7
English
Installation Pr
oc
edur
e
Spacing requirements
Space requirements for installation & service.
Construction Standard for Inspection opening
An inspection opening is required for service and unit replace-
ment.
1) If the ceiling is a grid type, an inspection opening is not
required.
2) If the ceiling is plaster board, an inspection opening is
required. The size of the opening will vary based on the height
inside the ceiling.
a. Height is more than 1.64ft: Only “B” [Inspection for PBA] is
applied.
b. Height is less than 1.64ft: Both “A”&”B” are applied.
c. “A”&”B” are inspection opening .
0.79 inch or more
• You must have 0.79 inch or more space between
the ceiling and the bottom of indoor unit to prevent
transmission of noise and vibration from the unit into
the space.
• It is possible to install the unit at an height of between
7.2~8.2 ft from the ground,
if the unit has a duct with a
well defined lenght [11.81 inch or more], to avoid fan motor
blower contact.
• If you install the cassette or duct type indoor unit on the
ceiling with humidity over 80%, you must apply extra
0.39inch of polyethylene foam or other insulation with
similar material on the body of the indoor unit.
Step 3 Optional: Insulating the body
of the indoor unit
Insulation Guide
"
$
#
%
Thickness: more than 0.39 inch unit: inch
Indoor unit
AJ***TNLDCH
35.43*23.62*7.83
A
35.43*23.62
B
35.43*23.62
C
23.62*7.83
D
23.62*7.83
Front/Back
Insulate the front and back side in proper
size at the same time when insulating the
suction duct and discharge duct
• Insulate the end of the pipe and some curved area by
using separate insulator.
• Insulate the discharge and suction part at the same time
when you insulate connection duct.
Unit Width(W)
"A"=W+3.94 inch
Unit D
epth(D
)
"B"=19.69 inch
0.79 inch or more
Содержание AJTNLDCH Series
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