Mitsubishi Electric CITY MULTI PEFY-W20VMA-A Manuel D'installation page 6

7
[Fig. 7.3.1]
B C
A
D
F
E
G
[Fig. 7.3.3]
A B
C
Water pipework is screw
connections
D D D
To outdoor unit
A
End connection (brazing)
B
C HBC unit
D Indoor unit
Twinning pipe (field supply)
E
F Up to three units for 1 branch hole; total capacity: below 80 (but in same mode,
cooling/heating)
[Fig. 7.3.4]
C
A
B D
[Fig. 7.3.5]
A
B
C
F
D
E
6
Locally procured insulating material for pipes
A
Bind here using band or tape.
B
C Do not leave any opening.
D Lap margin: more than 40 mm
Insulating material (field supply)
E
F Unit side insulating material
G Depending on the type of joint selected, a gap
may be left between the pipe cover on the unit
side and the joint. If this is the case, fill the gap
with another pipe cover (not supplied).
E
D D D
F
*1
A Indoor unit
E
Water pipe: From HBC/hydro unit.
B
C Water pipe: To HBC/hydro unit
D Strainer (40 mesh or more)
(field supply)
Shut off valve
E
E
(field supply)
A To outdoor unit
End connection
B
Hydro unit
C
D To main piping
E Indoor unit
Auto air vent valve (Highest point on the water pipe) (supplied)
F
E E E
7.3
[Fig. 7.3.2]
C
A
C
103 95
Note:
*1. Connection of multiple indoor units with one connection
(or joint pipe)
Total capacity of connectable indoor units: Less than 80
•
Number of connectable indoor units: Maximum 3 Sets
•
Selection of water piping
•
Select the size according to the total capacity of indoor units to be installed
downstream.
Please group units that operate on 1 branch.
•
B
A Water pipe: To HBC/hydro unit
B Water pipe: From HBC/hydro unit
Pipe-holding sheet metal
C