01AUG 1005GB
Cat.20 / Tab. 05.91 / Page 08.01
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.
Maintenance
A stable operating filter control system is achieved by regular maintenance.
•
Check the pressure drop on LED’s
Daily on plant operation start up
•
Acoustic valve control
Monthly / after every 300 hours of operation#
•
Check that down-time-cleaning is active
Monthly / after every 300 hours of operation
•
Clean the controller with a moist cloth
Monthly / after every 300 hours of operation
•
Activate
∆
p
-MAX
Activate / de-activate
∆
p
-MIN
Monthly / after every 300 hours of operation
#The shorter of the two periods is to be taken.
