17
WFS 1545 Operations Manual
WARNING!
•
Accidental contact with electrically live components can cause serious injury or death.
•
Always disconnect electrical power from source and lock out/tag out when working inside
the Control Panel
•
Only trained and qualified personnel may open the Control Panel
Controls and power distribution components are mounted in a NEMA 12 enclosure. The enclosure is
mounted on the side of the Chiller. All selector switches, push buttons and indicating lights required
to operate the unit are mounted on the front of the control panel.
i.
Audible Alarm (Optional)
This lights up and may sound an audible alarm if a fault condition is detected. See ALARMS
section
4.h
ii.
E-Stop Push Button
The E-Stop push button stops all pumps and the chiller. It is detented. After it has been
depressed it must be physically pulled out to permit resetting the controls.
iii.
Power Selector Switch
This switch activates the control power. When it is first turned to the on position the red
Alarm indicating light will illuminate. If the Alarm light does not illuminate verify that the E-
Stop button has been pulled out.
iv.
Reset Push Button
This button “resets” the control system after a fault is detected by an optional sensor or an
E-Stop. It will clear the fault display if the fault condition no longer exists. It is also required
when first turning on the power.
