Application Data
Damper Sideplate and Sleeve Dimensional Data
The drawings below illustrate the factory standard sideplate and sleeve mountings for the
If space constraints are a problem the "A" dimension can be varied between 5 3⁄8 in. (136mm) and 12 in. (305mm).
Sideplate
6 in.
5 in.
A 12 in.**
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| "A" Dimension |
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in. (mm) | Sleeve |
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| Standard |
| Maximum |
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All Dampers* | 7 3/16 (183) |
| 12 (305) |
| 6 3/16 (157) |
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When height is | 11 3/16 |
| 12 |
| 10 3/16 |
11 in. (279) or | (284) |
| (305) |
| (259) |
less with OCI |
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*With the exception of dampers 11 in. (279mm) high or less (12 in. (305mm)high or less if width is greater than 64 in. (1625mm)) with OCI option.
**On dampers 11 in. (279mm) high or less (12 in. (305mm)high or less if width is greater than 64 in. (1625mm)) with OCI option, sideplate is 16 in. (406mm)
Sleeve
11/2" max.
3 3/4"
Varies | 53/8" |
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A 
5" 
Sleeve Length
T*
S 
B*
Space Envelopes Required for Actuators and Accessories
Externally mounted actuators always require space outside of the damper sideplate or sleeve. The “S” dimen- sion 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 sideplate or sleeve. “B” and “T” dimensions are worst case clear- ance requirements 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 avail- ability above or below the damper sleeve is limited, each damper size should be individually evaluated.
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. .