Mitsubishi Electric City Multi PLFY-WL-VEM-E Series Installation Manual page 10

4. Connecting water pipes
B
600
C
E
B
F
en
A
D
8
C
107
200
D
144 60
Fig. 4-8
B
A
Fig. 4-9
A
C D
Fig. 4-10
C
B H
F
E
G
Fig. 4-11
4.5. Installing the optional VALVE KIT
* When performing the unit side installation of the optional VALVE KIT
(PAC-SK04VK-E), perform the following installation (4.5.) and wiring work (5.2.).
* If the optional VALVE KIT (PAC-SK04VK-E) will be installed separately, perform
A the wiring work (5.2.) after performing the installation while referencing the Instal-
lation Manual of the optional VALVE KIT (PAC-SK04VK-E).
Perform attachment of the optional VALVE KIT, wiring work, and connection of
piping to the main unit after installing the unit.
4.5.1. Pre-installation preparation for the optional VALVE KIT
(Fig. 4-8)
Installation space
1. Be sure to perform installation of the VALVE KIT before putting up ceiling material.
2. When installing the VALVE KIT, perform an examination of the ceiling construction
beforehand.
(Please consult with the ceiling contractor.)
3. Be sure to install a ceiling inspection port.
VALVE KIT attachment
1. Be sure to use a level to ensure attachment is horizontal.
2. There is only one attachment position. Attach the VALVE KIT at the location on the
left side as viewed from the indoor unit piping.
* Attachment errors may result in water leakage or malfunctions.
Attach the VALVE KIT in the orientation described on the label attached to the
VALVE KIT.
A Indoor unit
B Ceiling inspection port
C VALVE KIT (Option)
D Water pipe of Indoor unit
4.5.2. Optional VALVE KIT attachment (Fig. 4-9)
Secure the optional VALVE KIT to the screw holes on the side of the unit.
(4 locations)
A Indoor unit
B VALVE KIT (Option)
C Screw (Included with the optional VALVE KIT)
4.5.3. Connecting piping to the optional VALVE KIT
1. Connect outlet pipe D of the indoor unit to inlet pipe E of the VALVE KIT with ø22
piping (procured locally). (Fig. 4-10)
* For the detailed connection method, check "4.2. Water pipe installation for
connection with HBC unit" and "4.3. Water pipe insulation for connection with
hydro unit".
A Indoor unit
B VALVE KIT (Option)
C Inlet pipe of Indoor unit
D Outlet pipe of Indoor unit
E Inlet pipe of VALVE KIT
F Outlet pipe of VALVE KIT
2. Insulate the joint section and exposed section of the piping after connecting the
piping. (Fig. 4-11)
A A Locally procured pipe insulation
B Tighten this location with a band (procured locally)
C Do not separate from the opening
D Wrap overlap: 40 mm or more
E Insulation material (procured locally)
F Unit side insulation material
G Depending on the selected joint, there may be a gap between the unit side pipe cover and
the joint.
If there is a gap, fill in the gap with the pipe covers prepared on-site.
H Piping connection joint (procured locally)