Securing The Damper Assembly To Wall And Floor Openings; Actuator Connections; Connection And Operation Of Temperature Control Devices - Greenheck FSDR Series Installation, Operation And Maintenance Manual

4. SECURING tHE DAMPER/SLEEVE ASSEMBLy tO
WALL AND FLOOR OPENINGS
Damper assemblies must be installed in wall/floor
openings using a single retaining plate on either side of the
wall/floor or by using a retaining plate on both sides of the
wall/floor. The use of a second retaining plate is allowed,
but is not necessary. A single retaining plate is provided
with the dampers. A second retaining plate can be ordered
as an option. The outside dimension of the supplied
retainer plate is nominal dia. + 41/2 inches (114mm).
• The retaining plate(s) will open up for easy installation
when the clamping screw is loosened. If necessary,
remove the clamping screw and nut (see Fig. 2).
• Position the retaining plate between the blade axle and
the actuator shaft as shown in Figure 1. Do not place
the retaining plate in the groove. IMPORTANT: The
clamping mechanism should face away from the wall/
floor.
• Place the damper and attached retainer plate into the
wall/floor opening.
• If a second retaining plate is being used, secure it on
the opposite side of the wall/floor.
• Verify position, blade orientation, and actuator
clearance then tighten the retainer plate clamping
screws.
• The retainer plate(s) must overlap the wall/floor
opening a minimum of 1 inch (25mm).
• Secure the retainer plate(s) to the wall at the four
corners of each plate when two retainer plates are
used and also within 3/4 in. (19mm) of the center
of each side when one retainer plate is used. The
following fasteners shall be used:
- #8 or #10 screws of a length such that the screw
engages the steel stud/track by 1/2 in. (13mm) (steel
framing)
- #8 or #10 screws of a length such that screw
engages the wood stud by 13/4 in. (44mm) (wood
framing)
- Steel anchors or self tapping concrete screws
penetrating masonry or block 11/4 in. (32mm).

5. ACtUAtOR CONNECtIONS

Electrical and/or pneumatic connections to damper
actuators should be made in accordance with wiring and
piping diagrams developed in compliance with applicable
codes, ordinances and regulations (see Electrical
Guidelines).
6. CONNECtION AND OPERAtION OF
tEMPERAtURE RESPONSE DEVICES (Fusible
Link, RRL OPtION, OCI OPtION, tOR OPtION,
and PRV OPtION)
RRL - Dampers will be supplied with a fusible link
temperature response device, as a standard. An optional
thermostat type temperature response device may have
been installed. The device is a RRL (resettable link device),
which only incorporates one thermostat and therefore the
damper remains closed as soon as its sensor temperature
is reached. The RRL does not contain blade indication
switches. Refer to Fig. 4.
4
Fig. 2
Fig. 3
Fig. 4 RRL Wiring