Mitsubishi Electric PLFY-P VLMD-E Technical & … · by Mitsubishi Electric are used, fire or explosion may result. 1. Before installation and electric work s Before installing the

TECHNICAL & SERVICE MANUAL

Air-Conditioners For Building Application

<Indoor unit>

2004

Models

Ceiling CassettesSeries PLFY

For use with the R410A & R407C & R22

PLFY-P20VLMD-E,PLFY-P63VLMD-EPLFY-P25VLMD-E,PLFY-P80VLMD-EPLFY-P32VLMD-E,PLFY-P100VLMD-EPLFY-P40VLMD-E,PLFY-P125VLMD-EPLFY-P50VLMD-E

INDOOR UNIT

CONTENTSSAFETY PRECAUTIONS ·························11. FEATURES ···········································32. PART NAMES AND FUNCTIONS ········43. SPECIFICATION···································64. OUTLINES AND DIMENSIONS············85. WIRING DIAGRAM ·····························116. REFRIGERANT SYSTEM DIAGRAM 13····7. TROUBLE SHOOTING·······················148. DISASSEMBLY PROCEDURE···········20

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SAFETY PRECAUTIONS

and install the unit at the specified place.- Improper installation may cause the unit to topple and result in

injury.• Always use an air cleaner, humidifier, electric heater, and other

accessories specified by Mitsubishi Electric.- Ask an authorized technician to install the accessories. Improper

installation by the user may result in water leakage, electric shock,or fire.

• Never repair the unit. If the air conditioner must be repaired,consult the dealer.- If the unit is repaired improperly, water leakage, electric shock, or

fire may result.• Do not touch the heat exchanger fins.

- Improper handling may result in injury.• If refrigerant gas leaks during installation work, ventilate the

room.- If the refrigerant gas comes into contact with a flame, poisonous

gases will be released.• Install the air conditioner according to this Installation Manual.

- If the unit is installed improperly, water leakage, electric shock, orfire may result.

• Have all electric work done by a licensed electrician accordingto “Electric Facility Engineering Standard” and “Interior WireRegulations”and the instructions given in this manual and al-ways use a special circuit.- If the power source capacity is inadequate or electric work is per-

formed improperly, electric shock and fire may result.

• Securely install the cover of control box and the panel.- If the cover and panel are not installed properly,dust or water may

enter the outdoor unit and fire or electric shock may result.• When installing and moving the air conditioner to another site,

do not charge the it with a refrigerant different from the refrig-erant specified on the unit.- If a different refrigerant or air is mixed with the original refrigerant,

the refrigerant cycle may malfunction and the unit may be dam-aged.

• If the air conditioner is installed in a small room, measuresmust be taken to prevent the refrigerant concentration fromexceeding the safety limit even if the refrigerant should leak.- Consult the dealer regarding the appropriate measures to pre-

vent the safety limit from being exceeded. Should the refrigerantleak and cause the safety limit to be exceeded, hazards due tolack of oxygen in the room could result.

• When moving and reinstalling the air conditioner, consult thedealer or an authorized technician.- If the air conditioner is installed improperly, water leakage, elec-

tric shock, or fire may result.• After completing installation work, make sure that refrigerant

gas is not leaking.- If the refrigerant gas leaks and is exposed to a fan heater, stove,

oven, or other heat source, it may generate noxious gases.• Do not reconstruct or change the settings of the protection

devices.- If the pressure switch, thermal switch, or other protection device

is shorted and operated forcibly, or parts other than those specifiedby Mitsubishi Electric are used, fire or explosion may result.

1. Before installation and electric work

s Before installing the unit, make sure you read all the“Safety precautions”.

s The “Safety precautions” provide very importantpoints regarding safety. Make sure you follow them.

s This equipment may cause the adverse effect on thesame supply system.

s Please report to or take consent by the supply au-thority before connection to the system.

Symbols used in the text

Warning:Describes precautions that should be observed to prevent dangerof injury or death to the user.

Caution:Describes precautions that should be observed to prevent damageto the unit.

Symbols used in the illustrations

: Indicates an action that must be avoided.

: Indicates that important instructions must be followed.

: Indicates a part which must be grounded.

: Indicates that caution should be taken with rotating parts. (This

symbol is displayed on the main unit label.) <Color: Yellow>

: Beware of electric shock (This symbol is displayed on the main

unit label.) <Color: Yellow>

Warning:Carefully read the labels affixed to the main unit.

Warning:• Ask the dealer or an authorized technician to install the air con-

ditioner.- Improper installation by the user may result in water leakage, elec-

tric shock, or fire.• Install the air unit at a place that can withstand its weight.

- Inadequate strength may cause the unit to fall down, resulting ininjuries.

• Use the specified cables for wiring. Make the connections se-curely so that the outside force of the cable is not applied to theterminals.- Inadequate connection and fastening may generate heat and cause

a fire.• Prepare for typhoons and other strong winds and earthquakes

• Keep the electric parts away from water (washing water etc.).- It might result in electric shock, catching fire or smoke.

• To dispose of this product, consult your dealer.• Do not use a leak detection additive.

1

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2. Precautions for devices that use

Caution:• Do not use the existing refrigerant piping.

- The old refrigerant and refrigerator oil in the existing piping con-tains a large amount of chlorine which may cause the refrigeratoroil of the new unit to deteriorate.

• Use refrigerant piping made of C1220 (Cu-DHP) phosphorusdeoxidized copper as specified in the *JIS H3300 “Copper andcopper alloy seamless pipes and tubes”. In addition, be surethat the inner and outer surfaces of the pipes are clean andfree of hazardous sulphur, oxides, dust/dirt, shaving particles,oils, moisture, or any other contaminant.- Contaminants on the inside of the refrigerant piping may cause

the refrigerant residual oil to deteriorate.*JIS: Japanese Industrial Standard

• Store the piping to be used during installation indoors and keepboth ends of the piping sealed until just before brazing. (Storeelbows 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.• Use ester oil, ether oil or alkylbenzene (small amount) as the

refrigerator oil to coat flares and flange connections.- The refrigerator oil will degrade if it is mixed with a large amount of

mineral oil.• Use liquid refrigerant to fill the system.

- If gas refrigerant is used to seal the system, the composition ofthe refrigerant in the cylinder will change and performance maydrop.

• Do not use a refrig- If another refrigerant (R22, etc.) is used, the chlorine in the refrig-

erant may cause the refrigerator oil to deteriorate.• Use a vacuum pump with a reverse flow check valve..

- The vacuum pump oil may flow back into the refrigerant cycle andcause the refrigerator oil to deteriorate.

• Do not use the following tools that are used with conventionalrefrigerants.(Gauge manifold, charge hose, gas leak detector, reverse flowcheck valve, refrigerant charge base, vacuum gauge, refriger-ant recovery equipment)- If the conventional refrigerant and refrigerator oil are mixed in the

• Do not use a charging cylinder.- Using a charging cylinder may cause the refrigerant to deteriorate.

• Be especially careful when managing the tools.- If dust, dirt, or water gets in the refrigerant cycle, the refrigerant

may deteriorate.

R410A or R407C refrigerant

erant other than R410A or R407C.

R410A or R407C, the refrigerant may deteriorated.- If

deteriorate.water is mixed in the R410A or R407C, the refrigerator oil may

- Since R410A or R407C does not contain any chlorine, gas leak detectors for conventional refrigerants will not react to it.

2

PLFY-P20VLMD-E

PLFY-P25VLMD-E

PLFY-P32VLMD-E

PLFY-P40VLMD-E

PLFY-P50VLMD-E

PLFY-P63VLMD-E

2.2 / 2.5

2.8 / 3.2

3.6 / 4.0

4.5 / 5.0

5.6 / 6.3

PLFY-P80VLMD-E 9.0 / 10.0

PLFY-P100VLMD-E 11.2 / 12.5

PLFY-P125VLMD-E 14.0 / 16.0

7.1 / 8.0

FEATURES1

Indoor unit

Ceiling CassettesSeries PLFY

ModelsCooling capacity/Heating capacity

kW

3

PART NAMES AND FUNCTIONS2

Indoor (Main) Unit

Air inletSucks the ambient air in.

Long-life filterRemoves the sucked-in dust and dirt.Since the long-life filter is used as an airfilter, it should be cleaned at the begin-ning of air-cooling and heating seasons.(During seasons with large amounts ofdust and dirt, more frequent cleaning arerecommended.)

AutovaneDisperses the airflow up and down andadjusts the angle of the airflow.

Remote controller

[Operation buttons]

[PAR-20MAA] Once the controls are set, the same operation mode can

be repeated by simply pressing the ON/OFF button.

