pud-p-ymf-c close control pfd-p-vm-a...

CONTENTS

1. Specifications1-1 Main Features1-2 List of Possible Combinations of Indoor and Outdoor Units1-3 Unit Specifications

2. Capacity Curves2-1 Cooling Capacity2-2 Cooling Input2-3 SHF Curves2-4 Correction by refrigerant piping length2-5 Operation limit

3. Sound Levels3-1 Noise Level3-2 NC Curves3-3 Fan Characteristics Curves

4. External Dimensions 5. Electrical Wiring Diagrams 6. Options 7. Refrigerant Circuit Diagram And Thermal Sensor 8. System Design

8-1 Piping8-2 Control Wiring8-3 Types of switch settings and setting methods8-4 Wiring and Address Setting (System Using MA Remote Controller)8-5 External input/output specifications

9. Air Conditioning the Computer Room9-1 Main Features of the Floor-Duct Air Conditioners9-2 Major Characteristics of Computer Room Air Conditioners9-3 Step-by-Step Plan for the Implementation of the Air-Conditioning9-4 Conditions for the Installation of Computer-Room Air Conditioners 9-5 Setting the Air conditioners9-6 Automatic Control of the Computer Room

10. Maintenance/Inspection10-1 Maintenance/Inspection Schedule

1122 444566 7788 9 12 15 16 171718182032 34343435363739 4040

Close controlPUD-P-YMF-CPFD-P-VM-A

····························································································································

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1. Specifications1-1.Main Features

1

(1) List of Models

<10HP System>

<20HP System>

PUD-P250YMF-C

10HP(Down flow): PFD-P250VM-A(-H)20HP(Down flow): PFD-P500VM-A(-H)

'-H' in the indoor units indicates that the unit pipes come out of the top of the unit (50/60Hz, fit to order). PFD-type indoor units cannot be connected to outdoor units other than the ones specified above. PFD-type indoor units and other types of indoor units cannot coexist in the same refrigerant system.

When using a PFD-P500VM-A as an indoor unit, connect 2 PUD-P250YMF-C outdoor units to eachindoor unit and operate with a built-in remote control for the indoor unit.1: Bold line indicates refrigerant piping (gas/liquid). This system consists of 2 refrigerant circuits.2: Indicates TB3-type transmission line that connects the indoor and outdoor units.

This system consists of 2 refrigerant circuits.3: Indicates TB7-type transmission line that allows the unit to communicate with the controller.

When using a PFD-P250VM-A as an indoor unit, connect an outdoor unit PUD-P250YMF-C to eachindoor unit and operate with a built-in remote control for the indoor unit.1: Bold line indicates refrigerant piping (gas/liquid). This system consists of one refrigerant circuit.2: Indicates TB3-type transmission line that connects the indoor and outdoor units.

This system consists of 1 refrigerant circuit.3: Indicates TB7-Type transmission line that allows the unit to communicate with the controller.

Outdoor Unit

Indoor Unit

Outdoor Unit

G-50APUD-P250YMF-C

Indoor Unit

PFD-P250VM-A

TB7 TB3 23

112V DC

M-NET

PAC-SC50KUA

UP

POWER RATING

MODEL

WEIGHT

SERIAL No.

2.11kg

POWER SUPPLY UNIT

MITSUBISHI ELECTRIC CORPORATION

PAC-SC50KUA

Outdoor Unit

PUD-P250YMF-C

Indoor UnitPFD-P500VM-A

TB7 TB3 2

1

TB3

PUD-P250YMF-C

TB73

G-50A

12V DC

M-NET

PAC-SC50KUA

UP

POWER RATING

MODEL

WEIGHT

SERIAL No.

2.11kg

POWER SUPPLY UNIT

MITSUBISHI ELECTRIC CORPORATION

PAC-SC50KUA

2

1-2. List of Possible Combinations of Indoor and Outdoor Units

Units

1: Refer to the following pages for detailed specifications of each unit.2: The values in the chart are as follows: Q, Total Capacity [kW]; W, Total Input [kW]; A, Total Electrical Current [A]; Power Factor [%].

They were measured at operation under the following conditions: Indoor Intake Temperature: 27˚CDB/19˚CWB, Outdoor Intake Temperature 35˚CDB with 7.5m of refrigerant piping.

Out

door

Uni

ts

Indoor Units

Down-flow Type

380-415V(50Hz)400,415V(60Hz)

20HP

380-415V(50Hz)400,415V(60Hz)

10HP

Model Name

Power Source

380/400/415V

Q

W

A

PUD-P250YMF-C

10HP

Unit Horse Power

Series Name PFD-P250VM-A(-H) PFD-P500VM-A(-H)

56.0

21.8

36.1/34.3/33.0

91

28.0

10.9

18.3/17.3/16.3

90Powerfactor

Air-

cool

ing

1-3. Unit Specifications

28.03N ~ 380/400/415V 50/60Hz

Capacity kWPower source

1

2

kWA

m3/minkW

kWA

kW

mm

dB(A)kg

Power inputCurrent

Fan Airflow rateType Quantity

Motor outputTypeMotor outputCrankcase heater

Compressor

Refrigerant / LubricantExternal finish

High pressure protection

InverterCompressor / Fan

External dimension

Protectiondevices

Refrigerant piping diameter Liquid / GasNoise level

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

Pipe length 7.5m, Height difference 0m2 It is measured in anechoic room.

Net weight

Operating temperature range

1715(H)990(W)840(L)

Propeller fan1850.38

Hermetic7.5

0.045 (240V)

R407C/MEL32Starting current 12

DC bus current protection, thermal switchø12.7 flare /ø28.58 Flange

Steel plate painting with polyester powder <MUNSELL 5Y8/1 or similar>

2.94MPa

231

Indoor:12˚CWB ~ 24˚CWBOutdoor:-15˚CDB ~ 43˚CDB(0˚CDB ~ 43˚CDB with outdoorunit at lower position)

8.414.0/13.3/12.8

PUD-P250YMF-C

Over current protection / Thermal switch

56

(1) Outdoor Unit

(2) Indoor Unit

3

3N~380-415V 50Hz / 3N~400-415V 60HzPFD-P500VM-A

56.0Power source

kWCooling capacity 1kWA

mmmmmmkg

m3/min

Pa

kWA

mm

mm

dB(A)

Power consumptionCurrentExternal finish

DimensionsHeightWidthDepth

Net weightHeat exchanger

Fan

TypeAirflow rateExternal staticpressure

MotorOutput

2

Type

Air filter

Refrigerant pipe dimension

Gas(Flare)

Liquid(Flare)

Drain pipe dimension

Note: 1 Cooling capacity indicates the maximum value at operation under the following conditions;Indoor 27˚CDB/19˚CWB, Outdoor 35˚CDB

2 Measured in an anechoic room.

Noise level (Lo-Mid2-Mid1-Hi)

3 phases induction motor

<5Y 7/1>1895

1,800800

480350Cross fin (Aluminum-plate fin and copper tube)

Sirocco fan 2Sirocco fan

ø 28.58 ø 28.58 2

ø 12.7 ø 12.7 2

1,200

320

120

3.7 5.560 75

64

5.09.5/9.0/8.7

PFD-P250VM-A

28.02.5

5.5/5.3/5.1

160

PP Honeycomb fabricStarting current

Rp159

4

2. Capacity Curves2-1. Cooling Capacity

0.6

0.7

0.8

0.9

1

1.1

1.2

1.3

1.4

1.5

-15 -10 -5 0 5 10 15 20 25 30 35 40 45

0.7

0.8

0.9

1

1.1

1.2

1.3

-15 -10 -5 0 5 10 15 20 25 30 35 40 45

Outdoor Temperature (˚CDB)

Rat

io

Outdoor Temperature (˚CDB)

Rat

io

Indoor Temperature (˚CWB)

Indoor Temperature (˚CWB)

15˚CWB

15˚CWB

12˚CWB

12˚CWB

17˚CWB

17˚CWB

19˚CWB

19˚CWB

24˚CWB

24˚CWB

21˚CWB

21˚CWB

2-2. Cooling Input

The correction curves indicate the values measured at the point where the compressor wasoperated at its maximum capacity.

indicates the standard value.

5

2-3. SHF Curves

Operation Temparature Range: Indoor : 12˚CWB~24˚CWB Outdoor : -5˚CDB~43˚CDB (RH : 30~80%)

Standard Point " " : Indoor : 27˚CDB/19˚CWB Outdoor : 35˚CDB/-

130% 120% 110% 100%

0.4

0.5

0.6

0.7

0.8

0.9

1.0

SH

F

90% 80% 70%

Standard Capacity Ratio

Indoor Temperature 24˚CDB

0.4

0.5

0.6

0.7

0.8

0.9

1.0

30 40 50 60 70 80

RH (%)

30 40 50 60 70 80

RH (%)

SH

F

130% 120% 110% 100% 90% 80% 70%

Standard Capacity Ratio

0.93Indoor Temperature 27˚CDB

6

2-4. Correction by refrigerant piping lengthTo obtain a decrease in cooling/heating capacity due to refrigerant piping extension, multiply by the capacitycorrection factor based on the refrigerant piping equivalent length in the table below.

Equivalent length = (Actual piping length to the farthest indoor unit) + (0.50 number of bent on the piping)m• How to obtain piping equivalent length

Coo

ling

capa

city

corr

ectio

n fa

ctor

1.0

0.9

0.8

0.7200 40 60 80 100 120 140

Piping equivalent length (m)

2-5. Operation limit

Indo

or te

mpe

ratu

re (

˚CW

B)

-15 0-5-10 5 10 15 20 25 30 35 40 451012

15

20

25

30

(Outdoor door temperature :0˚CDB~43˚CDB with outdoor unit at lower position in cooling mode.)

