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All installations and services must be performed by qualified service personnel.
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The following safety information should be read, understood, and followed by the installer.
1. Use only with type of gas approved for this furnace. Refer to furnace rating plate.
2. Connect this furnace to an approved vent system only. Combustion products must be carried outdoors. Refer to
Section III, D thru H, of this manual.
The following pages contain various warnings and cautions found throughout the Thermo Pride Highboy and
Dual Poise Condensing Gas Furnace Manual. Please read and comply with the statements below.
: This furnace is not to be used for temporary heating of buildings or structures under construction.
: These high efficiency condensing furnaces are not certified for and shall not be vented into a
standard or any type of chimney.
: These furnaces may not be common vented with any other appliance.
: The vent and air intake elbows must be kept away from bushes, shrubs or any vegetation that may
restrict the flow of flue products. It must also be kept clear of any leaves, weeds or other combustible materials.
Keep the vent hood clear of snow. Avoid locating the terminals in areas where standing water or condensate
drippage may be a problem.
: This CHB1/CDB1 furnace has been designed to be installed as a direct vent system. The failure to
install the vent/air intake system as specified in these instructions will void the heat exchanger warranty and may
result in property damage, personal injury or loss of life.
: Outside combustion air must not come from an area that is directly adjacent to a pool, hot tub or
spa. Measures should be taken to prevent the entry of corrosive chemicals or vapors to the combustion and
ventilation air supply. Such chemicals include but are not limited to chlorinated and/or fluorinated hydrocarbons
such as found in refrigerants, aerosol propellants, dry cleaning fluids, degreasers and removers. Other harmful
compounds may come from bleaches, air fresheners or mastics. Vapors from such products can form acid
compounds when burned in a gas flame. Should acid compounds form in your furnace; it may reduce the life of
the furnace.
: Because of the potential of odorant fade, a gas leak may not be detected by smell. If this furnace
is installed below grade, contact your gas supplier for a gas detector.
: Turn off power to furnace before it is placed into service. The gas piping system must have been
leak tested by a qualified heating contractor.
: It may be necessary to purge the air out of the gas line for initial start-up of the furnace after
installation. This should be done by a qualified heating contractor. If excessive gas escapes when purging the
gas supply at the union, allow the area to ventilate for at least 15 minutes before attempting to start the furnace.
LP gas is especially dangerous because the specific gravity of LP gas allows it to accumulate at floor level at a
dangerous concentration. For remainder of operating instructions, reference Users Information Manual.
: Heat exchanger oil will burn off on initial firing creating an unpleasant odor. To prevent this
odor from occurring more than once, it is suggested that:
1. A window(s) be opened.
2. The thermostat set at highest setting.
3. The furnace remain running at conditions 1&2 for 30 minutes or until odor has dissipated.