20A W
(1, 2) Rated to 250V 10A W
Liquid pipe thermistor
Gas pipe thermistor
Vane motor
Drain-up mechanism
Drain float switch
Linear expansion valve
PLFY-P40VBM-E.UK
PLFY-P40VBM-E1.UK
PLFY-P32VBM-E.UK
PLFY-P32VBM-E1.UK PLFY-P50VBM-E.UK PLFY-P50VBM-E1.UK PLFY-P63VBM-E.UK PLFY-P63VBM-E1.UK
Room temperature
thermistor
Fuse
(Indoor controller board)
Fan motor
Power supply terminal
block
Transmission terminal
block
MA remote controller
terminal block
8-pole OUTPUT 50W
MSBPC20M04
DC12V 300
" /phase
PLD-12230ME-1
INPUT 12/10.8W 24R/Hr
DC12V Stepping motor drive port dimension 5.2
" (0~2000pulse)
EDM-40YGME
WNote : Refer to WIRING DIAGRAM for the supplied voltage.
open / short detection
OCH413--1.qxp 07.10.16 0:36 PM Page 10

11
Parts name
Service Ref. Symbol
TH21
TH22
TH23
FUSE
MF
MV
DP
FS
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
(L, N, ;) Rated to 330V 30A W
(M1, M2, S) Rated to 250V 20A W
(1, 2) Rated to 250V 10A W
Liquid pipe thermistor
Gas pipe thermistor
Vane motor
Drain-up mechanism
Drain float switch
Linear expansion valve
PLFY-P100VBM-E.UK
PLFY-P80VBM-E.UK
PLFY-P80VBM-E1.UK PLFY-P125VBM-E.UK
Room temperature
thermistor
Fuse
(Indoor controller board)
Fan motor
Power supply terminal
block
Transmission terminal
block
MA remote controller
terminal block
8-pole OUTPUT 50W 8-pole OUTPUT 120W
MSBPC20M04
DC12V 300
" /phase
PLD-12230ME-1
INPUT 12/10.8W 24R/Hr
open / short detection
DC12V Stepping motor drive port dimension 5.2
" (0~2000pulse)
EDM-80YGME
WNote : Refer to WIRING DIAGRAM for the supplied voltage.
4-3. SOUND LEVEL
* Measured in anechoic room.
PLFY-P-VBM-E
PLFY-P32VBM-E(1).UK
Service Ref.
PLFY-P50VBM-E(1).UK
PLFY-P40VBM-E(1).UK
PLFY-P63VBM-E(1).UK
PLFY-P80VBM-E(1).UK
PLFY-P100VBM-E.UK
PLFY-P125VBM-E.UK
27-28-29-31
27-28-30-31
28-29-30-32
30-32-35-37
34-37-39-41
35-38-41-43
Sound level dB (A)
Sound level at anechoic room : Low-Mid2-Mid1-High
1.5m
Measurement location
OCH413--1.qxp 07.10.16 0:36 PM Page 11

12
PLFY-P32VBM-E(1).UK
External static pressure : 0Pa
Power source :
220,230,240V, 50Hz / 220V, 60Hz
PLFY-P40VBM-E(1).UK
External static pressure : 0Pa
Power source :
220,230,240V, 50Hz / 220V, 60Hz
PLFY-P50VBM-E(1).UK
External static pressure : 0Pa
Power source :
220,230,240V, 50Hz / 220V, 60Hz
PLFY-P63VBM-E(1).UK
External static pressure : 0Pa
Power source :
220,230,240V, 50Hz / 220V, 60Hz
PLFY-P125VBM-E.UK
External static pressure : 0Pa
Power source :
220,230,240V, 50Hz / 220V, 60Hz
PLFY-P80VBM-E(1).UK
External static pressure : 0Pa
Power source :
220,230,240V, 50Hz / 220V, 60Hz
PLFY-P100VBM-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 High 50/60Hz Middle1 50/60Hz Low 50/60Hz Middle2 50/60Hz
High 50/60Hz Middle1 50/60Hz
Low 50/60Hz Middle2 50/60Hz
High 50/60Hz Middle1 50/60Hz
Low 50/60Hz Middle2 50/60Hz
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)
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)
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)
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
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
4-4. NC curves
OCH413--1.qxp 07.10.16 0:36 PM Page 12

13
54-WAY AIR FLOW SYSTEM
5-1. 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
2.5m
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-P32·P40·P50·P63·P80VBM-E(1).UK
PLFY-P100·P125VBM-E.UK
4
3
2
1
Silent
2.7m
3.0m
3.3m
2
Standard
3.2m
3.6m
4.0m
3
High ceiling
4.5m
4.5m
4.5m
4 direction
3 direction
2 direction
SWA
SWB
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
OCH413--1.qxp 07.10.16 0:36 PM Page 13

14
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
5-3. OPERATION IN CONJUNCTION WITH
DUCT FAN (Booster fan)
• Whenever the indoor unit is operating, the duct fun also
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 wires.
