Thermo Pride CHX3-75N Installation And Operation Manual page 4

All installations and services must be performed by qualified service personnel.
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.
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 Two Stage 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 CHX3/CDX3 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.
Combustion products must be carried
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