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MEES18K070

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1. SPECIFICATIONS

Hydro unit

I.Hydro unit

1. 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  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

Summary of Contents for CITY MULTI CMH-WM-V-A Series

Page 1: ...CMH WM V A MODEL AIR CONDITIONING SYSTEMS ...

Page 2: ...XTERNAL 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 ...

Page 3: ... 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 wo...

Page 4: ...it 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 n...

Page 5: ...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...

Page 6: ...erant 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 A 281 WM500 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 throug...

Page 7: ...lease 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 o...

Page 8: ...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 X Y Z 740 90 660 0000005070 BOOK 7 ページ 2018年11月15日 木曜日 午後6時41分 ...

Page 9: ...ion 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 3 1 5 4 2 TB N TB P RYPN 1 2 Z1 yellow CN403 F 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 Contro...

Page 10: ...c 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 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 ...

Page 11: ...RLA Rated Load Amps Hydro unit Power supply RLA A Hz Volts Range 10 MCA A MFA A CMH WM250V A 50 60 220 Max 264V Min 198V 4 40 15 3 84 230 3 67 240 3 52 CMH WM350V A 50 60 220 Max 264V Min 198V 5 38 15 4 69 230 4 48 240 4 30 CMH WM500V A 50 60 220 Max 264V Min 198V 6 28 15 5 47 230 5 23 240 5 02 0000005070 BOOK 10 ページ 2018年11月15日 木曜日 午後6時41分 ...

Page 12: ... 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 pad Protective pad Protective pad Water supply pipes Unit Expansion vessel Out of contact with rope Hanging holes pipes 40 0000005070 BOOK 11 ページ 2018年11月15日 木曜日 午後6時41分 ...

Page 13: ...ase Hydro unit Drain pan PAC SH01DP E PAC SH01DP E Item Quantity 1 2 10 Spare included Shape Detailed installation information should be referred to its Installation Manual Item Quantity Shape Drain pan Additional panel 5 Spare included 12 Spare included Washer M10 Screw 5 10 KNURLED Nut M10 0000005070 BOOK 12 ページ 2018年11月15日 木曜日 午後6時41分 ...

Page 14: ...e 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 gree...

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