6
SECTION I: INSTALLATION AND SETUP
These instructions were prepared for the guidance of those installing this particular gas conversion burner. While they apply in
principle to all installations, they should not be interpreted as meaning the only safe and economical way to install a conve rsion burner.
It may be necessary to deviate from these instructions in some instances in order to comply with local gas company rules or c odes in
effect in the area in which the installation is made. It is recommended that the installer confer with the local gas company and with the
proper municipal officials regarding any specific code or regulation governing the installation of gas conversion burners .
The installation must conform with local codes or, in the absence of local codes, with the American National Standard ANSI Z21.8
Installation of Domestic Gas Conversion Burners and ANSI Z223.1 the National Fuel Gas Code, latest version.
Safe and economical operation of the burner throughout its service life is dependent to a large extent upon its proper
installation in the heating appliance. Therefore, we may impress upon the installer that good clean workmanlike installations mean
satisfied customers.
VISUAL INSPECTION OF THE HEATING SYSTEM
A conversion burner shall not be installed in an appliance located in a room or basement where facilities for normal air circulation or
infiltration are so limited so as to interfere with ready obtainment of all air necessary for proper combustion and draft hood dilution,
unless at the time of burner installation special provisions are made for combustion and draft hood dilution air.
a.
In open basements of homes of normal construction (without basement storm windows or tight stair doors) infiltration of
combustion air is usually sufficient to replace that drawn up the flue, so special provisions are seldom necessary.
b.
When the heating appliance is installed in a tightly closed room without ventilating openings to outdoors or other rooms,
provisions shall be made for supplying air for combustion through special openings, one near the floor line and the other nea r
the ceiling, each to be sized on the basis of one square inch or more of free area for each 1,000 Btu/hr (0.2931 Kw) input but
not less than 100 square inches. (See Figure 1).
c.
When the house is of unusually tight construction, has a (kitchen) ventilating fan which may be used for exhausting air from
indoors, or has a vented fireplace, it is recommended that combustion air be supplied to the furnace room through intakes
extending to the outside of the building and terminating in down turned fittings, suitably arranged to prevent obstruction from
snow or rain, and including a protecting screen not smaller than 1/4-inch (6.35 mm) mesh.
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 mm2) per
5,000 Btu (.1.465 kW) per hour 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 (.1.465 kW) per hour of the total input rating of all appliances in the enclosure.
Ventilating Air Opening
1 Sq. in. (645.2 mm
2
)
for each 1,000 Btu
(.29 kW) per hour
Input, 100 Sq. in. minimum.
Air Inlet Opening 1 Sq.
in. (645.2 mm
2
) for each
1,000 Btu (.29 kW)
per hour input, 100 Sq.
in. minimum.
3. CHIMNEY OR GAS
VENT
2. ATTIC
VENTILATION
LOUVERS
VENTILATION
AIR OUTLET
1. VENTILATION
AIR INLET
CRAWL SPACE VENTILATION LOUVERS
FIGURE 2
Application below located in confined spaces. Ventilation
air from inside building – combustion and draft hood
dilution air from outside with ventilated attic or ventilated
crawl space.
Illustration above shows air opening
necessary to supply air for combustion
when heating appliance is installed in an
enclosed room.
FIGURE 1
Summary of Contents for P250 series
Page 35: ...35 FIGURE 23 WIRING DIAGRAMS FOR GAS BURNER WITH DIRECT IGNITION FENWAL...
Page 36: ...36 FIGURE 24 WIRING DIAGRAMS FOR GAS BURNER WITH ELECTRONIC PILOT HONEYWELL...
Page 37: ...37 FIGURE 25 WIRING DIAGRAMS FOR GAS BURNER WITH ELECTRONIC PILOT NO T STAT...
Page 38: ...38 FIGURE 26 WIRING DIAGRAMS FOR GAS BURNER WITH ELECTRONIC PILOT FENWAL...
Page 46: ...46 NOTES...
