Application Data - Greenheck FSD-312 Specifications

Application data

damper sleeve dimensional data
The drawings below and corresponding table show the position of the FSD-312 damper when mounted in a factory sleeve.
The standard mounting locations provide enough space for the mounting of actuators, controls and allow space for installa-
tion of retaining angles and duct connections.
LH
Right hand drive is shown
Left hand drive available upon request
LH
Right hand drive is shown
Left hand drive available upon request
Actuator Type/Model
ML-4XXX Series Honeywell
MS-4XXX Series Honeywell
MS-4120 Series Honeywell
ML-8XXX Series Honeywell
MS-8XXX Series Honeywell
MS-8120 Series Honeywell
331-4551 Powers
331-2976 Powers
MK2-7121 Invensys
* For dampers 18 in. (457mm) or more in height these dimensions are 0 in. .
3 / "
3
4
6"
Varies
5 / "
3
8
3 / "
3
4
RH
A
Sleeve Length
6"
Varies
5 3 / "
8
RH
A
Sleeve Length
T*
S
T*
S
B*
B*
With
RRL, RRL/OCI, or TOR
B*
5¼ in. (133mm)
6 in. (152mm)
6 in. (152mm)
5¼ in. (133mm)
6 in. (152mm)
6 in. (152mm)
Pneumatic (25 psi min.)
1 in. (25mm)
2 3/8 in. (60mm)
3 3/4 in. (95mm)
1 1 /2" max.
The standard location of a damper mounted in a
1 1 /2" max.
factory sleeve ("A" dimension) is shown below. The
damper can be positioned at other locations within
a range of 6 in. (152 mm) to 12 in. (305mm) for the "A"
dimension.
All Dampers*
5"
When H is 11 in. (279mm) or
less with OCI, RRL, or TOR
*With the exception of dampers 10 in. high (254mm) or less.
NOTE: Entire damper frame is not required to be installed within the
wall. The damper blades, when closed should be contained within
5"
the wall.
Actuators and Accessories
space envelopes
Externally mounted actuators always require space
outside of the damper sleeve. The "S" dimension il-
lustrates the clearance required for various available
actuators.
On dampers less than 18 in. (457mm) high, actuators
may also require clearances above and/or below the
sleeve. "B" and "T" dimensions are worst case clear-
ance requirements for some dampers less than 18 in.
(457 mm) high. All damper sizes under 18 in. (457mm)
high do not require these worst case clearances. If
space availability above or below the damper sleeve is
limited, each damper size should be individually evalu-
ated.
T*
With
RRL, RRL/OCI, or TOR
120 Volt AC
¾ in.(19mm)
3/8 in. (10mm)
3/8 in. (10mm)
24 Volt AC
¾ in.(19mm)
6 in. (152mm)
6 in. (152mm)
6¼ in. (159mm)
12 1/8 in. (308mm)
16½ in. (419mm)
"A" Dimension
in. (mm)
Standard
7 3/16 (183)
12 (305)
S
6 in. (152mm)
6 in. (152mm)
6 in. (152mm)
6 in. (152mm)
6 in. (152mm)
6 in. (152mm)
6½ in. (165mm)
9¼ in. (235mm)
10 in. (254mm)
Maximum
12 (305)
12 (305)