Application Data
Damper Sleeve Dimensional Data
The drawings below and corresponding table show the position of the
The standard location of a damper mounted in a factory sleeve ("A" dimension) is shown below. The damper can be positioned at other locations within a range of 6 in. (152mm) to 12 in. (305mm) for the "A" dimension.
11/2 in. max.
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| 33/4 in. |
| 6 in. | Varies |
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| 53/8 in. |
LH | RH |
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| Right hand drive is shown | A | 5 in. |
| Left hand drive available upon request |
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Sleeve Length
in. (mm) | "A" Dimension | ||
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Standard | Maximum | ||
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All Dampers* | 7 3/16 in. (183) | 12 (305) | |
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When Height is | 12 (305) | 12 (305) | |
11 in. (279) or less |
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with OCI |
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*With the exception of dampers 10 in. high (254mm) or less.
NOTE: Entire damper frame is not required to be installed within the wall.
T* | Actuators and Accessories |
S | Space Envelopes |
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| Externally mounted actuators always require space out- |
| side of the damper sleeve. The “S” dimension illustrates |
| 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 clearance require- |
| ments for some dampers less than 18 in. (457mm) 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 evaluated. |
B*
Actuator |
| B* |
| T* | S |
Type/Model |
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| With OCI |
| With OCI |
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| 120 Volt AC |
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ML4XXX Series Honeywell | 5 | 1/4 in. (133mm) |
| 3/4 in. (19mm) | 6 in. (152mm) |
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MS4XXX Series Honeywell | 6 in. (152mm) |
| 3/8 in. (10mm) | 6 in. (152mm) | |
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MS4120 Series Honeywell | 6 in. (152mm) |
| 3/8 in. (10mm) | 6 in. (152mm) | |
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| 24 Volt AC |
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ML8XXX Series Honeywell | 5 | 1/4 in. (133mm) |
| 3/4 in. (19mm) | 6 in. (152mm) |
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MS8XXX Series Honeywell | 6 in. (152mm) |
| 3/8 in. (10mm) | 6 in. (152mm) | |
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MS8120 Series Honeywell | 6 in. (152mm) |
| 3/8 in. (10mm) | 6 in. (152mm) | |
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| Pneumatic (psi) |
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1 in. (25mm) |
| 6 1/4 in. (159mm) | 6 1/2 in. (165mm) | ||
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2 | 3/8 in. (60mm) |
| 12 1/8 in. (308mm) | 9 1/4 in. (235mm) | |
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3 | 3/4 in. (95mm) |
| 16 1/2 in. (419mm) | 10 in. (254mm) | |
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* For dampers 18 in. (457mm) or more in height these dimensions are 0 in. .