PAR-20MAA

ON/OFF

CENTRALLY CONTROLLED

ERROR CODE

CLOCK

ON OFF

˚C

CHECK

CHECK MODEFILTER

TEST RUNFUNCTION

˚C1Hr.

NOT AVAILABLESTAND BY DEFROST

FILTER

CHECK TEST

TEMP.

TIMER SET

1

2

3

4 5 6 8 7 9

0

C

A

B

1 [Room temperature adjustment] Button2 [Timer/continuous] Button3 [Selecting operation] Button4 [Time selection] Button

[Time-setting] Button5 [Louver] Button6 [Fan speed adjustment] Button

7 [Up/down airflow direction] Button8 [Ventilation] Button9 [Checking/built-in] Button0 [Test run] ButtonA [Filter] ButtonB [ON/OFF] ButtonC Position of built-in room temperature

•Never expose the remote controller to direct sunlight. Doing so can result in the erroneous measure-ment of room temperature.

•Never place any obstacle around the lower right-hand section of the remote controller. Doing so canresult in the erroneous measurement of room temperature.

4

[Display]

ON/OFF

CENTRALLY CONTROLLED

ERROR CODE

CLOCK

ON OFF

˚C

CHECK

CHECK MODEFILTER

TEST RUNFUNCTION

˚C1Hr.

NOT AVAILABLESTAND BY DEFROST

TEMP.

ABCD

E

F

H IKLJ

M

P

N

O

R

SQTU

G

A Current time/TimerB Centralized controlC Timer OND Abnormality occursE Operation mode: COOL, DRY, AUTO, FAN, HEATF Preparing for Heating modeG Defrost modeH Set temperatureI Power ONJ LouverK Not available functionL VentilationM Function setting modeN Test run modeO Error check modeP Filter signQ Set effective for 1 hr.R Sensor positionS Room temperatureT AirflowU Fan speed

5

3 SPECIFICATION

3-1. Specification

6

Note:

3 The figure in < > indicates panel's

1 Cooling/Heating capacity indicates the maximum value at operation under the following condition.Cooling : Indoor 27˚CDB/19˚CWB,Outdoor 35˚CDBHeating : Indoor 20˚CDB,Outdoor 7˚CDB/6˚CWB

2 Cooling capacity indicates the maximum value at operation under the following condition.Cooling : Indoor 27˚CDB/19.5˚CWB,Outdoor 35˚CDB (WR2: water 30˚C)

4 It is measured in anechoic room.

PLFY-P20VLMD-E PLFY-P25VLMD-E PLFY-P32VLMD-E PLFY-P40VLMD-E~ 220-240V 50Hz / ~ 220-230V 60HzPower source

kcal/h

kWCooling capacity

1

2 1

3

kWkWCooling

Heating

Cooling

Heating

kW

A

A

mm

mm

mm

kg

m3/min

Pa

kW

mm

mm

dB(A)

dB(A)

Heating capacity

Powerconsumption

Current

External finish(Munsel No.)

Dimension 3

Height

Width

Depth

Net weight

Heat exchanger

Fan

Type

External static pressure

MotorOutput

Type

Air filter

Refrigerant pipe dimension

Gas(Flare)

Liquid(Flare)

Drain pipe dimension

Unit: Galvanizing Decoration Panel: ABS (0.7Y 8.59/0.97) Service Panel: Galvanizing (0.7Y 8.59/0.97)

290 <20>776 <1080>

634 <710>

23 <6.5>

Cross fin

Turbo fan1

Single phase induction motor

PP honeycomb fabric (long life filter)ø 12.7

ø 6.35

Unit drain pipe I.D.32 (1-1/4inch)

6.5-8.0-9.5 7.0-8.5-10.5

0

0.015

24 <6.5>

Airflow rate (Lo-Mid-Hi)

Noise level (Lo-Mid-Hi) 4

220V,240V

230V

2.2

2,000

2.5

0.072 / 0.075

0.065 / 0.069

0.36 / 0.37

0.30 / 0.32

2.8

2,500

3.2

0.072 / 0.075

0.065 / 0.069

0.36 / 0.37

0.30 / 0.32

3.6

3,150

4.0

0.072 / 0.075

0.065 / 0.069

0.36 / 0.37

0.30 / 0.32

4.5

4,000

5.0

0.081 / 0.085

0.074 / 0.079

0.40 / 0.42

0.34 / 0.37

27-30-33

28-31-34 30-34-37

PLFY-P63VLMD-E PLFY-P80VLMD-E PLFY-P100VLMD-E PLFY-P125VLMD-E~ 220-240V 50Hz / ~ 220-230V 60HzPower source

kcal/h

kWCooling capacity

1

2 1

3

kWkWCooling

Heating

Cooling

Heating

kW

A

A

mm

mm

mm

kg

m3/min

Pa

kW

mm

mm

dB(A)

dB(A)

Heating capacity

Powerconsumption

Current

External finish(Munsel No.)

Dimension 3

Height

Width

Depth

Net weight

Heat exchanger

Fan

Type

External static pressure

MotorOutput

Type

Air filter

Refrigerant pipe dimension

Gas(Flare)

Liquid(Flare)

Drain pipe dimension

Unit: Galvanizing Decoration Panel: ABS (0.7Y 8.59/0.97) Service Panel: Galvanizing (0.7Y 8.59/0.97)

634 <710>

290 <20> 1446 <1750> 1708 <2010>

606 <710>

28 <7.5> 44 <12.5> 47 <12.5> 56 <13.0>

Cross fin

Turbo fan1 Turbo fan2 Sirocco fan4

Single phase induction motor

Synthetic fiber unwovencloth filter (long life)

ø 15.88

ø 9.52

Unit drain pipe I.D.32 (1-1/4inch)

10.0-13.0-15.524.0-27.0-30.0-33.0(Lo-Mid2-Mid1-Hi)

17.5-21.0-25.015.5-18.5-22.0

0

0.020 0.020 (at 240V) 0.030 (at 240V) 0.0782(at 240V)

Airflow rate (Lo-Mid-Hi)

Noise level (Lo-Mid-Hi) 4

220V,240V

230V

7.1

6,300

8.0

0.101 / 0.105

0.094 / 0.099

0.49 / 0.51

0.43 / 0.46

9.0

8,000

10.0

0.147 / 0.156

0.140 / 0.150

0.72 / 0.74

0.66 / 0.69

11.2

10,000

12.5

0.157 / 0.186

0.150 / 0.180

0.75 / 0.88

0.69 / 0.83

14.0

12,500

16.0

0.28 / 0.28

0.27 / 0.27

1.35 / 1.35

1.33 / 1.33

33-36-39

34-37-40

PLFY-P50VLMD-E

946 <1250>

27 <7.5>

PP honeycomb fabric (long life filter)

9.0-11.0-12.5

5.6

5,000

6.3

0.082 / 0.086

0.075 / 0.080

0.41 / 0.43

0.35 / 0.38

31-34-37

32-35-38

32-37-39

33-38-40 37-41-4340-42-44-46

(Lo-Mid2-Mid1-Hi)

ø 15.88 (R410A)ø 19.05 (R22,R407C)

29-33-36

ø 12.7 (R410A)ø 15.88 (R22,R407C)

ø 6.35 (R410A)ø 9.52 (R22,R407C)

36-39-42

1.7µFx 440V

1.5µFx 440V

2.2µFx 440V

1.5µFx 440V

2.0µFx 440V

5.0µFx 440V

LEV

C1 1.3µF x 440V

MF1

-

PLFY-P20VLMD-E

PLFY-P25VLMD-E

PLFY-P32VLMD-E

PLFY-P40VLMD-E

PLFY-P50VLMD-E

PLFY-P63VLMD-E

3-2. Electrical parts specifications

Model

Partsname

Tranrsformer T (Primary) 220-240V 50Hz, 220-230V 60Hz (Secondry) 23.2V 1.1A

(Primary)50/60Hz

220-240V(Secondry)18.4V 1.7A

Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ,25°C/5.4kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ



TH21

TH22

Gas pipethermistor

F901 250V 6.3A

MV

DP

Drain sensor DS

TB2

TB5TB15

Fuse(Indoor

controller board)

Power supplyterminal bed

Transmissionterminal bed

PLFY-P80VLMD-E

PLFY-P100VLMD-E

PLFY-P125VLMD-E

OFF 145±8°CON 88±15°C

DC12V Stepping motor

INPUT 6.4/5.5W400cm3/min

INPUT8/7.5W

400cm3/min

Resistance 0°C/6.0kΩ, 10°C/3.9kΩ, 20°C/2.6kΩ,25°C/2.2kΩ, 30°C/1.8kΩ, 40°C/1.3kΩ

DC12V Stepping motor drive port dimension ø 3.2 (0~2000pulse)

