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h.
Blower and vestibule access panels must be in place
on the furnace at all times.
i.
The furnace heat exchanger, components, duct
system, and evaporator coils must be thoroughly
cleaned following final construction clean−up.
j.
Air filters must be replaced upon construction
completion.
k.
All furnace operating conditions (including ignition,
input rate, temperature rise and venting) must
be verified in accordance with these installation
instructions.
EQUIPMENT
MAY
COMPONENT FAILURE AS A RESULT OF FAILURE TO
FOLLOW THE ABOVE INSTALLATION INSTRUCTIONS.
FAILURE TO FOLLOW THE ABOVE INSTALLATION
INSTRUCTIONS
VOIDS
EQUIPMENT
LIMITED
DISCLAIMS ALL LIABILITY IN CONNECTION WITH
INSTALLER'S FAILURE TO FOLLOW THE ABOVE
INSTALLATION INSTRUCTIONS.
NOTWITHSTANDING THE FOREGOING, INSTALLER
IS RESPONSIBLE FOR CONFIRMING THAT THE USE
OF CONSTRUCTION HEAT IS CONSISTENT WITH
THE POLICIES AND CODES OF ALL REGULATING
ENTITIES. ALL SUCH POLICIES AND CODES MUST BE
ADHERED TO.
General
These units should not be installed in areas normally
subject to freezing temperatures.
These instructions are intended as a general guide and do
not supersede local codes in any way. Consult authorities
having jurisdiction before installation.
In addition to the requirements outlined previously, the
following general recommendations should be considered
when installing one of these furnaces:
•
Place the furnace as close to the center of the air
distribution system as possible. The furnace should
also be located close to the vent termination point.
•
When the furnace is installed in an attic or other
insulated space, keep insulation away from the
furnace.
•
When the furnace is installed in an unconditioned
space, consider provisions required to prevent freezing
of condensate drain system.
Page 6 of 73
EXPERIENCE
PREMATURE
THE
MANUFACTURER'S
WARRANTY.
ALLIED
CAUTION
Installation
Setting Equipment
Do not install the furnace on its front or its back. See
Figure 5. Do not connect the return air ducts to the
back of the furnace. Doing so will adversely affect the
operation of the safety control devices, which could
result in personal injury or death.
Select a location that allows for the required clearances
that are listed on the unit nameplate. Also consider gas
supply connections, electrical supply, vent connection,
condensate trap and drain connections, and installation
AIR
and service clearances (24 inches [610 mm] at unit
front). The unit must be level from side to side, for proper
operation. It is recommended to tilt the unit slightly toward
the drain to insure proper drainage. See Figure 4.
AIR FLOW
FRONT VIEW
Unit must be level side-to-side. Unit may be positioned
from level to 1/2" toward the front to aid in draining.
Figure 4. Setting Equipment
Units with 1/2 hp blower motor are equipped with three
flexible legs and one rigid leg. The rigid leg is equipped
with a shipping bolt and a flat white plastic washer (rather
than the rubber mounting grommet used with a flexible
mounting leg). See Figure 6. The bolt and washer must
be removed before the furnace is placed into operation.
After the bolt and washer have been removed, the rigid
leg will not touch the blower housing.
Issue 2241
WARNING
AIR FLOW
AIR FLOW
SIDE VIEW
SIDE VIEW
Figure 5.
NOTE
1/2"
max.
507029-05
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