Mitsubishi Electric CITY MULTI PFFY-WL20VCM-A Manuel D'installation page 4

6
[Fig. 6.3.1]
C
A Locally procured insulating material for
B
A
B Bind here using band or tape.
C Do not leave any opening.
D
F
E D Lap margin: more than 40 mm
G
E Insulating material (field supply)
F Unit side insulating material
G There may be a gap between the pipe
[Fig. 6.3.3]
A
B
Water pipework is
C screw connections
D
D D
A To outdoor unit
B End connection (brazing)
C HBC controller
D Indoor unit (without valve)
E Twinning pipe (field supply)
F Up to three units for 1 branch hole;
total capacity: below 80 (but in same mode, cooling/heating)
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.
[Fig. 6.3.5]
C
A
B D
[Fig. 6.3.6]
A
B
C
D
G
H
E
4
pipes
cover on the unit side and the joint,
depending on the joint selected. If so, fill
the gap with the field-supplied pipe cover.
E
D D
D
*1
F
E A Indoor unit
B Water pipe: From HBC/hydro unit
C Water pipe: To HBC/hydro unit
D Strainer (40 mesh or more) (field supply)
E Shut off valve (field supply)
E
A To outdoor unit
B End connection
C Hydro unit
D To main piping
E Indoor unit without valve
F
E ' Indoor unit with valve
F Auto air vent valve (Highest point on the water pipe) (supplied)
G
G Optional VALVE KIT
E E´ E´
H Pipe length between indoor unit without valve and optional VALVE KIT is less than 5 m.
6.3
[Fig. 6.3.2]
(Unit: mm)
98
65
A
C
B
[Fig. 6.3.4]
A
B
C
G
G
H
D D
A To outdoor unit
B End connection (brazing)
C HBC controller
D Indoor unit (without valve)
D ' Indoor unit (with valve)
E Twinning pipe (field supply)
F Up to three units for 1 branch hole;
total capacity: below 80 (but in same mode, cooling/heating)
G Optional VALVE KIT
H Pipe length between indoor unit without valve and optional
VALVE KIT is less than 5 m.
A Water pipe: To HBC/VALVE KIT
B Water pipe: From HBC/hydro unit
C Pipe-holding sheet metal
Water pipework is
screw connections
E
G
D´ D D´ D´
*1
F