Greenheck Ceiling Radiation Dampers (826252) - Manual (Page 4)

Detail A
Detail B
Thermal
Blanket
Lay-In Diffuser
Ceiling
Radiation
Damper
Tee Bar
Steel Duct
Drop
Steel Duct
All hanger wires
must be vertical
(not splayed)!
3 ¾ in.
maximum
Figure 2
Lay-In Diffuser With Steel Duct Drop
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into exposed Tee bar grid system.
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neck, and steel duct drop (See Page 1, Paragraph
4) may be satisfied in two ways:
1. Ceiling radiation damper and diffuser neck
may be connected directly to the duct
drop (see Detail A, Figure 2).
Models CRD-1, CRD-1LP, CRD-3, & CRD-60
Dampers Supported By A Ceiling Grid System (cont.)
2. 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).
Models CRD-1, CRD-1LP, CRD-2, and CRD-60 may be
installed as shown in Figure 2 (Model CRD-1 &
CRD-1LP Illustrated).
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the ceiling opening and installs directly into the
exposed Tee bar grid system opening.
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and may lay on top of perforated metal (or similar)
grille core material.
Unducted Ceiling Plenum Return Air Applications
Models CRD-1, CRD-1LP, CRD-3, and CRD-60 may
be installed as shown in Figure 3 (Model CRD-3
Illustrated).
3