Outdoor temperature (˚CDB)

3. Sound Levels3-1. Noise Level

7

1m

1m

Measuredpoint

SeriesNoise Level

(dB [Type A])

PFD-P250VM-A 59

PFD-P500VM-A 64

(1) Outdoor Unit

(2) Indoor Unit

Measuredpoint

1m

1m

SeriesNoise Level

(dB [Type A])

PUD-P250YMF-C 56

8

3-2. NC Curves

3-3. Fan Characteristics Curves

260 280 300 320 340 360

Air volume (m3/min)

PFD-P250VM-A PFD-P500VM-A

0

100

200

300

400

500

600

700

140 150 160 170 180

Air volume (m3/min)

Tota

l sta

tic p

ress

ure

(P

a)

800rpm

900rpm

1000rpm

1100rpm

Internalresistance

: 50/60Hz, standard: 50/60Hz, with middle-high efficient filter box

: 50/60Hz, standard

Output 3.7kW

176144

Fan rotation speed

Internal resistance (middle-high efficient filter )

(Output 2.2kW)

0

100

200

300

400

500

600

700

800

900

1000

800rpm900rpm

1000rpm

1100rpm

Fan rotation speed1200rp

Internal resistance

Output 7.5kW

Output 5.5kW

288270 330 352

Standard

Tota

l sta

tic p

ress

ure

(P

a)

NC60

NC50

NC40

NC30

NC20

Approximate minimum audible limit on continuous noise

80

70

60

50

40

30

20

63 125 250 500 1000 2000 4000 8000

10

0OC

TA

VE

BA

ND

PR

ES

SU

RE

LE

VE

L (d

B)

0dB

=20

µPa

OCTAVE BAND CENTER FREQUENCIES (Hz)

PUD-P250YMF-C (External static

NC70

pressure 0Pa)

NC60

NC50

NC40

NC30

NC20


80

70

60

50

40

30

20

63 125 250 500 1000 2000 4000 8000

10

0OC

TA

VE

BA

ND

PR

ES

SU

RE

LE

VE

L (d

B)

0dB

=20

µPa


PFD-P250VM-A

High speed

(External static

NC60

NC70 NC70

NC50

NC40

NC30

NC20


80

70

60

50

40

30

20

63 125 250 500 1000 2000 4000 8000

10

0OC

TA

VE

BA

ND

PR

ES

SU

RE

LE

VE

L (d

B)

0dB

=20

µPa


High speed

pressure 120Pa) PFD-P500VM-A (External static pressure 120Pa)

9

4. External Dimensions

< Ac

cess

ory

>•

Refri

gera

nt (g

as) c

onn.

pip

e ···

······

·· 1

pc.

(The

con

nect

ing

pipe

is fi

xed

with

the

unit)

•Pa

ckin

g fo

r con

n. p

ipe

······

······

······

1

pc.

(Atta

ched

nea

r the

bal

l val

ve)

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ndui

t mou

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g pl

ate

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iring

mou

ntin

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ard

(Pai

nted

the

sam

e co

lor a

s th

e un

it bo

dy)

ø40

·································

1pc

. ø

33·································

1pc

. ø

27·································

1pc

.•

Tapp

ing

scre

w 4

1

0 ···

······

······

· 6

pcs.

Note

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ease

leav

e a

spac

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der t

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or u

nit

for t

he p

ipin

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you

conn

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om th

e bo

ttom

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se b

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refu

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lose

the

hole

of th

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pla

te b

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sem

ent)

,

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081

3

99

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Knoc

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ront

sid

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le fo

r th

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uppl

y>

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778

75

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Knoc

kout

hol

e<B

otto

m s

ide

hole

for

the

powe

r sup

ply>

ø27

Knoc

kout

hol

e<B

otto

m s

ide

hole

for

the

cont

rol w

iring

>

1715

512

50

Cros

ss s

ectio

n Y-Y

Y YNo

te1

215

1490

215

Knoc

kout

hol

e

Left

side

view

ø40

Knoc

kout

hol

e<L

eft s

ide

hole

for

the

powe

r sup

ply>

ø27

Knoc

kout

hol

e<L

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ide

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for

the

cont

rol w

iring

>Kn

ocko

ut h

ole

Left

pipi

ng h

ole

Conn

. pip

eø2

8.58

<bra

zed>

Refri

g. s

ervic

e va

lve (l

iqui

d)ø1

2.7<

flare

>

Refri

g. s

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eva

lve(g

as)

<fla

nge>

Fron

t view

Knoc

kout

hol

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ont p

ipin

g ho

le<F

ront

wiri

ng h

ole>

Serv

ice p

anel

Knoc

kout

hol

e

Righ

t sid

e vie

w

Air

inle

t

Air

inle

t

Air o

utle

t

Plan

e vie

wCr

oss

sect

ion

X-X

Rear

view

XX

4X2-

14X2

0 O

val h

ole

198237

Knoc

kout

hol

eBo

ttom

pip

ing

hole

<Bot

tom

wiri

ng h

ole>

80 73

160

25

40

910

840

15 880(bolt hole) 15

990

560(

bolt

hole

)

149

234

100

251

6075

8040

194

100 48

70

79 3116

580

PUD-P250YMF-C Unit : mm

10

< A

cces

sorie

s >

· Lift

ing

bolts

······

4pcs

.· R

efrig

eran

t (ga

s) c

onn.

pip

e (ø

28.

58 <

bra

zed

>)

······

1pc.

· Pac

king

for

flang

e···

···1p

c.· I

nsul

atio

n co

ver

for

flang

e···

···1p

c.· F

lare

nut

(liq

uid)

······

1pc.

· Hex

agon

al a

llen

key

······

1pc.

(

for

fron

t pan

el o

peni

ng/c

losi

ng)

1895

Pow

er S

uppl

y:W

hite

Ope

ratin

g: G

reen

Che

ck: Y

ello

wFa

ilure

: Red

Lam

p

Lifti

ng b

olts

200

or m

ore

200

or m

ore

800

55

Air

outle

t 1200

Ser

vice

spa

ce

A

600 or more

50

Not

e 1

Hol

e fo

r th

e po

wer

sup

ply

Hol

e fo

r th

e co

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l wiri

ng

Ref

rig. p

ipin

g (li

quid

) ø

12.7

< fl

are

>

Ref

rig. p

ipin

g (g

as)

< fl

ange

>

Air

Inle

t(A

ir F

ilter

)

MA

Rem

ote

cont

rolle

r

Con

trol

box

205

340

420

Indo

or U

nit

Air

inle

t

200400

120

210

(sup

plie

d w

ith th

e un

it)

Not

e1. F

or r

ight

-han

d-si

de p

ipin

g, th

e m

inim

um

spac

e of

200

mm

on

the

right

sid

e m

ust

be in

crea

sed

to a

min

imum

of 5

00m

m.

Not

e2. I

f a m

inim

um s

pace

of 8

80m

m is

sec

ured

, th

e pa

nel c

an fu

lly b

e op

ened

.

PFD-P250VM-A Unit : mm

11

Dis

char

ge a

ir ou

tlet h

eigh

tD

rain

wat

er

outle

t hei

ght

180

770

1050

1160

620

413

473

395

7015

100

319

90

260

210

110

192

292

90

15

7015

15

235

245

75

11

<Fr

ont>

Hol

e fo

r liq

uid-

pipe

-con

nect

ing<

ø27>

8-ø1

8

Hol

e fo

r po

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-sup

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line<

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ansm

issi

on li

ne<

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Dra

in p

ipe

end

conn

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g<R

p 1>

Hol

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Bol

t hol

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Dis

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air

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t<F

lang

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idth

22>

Bas

e m

easu

rem

ent

<V

iew

ed fr

om p

oint

A>

11

A

200

or m

ore

200

or m

ore

Ser

vice

spa

ce

Indo

or u

nit

Not

e 1

600 or more

Air

outle

t

Air

inle

t

Lam

p

120

400 200

Hol

e fo

r th

e po

wer

sup

ply

110

205

5050

50

340

MA

Rem

ote

cont

rolle

r

420

1895

1800

800

55

Ref

rig. p

ipin

g (li

quid

) ø

12.7

<fla

re>

NO

.1

Ref

rig. p

ipin

g (g

as)<

flang

e> N

O.2

Ref

rig. p

ipin

g (g

as)<

flang

e> N

O.1

Ref

rig. p

ipin

g (li

quid

) ø

12.7

<fla

re>

NO

.2

Hol

e fo

r th

e co

ntro

l wiri

ng

Con

trol

box

Lifti

ng b

olts

(sup

plie

d w

ith th

e un

it)

Air

inle

t(A

ir F

ilter

)

Pow

er S

uppl

y:W

hite

Ope

ratin

g: G

reen

Che

ck: Y

ello

wFa

ilure

1: R

edFa

ilure

2: R

ed

Not

e1. F

or r

ight

-han

d-si

de p

ipin

g, th

e m

inim

um

spac

e of

200

mm

on

the

right

sid

e m

ust

be in

crea

sed

to a

min

imum

of 5

00m

m.

Not

e2. I

f a m

inim

um s

pace

of 8

80m

m is

sec

ured

, th

e pa

nel c

an fu

lly b

e op

ened

.

< A

cces

sorie

s >

· Lift

ing

bolts

······

4pcs

.· R

efrig

eran

t (ga

s) c

onn.

pip

e (ø

28.

58 <

bra

zed

>)

······

2pcs

.· P

acki

ng fo

r fla

nge

······

2pcs

.· I

nsul

atio

n co

ver

for

flang

e···

···2p

cs.

· Fla

re n

ut (

liqui

d)···

···2p

cs.

