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Condensing Gas Furnaces 90+ Four Position Furnaces N9MP1, N9MP2, *9MPD, *9MPT & *9MPV Non-Condensing Gas Furnaces 80+ Four Position Furnaces N8MPN/L, *8MPN/L, *8MPT & *8MPV *8DNL (Downflow only) FIRE OR EXPLOSION HAZARD. Failure follow safety warnings exactly could result in death, serious injury and/or...
User's Information Manual Never block or obstruct the openings on the furnace, or any ducts that provide air to the furnace. Air must be pro- vided for proper and safe operation of the furnace for com- DEATH, PERSONAL INJURY AND/OR PROPERTY bustion and ventilation of flue gases.
User's Information Manual d. (Upflow or downflow installations with duct connection New materials and methods are being used in construction and re- bottom only.) The physical support of the furnace is sound modeling which result in lower energy costs for heating and cooling.
User's Information Manual Match goes out or flame wavers away from draft hood, This Install a fresh air intake duct. Cold, dryair brought in from out- indicates spillage and that appliance is not getting enough side to the furnace area lowers the indoor humidity level.
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User's Information Manual Component Locations Four Position 90+ Furnaces Furnace Vent Pipe (Vent Pipe Connections Air Intake Pipe through Side Panel Some Models for Direct-Vent Furnaces) Manual Equipment Shutoff Vent Pipe Grommet Primary Heat Exchanger Ignitor & Flame Sensor (not shown) Vent Drain Gas Control...
User's Information Manual Set the room thermostat slightly above room temperature. This will Set the thermostat to the desired temperature and the Sys- tem Select Switch to HEAT. automatically signal the furnace to start. The inducer motor will start, and the hot surface igniter will have an orange glow.
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User's Information Manual L P Model Furnaces Insert a funnel into the hose and pour four (4) ounces of sani- tary type (RV) antifreeze into the condensate trap. Recon- nect the 1/2" I.D. rubber hose to the stub on the vent drain fitting.
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User's Information Manual Replacement filters should be of the same type and size as the origi- Filter Rack Outside Furnace nal filters, to ensure adequate air flow and filtering. A disposable velocity filter can be replaced with a washable high velocity type.
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User's Information Manual External Filter Rack Turn OFF power to furnace. Remove compartment door. A plastic end cap is inserted in the filter rack after the filter Reach up above right side of blower, and lift dirty filters out of installed.
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