Dantherm NF-8HD Manual - Página 18

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MAINTENANCE INSTRUCTIONS for the filter control unit NF-8HD / NF-16HD

Safety precautions

Adjustment of electrical controllers with the casing removed may only be carried out by spe-

cialised personnel and in full accordance with the stipulated safety rules.

The top cover of the electrical control unit is shielded at low voltage except at the connection

terminals for the voltage supply.

230 V AC or 110 V AC are applied at the terminals to the voltage supply L230 (1), L110 (2)

and N (3) (or possibly another especially prescribed voltage)

In addition the safety recommendation NF10 must be observed.

A stable operating filter control system is achieved by regular maintenance.

• Check the pressure drop on LED's

• Acoustic valve control

• Check that down-time-cleaning is active

• Clean the controller with a moist cloth

• Activate

∆p

-MAX

Activate / de-activate

#The shorter of the two periods is to be taken.

∆p

-MIN

Cat.20 / Tab. 05.91 / Page 08.01

Daily on plant operation start up

Monthly / after every 300 hours of operation#

Monthly / after every 300 hours of operation