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WattMaster WCC II User Manual

Page 175

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Section 3: Screen Descriptions

WCC II Operator’s Guide

Operator Interfaces

3-143

moves farther from setpoint, the delay time automatically gets
smaller which causes the actuator to move faster. When the actual
temperature is 3 °F or more from the setpoint deadband, the
actuator will be moving at full speed.

When the actual space temperature is just outside of the deadband,
the TUC will move the stepper motor one step and then wait for the
delay time before it moves again.

ON time

(Delay time in seconds) x 15

|---------|---------------------------------------------------------------------|
+-----------------------------------------------------------------------------+
|///////////|

|

+-----------------------------------------------------------------------------+

As the space temperature drifts farther from setpoint, the TUC will
shorten the delay time to cause the stepper motor to move faster.

On
Time

Delay time

|----|------------------------------------|
+---------------------------------------+
|/////| |
+---------------------------------------+

If the actual temperature is 3 °F or more from the deadband, the
TUC will shorten the delay time to the minimum amount to move
the stepper motor at full speed.

On

Delay

Time Time
|------ -|--|
+------+-+
|/////////| |
+------+-+

Notes: