Table des Matières
Publicité
Radial thickness Radial thickness
ø12.7
1.0
1.2
1.0
ø22.2
1.0
ø1
1.0
1.0
ø31.75
1.1
1.2
conditioner.
6
7
Line branch
model
model
More than 73 and
Less than 72 in total
Header branch
Total heat source model
Total heat source model
8
To the heat source unit
To the heat source
unit
9
0 Charge the system using liquid refrigerant.
a Never use refrigerant to air purge. Always evacuate using a vacuum
pump.
b
c
d Braze only with non-oxided material. Failure to do so may damage the
compressor. Braze using nitrogen purge.
Do not use any commercially available anti-oxidizing agent, because it
may cause pipe corrosion and degrade the refrigerant oil.
Contact Mitsubishi Electric for more details.
e Never perform piping connections when raining.
Pipe type
32
32
32
model
model
total
10 branching
CAP
When servicing, always
Warning:
When installing and relocating the unit, do not charge the system with any
Caution:
Do not use the tools shown below used with conventional refrigerant.
(Gauge manifold, charge hose, gas leak detector, check valve,
refrigerant charge base, vacuum gauge, refrigerant recovery
equipment)
Manage tools used for R410A carefully.
deteriorate.
Never use existing refrigerant piping.
Store the piping to be used during installation indoors and keep both
ends of the piping sealed until just before brazing.
Do not use a charging cylinder.
Do not use special detergents to wash the piping.
9.2. Refrigerant piping system
[Fig. 9.2.1] (P.4, P.6 - 7)
Heat source model
Gas side
Liquid pipe
Model number
Joint
Heat source twinning kit
A Heat source unit
C Indoor unit
E Heat source twinning kit
B
C
[Fig. 9.2.2] (P.5 - 7)
Heat source model
Liquid pipe
Model number
Heat source twinning kit
A Heat source unit
C
E
G Heat source twinning kit
Liquid side
Gas pipe
Downstream unit model total
The 1st
B 1st branch
D Cap
F Header
Gas pipe
Downstream unit model total
B
D
F
25
Publicité
Chapitres
Table des Matières
