Ceiling Cassette Air Handler Installation Manual
WARNING
Do not install the unit in an area where
ammable materials are present due to risk of
explosion resulting in serious injury or death.
If the basis underneath the unit is not strong
enough to support the weight of the unit,
the unit could be fall out of place and cause
serious injury.
Fig 4.1
Page 9
Revised 5/14/2020
4
Selecting Installation Site
When the conditions in the ceiling are exceeding
86°F and a relative humidity of 80%, or when
fresh air is inducted into the ceiling, an additional
insulation is required (minimum 0.4in / thickness,
polyethylene foam).
1. Select an installation site where the following
conditions are fullled and that meets your
customer's approval.
• Where optimum air distribution can be ensured.
• Where nothing blocks air passage.
• Where condensate water can be properly
drained.
• Where the ceiling is level, not noticeably on an
incline.
• Where sucient clearance for maintenance and
service can be ensured.
• Where there is no risk of ammable gas leaking.
• The equipment is not intended for use in a
potentially explosive atmosphere.
• Where piping between indoor and outdoor units
does not exceed the allowable limit. (Refer to
the installation manual of the outdoor unit.)
• Keep indoor unit, outdoor unit, inter unit wiring
and remote control wiring at least 3 feet away
from televisions and radios. This is to prevent
image interference and noise in those electrical
appliances. (Noise may be generated depending
on the conditions under which the electric wave
is generated, even if proper distance is kept.)
• When installing the wireless remote control kit,
the distance between wireless remote control
and indoor unit might be shorter if there are
uorescent lights that are electrically started in
the room. The indoor unit must be installed as
far away as possible from uorescent lights.
2. Ceiling height
Install this unit where the height of bottom panel is
more than 8' so that the user cannot easily touch.
Indoor Unit Installation
2
2
1
39.4in
39.4in
39.4in
39.4in
39.4in
39.4in
98.4in
10.2in
11.4in
1
Air inlet
2 Air outlet
3. Use Threaded Rod for Installation
Use threaded rod for installation. Check whether
the ceiling is strong enough to support the weight
of the indoor unit. If there is a risk, reinforce the
ceiling before installing the unit. Space required for
installation. See Fig. 4.4 on the next page for details.
Indoor Unit
Installation