Mitsubishi Electric CITY MULTI CMH-WM-V-A Series Product guide

CMH-WM-V-A

MODEL

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 .................................................................................................................................... 9

5-2. 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

Hydro unit

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)

O.D. Brazed Brazed Brazed Brazed

Water piping

diameter

To Indoor unit

Inlet Pipe mm (in.)

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

Outlet Pipe mm (in.)

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

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

Standard

attachment

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.

0000005070.BOOK 2 ページ２０１８年１１月１５日　木曜日　午後６時４１分

MEES18K070

Hydro unit

1. SPECIFICATIONS Hydro unit

Model name CMH-WM350V-A

Power source 1-phase 220-230-240 V

50 Hz 60 Hz

Power input Cooling kW 0.90/0.90/0.90 0.90/0.90/0.90

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

Current input Cooling A 4.69/4.48/4.30 4.69/4.48/4.30

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

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)M300~350

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

M300 M350 EM300 EM350

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

O.D. Brazed Brazed Brazed Brazed

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

O.D. Brazed Brazed Brazed Brazed

Water piping

diameter

To Indoor unit

Inlet Pipe mm (in.)

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

Outlet Pipe mm (in.)

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

Net weight kg (lbs) 122 (269) [126 (278) with water]

Standard

attachment

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.

0000005070.BOOK 3 ページ２０１８年１１月１５日　木曜日　午後６時４１分

MEES18K070

Hydro unit

1. SPECIFICATIONS Hydro unit

Model name CMH-WM500V-A

Power source 1-phase 220-230-240 V

50 Hz 60 Hz

Power input Cooling kW 1.06/1.06/1.06 1.06/1.06/1.06

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

Current input Cooling A 5.47/5.23/5.02 5.47/5.23/5.02

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

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)M400~500

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

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)

O.D. Brazed Brazed Brazed Brazed

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

O.D. Brazed Brazed Brazed Brazed

Water piping

diameter

To Indoor unit

Inlet Pipe mm (in.)

I.D. 50 (2) housing joint

Outlet Pipe mm (in.)

I.D. 50 (2) housing joint

Net weight kg (lbs) 143 (316) [157 (347) with water]

Standard

attachment

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.

0000005070.BOOK 4 ページ２０１８年１１月１５日　木曜日　午後６時４１分

MEES18K070

Hydro unit

2. EXTERNAL DIMENSIONS Hydro unit

2. EXTERNAL DIMENSIONS

CMH-WM250, 350, 500V-A

Unit: mm

NO.

102 148

155

76080 80

681(678~684) 29.5

105 150

290

96 84

215 5010094

120

150

300

(740)

192

230

345

175

29.5

170

223

160

135

217

190

310

400

518

920

740660

450450

Front view

Bottom view

Right Side view Rear view

Water pipe(EXP.Vessel)

ø22.0(use attachment pipe)

[field supply]

Water inlet

WM250,350:1-1/2inch housing joint

WM500:2inch housing joint

Water pipe(Inlet)

ø22.0(use attachment pipe)

[field supply]

Water outlet

WM250,350:1-1/2inch housing joint

WM500:2inch housing joint

Control box

Service panel

(Mounting pitch)

Sling hole Y-type strainer(Accessory)

Joint(Accessory)

Top view

Refrigerant

pipe <Gas>

Refrigerant

pipe <Liquid>

Service space

Detail of X section

For transmission cables

For wires

For pipes

Usage Specifications

Front through hole

Bottom through hole

Front through hole

Bottom through hole

Front through hole

148 × 84 Knockout hole

ø28 Knockout hole

ø35 Knockout hole

150 × 94 Knockout hole

ø35 Knockout hole

Bottom through hole

Model

Diameter

Refrigerant pipe

WM350

ø22.2 Brazed

ø9.52 Brazed

WM250

Connecting pipe specifications

Liquid Gas

ø12.7 Brazed

ø15.88 Brazed

ø25.4 Brazed

WM500

(ø28.6 Brazed) *1

Model

WM350 256

WM250

281WM500

Note 1.Please refer to the next page for information

regarding necessary foundation work.

2.Take notice of service space as follows.

(Please give attention not to occupy service space by

letting ducts and pipes through.)

3.At brazing of pipes, wrap the pipe

with wet cloth and keep the temperature of pipe under 120°C.

4.If dew condensation water dropping from holes on the unit base

is concerned, please install the drain pan.

5.Install this product in a location where noise

emitted by the unit will not disturb the neighbors.

· Y-type strainer(Rc1-1/4)···WM250,350 1pc.

· Y-type strainer(Rc1-1/2)···WM500 1pc.

· Joint(From Rc1-1/4 to 1-1/2inch housing joint)···WM250,350 1pc.

· Joint(From Rc1-1/2 to 2inch housing joint)···WM500 1pc.

· Elbow(IDø25.4×ODø25.4)···WM350,500 1pc.

· Pipe (IDø25.4×ODø28.6)···WM350,500 1pc.

· Auto air vent valve(G3/8)···1pc.

A PREVIOUS NOTICE AND MIGHT CHANGE.

