Mitsubishi Electric MXZ-3E54VA-E1 Service Manual page 49

MXZ-2E53VAHZ
R.V.coil
OFF Refrigerant flow in heating
ON Refrigerant flow in cooling
Union
Ø9.52
Indoor unit A
Ø9.52
Indoor unit B
Union
Strainer
Ø6.35
#100
Indoor unit A
Strainer
Ø6.35
#100
Indoor unit B
Strainer
MAX REFRIGERANT PIPING LENGTH
Piping length each indoor unit (a, b)
Total piping length (a+b)
Bending point for each unit
Total bending point
It is irrelevant which unit is higher.
ADDITIONAL REFRIGERANT CHARGE
Outdoor unit
Refrigerant piping length (one way, 2 unit total)
precharged
(g) 20 m
2,000
Calculation : Xg = 20 g/m x (Refrigerant piping length (m) - 20)
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".
OBH723D
Compressor
High pressure switch
Muffler
Header(Gas)
Stop valve
(with service port)
Sub
muffler
Capillary tube
Ø4.0 x Ø2.8 x 100
LEV A
Stop valve
LEV B
25 m
100
0
Accumulator
Discharge
temperature
thermistor
RT62
4-way valve
Capillary tube
Strainer
#100
Indoor
units
20 m
30 m
20
30
30 m
b
200
Indoor unit A
Indoor unit B
49
Charge pipe
Header (Evaporator)
Outdoor
heat exchanger
Outdoor
heat exchanger
temperature
thermistor
RT68
Defrost
temperature
thermistor
RT61
Strainer
Distributor
#50
a
Outdoor
unit
Outdoor unit union diameter
For
Liquid
Gas
Liquid
Gas
UNIT: mm
Ambient
temperature
thermistor
RT65
Max.
Height
difference
15 m
15 m
10 m
UNIT: mm (inch)
6.35(1/4)
9.52(3/8)
6.35(1/4)
9.52(3/8)