11
GAS HEATING INFORMATION
INSTALLATION continued
GAS FIRED HEATING UNITS - RAIN HOOD INSTALLATION
AFTER UNIT INSTALLATION & BEFORE UNIT STARTUP / OPERATION:
Gas fired heating units will have exterior rain hoods shipped with them. They are fastened in place with sheet metal
screws. See the photos of the hoods on the exterior of the unit. Notice that higher heating capacity units will have
two banks of the gas-fired heat exchangers shown. ALL of these hoods must be installed immediately after the unit
is set in place.
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!
WARNING
All exterior rain hoods must be in place before
the gas-fired heater is initially started.
Improper and dangerous operating conditions
will otherwise result.
Flue discharge vents MUST BE located at least 120"
away from any opening through which combustion prod-
ucts could enter the building or discharge into any fresh
air intake of other equipment. The flow of combustion
and ventilating air can not be obstructed from reaching
the furnace.
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!
CAUTION
Before leaving installation, a complete
operating cycle should be observed to verify
that all components are functioning properly.
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