(L,N, ) 330V 30A

(M1,M2,S),(1,2) 300V 10A

Roomtemperaturethermistor

Fan motor(with Inner-

thermostat)

6-poleOUTPUT 15W

6-poleOUTPUT

30W

4-poleOUTPUT

78W

6-poleOUTPUT 20W

Symbol

TH23

Inner-thermostat

(Fan motor)

Liquid pipethermistor

Fan motorcapacitor

Drain-upmechanism

Linear expansion valve

Vane motor

OFF130˚C±5˚C

ON90˚C±20˚C

DC12V Stepping motor driveport dimension ø 5.2

0~1800pulse <at R410A outdoor unit>0~2000pulse <at the other outdoor unit>

0~1800pulse <at R410A outdoor unit>0~2000pulse <at the other outdoor unit>

7

4 OUTLINES AND DIMENSIONS

PLFY-P20·25·32·40·50·63·80·100VLMD-EUnit : mm

8

170m

m ±

5m

m(A

ctua

l Len

gth)

300m

m o

r le

ss

583mmMAX

73202

222

190

4-ø2

.9 M

ount

ing

hole

Fres

h ai

r in

take

240

x45

knoc

k ou

t hol

e

240

197

45216

710

AS

tand

ard

cent

er p

anel

Term

inal

bed

(Tra

nsm

issi

on)

Term

inal

bed

(Pow

er s

ourc

e)

48

670

48

70146

507

634

574

108

D(L

iftin

g B

olt P

itch)

108

B

Term

inal

box

Air

filte

r

Wat

er fi

lling

por

tD

rain

hol

e

3

2

1

290

45

20

68

20

20

68

More Than 350

670

190

146

497

634

122

266

60

574

(Lift

ing

Bol

t Pitc

h)

70

3

3622

2927

H(G

as)

22

H(L

iqui

d)

17

CM

P-6

3VLW

-B

CM

P-4

0VLW

-B38

877

682

410

4010

80

473

994

946

1210

1250

ED

CB

A

PLF

Y-P

63V

LMD

-EP

LFY

-P50

VLM

D-E

PLF

Y-P

40V

LMD

-EP

LFY

-P32

VLM

D-E

PLF

Y-P

25V

LMD

-EP

LFY

-P20

VLM

D-EMod

el

217.

52

=435F

6G

PLF

Y-P

100V

LMD

-EP

LFY

-P80

VLM

D-E

1018

8.5

4=7

5414

9472

314

4617

1017

50C

MP

-100

VLW

-B

H

Not

e:1.

Use

M10

scr

ew fo

r th

e lif

ing

bolt

(fie

ld s

uppl

y).

2.It

is a

vaila

ble

to c

onne

ct th

e br

anch

duc

t on

right

and

left

side

bot

h.3.

On

Mod

el :5

0, 1

00, y

ou w

ould

use

flar

e nu

t pac

ked

with

the

Indo

or

Uni

t, w

hen

conn

nect

ing

the

Out

door

Uni

t for

R40

7C, R

22.

4.In

ord

er to

incr

ease

the

stre

ngth

of t

he fl

are

nut,

the

size

of s

ome

of th

em h

as b

een

incr

ease

d.

<fla

re>

Mod

elG

as p

ipe:

LPø1

2.7

20·2

5·32

·40

Liqu

id p

ipe:

HP

ø6.3

5 M

odel

Gas

pip

e:LP

ø12.

7<R

410A

out

door

uni

t>50

ø15.

88<

The

oth

er o

utdo

or u

nit>

Li

quid

pip

e:H

Pø6

.35<

R41

0A o

utdo

or u

nit>

ø9.5

2<T

he o

ther

out

door

uni

t> M

odel

Gas

pip

e:LP

ø15.

88

63·8

0Li

quid

pip

e:H

Pø9

.52

Mod

elG

as p

ipe:

LPø1

5.88

<R

410A

out

door

uni

t>10

0ø1

9.05

<T

he o

ther

out

door

uni

t>Li

quid

pip

e:H

Pø9

.52

Dra

in h

ose

V

P-2

5<fle

xibl

e jo

int>

(ac

cess

ory)

······

·· 1

······

·· 2

······

·· 1

······

·· 2

······

·· 1

······

·· 2

······

·· 1

······

·· 2

······

·· 3

G-ø

2.9

Mou

ntin

g ho

le

Bra

nch

duct

Fx1

10 k

nock

out

hol

e (b

oth

side

)(N

ote:

2)

Con

trol

box

2020

B

E

C

D(L

iftin

g bo

lt pi

tch)

221

34 159

52 110

F

PLFY-P125VLMD-EUnit : mm

A

3

31

2

Wat

er fi

lling

por

t

2 1 3

Air

filte

r

20338~353

4-ø2

.8M

ount

ing

hole

Sta

ndar

d ce

nter

pan

el(C

MP

-125

VLW

-B)

Bra

nch

duct

ø20

0 kn

ock

out h

ole

(bot

h si

de)

4-ø2

.9M

ount

ing

hole

Fres

h ai

r in

take

ø15

0 kn

ock

out h

ole

90˚

ø224

45˚

90˚

ø172

90˚303

170m

m±5

mm

(Act

ual l

engt

h)

600mm Max

300m

m o

r le

ss

45

More than 350

155

255

127

127

107

574

1970

670

48 48

107

1756

6868

574(

Lifti

ng b

olt p

itch)

192

1970

(Cei

ling

open

ing)

670(

Cei

ling

open

ing)

2020

710

2010

2020

290

606

145

856

1708

1756

(Lift

ing

bolt

pitc

h)

181

235

Dra

in h

ole

222

Con

trol

box

Term

inal

box

Term

inal

bed

(Pow

er s

ourc

e)

7033

3

38

106

476 70

178

606

Term

inal

bed

(Tra

nsm

issi

on)

Not

e:1.

Use

M10

scr

ew fo

r th

e lif

ting

bolt

(fie

ld s

uppl

y).

2.O

n th

is m

odel

, you

wou

ld u

se fl

are

nut p

acke

d w

ith th

e In

door

Uni

t, w

hen

conn

nect

ingt

he

Out

door

Uni

t for

R40

7C, R

22.

3.In

ord

er to

incr

ease

the

stre

ngth

of t

hefla

re n

ut,

the

size

of s

ome

of th

em h

as b

een

incr

ease

d.

36A

(Gas

)A

(Liq

uid)

22P

LFY-

P12

5VLM

D-E

Mod

el

<fla

re>

Gas

pip

e:LP

ø15.

88<

R41

0A o

utdo

or u

nit>

ø19.

05<

The

oth

er o

utdo

or u

nit>

Liqu

id p

ipe:

HP

ø9.5

2 D

rain

hos

e V

P-2

5<fle

xibl

e jo

int>

(ac

cess

ory)

······

·· 1

······

·· 2

······

·· 3

9

10

PLFY-P20·25·32·40·50·63·80·100VLMD-E with OA duct flangeUnit : mm

52

34

110

159

E

20

221

Con

trol

Box

G-ø

2.9

Mou

ntin

g ho

le

both

sid

e 206

241

138

243

103

D(L

iftin

g B

olt P

itch)

C B20

F

Bra

nch

duct

Fx1

10 k

nock

out

hol

e (b

oth

side

)(N

ote:

2)

45˚

Fres

h ai

r in

take

kno

ck o

ut d

imen

sion

Fres

h ai

r in

take

ø15

0 kn

ock

out h

ole

4-ø2

.9 M

ount

ing

hole

ø1

72

ø150

90˚

103

128

B

108

D(L

iftin

g B

olt P

itch)

108

574

634

507

146 70

48

670

48

Term

inal

bed

(Pow

er s

ourc

e)

Term

inal

bed

(Tra

nsm

issi

on)

128

24125

618

9

Term

inal

box

Air

filte

r

Wat

er fi

lling

por

tD

rain

hol

e

3

2

1

290

45

20

68

20

20

68

More Than 350

670

190

146

497

634

122

266

60

574

(Lift

ing

Bol

t Pitc

h)

70

170m

m

5m

m(A

ctua

l Len

gth)

300m

m o

r le

ss

583mmMAX

710

AS

tand

ard

cent

er p

anel

336

22

2927

H(G

as)

22

H(L

iqui

d)

17

CM

P-6

3VLW

-B

CM

P-4

0VLW

-B38

877

682

410

4010

80

473

994

946

1210

1250

ED

CB

A

PLF

Y-P

63V

LMD

-EP

LFY

-P50

VLM

D-E

PLF

Y-P

40V

LMD

-EP

LFY

-P32

VLM

D-E

PLF

Y-P

25V

LMD

-EP

LFY

-P20

VLM

D-EMod

el

217.

