AIR CONDITIONING SYSTEMS...For detail, refer to the section in the Databook on installation...

CMH-WM-V-AMODEL

AIR CONDITIONING SYSTEMS

CMH-WM-V-A

MEES18K070 1

CONTENTS Hydro unit

I.Hydro unit

1. SPECIFICATIONS.................................................................................................................................... 2

2. EXTERNAL DIMENSIONS ....................................................................................................................... 5

3. CENTER OF GRAVITY ............................................................................................................................ 7

4. ELECTRICAL WIRING DIAGRAMS ......................................................................................................... 8

5. SOUND LEVELS ...................................................................................................................................... 9

5-1. Sound levels .................................................................................................................................... 95-2. NC curves ........................................................................................................................................ 9

6. ELECTRICAL CHARACTERISTICS......................................................................................................... 10

7. INSTALLATION ........................................................................................................................................ 11

7-1. Lifting method .................................................................................................................................. 11

8. OPTIONAL PARTS................................................................................................................................... 12

8-1. Drain pan ......................................................................................................................................... 12

0000005070.BOOK 1 ページ２０１８年１１月１５日　木曜日　午後６時４１分

MEES18K070

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1. SPECIFICATIONS Hydro unit

I.Hydro unit1. SPECIFICATIONS

Model name CMH-WM250V-A

Power source 1-phase 220-230-240 V

50 Hz 60 Hz

Power input Cooling kW 0.74/0.74/0.74 0.74/0.74/0.74

(220/230/240) Heating kW 0.74/0.74/0.74 0.74/0.74/0.74

Current input Cooling A 3.84/3.67/3.52 3.84/3.67/3.52

(220/230/240) Heating A 3.84/3.67/3.52 3.84/3.67/3.52

Sound pressure level (measured in anechoice room) dB <A> 60

Applicable temperature range of installation site °C (D.B.) -5~52

External finish Pre-coated galvanized steel sheets

(Lower part drain pan: Pre-coated galvanized sheets + powder coating)

Connectable outdoor/heat source unit capacity (E)M200~250

External dimension H x W x D mm 660 x 920 x 740

in. 25-63/64 x 36-7/32 x 29-9/64

Refrigerant piping diameter

To outdoor/heat source unit Connectable outdoor/heat source unit capacity

M200 M250 EM200 EM250

Liquid pipe mm (in.) 9.52 (3/8) 9.52 (3/8) 9.52 (3/8) 9.52 (3/8)

O.D. Brazed Brazed Brazed Brazed

Gas pipe mm (in.) 22.2 (7/8) 22.2 (7/8) 22.2 (7/8) 22.2 (7/8)


Water piping diameter

To Indoor unit

Inlet Pipemm (in.)

I.D.40 (1-1/2) housing joint

Outlet Pipemm (in.)


Net weight kg (lbs) 112 (247) [119 (263) with water]

Standardattachment

Document –

Accessories Y-type strainer, Auto air vent valve, Joint, Elbow, Pipe

Optional parts Drain pan (PAC-SH01DP-E)

Note 1.Works not included: Installation/foundation work, electrical connection work, duct work, insulation work, power source switch, and other items are not specified in this specifications.

2.The equipment is for R32 refrigerant.

3.Install this product in a location where noise (refrigerant noise) emitted by the unit will not disturb the neighbors. (For use in quiet environments with low background noise, position the Hydro unit at least 5 m away from any indoor units.)

4.Please install the Hydro unit in a place where noise will not be an issue.

5.Please attach an expansion vessel (field supply).

6.Use copper, plastic, steel, or stainless steel pipes for the water circuit. Furthermore, when using copper pipe-work use a non-oxidative brazing method. Oxidation of the pipe-work will reduce the pump life.

7.When brazing the pipes, be sure to braze, after covering a wet cloth to the insulation pipes of the units in order to prevent it from burning and shrinking by heat.

8.Please install an air purge valve where air will gather in the water circuit.

9.Please install a pressure reducing valve and a strainer on the water supply to the Hydro unit.

10.Please refer to the databook or the installation manual for the specified water quality.

11.Please always make water circulate or pull out the circulation water completely when not using it. *Please do not use it as a drinking water.

12.Please do not use ground water and well water.

13.When installing the Hydro unit in an environment which may drop below 0 °C, please add antifreeze to the circulating water. (Refer to the data-book and the installation manual).

14.R32 is flammable, and certain restrictions apply to the installation of units. When installing new units, moving the existing units, or changing the layout of the room, ensure that installation restrictions are observed. For detail, refer to the section in the Databook on installation restrictions.

