Mitsubishi Electric CITY MULTI CMY-R100NCBK Manual de usuario

•For your safety, thoroughly read the following instructions prior to installation.

Safety Precautions

•Thoroughly read the following “Safety Precautions” to ensure proper installation.

•Observe the following important safety precautions at all times.

•Hazards that can occur from incorrect handling are classified by the symbols below:

WARNING

CAUTION

Incorrect handling can result in death or serious injury.

Incorrect handling can result in bodily injury and/or structure damage.

WARNING

Only a dealer or qualied technician should

perform installation.

Properly install all parts according to the

instructions in the Installation Manual.

After installation, check for a refrigerant leak.

Do not make any modications or alterations.

Consult your dealer for repair.

When installing or relocating the unit, check that

no substance other than the specied refrigerant

(R410A) enters the refrigerant circuit.

In the event of a refrigerant leak, thoroughly

ventilate the room.

•Improper installation may result in refrigerant gas leakage and

equipment damage.

•If the wrong twinning pipe or wrong size connecting pipe is used,

air conditioning performance will suffer.

•If leaked refrigerant comes in contact with a heat source, such

as a fan heater, stove, or electric grill, toxic gases will be

generated.

•Improper installation may result in water leakage, electric shock,

or re. •Any presence of foreign substance or air can cause abnormal

pressure rise or explosion.

•If refrigerant leaks and comes in contact with an open ame,

toxic gases will be generated.

CAUTION

Do not touch the refrigerant pipes and refrigerant

circuit components with bare hands during and

immediately after operation.

•During or immediately after operation, certain parts of the unit

such as pipes and compressor may be either very cold or hot,

depending on the state of the refrigerant in the unit at the time.

To reduce the risk of frostbites and burns, do not touch these

parts with bare hands.

Properly dispose of packing materials.

•Plastic bags can pose suffocation and choking hazards: keep

them out of the reach of children. Tear the plastics bags before

disposing of them.

* See the Installation Manual that came with the outdoor unit for installation instructions.

WT09183X01

Mitsubishi Electric Air Conditioner CITY MULTI

CMY-R100NCBK, CMY-R200NCBK, CMY-R300NCBK

Twinning Kit Installation Manual

1. Conrming the Package Contents

The following items are included with the Twinning Kit (CMY-R100NCBK, CMY-R200NCBK, CMY-R300NCBK). Verify that all items are

present before starting installation.

* Always use the twinning pipes included in the kit when preparing the twinning kit.

If the eld-supplied pipes do not t the parts in the kit, use the accessory piping parts listed below.

Twinning a

Insulation cover

Twinning kit

Pipe b (Before the twinning) Pipe c (After the twinning)

L-shape pipe d (After the twinning)

(1) Twinning pipes

Model Section Twinning a Pipe b (Before the

twinning)

Pipe c (After the

twinning)

L-shape Pipe d

(After the twinning) Insulation cover Installation Manual

CMY-R100NCBK

High-pressure 15.88 [5/8] × 15.88 [5/8] × 19.05 [3/4] - - - Small

1 (This booklet)

Low-pressure 25.4 [1] × 25.4 [1] × 28.58 [1-1/8] OD28.58 [1-1/8]-

ID28.58 [1-1/8]

OD25.4 [1]-

ID22.2 [7/8]

OD25.4 [1]-

ID22.2 [7/8] Large

CMY-R200NCBK

High-pressure 19.05 [3/4] × 19.05 [3/4] × 22.2 [7/8] - - - Small

Low-pressure 25.4 [1] × 25.4 [1] × 28.58 [1-1/8] OD28.58 [1-1/8]-

ID28.58 [1-1/8]

OD25.4 [1]-

ID22.2 [7/8]

OD25.4 [1]-

ID22.2 [7/8] Large

CMY-R300NCBK

High-pressure 19.05 [3/4] × 19.05 [3/4] × 28.58 [1-1/8] - - - Small

Low-pressure 28.58 [1-1/8] × 28.58 [1-1/8]

