A
U
n
i
t
o
f
I
D
E
X
C
o
r
p
o
r
a
t
i
o
n
2472 DI HEATER OPERATION / MAINTENANCE MANUAL
PAGE 25
To locate source of leak remove panels to expose heater modules and
plumbing. The origin of the leak may be at one of the union flanges;
retightening the flange by hand may be all that is required. If there is
water leaking from the module outlet hole, remove top cap from heater
module to identify source of leak. In the case of a ferrule leak, tighten
fitting. Care needs to be taken when reinstalling the heater outlet
manifold so that the top surface of the heater module and the outlet
manifold are flush, to ensure that the top cap can be properly replaced. If
the leak is elsewhere, identify the location and contact Trebor
International.
Remove Heater Cap.
Inspect ferrule fittings (leads and thermocouple). Hand tighten, snug
with 5/8” wrench. Inspect tube fittings and hand tighten.
Inspect the joints after the module has thermo-cycled to ensure that
the leak has been stopped.
If the leak persists, contact Trebor International.
NOTE:
If water is leaking out of the heater leads, meaning from inside
the tubing that surrounds the grounding braid and Teflon® insulated wire,
the tubing integrity has been compromised and requires replacement of
the heater module. If water is leaking from the top and bottom cap welds,
replacement of the heater module is required.
Figure 7-2
7.1.e Overpressure Relief Replacement
Turn power off (see Section 2.5).
Drain system (see Section 2.1.c).
Remove and replace overpressure relief fitting (note orientation of
fitting.
Refill system.
