22
Operation and maintenance, Discfilter HPF2200-series PFLC
5.2.4 Service mode HAND
HAND is only a service mode.
In order to operate the filter in HAND mode,
the following steps must be implemented:
1. Turn the mode selector shown in Figure 5.2 to
the HAND position.
2. Once the mode selector has been turned to
HAND, “HAND” will be shown in the opera-
tor panel main menu, see Figure 5.5. Press the
drum “Start” button, see Figure 5.5.
3. Press the pump “Start” button, see Figure 5.5.
The operator panel main menu also shows the water levels of unfiltered (In) and filtered water
(Out), as well as the level difference between them (Level Diff).
5.3 Backwash system
NB Prior to servicing, read section 2.7.
The system pressure for backwashing must be set to 6–9 (preferably above 6,5) bar. Newly con-
nected pipe systems for external backwash water should be rinsed through before they are con-
nected to the filter. Check that the nozzles are not blocked, see section 7.1.
Figure 5.5 Main menu on electrical cabinet operator panel.
(Indication of current backwash pressure is an option.)