MB: Electromagnetic switch power relay for duct fan.
X: Auxiliary relay (For DC 12V, 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
Refrigerant 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°
100 100 90
100 130
*155 *167
5-2. 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.
OCH413--1.qxp 07.10.16 0:36 PM Page 14

15
llPLFY-P32 · P40 · P50 · P63 · P80VBM-E(1).UK
Multifunction casement + Standard filter
22PLFY-P100 · P125VBM-E.UK
Multifunction casement + High efficiency filter
Taking air into the unit
Multifunction casement + Standard filter Multifunction casement + High efficiency filter
Taking air into the unit
5-4. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS
Q
0
BA
C
1Curve in the
graphs
Duct characteristics
at site
Q
A
EC
2
Q
Qa
AD
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
-200
-150
-100
-50
0
50
0123456
Static pressure[Pa]
Airflow rate [m3/min]
-200
-150
-100
-50
0
50
02468
Static pressure[Pa]
Airflow rate [m3/min]
Static pressure[Pa]
Static pressure[Pa]
-200
-150
-100
-50
0
50
02468
2 - inlet
1 - inlet
-200
-150
-100
-50
0
50
02468
2 - inlet
1 - inlet
Airflow rate [m3/min] Airflow rate [m3/min]
-200
-150
-100
-50
0
50
0123456
2 - inlet
1 - inlet
Static pressure[Pa]
-200
-150
-100
-50
0
50
0123456
2 - inlet
1 - inlet
Airflow rate [m3/min] Airflow rate [m3/min]
Static pressure[Pa]
OCH413--1.qxp 07.10.16 0:36 PM Page 15

16
6OUTLINES AND DIMENSIONS
Ceiling
Cut out hole
Burring hole pitch
3-[2.8
Burring hole
Detail drawing of fresh air intake hole
Burring hole
14-[2.8
Cut out hole
Burring hole pitch
Cut out hole
Detail connecting of branch duct(Both aspects)
100 130
350
90 100 100 90
70°
167
* 155
*
[150
[175
*
[125
[100
158
120°
120°
37728460
In case of auto-grille : PLP-6BAJ
In case of wireless remote controller : PLP-6BALM
In case of standard grille : PLP-6BA
Drain hole
Drain pump clean hole
and Drain emergency
drainage hole
Power supply wire,
Indoor unit/Outdoor unit
connecting wire entry
Transmission terminal block
Emergency operation switch<Cooling>
and Emergency Up/Down switch<Up>
Emergency operation
switch<Heating>and
Emergency Up/Down switch<Down>
Control wire entry
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 15 mm 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
ReceiverOperation lamp
For MA-Remote controller
terminal block
160
160
1
2
500
500
597
M
M
M
M
83 36
950
8336
950 597
**
*
50~70
140
170
35
17
+5 0
105
156
190
A
B
*
*
*
*
160
840
150
90
C
D
840
187.5
20~45 860~910 20~45
810
20~45860~91020~45
24
160
Power supply
terminal block
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 is included.
Max. lifting height is 850mm from the ceiling.
