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Page 10
mrcool.com
Unit Installation
Installation Location
WARNING
• When installing the air handler, take consideration to minimize the length of refrigerant piping as
much as possible.
• When installing in an area directly over a finished ceiling (such as an attic), installation of an
emergency drain pan is required directly under the unit. See local and state codes for requirements.
• When installing this unit in an area that may become wet, elevate the unit with a sturdy, non-porous
material. In installations that may lead to physical damage (i.e. a garage), it is advised to install a
protective barrier to prevent such damage.
DO NOT install this unit outdoors. This air handler is designed for indoor installation only.
DO NOT operate this product without complete ductwork attached. This air handler is
designed for a complete supply and return ductwork system.
DO NOT install the air handler in a location above or below the condenser that violates the
instructions provided with the condenser. Service clearance is to take precedence. Allow a
minimum of 2 ft (610 mm) service clearance in front of the unit.
DO NOT install the air handler in enclosed areas, such as garages, utility rooms, or parking
areas. Carbon monoxide producing devices (such as an automobile, space heater, gas water
heater, etc.) should not be operated in enclosed areas such as unventilated garages, utility
rooms, or parking areas because of the danger of carbon monoxide (CO) poisoning resulting
from exhaust emissions. If a furnace or air handler is installed in an enclosed area such as a
garage, utility room, or parking area, and a carbon monoxide producing device is operated
therein, there must be direct ventilation to the outside. Adequate ventilation is necessary to
avoid the danger of CO poisoning which can occur if a carbon monoxide producing device
continues to operate in an enclosed area. If these warnings are not followed, carbon
monoxide emission can be (re)circulated throughout the building from the air handler
causing serious illness including permanent brain damage or death.
Fig. 2.1
Fig. 2.2
• If air handler is installed as shown in Fig. 2.1,
the air handler should be concealed in a specific
room or space and make sure the air handler is
not accessible to the general public.
• If air handler is installed as shown in Fig. 2.2,
make sure there is enough space for care and
maintenance, and that the height between the air
handler and ground is above 8 ft (2500 mm). Also
make sure the air handler is not accessible to the
general public.
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