52

=435F

6G

PLF

Y-P

100V

LMD

-EP

LFY

-P80

VLM

D-E

1018

8.5

4=7

5414

9472

314

4617

1017

50C

MP

-100

VLW

-B

H

Not

e:1.

Use

M10

scr

ew fo

r th

e lif

ing

bolt

(fie

ld s

uppl

y).

2.It

is a

vaila

ble

to c

onne

ct th

e br

anch

duc

t on

right

and

left

side

bot

h.3.

On

Mod

el :5

0, 1

00, y

ou w

ould

use

flar

e nu

t pac

ked

with

the

Indo

or

Uni

t, w

hen

conn

nect

ing

the

Out

door

Uni

t for

R40

7C, R

22.

4.In

ord

er to

incr

ease

the

stre

ngth

of t

he fl

are

nut,

the

size

of s

ome

of th

em h

as b

een

incr

ease

d.

<fla

re>

Mod

elG

as p

ipe:

LPø1

2.7

20·2

5·32

·40

Liqu

id p

ipe:

HP

ø6.3

5 M

odel

Gas

pip

e:LP

ø12.

7<R

410A

out

door

uni

t>50

ø15.

88<

The

oth

er o

utdo

or u

nit>

Li

quid

pip

e:H

Pø6

.35<

R41

0A o

utdo

or u

nit>

ø9.5

2<T

he o

ther

out

door

uni

t> M

odel

Gas

pip

e:LP

ø15.

88

63·8

0Li

quid

pip

e:H

Pø9

.52

Mod

elG

as p

ipe:

LPø1

5.88

<R

410A

out

door

uni

t>10

0ø1

9.05

<T

he o

ther

out

door

uni

t>Li

quid

pip

e:H

Pø9

.52

Dra

in h

ose

V

P-2

5<fle

xibl

e jo

int>

(ac

cess

ory)

······

·· 1

······

·· 2

······

·· 1

······

·· 2

······

·· 1

······

·· 2

······

·· 1

······

·· 2

······

·· 3

5 WIRING DIAGRAM

PLFY-P20·25·32·40·50·63·80·100VLMD-E

11

DE

CO

RAT

ION

PA

NE

L

T2

T1

T7T6

T5T4

T3

BR

EA

KE

R (1

6A)

FUS

E (1

6A)

TO N

EX

T IN

DO

OR

UN

IT

PU

LL B

OX

( TR

AN

SM

ISS

ION

TE

RM

INA

L B

ED

)

SY

MB

OL

EX

PLA

NAT

ION

( TR

AN

SM

ISS

ION

TE

RM

INA

L B

ED

)

TO M

A R

EM

OTE

CO

NTR

OLL

ER

TO O

UTD

OO

R U

NIT

BC

CO

NTR

OLL

ER

RE

MO

TE C

ON

TRO

LLE

R

TB2

MV 3

41

52

41

52

3

MV C

N7V

12

34

5

79

S(SH

IELD

)TB5

PEN

CN2M

M1

M2

12

TB15 2 1

CN3A

13

CN

D

13

5

DS

A1

ZN

R1

CN

90

ZNR9

01X0

4X0

1X0

6X0

7X0

5

C

MF4

51

23

91

35

7

LEV

23

113

CN

P

T

31C

NT

31

CN

3T

DP

65

43

21

CN

60

13

CN

31

DSTH

23

12

CN

29

TH22

12

CN

21

TH21

21

CN

20

01

2 3

45

6

78

91

6

2

7

3

8

4

90 5

01

23 4 5 6

78

9

A

BCDE

F

SW

11(1

st d

igit)

SW

12(2

nd d

igit)

SW

14(C

onne

ction

No.)

INS

IDE

SE

CTI

ON

OF

CO

NTR

OL

BO

X

L

SW

2

SW

5

SW

3S

W4

SW

1S

W7

PO

WE

R S

UP

PLY

~22

0V-2

40V

50H

z22

0V-2

30V

60H

zF

or te

st o

f pum

p ou

t(a

fter

conf

irm

dra

in p

ump

out,

take

this

con

nect

or o

ff.)

CN

27C

N41

CN

52

CN

51C

N32

SW

8

I.B

Aux.

rela

y (D

rain

pum

p)

Term

inal

NA

ME

NA

ME

SY

MB

OL

MF C I.B TB2

TB5

TB15

F901

ZNR1

,ZNR

901

T DP

LEV

DS

MV

SY

MB

OL

CN

27C

N32

CN

41C

N51

CN

52X

01X

04X

05X

06X

07TH

21TH

22TH

23

SY

MB

OL

SW

11S

W12

SW

14S

W1

SW

2S

W3

SW

4S

W5

SW

7S

W8

T1~T

7

NA

ME

Switc

h (fo

r mod

el s

elec

tion)

Con

nect

or (C

entra

lly c

ontro

l)

Con

nect

or (R

emot

e in

dica

tion)

Con

nect

or (C

entra

lly c

ontro

l)C

onne

ctor

(HA

term

inal

-A)

Aux.

rela

y (L

not

ch:2

40V)

Con

nect

or (D

ampe

r)

Varis

tor

Fan

mot

orC

apac

itor(f

or M

F)In

door

con

trolle

r boa

rdPo

wer

sou

rce

term

inal

bed

Tran

smis

sion

term

inal

bed

MA

Rem

ote

cont

rolle

r ter

min

al b

ed

Fuse

(6.3

A/6A

)

Tran

sfor

mer

Dra

in p

ump

Elec

troni

c lin

ear e

xpan

.val

veD

rain

sen

sor

Mot

or fo

r van

e

Ther

mis

tor (

inle

t tem

p.de

tect

ion)

Ther

mis

tor (

pipe

tem

p.de

tect

ion/

liqui

d)Th

erm

isto

r (pi

pe te

mp.

dete

ctio

n/ga

s)

Switc

h (1

st d

igit

addr

ess

set)

Switc

h (2

nd d

igit

addr

ess

set)

Switc

h (c

onne

ctio

n N

o.se

t)Sw

itch

(for m

ode

sele

ctio

n 1)

Switc

h (fo

r mod

el s

elec

tion)

Switc

h (fo

r cap

acity

cod

e)Sw

itch

(for m

ode

sele

ctio

n 2)

Aux.

rela

y (M

/L n

otch

:240

V/22

0-23

0V)

Aux.

rela

y (H

/M n

otch

:240

V/22

0-23

0V)

Aux.

rela

y (H

not

ch:2

20-2

30V)

Switc

h (fo

r mod

e se

lect

ion

3)

Switc

h (fo

r vol

tage

sel

ectio

n)

F901

A

C250

V 6

.3AF

NO

TE

:1.

TB

2,T

B5,

and

TB

15 s

how

n in

dot

ted

line

are

field

wor

k.2.

Mar

k

ind

icat

es te

rmin

al

bed,

conn

ecto

r,

boa

rd

inse

rtio

n co

nnec

tor

of

fast

enin

g co

nnec

tor

of

cont

rol b

oard

.

95

37

1

99

773 3

5 5

1 1

2 2

4 4

1210

MF

MF

99

773 3

5 5

1 1

2 2

4 444

22

11

55

337 7

9 9CC

CN

90

Mo

del

:PL

FY

-P80

·100

VL

MD

-E

PLFY-P125VLMD-E

12

C

apac

itor

5.0µ

F

2

P

OW

ER

SU

PP

LY~

220

-240

V 5

0Hz

TO N

EX

T IN

DO

OR

UN

IT

PU

LL B

OX

FU

SE

(16A

)

BR

EA

KE

R(1

6A)

TO O

UT

DO

OR

UN

IT

BC

CO

NT

RO

LLE

R

M-N

ET

RE

MO

TE

CO

NT

RO

LLE

RA

C25

0V6.

3A F

For

test

of p

ump

out

(Afte

r co

nfir

m d

rain

pum

p ou

t,tak

e th

is c

onne

ctor

off.