× 31.75 [1-1/4]

OD31.75 [1-1/4]-

ID34.93 [1-3/8]

OD28.58 [1-1/8]-

ID28.58 [1-1/8]

OD28.58 [1-1/8]-

ID28.58 [1-1/8] Large

(2) Accessory piping parts

Model Section Supplied pipe

CMY-R100NCBK High-pressure OD19.05 [3/4]-ID22.2 [7/8] -

Low-pressure OD22.2 [7/8]-ID19.05 [3/4] (2) -

CMY-R200NCBK High-pressure - -

Low-pressure OD22.2 [7/8]-ID28.58 [1-1/8] (2) OD28.58 [1-1/8]-ID34.93 [1-3/8]

CMY-R300NCBK High-pressure OD19.05 [3/4]-ID22.2 [7/8] (2) -

Low-pressure OD34.93 [1-3/8]-ID41.28 [1-5/8] -

(3) List of eld-supplied parts

• Refrigerant pipes other than the ones provided in the kit

• Heat-resistant insulation material (for field-supplied refrigerant pipes)

• Insulation cover tape

2. Selecting the Correct Size Refrigerant Pipes and Using the Twinning Kit

(1) Pipe size

1 Field-supply the pipes to be connected to the kit.

2 Select the correct size pipe referring to the Installation

manual of the unit model in use or the Databook.

3 If the pipe was cut with a pipe cutter, remove

the burrs and eliminate foreign materials before

connecting.

PURY-HP144 to HP240, (E)P192 to (E)P240

Set model PURY-HP144 PURY-HP/(E)P192 PURY-(E)P216 PURY-HP/(E)P240

Set Unit Unit 1 PURY-HP72 PURY-HP/(E)P96 PURY-(E)P120 PURY-HP/(E)P120

Unit 2 PURY-HP72 PURY-HP/(E)P96 PURY-(E)P96 PURY-HP/(E)P120

Twinning type CMY-R100NCBK CMY-R200NCBK

Twinning pipe - BC Controller High-pressure a ø22.2 [7/8] ø22.2 [7/8]*

Twinning pipe - BC Controller Low-pressure b ø28.58 [1-1/8] ø34.93 [1-3/8]

* When the high pressure piping length is 65 m (213 ft) or less, use ø22.2 (ø7/8) pipe.

When the high pressure piping length exceeds 65 m (213 ft), use ø22.2 (ø7/8) pipe until 65 m (213 ft), use ø28.58 (ø1-1/8) pipe for the part that exceeds 65 m (213 ft).

Twinning kit

Pipe b (Before the twinning)

Insulation cover

L-shape pipe d (After the twinning)

Twinning a

Pipe c (After the twinning)

Outdoor unit 2Outdoor unit 1

To BC controller (Low pressure pipe)

To BC controller (High pressure pipe)

See reverse.

PURY-(E)P264 to (E)P336

Set model PURY-(E)P264 PURY-(E)P288 PURY-(E)P312 PURY-(E)P336

Set Unit Unit 1 PURY-(E)P144 PURY-(E)P144 PURY-(E)P168 PURY-(E)P168

Unit 2 PURY-(E)P120 PURY-(E)P144 PURY-(E)P144 PURY-(E)P168

Twinning type CMY-R300NCBK

Twinning pipe - BC Controller High-pressure a ø28.58 [1-1/8]

Twinning pipe - BC Controller Low-pressure b ø34.93 [1-3/8] ø41.28 [1-5/8]

Twinning pipe - Outdoor unit

Unit model High-pressure Low-pressure

PURY-HP72 ø15.88 [5/8] ø19.05 [3/4]

PURY-HP/(E)P96 ø19.05 [3/4] ø22.2 [7/8]

PURY-HP/(E)P120 ø19.05 [3/4] ø28.58 [1-1/8]

PURY-(E)P144 ø22.2 [7/8] ø28.58 [1-1/8]

PURY-(E)P168 ø22.2 [7/8] ø28.58 [1-1/8]

(2) Slope of twinning pipes

Make sure the slope of the twinning pipes are at an angle

within ±15˚ to the horizontal plane.

