Maintenance And Testing; Maintenance Instructions - Kessel EasyClean ground Multi NS 4 Einbau- Und Betriebsanleitung

8

Maintenance and testing

8.1 Maintenance and test/inspection intervals
8.1.1 Interval for general inspection
A general inspection (including leak test) must be carried out on this system every 5 years in accordance with DIN EN
1825.
8.1.2 Grease separator maintenance interval
The grease separator must be serviced annually by a competent person.
8.1.3 Pump technology maintenance interval
A maintenance date can be set at the control unit.
If the maintenance date has arrived, this is indicated by a plain text message on the display.
According to standard specifications, maintenance must be carried out at the following intervals:
1/4-yearly for systems in commercial operations
1/2-yearly for systems in apartment buildings
Yearly for systems in single-family homes
Visual inspection
The system must be checked once every month by the operator through observation of two switching cycles for opera-
tional ability and leak-tightness.

8.1.3.1 Maintenance instructions

Maintenance must be carried out by a technical specialist.
8.2 Prepare maintenance
WARNING
The tank of the separator does not have to be accessed for installation or maintenance purposes.
Nonetheless, if it is necessary to access a tank for unforeseen reasons, all the safety measures for entering cham-
bers must be taken (including testing the air to ensure that it is safe, and forced (mechanical) ventilation of the tank
if necessary, safety harnesses, tripod and look-out personnel.)
WARNING
The pump tank of the separator may be accessed for installation or maintenance purposes.
On accessing, all safety measures for entering chambers must be taken (including testing the air to ensure that it is
safe and forced (mechanical) ventilation of the tank if necessary, safety harnesses and look-out personnel, and tri-
pod).
NOTICE
Disconnect system from energy sources!
Ensure that the electrical equipment is disconnected from the power supply during the work.
Remove both covers.
Pump out the contents of the grease separator and pump sump with a wet vacuum cleaner.
Clean the grease separator and pump sump with a jet cleaner, pump out again.
Use a gripper and scraper to remove objects and deposits.
Perform visual check of the tanks.
Lift out the pumps:
Unhook the chain and thread into the lifting aid.
Pull up the chain slowly via the lifting aid.
Repeat the process for a second pump.
Place a slip-proof ladder in the pump chamber.
carry out maintenance of the level measurement and the backflow preventer, see following sections.
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