3. As for suspension bolt, please use M10 or W3/8. (Procured at local site)
4. Electrical box may be removed for the service purpose.
Make sure to slack the electrical wire little bit for control/power wires connection.
5. The height of the indoor unit is able to be adjusted with the grille attached.
6. For the installation of the optional high efficiency filter or optional
multi-functional casement.
1) Requires E or more space between transom and ceiling for the installation.
2) Add 135 mm to the dimensions * marked on the figure.
3) The optional high efficiency filter 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/water dew.)
8. As for necessary installation/service space, please refer to the left figure.
87
74
81
77
298
241 258
80
85
78
281
Refrigerant pipe··· [15.88 / [19.05
Flared connection
5/8 inch / 3/4 inch(compatible)
D
400
440
ECBA
Refrigerant pipe··· [12.7 /[15.88
Flared connection
1/2 inch / 5/8 inch(compatible)
Refrigerant pipe···[15.88
Flared connection···5/8 inch
Refrigerant pipe ···[12.7
Flared connection···1/2 inch
Refrigerant pipe···[ 6.35
Flared connection···1/4 inch
Refrigerant pipe··· [6.35 /[9.52
Flared connection
1/4 inch / 3/8 inch (compatible)
PLFY-P50VBM-E
PLFY-P63,80VBM-E
PLFY-P100,125VBM-E
Refrigerant pipe···3/8 inch
Flared connection···[9.52
Models
PLFY-P32,40VBM-E
21
Accessory ··· Drain socket (I.D. 32)
Flare nut 3/8 inch(For P50)
Flare nut 5/8 inch(For P50)
Flare nut 3/4 inch(For P100/P125)
1000 mm or more
3000 mm or
more
Indoor unit
Indoor unit
Floor
Obstacle
1500 mm
or more
Grille
Ceiling
For high
attachment
1800mm or more
from floor
Ceiling
Air intake grille
L.L Filter
Auto-grille
Max. 4.0m
Air intake grille up/down distance
PLFY-P32VBM-E.UK PLFY-P40VBM-E.UK PLFY-P50VBM-E.UK PLFY-P63VBM-E.UK
PLFY-P80VBM-E.UK PLFY-P100VBM-E.UK PLFY-P125VBM-E.UK
PLFY-P32VBM-E1.UK PLFY-P40VBM-E1.UK PLFY-P50VBM-E1.UK PLFY-P63VBM-E1.UK
PLFY-P80VBM-E1.UK Unit : mm
OCH413--1.qxp 07.10.16 0:36 PM Page 16

17
WIRING DIAGRAM
7
PLFY-P32VBM-E.UK PLFY-P40VBM-E.UK PLFY-P50VBM-E.UK PLFY-P63VBM-E.UK
PLFY-P80VBM-E.UK PLFY-P100VBM-E.UK PLFY-P125VBM-E.UK
PLFY-P32VBM-E1.UK PLFY-P40VBM-E1.UK PLFY-P50VBM-E1.UK PLFY-P63VBM-E1.UK
PLFY-P80VBM-E1.UK
CN27
CN32
CN51
CN52
SW2
SW3
SW4
SWE
ZNR01,02
DSA
FUSE
X1
LED1
LED2
MF
MV
DP
FS
TH21
TH22
TH23
LEV
ROOM TEMP. DETECTION
(0:/ 15kΩ, 25:/ 5.4kΩ)
PIPE TEMP. DETECTION / LIQUID
(0:/ 15kΩ, 25:/ 5.4kΩ)
PIPE TEMP. DETECTION / GAS
(0:/ 15kΩ, 25:/ 5.4kΩ)
FAN MOTOR
VANE MOTOR
DRAIN-UP MACHINE
DRAIN FLOAT SWITCH
THERMISTOR
LINEAR EXPANSION VALVE
I. B
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
INDOOR CONTROLLER BOARD
CONNECTOR DAMPER
REMOTE SWITCH
CENTRALLY CONTROL
REMOTE INDICATION
CAPACITY CODE
MODE SELECTION
MODEL SELECTION
DRAIN-UP MACHINE (TEST MODE)
SWITCH
VARISTOR
SURGE ABSORBER
FUSE (T6.3AL250V)
AUX. RELAY
POWER SUPPLY (I. B)
POWER SUPPLY (I. B)
DRAIN WATER LIFTING-UP MACH.
