Reflex Servimat M Mode D'emploi Original page 49

Maintenance task
▲ = Check, ■ = Service, ● = Clean
Check the controller settings,  9.3.3
"Default settings",  45.
Function test.
• Degassing of water from the
facility.
• Degassing of water from the
make-up.
When operating with water/glycol
mixtures
• Control of the mixing ratio.
• If necessary, adjust according to
manufacturer information.
10.1 Exterior leak test
Check the following Servimat components for leaks:
• Pump
• Screw connections
• Degassing valves
Proceed as follows:
• Seal any leaks at the connections or replace the connections, if required.
• Seal leaking screw connections or replace, if required.
10.2 Recurring inspection
Comply with all applicable national regulations for the operation of pressure
equipment. Before testing pressurised parts, they must first be depressurised (see
Removal). Arrange for Reflex Customer Service to perform the inspection.
To contact Reflex Customer Service,  12.1 "Reflex Customer Service",  51.
10.3 Cleaning
10.3.1 Cleaning the dirt trap
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.
Clean the dirt trap in the make-up and overflow line.
• After the degassing time has elapsed.
• After the maintenance intervals have elapsed.
An inspection is also required after longer lasting operation.
Proceed as follows:
1. Switch to Stop mode.
2. Close the ball valves upstream of the dirt trap (1).
3. Slowly screw the insert (2) out of the dirt trap.
– The residual pressure in the pipe section escapes from the dirt trap.
4. Remove the sieve from the insert.
5. Rinse the sieve with clean water.
6. Use a soft brush to clean the sieve.
7. Push the sieve onto the insert.
Conditions Interval
Annually
▲
▲ Annually
▲ Annually
Servimat M/L — 25.07.2024
8. Check the insert seal for damage
– If necessary replace the seal.
9. Screw the insert into the housing of the dirt trap (1).
10. Open the ball valves upstream of the dirt trap (1).
11. Vent the "PU" pump,  7.3 "Filling the device with water and venting",  40.
12. Switch to Automatic mode.
The dirt trap has been cleaned.
 Note!
Clean all other installed dirt traps (in the Fillset, for example).

Note!
Perform a fine adjustment of the hydraulic compensator, if the dirt traps
are heavily soiled.
10.3.2 Cleaning the tanks
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.
Clean the primary vessel and the secondary vessels from sludge deposits.
1. Switch to Stop mode.
2. Empty the vessels.
– Open the "FD" feed and drain valves and drain the vessels completely
of water.
3. Remove the hose connection between the primary vessel and the device and
the secondary vessel, if provided.
4. Remove the lower vessel covers from the vessels.
5. Remove any sludge from the covers and the spaces between the
diaphragms and the vessels.
– Check the membranes for tearing.
– Check the vessel interior walls for corrosion damage.
6. Fit the covers on the vessels.
7. Fit the pipe connections between from the primary vessel to the device and
to the secondary vessel.
8. Close the "FD" feed and drain valves at the vessels.
9. Use the "FD" feed and drain valve to fill the primary vessel with water,  7.5
"Filling the tanks with water",  41.
10. Switch to Automatic mode.
10.4 Checking switching points
Prerequisite for checking the switching points are the following correct settings:
• Minimum operating pressure P
operating pressure for the controller",  39.
• Level sensor at the primary tank.
Preparation
1. Switch to Automatic mode.
2. Close the cap valves upstream of the tanks and the "EC" expansion lines.
3. Record the displayed filling level (value in %).
4. Drain the water from the tanks.
Checking the cut-in pressure
5. Check the cut-in and cut-out pressure of the "PU" pump.
– The pump cuts in at P + 0.3 bar.
0
– The pump cuts out at P
Checking the Make-up "On"
6. If necessary, check the make-up value displayed at the controller.
– The automatic make-up is activated at a level display of 20 %.
Checking Insufficient water "On"
7. Switch off the make-up and continue to drain water from the tanks.
8. Check the displayed value for the "Insufficient water" filling level message.
– Insufficient water "On" is displayed at the controller at a minimum filling
level of 5 %.
9. Switch to Stop mode.
Maintenance
,  7.2 "Determining the P0 minimum
0
+ 0.5 bar.
0
English — 49