Mitsubishi Electric MXZ-2C30VA Service Manual page 38

MXZ-3C54VA MXZ-3C68VA
R.V. coil
Refrigerant flow in cooling
OFF
ON Refrigerant flow in heating
Indoor unit
C
Indoor unit
B
Indoor unit
A
Indoor unit
A
Strainer
#100
Indoor unit
B
Strainer
#100
Indoor unit
C
Strainer
#100
MAX REFRIGERANT PIPING LENGTH
Piping length each indoor unit (a, b, c)
Total piping length (a+b+c)
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, 3 unit total)
precharged
40m
(g)
2,700
0
Calculation : Xg = 20 g/m x (Refrigerant piping length (m) - 40)
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".
OBH584E
High-pressure switch
(MXZ-3C68VA only)
Oil separator
Stop valve with
service port
Muffler
Capillary tube
LEV A
Capillary tube
Strainer
#100
LEV B
Capillary tube
LEV C
3C54
25m
50m
25
50
50m
200
Compressor
Discharge
temperature
thermistor RT62
Capillary tube
4-way valve
Stop valve
LEV E
Power
receiver
Indoor
units
3C68
25m
60m
25
50
60m
400
38
Outdoor heat
exchanger
temperature
thermistor
RT68
Strainer
#100
Distributor
a
b
Outdoor
unit
c
Outdoor unit union diameter
For
Liquid
Indoor unit A
Gas
Liquid
Indoor unit B
Gas
Liquid
Indoor unit C
Gas
UNIT: mm
FAN-OUT
Ambient
temperature
thermistor
RT65
Defrost
thermistor
RT61
Capillary tube
Max.
Height
difference
15m
15m
10m
UNIT: mm (inch)
6.35(1/4)
9.52(3/8)
6.35(1/4)
9.52(3/8)
6.35(1/4)
9.52(3/8)