Trebor Q-Series Di Water Heater - Manual (Page 29)

Q-SERIES DI HEATER OPERATION / MAINTENANCE MANUAL PAGE 29
ITEM DETAILS
Plumbing
Leaks Visually check DI water lines outside of heater cabinet for signs of leaks at the
connections. (A leak sensor will detect leaks, but this periodic visual check is
recommended.) Also, visually check bottom of cabinet inside heater module
enclosure for DI water leaks. Tighten fitting(s) if necessary. If heater module
is leaking, contact Trebor for instructions.
Overpressure
Relief Drain &
Diaphragm Visually check the drain line for water running from the heater. The
overpressure burst fitting can start leaking if the system has experienced
pressures above 60 PSIG. The burst fitting can be checked by inspecting the
relief port at the back of the cabinet. No water should be present in the relief
drain since it is required to be plumbed to an open drain. If water is present in
the drain plumbing, the fitting should be replaced.
General
Electronics Visually check electronics inside control enclosure for any signs of
overheating, deformation, or corrosion.
Solid State
Relays The SSR’s should be free of corrosion at the terminals and should not have
signs of overheating or deformation. The wires attached to the SSR’s should
be clean and in good condition. Check and tighten mounting screws for
optimum heat transfer to heatsink.
Main Circuit
Breaker The main circuit breaker should be checked for signs of loose connections at
the termination lugs. Damaged lugs should be replaced. The terminals should
be checked for tightness.
Distribution
Breakers &
Contactors The distribution breakers and contactors should be checked for signs of loose
connections at termination lugs. Damaged lugs should be replaced. The
terminals should be checked for tightness.
Branch
Circuit
Breakers These should be checked for signs of loose connections at the termination
lugs. The terminals should be checked for tightness.
Verify torque at least every 6 months with a calibrated torque wrench. Do
not over tighten. Consult factory with questions.
Label Part
Number
Description Torque Value
MCB1 Circuit Breaker, 3 Pole, 480VAC, 60-225A 26.0 Nm / 230.1 in-lb
MCB1 98003859 Connection Terminal Block, 6 Wire, 14-6AWG 6.0 Nm / 53.1 in-lb
CB1-4 98003862 Circuit Breaker, 3 Pole, 480VAC, 50A 5.6 Nm / 49.6 in-lb
CONT 1-4 98003864 Contactor, 50A, 400V, 3 Pole, 24VDC 2.5 Nm / 22.1 in-lb
SSR 1-8 98004141 SSR, 125A, 4-32VDC 3.7 Nm / 32.7 in-lb
CBH 1E1-12E2 98003865 Circuit Breaker, 2 Pole, 480VDC, 15A 2.5 Nm / 22.0 in-lb
CB5 98003867 Circuit Breaker, 1 Pole, 480VAC, 3A 2.5 Nm / 22.0 in-lb
CB6 98003866 Circuit Breaker, 3 Pole, 480VAC, 6A 2.5 Nm / 22.0 in-lb
24VDC-PS 98003781 Power Supply, 10A, 320-575VAC, 3 Phase 0.6 Nm / 5.3 in-lb
TLM 1 98004131 16 Channel Temperature Controller 0.4 Nm / 3.1 in-lb
98003505 Connection Block, NO, 24VDC 0.8 Nm / 7.1 in-lb
98003520 Connection Block, NC, 24VDC 0.8 Nm / 7.1 in-lb