Mitsubishi Electric MUZ-SF25VE-E1 Service Manual page 12

MUZ-SF50VE MUZ-SF50VEH
Refrigerant pipe ø 12.7
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe ø 6.35
(with heat insulator)
MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFEFRENCE
MUZ-SF25/35/42
MUZ-SF50
ADDITIONAL REFRIGERANT CHARGE (R410A: g)
Model
MUZ-SF25
MUZ-SF35
MUZ-SF42
Calculation: X g = 30 g/m × (Refrigerant piping length (m) - 7)
Outdoor unit
Model
precharged
MUZ-SF50
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.
OBH629A
Muffler
#100
4-way valve
Stop valve
(with service port)
Discharge
temperature
thermistor
RT62
Compressor
Strainer
#100
Muffler
Stop valve Capillary tube
ø4.0×ø2.4×100
Refrigerant piping: m
Max. Length A Max. Height difference B
20
30
Indoor
unit
Max. Height
difference
B
Outdoor unit
precharged
7 m
700
800 0
1,150
7 m
1,550 0
Defrost
thermistor
RT61
Capillary tube
ø3.0×ø2.0×200(×4)
LEV
Strainer
#100
Capillary tube
ø4.0×ø2.4×200
12
15
Max. Length
A
Outdoor unit
8 m 9 m 10 m 11 m
30 60 90 120
Refrigerant piping length (one way)
10 m 15 m
60 160
12
Outdoor
heat
Ambient
exchanger
temperature
thermistor
RT65
Outdoor heat
exchanger
temperature
thermistor
RT68
R.V. coil
heating ON
cooling OFF
Refrigerant flow in cooling
Refrigerant flow in heating
Piping size O.D: mm
Gas
9.52
12.7
12 m 13 m 14 m
150 180 210
20 m 25 m
260 360
Unit: mm
Liquid
6.35
15 m 20 m
240 390
30 m
460