PFD-P500VM-A Unit : mm

Hol

e fo

r ga

s-pi

pe-c

onne

ctin

g<ø

48>

Hol

e fo

r liq

uid-

pipe

-con

nect

ing<

ø 27

>

5050 50

110

370

186

370

218

100

270

340

7016

5070

1517

6015

319 41311

Bas

e m

easu

rem

ent

<V

iew

ed fr

om p

oint

A>

Disc

harg

e ai

r ou

tlet

<Flan

ge w

idth 2

2>

Disc

harg

e ai

r ou

tlet

<Flan

ge w

idth 2

2>

Bol

t hol

e

Hol

e fo

r ga

s-pi

pe-c

onne

ctin

g<ø

48>

Dra

in p

ipe

end

conn

ectin

g<R

p 1>

Hol

e fo

r tr

ansm

issi

on li

ne<

ø 60

>H

ole

for

pow

er-s

uppl

y lin

e<ø

60>

8-ø

18

Hol

e fo

r liq

uid-

pipe

-con

nect

ing<

ø 27

>

<Fr

ont>

11

75

245

235

15 1590

110

90

395

620770

Disc

harg

e ai

r ou

tlet h

eigh

tDr

ain

wate

r ou

tlet h

eigh

t

5. Electrical Wiring DiagramsPUD-P250YMF-C

12

FB4

Fan control board(Fancon board)

(5P)CNPOW

L3L2L1

1 542 3

F02 250VAC 6.3A FF03 250VAC 6.3A F

F01 250VAC 6.3A F

L1 L2 L3 N

ACCT -W

BOX BODY

CNE(2P)

21

N

34

21

3

12

45

BOX BODY

BOX BODY

High pressureswitch

Crank case heater(Compressor)

Diodestack

NoiseFilter

TerminalBlock

TerminalBlock

CNFC2(6P)

123456

circuitdetection

123456

N

L3

L2

L1

N

L3

L2

L1

Blue

Black

White

Red

NF

Blue

Black

Red

White

L1TB1B

BOX BODY

N

L3

L2

1 2 3 4

CN34(6P)

654321

123

CN38(3P)

X10

X05

SV2

63H

TH6

CN05(4P)

(6P)CNFC1

Control circuit board

Blu

e Red

Whi

te Bla

ck

Bro

wn

Red

Controller BoxInverter

BOX BODY

(INV board)Power circuit board

L2R7

MF1

(2P)CN30V

(2P)CNL2

(14P)CN15V2

(5P)CNLV2

(3P)CNTR

(5P)CNLV1

(3P)CN32

(3P)CNH

(2P)CN01

THHS

(8P)CN02

(3P)CN03

(3P)CNFAN

(7P)CNRS3

(6P)CNVCC2

(6P)CNVCC3

(2P)CNVCC4

(7P)CNRS2

X10

X01

X02

52C 3

2

1

65

1234567

12

1

432

2

9

3

87

1

6

2 1 2 3 1

43

2

21

1 2

123

BlackRed

Motor(Compressor)

V

MC1WU

White

CNTR1

1A F250VACF3

T01

R3

R2

C3

C2

DCL

+

+52C

R1 R5

C1

ZNR4+

-

--

DS

-

TB7

M2

M1TB3

controllerremoteIndoor andConnect to

YellowGreen/

Blue

Black

Red

White

PE

SLEV

L1

63HS

Red

Wh

iteB

lack

TH2 TH13 2 1

2A F250VACF1

L2

TB1A

CH1

LEV1

SV1

(MAIN board)

50/60Hz380/400/415V3N-Power source

L3

N

4:Compressor ON/OFF5:Trouble

N

12V

X01

X02

(2P)CNTH

(4P)CNVDC

3

(3P)CN52C

2

(3P)CNR(3P)

CNX10

1

(3P)CNS2

2 (5P)CNAC2

(5P)CN51

(2P)CNS1

1 3

(2P)CNVCC4

1

1

2

2

3

2

2

(3P)CN20

3

1

1

(3P)CN33

3

2A F250VACF01

1

5

3

2

2

4

1

3

65

5

1

432

2

1

3

54

4

32

5

1

67

32

1

12

2

18

1

7632 11

4

2 3

3

4

2

5

R6

PE

L3

1

L1

M1

M2

S

L2

Refer to the service handbookabout the switch operations.

CNDC1(4P)1 2 3 4

1 2 3 4 598761 2 3 4 5CNDR2(9P)

14131110 12

121011 131454321 6 7 8 9 54321 6 7 8 9

Yello

wO

rang

e

Pur

ple

Bla

ck

Whi

teG

ray

5

1234

Fan motor(Heat exchanger)

VW

N

UMF

U V W

P

N

Gate amp board(G/A board)

FB1

FB2

FB3

IPM

CNDR1(9P)

CN15V1(14P)

Ora

nge

Bro

wn

4

CNACCT(4P)

(5P)CNFAN

CN04

TH7TH8TH5

ACCT -U

Gre

en

Red

Wh

iteB

lack

LD

<SYMBOL EXPLANATION>

1 2 3 4

CN05(4P) (3P)

CNL

63LS

Red

Wh

iteB

lack

3 2 1

321(2P)CN06

TH9

21(2P)CN09

TH10

21

CN36(6P)

654321

X06SV3

Red

Wh

iteB

lack

LD

SymbolDCL

ACCT-U,W

52C

ZNR4 Varistor

DC reactor (Power factor improvement)Current Sensor

Magnetic contactor (Inverter main circuit)

N a m e

Fan motor (Radiator panel)MF1Solenoid valve (Discharge--suction bypass)SV1,SV2

Solenoid valve (Heat exchanger capacity control)

SV3

Symbol

Choke coil(Transmission)L2

Electronic expansion valve(Oil return)

63HS

LEV1

SLEV

High pressure sensor63LS Low pressure sensor

Electronic expansion valve (Sub-cool coil bypass)

IPM Intelligent power moduleTH1 Discharge pipe temp. detectThermistor

N a m e

TH5TH2

N a m eSymbol

OA temp. detectPipe temp. detect

liquid outlet temp. detect at Sub--cool coil

bypass outlet temp. detect at Sub--cool coil

TH8

TH7

TH6

Saturation evapo. temp. detectTHHSTH10

FB1~4

Symbol

High pressure liquid. temp.

N a m e

TH9

Compressor shell temp.Radiator panel temp. detect

Ferrite core

Aux. relayX1~10

Thermistor

Earth terminal

13

PFD-P250VM-A

B2

B1

BCA2

A1

AC21

54321C

N54

31 2 54C

N53

54321C

IFB

Pow

er s

uppl

y D

C12

~ 2

4V

Pow

er s

uppl

y

Failu

re o

utpu

tS

tatu

s ou

tput

Dis

tant

loca

tion

on/o

ff<w

ith v

olta

ge a

nd c

urre

nt>

LL

65

3

CN3A (C

N54)

TZ1

ZNR

FX0

6X05

X04

71

321

CN3T

31

13

31

15

53

3CNT

CND

CN70

FAN2

CN2MI.B

12

CN32

321

CN51

12

34

5

CN52

12

34

5

X03

31

CNV

CNP

13

X01

CN23 21

CN31 12

3

1

PE

Dis

tant

loca

tion

on/o

ff<n

o vo

ltage

or c

urre

nt>

(1st d

igit)

(2st d

igit)

CN

62

SW4

CN

424321

43

21

7 8

21

CN29

8 7 123456

A.B

SW2

SW3

65

43

22

21

11

654321

CN

81

CN20

CN21

CN

24C

N25

CN60

CN22 21

Z3

X11 2

21

21

TH

24

LEV

TH

21

TH

22

TH

23

6 5 4 3 2 1

SW14

SW12

SW11

CN

82S

W1

33P

1

33P

2

51F

Z1

52F

(250

V 5

A F)

F1

51F

52F

MF

L3

DC

24 to

30V

A1S B1

Pow

er s

uppl

y(N

o fu

se b

reak

er 2

0A)

3N~

380/

400/

415V

(50H

z)

4

00/4

15V

(60H

z)

Insi

de th

e co

ntro

l box

L2L1Z3

SW

8S

witc

h(no

rmal

/loca

l)

X11

L3LE

D d

ispl

ay(c

heck

)

LED

dis

play

(failu

re)

L1

LED

dis

play

(sta

tus)

L2

LED

dis

play

(pow

er s

uppl

y)L4

1 22 1 6 5 1 2

Indo

or u

nit

Con

trol w

iring

S.B

DSA1

CN1

1 3

F4(2

50V

1

A F)

ZNR1

ZNR2

N

TB

23

TB

22

TB

21

TB

5

TB

2

SH

IELD

FAN

over

cur

rent

det

ectio

n

RC

TB

15

Not

e:1.

The

dot

ted

lines

sho

w fi

eld

wiri

ng.

2.A

lway

s us

e od

d nu

mbe

rs fo

r th

e in

door

uni

t add

ress

.3.

Con

nect

the

tran

smis

sion

line

from

indo

or u

nit t

o ou

tdoo

r un

it w

hose

ad

dres

s eq

uals

he

addr

ess

of th

e co

nnec

ted

indo

or u

nit +

50.

4.C

onve

ntio

ns:

,te

rmin

al b

ed;

, c

onne

ctor

;

, boa

rd-in

sert

ion

conn

ecto

r or

fast

enin

g co

nnec

tor

of c

ontr

ol b

oard

.

