If the VD-1240 or VD-1241 damper fails to operate in its specifications, replace the unit. For a replacement valve, contact the nearest Johnson Controls® representative.
| Letter | Description |
|---|---|
|
C |
Clear anodized finish (VD-1240) |
|
E |
Exact whole inch size, no undercut |
|
F |
1.5 in. L flange air entering side (cannot be used with option G) |
|
G |
1.5 in. L flange air leaving side (cannot be used with option F) |
|
H |
Double flange (cannot be used with option F or G) |
|
I |
Indicator switch |
|
J |
Field-installed jackshaft on the single panel (multiple section units broken down and shipped in sections) |
|
M |
Factory-installed jackshaft on single panel units |
|
Q |
Internal mount actuator (actuator mounted in air stream, minimum electric actuators 14 x 21 in. minimum pneumatic actuator 18 x 24 in.) |