15.Drain or condensation water will be discharged from hydro units during test run. If this will be a problem, install a separately sold drain pan.

16.Do not install the unit where it could be salt-damaged.


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50 Hz 60 Hz


(220/230/240) Heating kW 0.90/0.90/0.90 0.90/0.90/0.90


(220/230/240) Heating A 4.69/4.48/4.30 4.69/4.48/4.30







in. 25-63/64 x 36-7/32 x 29-9/64



M300 M350 EM300 EM350

Liquid pipe mm (in.) 9.52 (3/8) 12.7 (1/2) 9.52 (3/8) 12.7 (1/2)


Gas pipe mm (in.) 22.2 (7/8) 28.58 (1-1/8) 28.58 (1-1/8) 28.58 (1-1/8)



To Indoor unit

Inlet Pipemm (in.)


Outlet Pipemm (in.)



Standardattachment

Document –




















MEES18K070

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50 Hz 60 Hz


(220/230/240) Heating kW 1.06/1.06/1.06 1.06/1.06/1.06


(220/230/240) Heating A 5.47/5.23/5.02 5.47/5.23/5.02







in. 25-63/64 x 36-7/32 x 29-9/64



M400 M450/500 EM400 EM450/500

Liquid pipe mm (in.) 12.7 (1/2) 15.88 (5/8) 12.7 (1/2) 15.88 (5/8)


Gas pipe mm (in.) 28.58 (1-1/8) 28.58 (1-1/8) 28.58 (1-1/8) 28.58 (1-1/8)



To Indoor unit

Inlet Pipemm (in.)

I.D.50 (2) housing joint

Outlet Pipemm (in.)

I.D.50 (2) housing joint


Standardattachment

Document –




















MEES18K070

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2. EXTERNAL DIMENSIONS Hydro unit

2. EXTERNAL DIMENSIONS

CMH-WM250, 350, 500V-A Unit: mm

1 2 43 5 6 7 8NO.

102

148

155

760

8080

681(678~684)29.5

105

150

290

968421550 100 94

120

83 92

150 30

0

(740)

192

230

345

175

29.5

170223

160

135 21

7

190310

400518

A

920

740 660

450 450

35

1 234

7

5

68

Fron

t vie

w

Bot

tom

vie

w

Rig

ht S

ide

view

Rea

r vie

w

Wat

er p

ipe(

EX

P.Ve

ssel

)ø2

2.0(

use

atta

chm

ent p

ipe)

[fiel

d su

pply

]

Wat

er in

let

WM

250,

350:

1-1/

2inc

h ho

usin

g jo

int

WM

500:

2inc

h ho

usin

g jo

int

Wat

er p

ipe(

Inle

t)ø2

2.0(

use

atta

chm

ent p

ipe)

[fiel

d su

pply

]

Wat

er o

utle

tW

M25

0,35

0:1-

1/2i

nch

hous

ing

join

tW

M50

0:2i

nch

hous

ing

join

tC

ontro

l box

Ser

vice

pan

elS

ervi

ce p

anel

(Mounting pitch)

(Mou

ntin

g pi

tch)

Slin

g ho

leY-

type

stra

iner

(Acc

esso

ry)

Join

t(Acc

esso

ry)

Top

view

Ref

riger

ant

pipe

<G

as>

Ref

riger

ant

pipe

<Li

quid

>

Serv

ice s

pace

Serv

ice s

pace

Det

ail o

f X s

ectio

n

For tr

ansm

ission

cable

s

For w

ires

For p

ipes

Usa

geS

peci

ficat

ions

Fro

nt thr

ough

hole

Botto

m thr

ough

hole

Front

throu

gh ho

le

Front

throu

gh ho

le

Botto

m thr

ough

hole

Botto

m thr

ough

hole

Front

throu

gh ho

le

148

× 84

Kno

ckou

t hole

ø28

Knoc

kout

hole

ø2

8 Kn

ocko

ut h

ole

ø28

Knoc

kout

hole

ø2

8 Kn

ocko

ut h

ole

ø35

Knoc

kout

hole

150

× 94

Kno

ckou

t hole

ø35

Knoc

kout

hole

Bo

ttom

throu

gh ho

le

Mod

elD

iam

eter

Ref

riger

ant p

ipe

WM

350

ø22.2

Braz

ed

ø9.5

2 Br

azed

W

M25

0

Con

nect

ing

pipe

spe

cific

atio

ns

Liqu

idG

as

ø12.