Add

ress

(odd

)SWC

SWA

TB22

IFB

Term

inal

bed

for d

ista

nt lo

catio

n di

spla

y

Ther

mis

tor (

outle

t tem

p. d

etec

tion)

Ther

mis

tor (

pipi

ng te

mp.

det

ectio

n/liq

uid)

Ther

mis

tor (

pipi

ng te

mp.

det

ectio

n/ga

s)

Aux

iliar

y re

lay(

fan)

Aux

iliar

y re

lay(

fan

failu

re d

etec

tion)

<No

volta

ge o

r cur

rent

>

<With

vol

tage

and

cur

rent

>

TB21

Term

inal

bed

for d

ista

nt lo

catio

n on

/off

TB23

Term

inal

bed

for d

ista

nt lo

catio

n on

/off

RC

MA

Rem

ote

cont

rolle

r

TB15

Tran

smis

sion

term

inal

bed

Sym

bol

TB2

MF

I.B A.B

TB5

Ext

erna

l inp

ut/o

utpu

t boa

rd

Tran

smis

sion

term

inal

bed

Pow

er s

ourc

e te

rmin

al b

ed

Add

ress

boa

rdIn

door

con

trolle

r boa

rdFa

n m

otor

Nam

e

F1

Sw

itch

(2nd

dig

it ad

dres

s se

t)S

witc

h (1

st d

igit

addr

ess

set)

SW

C

Z333P

1,33

P2

F ZNR,

ZNR1

,ZNR2

T LEV

52F

51F

TH21

TH22

TH23

TH24

SW

11(A

.B)

SW

12(A

.B)

SW

14(A

.B)

SW

1(A

.B)

SW

2(I.B

)S

W3(

I.B)

SW

4(I.B

)

X11

Z1 L1 L2 L3 L4SW

8S

witc

h (n

orm

al/lo

cal)

LED

dis

play

(pow

er s

uppl

y)LE

D d

ispl

ay (c

heck

)LE

D d

ispl

ay (s

tatu

s)LE

D d

ispl

ay (f

ailu

re)

Aux

iliar

y re

lay(

chec

k)

Sw

itch

(for m

odel

sel

ectio

n)S

witc

h (fo

r mod

e se

lect

ion)

Sw

itch

(for c

apac

ity c

ode)

Sw

itch

(for m

ode

sele

ctio

n)

Sw

itch

(con

nect

ion

No.

set)

Ther

mis

tor (

inle

t tem

p. d

etec

tion)

Fuse

<5A

>

Ove

r cur

rent

rela

y (fa

n I/D

)C

onta

ctor

(fan

I/D)

Ele

ctro

nic

linea

r exp

an.v

alve

Tran

sfor

mer

Var

isto

r

Fuse

<6A

>

Floa

t sw

itch

Sw

itch

(out

let/i

nlet

tem

p.co

ntro

l)

F4Fu

se<1

A>

S.B

Sur

ge a

bsor

ber b

oard

1 23 4 5 6 7 80

8 7

65

432

19

1

2 3 45

6

7890

9ABCDEF0

14

PFD-P500VM-A

F4

(250

V 1

A F

)

(250

V 5

A F

) F

1

Pow

er s

uppl

y(N

o fu

se b

reak

er 3

0A)

3N~

380/

400/

415V

(50H

z)

4

00/4

15V

(60H

z)

21

S.B

DSA1

CN1

1 3

ZNR1

N B2B1BCA2A1AC21

54321

CN54

31 2 54CN

53

54321C

<with

vol

tage

and

cur

rent

>D

ista

nt lo

catio

n on

/off

<no

volta

ge o

r cur

rent

>

Dis

tant

loca

tion

on/o

ff

No1

.Indo

or u

nit

Con

trol w

iring

X11

X12

L41 2

Lam

p di

spla

y(c

heck

)

IFB

SW12

(2st

dig

it)

No2

.Fai

lure

out

put

No2

.Sta

tus

outp

ut

No2

.Indo

or u

nit

Con

trol w

iring

DC

24 to

30V

(1st

dig

it)SW

11

SW12

L LL

DC

24 to

30V

No1

.Sta

tus

outp

utN

o1.F

ailu

re o

utpu

tL

566

5

(2st

dig

it)

3

CN3A (CN

54)

(CN

54)

T

Z2

ZNR

FX0

6X0

5X0

4

71

321CN

3A

CN3T

31

13

31

15

53

3CNT

CN70

FAN2

CN2MI.B

2

12

TZ1

ZNR

FX0

6X0

5X0

4

71

321

CN3T

31

13

31

15

53

3CNT

CND

CN70

FAN2

CN2M

I.B1

12 321CN

32

CN32

321

CN51

12

34

5

CN52

12

34

5

CN51

12

34

5

CN52

12

34

5

X03

31

X03

31

CND

CNV

CNV

CNP

13

X01

CNP

13

X01

CN23

21

CN31

1

SW14

Insi

de th

e co

ntro

l box

123456

TH

23-2

TH

22-2

TH

21-2

LEV2

CN82

CN62CN

424321

43

21

7 8

8 7 123456

A.B

2

SW1

654321

CN81

CN62

SW4

CN42

4321

43

21

7 8

21

CN29

8 7 123456

A.B

1

SW2

SW3

65

43

22

21

11

654321

CN81

CN20

CN21

CN24

CN25

CN60

CN22

21

TH

24-2

Z3

X11 2

21

X12

12

2

CN25

CN24

1

SW3

SW2

SW4

12CN

22CN

60CN

21CN

20 11

12

22

34

56

CN29 1

2

CN31

12CN

23

TH

24-1

LEV1

TH

21-1

TH

22-1

TH

23-1

6 5 4 3 2 1

Z3

SW14

CN82

SW1

51F

Z1Z2

52F

51F

52F

MF

L3

Lam

p di

spla

y(s

tatu

s)

Powe

r sup

ply

DC30

V,AC

100/

200V

A1S B1

Pow

er s

uppl

y D

C12

~ 2

4V

L2L1

Z3

Lam

p di

spla

y(N

o2.fa

ilure

)

(1st

dig

it)

S A2

B2

SW11

L2

PELam

p di

spla

y(p

ower

sup

ply)

L1

Sw

itch(

norm

al/lo

cal)

L3

SW

8

L5

4 32 1 6 5 1 2

Lam

p di

spla

y(N

o1.fa

ilure

)

PE

TB23

TB22

TB21SH

IELD

1 23 4 5 6 7 80

8 7

65

432

10

91

2 3 45

6

7890

9ABCDEF

1 23 4 5 6 7 80

8 7

65

432

19

1

2 3 45

6

7890

9ABCDEF0

TB

5-1

TB

2

TB

5-2

FA

Nov

er c

urre

nt d

etec

tion

RC

SH

IELD

TB

15

Add

ress

(od

d)

Add

ress

(ev

en)

TB22

IFB

Term

inal

bed

for d

ista

nt lo

catio

n di

spla

y

Ther

mis

tor (

outle

t tem

p. d

etec

tion)

Ther

mis

tor (

pipi

ng te

mp.

det

ectio

n/liq

uid)

Ther

mis

tor (

pipi

ng te

mp.

det

ectio

n/ga

s)

Aux

iliar

y re

lay(

fan)

Aux

iliar

y re

lay(

fan

failu

re d

etec

tion)

<No

volta

ge o

r cur

rent

>

<With

vol

tage

and

cur

rent

>

TB21

Term

inal

bed

for d

ista

nt lo

catio

n on

/off

TB23

Term

inal

bed

for d

ista

nt lo

catio

n on

/off

RC

MA

Rem

ote

cont

rolle

r

TB15

Tran

smis

sion

term

inal

bed

Sym

bol

TB2

MF

I.B1,

I.B2

A.B

1,A

.B2

TB5-

1,-2

Ext

erna

l inp

ut/o

utpu

t boa

rd

Tran

smis

sion

term

inal

bed

Pow

er s

ourc

e te

rmin

al b

ed

Add

ress

boa

rdIn

door

con

trolle

r boa

rd

Fan

mot

or

Nam

e

F1

Sw

itch

(2nd

dig

it ad

dres

s se

t)

Sw

itch

(1st

dig

it ad

dres

s se

t)

SW

C

Z333P1

-1,-2,

33P2

-1,-2

F ZNR,

ZNR1

,ZNR

2

T LEV

1,2

52F

51F

SW

11(A

.B)

SW

12(A

.B)

SW

14(A

.B)

SW

1(A

.B)

SW

2(I.B

)

SW

3(I.B

)

SW

4(I.B

)

X11

~X12

Z1~Z

2

L1 L2 L3 L4SW

8S

witc

h (n

orm

al/lo

cal)

Lam

p di

spla

y (p

ower

sup

ply)

Lam

p di

spla

y (c

heck

)La

mp

disp

lay

(sta

tus)

Lam

p di

spla

y (N

o1.fa

ilure

)

Aux

iliar

y re

lay(

chec

k)

Sw

itch

(for m

odel

sel

ectio

n)

Sw

itch

(for m

ode

sele

ctio

n)

Sw

itch

(for c

apac

ity c

ode)

Sw

itch

(for m

ode

sele

ctio

n)

Sw

itch

(con

nect

ion

No.

set)

Ther

mis

tor (

inle

t tem

p. d

etec

tion)

Fuse

<5A

>

Ove

r cur

rent

rela

y (fa

n I/D

)C

onta

ctor

(fan

I/D)

Ele

ctro

nic

linea

r exp

an.v

alve

Tran

sfor

mer

Var

isto

r

Fuse

<6A

>

Floa

t sw

itch

Sw

itch

(out

let/i

nlet

tem

p.co

ntro

l)

S.B

Sur

ge a

bsor

ber b

oard

TH21

-1,T

H21-

2

TH22

-1,T

H22-

2TH

23-1

,TH2

3-2

TH24

-1,T

H24-

2

Lam

p di

spla

y (N

o2.fa

ilure

)

L5F4Fu

se<1

A>

SWA

SWC

SWC

SWA

Not

e:1.

The

dot

ted

lines

sho

w fi

eld

wiri

ng.

