Mitsubishi Electric MUZ-EF25VG Service Manual page 13

MUZ-EF50VG
Refrigerant pipe ø 9.52
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe ø 6.35
(with heat insulator)
MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE
Model
MUZ-EF25/35VG(H)
MUZ-EF42VG
MUZ-EF50VG
ADDITIONAL REFRIGERANT CHARGE (R32: g)
Outdoor unit
Model
precharged
MUZ-EF25VG(H)
MUZ-EF35VG(H)
MUZ-EF42VG
MUZ-EF50VG
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.
OBH832
Muffler
4-way valve
Muffler
Stop valve
(with service port)
Discharge
temperature
thermistor
RT62
Stop valve Capillary tube
(With strainer) ø4.0×ø2.4×240
Refrigerant piping: m
Max. Length A
20
30
Indoor
unit
Max. Height
difference
B
7 m 8 m
620
740 0 20
1,050
Outdoor heat
exchanger
temperature
thermistor
RT68
Compressor
Capillary tube
ø3.0×ø2.0×210(×2)
LEV
Strainer
#100
Max. Height difference B
12
15
Max. Length
A
Outdoor unit
Refrigerant piping length (one way)
9 m 10 m 11 m 12 m
40 60 80 100
13
Outdoor
heat
Ambient
exchanger
temperature
thermistor
RT65
Defrost
thermistor
RT61
R.V. coil
heating ON
cooling OFF
Refrigerant flow in cooling
Refrigerant flow in heating
Piping size O.D: mm
Gas
9.52
13 m 14 m 15 m
120 140 160
Unit: mm
Liquid
6.35
20 m 30 m
-
260
460