HIGH WIND CONDITIONS
(OUTDOOR UNITS ONLY)
In areas where high winds are frequent, it may be necessary to locate the heater a minimum of 3' from high vertical walls, or install a wind break so the heater is not in direct wind current.
In areas of daily high winds, it may be necessary to replace the outdoor stackless top with a stack adapter in combination with a wind resistant/weather proof outdoor stack. See illustration below.
The outdoor stack serves the same function as the low profile stackless top and should be installed in accordance with the same clearance requirements.
OUTDOORSTACK
STACK ADAPTER
INDOOR HEATERS
The design is certified by A.G.A. for indoor installa- tion when equipped with the approved draft hood. Locate heater as close as practical to a chimney or gas vent. Heater must always be vented to the outside. See Vent Piping Section for venting details. Minimum allow- able space is shown on the nameplate.
INDOORTOP
Fig # 9253
Fig # 9254
COMBUSTION AIR (INDOOR UNITS ONLY) Air For combustion And Ventilation
(Indoor Units Only)
The heater must have both combustion and venti- lation air. Minimum requirements for net free air supply openings, one 12 inches from ceiling for ventilation and one 12 inches from the floor for combustion air as outlined in the latest edition of the National Fuel Gas Code, Z223.1 and any local codes that may have jurisdiction.
CAUTION: Combustion air must not be contaminated by corrosive chemical fumes which can damage the heater.
a.All Air From Inside The Building:
Each opening shall have a minimum of 105 net free square inches.
b.All Air From Outdoors:
When air is supplied directly from outside of building, each opening shall have a minimum of 27 net free square inches.
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