2.A

lway

s us

e od

d nu

mbe

rs fo

r th

e in

door

uni

t add

ress

.3.

Con

nect

the

tran

smis

sion

line

from

indo

or u

nit t

o ou

tdoo

r un

it w

hose

ad

dres

s eq

uals

he

addr

ess

of th

e co

nnec

ted

indo

or u

nit +

50.

4.C

onve

ntio

ns:

,te

rmin

al b

ed;

, c

onne

ctor

;

, boa

rd-in

sert

ion

conn

ecto

r or

fast

enin

g co

nnec

tor

of c

ontr

ol b

oard

.

12

3

33P1

-1

33P2

-1

12

3

33P1

-2

33P2

-2

ZNR2

15

6. Options

Description

PAC-TS75DFB

PAC-TS76DFB

PAC-TS70TB

PAC-TS72TB

P250

P500

P250

P500

Model Applicable capacity

High-efficiency filter 65% 2

High-efficiency filter90% 2

1 Used to connect Intake Duct . Use the filter supplied with the unit. 2 Requires square duct flange (High-Efficiency Filter).

PAC-TS60AF

PAC-TS62AF

PAC-TS65AF

PAC-TS67AF

P250

P500

P250

P500

Square duct flange(High-efficiency filter)

Square duct flange (Standard filter)1

16

7. Refrigerant Circuit Diagram And Thermal SensorPUD-P250YMF-C

HE

X2

HE

X1

TH

6

SV

3

CJ1

CJ2

63H

SV

1

SV

2

CV

2

CV

1

TH

1

ST

5

MA

SA

SLE

V

TH

7S

T4

LEV

1S

CC

Com

p

O/S

Drie

r

TH

10

CP

TH

8

CP

3

TH

5

ST

3

TH

9

TH

2

ST

2B

V2

Indo

or u

nits

ST

1B

V1

63LS

63H

S

8. System Design8-1.Piping

17

Outdoor Unit

L

L

H

A

Indoor

Sample Unit Connection

Maximum Pipe Length (L)

Maximum Height Difference Between Indoor and outdoor units (H)

Selecting Refrigerant Pipes

Adding the Refrigerant

Gas pipe: ø 28.58 2Liquid pipe: ø 12.7 2

A

Net length: under 120m, Total Length: under 150m

Under 50m (Under 40m if the outdoor unit is installed below the indoor unit. Under 15m if the outdoor temperature is under 10˚C.)

The outdoor unit is shipped with 8.5 kg of refrigerant. It does not include enough refrigerant for extra piping system. Use additional refrigerant for each refrigerant piping system (2 refrigerant circuits). Record the length of the pipe and the amount of the added refrigerant on the outdoor unit for services in the future.

Calculating the amount of refrigerant to be added

· The amount of refrigerant needed for additional piping depends on the diameter and the length of the added liquid pipes.

· Calculate the amount to be added as shown on the right, and add the refrigerant in that amount.

· Round up the figure under 0.1kg. (e.g. 11.06kg would be 11.1kg).

<The amount of refrigerant to be added>

Size of the liquid pipeTotal length of the pipe with a diameter of ø 12.7 0.12

(m) 0.12 (kg/m)

+ 2.0kg

(i.e.) When using a 120m pipe with a diameter of ø 12.7

120m 0.12kg/m + 2.0kg = 16.4 kg

CautionCharge Liquid Refrigerant

Filling the equipment with gas refrigerant will result in a power loss due to transformation of refrigerant in the tank.

8-2.Control Wiring

18

(1) Specifications of control wiring and maximum length of wiring

Transmission line is a type of control line. When the source of noise is located adjacent to the unit, the useof shield cable as well as moving the unit as far away from the noise source are recommended.

1 Transmission line (M-NET transmission line)

For multiple-refrigerant system

Length of transmission line

Facility type(noise level measurement)

No. of cable 2-core cable

Diameter Over 1.25mm2

Wiring specifications

All types of facilities

n/a

Shield cableCVVS · CPEVS

System component

Maximum length: 200mMaximum length of centralized control transmission line and Indoor/Outdoortransmission line via indoor/outdoor units: 500m maximum

Total length of indoor/outdoor transmission line

Cable type

8-3.Types of switch settings and setting methodsWhether a particular system requires switch settings depends on its components. Refer to the section “7-4Wiring and Address Setting” before conducting electrical work.Keep the power turned off while setting the switches. If settings are changed while being powered, thechanged settings will not register, and the unit may malfunction.

Symbol

Outdoor unit OC

Indoor unit

10HP has only the main controller

Main/sub controllers IC

Turn off the power to

Outdoor unit

Indoor and outdoor units

Unit

2 Remote control wiring

MA remote controller 1

No. of cable 2-core cable

Diameter0.3~1.25mm2

(0.75~1.25mm2) 2 3

Wiring specifications

VCTF · VCTFK · CVV · CVS · VVR · VVF · VCT

Maximum length: 200 mTotal Length

1: “MA remote controller” includes MA remote controller, Simple MA controller, and wireless remote controller. 2: Cables with a diameter of 0.75mm2 or smaller recommended for easier handling. 3: When connecting to simple remote controller terminal, use a cable with a diameter within the range shown in

the parenthesis.

Cable type

(1) Address setting

19

This system requires address setting. The range of address varies depending on the type of unit. Refer to“7-4 Wiring and Address Setting” for details.

(3) Choosing the temperature detection spot by indoor unit (Factory Setting: SWC “Standard”)

When using the suction temperature sensor, set SWC to “Option.”

(4) Setting the MA “Sub” controller

When using two remote controllers or running two indoor units as a group, one of the controllers must beset to “Sub” controller. No more than two remote controllers can be connected to a group.

(Factory setting: “Main”)Set the controller according to the following procedure. Refer also to the instructions manual supplied withthe MA remote controller.

Factorysetting

Indoor unitMain/subcontrollers 1

Symbol Setting method

IC

OC

00

00

Addresssetting range

01~50 2

51~100 2 3

Unit

Outdoor Unit

1: 10HP only has the main controller. 2: Avoid using the same address as the ones used by the indoor/outdoor units in another refrigerant system; choose a different

one in the range specified above. 3: When setting the address to 100, set the switch to 50.

Assign a number to all indoor units, starting with 1 and using sequential numbers. Use odd numbers for the top controller and even numbers for the bottom controller of the indoor units. Use odd numbers starting with 01 for 10HP system.

Add 50 to the address assigned to the indoor unit to which the outdoor or heat-source unit is connected.

(2) Setting the outdoor unit power-source switch connector (Factory setting: CN41 Connected)

Power supply switch unit

<When power-supply unit is not connected to the centralized control transmission line> Replace the power source switch connector CN41 with CN40 on only one of the outdoor units<When connecting the power-supply unit> Use CN41 as it is.

System component

Multiple-refrigerant system

Remote controller bodyDip switches

1

ON

2 3 4

Screwdriver

Remove the cover on the remote controller

Set Dip Switch No.1 on the remotecontroller to “OFF” (Main to Sub)

Insert a flat-head screwdriver in the groove shown in the picture, and move the screwdriver in the direction shown in the arrow.

8-4.Wiring and Address Setting

20

(1) System Using MA Remote Controller

Remarks Maximum Allowable Length

Control Wiring Diagram

<a. Indoor/Outdoor transmission line>Maximum Length (above 1.25mm2)

L1 200m

1. Use power supply connector (CN41) on the outdoor unit as is.

2. It is not necessary to ground the S terminal of centralized control transmission terminal board (TB7) on the outdoor unit.

OC

TB3TB7EA BA B S

51

IC

MA

TB5-1A B S

01

TB151 2

A1 B2

L1Use CN41 as is.

There is one indoor controller board inside indoor unit.

1 System with one indoor unit (10HP system)

21

Wiring and Address Setting

<a. Indoor/Outdoor Transmission Lines >Connect A, B terminals of indoor/outdoor transmission line terminal board (TB3) on the outdoor unit and A, B terminals of the Indoor/outdoor transmission terminal board (TB5). (Non-polar 2 wire) Only use shield line.

[Grounding the shield line]Connect the earth terminal of the OC and S terminal of the IC terminal board (TB5).

<b. Switch Setting >Set the address as follows.

MA remote controller Sub Controller

Main Controller

MA

MA

3

n/a

Main

Unit or Controller AddressSetting RangeS

teps Factory

SettingSetting Procedures

Indoor Unit

Outdoor Unit

Main Unit IC

OC

1

2

Remarks

51 ~ 100

Sub controller

01 ~ 50 00

00

Set the address for the controller at the top of the indoor unit. Start with "01" then use sequential odd numbers (i.e.01, 03, 05).

Add 50 to the address assigned to the indoor unit within the same refrigerant system.

Use dipswitch to set the controller as sub controller.

-

22




1. Use sequential numbers to set indoor unit address.2. Do not connect TB5s' of the indoor units that are

connected to different outdoor units with each other.3. Replace CN41 with CN40 on only one outdoor unit.4. Ground only one of the outdoor units' S terminal of

TB7 (centralized control transmission terminal).

<a. Indoor/Outdoor transmission line>Maximum Length (above 1.25mm2)

L1, L2 200m<b. Transmission line for centralized control>

Maximum length via outdoor unit (over 1.25mm2)L1 + L3 + L2 500m

NO

NO

OC

TB3TB7EA BA B S

51

IC

MA

TB5-1A B S

01

TB5-2A B S

TB151 2

A1 B2

02

OC

TB3TB7EA BA B S

52

L31

L1

L2

Use CN41 as is.

There are 2 indoor controller boards inside indoor unit.

Replace CN41 with CN40.

