Mitsubishi Electric MUZ-HJ25VA-E2 Service Manual page 17

MUZ-HJ60VA MUZ-HJ71VA
Refrigerant pipe ø 15.88
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe ø 6.35(HJ60)
Refrigerant pipe ø 9.52(HJ71)
(with heat insulator)
MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE
Model
MUZ-HJ25VA
MUZ-HJ35VA
MUZ-HJ50VA
MUZ-HJ60VA
MUZ-HJ71VA
ADDITIONAL REFRIGERANT CHARGE (R410A : g)
Model
MUZ-HJ25VA
MUZ-HJ35VA
MUZ-HJ50VA
MUZ-HJ60VA
MUZ-HJ71VA
Calculation: X g = 20 g/m (Refrigerant piping length (m) - 7)
NOTE : Refrigerant piping exceeding 7 m requires additional refrigerant charge according to the calculation.
OBH648F
Stop valve
Muffler
Strainer
#100
Stop valve Capillary tube
ø4.0×ø2.4×100
Refrigerant piping: m
Max. Length
A
20
30
Indoor
unit
Max. Height
difference
B
Outdoor unit
precharged
5 m 6 m
700
720
1,150 0 0
1,800
1,800
4-way valve
Muffler
#100
Discharge
temperature
thermistor
RT62
Compressor
Capillary tube
ø3.0×ø2.0×200(×4)
LEV
Strainer
Capillary tube
ø4.0×ø2.4×200
Max. Height difference
B
12
15
Max. Length
A
Refrigerant piping length (one way)
7 m 8 m 9 m 10 m
0 20 40
17
Outdoor
heat
exchanger
Defrost
thermistor
RT61
Outdoor heat
exchanger
temperature
thermistor
RT68
R.V. coil
#100
heating ON
cooling OFF
Refrigerant flow in cooling
Refrigerant flow in heating
Piping size O.D: mm
Gas
9.52
12.7
15.88
Outdoor unit
11 m 12 m 13 m
60 80 100 120
Unit: mm
Liquid
6.35
9.52
14 m 15 m 20 m
140 160 260