If the slope exceeds the specied angle, the unit may be

damaged.

±15˚

(3) The length of the straight pipe between indoor units and the twinning pipe

Use the pipes supplied in the twinning kit, and make sure the section of the eld-supplied pipe that connects to the twinning pipe has

at least 500 mm [19-11/16 in] of straight section. (The section of the eld-supplied pipe that connects to the twinning pipe must have

at least 500 mm [19-11/16 in] of straight section.) If the straight section is less than 500 mm [19-11/16 in], it may result in equipment

damage.

(4) Pipe connection

• Make sure the pipes from the twinning pipe to the outdoor unit are sloped downwards.

A B

• If twinning pipe is installed above the base of the outdoor unit,

it should be no more than 200 mm [7-7/8 in].

• If the length of the pipe between the branching point and the outdoor unit exceeds 2 m (6 ft), provide a trap within 2 m (6 ft) from the

branching point.

The trap must be at least 200 mm (7-7/8 in) in height. (low-pressure pipe only) If there is no trap, oil can accumulate inside the pipe,

causing a shortage of oil and may damage the compressor.

* Small dots in the gures indicate branching points.

ⒶⒸ

Ⓑ

Ⓐ

Ⓐ To indoor units

Ⓑ Trap (low-pressure pipe only)

Ⓒ High-pressure pipe

Twinning pipe

Slope of the twinning pipe is at an angle within ±15° to the horizontal plane.

100 mm

[3-15/16 in]

max

Total pipe length = A + B < 5 m [16-7/16 ft]

Unit 2

Upward slope

Unit 1

To BC controller

Downward slope

Twinning pipe

To BC controller

Unit 2Unit 1 Unit 1

BC controller

Unit 2

Twinning pipe

200 mm

[7-7/8 in]

max

2 m (6 ft)

≤ 2 m (6 ft)

WT09183X01

See reverse.

3. Pipe Connection Example

Connect the pipes between outdoor units, referencing the gure at

right.

4. Insulation Cover Installation

Install the insulation cover on the twinning kit after brazing the pipes and twinning kit.

Insulate all refrigerant pipes. Insulate the high-pressure and low-pressure pipes separately, and pipes located inside the unit as well as

the outside. Use heat-resistant insulation material (Heat resistant : at least 120°C [248°F], Thickness: high-pressure = 10 mm [3/8 in],

low-pressure = 20 mm [13/16 in] ). Position the edges of the insulation cover and heat-resistant insulation material so as not to leave a

gap, and then wrap the exterior perimeter of the pipe joints and middle with tape (eld-supplied).

(1) High-pressure side

(2) Low-pressure side

Field piping

Insulation material (field supply)

Insulation material

(field supply)

Field piping

Twinning kit

Insulation cover

Tape (field supply)

5. Miscellaneous Notes

Secure the eld-supplied pipes with a pipe cover and a cable tie in place to keep them from coming in contact with other pipes as

necessary.

The pipe section before the twinning

pipe must have at least 500 mm

(19-11/16 in) of straight section.

Twinning kit

On-site piping

Tape (eld-supplied)

To be gap free

Heat-resistant insulation material (eld-supplied)

Insulation cover

To be gap free

eld-supplied pipe

High-pressure

twinning pipe

eld-supplied pipe

Insulation cover Heat-resistant insulation material (eld-supplied)

Tape (eld-supplied)

Insulation covers can shrink.

Overlap the tape as shown in the left

gure so that there will be no gap in

between the insulation cover or eld-

installed insulation material.

Overlap margin of the tape

Insulation material

(field supply)

Insulation material (field supply)

Tape (field supply)

Insulation cover

Tape (field supply)

Field piping

Twinning kit

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