NWDC
IM 26 MAR 2014 © 2014 Novatec, Inc. All Rights Reserved
Page 17
[Type text]
[Type text]
NWDC IM 26 MAR 2014
7
PRE-OPERATING SYSTEM CHECK
Once material, vacuum hose, water and electrical connections are made, the NWDC Series
dryer should be given a final checkout.
7.1 Starting The Dryer
Turn the main disconnect
switch to “ON” position to power the dryer.
To start the dryer depress the “ON/OFF” button on the controller.
The blowers and heaters are now energized and the desiccant wheel will begin turning
and start to dry the return air.
It will take several minutes and a couple revolutions
of the wheel, for the dew point to get down to the -40° dew point.
WARNING: E-STOP should only be used in True Emergency conditions.
Repeated use of emergency stop can cause dryer component failure.
Always use to turn dryer
“ON or “OFF”.
7.2 Checking Electrical Phase
Your NOVATEC NWDC Dryer includes Phase Detection. This is particularly
important for dryers that may be moved around the plant. When you turn the MAIN
Disconnect switch to the ON position, a Pop-Up Alarm will appear on the screen if
the connection is not correct. You should immediately correct this condition.
WARNING:
Any wiring procedure should only be done by a qualified electrician familiar with three
phase electrical wiring.
7.3 Changing From F° to C°
Degrees can be set to C or F on the NOVATEC SCREEN…
Basic Machine Configuration.
(See page 28)
NOTE:
All dryers are set to display temperatures in degrees F
when shipped. If you change the control to display degrees C,
you must also change the DIP switch located on Siemens
module 231-7PD22-OXAO located behind the electrical panel
access door.
DIP switch to change from
Fahrenheit to Centigrade
