Dampers supported by a ceiling grid system, Lay-in diffuser applications – Greenheck Ceiling Radiation Dampers (826252) User Manual

Page 24

Dampers Supported By A Ceiling Grid System

Lay-In Diffuser Applications

Lay-In Diffuser

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grid system.

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2, Paragraph 4).

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Lay-In Diffuser With Steel Duct Drop

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into exposed Tee bar grid system.

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and steel duct drop (See Page 2, Paragraph 4) may
be satisfied as follows:

Figure 2

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it shall be fastened to the diffuser neck with a steel
clamp or #16 SWG minimum wire.

NOTE: (1) The flexible air duct shall not rest on the back
surface of the ceiling grid or panels (provide a minimum
of 4 in. [102mm] clearance). (2) The flexible air duct shall
not interfere with the closing of the ceiling damper.
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Figure 1.

Ceiling radiation damper may be connected
directly to the diffuser neck and then the duct
drop connected to the damper (see Detail B,
Figure 2).

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Figure 2.

Figure 1

Ceiling
Radiation
Damper

Thermal
Blanket

9 3/4 in.

(248mm)

Maximum

Tee Bar

Lay-in Diffuser

All hanger wires

must be vertical (not

splayed)!