Mitsubishi Electric MXZ-2D33VA, Service Manual, Page: 81 / 538

81
R.V.coil
OFF Refrigerant flow in heating
ON Refrigerant flow in cooling
Compressor
Oil separator
High pressure switch
Ø6.35
Ø6.35
Ø9.52
Ø12.7
Indoor unit A
Accumulator
Ø6.35
LEV A
Ø9.52
2-way
solenoid valve
Distributor
Strainer #100
Union
Union
Header(Gas)
Stop valve
Strainer
Strainer
#50
Strainer
#50
#100
Header(Evaporator)
Charge pipe
Capillary tube
Capillary tube
Ø2.5 x Ø0.6 x 1000
Ø4.0 x Ø2.8 x 100
Ø6.35
Ø6.35
Ø9.52
Ø9.52
Compressor shell
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
Outdoor
heat exchanger
4-way valve
Stop valve
(with service port)
Indoor unit B
Indoor unit C
Indoor unit E
Ø9.52
Indoor unit D
Indoor unit F
Indoor unit A
Indoor unit B
Indoor unit C
Indoor unit D
Indoor unit E
Strainer #100
Strainer #100
Strainer #100
Strainer #100 LEV B
LEV E
Ø6.35
Indoor unit F
Strainer #100
LEV F
LEV D
LEV C
a
b
c
d
Outdoor
unit
Indoor
units
15 m
10 m
15 m
Refrigerant piping length (one way, 5 unit total)
Calculation : Xg = 20 g/m x (Refrigerant piping length (m) - 30)
e
f
Max.
Height
difference
Outdoor unit
precharged
(g)
50 m
400
40 m
200
4,000
60 m
600
70 m
800
80 m
1000
MXZ-6D122VA
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".
Piping length each indoor unit (a, b, c, d, e) 25 m
Total piping length (a+b+c+d+e) 80 m
Bending point for each unit 25
Total bending point 80
MAX REFRIGERANT PIPING LENGTH
UNIT: mm (inch)
Outdoor unit union diameter Outdoor unit union diameter
For For
Indoor unit A
Liquid 6.35(1/4)
Indoor unit D
Liquid 6.35(1/4)
Gas 12.7(1/2) Gas 9.52(3/8)
Indoor unit B
Liquid 6.35(1/4)
Indoor unit E
Liquid 6.35(1/4)
Gas 9.52(3/8) Gas 9.52(3/8)
Indoor unit C
Liquid 6.35(1/4)
Indoor unit F
Liquid 6.35(1/4)
Gas 9.52(3/8) Gas 9.52(3/8)
It is irrelevant which unit is higher.
ADDITIONAL REFRIGERANT CHARGE
OBH626K