Combustion Air Supply - Room Air - Brant Radiant Heaters DET3 Series Manual

DET3 Series
Non-contaminated outside air for combustion must be ducted to the heater if any of the
following apply:
• Chemicals such as chlorinated or fluorinated hydrocarbons (typical sources are refrigerants,
solvents, adhesives, degreasers, paints, paint removers, lubricants, pesticides, etc.).
• High humidity.
• Contaminants such as sawdust, welding smoke, etc.
• Negative building pressure.
• Unusually tight construction where there is an air infiltration rate of less the 0.40 air changes per
hour.
Guidelines:
Combustion air intake may be located on either the sidewall or roof (see figures 3.26-3.28).
Figure 3.26 • Vertical Outside Air
Supply for Single Heater Intake - Side
View
Figure 3.27 • Horizontal Outside Air
Supply for Single Heater Intake
- Side View
Figure 3.28 • Vertical Outside Air
Supply for Common Intake - Side
View
NOTE: Common intake
heaters must share the
same thermostat.
Burner
Control Box
3.0 Installation •
4" pipe
Air Intake Cap
18 in.
minimum
Air Inlet Connection
4" intake pipe
Separated Combustion Systems
Roof intake Cap
18 in.
minimum
Air Inlet Connection
Air Inlet Connection
Wall
4" Pipe
Roof Intake Cap
6" pipe
Air Inlet Connection
4" intake pipe
37
•
Combustion Air Requirements
Roof
(Flexible boot and band
clamps are recommended)
Burner
Control Box
(Flexible boot and band
clamps are recommended)
Burner
Control Box
Roof
(Flexible boot and band
clamps are recommended)
Burner
Control Box