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seCtIon 7 – maIntenanCe
7.1 operator maIntenanCe
7.2 repLaCeabLe parts
INDUSTRIAL HEAT TRACING SOLUTIONS
The 920 series controller is designed to be a maintenance-free product. Once installed properly,
the only maintenance required is retightening of the terminal connections approximately one week
after installation and inspection periodically thereafter. Also, alarm pilot lamps (if installed) and
contactors may need periodic replacement.
CAUTION:
Make sure that the power to the controller is OFF when replacing the pilot lamps! Also, be certain
power to the controller is OFF before attempting to test or service the heat tracing. Do not rely on
the controller as a disconnect device!
There are no user-serviceable parts in the 920 series controller or accessories, except lamps in
optional alarm pilot lights. The unit is designed to be modular and easily changed out in the field.
Modules appearing inoperative should be returned to the nearest Pentair Thermal Managament
Service Center for service.
WARNING:
Tampering with the 920 components without approval from Pentair Thermal Managament could
result in the product's warranty being void.
EN- Raychem920series-IM-H56874 05/15
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