HeatPack Furnace Installation and Operation Manual
27
WARNING
ACORDING TO THE NATIONAL BUILDING CODE, THE BTU/H PROVIDED BY AN
OUTLET ON THE PLENUM MUST NOT EXCEED 10,250 BTU/H (3KW) AND THE
HOT AIR TEMPERATURE AT THE OUTLET OF A SECONDARY DUCT SHOULD
NOT EXCEED 158 °F (70 °C).
7.3.2 Static pressure calibration
Once your hot air distribution system is installed, make sure to measure the static pressure
in the plenum. Adjust the opening at the end of each of distribution duct with a shutter (not
included) until you get a static pressure 0.2" W.C. (50 Pa) at the plenum.
7.4 Air return system and filter
The installation of an optional air return duct connected to the blower housing will improve
the air circulation throughout the house (see
Appendix 3: Optional Air return adapter
(AC01392).
The use of the air filter option is also recommended. The filter option will significantly
reduce dust circulation within the hot air duct and will prevent obstruction of the blower and
the ducts. (see
Appendix 2: Optional air filters (AC01390, AC01391))
Take note that the static pressure calibration should be re-done after installing
filters.
8 Combustion air
WARNING
•
SUFFICIENT COMBUSTION AIR MUST BE AVAILABLE AT ALL TIMES; LACK
OF COMBUSTION AIR CONSTITUTES A DANGER.
•
A CARBON MONOXIDE (CO) DETECTOR/ALARM IS REQUIRED IN THE ROOM
IN WHICH THE FURNACE IS INSTALLED.
A fresh air supply may be necessary to prevent solid fuel units from rejecting products of
combustion into the house.
Additional combustion air can be provided following the following methods, provided that
they satisfy chapter 4 of the
CSA B365 standard for Canada
:
Direct combustion air supply:
The HeatPack is
not certified
to be connected directly to a new combustion air supply.
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 4" (102 mm);
Summary of Contents for HeatPack DF00500
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