Unvented Operation - Brant Radiant Heaters QTD Series User Instruction

QTD Series

Unvented Operation

Not for residential use. The use of unvented radiant tube heaters in residential indoor
spaces may result in property damage, serious injury or death. Use unvented operation in
commercial and industrial installations with proper ventilation rates only.
When using an unvented configuration
• A factory supplied vent cap/diffuser (P/N: WVE-GALV) must be used.
• Where unvented heaters are used, natural or mechanical means must be provided to supply
adequate ventilation - a minimum of 4 cfm/1000 BTU/h (0.38 m
NOTE: Gravity or mechanical means may be used to accomplish the air displacement. Local
codes may require that the mechanical exhaust system be interlocked with the electrical supply
line to the heaters, enabling both to function simultaneously.
• Exhaust openings for removing the flue products must be located above the level of the
heater(s).
Figure 3.10 • Minimum End Clearances
6 in.
Min.
to Back
3.0
WARNING
!
(commercial & industrial use only)
19
Installation • Venting • Unvented Operation
, consider the following:
3 /kW) input of installed heaters.
12 in.
Min.
to End