Section 9-Maintenance; Operator Maintenance; Replaceable Parts - nvent 910 Series Installation, Operating And Maintenance Instructions

SECTION 9—MAINTENANCE

9.1 OPERATOR MAINTENANCE

9.2 REPLACEABLE PARTS

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The 910 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) may need periodic replacement. EMR versions may require periodic contactor
replacement.
CAUTION:
Make sure that the power to the controller is OFF when replacing the pilot lamps! Also, be
certain power is OFF to the controller 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 910 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 in a matter of minutes. A 910 appearing inoperative should be returned to the nearest
nVent Service Center for service.
WARNING:
Tampering with the 910 components without approval from nVent could result in the product's
warranty being void.