Detroit Radiant Products DST-60N, Руководство по установке, Страница: 22 / 52

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DST Series
3.0 Installation • General Combustion Air Requirements
General Combustion Air Requirements
(All Models)
Combustion air may be supplied to the heater by indoor or outdoor means. Follow these guidelines and all
applicable codes for all models prior to installing the combustion air duct work. Local codes may vary. In
the absence of local codes, refer and comply with the National Fuel Code ANSI Z223.1 (NFPA 54) latest
edition.
This unit comes standard equipped for connection of supplied outdoor air for combustion. It is designed
for outside air to be brought into the appliance from combustion intake ducts, and is referred to as a
“Separated Combustion” on page appliance.
This heater must operate using combustion air if any of the following criteria apply:
• Chemicals such as chlorinated or fluorinated hydrocarbons (typical sources are refrigerants,
solvents, adhesives, degreasers, paints, paint removers, lubricants, pesticides, etc.) are present in
the atmosphere.
• High humidity.
• Contaminants such as sawdust, welding smoke, etc.
• Negative building pressure.
• Unusually tight construction where the air infiltration rate is less than 0.40 air changes per hour.
If your application does not meet any of these criteria, then room air may be used as supplying
combustion air to the heater.
Combustion air may be supplied to the heater by indoor or outdoor means.
If using combustion air from indoors, the required volume of the space must be a minimum of 50 ft
3
per
1000 BTU/h unless the building is of unusually tight construction. If the building is of unusually tight
construction with air infiltration rates of less than 0.40 air changes per hour, outside combustion air is
typically needed unless the sheer size of the building allows otherwise. Contact the factory for further
determination of air infiltration rates.
Sufficient combustion air must be supplied to the appliance at all times.
Lack of combustion air may result in property damage, serious injury, or death.
WARNING
!