67
12
Every 6 months*
Pressure switch on treatment tank
*
Reset pressure switch installed on treatment tank flange
*
.
The tank is not more protected by the pressure
switch and it may explode* due to overpressure.
*
only for the ECOmar S model in PP
13
Every 6 months /
Before prolonged stop
Treatment tank
Remove inspection flange and wash with direct water
jets.
Dirty tank may cause bacteria growth & bad odors
during prolonged stop.
14
Every 6 months /
On condition
Multimedia Filter Station
Perform a Backwash procedure (refer to the
MAINTENANCE INSTRUCTIONS
section)
Dirty filter may cause bacteria growth & bad odors
during prolonged stop and/or obstruction.
15
Every year /
On condition
Safe Filter of U.V. Sterilizing System
Open filter sump, remove bag cartridge and empty it.
Wash housing and bag cartridge.
Reinstall or replace the bag cartridge.
Dirty filter may cause bacteria growth & bad odors
during prolonged stop and/or obstruction.
16
Every year /
Every 9000 working hours
Sterilizer of U.V. Sterilizing System
Empty the system radiation chamber, remove the
germicide lamp(s) and replace the lamp(s), if necessary.
Undetected plant malfunctioning, due to U.V.
Sterilizing system out of service, could occur.
17
Every 5-10 years
Filling pump(s)
Macerating pump
Discharge pump
*
Make a general pump recondition
System does not work effectively.
18
Before prolonged stop
Dosing pumps
Rinse the dosing pumps with clean fresh water stored in
a different collection tank.
Corrosion of the dosing pumps and floating level
probes.
19
Before prolonged stop
Multimedia Filter Station
Perform a Backwash procedure (refer to the
MAINTENANCE INSTRUCTIONS
section)
Dirty filter may cause bacteria growth & bad odors
during prolonged stop and/or obstruction.
20
Before prolonged stop
Safe Filter of U.V. Sterilizing System
Open filter housing, remove bag cartridge and empty it.
Wash housing and bag cartridge by using a dish-
washing detergent.
Reinstall the bag cartridge in the housing and close it
well to the filter plug.
Dirty filter may cause bacteria growth & bad odors
during prolonged stop and/or obstruction.
21
Before prolonged stop
Sterilizer of U.V. Sterilizing System
Empty the system radiation chamber, remove the
germicide lamp(s) and store lamp(s) in a safe place.
Temperature below 0°C may freeze the water inside
the sterilization chamber and cause serious damages.
22
Before and after
prolonged stop
All items
Perform the related Special Procedure (refer to the
Winterizing procedure
section), if any.
Specific damages or malfunctions to STP system.
23
After a prolonged stop
Macerating pump (on skid)
Manually start the pump and stop immediately in case
of no rotation of the impeller.
Remove the back cover and rotate the axis manually.
Motor burns due to locked impeller.
24
After a prolonged stop
Filling pump(s)
Manually start the pump and stop immediately in case
of no rotation of the impeller.
Remove the back cover and rotate the axis manually.
Motor burns due to locked impeller.