61
Refrigerant piping length (one way, 2 units total)
Calculation : Xg = 20 g/m x (Refrigerant piping length (m) - 20)
a
b
Outdoor
unit
Indoor
units
15 m
10 m
15 m
Max.
Height
difference
Outdoor unit
precharged
(g)
25 m
100
20 m
0
2,000
30 m
200
R.V.coil
OFF Refrigerant flow in heating
ON Refrigerant flow in cooling
Compressor
Muffler
High pressure switch
Ø6.35
Ø9.52
Ø9.52
Accumulator
Ø6.35
LEV A
Strainer
#100
Strainer
#100
Strainer
Union
Union
Header(Gas)
Stop valve
Header (Evaporator)
Sub
muffler
Discharge
temperature
thermistor
RT62
Outdoor
heat exchanger
temperature
thermistor
RT68
Ambient
temperature
thermistor
RT65
Defrost
temperature
thermistor
RT61
Capillary tube
Ø4.0 x Ø2.8 x 100
Indoor unit A
Indoor unit B
4-way valve
Stop valve
(with service port)
Indoor unit A
Indoor unit B
LEV B
Outdoor
heat exchanger
Capillary tube
Distributor
Strainer
#100
Strainer
#50
Charge pipe
MXZ-2E53VAHZ
UNIT: mm
Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes, refer to the
tables below.
When diameter of refrigerant pipe is different from that of outdoor unit union, use optional Different-diameter pipe.
For further information on Different-diameter pipe, refer to "PARTS CATALOG".
UNIT: mm (inch)
Piping length each indoor unit (a, b) 20 m
Total piping length (a+b) 30 m
Bending point for each unit 20
Total bending point 30
MAX REFRIGERANT PIPING LENGTH
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)
ADDITIONAL REFRIGERANT CHARGE
It is irrelevant which unit is higher.
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