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Warning, Unvented operation – Detroit Radiant Products Company QTS Series User Manual

Page 19

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QTS

Series

19

3.0

Installation

Venting

Unvented Operation

When using an unvented configuration

(commercial & industrial use only)

, consider the following:

• 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

3

/kW) input of installed heaters.

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).

WARNING

!

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.

Unvented Operation

Figure 3.10

Minimum End Clearances

12 in.

Min.

to End

6 in.

Min.

to Back