80MGF SERIES FURNACE
are factory equipped for use with natural gas. A kit is
for conversion to LPG operation. All 80MGF units
prior to September 98 use electronic (direct spark) ignition.
model units are equipped with the LennoxSureLight
80MGFX unit meets the
Standards and California
Efficiency requirements. All units use a redundant
valve to assure safety shut−off as required by
heat exchanger, burners and manifold assembly can
be removed for inspection and service by simply disconnecting
unplugging wiring harness and spark wires and
removing four screws holding the heat exchanger in
Then the heat exchanger slides out of the cabinet.
may be installed in upflow, downflow or horizontal position.
The heat exchanger is designed for upright or
use only. When the unit is installed in the downflow
the heat exchanger is field removed and reinstalled
it is upright when the cabinet is inverted. No
conversion is required when the unit is installed in the
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