Mitsubishi Electric CITY MULTI PUMY-P NKMU Série Manuel D'installation page 6

A
B
a
C
A+a+b+c+d
L = A+d
H
h
A
L
B
a b c
C C
C
A
45° ±2°
A Flare cutting dimensions
B Flare nut tightening torque
A (Fig. 4-2)
Flare dimensions
Copper pipe O.D.
B (Fig. 4-2)
Copper pipe O.D. Flare nut O.D.
A
A+B+C+a+b+c+d
L = A+B+C+d
= B+C+d
H
h
L
B C d
b c
C C
C
= d
A
B : First Branch
C : Indoor unit
d
C
B (inch)
C
D
Tightening torque
A
A Die
B Copper pipe
B
A
A Liquid pipe
B, C, D
C Total capacity of indoor units
a, b, c, d, e, f
D Model number
P06, P08, P12, P15, P18
P24, P30, P36, P48, P54
P72
E Branch kit model
CMY-Y62-G-E
F 4-Branching header
CMY-Y64-G-E
Fig. 4-1 is a sample of piping system.
is installed, or condensation may occur on the surface of the insulation material.
* When the refrigerant piping is used in locations subject to high temperature and
humidity such as in the attic, further addition of insulation may be required.
the indoor unit and insulation material as well as to the net between the insulation
(Condensation forming on the piping may result in condensation in the room or
burns when contacting the piping.)
A
completed.
P06-P18
Gas side Pipe size
Liquid side Pipe size
When bending the pipes, be careful not to break them. Bend radius of 100 mm
Make sure the pipes do not contact the compressor. Abnormal noise or vibration
may result.
1 Pipes must be connected starting from the indoor unit.
Flare nuts must be tightened with a torque wrench.
2 Flare the liquid pipes and gas pipes and apply a thin layer of refrigeration oil (Ap-
plied on site).
pipes.
Table 1 (Fig. 4-3)
Copper pipe O.D.
B Gas pipe
A Liquid pipe B Gas pipe
A Liquid pipe B Gas pipe
G 8-Branching header
CMY-Y68-G-E
B
C
D
Indoor unit Outdoor unit
P24-P54 P72 P60
Clutch type
-