INSTRUCTIONS MANUAL AUTOMATIC FILTERS
FC/D-DP -FAC/D-DP
s.r.l.Milano - ITALY
Page 10 of 21
fcd-dp_mi-r2.doc –
r.2
5. End cycle and regeneration
5.1. End cycle
The unit is equipped with 2 pressure sensors plumbed on inlet and outlet line of the filters;
the sensors gauge the correspondent pressure (IN/OUT) and therefore also the differential
pressure; when the pressure drop across the filtering bed reaches the value of 0.8 bar (80 kPa),
the end-cycle is driven.
During normal service, possible peaks of pressure could cause a wrong indication of reached
max allowable pressure drop; in order to avoid that, the end-cycle driving is delayed of an
adjustable time. Hence the max pressure drop must remain for all the time of adjusted delay, to
drive the end-cycle.
The electronic micro-processor programmer allows also to run the regeneration according to
time schedule, at pre-set time and day (max 3 regeneration per day).
To set the regeneration by time only (regardless of pressure drop), proceed as follows :
- set at least 1 regeneration by time schedule
- enter as max allowable pressure drop (end-cycle) the value 10000.
To set the regeneration by pressure drop only (regardless of time), proceed as follows :
- delete any programmed regeneration by time control
- enter as max allowable pressure drop (end-cycle) the desired value (standard =80)
5.2. Regeneration
The regeneration is automatically controlled by the electronic programmer according to time
schedule or pressure drop.
The regeneration can also be started manually at any time, out of any automatic
programme, by keeping pushed for 3 consecutive seconds the button function of the
programmer.
For the correct use of the buttons function of the programmer, proceed as follows (see also
the chapter “How to use the buttons function of the programmer”):
•
push several times the button until ESC+C… appears on the display
•
push and keep pushed the button
ESC
and immediately afterthat the desired button funtion
(), keeping both pushed for 3 consecutive seconds.
Warning :
•
by pushing the button
ESC
without pushing the button functions within 2
seconds, the display skips visualization to menu; release and then push
again the button
ESC
to go back to visualization ESC+C…
•
The pushing of manual start of the regeneration, while the regeneration is
already running, has not any effect.
•
An undesirable regeneration can be interrupted, in any moment, by
keeping pushed the button RESET for 3 consecutive seconds.
When the manually started regeneration is completed, the unit will continue to work
according to previous programming.
DUAL arrangement only :
Regeneration can also be started manually for each column independent way :
press and keep pressed for 3 consecutive seconds the function button of the programmer, the
regeneration of column A is started; while pressing and keeping pressed for 3 consecutive
seconds the function button of the programmer, the regeneration of column B is started.
