WattMaster WM-WCC3-TGD-01B - Manual (Page 784)

VAV/Zone Controller Technical Guide
Operator Interface 16
Start-Up & Commissioning
Initialization
Upon applying power to the VAV/Zone Controller the following should
occur:
On system power-up, the SCAN LED is extinguished for a few seconds
and then the controller “fl ashes” its address switch setting. If the address
switch were set to 7, you would see 7 fl ashes. After the address is fi nished,
the LED will extinguish for another 5 seconds. At the conclusion of
this 5-second delay, the LED will begin a continuous fl ashing while the
Damper Feedback limits are calibrated. If the Damper is driving open,
the LED will blink slowly. If the Damper is driving closed, the LED
will blink fast. When the calibration is completed, the normal diagnostic
fl ashes will commence. These diagnostic fl ashes are described later in
this document. In addition, during the fi rst few seconds of power-up, all
default setpoints are initialized and all outputs are turned off.
There is also a 30 second start-up delay to protect the fan and other
components from short cycling during intermittent power conditions.
If all inputs are operating correctly, the LED will blink once every ten
seconds.
Programming The Controller
The next step is programming the controller for your specifi c require-
ments. In order to confi gure and program the VAV/Zone Controller you
must have a personal computer with the WCC III computer front end
software installed. If you are going to use a personal computer and the
WCC III computer front end software, please see Section 4 - SCUSCR.
exe Screen Descriptions. It is recommended that you proceed with the
programming and setup of the controller in the order that follows:
1. Confi gure the Controller for your application.
2. Program the Controller setpoints.
3. Review Controller Status Screens to verify system
operation and correct Controller confi guration.
Figure 11: VAV Box CFM Design Specifi cations