Temptek CF Series - Page 35

CF Series Portable Chiller : Air & Water-Cooled : 5 - 40 Tons
Page: 35
TEMPTEK, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-6352 Fax: 317-881-1277
Email: service@Temptek.com
Low Pressure Fault. After the compressor is
turned on, the control has a 15 second buffer for
the low pressure fault. If a low pressure condition
occurswithintherst15seconds,thecontrol
waitstheamountoftimespeciedbythe“LP
TIME” potentiometer before indicating an fault
and turning off the compressor. If the condition is
corrected before the time expires, no fault occurs.
If a low pressure condition occurs 15 seconds
after the compressor turns on, the instrument
waits 20 seconds before indicating a fault and
turning off the compressor.
Note: refer to section 4.4 of this manual for additional Low Refrigerant Pressure
troubleshooting.
E. TEMPERATURE DISPLAY
1. A three digit display window indicates the appropriate temperature. The window
also displays the numeric value for the setpoint temperature.
2. The To Process temperature is always displayed unless a button has been
pressed. If there is a probe error, the display will show three dashes “---”.
3. When the water temperature in the chiller is above approximately 100°F the
display will show three dashes “---”.
F. PRESSURE GAUGES
1. PROCESS PRESSURE GAUGE: Indicates process pump pressure.
2. REFRIGERANT HEAD PRESSURE GAUGE: Indicates refrigerant pressure on
the discharge side of the compressor. The refrigerant head pressure is also the
condensingpressurewhichiscriticaltoequipmentefciency.
3. LOW PRESSURE GAUGE: Indicates refrigerant pressure on the suction side of
thecompressor.Thispressurewilluctuatewiththeprocesstemperature.
Low Pressure Potentiometer.
Pressure
gauges
15 ton air-cooled portable chiller
shown.
10 ton air-cooled portable
chiller shown.
Pressure
gauges