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
