THERMOJET
®
G-3700E SERIES
OIL PURIFIER SYSTEM
INSTALLATION AND OPERATING MANUAL
Doc #
77740151
Rev
03
Date
June 2020
Page
45
of
111
System Shutdown
ThermoJet Oil Purifiers are equipped with a timing relay which delays cessation of oil flow for 2
minutes after the power selector switch has been transferred from the ON to the OFF position.
The purpose of this delay is to allow sufficient time for the oil heater to “cool down.” During this
cooling interval the oil heater is inoperable and the oil temperature will decrease. At the end of the
2 minute delay the motor will stop running and the pump will cease to operated, and the oil
pressure will falls to zero.
To shut down the system,1) turn the selector switch form the ON to the OFF position, 2) allow the
system to operate until the motor turns off, 3) turn the main disconnect switch from the ON to the
OFF position.
If the unit is turned OFF for system maintenance, see the section of this manual titled
ROUTINE
MAINTENANCE.
If the unit is being turned OFF to temporarily decommission, turn off the
nitrogen supply and close all oil supply valves. If the unit is being decommissioned see the
section of this manual titled
REMOVAL FROM USE, DISPOSAL AND TRANSPORT
NOTICE:
For EMERGENCY SHUT DOWN switch the main
circuit breaker handle to OFF position.
3) Turn Main Circuit Breaker to
OFF Position
2) Heater ceases to operate. Heater
ON pilot light remains OFF as Oil
circulates to cool down. After 2 minutes
the system will automatically turn OFF
1) Turn ON-OFF Selector
Switch to OFF position
