7
INSTALLATION STEPS
Step 1 — Receiving Equipment and Checking Job Site
(CAUTION) The Acadia outdoor unit is heavy. Take the necessary precautions and use appropriate equipment to move and
install.
UNPACK THE ACADIA OUTDOOR UNIT
Move to the final location. Remove the carton, taking care not to damage the Acadia outdoor unit or indoor air handler unit.
INSPECT EQUIPMENT
Check over both the Acadia outdoor unit and the indoor air handler unit for any signs of shipping damage. If the shipment is
damaged or incomplete, file a claim with the shipping company as soon as possible.
Check the Acadia outdoor unit for nitrogen pressure using a pressure gauge. The Acadia outdoor unit should have a charge of 50 PSI
(+/- 10%) of dry nitrogen. If the nitrogen charge is low or there is a lack of nitrogen pressure, DO NOT install the Acadia outdoor
unit; contact Hallowell International Technical Support. Consult the AHU manual for pressure for the indoor coil.
Step 2 — Install on a Solid, Level Mounting Pad or Foundation Rack
Mount the Acadia outdoor unit on a solid, level, foundation pad with a proper sub-base and proper drainage to ensure the unit will
not shift during its lifetime.
(NOTE) See (Fig. 10, Appendix D) for appropriate mounting configurations of the Acadia outdoor unit.
ELEVATE THE ACADIA OUTDOOR UNIT
(CAUTION) Do not block the drainage holes under the outdoor coil. Ice buildup will damage the coil. Concrete, wood, or any
other blocking SHOULD NOT BE USED to elevate the unit.
(NOTE) Accumulation of water and ice in the base pan may cause equipment damage. Elevate the unit per local climate and
code requirements to provide clearance above the estimated snowfall levels and ensure adequate drainage of the unit. Use only
Hallowell Approved snow stands in areas where prolonged freezing temperatures are encountered. Ensure that the outdoor coil
drainage holes are not obstructed by the snow stand. Ensure the mounting pad will not shift or swell from seasonal frost heaves.
The Acadia outdoor unit must be mounted on Hallowell Approved snow stands to allow water to drain during a defrost cycle
and so ice build-up will not interfere with the unit operation. The snow legs should be mounted on the support rails of the
system and not on the base pan; this allows the water to drain out of the unit during defrost and will not cause flex and
distortion to the cabinet. The base pan is not designed to support the weight of the system.
The Acadia outdoor unit must be placed on a secure and level mounting pad or rack to prevent movement due to frost or ice
build-up and to allow for proper drainage of the unit, and placed above the average snowfall line in the area of installation.
Due to icing on the outdoor coil, the Acadia outdoor unit must be mounted so that run off of water during defrost will not cause
a safety issue when the water refreezes. Example: Do not set the Acadia outdoor unit so that defrost condensate will run across
a walkway.
The Acadia outdoor unit SHOULD NOT be placed under or near eaves, roof drains, or under roof pitches where ice, rain, or snow
may drop, where icicles may form, or where any other debris may fall on top of and/or damage unit.
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