CONDITIONS OF APPLICATION
Basic application guidelines are similar to mid efficiency furnace
applications including:
Must be installed on the positive pressure side of the circulating air
blower
Must be installed in a non-combustible duct or cabinet
The
Heat exchanger must be properly sheeted to direct all airflow over
tubes
and eliminate by-pass air for optimum performance.
No portion of the heat exchanger exposed outside the duct or cabinet
The duct furnace must have an ample supply of combustion air
to the
vestibule / burner compartment.
The Duct furnace must be connected to a properly designed venting
system
to convey flue gases outside of the heating unit and the heated space
to the outdoors and away from combustion air inlet.
Must be applied a
pplied in accordance with manufacturer’s listed input ratings,
maximum and minimum airflows.
