Reznor EEDU, Установка, эксплуатация и обслуживание

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I-EEDU (02-21) 150492-A
Figure 1. Confined Space Combustion Air Openings (Refer to Table 2 )
Table 2. Determining Confined Space Combustion Air Requirements
Letter
*
Air Source Required Opening Size
Calculate Combustion Air
Requirements
A Air inside building
1 square inch free area per 1000 BTUh
Add total BTUh of all appliances in
confined space and divide by figures
at left for square inch free area size of
each (top and bottom) opening
Never <100 square inches free area for each opening
B Outside air through duct 1 square inch free area per 2000 BTUh
C Direct outside air 1 square inch free area per 4000 BTUh
*
See
Figure 1
.
CONFINED
SPACE
A
A B
B C
C
Hazards of Chlorine
⚠ CAUTION ⚠
The presence of chlorine vapors in the combustion air of gas-fired heating equipment presents
a potential corrosion hazard. Chlorine, usually in the form of freon or degreaser vapors, when
exposed to flame will precipitate from the compound and form a solution with any condensation
present in the heat exchanger or associated parts. The result is hydrochloric acid which readily
attacks all metals including 300 grade stainless steel.
•
Care should be taken to separate chlorine vapors from the combustion process . This may be done by wise location
of the furnace with regard to exhausters or prevailing wind direction .
•
Remember, chlorine is heavier than air . This fact should be kept in mind when determining installation locations
of heating equipment and building exhaust systems .
Dimensions
Unit dimensions are shown in
Figure 2
and listed in
Table 3
. All dimensions are in inches (mm) .
GENERAL INFORMATION—CONTINUED
Combustion Air Requirements—Continued