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Helios Rectifier 25/48NT5C06D Installation and User Manual
5. Maintenance
The NT5C06D rectifier is virtually maintenance free. It requires periodic
float / equalize verification (once every six months) and air filter replacement
as required.
Note:
If the unit operates in a dusty environment the optional
air filter is recommended. It must be inspected and
changed, or thoroughly cleaned, at least every 12 months,
or sooner if the dust level is high.
CAUTION
Do not install a wet filter on the unit.
To remove the filter, simply unscrew it. Re-install it by reversing the
operation.
Float / equalize
The float/equalize voltage level of the rectifier can be verified and adjusted
with the rectifier in, or out of service. To verify the equalize setting point
with the rectifier out of service, proceed as follows:
Procedure 6 - Adjusting the float / equalize
Step Action
1 Open the DC circuit breaker.
2 Put the FLT/EQL switch to the EQL position.
3 If the voltage requires readjustment use the EQL potentiometer to set the
equalize voltage to the new level.
4 Release the FLT/EQL to FLT.
5 Close the DC circuit breaker.
continued