SYMBOL SYMBOLNAME NAME
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 fig<*1>.
[LEGEND]
LED on indoor board for service
TB2
TB5
TB15
POWER SUPPLY
TRANSMISSION
MA-REMOTE CONTROLLER
TERMINAL
BLOCK
SW1
SW11
SW12
SW14
SWA
SWB
SWC
W.B
RU
BZ
LED1
LED2
SW1
SW2
A. B
OPTION PART
ADDRESS BOARD
SWITCH
MODE SELECTION
ADDRESS SETTING 1ST DIGIT
ADDRESS SETTING 2ND DIGIT
CONNECTION NO.
CEILING HEIGHT SELECTOR
DISCHARGE OUTLET NUMBER
SELECTOR
OPTION SELECTOR
PCB FOR WIRELESS REMOTE CONTROLLER
RECEVING UNIT
BUZZER
LED (OPERATION INDICATION : GREEN)
LED (PREPARATION FOR HEATING : ORANGE)
EMERGENCY OPERATION (HEAT / DOWN)
EMERGENCY OPERATION (COOL / UP)
SYMBOL NAME
19
* Be sure to turn off the power source
and then disconnect fan motor connector.
(Failure to do so will cause trouble in Fan motor.)
A.B
(RED)
ADDRESS
CN43
ADDRESS
CN81
(RED)
LED2
ADDRESS
CN42
(RED)
(RED)
ADDRESS
CN82
VANE CNV
(WHT)
SWBSWA
SWC
SW1
MV MV MV MV
SW12
3RD.DIGIT 2ND.DIGIT 1ST.DIGIT
SW11
CN32
(WHT) SW3 SW4
SWE
SW2
SW14
CONNECTION
No.
ON
OFF
ON
OFF ON OFF
ON OFF
3
9
6
54 3
8
5555
4
3
2
1
12345678910
12345678910 12345612345
GRILLE 2
3
4
00 0
0
See fig:*1
M-NET
CN2M
(BLU)
CND
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)
LEV
CN60
(WHT)
WHT
YLW
ORN
BLU
RED BRN
MA REMOCON
CN3A
(BLU)
i-SEE SENSOR
CN4Y
(WHT)
i-SEE SENSOR MOTOR
CN6Y
(RED)
LIQUID/PIPE
CN44
(WHT)
CN41
(WHT)
CN51
(WHT)
CN52
(GRN)
AUTO GRILLE
CN3G
(BLK)
TH21TH23TH22 FS
CN27
(RED)
LED1 X1
DSA
ZNR02
FUSE
CN3A
ZNR01
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
DC311~339V
RECTIFICATION
U.B
CN3G
AUTOMATIC FILTER ELEVATION PANEL
(OPTIONAL PART)
BZ
LEV
MT LED2
SW1
CNB
TO MA-REMOTE
CONTROLLER
DC8.7-13V
I-SEE SENSOR CORNER PANEL
(OPTIONAL PART)
I-SEE
SENSOR
TB15
BLU
BLU
SW2 LED1
RU
W.B
Pair No.
