Trebor Q-Series Di Water Heater - Manual (Page 27)

Q-SERIES DI HEATER OPERATION / MAINTENANCE MANUAL PAGE 27
NOTE: Do not disassemble the heater module. There are no user
serviceable parts inside the module. If disassembled, any product
warranties will be invalid.
8.1.c Liquid Level Sensor Calibration
Contact factory for calibration instructions.
8.1.d Draining the System
Connect fluid inlet to an open drain line. (Alternate: If a drain line is
connected to the cabinet drain on the bottom of the heater enclosure,
the heater may be drained into the leak tray.)
Loosen a fitting in the upper manifold to release internal vacuum in
fluid lines.
The system will drain through the cold DI inlet; a small amount of
water will drain through fluid exit port.
Perform required maintenance.
Reconnect fluid inlet and outlet to process lines and refill the system.
8.1.e Leaks
When a leak has been detected it is recommended that the supply water
be shut off along with the main circuit breaker. Allow sufficient time for
the heater and plumbing to cool down before inspection.
NOTE: If water is leaking out of the heater module shroud a replacement
module will be required.