THE SPECIFICATION OF THE PRODUCT IS FOR THE IMPROVEMENT

*1 Using difference diameter pipe joint.

*2 Connect the refrigerant pipe

according to the Installation Manual.

*3 Indicates dimensions and connection specifications

in the case the unit is used in combination with

other outdoor units.

2×2-14×20 Oval hole

Refrigerant pipe <Liquid>

Refrigerant pipe <Gas>

Cutting point

0000005070.BOOK 5 ページ２０１８年１１月１５日　木曜日　午後６時４１分

MEES18K070

Hydro unit

2. EXTERNAL DIMENSIONS Hydro unit

CMH-WM250, 350, 500V-A

Unit: mm

30mm max

M10 anchor bolt

Fig.A

Fixing plate

Fig.B

1. Foundation work

1 Take into consideration the surface strength, water drainage route,

piping route, and wiring route when preparing the installation site.

2 Build the foundation in such way that the corner of the installation leg is

securely supported as shown in the right figure.(Fig.A)

When using a rubber isolating cushion, please ensure it is large enough

to cover the entire width of each of the unit's legs.

3 The protrusion length of the anchor bolt must not exceed 30mm.(Fig.A)

4 Use four fixing plates as shown in the right figure <field supply required>

when using post-installed anchor bolts.(Fig.B)

5 To prevent small animals and water and snow from entering the unit and damaging its parts,

close the gap around the edges of through holes for pipes and wires with

filler plates <field supply required>.

6 When the pipes or cables are routed at the bottom of the unit,

make sure that the through hole at the base of the unit does not get blocked

with the installation base.

7 Refer to the Installation Manual when installing units on an installation base.

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

MEES18K070

Hydro unit

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

443

433

392

256

260

398

394

406

Unit: mm

740 90

660

0000005070.BOOK 7 ページ２０１８年１１月１５日　木曜日　午後６時４１分

MEES18K070

Hydro unit

4. ELECTRICAL WIRING DIAGRAMS Hydro unit

4. ELECTRICAL WIRING DIAGRAMS

CMH-WM250, 350, 500V-A

t° t° t° t°

CN110

FT001

FT002

SC-T

SC-R

CNDC

CNVDC

CN2

CN17V CN2

CN301

CN601

CN001

CN801

CN002

CN802

CN303

CN305

CNRST

CN401

CN301

CN412

CNAC

CNFG

CT2

SC-S

SC-P1

SC-P2

CN4

CN102

CN101

INV-BOARD

CN401CN402

CN411

CN413

PS-BOARD MAIN-BOARD

CN701

LEV

1245

312

564321 12

1231235124

312

CN306

35421

354211212234112564321

1212

312

231

12 4

312

2341

213456

TH32 TH35 TH11 TH13

123123

123

PSLW PSHW

ACL

SC-U

SC-V

SC-W

white

yellow

UMS

white

red

green

blue

green

greenyellow

red

black

white

pink black

blue

white

red

blue

red

yellow black

green

red

green

red

white

black

red

white

black

green white

red

231

M1 M2

TB3

X01 X02

3.15A

X52

PTC

CT1

DSA

Indoor/outdoor

Transmission Line

SWU01

SWU02

LD001

SWP02

SWP01

DOWN

SWP03

TB01

LED4:CPU in operation

LED1:Normal operation(lit)

/Error(blink)

power supply

~220V-240V

50Hz/60Hz

LED02:Normal operation(lit)

/Error(blink)

LED01:CPU in operation

PSR

LD601:power supply

Primary current

detection circuit

TB-NTB-P

RYPN

yellow

CN403

6.3A

F15A

Note:1.The broken lines indicate the field-supplied parts,and field work.

2.TB3 is transmission terminal block.

Never connect power line to it.

3.Control box houses high-voltage parts.

Before inspecting the inside of the control box, turn off the power,

keep the unit off for at least 10 minutes, and confirm that the voltage

of the connector RYPN on INV-BOARD has dropped to DC20V or less.

4.The initial set values of switch on MAIN BOARD are as follows.

SWU01:0

SWU02:0

(Symbol explanation)

LEV

ACL

PSHW,PSLW

Pressure sensor(water)

Symbol Name

AC reactor

Expansion valve

WP Pump

Name

Symbol

HElectric heater

PSR Pressure sensor

(refrigerant)

Fuse

Solenoid valve

(Antifreeze)

TB01 Terminal block

(for power source)

TB3 Terminal block

(for Transmission)

TH11,TH12,

TH32,TH35 Thermister sensor

Function setting connector

987654321

SW011

98765432110

87654321

SW001

SW002

SW1

1234

SW1

123456

0000005070.BOOK 8 ページ２０１８年１１月１５日　木曜日　午後６時４１分

MEES18K070

Hydro unit

5. SOUND LEVELS Hydro unit

5. SOUND LEVELS

5-1. Sound levels

(Measured point)

5-2. NC curves

Measured in anechoic room.

Measurement location

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)

Octave band sound level (dB)

Approximate minimum

audible limit on

continuous noise

CMH-WM250, 350, 500V-A

0000005070.BOOK 9 ページ２０１８年１１月１５日　木曜日　午後６時４１分

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