Thermal Care NQA13 - Drawings

66
Problem
Possible Cause
Remedy
Erratic temperature
control
Low coolant flow through evaporator
Adjust flow to proper level
Intermittent overloading of chiller capacity
Check to make sure chiller is properly sized for
process load
Hot gas bypass valve
Contact refrigeration service technician
Temperature sensor
Replace if faulty
Insufficient cooling
(temperature
continues to rise
above set point)
Process load too high
Check to make sure chiller is properly sized for
process load
Coolant flow through evaporator too high or low
Adjust flow to proper level
Insufficient condenser cooling
See “High Refrigerant Pressure”
Hot gas bypass valve stuck open
Contact refrigeration service technician
Refrigeration circuit problem
Contact refrigeration service technician
Temperature sensor
Replace if faulty
Drawings
We have prepared a custom set of drawings for your
unit and placed them inside the control panel prior
to shipment. Please refer to these drawings when
troubleshooting, servicing, and installing the unit. If
you cannot find these drawings or wish to have
additional copies, please contact our Customer
Service Department and reference the serial number
of your unit.