- Immediately call your gas s upplier from a neighbor’s phone. F ollow the gas s upplier’s ins tructions . - If you cannot reach your gas s upplier, call the fire department. Page 1 GHR26 SERIES GAS FURNACE Litho U.S .A.
GHR26 Parts Identification (Downflow Application Shown) WARNING Product contains fiberglass wool. Disturbing the insulation in this product during installation, maintenance, or repair will expose you to fiberglass wool dust. Breathing this may cause lung cancer. (Fiberglass wool is known to the State of California to cause cancer.)
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Force or attempted repair may result in a fire or ex- plosion. To place GHR26 furnace into operation: GHR26 units are equipped with a SureLight ignition sys- tem. Do not attempt to manually light burners on these fur- naces. Each time thermostat calls for heat, the burners will be automatically lit.
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Filters used inside the GHR26 series unit are available from Lennox and must be ordered separately. These foam filters may be cleaned for reuse. If replacement is necessary, order Lennox part no.
Blower access door - Must be properly in place and provide a seal between the return air and the room where the furnace is installed. Return air duct - Must be properly attached and provide an airtight seal to unit.
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