Conect

2 Unit with One Indoor Unit (20HP Systems)

23


<a. Indoor/Outdoor Transmission Lines >Connect A, B terminals of indoor/outdoor transmission line terminal board (TB3) on the outdoor unit and A, B terminals of the Indoor/outdoor transmission terminal board (TB5). (Non-polar 2 wire) Only use shield line.

[Grounding the shield line]Connect the earth terminal of the OC and S terminal of the IC terminal board (TB5).

<b. Transmission Line for Centralized Control >Connect A terminals of centralized control transmission line terminal board on each of the outdoor units with each other. Do the same with B terminals. Replace CN41 (power supply switch connector) with CN40 on only one OC.Only use shield line.

[Grounding the shield line]Connect S terminals of the TB7 of each of the outdoor units with each other. Connect the S terminal of TB7 on the outdoor unit whose CN41 was replaced with CN40 to the earth terminal of the electric box.

<c. Switch Setting >Set the address as follows.


Main Controller

MA

MA

3

n/a

Main


teps Factory


Indoor Unit

Outdoor Unit

Main Unit IC

OC

1

2

Remarks

51 ~ 100

Sub controller

01 ~ 49

00

00




-

Sub Unit IC 02 ~ 50

Add 1 to the address assigned to the main unit in the same room.

24






TB7 (centralized control transmission terminal).5. No more than two main and sub controllers can be

connected to the indoor unit in the same group. Disconnect the MA remote control wire from TB15 if

using more than 2 remote controllers.

<a. Indoor/outdoor transmission line >Same as (2).

<b. Transmission line for centralized control >Same as (2).

<c. MA remote controller wiring >Maximum allowable length (0.3 ~ 1.25mm2)

m1 + m2 200m

NONO

NO

OC

TB3TB7EA BA B S

51

IC

MA(Main)

TB5-1A B S

01

TB5-2A B S

TB151 2

A1 B2

MA(Sub)A1 B2

MAA1 B2

02

OC

TB3TB7EA BA B S

52

L31

L1

L2

Use CN41 as is

There are 2 indoor controller boards inside indoor unit.

Replace CN41 with CN40

Connect

m1m2

3 When connecting 2 MA remote controller to one indoor unit (20HP Systems)

25


<a. Indoor/Outdoor Transmission Line >Same as (2).

<b. Transmission Line for Centralized Control >Same as (2).

<c. MA Remote Controller Wiring >[When using 2 remote controllers]When using two remote controllers, connect terminals 1 and 2 of TB15 on the indoor unit to terminal board of MA controller(option). Set the connected MA remote controller (option) as sub controller (Refer to manual that came with MA remote

controller.)

<d. Switch Setting >Set the address as follows.


Main Controller

MA

MA

3

n/a

Main


teps Factory


Indoor Unit

Outdoor Unit

Main Unit IC

OC

1

2

Remarks

51 ~ 100

Sub controller

01 ~ 49

00

00


Add 50 to the address assigned to theindoor unit within the same refrigerant system.


-

Sub Unit IC 02 ~ 50

Add 1 to the address assigned to the main unit in the same room.

26






TB7 (centralized control transmission terminal).5. No more than two main and sub controllers can be

connected to the indoor unit in the same group. Disconnect the MA remote control wire from TB15 if

using more than 2 remote controllers.

<a. Indoor/outdoor transmission line >Same as (2).

<b. Transmission line for centralized control >Same as (2).

<c. MA remote controller wiring >Maximum allowable length (0.3 ~ 1.25mm2)

m1 + m2 + m3 200m

NO NO

OC

TB3TB7EA BA B S

51

IC

MA(Main)

TB5-1A B S

01

TB5-2A B S

TB151 2

A1 B2

02

OC

TB3TB7EA BA B S

52

OC

TB3TB7EA BA B S

53

IC

MA(Sub)

TB5-1A B S

03

TB5-2A B S

TB151 2

A1 B2

04

OC

TB3TB7EA BA B S

54

L31

L31

L1

m3

m1

Use CN41 as is.

There are two indoor controller board inside each indoor unit.

Replace CN41 with CN40.L1

L2

m2

Use CN41 as is.

L2


Connect Connect

4 When grouping 2 indoor units (20HP systems) with MA remote controller

27


<a. Indoor/Outdoor transmission line >Same as (2).


<c. MA remote controller line > When grouping units that use different refrigerants, set MA remote controller of one of the indoor units as sub

controller.[When grouping indoor units]When grouping indoor units, connect 1 and 2 terminals of both IC terminal boards (TB15) with each other (non- polar 2 line). Set MA remote controller of one of the indoor units as sub controller.

<d. Switch Setting >Set the address as follows.


Main Controller

MA

MA

3

n/a

Main


teps Factory


Indoor Unit

Outdoor Unit

Main Unit IC

OC

1

2

Remarks

51 ~ 100

Sub controller

01 ~ 49

00

00


Add 50 to the address assigned to theindoor unit within the same refrigerant system.


-

Sub Unit IC 02 ~ 50 Add 1 to the address assigned to the main unit in the same room.

28




NO

<a. Indoor/Outdoor Transmission Line >Same as (2).


<c. MA Remote Controller Line >Total Length (0.3 ~ 1.25mm2)

m1 + m2 + m3 + m4 + m5 200m

MA(Main)

TB151 2

A1B2

OC

TB3TB7EA BA B S

53

IC

MA(Sub)

TB5-1ABS

03

TB5-2ABS

TB151 2

A1 B2

04

OC

TB3TB7EA BA B S

54

OC

TB3TB7EA BA B S

51

IC

TB5-1ABS

01

L1Use CN41 as is

L31

m3

m1

There are two indoor controller boards inside indoor unit.

L1

L2

m2

Use CN41 as is.



Connect

1. Use odd numbers to set 10HP indoor unit address.2. When setting unit address for 20HP indoor unit, use

odd numbers for the top controllers and even numbers for the bottom controllers (main controller+1).

3. Replace CN41 (power supply switch connector) with CN40 on only one 20HP outdoor unit.

4. Ground the S terminal of TB7 (centralized control transmission terminal board) of only one of the 20HP outdoor units.

5. No more than two main and sub controllers can be connected to the indoor unit in the same group.

Disconnect the MA remote control wire from TB15 if using more than 2 remote controllers

5 When grouping multiple indoor units (combination of 10HP, 20HP systems)

29


NO

NO NOMA

TB151 2

A1B2

OC

TB3TB7EA BA B S

57

IC

MA

TB5-1ABS

07

TB5-2ABS

TB151 2

A1B2

08

OC

TB3TB7EA BA B S

58

OC

TB3TB7EA BA B S

55

IC

TB5-1ABS

05

L1Use CN41 as is

L31

m5m4

There are two indoor controller board inside indoor unit.

L1

L2

Use CN41 as is.



Connect


Main Controller

MA

MA

3

n/a

Main


teps Factory


Indoor Unit

Outdoor Unit

Main Unit(10HP, 20HP)

IC

OC

1

2

Remarks

51 ~ 100

Sub controller

01 ~ 49

00

00

Set the address for the controller at thetop of the indoor unit. Start with "01" then use sequential odd numbers (i.e.01, 03, 05).



-

Sub Unit(20HP)

IC 02 ~ 50 Add 1 to the address assigned to the main unit in the same room.

30

(2) System with MA remote controller and G-50A



<a. Indoor/Outdoor transmission line>L1, L2, L3, L4, L5, L6 200m

<b. Transmission Line for Centralized Control >L31 + L32 + L33 + L35 + L36 + L37 + L38 + L6 500mL1 + L31 + L35 + L36 + L37 + L38 + L6 500m

<c. MA Remote Controller Line >Total Length (0.3 ~ 1.25mm2)

m1 200m

1. Be sure to use odd numbers to set the address for indoor units (10HP).

2. To set the indoor unit address for 20HP, use odd numbers for the top controllers and use even numbers for the bottom controllers (Main controller plus 1).

3. Use the power supply switch connector (CN41) on the outdoor unit as is.

4. It is not necessary to ground the S terminal of transmission line terminal board for centralized controller on the outdoor unit.

5 No more than two main/sub remote controllers can be connected to the indoor unit in the same group. When more than two remote controllers are present in the system, disconnect MA remote controller from TB15 in the indoor unit.

6. Put both types of the addresses for P500-type indoor units in the same group when setting groups for indoor units with a remote controller.

NO

NO

MA

TB151 2

A1 B2

OC

TB3TB7EA BA B S

53

IC

MA

TB5-1A B S

03

TB5-2A B S

TB151 2

A1 B2

04

OC

TB3TB7EA BA B S

54

OC

TB3TB7EA BA B S

51

IC

TB5-1A B S

01

L1Use CN41 as is.

PowerSupply

A B S

G-50A

A B S

L32

L33

Option

DC power supply line(DC12V)

L35

m1

L2

L3

m1

Use CN41 as is.

Use CN41 as is.



L31

L36

1 System with multiple indoor units (10HP, 20HP)

31



Main Controller

MA

MA

3

n/a

Main


teps Factory


Indoor Unit

Outdoor Unit

Main Unit(10HP, 20HP)

IC

OC

1

2

Remarks

51 ~ 100

Sub controller

01 ~ 49

00

00

Set the address for the controller at thetop of the indoor unit. Start with "01" then use sequential odd numbers (i.e.01, 03, 05).



-

Sub Unit(20HP)

IC 02 ~ 50 Add 1 to the address assigned to the main unit in the same room.

NO

NO

MA

TB151 2

A1 B2

OC

TB3TB7EA BA B S

57

IC

MA

TB5-1A B S

07

TB5-2A B S

TB151 2

A1 B2

08

OC

TB3TB7EA BA B S

58

OC

TB3TB7EA BA B S

55

IC

TB5-1A B S

05

L4

L38

Use CN41 as is. Use CN41 as is.

