Mitsubishi MXZ-2A52VA Service Manual download pdf (Page 88)

Stop valve

(with strainer #100)

LEV A

LEV B

Compressor

Defrost

thermistor

RT61

Distributor

Muffler

4-way valve

Indoor unit

Capillary tube

Strainer

#100

Stop valve

(with strainer #100)

R.V. coil

OFF

Refrigerant flow in cooling

Refrigerant flow in heating

Ambient

temperature

thermistor

RT65

Outdoor heat

exchanger

temperature

thermistor

RT68

FAN-OUT

HEX-OUT

Discharge

temperature

thermistor RT62

Stop valve

(with service port)

Stop valve

(with service port)

Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes, refer to the

tables below.

UNIT: mm (inch)

Piping length each indoor unit (a, b) 20m

Total piping length (a+b) 30m

Bending point for each unit 20

Total bending point 30

It does not matter which unit is higher.

ADDITIONAL REFRIGERANT CHARGE

UNIT: mm

MXZ-2A40VA

MXZ-2A52VA

MAX REFRIGERANT PIPING LENGTH

Outdoor

unit

Indoor

units

15m

10m

15m

Refrigerant piping length (one way, 2 unit total)

Calculation : Xg = 20 g/m x (Refrigerant piping length(m) - 20)

Outdoor unit

precharged

(g)

30m

200

20m

1,300

Indoor unit

Extension pipe diameter

class Pipe diameter

22/25/35

Liquid 6.35(1/4) Liquid 6.35(1/4)

Gas 9.52(3/8) Gas 9.52(3/8)

Outdoor unit union diameter

For

Indoor unit A

Liquid 6.35(1/4)

Gas 9.52(3/8)

Indoor unit B

Liquid 6.35(1/4)

Gas 9.52(3/8)

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Mitsubishi MXZ-2A52VA Service Manual Page 88

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