)

PLF

Y-P

100·

125V

LMD

MF,

MF

1,M

F2

C,C

1,C

2I.B A.B

TB

2T

B5

F T DP

LEV

MV

DS

TH

21T

H22

SW

11(A

.B)

SW

12(A

.B)

C

apac

itor(

for

MF,

MF

1,M

F2)

Ele

ctro

nic

linea

r ex

pan.

valv

e

Ind

oor

cont

rolle

r bo

ard

Add

ress

boa

rd P

ower

sou

rce

term

inal

bed

Tra

nsm

issi

on te

rmin

al b

edT

B15

Tra

nsm

issi

on te

rmin

al b

ed F

use

AC

250V

6.3

A F

Tra

nsfo

rmer

Dor

ain

pum

p

Mot

or fo

r va

ne (

with

lim

it sw

itch)

Dra

in s

enso

r T

herm

isto

r (in

let t

emp.

dete

ctio

n)

Sw

itch

(1st

dig

it ad

dres

s se

t)

SW

1(A

.B)

SW

2(I.B

)S

W3(

I.B)

SW

A(A

.B)

TH

23

SW

14(A

.B)

SW

C(A

.B)

SY

MB

OL

Fan

mot

or

NA

ME

The

rmis

tor

(pip

e te

mp.

dete

ctio

n / l

iqui

d) T

herm

isto

r (p

ipe

tem

p.de

tect

ion

/ gas

)

Sw

itch

(2nd

dig

it ad

dres

s se

t)

Sw

itch

(con

nect

ion

No.

set)

Sw

itch

(for

mod

e se

lect

ion)

Sw

itch

(for

cap

acity

cod

e)

Sw

itch

(opt

ion

part

s)

Sw

itch

(for

mod

e se

lect

ion)

SW

4(I.B

) S

witc

h (f

or m

odel

sel

ectio

n)

SY

MB

OL

EX

PLA

NAT

ION

LS L

imit

switc

h (M

V b

uilt

in)

Sw

itch

(opt

ion

part

s)

SY

MB

OL

SY

MB

OL

S.B

Sur

ge a

bsor

ber

boar

d

X1,

X3,

X4

Aux

.rel

ay

N

AM

E

NA

ME

SW

5(A

.B)

Sw

itch

(for

vol

tage

sel

ectio

n)

PE

2 1

I.B

CN

2MZ

NR

CN

D

F

X1

X3

FAN

1

FAN

2

FAN

CO

N

CN

VC

NP

CN

TC

N60

CN

23C

N31

CN

21C

N20

CN

81

11

11

11

11

11

23

3

22

22

33

33

33

12

45

35

6

C

T

13

5

LEV

MV

DP

MF

LS

DS

TH

22

SW

3S

W4

SW

2

SW

1

13

CN

3T

A.B

S

W14

(Con

nect

ion

No.

)

6 5 4 3 2 178

SW

12(2

nd d

igit)

CN

29 12

TH

23

12

34

SW

AS

WC

1 2 3 4C

N42

TH

21

SW

11(1

st d

igit)

L N

S(S

HIE

LD)

M2

12

34

56

87

(Red

)(B

lack

)(W

hite

)

ZN

R1

31C

N1

DS

A1

S.BM

1

CN

82

CN

62

21

56

SW

5

1 2 3

(Whi

te)

(Whi

te)

(Red

)

(Red

)

12

(Gre

en)

(Whi

te)

1

MF

1C1

MF

2

C2

F E DCBA

9

09 8 7

65

432

19

01

2 3 45

6

78

0 8765432

1

TB

2

TB

5(T

RA

NS

MIS

SIO

N T

ER

MIN

AL

BE

D)

INS

IDE

SE

CT

ION

OF

CO

NT

RO

L B

OX

INS

IDE

SE

CT

ION

OF

TE

RM

INA

L B

ED

BO

X

X4

TO M

A R

EM

OT

E C

ON

TR

OLL

ER

TB

15 (

TR

AN

SM

ISS

ION

TE

RM

INA

L B

ED

)

12

CN

3A13

NO

TE

;1.T

B2,

TB

5 sh

own

in d

otte

d lin

e

a

re fi

eld

wor

k.

2.M

ark

i

ndic

ates

term

inal

bed

,

c

onne

ctor

,

boa

rd in

sert

ion

conn

ecto

r or

fast

enin

g co

nnec

tor

of c

ontr

ol b

oard

.

RE

MO

TES

WIT

CH

CN

32

CENT

RALL

YCO

NTRO

LC

N51

REM

OTE

INDI

CATI

ON

CN

52

REFRIGERANT SYSTEM DIAGRAM6

Strainer (#100mesh)

Strainer (#100mesh)

Heat exchanger

Room temparature thermistor TH21

Gas pipe thermistor TH23

Liquid pipe thermistor TH22


Gas pipe

Flare connection

Gas pipe

PLFY-P20,25,32,40VLMD-E PLFY-P50VLMD-E

Liquid pipe

CapacityItem

ø 12.7 <1/2F> (R410A)ø 15.88 <5/8F> (R22,R407C)ø 12.7 <1/2F>

ø 6.35 <1/4F> ø 6.35 <1/4F> (R410A)ø 9.52 <3/8F> (R22,R407C)

Gas pipe

PLFY-P63,80VLMD-E PLFY-P100,125VLMD-E

Liquid pipe

CapacityItem

ø 15.88 <5/8F> (R410A)ø 19.05 <3/4F> (R22,R407C)ø 15.88 <5/8F>

ø 9.52 <3/8F> ø 9.52 <3/8F>

13

7 TROUBLE SHOOTING

7-1. Simple check of main components

Motor terminalor

Relay connector

Red-Black 40.5ΩWhite-Black 48.8Ω

11

22

33

Red

White

Black

Relay connector

Protector

Check points

Measure the resistance between the terminals using a tester.(Surrounding temperature: 20˚C to 30˚C)

Measure the resistance between the terminals using a tester. (Surrounding temperature: 20°C)

Measure the resistance between the terminals using a tester.

Parts nameRoom temperaturethermistor (TH21)

Disconnect the connector, then measure the resistance using a tester.(Surrounding temperature 10°C to 30°C)

(Refer to the thermistor)

Liquid pipe thermistor (TH22)

Gas pipe thermistor (TH23)

Normal

4.3kΩ~9.6kΩ

Abnormal

Open or short

Normal

572Ω (Model:20~100)

430Ω (Model:125)

Abnormal

Open or short

Normal(2)-(6)

Yellow-Blown(1)-(5)

White-Red(3)-(5)

Orange-Red(4)-(6)

Blue-Brown

Abnormal

Open or short

Measure the resistance between the terminals using a tester.

0˚C/6.0kΩ,10˚C/3.9kΩ20˚C/2.6kΩ,25˚C/2.2kΩ30˚C/1.8kΩ,40˚C/1.3kΩ

Linear expansionvalve

Drain sensor

Drain-pump

Disconnect the connector then measure the resistance valve using a tester.(Surrounding temperature: 20°C)

150Ω±10%

White

Yellow

Orange

Blue

Red

Brown

123456

CN60

1

3

Red

Red

1

3

LEV

517.6Ω(1)-(2) White-Black(1)-(3) White-Blue

369.6Ω420.6Ω 310.1Ω

(1)-(4) White-Red 352.2Ω 268.9Ω(1)-(5) White-Orange 304Ω 229Ω(1)-(9) White-Yellow 547Ω 431Ω

411Ω366.4Ω328.7Ω290Ω521Ω

462.5Ω397.7Ω341.8Ω308Ω553Ω

50, 63 80 10020 to 40

Measure the resistance between the terminals using a tester. (Surrounding temperature: 20°C to 30°C)

Vane motor

Fan motor

Fan motor

Disconnect the connector and measure the resistance using a tester. (Surrounding temperature: 25°C)

Normal

CNT(1)~(3)

CN3T(1)~(3)

App.112.5Ω (Model:20~100)App.15Ω (Model:125)

App.1.2Ω (Model:20~100)App.4Ω (Model:125)

Model:20~100

Abnormal

Open or short

Normal1-21-31-41-5-

App.300Ω

Model:125 App.18kΩ

Abnormal

Open or short

Power transformer

9

7

5

4

3

2

1P

Relay connectorProtectorWhite

Black

Blue

Red

Orange

Brown

Yellow

Normal

125

Abnormal

Open or short

14

0

10

20

30

40

50

-20 -10 0 10 20 30 40 50

< Thermistor for lower temperature >

Temperature (˚C)

Res

ista

nce

(KΩ

)

4 ø4

3

6

5

ø3

2 ø2

1 ø1

ø4

ø3

ø2

ø1

Controller board

Drive circuit

Connector(CN60)

DC12V

Brown

Red

Blue

Orange

Yellow

White

M

4

6

2

3

51

Blue

Brown

Yellow

OrangeRedWhite


<Table of thermistor characteristics>

Table of thermistor resistance

Thermistor (piping temperature detection, room temperature detection)

Thermistor Ro = 15kΩ±3%B constant = 3480kΩ±2%

Thermistor R0=15kΩ ± 3%Fixed number of B=3480kΩ ± 2%

Rt=15exp 3480( )

0˚C 15kΩ10˚C 9.6kΩ20˚C 6.3kΩ25˚C 5.2kΩ30˚C 4.3kΩ40˚C 3.0kΩ


Operation summary of the linear expansion valve.• Linear expansion valve open/close through stepping motor after receiving the pulse signal from the indoor controller board.• Valve position can be changed in proportion to the number of pulse signal.<Connection between the indoor controller board and the linear expasion valve>

1273+t

1273

15

Output(Phase)

Output

ø1

1

ON

ø2 ON

ø3 OFF

ø4 OFF

2

OFF

ON

ON

OFF

3

OFF

OFF

ON

ON

4

ON

OFF

OFF

ON

<Output pulse signal and the valve operation>

➁ Linear expansion valve operation

➂ Trouble shooting

D

A

E

B

C

Open

Extra tightning (80~100pulse)

Pulse number

1800 pulseOpening a valveall the way

Close

Val

ve p

ositi

on (

capa

city

)

654321

LED1kΩ

Symptom Check points

Operation circuit fail-ure of the microprocessor.

