Service manual
20
Max. Length
A
Max. Height
difference
B
Indoor
unit
Outdoor unit
MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE
Refrigerant piping: m Piping size O.D: mm
Max. Length A Max. Height difference B Gas Liquid
MUZ-GE25/35/42 20 12 9.52
6.35MUZ-GE50
30 15
12.7
MUZ-GE60
15.88
MUZ-GE71 9.52
ADDITIONAL REFRIGERANT CHARGE (R410A: g)
Model
Outdoor unit
precharged
Refrigerant piping length (one way)
5 m 6 m 7 m 8 m 9 m 10 m 11 m 12 m 13 m 14 m 15 m 20 m
MUZ-GE25 800
0 0 0 30 60 90 120 150 180 210 240 390
MUZ-GE35/42 1,150
Calculation: X g = 30 g/m × (Refrigerant piping length (m) - 7)
Model
Outdoor unit
precharged
Refrigerant piping length (one way)
7 m 10 m 15 m 20 m 25 m 30 m
MUZ-GE50 1,550 0 60 160 260 360 460
Calculation: X g = 20 g/m × (Refrigerant piping length (m) – 7)
Model
Outdoor unit
precharged
Refrigerant piping length (one way)
7 m 10 m 15 m 20 m 25 m 30 m
MUZ-GE60 1,550 0 0 100 200 300 400
Calculation: X g = 20 g/m × (Refrigerant piping length (m) – 10)
Model
Outdoor unit
precharged
Refrigerant piping length (one way)
7 m 10 m 15 m 20 m 25 m 30 m
MUZ-GE71 1,900 0 0 275 550 825 1,100
Calculation: X g = 55 g/m × (Refrigerant piping length (m) – 10)
NOTE: Refrigerant piping exceeding 7 m requires additional refrigerant charge according to the calculation.
MUZ-GE71VA
Outdoor
heat
exchanger
Flared connection
Defrost
thermistor
RT61
Discharge
temperature
thermistor
RT62
Flared connection
Stop valve
Stop valve
(with service port)
Capillary tube
ø
4.0
×
ø
2.4
×
100
Refrigerant flow in cooling
Compressor
4-way valve
Refrigerant flow in heating
Refrigerant pipe
ø
15.88
(with heat insulator)
Refrigerant pipe
ø
9.52
(with heat insulator)
LEV
R.V. coil
heating ON
cooling OFF
Muffler
#100
Strainer
#100
Outdoor heat
exchanger
temperature
thermistor
RT68
Ambient
temperature
thermistor
RT65
Strainer
#100
Unit: mm