Johnson Controls YVAHP072B31S, Service Manual

Page: 235 / 1796

Service Manual
1-219
INSTALLATION
5. Mounting the Indoor Unit
x
Hoist the indoor unit but do not apply any force against the drain pan (the air outlet portions and the
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two skilled installers.
x
Suspend the unit by handling the suspension
brackets at all four corners of the unit. Do not
apply any pressure onto the polystyrene drain
pan or pan outlets during the installation process.
x
Insert the suspension bolts into the notches of
the suspension brackets to capture the unit.
Secure the unit using nuts and washers. Then
check that the washers serve as stoppers at the
rising parts of the suspension brackets.
NOTE:
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needs to be installed inside the ceiling area
adjacent to the unit. If a false ceiling is already in
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and electrical lines before the unit is installed.
6. Spacial adjustments to accommodate the unit into a false ceiling:
x
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and maintain the mounting position of the unit
in accordance with Items 2. and 3. on the previous pages
within
+3/16
0
inch (
+5
0
mm).
x
The pattern board (template) for the installation and
the checking scale are printed on the packing.
Cut off the checking scale for dimension of opening from
packing to adjust the position of the indoor unit.
Indoor Unit
(Viewed from Bottom Side) Surface of Flange
13/32
to 1-3/8 13/32
to 1-3/8
13/32 to 1-3/
8
13/32 to 1-3/8
Unit: inch
a. False-ceiling applications: Detach the
printed scale from the pattern board
(template). Raise the unit into position
and use this scale for clearance
adjustments between the unit and the
edge of the opening.
b. False-ceiling applications (without
opening): Use the outer edge of the
pattern board (template) to cut an
opening in the false ceiling. Raise the
unit into position and use this scale to
make minute clearance adjustments
as described in Item a.
Pattern Board (Template)
Dimension for Opening
Dimension for Opening
c. Incomplete false-ceiling applications
(panels not in place): Secure the
pattern board (template) to the unit
with the four M6 screws provided and
raise as shown into position. Make
minute clearance adjustments as
ceiling panels are installed.
Pattern Board
(Template)
Dimension for
Opening
Dimension for
Opening
Suspension Bolt
Indoor Unit
Screw (M6)
Ceiling Surface
Pattern Board
(Template)
Indoor Unit
Ceiling
Surface
Checking
Scale for
Dimension
Opening
Check the dimension of
opening within
Max. 1- 3/8 inch (35mm)
Min. 13/32 inch (10mm)
at each side.
Indoor Unit
Checking
Scale for
Dimension
Opening
Adjust this
portion of
the checking
scale to the
ceiling surface.
Adjust this portion
of the checking
scale to the unit
bottom surface.
Suspension Bolts
Suspension
Bracket
Drain Pan