Mitsubishi Electric MUX-A20WV Service Manual download pdf (Page 21)

REFRIGERANT SYSTEM DIAGRAM

Indoor unit A

Outdoor unit

MUX-2A28VB- E1

Additional piping max. length 15m

Max. length

difference

10m

Indoor unit B

UNIT A

Indoor

heat

exchanger

Indoor coil

thermistor

RT12

Room

temperature

thermistor

RT11

UNIT B

Indoor

heat

exchanger

Outdoor

heat

exchanger

Indoor coil

thermistor

RT12

Room

temperature

thermistor

RT11

(With insulation)

Refrigerant pipe

[9.52

(With insulation)

Refrigerant pipe

[9.52

Flared connection

(With insulation)

Refrigerant pipe

[6.35

(With insulation)

Refrigerant pipe

[6.35

Flared connection

Stop valve

with service port

Solenoid valve

21R1

Solenoid

valve

21R

Solenoid valve

21R2

Capillary tube

[3.0 x [1.4 x 1000

Compressor

Strainer

#100

Muffler

Refrigerant flow in cooling

Stop valve

with service port

Stop

valve

Stop

valve

[3.0 x [1.6 x 900

[3.0 x [1.4 x 400

Strainer

#100

OUTDOOR UNIT

INDOOR UNIT

MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE

PIPING PREPARATION

1 Table below shows the specifications of pipes commercially available.

2 Ensure that the 2 refrigerant pipes are well insulated to prevent condensation.

3 Refrigerant bending radius must be 10cm or more.

MUX-2A28VB-

Unit : mm

Outside diameter Insulation

UNIT No. Pipe

mm thickness

Insulation material

and

UNIT

For liquid 6.35 8 mm Heat resisting foam plastic

For gas 9.52 8 mm 0.045 specific gravity

ADDITIONAL REFRIGERANT CHARGE (R410A:g)

Outdoor unit

precharged

900g

Refrigerant piping length (one way)

0 10 20 30 40 50 60

70 80 90 100 110 120 130 140 150 160 170 180 190 200

unit + unit

UNIT No.

OB384--1.qxp 05.1.17 13:08 Page 21

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 71 72

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Mitsubishi Electric MUX-A20WV Service Manual Page 21

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