Mitsubishi Electric MXZ-2A30VA - E1 Service Manual page 90

,
MXZ-3A54VA -
E1
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 does not matter which unit is higher.
ADDITIONAL REFRIGERANT CHARGE
Outdoor unit
Refrigerant piping length (one way, 3 unit total)
precharged
40m
(g)
2,700
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, see 17-1.
Indoor unit
class Pipe diameter
Liquid 6.35(1/4)
22/25/35
Gas 9.52(3/8)
Liquid 6.35(1/4)
50
Gas 12.7(1/2)
, ,
E2 E3 E4
Oil separator
Ball valve with
service port
Muffler
Capillary tube
LEV A
Ball valve
Capillary tube
LEV B
Capillary tube
LEV C
50m
0 200
Extension pipe diameter
Liquid 6.35(1/4)
Gas 9.52(3/8)
Liquid 6.35(1/4)
Gas 12.7(1/2)
Compressor
Discharge
temperature
thermistor RT62
Capillary tube
4-way valve
Strainer
LEV E
#100
Power
receiver
Indoor
units
25m
50m
25
50
Indoor unit A
Indoor unit B
Indoor unit C
90
Outdoor heat
exchanger
temperature
thermistor
RT68
Strainer
#100
Distributor
a
b
Outdoor
unit
c
Outdoor unit union diameter
For
Liquid
Gas
Liquid
Gas
Liquid
Gas
UNIT: mm
FAN-OUT
Ambient
temperature
thermistor
RT65
Defrost
thermistor
RT61
Capillary tube
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)