21
II. 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
2. PRE-INSTALLATION CHECK-POINTS — Before attempting any installation, care-
fully 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 - away from bedroom windows
B. LOCATION CONSIDERATIONS
The metal parts of this unit may be subject to rust or deterioration in adverse environ-
mental 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 vari-
ous chemical contaminants from industries such as paper mills and petroleum refineries
are especially corrosive.
If the unit is to be installed in an area where contaminants are likely to be a prob-
lem, 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 waterfront.
3. Shielding by a fence or shrubs may give some protection.
1. Frequent washing of the cabinet, fan blade and coil with fresh water will remove
most of the salt or other contaminants that build up on the unit.
2. Regular cleaning and waxing of the cabinet with an automobile polish will provide
some protection.
3. A liquid cleaner may be used several times a year to remove matter that will not
wash off with water.
Several different types of protective coatings are offered in some areas. These coatings
may provide some benefit, but the effectiveness of such coating materials cannot be ver-
ified by the equipment manufacturer.
The best protection is frequent cleaning, maintenance and minimal exposure to
contaminants.
!
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.
Содержание RKKL Series
Страница 9: ...9 Illustration ST A0801 17 I FIGURE 6 ROOFCURB INSTALLATION FIGURE 5 ST A1154 02 00...
Страница 41: ...41 TABLE 9 AIR FLOW PERFORMANCE 12 5 TON 43 9 kW RKKL B120 MODELS...
Страница 45: ...45 FIGURE 21...
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Страница 51: ...51 FIGURE 27 RKKL SYSTEM CHARGE CHART...
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Страница 56: ...56 CM 1110...