Mokon Duratherm - 3.3 Changing Temperature Settings; 3.4 Shut Down Procedure

7
o Open electrical cabinet panel door. Note: That the electrical power is engaged
at this point and caution must be observed while the cabinet panel is open.
o Identify the motor starter block. This block consists of the motor starter contactor
and the overload relay.
o Place an amp meter on a single power lead coming from the overload relay.
o Locate the motor name plate on the pump motor housing. The full load amp rating
for the motor is listed on the name plate.
o Engage the electrical power supply and start the unit.
o The amp meter will display the motor amps. Compare the actual motor amps as
displayed on the amp meter to the full load amp rating as listed on the motor name
plate.
o If the amp draw is excessive (higher than the listed name plate amp rating), a
throttling valve must be installed in the “from process” water line. The throttling
valve can be a gate valve or a ball valve.
o With the throttling valve installed, fully close the valve and then engage the pump
motor. Slowly open the throttling valve and monitor the motor amps as displayed on
the amp meter until the actual motor amps equal the listed full load amp rating of
the motor. The process flow is correctly adjusted. The valve should remain in this
position during operation.
3.3 Changing Temperature Settings
If a new temperature setting is required while the system is in operation, adjust the controller to
the new desired setpoint temperature. See Section 5 for controller instructions.
3.4 Shut Down Procedure
Cool the Mokon temperature control system down by reducing the setpoint temperature to 100
o
F
(38
o
C) or lower. When the system is cooled, push the "Stop" button to shut off the system. DO
NOT SHUT THE SYSTEM OFF AT ELEVATED TEMPERATURES, THIS CAN BE DETRIMENTAL
TO SYSTEM LIFE. The water and main electrical power to the Mokon temperature control system
may be turned off if desired but is not necessary unless the system is being relocated or for
prolonged shut down.
3.5 Restarting Procedure
 If the water lines and main electrical power have not been disconnected, refer to Section
3.1.
 If the water lines and/or the main electrical power have been disconnected, refer to Section
2.4 for Electrical Connections, Section 2.5 for Water Connections, and Section 3.1 for Initial
Start-Up Procedure.