7 Br

azed

ø15.

88 B

raze

dø2

5.4 Br

azed

WM

500

(ø28.6

Braz

ed) *

1

Mod

el

WM

350

256

WM

250

A 281

WM

500

Not

e 1.

Ple

ase

refe

r to

the

next

pag

e fo

r inf

orm

atio

n re

gard

ing

nece

ssar

y fo

unda

tion

wor

k.2.

Take

not

ice

of s

ervi

ce s

pace

as

follo

ws.

(Ple

ase

give

atte

ntio

n no

t to

occu

py s

ervi

ce s

pace

by

letti

ng d

ucts

and

pip

es th

roug

h.)

3.A

t bra

zing

of p

ipes

, wra

p th

e pi

pew

ith w

et c

loth

and

kee

p th

e te

mpe

ratu

re o

f pip

e un

der 1

20°C

.4.

If de

w c

onde

nsat

ion

wat

er d

ropp

ing

from

hol

es o

n th

e un

it ba

seis

con

cern

ed, p

leas

e in

stal

l the

dra

in p

an.

5.In

stal

l thi

s pr

oduc

t in

a lo

catio

n w

here

noi

seem

itted

by

the

unit

will

not

dis

turb

the

neig

hbor

s.

<Acc

esso

ries>

· Y-ty

pe s

train

er(R

c1-1

/4)·

··W

M25

0,35

0 1p

c.· Y

-type

stra

iner

(Rc1

-1/2

)···

WM

500

1pc.

· Joi

nt(F

rom

Rc1

-1/4

to 1

-1/2

inch

hou

sing

join

t)··

·WM

250,

350

1pc.

· Joi

nt(F

rom

Rc1

-1/2

to 2

inch

hou

sing

join

t)··

·WM

500

1pc.

· Elb

ow(ID

ø25.

4×O

Dø2

5.4)

···W

M35

0,50

0 1p

c.· P

ipe

(IDø2

5.4×

OD

ø28.

6)··

·WM

350,

500

1pc.

· Aut

o ai

r ven

t val

ve(G

3/8)

···1

pc.

A P

RE

VIO

US

NO

TIC

E A

ND

MIG

HT

CH

AN

GE

.TH

E S

PE

CIF

ICAT

ION

OF

THE

PR

OD

UC

T IS

FO

R T

HE

IMP

RO

VE

ME

NT

*1 U

sing d

iffere

nce d

iamete

r pipe

joint

.*2

Con

nect

the re

friger

ant p

ipe

acco

rding

to th

e Ins

tallat

ion M

anua

l.*3

Indic

ates d

imen

sions

and c

onne

ction

spec

ificati

ons

in the

case

the u

nit is

used

in co

mbina

tion w

ith

other

outdo

or un

its.

2×2-

14×2

0 O

val h

ole

Ref

riger

ant p

ipe

<Liq

uid>

Ref

riger

ant p

ipe

<Gas

>

X

Cut

ting

poin

t


MEES18K070

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2. EXTERNAL DIMENSIONS Hydro unit

CMH-WM250, 350, 500V-A Unit: mm

30mm max

M10 a

ncho

r bolt

<field

supp

ly req

uired

>

Fig.

A

Fixing

plate

<field

supp

ly req

uired

>Fi

g.B

1. F

ound

atio

n w

ork

1 Ta

ke in

to c

onsi

dera

tion

the

surfa

ce s

treng

th, w

ater

dra

inag

e ro

ute,

pipi

ng ro

ute,

and

wiri

ng ro

ute

whe

n pr

epar

ing

the

inst

alla

tion

site

.<N

ote

that

the

drai

n w

ater

com

es o

ut o

f the

uni

t dur

ing

oper

atio

n.>

2 B

uild

the

foun

datio

n in

suc

h w

ay th

at th

e co

rner

of t

he in

stal

latio

n le

g is

secu

rely

sup

porte

d as

sho

wn

in th

e rig

ht fi

gure

.(Fig

.A)

Whe

n us

ing

a ru

bber

isol

atin

g cu

shio

n, p

leas

e en

sure

it is

larg

e en

ough

to c

over

the

entir

e w

idth

of e

ach

of th

e un

it's

legs

.3

The

prot

rusi

on le

ngth

of t

he a

ncho

r bol

t mus

t not

exc

eed

30m

m.(F

ig.A

)4

Use

four

fixi

ng p

late

s as

sho

wn

in th

e rig

ht fi

gure

<fie

ld s

uppl

y re

quire

d>w

hen

usin

g po

st-in

stal

led

anch

or b

olts

.(Fig

.B)

