Mitsubishi Electric MXZ-3E54VA-E1 Service Manual page 47

MXZ-4E83VA
R.V.coil
OFF Refrigerant flow in heating
ON Refrigerant flow in cooling
Union
Ø12.7
Indoor unit A
Ø9.52
Indoor unit B
Ø9.52
Indoor unit C
Ø9.52
Indoor unit D
Union
Strainer
Ø6.35
#100
Indoor unit A
Strainer
Ø6.35
#100
Indoor unit B
Strainer
Ø6.35
#100
Indoor unit C
Strainer
Ø6.35
#100
Indoor unit D
MAX REFRIGERANT PIPING LENGTH
Piping length each indoor unit (a, b, c, d)
Total piping length (a+b+c+d)
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, 4 unit total)
precharged
(g) 25 m
2,990
Calculation : Xg = 20 g/m x (Refrigerant piping length (m) - 25)
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
LEV B
LEV C
Stop valve
LEV D
40 m
0 300
Accumulator
Discharge
temperature
thermistor
RT62
4-way valve
Capillary tube
Strainer
#100
25 m
70 m
25
70
55 m 70 m
600 900
47
Charge pipe
Header (Evaporator)
heat exchanger
Outdoor
heat exchanger
temperature
thermistor
RT68
Defrost
temperature
thermistor
RT61
Strainer
Distributor
#50
Indoor
units
a
b
Outdoor
unit
c
d
Outdoor unit union diameter
For
Liquid
Indoor unit A
Gas
Liquid
Indoor unit B
Gas
Liquid
Indoor unit C
Gas
Liquid
Indoor unit D
Gas
UNIT: mm
Outdoor
Ambient
temperature
thermistor
RT65
Max.
Height
difference
15 m
15 m
10 m
UNIT: mm (inch)
6.35(1/4)
12.7(1/2)
6.35(1/4)
9.52(3/8)
6.35(1/4)
9.52(3/8)
6.35(1/4)
9.52(3/8)