Unitary Products Group 3 HOW YOUR GAS FURNACE WORKS Externally Bottom Mounted Air Filters This furnace has the filter(s) UPG warrants this product to be free from defects in factory workmanship and material under normal use and service and will,
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3 ® Technical Guide: Heat Exchanger Material Selection One important consideration when selecting an indirect gas-fired furnace for a make-up air or
A gas-fired furnace for installation in a residential All air filters must be listed as Class 2 furnace air filters. replaced, it must be replaced with wiring material having a temperature rating of at least 90°C. 2.
Warm Air Gas Furnace Upflow / Horizontal Left and Right Air Discharge Improper installation, Filters .. 12 Duct System clearances to combustible material as listed on the unit nameplate and in the tables in Figures 7 and 11.
A gas-fired furnace for installation in a residential garage must be Gas Furnace FIGURE 8: Combustible Floor Base Accessory FIGURE 9: Horizontal Application attempt to install filters inside the furnace.
Replacement Gas Furnace Check List or Inspection/Adjustments Propane Natural gas Size calculated for the new furnace Btus Input Measured Input (Clock meter)
Gas Fired Warm Air Furnace Specification Sheet Part No.20371704 Printed in U.S.A. August 2002 DIMENSIONS (Inches) All dimensions are in inches. Supply
Temperature gas from the furnace primary system mixes More significantly, the GORE-TEX membrane filters are to avoid high temperature damage to the polyester material the baghouse had to operate periodically at significantly
COMFORT PACK GAS FURNACE INSTRUCTIONS . piping system at test pressures equal to or less than 1/2 PSI (3.5KPA). carpeting, tile, or other combustible material other than wood flooring. 7. The Comfort Pack may be installed with zero clearances
This furnace installation. 7. A furnace shall be installed so electrical components RETURN AIR FILTERS FOR UPFLOW FURNACE IN HORIZONTAL CONFIGURATION VENT FITTING MATERIAL – PLASTIC Gas and liquid tight single wall vent fittings,
33-3/8" 80% Gas Furnace Units • Refer to Service Manual RS6610004 for installation, combustible material other than wood flooring. Installing this furnace without filters will void the unit warranty
Gas Furnace NOTE TO INSTALLER: This manual must be left Keep your furnace free and clear of insulating material. Some materials may be Use care when cutting support rods in filters to protect against flying pieces and sharp rod ends.
Page 4 of 48 Issue 1031 506501-01 A95UH, A93UH, 95G1UH &92G1UH Gas Furnace The A95UH/A93UH/95G1UH & 92G1UH Category IV gas furnace is shipped ready for installation in the upflow or
Page 4 of 37 Issue 1035 506528-01 A80DF & 80G1DF Gas Furnace The A80DF & 80G1DF gas furnace is shipped ready for installation in the downflow position.
LENNOX MERIT SERIES™ GAS FURNACE USER’S INFORMATION MANUAL material, gasoline, and other flammable vapours and when necessary to ensure proper furnace operation. Replacement filters must be rated for high velocity airflow.