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WattMaster WCC II User Manual

Page 162

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Section 3: Screen Descriptions

WCC II Operator’s Guide

Operator Interfaces

3-130

Dead Band Width (+/-):

_____

Pulse Band Width:

_____

“ “ Off Time:

_____ Seconds

“ “ On time:

_____ Seconds

These inputs are not active when using the SAT II-A controller.
The dead band and time constant data for the pneumatic driver
or stepper motor actuator is entered on the TUC Set-up Screen/
Menu 2.

Reverse Action Selected when _______ is _______

The “Normal or Reverse” control mode for the SA actuator or
pneumatic (“feed” and “bleed”) output is chosen using this input.
When the value of the binary signal entered in this position is
“OFF,” the actuator or pneumatic output driver operate in the
normal control mode. When the value of the binary input signal
in this position is “ON,” the actuator or pneumatic output driver
operates in the reverse action mode if the reverse action mode has
been enabled on the TUC Setup Screen for each individual TUC.

For example, if the SA actuator is used to control a damper on a
variable air volume box, normally the actuator opens the damper
on a call for cooling. When the value of this input is “ON,” the
primary air damper is in the reverse action mode and opens on a
call for heat.

This input can also be used to force the 3 relay outputs on the TUC
OFF if desired.

Notes: