EN-3
1-3. SPECIFICATIONS
*1 Connect to the power switch which has a gap of 3 mm or more
when open to interrupt the source power phase. (When the
power switch is shut off, it must interrupt all phases.)
*2 Use wires in conformity with design 60245 IEC 57.
*3 Never use pipes with thickness less than specified. The pressure
resistance will be insufficient.
*4 Use a copper pipe or a copper-alloy seamless pipe.
*5 Be careful not to crush or bend the pipe during pipe bending.
*6 Refrigerant pipe bending radius must be 100 mm or more.
*7 If pipe length exceeds 7 m, additional refrigerant charge is
required. (No additional charge is required for pipe length less
than 7 m.)
Additional refrigerant = A × (pipe length (m) – 7)
*8 Insulation material : Heat resisting foam plastic 0.045 specific
gravity
*9 Be sure to use the insulation of specified thickness. Excessive
thickness may cause incorrect installation of the indoor unit and
insufficient thickness may cause dew drippage.
(KW25, 35, 42/KW50, 60)
Pipe length and height difference
Max. pipe length
20/30 m
Max. height difference
12/15 m
Max. number of bends *5, *6
10
Refrigerant adjustment A *7
20 g/m
Insulation thickness *8, *9
8 mm
Model
Power supply *1
Wire specifications *2
Pipe size
(thickness *3, *4)
Maximum amount of
refrigerant charge
Indoor unit
Outdoor unit
Rated
Voltage
Frequency
Breaker
capacity
Power supply
(3-core)
Indoor/outdoor
connecting wire
Gas / Liquid
MFZ-KW25VG
MUFZ-KW25VG
230 V
50 Hz
10 A
1.0 mm
2
4-core
2.0 mm
2
ø9.52 / 6.35 mm
(0.8 mm)
1260g
MFZ-KW35VG
MUFZ-KW35VG
MFZ-KW42VG
MUFZ-KW42VG
12A
1.5 mm
2
MFZ-KW50VG
MUFZ-KW50VG(HZ)
16 A
2.0 mm
2
ø12.7 / 6.35 mm
(0.8 mm)
1760g
MFZ-KW60VG
MUFZ-KW60VG(HZ)
20 A
RH79A056H01_4th.indd 3
2020/08/19 12:50:18