5 To

pre

vent

sm

all a

nim

als

and

wat

er a

nd s

now

from

ent

erin

g th

e un

it an

d da

mag

ing

its p

arts

,cl

ose

the

gap

arou

nd th

e ed

ges

of th

roug

h ho

les

for p

ipes

and

wire

s w

ithfil

ler p

late

s <f

ield

sup

ply

requ

ired>

.6

Whe

n th

e pi

pes

or c

able

s ar

e ro

uted

at t

he b

otto

m o

f the

uni

t,m

ake

sure

that

the

thro

ugh

hole

at t

he b

ase

of th

e un

it do

es n

ot g

et b

lock

edw

ith th

e in

stal

latio

n ba

se.

7 R

efer

to th

e In

stal

latio

n M

anua

l whe

n in

stal

ling

units

on

an in

stal

latio

n ba

se.


MEES18K070

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3. CENTER OF GRAVITY Hydro unit

3. CENTER OF GRAVITY

CMH-WM250, 350, 500V-A

Model

CMH-WM250V-A

CMH-WM350V-A

CMH-WM500V-A

X

443

433

392

Y

256

256

260

Z

398

394

406

Unit: mm

XY

Z

740 9066

0


MEES18K070

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4. ELECTRICAL WIRING DIAGRAMS Hydro unit

4. ELECTRICAL WIRING DIAGRAMS

CMH-WM250, 350, 500V-A

t°t°

t°t°

U

U

CN

110

FT00

1

FT00

2

SC-T

SC-R

CN

DC

CNVD

C

CN2

CN

17V

CN

2

CN

301

CN

601

CN

001

CN

801

CN

002

CN

802

CN

303

CN

305

CN

RS

T

CN

401

CN

301

CN

412

CN

AC

CN

FG

CT2

SC-S

SC-P

1

SC-P

2

CN4

CN

4

CN10

2CN

101

INV-

BO

AR

D

CN

401

CN

402

CN

411

CN

413

PS

-BO

AR

DM

AIN

-BO

AR

D

CN

701

LEVM

12

31

24

53

12

56 4 3 2 112

1 2 3 1 2 3 51 2 4

31

2

CN30

6

35

42

1

35 4 2 11212234 112 56 4 3 2 1

12

12

31

2

23 1

32

14

12

35

12

4

12

31

2

234 1

LN

21 3 4 5 6

TH32

TH35

TH11

TH13

12

31

23

12

3PS

LWPS

HW

12

AC

L

SC-U

SC-V

SC-W

SV

3

whi

te

yello

w

H

WV

UM

S 3~ WP

whi

te

red

gree

n

blue

gree

n

gree

n

gree

nye

llow

red

red

blac

k

whi

te

whi

te

whi

te

pink

blac

k

blue

whi

te

red

blue

red

yello

wbla

ckgr

een

red

gree

n

red

red

2

whi

tebl

ack

red

white

black

gree

nw

hite re

d

23 1

31

4

M1

M2

TB3

X01

X02

F3.

15A

CTX

52

PTC

CT1

DS

A

Indo

or/o

utdo

orTr

ansm

issi

on L

ine

SWU0

1SW

U02

LD00

1

SWP0

2

SWP0

1UP DO

WNSW

P03

TB01

LED4

:CPU

in o

pera

tion

LED1

:Nor

mal

oper

ation

(lit)

/Erro

r(blin

k)

pow

er s

uppl

y~2

20V-

240V

50H

z/60

Hz

LED

02:N

orm

al o

pera

tion(

lit)

/Err

or(b

link)

LED

01:C

PU

in o

pera

tion

PS

R

LD60

1:po

wer

sup

ply

Prim

ary

curre

ntde

tect

ion

circu

it

31

54

2

TB-N

TB-P

RY

PN

12

Z1

yello

wC

N40

3F 6.

3AF1

5A

Not

e:1.

The

brok

en li

nes

indi

cate

the

field

-sup

plie

d pa

rts,a

nd fi

eld

wor

k.2.

TB3

is tr

ansm

issi

on te

rmin

al b

lock

.N

ever

con

nect

pow

er li

ne to

it.

3.C

ontro

l box

hou

ses

high

-vol

tage

par

ts.

