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Heat Commander Furnace Installation and Operation Manual
33
combustion air. The fresh air supply adapter can be mounted on either side of the unit (left
or right) to allows you to choose the most convenient side.
Component provided with the furnace for the installation of a fresh air supply
1 Fresh air supply
adapter 5’’ (13 mm) (A)
1 Fresh air cover
(B)
12 Type A #10 black screws
(C)
- Indirect combustion air supply:
o New combustion air can be brought into a pipe located within approximately 12" (305
mm) of the unit. If the pipe is too close to the furnace, it may interfere with its
operation;
o The recommended diameter of the outside air intake pipe is 5" (127 mm);
o Mechanical ventilation system: if the house is equipped with a ventilation system (air
exchanger or heat recovery), the ventilation system may provide sufficient auxiliary
air to the furnace. Otherwise, the owner should be informed that the ventilation
system may have to be rebalanced by a ventilation technician after the installation of
the furnace.
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