Use CN41 as is.


m1


L5

L6

m1

L37

8-5.External input/output specifications

32

(1) Input/output specifications

(2) Wiring

Function Usage Signals Function Usage Signal

Input

Start/stop Turning ON/OFF the indoor unit

Pulse(a-contact with voltage/without voltage) 1

<With voltage> Power Source: DC12~24V Electrical Current: Approximately 10mA (DC12V)

<Standard Pulse>

Output

No.1OperationStatus

Obtaining signals indicating operation status of indoor units in each refrigerant circuit.

Relay a-contact output DC 30V or AC 100V/200V

Standard Current : 1AMinimum Current : 1mA

No. 1Error Status

Obtaining signals indicating error status of indoor units in each refrigerant circuit.

No. 2OperationStatus

Obtaining signals indicating operation status of indoor units in each refrigerant circuit.

No. 2Error Status

20HP only

Obtaining signals indicating error status of indoor units in each refrigerant circuit.

over 200ms

1 Use minute-current contact (DC12V 1mA)

External input/output board

Power Source for Display

No.1 Operation Status

No.1 Error Status

No.2 Operation Status

20HP only

No.2 Error Status

Common

Stop/Start

Input with voltage (polarized)

Input without voltage

Relay Contact Point Output

Stop/Start

External power source

Connection to terminal board Connection with connectors

L1

L2

L3

L4

SW12

Short Circuit

SW11

CN53

1

2

3

4

5

1

2

3

4

5

TB21

TB22

TB23

XA

XB

XC

XEXD

XE

XD

XC

XB

XACOM

1

2

BC

B1

B2

AC

A1

Short Circuit

A2

3

4

5

CN54

Maximum : 100 m

<Input with Applied Voltage (polarized)>DC12~24VElectrical current input (per contact)Approximately 10mA (DC12V)

SW12Remote start/stop switchEach pressing of the SW (Pulse input) switches between ON and OFF.

Remote start/stop Each pressing pf the SW (Pulse input) switches

between ON and OFF.

External powesource

<Input without voltage applied>

Minute-current contact: DC12V 1mA

SW11

<Relay contact output>DC30V 1AAC220-240V 1A

No.1 Operation Status Indicator LampL1

No.1 Error Status Indicator LampL2

Power supplyfor displays

No.2 Operation Status Indicator LampL3

No.2 Error Status Indicator LampL4

Relay(Permissible Electrical Current: 10mA~1A)

XA~XE

Setting on the Indoor UnitConfirm the following setting when using external input.1 No.1, No.2 Controller board Dip SW 3-8: ON (Factory Setting: ON; External input will not be available when OFF.)2 No.1, No.2 address board Dip SW 1-10: OFF (Factory Setting: OFF; External input will not be available when ON.)3 Normal/Local switch inside the unit controller box is set to “Normal.” (Factory Setting: Normal; External input will not be

available when it is set to “Local.”)

33

(3) Wiring Method

1 Check the indoor unit setting (Refer to 7-5.(2) Wiring )2 When using the external output function, connect each signal line to External output Terminal (TB22)

on the unit, depending on the usage.3 When using external input function, peal the outer layer of the signal line off, and connect it to external

input terminal (TB21 or TB23) on the unit, depending on the usage.

54

32

1CO

MB2

B1BC

A2A1

AC

TB23TB21

TB22

CN

53C

N54

1

1

Fix the wire on the high-voltage (AC220-240V) clamp. Pull the wire through the hole for transmission line to outside the unit. 3

Fix the wire on the low-voltage (below DC30V) clamp. Pull the wire through the hole for transmission line to outside the unit. 2

To CN51 of No.1 board

To CN51 of No.2 board

Wiring inside the unit

Wiring On Site

1 20HP indoor unit is shipped with B1 and B2 terminals of TB21 and A1 and A2 terminals of TB23 short-circuit-ed respectively. When connecting wire to those terminals, do not eliminate this feature. If it is eliminated, theunits in one of the 2 refrigerant circuits may not operate.

2 Do not bundle with high-voltage (AC220-240V) wire, since noise interference from such wire may cause theunit to malfunction.

3 Do not bundle with minute-voltage (DC30V or below) wire, since noise interference from such wire may causethe unit to malfunction.

Caution1) Wiring should be covered by insulation tube with supplementary insulation.2) Use relays or switches with IEC or equivalent standard.3) The electric strength between accessible parts and control circuit should have 2750V or more.4) TB21 is a terminal specifically for No-voltage contact point input. Do not apply voltage to TB21, since it

must result in malfunction of indoor unit controller board.5) TB23 is specifically for contact point input with voltage. Check the polarity before connecting to avoid

damage to the unit.6) Keep the wires on the input side and on the output side away from each other when using AC220-

240V as a power source for displays.7) Keep the length of the extension part of external signal line under 100m.8) 20HP is shipped with B1 and B2 terminals of TB21 and A1 and A2 terminals of TB23 short-circuited

respectively. Do not eliminate this feature. If it is eliminated, the units in one of the two refrigerant circuits may not operate.

34

9. Air Conditioning the Computer Room9-1 Main Features of the Floor-Duct Air Conditioners

9-2 Major Characteristics of Computer Room Air Conditioners(Constant Temperature · Constant Humidity)

Filter

Free-access top floor

Ceiling

Com

pute

r

This system is installed by building a floor over an existing floor and using the space between these two floors as an air-conditioning duct.This system has the following characteristics:

1 The temperature and humidity can efficiently and reliably be controlled, since the air-conditioned air issent directly to the machine.

2 It provides a comfortable environment for the operator, since the air can be conditioned to best suit theneeds of the operator and machines.

3 It is favorable in terms of appearance because the air-conditioning duct is out of sight.

4 The location of the duct is irrelevant when considering adding new machines or rearranging the existingmachines, since the entire floor serves as the air duct.

(1) Unlike plenum ventilation and overhead-duct type conditioners, since the conditioned air is not mixedwith the air in the room, the air that comes out of the unit has to meet the predetermined conditions(constant temperature/constant humidity) at the time the air exits the unit.Close attention must be paid to the auto-controlling system.

(2) Dust in the duct space (between the free-access top floor and the existing floor) must be thoroughlyremoved before installing the unit.

(3) Since the existing floor is cooled by the unit, it may produce dews on the ceiling of the room downbelow.

A computer-room air conditioner is a device that is used to maintain certain temperature and humidity inthe room. Especially, floor-duct conditioners must be able to provide air that meets predetermined require-ments. In this unit, the compressor works year around. To respond to the change in temperature, thecapacity control compressor regulates the temperature. Since this unit does not ship with a humidifier,humidity is controlled with the use of a humidifier installed in the room.

Caution

9-3 Step-by-Step Plan for the Implementation of the Air-Conditioning

35

Basic Conditions

Securing Necessary Rooms

Decision to Install the Air-Conditioning System

Selecting the Air-Conditioner Model

Selecting the Controllers

Total System Air-conditioning operation panel (secure individual operation circuit), Auto Controller (temperature and humidity indicator/recorder), management, safety, laws, maintenance, earthquake proof, anti-vibration (floor load, anti-vibration device), noise control, etc.

Calculating the Load

Setting the Conditions for the Room

Temperature/humidity Condition

Purpose Making decisions on the computer system

Accommodates possible future expansion (ensuring the acquisition route)

Operation schedule

Back-up system (in case of breakdowns, power outage, water-supply cut offs etc.)

Air conditioning methods (continuous, floor-duct type etc.)

Computer room, CVCF room, MT Disk Storage room

Supplementary computer room, system surveillance room

Programmer room, operator room

Battery room, transformer room

9-4 Conditions for the Installation of Computer-Room Air Conditioners

36

Computer

Fan

Air conditioner

Air intake

Free-accessfloor

Air discharge

(1) Outdoor Temperature and Humidity

Generally the values set for general air conditioners are used, although the value higher than the maxi-mum outdoor temperature and humidity may be set for devices like computer-room air conditioners thatmust keep the air temperature and humidity under predetermined levels.

(2) Indoor Temperature and Humidity

There is a wide range of conditions set by different computer manufacturers, and the conditions need tobe set in consultation with the manufacturers. The most basic conditions include keeping dew condensa-tion and static electricity from forming. It is also necessary to keep the room free of dust to ensure asmooth operation of the computer.

(3) Matching the Volume of Air Flow

It is possible to use the fan on the computer to cool the room. This controlling method requires a certainvolume of cold air in proportion to the amount of heat produced by the device. The inlet panel is located atthe bottom of the unit, and the exhaust pipe is located either on the ceiling, front and back, or on the side.

(4) Considering a Back-up Air Conditioning System

When the system is not allowed to stop at all, a back-up system is necessary.There are several different options for a back-up as the following:

1 Installing two sets of air conditioning systems necessary for the computer.2 Utilizing regular office air conditioners (for people)3 Using one of the units as a back-up

1 is used infrequently due to high costs involved. 2 involves many technical problems such as the difference between preset conditions for computer rooms and office rooms. In general, 3 is a preferredmethod. If 3 is chosen, the unit method (package method) is more economical than the central method.

9-5 Setting the Air conditioners

37

20.9kW

5

20W/m2

60Hz

Computer-generated heat

Number of workers

Lighting

Temperature and humidity

Frequency

Indoor ˚CDB/Indoor WBT : 24˚C/17˚C˚CDB of the air going into the computer : 18˚C

(1) Air-Conditioning Load

(2) Sample Selection of Air Conditioners

(2-1) Conditions

Windows

Inside Measurement

Surroundings

(W: 4.5m, H: 1.5m) 2

Ceiling height 2.2m

Upstairs room, downstairs room, heat and air conditioning

(2-2) Building Conditions

1 Coefficient of Overall Heat Transmission U (W/m2 ·K)

Summer 3.6, Winter 3.8

2.05

Summer 5.93, Winter 6.5

Floor (free access)

Outer Walls

Inner Walls

Ceiling

Floor

Windows

Downward convection 3.36, upward convection 3.3



2 Internal Load

1 Once the floor plan is made and the conditions for the air-conditioning system are set, air conditioningcapacity has to be determined by calculating the load.

