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Verfügbare Sprachen
Maintenance
1
"ST" dirt trap
1.
Switch to Stop mode.
2.
Close the ball vales upstream of the "ST" dirt trap (1) and the primary
vessel.
3.
Slowly unscrew the dirt trap insert (2) from the dirt trap in order for the
residual pressure to escape from the pipeline segment.
4.
Pull the mesh from the dirt trap insert and rinse it with clear water. Use a
soft brush for cleaning.
5.
Re-insert the mesh into the dirt trap insert, check the gasket for damage,
and screw the dirt trap insert back into the housing of the "ST" (1) dirt trap.
6.
Open the ball valve upstream of the "ST" dirt trap (1) and ball valve to the
primary vessel.
7.
Vent the "PU" pump, 8.5 "Venting the pump", 41.
8.
Switch to Automatic mode.
Note!
Clean all other installed dirt traps (in the Fillset, for example).
11.1.2
Cleaning the tanks
CAUTION
Risk of injury due to pressurised liquid
If installation, removal 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, removal or maintenance work.
•
Ensure that the system is de-pressurised before performing installation,
removal or maintenance work at the connection points.
Clean the primary tank and the secondary tanks from sludge deposits.
1.
Switch to Stop mode.
2.
Empty the tanks.
–
Open the "FD" feed and drain cocks and empty the tanks completely
from water.
3.
Remove the hose connection between the primary tank and the device and
the secondary tank, if provided.
4.
Remove the lower vessel covers from the tanks.
5.
Remove any sludge from the covers and the spaces between the
diaphragms and the tanks.
•
Check the diaphragms for tearing.
•
Check the tank interior walls for corrosion.
6.
Reinstall the covers on the tanks.
7.
Reinstall the flange connection betweens the primary tank and the device
and the secondary tank, if provided.
8.
Close the "FD" feed and drain cocks at the tanks.
9.
Use the "FD" feed and drain cock to fill the primary tank with water, 8.4
"Filling the tanks with water", 41.
10. Switch to Automatic mode.
11.2
Checking switching points
Prerequisite for checking the switching points are the following correct settings:
•
Minimum operating pressure P
•
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
0
48 — English
2
Dirt trap insert
, 8.2 "Variomat switching points", 40.
0
+ 0.5 bar.
Variomat 140 — 25.09.2020 - Rev. A
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.
10. Switch off the main switch.
Cleaning the tanks
If necessary, remove condensate from the tanks, 11.1.2 "Cleaning the tanks",
48.
Activating the device
11. Switch on the main switch.
12. Activate the make-up.
13. Switch to Automatic mode.
–
Depending on the filling level and pressure, the "PU" pump and the
automatic make-up will be switched on.
14. Slowly open the cap valves upstream of the tanks and secure them against
unintended closing.
Checking Insufficient water "Off"
15. Check the displayed value for the Insufficient water "OFF" filling level
message.
–
Insufficient water "Off" is displayed at the controller at a minimum
filling level of 7 %.
Checking Make-up "Off"
16. If necessary, check the make-up value displayed at the controller.
–
Automatic make-up is deactivated at a level display of 25 %.
Maintenance is completed.
Note!
If automatic make-up is not connected, you must manually fill the tanks
with water to the recorded filling level.
Note!
The setting values for pressure maintenance, filling levels and make-up
are provided in the chapter Standard settings, 10.3.3 "Default
settings", 44.
11.3
Inspection
11.3.1
Pressure-bearing components
Comply with all applicable national regulations for the operation of pressure
equipment. De-pressurise all pressurised components prior to inspection (see
disassembly information).
11.3.2
Inspection prior to commissioning
In Germany, follow the Industrial Safety Regulation
[Betriebssicherheitsverordnung] Section 15 and Section 15 (3) in particular.
11.3.3
Inspection intervals
Recommended maximum inspection intervals for operation in Germany
pursuant to Section 16 of the Industrial Safety Regulation
[Betriebssicherheitsverordnung] and the vessel classification of the device in
diagram 2 of the Directive 2014/68/EC, applicable in strict compliance with the
Reflex Installation, Operation and Maintenance Manual.
External inspection:
No requirement according to Annex 2, Section 4, 5.8.
Internal inspection:
Maximum interval according to Annex 2, Section 4, 5 and 6; if necessary, suitable
replacement actions are to be taken (such as wall thickness measurement and
comparison with the design specification which may be requested from the
manufacturer).
Strength test:
Maximum interval according to Annex 2, Section 4, 5 and 6.
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