WattMaster WM-WCC3-TGD-01B - Manual (Page 833)

Force Modes
Force Modes or Overrides
The VAV/Zone Controller damper can be forced to one of several po-
sitions. These force modes aid the user during troubleshooting or air
balancing, etc.

Force Damper Full Open (Ignores Airfl ow Reading )
 Force Damper Full Closed (Ignores Airfl ow Reading )
 Force to Maximum Airfl ow/Damper Setpoint
 Force to Minimum Airfl ow/Damper Setpoint (for the
current Supply Air Mode)
 Force to Fixed Airfl ow/Damper Setpoint
 Force Damper to Re-Calibrate
The Force to Fixed Airfl ow/Damper mode also has a setpoint associated
with it. This allows the user to provide a non-changing fi xed amount
of air into the space that doesn’t affect the Minimum or Maximum set-
points. That means the user doesn’t have to disturb the real minimum
and maximum setpoints to achieve a nonstandard setting during their
troubleshooting or air balancing modes.
The Force to Minimum mode uses the currently active minimum setting
based on the Supply Air Neutral, Cooling, or Heating modes. Whatever
mode the VAV/Zone Controller is in determines the minimum used by
the force mode.
The damper force modes will remain in effect until cancelled by the user
or until the power is removed. There are no force commands available
for the auxiliary relays.
29 VAV/Zone Controller Actuator Package Technical Guide
Sequence of Operations