J42J41
14
1
2
1
4
1
8
1515
16
M
M
14
16
13
13
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
ON
OFF
123456
ON
OFF
123456
ON
OFF
123456
ON
OFF
123456
ON
OFF
123456
ON
OFF
123456
ON
OFF
123456
P32
MODELS MODELS
<*1> SW2 SW2
P40
P50
P63
P80
P100
P125
t°t°
14 14
t°
21
31
2121 74
11313
3~
MF
MS M
1~
U
21
U
135
L
N
M1
M2
S
M M M M
1418
DP 13 153
OCH413--1.qxp 07.10.16 0:36 PM Page 17

18
8 REFRIGERANT SYSTEM DIAGRAM
Strainer (#100mesh)
Strainer (#100mesh)
Strainer1 (#50mesh)
Strainer2 (#100mesh)
Heat exchanger
Room temparature thermistor TH21
Gas pipe thermistor TH23
Liquid pipe thermistor TH22
Linear expansion valve
Gas pipe
Liquid pipe
Flare connection
Gas pipe
Liquid pipe
PLFY-P32, P40VBM-E
[12.7(1/2)
[6.35(1/4)
PLFY-P50VBM-E
[12.7(1/2)/[15.88(5/8)
[6.35(1/4)/[9.52(3/8)
PLFY-P63, P80VBM-E
[15.88(5/8)
[9.52(3/8)
PLFY-P100, P125VBM-E
[15.88(5/8)/[19.05(3/4)
[9.52(3/8)
Item Capacity Unit : mm(inch)
PLFY-P32VBM-E.UK PLFY-P40VBM-E.UK PLFY-P50VBM-E.UK PLFY-P63VBM-E.UK
PLFY-P80VBM-E.UK PLFY-P100VBM-E.UK PLFY-P125VBM-E.UK
PLFY-P32VBM-E1.UK PLFY-P40VBM-E1.UK PLFY-P50VBM-E1.UK PLFY-P63VBM-E1.UK
PLFY-P80VBM-E1.UK
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19
TROUBLESHOOTING
9
9-1. HOW TO CHECK THE PARTS
PLFY-P32/40/50/63/80/100/125VBM-E.UK PLFY-P32/40/50/63/80VBM-E1.UK
Parts name Check points
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature of 10:~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 Thermistor characteristic graph.)
Room temperature
thermistor (TH21)
Liquid pipe thermistor
(TH22)
Gas pipe thermistor
(TH23)
1
3
YLW
YLW
Normal
4.3k"~9.6k"
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:~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:~30:)
Abnormal
Open or short
Red - Yellow
Red - Blue
Red - Orange
Red - White
Connector Normal
250"
Disconnect the connector then measure the resistance valve with a tester.
Linear expansion
valve(LEV) Abnormal
Open or short
Normal
150k"i10%
White-Red Yellow-Brown Orange-Red Blue-Brown
Orange
Red
White
Blue
Brown
Yellow
MRefer to 9-1-3.
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
DC 1.857V~ 3.132V Other than the normal
DC 0.939V~ 1.506V
2(–)—4(+)
i-see sensor connector
i-see sensor (At the ambient temperature of 10:~40:)
NOTE : Be careful of handing such a static electricity.
1(+)—2(–) Other than the normal
4321
43 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
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20
0
10
20
30
40
50
-20 -10 0 10 20 30 40 50
< Thermistor for lower temperature >
Temperature (:)
Resistance (k")
4[4
3
62
5
[3
2[2
1[1
[4
[3
[2
[1
Controller board
Drive circuit
Relay connector
Connector(CN60)
DC12V
Brown
Red
Blue
Orange
Yellow
White
5
1
3
4
6
M
4
6
2
3
5
1
Blue
Brown
Yellow
Orange
Red
White
Linear expansion valve
<Thermistor characteristic graph>
Room temperature thermistor(TH21)
Liquid pipe temperature thermistor(TH22)
Gas pipe temperature thermistor(TH23)
Thermistor R0=15k' ±3%
Fixed number of B=3480K ± 2%
Rt=15exp { 3480( ) }
0:15k'
10:9.6k'
20:6.3k'
25:5.4k'
30:4.3k'
40:3.0k'
Thermistor for
lower temperature
Linear expansion valve
①Operation summary of the linear expansion valve
• Linear expansion valves open/close through the use of a stepping motor after receiving the pulse signal from the indoor
controller board.
• Valve position can be changed in proportion to the number of pulse signals.
<Connection between the indoor controller board and the linear expansion valve>
1
273+t 1
273
Note : Since the number of the connector at the controller board side and the relay connector are different, follow the color of
the lead wire.
9-1-1. Thermistor
9-1-2.
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