Wayne HSG200, Руководство пользователя

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NOTE ON FIGURE 2 : Ducts used for make-up air may be connected to the cold air return of the heating system only if
they connect directly to outdoor air. Attic Ventilation Louvers are required at each end of attic with alternate air inlet
No. 1.
1, 2, and 3 mark alternate locations for air from outdoors. Free area shall be not less than 1 sq.in. (645.2 mm
2
) per
5,000 Btu/hr (1.465 kW) of the total input rating of all appliances in the enclosure.
Crawl-space Ventilation Louvers for unheated crawl space are required with alternate air inlet No. 3.
Each Ventilation Air Opening from inside the building shall have a free area of not less than 1 sq. in. (645.2 mm
2
) per
5,000 Btu per hour (1.465 kW) of the total input rating of all appliances in the enclosure.
The heating system (both the heat exchanger and distribution system) shall be of a size to properly heat the
building. Through inquiry it shall be determined that all rooms have been heated adequately without wide
variations in temperature, without objectionable drafts, and without excessive fuel costs in the past. If the heating
system is deficient with respect to any of the above determinations, provisions shall be made to correct the
deficiency, replace obsolete parts, or (by installing storm windows, insulation, etc.) to reduce the heat loss to a
point where the existing system will provide the proper amount of heat.
a. Gravity Warm Air System
The supply and return ducts and registers should be sized and arranged so that the house can be heated
without excessive furnace temperatures. Reference may be made to the American Society of Heating,
Refrigerating and Air-Conditioning Engineers Guide and Data Book series and Handbook of Fundamentals.*
b. Forced Warm Air Systems
Inspection should also show whether the electrical characteristics of the fan and limit switch are satisfactory
and whether the air filters and fan are in condition for continued proper service with the gas burner.
Reference may be made to the American Society of Heating, Refrigerating and Air-Conditioning Engineers
Guide and Data Book series and Handbook of Fundamentals.*
c. Hot Water Systems
The boiler thermometer and altitude gauge should be in good order. On a closed system, the feed and
pressure relief valves shall be in proper operating condition. If there is an expansion tank on a closed system,
inspection should show it to be substantially empty of water. When there is an existing water temperature
limiting switch, its operating and electrical characteristics shall be checked to determine its suitability to the
gas control circuit. For common piping systems reference can be made to the American Society of Heating,
Refrigerating and Air-Conditioning Engineers Guide and Data Book series* and to the Hydronic Institute
I=B=R Guides.**
d. Steam or Vapor System
The system shall be pressure tight, with pressure gauge and pop safety valve in good condition and with an
existing water glass which permits clear observation of boiler water level. When there is a pressure limit
switch or low-water cut-off, inspection shall determine whether either device can be utilized in the gas burner
control circuit, reference should be made to the American Society of Heating, Refrigerating and Air-
Conditioning Engineers and Institute of Boiler and Radiator Manufacturers guides. Traps and air vents shall
be of adequate capacity, in good condition, and correctly placed in the system.
*Copies may be obtained from the http://www.ashrae.org
**Copies may be obtained from the Hydronic Institute, 35 Russo Place, Berkeley, NJ 07922.
INSPECTION OF FLUE PIPE AND CHIMNEY

The flue pipe should be carefully inspected and replaced if necessary in connection with installation of a draft
hood. A barometric damper may be used per Flue Pipe, Draft Hood, and Barometric Damper section of
manual. All installations must operate with a negative draft overfire. Refer to your local gas company or
codes for assistance or to the furnace and/or boiler manufacturer for recommendations.

The flue pipe entrance into the chimney should be at least two feet (0.610m) above the clean-out opening in
the chimney.

The chimney should extend high enough above the dwelling or other neighboring obstructions so that wind
from any direction will not strike the chimney from any angle above horizontal. Unless the obstruction is of
greater magnitude, it is the usual experience that a chimney extending two feet above flat roofs or above fire
wall parapets, and peaked roofs within 30 feet (9.144m) will be reasonably free of downdraft.