Befo

re in

spec

ting

the

insi

de o

f the

con

trol b

ox, t

urn

off t

he p

ower

,ke

ep th

e un

it of

f for

at l

east

10

min

utes

, and

con

firm

that

the

volta

geof

the

conn

ecto

r RYP

N o

n IN

V-BO

ARD

has

dro

pped

to D

C20

V or

less

.4.

The

initi

al s

et v

alue

s of

sw

itch

on M

AIN

BO

ARD

are

as

follo

ws.

SWU

01:0

SWU

02:0

(Sym

bol e

xpla

natio

n)

LEV

AC

L

PS

HW

,PS

LWPr

essu

re se

nsor

(wate

r)

Sym

bol

Nam

eA

C re

acto

r

Exp

ansi

on v

alve

WP

Pum

p

Nam

eS

ymbo

l

HE

lect

ric h

eate

r

PS

RP

ress

ure

sens

or(r

efrig

eran

t)

Fuse

F

Sol

enoi

d va

lve

SV

(Ant

ifree

ze)

TB01

Term

inal

blo

ck(fo

r pow

er s

ourc

e)TB

3Te

rmin

al b

lock

(for T

rans

mis

sion

)TH

11,T

H12

,TH

32,T

H35

Ther

mis

ter s

enso

r

Z1Fu

nctio

n se

tting

conn

ecto

r

987654321

ON

ON

SW01

1

ON

10

987654321 10

87654321

SW00

1SW

002

SW

1

12

34

ON

SW1

12

34

56

ON


MEES18K070

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5. SOUND LEVELS Hydro unit

5. SOUND LEVELS5-1. Sound levels(Measured point)

5-2. NC curves

*Measured in anechoic room.

1m

Measurement location

10

20

30

40

50

60

70

80

90

63 125 250 500 1k 2k 4k 8k

NC-40

NC-30

NC-20

NC-60

NC-70

NC-50

Power Source: 220-240V (50/60Hz)

Octave band central frequency (Hz)

Oct

ave

band

sou

nd le

vel (

dB)

Approximate minimumaudible limit oncontinuous noise

CMH-WM250, 350, 500V-A


MEES18K070

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6. ELECTRICAL CHARACTERISTICS Hydro unit

6. ELECTRICAL CHARACTERISTICS

Symbols: MCA: Max. Circuit Amps, MFA: Max. Fuse Amps, RLA: Rated Load Amps

Hydro unitPower supply

RLA(A)Hz Volts Range+-10% MCA(A) MFA(A)

CMH-WM250V-A 50/60

220Max.: 264VMin.: 198V

4.40 15

3.84

230 3.67

240 3.52

CMH-WM350V-A 50/60

220Max.: 264VMin.: 198V

5.38 15

4.69

230 4.48

240 4.30

CMH-WM500V-A 50/60

220Max.: 264VMin.: 198V

6.28 15

5.47

230 5.23

240 5.02


MEES18K070

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11

7. INSTALLATION Hydro unit

7. INSTALLATION7-1. Lifting method

When hanging the unit for transportation Use hanging holes to hang the unit.

Keep the ropes from coming into contact with the water supply and expansion vessel pipes while the unit is being hung.

Protective padProtective pad

Protective pad

Water-supply pipes

Unit

Expansion vessel

Out of contact with rope

Hanging holes

pipes

40°≤


MEES18K070

Hyd

ro u

nit

12

8. OPTIONAL PARTS Hydro unit

8. OPTIONAL PARTS8-1. Drain pan

Drain pan

CMH-WM250, 350, 500V-A PAC-SH01DP-E

CMH-WM-A

base

Hydro unit

Drain pan PAC-SH01DP-E

PAC-SH01DP-EItem

Quantity 1 2 10 (Spare included)

Shape

Detailed installation information should be referred to its Installation Manual.

ItemQuantity

Shape

Drain pan Additional panel

5 (Spare included) 12 (Spare included)Washer M10 Screw 5 × 10 KNURLED

Nut M10


MEES18K070New publication effective Nov. 2018

Specifications subject to change without notice

WarningDo not use refrigerant other than the type indicated in the manuals provided with the unit and on the nameplate.- Doing so may cause the unit or pipes to burst, or result in explosion or fire during use, repair, or at the time of disposal of the unit.- It may also be in violation of applicable laws.- MITSUBISHI ELECTRIC CORPORATION cannot be held responsible for malfunctions or accidents resulting from the use of the wrong

type of refrigerant.Our air conditioning equipment and heat pumps contain a fluorinated greenhouse gas, R32.

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AIR CONDITIONING SYSTEMS...For detail, refer to the section in the Databook on installation...

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