Technical information

Page: 26
VL Series Portable Chillers, 2 to 40 Tons UGH021/0301
the compressor contactor. Engaging the compressor
contactor supplies electrical current to the compressor. This
action will decrease process water temperature.
4. CAPACITY CONTROL: illuminates when the instrument has
engaged the capacity control system.
E. TEMPERATURE DISPLAY
1. A three digit display window indicates the appropriate
temperature in Fahrenheit. The window also displays the
numeric value for the setpoint temperature. A red light will
illuminate beside the parameter currently being displayed.
a. TO PROCESS: indicates liquid temperature being
delivered from the chiller.
b. SETPOINT: indicates selected temperature control
point.
3.4 SHUT DOWN/DISCONNECT SEQUENCE
A. PRECAUTIONS/WARNINGS
1. The operator must precisely follow all shut down
procedures outlined in this manual. If the operator fails to
follow precisely all procedures outlined in this manual, an
unsafe condition can develop resulting in damage to the
unit or personal injury.
B. UNIT SHUT DOWN
1. To shut down the unit: toggle off the CHILLER ON rocker
switch. Maintain electrical power to the unit at all times
except for service purposes. If the unit is to be
disconnected from the process, disengage the voltage
supply before removing power cord and process lines.