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VII.INSTALLATION
A. GENERAL
1. INSTALLATION — Install this unit in accordance with The American National
Standard Z223.1-latest edition booklet entitled “National Fuel Gas Code,” and the
requirements or codes of the local utility or other authority having jurisdiction.
Additional helpful publications available from the “National Fire Protection
Association” are: NFPA-90A - Installation of Air Conditioning and Ventilating
Systems 1985 or latest edition. NFPA-90B - Warm Air Heating and Air Conditioning
Systems 1984.
These publications are available from:
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
NOTE: Remove wood shipping base before installing unit.
1. PRE-INSTALLATION CHECK-POINTS — Before attempting any installation,
carefully consider the following points:
Structural strength of supporting members
(Rooftop Installation)
Clearances and provision for servicing
Power supply and wiring
Gas supply and piping
Air duct connections and sizing
Drain facilities and connections
Location for minimum noise and vibration
2. LOCATION CONSIDERATIONS
The metal parts of this unit may be subject to rust or deterioration in adverse envi-
ronmental conditions. This oxidation could shorten the equipment’s useful life. Salt
spray, fog or mist in seacoast areas, sulphur or chlorine from lawn watering systems,
and various chemical contaminants from industries such as paper mills and petrole-
um refineries are especially corrosive.
If the unit is to be installed in an area where contaminants are likely to be a
problem, give special attention to the equipment location and exposure.
1. Avoid having lawn sprinkler heads spray directly on the unit cabinet.
2. In coastal areas locate the unit on the side of the building away from the water-
front.
3. Shielding by a fence or shrubs may give some protection.
4. Elevate the unit off its slab or base enough to allow air circulation and avoid hold-
ing water against the basepan.
!
WARNING
DISCONNECT ALL POWER TO UNIT BEFORE STARTING MAINTENANCE.
FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PER-
SONAL INJURY OR DEATH.
REGULAR MAINTENANCE WILL REDUCE THE BUILDUP OF CONTAMINANTS
AND HELP TO PROTECT THE UNIT’S FINISH.
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