Disconnect the connector on the controller board, then con-nect LED for checking.

Pulse signal will be sent out for 10 seconds as soon as themain switch is turn on. If there is LED with lights on or lightsoff, it means the operation circuit is abnormal.

Countermeasures

Exchange the indoor con-troller board at drive circuitfailure.

Linear expansionvalve mechanism islocked.

Valve doesn´t closecompletely (thermis-tor leaking).

Wrong connection ofthe connector orcontact failure.

To check the linear expansion valve, operate the indoor unit infan mode and at the same time operate other indoor units incooling mode, then check the pipe temperature <liquid pipe

temperature> of the indoor unit by the out-door multi controller board operation moni-tor. During fan operation, linear expansionvalve is closed completely and if there aresome leaking, detecting temperature of thethermistor will go lower. If the detectedtemperature is much lower than the temper-ature indicated in the remote controller, it

means the valve is not closed all the way. It is not necessaryto exchange the linear expansion valve, if the leakage is smalland not making any trouble.

Thermistor(TH21)

Linearexpansionvalve

Motor will idle and make ticking noise when motor is operatedwhile the linear expansion valve is locked. This ticking soundis the sign of the abnormality.

Check the color of lead wire and missing terminal of the con-nector.

Exchange the linearexpansion vale.

Exchange the linearexpansion valve.

If large amount of refriger-ation is leaked, exchangethe linear expansion valve.

Disconnect the connectorat the controller board,then check the continuity.

Measure the resistance between the each coil (red-white,red-orange, brown-yellow, brown-blue) using a tester. It isnormal if the resistance is in the range of

Short or breakage ofthe motor coil of thelinear expansionvalve.

Closing a valve : 1 2 3 4 1Opening a valve : 4 3 2 1 4

The output pulse shifts in above order. 1. When linear expansion valve operation stops, all output phase

become OFF.2. At phase interruption or when phase does not shift in order,

motor does not rotate smoothly and motor will locks and vibrates.

When the switch is turned on, 2200 pulse closing valve signal willbe send till it goes to A point in order to define the valve posi-tion.

When the valve move smoothly, there is no noise or vibrationoccurring from the linear expansion valve : however, when thepulse number moves from E to A or when the valve is locked,more noise can be heard than normal situation.

Noise can be detected by placing the ear against the screw dri-ver handle while putting the screw driver to the linear expansionvalve.

150Ω 10%.

1:1800pulse at R410A outdoor unit. 2000pulse at the other outdoor unit.

1

16

17

7-2. FUNCTION OF DIP-SWITCH

1

2

3

4

5

6

7

8

9

10

1~6

1

2

3

1

2

3

4

1

2

3

4

5

6

7

8

9

10

Thermistor<Intake temperaturedetection>position

ON OFF

Filter crogging detection Provided Not provided

Filter life 2,500hr 100hr

Air intake Effective Not effective

Remote indication switching Thermostat ON signal indication Fan output indication

Humidifier control Always operated while the heat is ON Operated depends on the condition

Air flow st Low Extra low

Heat thermostat OFF Setting air flow Reset to SW1-7

Auto reset function Effective Not effective

Power ON/OFF Effective Not effective

Heat pump/Cooling only Cooling only Heat pump

Vane Available Not available

Vane swing function Available Not available

—

—

—

—

—

—

— —

— —

— —

—

— — —

— — —

—

—

—

—

— —

— —

— —

—

— — —

—

—

—

Heating

Demand

4K up Not effective

Not effective

Effective

Effective

ONOFF

1 2 3 4 5 6 7 8 9 10

1 2 3

1 2 3 4 5

ONOFF

<At delivery>

<At delivery>

<At delivery>SW4Unit

Selection

SW8

SW3FunctionSelection

FunctionSelection

SW2Capacity

codesetting

SW1Mode

Selection

Switch Pole Function

Built-in remote controller Indoor unit

Set while the unit is off.

<At delivery>Set for each capacity.

ONOFF

1 2 3 4 5 6 7 8 9 10

Model 20

ONOFF

1 2 3 4 5 6 7 8 9 10

Model 32

ONOFF

1 2 3 4 5 6 7 8 9 10

Model 25~100

ONOFF

1 2 3 4 5 6 7 8 9 10

Model 125

Model 20~100 Model 125


Set


while the unit is off.

Model 20~63 Model 80,100

Operation by switchRemarks

Note :The DipSW setting is effective during unit stopping ( remote controller OFF ) for SW1,2 and 3 commonly and the power souce is not required to reset.

1 2 3 4

ONOFF

<At delivery>

ONOFF

1 2 3

ONOFF

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

MODELS SW2 MODELS SW2 MODELS SW2

PLFY-P20VLMD-E

PLFY-P25VLMD-E

PLFY-P40VLMD-E

PLFY-P50VLMD-E

PLFY-P80VLMD-E

ONOFF

1 2 3 4 5 6

PLFY-P100VLMD-E

PLFY-P32VLMD-E

PLFY-P63VLMD-E

ONOFF

1 2 3 4 5 6

PLFY-P125VLMD-E

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

18

0

5

9

4

8 37

2

6

1

SW12

10

0

5

9

4

8 37

2

6

1

SW11

1

0

8

F

7

E

6

D 5C

4

B

3

A

2

9

1

SW14

0

5

9

4

8 37

2

6

1

SW120

5

9

4

8 37

2

6

1

SW11

0

8

F

7

E

6

D 5C

4

B

3

A

2

9

1

SW14

Operation by switchSwitch Pole Remarks

<At delivery>

<At delivery>

SW111st digitaddresssetting

SW122nd degitaddresssetting

Rot

ary

switc

h

SW14Connection

VoltageSelection

No.setting

Rot

ary

switc

h

Address setting should be done when networkremote controller (PAR-F25MA) is being used.

This is the switch to be used when the indoorunit is operated with R2 series outdoor unit asa set.

<At delivery>

2

1~4

SW5

SW7

If the unit is used at the 220V or 230V area,set

ON : 220, 230VOFF : 240V

the switch as ON.If the unit is used at the 240V, set the switchas OFF.

Address can be set while theunit is stopped.

Note:1

Note:1

Note:1

Note 1 : The DipSW setting is effective during unit stopping ( remote controller OFF ) for SW11,12,14 and 5.

ON

OFF

ON

OFF

ONOFF

1 2 3 4


<At delivery>ONOFF

1 2 3 4

<model: 20~100>

3

2

1

(Option)

(Standard)

SWC

123

(SWA)

0

5

9

4

8 37

26

1

SW12

10

0

5

9

4

8 37

2

6

1

SW11

1

0

8

F

7

E

6

D 5C

4

B

3

A

2

9

1

SW14

3

2

1

(Option)

(Standard)

0

5

9

4

8 37

2

6

1

SW120

5

9

4

8 37

2

6

1

SW11

0

8

F

7

E

6

D 5C

4

B

3

A

2

9

1

SW14

Address board

Address board

Address board

Address board

Operation by switchSwitch Pole Remarks

* As this switch is used by interlocking withSWC,refer to the item of SWC for detail

<At delivery>

<At delivery>

<At delivery>

<At delivery>

1~3SWA

Option

2SWCOption

SW111st digitaddresssetting

SW122nd degitaddresssetting

Rot

ary

switc

h

SW14Connection No.setting

Rot

ary

switc

h

When attach the optional high perfor-mance filter elements (filter casement)to the unit, be sure to attach it to theoption side in order to prevent the air-flow reducing.

Address setting should be done when networkremote controller (PAR-F25MA) is being used.

This is the switch to be used when the indoorunit is operated with R2 series outdoor unit asa set.

220V 240V

220V 240V

Address board

<At delivery>2

SW5VoltageSelection

If the unit is used at the 230V or 240V area,set the voltage to 240V.If the unit is used at the 220V, set the voltageto 220V.

Address can be set while theunit is stopped.

Note:1

Note:1

Note:2

Note:2

Note:2

Note 1:The DipSW setting is effective always after powering ( remote controller ON ) for SWA and SWC.2:The DipSW setting is effective during unit stopping ( remote controller OFF ) for SW11,12,14 and 5.