2 Unlike the outdoor air, computer load remains constant throughout the year. However, it is possiblethat there are considerable fluctuations within a day. This is due to the fact that, depending on the timeof the day, there are changes in the number of computers that are turned on and that the differentcomputer systems are in operation.

3 If there is a plan to expand the current computer system in the future, it is important to include theload for the units to be added in the future when calculating the thermal load because it is practicallyimpossible to keep the computers off for days on end during the installation of the new units.

4 The following items need to be checked before calculating the unit capacity:· Floor area of the computer room (m2)· Total quantity of heat generated by computers

Number of People in the Room 5 Lighting 20W/m2

Calculator 20.9kWDraft 0.2 times/h

3 Volume of Outdoor Air Intake

25m3/h·person

Window

(2-3) Calculating the Load and Selecting a Model

38

1 Load (in the summer with air-conditioning)

2 Necessary Air Circulation

3 Model Selection

< Sensible Heat > SH

< Latent Heat > LH

Total load is 28.8kW

Computer

Lighting

Number of people in the room

Infiltration draft

Outer wall (heat transmission)

Windows (radiation)

Windows (heat transmission)

Inner wall(heat transmission)

Outside air

1,800W

5 persons 64 (U)

(0.2 times/h) 39.6m3 0.336 8

8.5m2 3.6 8

13.5m2 0.65 188

13.5 5.93 8

61.6 2.05 4

125m3 0.336 8

20.9 kW

1.8 kW

0.32 kW

0.11 kW

0.25 kW

1.91 kW

0.64 kW

0.5 kW

0.34 kW

26.8 kWTotal

Infiltration draft

Number of people in the room

Outside air

39.6 834 0.0117

5 persons 82

125m3 834 0.0117

0.39 kW

0.41 kW

1.22 kW

2.0 kWTotal

26800

0.336 (24 -18)V = ÷ 60 = 221m3/min

Calculate the temperature difference by setting the outdoor temperature; then, calculate hourly loads.The chart shows the result of a calculation, supposing that the system reaches its highest load at 12 o'clock.Outdoor temperatures in this example Summer : 32˚CDB relative humidity 60%

Winter : -2˚CDB relative humidity 42%

PUY-P250YMF-C 2, PFD-P500VM-A typeIndoor ˚CDB 24˚C / Indoor ˚CWB 17˚C outdoor ˚CDB 32˚CCapacity of the Moment 51.5kW SHF = 0.92Capacity of Sensible Heat 51.5 0.92 = 47.4/kWStandard Air-Flow Volume: 320m3/min can be accommodated with PUY-P250YMF-C 2 and PFD-P500VM-A.

9-6 Automatic Control of the Computer Room

39

12

< Outdoor Unit >

Free-Access Floor

< Indoor unit >IntakeThermistor

Discharge Thermistor

No2

TB7

RA

SA

TB3No1

TB7

TB3

Controller

Terminal Bed forExternal Input/Output

Remote Controller

ExamplePFD-P560VM-A automatically controls the cooling temperature with a built-in controller.(suction temperature or discharge temperature control)This unit is designed for high sensible-heat specifications, and it does not include a humidifier or a dehumidi-fier. Install such components as necessary.

1 Bold lines in the diagram indicate refrigerant piping (gas/liquid).This system consists of 2 refrigerant circuits.

2 Indicates TB3-type transmission line used to communicate with the indoor unit.This system is made up of 2 circuits.

10. Maintenance/Inspection10-1. Maintenance/Inspection Schedule

40

Indo

orO

utdo

or

Fan Motor 6 months 40000 hours Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

YesYes

Yes

Bearing 6 months 40000 hours

Fan Belt 6 months 8000 hours

Air Filter 3 months 5 years Yes

Drain Pan 6 months 8 years

Add lubricant once a year

Disposable parts

Maintenance schedule changes depending on the local conditions

Drain Hose 6 months 8 years

Linear Expansion Valve 1 year 25000 hours

Heat Exchanger 1 year 5 years

Float Switch 6 months 25000 hours

Indicator Lamp 1year 8000 hours

Compressor 6 months 40000 hours

Fan motor 6 months 40000 hours

Linear Expansion Valve 1 year 25000 hours

Heat Exchanger 1 year 5 years

Pressure Switch 1 year 25000 hours

Inverter Cooling Fan 1 year 40000 hours

PartsCheck every

Replace after

Daily check

Periodically check RemarksUnit

Having the units inspected by a specialist on a regular basis, in addition to regular maintenance such aschanging the filters, will allow the users to use them safely and in good condition for an extended period oftime.The chart below indicates standard maintenance schedule.

(1) Approximate Longevity of Various Parts

The chart shows an approximate longevity of parts. It is an estimation of the time when old parts mayneed to be replaced or repairs need to be made.It does not mean that the parts must absolutely be replaced (except for the fan belt).Please note that the figures in the chart do not mean warranty periods.

(2) Notes

The above chart shows a maintenance schedule for a unit that is used under the following conditions:A. Less than 6 times per hour of compressor stoppageB. The unit stays on 24 hours a day.

Shortening the inspection cycle may need to be considered when the following conditions apply:➀ When used in high temperature/high humidity area or when used in a place where the temperature

and/or humidity fluctuate greatly➁ When plugged into an unstable power source (sudden change in voltage, frequency, wave distor-

tions) (Do not exceed the maximum capacity.)➂ When the unit is installed in a place where it receives vibrations or major impacts.➃ When used in a place with poor air quality (containing dust particles, salt, poisonous gas such as

sulfuric acid gas and sulfuric hydrogen gas, oil mist).

Even when the above maintenance schedule is followed, there could be unexpected problems thatcannot be predicted.

Holding of PartsWe will hold parts for the units for at least 9 years after the termination of the production of the unit,following the standards set by the ministry of economics and industries.

Details of Maintenance/Inspection

41

· Check for unusual noise· Measure the insulation

resistance

· Check for excessive slack· Check for wear and tear· Check for unusual noise

· Check for unusual noise

· Free of unusual noise· Insulation resistance over 1MΩ

· Resistance (3-4kg/belt)· Adequate amount of slack=5mm· Belt length=no longer than

102% of the original length· Free of wear and tear· Free of unusual noise

· Free of unusual noise

Replace when insulation resistance is under 1MΩ

· Check for clogging of the drainage system

· Check for loosened bolts· Check for corrosion

· Clean, free of clogging· Free of loose screws· No major disintegration

Clean if dirty or cloggedTighten boltsReplace if extremely worn

· Perform an operation check using the operation data

· Adequately controls the air temperature (Check temperature change on the centralized controller)

Replace if malfunctioning

· Check for torn wire, fraying, and unplugged connectors

· Check insulation resistance

· No frayed or cut wires or unplugged connectors

· Insulation resistance over 1MΩ

Replace when cut or shorted, when the insulation resistance goes below 1MΩ, or if there is a history of abnormal operation

· Check for unusual sound· Measure insulation resistance· Look for abnormal history

· Free of unusual sound· Insulation resistance over 1MΩ· No heatsink overheat protection

(4230,4330) on the report

Replace when producing unusual sounds, when insulation resistance goes under 1MΩ, or if there is a history of abnormal operation.

· Perform an operation check using the operation data

· Adequately controls the air temperature(Check temperature change on the centralized controller)

Replace if malfunctioning

· Check for clogging, dirt, and damage

· Clean, free of clogging or damage

Clean

· Check for unusual noise· Measure insulation resistance

· Free of unusual sound· Insulation resistance over 1MΩ

Replace if insulation resistance goes below 1MΩ

· Make sure the lamp comes on · Comes on when the output is on

Replace if the light does not come on when the power is on

· Check for clogging, dirt, and damage

· Clean, free of clogging or damage

Clean

· Check for clogging and tear· Clean the filter

· Clean, free of damage Clean the filterReplace if extremely dirty or damaged

· Check the outer appearance· Make sure its free of foreign

objects

· Free of frayed or cut wires· Free of foreign objects

Replace if damaged or extremely wornRemove foreign objects

· Make sure the loop of the hose has water to prevent air from traveling through the hose (Fill the hose with water)

· Check for clogging of the drainage system

· Clean, free of clogging· Free of wear and tear

Clean if dirty or cloggedReplace if extremely worm

· Check for unusual noise· Check insulation resistance· Check for loosened terminals

· Free of unusual sound· Insulation resistance over 1MΩ· Free of loosened terminals

Replace if insulation resistance goes below 1MΩ (under the condition that the refrigerant is not liquefied)Tighten loosened bolts

Adjust the beltReplace if the belt length exceeds 2% of the original length, worn, or used over 8000 hours

If the noise doesn't stop after lubrication, change the oil. Add lubricant once a year.

Parts

Fan motor

Bearing

Fan belt

Air filter

Linear expansion valve

Indicator lamp

Compressor

Fan motor

Linear expansion valve

6 months

6 months

6 months

6 months

3 months

Check pointsInspection

CycleUnit What to doAssessment

Drain pan

Drain hose

Inverter cooling fan

Float switch

Heat exchanger

Pressure switch

Heat exchanger

Indo

orO

utdo

or

1 year

1 year

1 year

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

Issued in June 2004 MEE03K204-APrinted in Japan

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

pud-p-ymf-c close control pfd-p-vm-a...

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