Reflex Fillset Combi Originalbetriebsanleitung Seite 21

7.1 Maintenance
CAUTION
Risk of injury due to pressurised liquid
If installation, disassembly or maintenance work is not carried out correctly, there is a risk of burns and other
injuries at the connection points, if pressurised hot water or hot steam suddenly escapes.
• Ensure proper installation, disassembly or maintenance work.
• Ensure that the system is de-pressurised and cooled down before performing installation,disassemblyl or
maintenance work at the connection points.
The system separator is subject to compulsory regular maintenance. The maintenance must only be performed by
trained/approved personnel.
Proceed as follows:
• To check the air vent, close the two isolation valves upstream (1) and downstream (2) of the system
separator.
• Remove the pressure gauge plugs on the test connections (3&4).
• Install the maintenance ball valves (3&4).
• Open the maintenance ball valves (3&4) to depressurise the fitting.
• Install the needle valves (A&B) of the measuring device on the maintenance ball valves (3&4).
• Install the measuring device.
• Open both isolation valves (1&2).
• Vent the fitting via the two needle valves and draw off some water. Then close the needle valves again.
• Close the isolation valves (1&2).
• Slowly reduce the pressure via needle valve A.
• Monitor the drain funnel. The system must be leak-tight up to a pressure of 140 mbar, the first drops
must not escape until this pressure has been reached/exceeded, otherwise contamination or a
mechanical defect exists.
• Open needle valve A and depressurise the medium pressure chamber until it is completely empty.
• Close both maintenance ball valves (3&4).
• Remove the measuring device and refit the pressure gauge plugs in the test connections.
• Open both isolation valves (1&2).
Fillset — 11.2024
Commissioning and maintenance
English — 21