<model: 125>

19

20

8 DISASSEMBLY PROCEDURE

8-1.SERVICE PANEL and FILTER

OPERATING PROCEDURE

1. Removing the service panel (A) (Fig.1-1)

(1) Slide the service panel (A) in the direction of thearrow 1 while lifting it. ( depending on the localinstallation,the slide direction is reverse )

(2) After sliding, if it is opened in direction 2, the ser-vice panel (A) drops down as shown in Fig.1-2.

(3) Remove the service panel (A) from the two pins.(Be care-ful not to allow it to drop).

2. Removing the filter (Fig.1-2)

<Model 20~100>(1) Place fingers on the projection near the PUSH

mark on the filter, as shown in Fig. A. Removepanel frame with thumb, and press projectionswith other fingers to remove the hooks.

<Model 125>(1) Move the fixing claws (C) of the filter (B) in the

direction of the arrow 3.(Pull them while lifting them up.)

(2) After removing the fixing claws (C) of the filter (B)from the filter support plate (D), pull out the filter(B) in the direction of the arrow 4.

(Fig.1-1)

(Fig.1-2)

PHOTOS&ILLUSTRATIONS

(A) service panel

Inspectionpanel

Fig.A

Hooks

Press

(A)

(C)

(B)

(D)

<Model 20~100>

<Model 20~100>

<Model 125>

<Model 125>

Be careful removing heavy parts.

21

8-2.CONTROL BOX

OPERATING PROCEDURE

<Model 20~100>1. Remove the service panel and filter with the pro-

cedure explained in section 8-1.

2. Removing the control box cover (Fig.2-1).• Remove the fixing screws (one) of the control box

cover (A), and remove the cover.* At this stage, the following servicing is possible.1 Operation and check of the switches (listed below)

which are on the address board.• Rotary switches SW11, 12 Address setting• Rotary switch SW14 Branch port setting• Dip switch SW1 Function change 1• Dip switch SW2 Capacity setting• Dip switch SW3 Function change 2• Dip switch SW4 Model setting• Dip switch SW5 Option setting• Dip switch SW6 Model change • Dip switch SW7 Function change 3

2 Connection check and local connection of leadwires (listed below) which are connected to thecontrol box (B).• Power supply lead wire (Connected at the factory)• Drain pump lead wire (Connected at the factory)• LEV lead wire (Connected at the factory)• Panel vane motor lead wire (Connected locally)• Panel limit switch lead wire (Connected locally)• Drain pump trial operation connector

(Connected locally)• M-NET transmission lead wire (Connected at the factory)• MA remote controller transmission wire

(Connected at the factory)• Fan motor lead wire (Connected at the factory)• Intake air sensor lead wire (Connected at the factory)• Fluid piping sensor lead wire (Connected at the factory)• Gas piping sensor lead wire (Connected at the factory)

(• Humidifier lead wire)(• Auxiliary electric heater lead wire)

3 Control board exchange4 Condenser exchange5 Power supply transformer exchange6 Intake air sensor exchangeNote: The control PCB, capacitor and power trans-

former could fall off when removed.

(Fig.2-1)

(Photo.2-1)


(A) Control box cover


(B)

22

OPERATING PROCEDURE

<Model 125>1. Remove the service panel and filter with the pro-


2. Removing the connector cover (A).• Remove the fixing screws (two) of the connector

cover (A), and remove the cover. (Fig.2-2)* At this stage, the following servicing is possible. (It

is even possible with the filter attached.)1 Operation and check of the switches (listed below)

which are on the address board (B).• Rotary switches SW11, 12 Address setting• Rotary switch SW14 Branch port setting• Dip switch SW1 Function change (main)• Slide switches SWA, C Airflow rate change

2 Connection check and local connection of leadwires (listed below) which are connected to thecontrol box (C).• Power supply lead wire (Connected at the factory)• Drain pump lead wire (Connected at the factory)• LEV lead wire (Connected at the factory)• Panel vane motor lead wire (Connected locally)• Panel limit switch lead wire (Connected locally)• Drain pump trial operation connector (Connected

locally)

3. Removing the control box (C)(1) Remove the fixing screws (three) of the filter fixed

plate (D). (Fig.2-3)(2) Also remove the fixing screws (three) of the con-

trol box cover (F) and remove it. (Fig.2-4)* At this stage, the following servicing is possible.1 Operation and check of the switches (listed below)

which are on the control board.• Dip switch SW2 Capacity code setting• Dip switch SW3 Function change (auxiliary)• Dip switch SW4 Model code settingAnd the address board exchange.

2 Connection check of the lead wires (listed below)which are connected to the control box• Power supply lead wire• Remote control communication lead wire• Fan motor lead wire• LEV lead wire• Drain pump lead wire• Drain sensor lead wire• Intake air sensor lead wire• Liquid piping sensor lead wire• Gas piping sensor lead wire• Power supply transformer lead wire• Address board lead wire• Panel vane motor lead wire• Panel limit switch lead wire

(Fig.2-2)


(A)

(Fig.2-3)

(C)

(D)

(B)

(Fig.2-4)

Vane motor cover

(D)

(F)

(C)


23

OPERATING PROCEDURE

3. Removing the control box (C)(3) If the control box (C) fixing screws (two) are

removed, the control box (C) is left hanging fromthe main unit by the falling prevention claws.If thecontrol box (C) is lifted the claws are released andthe control box (C) can be lowered down.Also, inorder to completely lower the control box (C), it isnecessary to remove the following lead wire con-nectors.

(4) Remove the control box earth wire (green/yellow)from the control box (C), and remove the control box(C).

* At this stage, the following servicing is possible.1 Control board exchange2 Condenser exchange3 Power supply transformer exchange



Controlbox

ControlBoard

• Power supply lead wire connector (3P : White)

• Drain pump lead wire connector(3P : White)

• LEV lead wire connector (6P : White) • Panel vane motor lead wire connector

(4P : White)• Panel limit switch lead wire connector

(2 : Green)

• Remote control communication leadwire connector (2P : Blue)

• Drain sensor lead wire connector (5P : Red)

• Intake air sensor lead wire connector(2P : Red)

• Liquid piping sensor lead wire connector(2P : White)

• Gas piping sensor lead wire connector(2P : Black)

• Fan motor lead wire connector ·····motor side connector (Black)

(C)

Falling prevention claw

Earth wire (green/yellow)

(Photo.2-2)

(Photo.2-3)

(Photo.2-4)

(Photo.2-5)

8-3.Fan and fan motor

24

OPERATING PROCEDURE



2. Remove the two screws fixing the bell-mouth (A),and remove the bell-mouth A. (Fig. 3-1)

3. Remove the turbo fan mounting screw (one M8nut), and pull the turbo fan off the fan motor shaft.(Photograph 3-1)

Note: The turbo fan will come off the motor shaft whenthe mounting screw is removed, so take carenot to let turbo fan fall off when removing it.

4. Remove the lead wire retainer. (Two screws)(Photograph 3-3)

5. Disconnect the motor lead wire connector in thecontrol box.<In the case of model 80,100>

• Motor on the control box sideRemove the connector cover, and remove themotor lead wire connector.

• Motor on the opposite control box side(Photograph 3-1)(1) Remove the protection cover on the control box

side.(2) Remove the lead wire, pick the tab of the con-

nector, and push it into the motor side.

6. Remove the mounting nuts (four M5 nuts) fixingthe motor fixing leg and main body, and removethe fan motor together with the leg.(Photograph 3-3)

Note: The fan motor will come off the main body whenthe mounting screw is removed. It could fall off,so when removing, securely hold the fan motorand remove the mounting screws.

(Fig.3-1)

(Photo.3-1)

(Photo.3-3)


Hooks

(A) Bell-mouth

Tab

Lead wire

Protectioncover

Push into the opposite control box side.

Control box side

Tab

Mounting nut

Mounting nut

Lead wire retainer


(Photo.3-2)

25

OPERATING PROCEDURE



2. Removing the filter fixed plate (A)Remove the fixing screws (three) of the filter fixedplate (A) and remove it. (Fig.1)

3. Removing the under-fan-casing (C)Push the fixing claws of the under-fan-casing (C) and remove it.

4. Removing the fan motor (D)Remove the lead wire connectors which are connect-ed to the fan motor (D), and remove the motor fix-tures (E) (two for each motor. Each motor is screweddown in two.)

Note: There are no falling prevention measures forthe fan motor. In order to prevent the fan motorfrom falling when it is removed, the work is tobe performed by two people. (It is dangerous todo this alone.)

5. Removing the sirocco fan (F)Remove the fan motor shaft fixing screw (one foreach fan), and remove the sirocco fan (F).



