(Mar, 2012)
CeilAiR OHS Series Installation, Operation & Maintenance Manual
Air Technology Systems, Inc.
2-2
CAUTION
When moving the unit, it must be kept level and in
the horizontal position to prevent damage.
2.4 Mounting
CeilAiR
OHS systems are designed for ceiling
mounting in a suspended ceiling grid (spot cooler) or
above the suspended ceiling for ducted systems.
NOTE
Do not install the A/C system directly above
electronic equipment which may hinder
serviceability.
2.4.1 Indoor Equipment (See Figure 1)
CeilAiR
OHS systems use a frame and panel
confi guration for unit rigidity and full service
accessibility while the unit is mounted in place.
The units are lifted into place from underneath and
secured into place using all-thread rods passing
through rubber grommets or a 4” x 4” neoprene cork
pad in the mounting arms on the sides of the unit. All-
thread, nuts and washers (fi eld supplied by others)
must be secured so they do not loosen.
Before mounting the unit, ensure the mounting struc-
ture is able to support the weight of the equipment.
Refer to the weight table provided on the installation
drawing. Locate the mounting bolt holes or match drill
through the support locations as needed and secure
the unit with suitable hardware for the application.
An auxiliary drain pan is recommended and can be
mounted directly under the cabinet (only on ducted
models).
2.4.2 Outdoor Equipment
Install remote condensers/condensing units in a se-
cure location where the unit cannot be tampered with
and the power service switch cannot be inadvertently
turned off. Locate the remote condenser/condens-
ing unit where the fan is not likely to draw dirt and
debris into the coil fi ns. There should be at least 24
inches of clearance around the condenser to ensure
adequate airfl ow to the coil.
Secure the condenser/
condensing unit so the system will not move during
operation. Refer to the installation drawing for the
non-charged system weight. It is recommended that
the remote condenser/condensing unit be mounted
with vibration mounts to reduce the amount of vibra-
tion transmitted to the mounting surface.
2.4.3 Controls
NOTE
All thermostats/controls should not be located
near a doorway, supply air register or area
where they would be exposed to direct sunlight
or other false heat sources.
2.4.3.1 A-Tech-1.1/1.2 Programmable Thermostat
WARNING
SATS supplied thermostats/controls do not
contain mercury. Mercury is toxic and may
be hazardous to health. Any replacement
thermostats containing mercury must be
disposed of properly. Contact local authorities
for disposal information.
(BY OTHERS)
Figure 1-
Typical
Installation
Note: Equipment
must be level
to operate
properly.
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