11
Miscellaneous Preventative Maintenance
Monthly Checks
Corrective Procedures
Check that all applicable lights, gauges,
and optional indicators are functioning
properly
(Power On)
Replace necessary components
Check the cooling solenoid operation by
elevating setpoint temperature manually.
While in the heating mode, push the
manual air purge button. Listen for the
cooling solenoid's audible energizing and
de-energizing "clicking sound." Observe
process temperature decreasing. (Power
On)
Using a Voltmeter, determine if solenoid
coil is energizing
Replace solenoid valve, if necessary
Check the controller calibration by setting
the controller for three random setpoints
within the operating range of the system.
Observe that the process temperature
output is within the accuracy of the
controller. (Power On)
Calibrate controller using Section 5 in the
instruction manual (Power On)
Verify the thermocouple wires at controller
are secure
If controller does not respond to any of the
above steps, consult the Mokon factory
Do not attempt repairs as the
warranty could become void.
Check the system for leaks at operating
temperatures. As the system reaches the
setpoint temperature, visually check for
leaks.
Repair leaks and/or tighten fittings
Replace necessary parts
