Lennox F8AUH manual

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Table of contents for the manual

  • Page 1

    1  1999 45,000 to 120,000 Btuh (13.2 to 35.2 kW) Heating Capacity 1 through 5 T ons (3.5 to 17.6 kW) Add-On Cooling F8AUH Gas Furnaces – Up-Flow / Horizontal User ’ s Information Manual RET AIN THESE INSTRUCTIONS FOR FUTURE REFERENCE 503,995M 06/99 Supersedes 05/99 T able of Contents Important Directions 2 . . . . . . . . . . . . . . . . . .[...]

  • Page 2

    2 P ARTS IDENTIFICA TION 2 3 1 - COMBUSTION AIR BLOWER 2 - PRESSURE SWITCH 3 - BURNERS 4 - HEA T EXCHANGER 5 - GAS V AL VE 6 - CONTROL BOARD 7 - BLOWER 7 1 5 6 4 W ARNING Product c ontains fiberglass w ool.Disturbing t he insulation in this product during installation, maintenance, or repair will expose you to fiber Ć glass wool. Breathing this ma[...]

  • Page 3

    3 2 - DO NOT obstruct air flow to u nit. Unit must receive an unobstructed flow of combustion and ventilating air . 3 - DO N OT s tore c hlorine o r f luorine p roducts n ear u nit o r introduce these products into the combustion air . These products can cause furnace corrosion. 4- DO NOT draw return air from a room where this furnace, or any other[...]

  • Page 4

    4 6 - White Rodgers 36E Gas V alv e - Switch gas valve lever to OFF . do n ot f or c e. S ee f ig ur e 2. Honeywell V R8205 Gas V alve - T urn knob on gas valve clockwise t o OFF . D o n o t f o rc e. S ee f ig ur e 3. WHITE RODGERS 36E SERIES GAS V AL VE GAS V AL VE SHOWN IN OFF POSITION FIGURE 2 ON OFF HONEYWELL VR8205 SERIES GAS V A L V E GAS V [...]

  • Page 5

    5 UPFLOW F URNACE SIDE RETURN AIR FIG URE 5 Blower Check and clean blower wheel for any debris. Blower motor is prelubricated for extended bearing life. No further lubrication is needed. W ARNING Blower door must be securely in place when blower and burners are operating. Gas fumes, which could contain carbon monoxide, can be drawn into living spac[...]

  • Page 6

    6 S If you experience headache, nausea, fatigue, or dizziĆ ness, the cause could be exposure to carbon monoxĆ id e gas. This is often misdiagnosed as the flu because symptoms are similar . If you suffer from flu-like sympĆ toms that are exaggerated at home, but seem to subĆ side while you are away from the house, exposure to carbon monoxide cou[...]