Trebor Q-Series Di Water Heater - Manual (Page 24)

PAGE 24 Q-SERIES DI HEATER OPERATION / MAINTENANCE MANUAL
7 SYSTEM SHUT DOWN
The DI water heater may be shut down by the following methods:
Select the OFF button on the display panel to put the heater in
standby (heater element power will be disengaged).
Rotate “Main Breaker” to off position.
Turn off the facility power supply.
Lockout and tagout heater for maintenance or repair. Refer to
Section 2.3.