(A)

(Fig.3-2)

Fixing claws (Four for each casing)

(C)

Fixing screw(E)

(F)(D)

(Photo.3-4)

(Photo.3-3)

26

8-4.Thermistor <fluid piping temperature detection, gas piping temperature detection>

OPERATING PROCEDURE


cedure explained in section 8-1.2. Remove the decorative panel frame.

(1) Loosen the four stepped screws fixing the panel,and suspend the panel frame. (Fig. 4-1)

(2) When the panel frame is pressed (or pulled) in thelongitudinal direction, the stepped screws willcome out of the key holes provided on the panelframe, and the panel frame will come off.

3. Remove the bell-mouth with the procedureexplained in section 8-3 .

4. Remove the control box.(1) Remove the control box cover with the procedure

explained in section 8-2.(2) Disconnect the following lead wire connectors

from the control box. (Photograph 4-1)• Power supply lead wire (CND, 5P: red)• Drain pump lead wire (CNP, 3P: blue)• Drain sensor lead wire (CN31, 3P: white)• LEV lead wire (CN60, 6P: white)• Vane motor lead wire for panel (CN7V, 7P: white)• M-NET transmission lead wire (CN2M, 2P: blue)• MA remote controller transmission lead wire

(CN3A, 3P: blue)• Fan motor lead wire (CN90, 9P: blue)• Fluid piping temperature sensor lead wire (CN21, 2P: white)• Gas piping temperature sensor lead wire (CN29, 2P, black)

(3) Loosen the two screw fixing the control box, andremove the control box.

5. Remove the drain pan. (Photograph 4-2)(1) Remove the two drain pan fixing plates B.

(One screw/plate)(2) Remove the two drain pan fixing plates C.

(Three screws/plate)(3) Remove the side frame reinforcement plate.

(One screw)(4) Loosen the rubber plug on the drain pan's

drainage socket, and drain out all water from thedrain pan.Note: Before removing the rubber plug, prepare a

bucket, etc., so that the drainage will becaught. The desk or floor should be coveredwith a sheet, etc., so that water will not geton it inadvertently.

(5) Pull down the drain pan.Note: Pull the drain pan out gradually by shifting

the front and back to the left and right. Thedrain pan is made of styrofoam, so take carenot to break it.

6. Remove the thermistor from the thermistor holderon the copper piping (fluid piping ... thin piping,gas piping ... thick piping). (Photograph 4-3)Note: Each thermistor has a notch on the tube to

drain out any water condensed in the pipingtube. That section comes to the very bottom. Atrap is provided so that the water will drip intothe drain pan. Thus, when replacing the thermis-tor, always set the trap at the original position.

(Fig.4-1)

(Photo.4-1)

(Photo.4-2)

(Photo.4.3)


Panel frameA

Control box

Fixing screw

Fixing plate B

Fixing plate CThermistor

Side frame reinforcement plate


27

OPERATING PROCEDURE



2. Remove the control box with the procedureexplained in section 8-2.

3. Removing the decorative panel frame (A)(1) Loosen the panel fixing stepped screws (four), and

the panel frame (A) is left hanging in midair.(Fig.4-2)

(2) The panel frame (A) is pushed (or pulled) in thelength direction, the stepped screws come out ofthe pear-shaped holes in the panel frame (A), andthe panel fame (A) can be removed.

4. Removing the drain pan (B)(1) Remove the screws which are fixing the drain pan

fixing plates (C) (two), and remove the plates.(2) Remove the drain pan falling prevention parts. (fix-

ing pin (D), fixing plate (E) and filter fixing plateinstallation plate (F).)

(3) Loosen the rubber plug (G) which in is the drainsocket of the drain pan (B), and drain the waterwhich is still in.

(4) Pull down the drain pan (B).

Note: Take it out by moving a little in all four direc-tions.The drain pan is made from poly-styrene.Handle it carefully so that it is notbroken.

5. Removing the partition plate (H).

Note: Take it out by moving a little in all four direc-tions. The partition plate is made from poly-styrene.Handle it carefully so that it is notbroken.

(Fig.4-2)


(A)


(C)

(E)

(F)

(B)(D)

(H)

(G)

(Photo.4-5)

(Photo.4-4)

28

OPERATING PROCEDURE

6. Removing the thermistorsRemove the thermistors (K and L) from the thermistor holders (I and J) which are installed on the steel pip-ing (liquid piping ····· fine piping, gas piping ····· thickpiping).



(B)

(H)

(J) (L)

(K)

( I )

(Photo.4-6)

(Photo.4-8)

(Photo.4-7)

29

8-5.THERMISTOR (Intake air temperature detection)

OPERATING PROCEDURE



2. Remove the control box cover with the procedureup to 3. (2) of 8-2.

3. Removing the thermistor(1) Remove the fixing screw (one) of the thermistor

installation plate (A), and pull down the thermistorwith installation plate.

(2) Remove the thermistor lead wire which is connect-ed to the control board.



(A)

(Photo.5-1)

30

8-6.DRAIN PUMP and DRAIN SENSOR

OPERATING PROCEDURE



2. Remove the decorative panel frame with the pro-cedure explained in section 8-4.

3. Remove the bell-mouth with the procedureexplained in section 8-3.


5. Remove the drain pan with the procedureexplained in section 8-4.

6. Remove the binding band on the drain hose con-nected to the drain pump.

7. The drain pump and drain sensor, fixed to thecover, are fixed to the main unit. Remove the twofixing screws and remove. (Photograph 6-1)




3. Remove the decorative panel frame,drain pan andpartition plate with the procedure up to 3.~5.of8-4.

4. Removing the drain pump(A)(1) Cut the drain hose fixing binder (C), which hose is

connected to the drain pump (A)(2) Remove the fixing screws (two) which fix the

bracket (E) to the unit fixtures (D), and remove thedrain pump (A) from the main unit.(Photograph 6-2)

(Photo.6-1)


Fixing screw


(D)(A) (E)

(C)(B)(Photo.6-2)

31

8-7.LEV and HEAT EXCHANGER

OPERATING PROCEDURE



2. Remove the decorative panel frame with the pro-cedure explained in section 8-4.

3. Remove the bell-mouth with the procedureexplained in section 8-3.


5. Remove the drain pan with the procedureexplained in section 8-4.

6. Remove the LEV drive motor with a double span-ner. (Photograph 7-1)

7. Remove the fluid piping connection flare, gas pip-ing connection flare, and then lower the unit bodyto remove the heat exchanger.(Photographs 7-2, 7-3)(1) Remove the two heat exchanger support plates A.

(One screw/plate)(2) Remove the heat exchanger support plate B. (Two

screws)(3) Remove the piping fixing plate C. (Two screws)(4) Slide the heat exchanger in the direction opposite

the piping, and remove it.

Note 1: Cover the control box, motor, drain pumpand LEV with cloth, etc., to protect themin case water should come in contactwhen washing the drain pan and heatexchanger.

Note 2: Do not drain the water used to clean thedrain pan and heat exchanger with therain pump. Drain it separately.

(Photo.7-1)


(Photo.7-2)

(Photo.7-3)

LEVDrive motor

Heat exchanger support plate A

Piping fixing plate C

Heat exchanger support plate B


32

OPERATING PROCEDURE




3. Remove the decorative panel frame, drain pan andpartition plate with the procedure up to 3.~5.of 8-4.

4. Removing the LEV driving motor (B)Remove the LEV driving motor (B) with a doublespanner.

5. Removing the heat exchanger (C)After removing the liquid piping connection flare (D)and gas piping connection flare (E), lower the unitand remove the heat exchanger (C).

(1) Remove the non-piping side frame (F).(Secured by seven screws.)

(2) Remove the side frames (G and H).(secured by seven screws each.)

(3) Remove the piping side frame (I) and the pipingfixing plate (J).(The frame (I) is secured by three screws and the piping fixing plate (J) by two screws.)

(4) Slide the heat exchanger (C) towards the non-pip-ing side, and remove it from the ceiling (K) hang-ing holes.



(J)

(B)

(H)( I )(E)

(A)

(F)(C)(K)(G)(D)

(Photo.7-4)

(Photo.7-5)

(Photo.7-6)

33

8-8.Vane motor

OPERATING PROCEDURE

1. Remove the metal cover. (Three screws)(Photograph 8-1)

2. Remove the vane motor cover.The vane motor cover can be removed by pushingit up with fingers.

3. Remove the two motor mounting screws.(Photograph 8-2)

(Photo.8-1)


(Photo.8-2)

Fixing screw Metal coverVane motor cover

Fixing screw Vane motor Fixing screw


HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

Issued in June 2004 MEE04K240Printed in Japan

New publication, effective June 2004Specifications subject to change without notice

http://planetaklimata.com.ua/proizvoditeli/kondicionery-mitsubishi-electric/

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