Hitachi P-GP160NAP Installation & Operation Manual page 21

INSTALLATION
Electrical box
Refrigerant pipe
connections
U-shaped hook
Stamp
"Ref. Pipe
"
?
N O T E
Securely fit the corner position for the refrigerant pipe connection at
the indoor unit with the position stamped as "Ref. Pipe
Otherwise, if may cause air leakage.
7 Check that part Ⓐ of the air panel is contacting the ceiling as
shown in the right figure. For confirmation, check visually from
the notch Ⓑ. If it does not contact, adjust the mounting height
of the indoor unit so that it contacts. There is a gap in the
outermost circumference of the panel, but it is not abnormal.
A Ceiling contact part
*
10
* The clearance may vary depending on
the condition of the ceiling material.
Notch
B
?
N O T E
• The standard installation dimension between the indoor unit under
surface for the false ceiling surface is 40mm (+5mm). If the suspended
unit is not consistently level and the position is not correct, the air
panel can not be installed correctly.
• If the air panel is mounted with an optional accessory, refer to the
installation and maintenance manual for an optional accessory to
assure proper installation.
11 PMML0568 rev.0 - 01/2021
Indoor unit
Mounting plate
Long screw
(Q'ty: 4pcs.)
Air panel
C-shaped hinges
Check position
Notch
B
?
N O T E
• Firmly tighten the long screws. If the long screws are tightened
insufficiently, it may cause the following failures.
Air leakage
Smudge
Dewing
• When there is still the gap even after tightening firmly the long screws
sufficiently, readjust the height of the indoor unit.
No gap shall exist.
• If a gap is still remains after securing all screws, readjust the height
of the unit.
• The indoor unit height is adjustable from the corner hole if the
levelness of the indoor unit, the drain piping, etc. are not affected by
".
the adjustment.
Wrench
?
N O T E
The significant height adjustment will cause water leakage from the drain
pan.
8 If using a forming agent after installing the air panel, avoid
touching the forming agent to the air panel.
!
C A U T I O N
If the forming agent is touched to the air panel, it may cause the breakage
and the falling down the air panel. In this case, completely wipe off the
touched forming agent.