oventrop Regumaq X-80, Operating Instructions Manual

Page: 9 / 10

Regumaq X-80 Potable water circulation set
Maintenance
7. Maintenance
Functional check of the check valve
The check valve prevents the potable water from
flowing back against the direction of circulation.
According to DIN EN 806, the backflow preventer
must be tested for function once a year.
1
2
Fig. 6: Ball valve
1
Lateral connection of the ball valve
2
Rotary handle
1
Close the ball valve by turning the rotary handle
(position
2
in Fig. 6 on page 9) by 90°.
2
Open the lateral connection of the ball valve (position
1
in Fig. 6 on page 9).
3
Check whether more medium escapes from the lateral
connection of the ball valve than in the riser between
the fresh water station and the ball valve.
4
If only a little medium escapes, the check valve
(position
4
in Fig. 2 on page 5) is intact.
5
If medium escapes continuously and possibly under
increased pressure, the check valve no longer closes
correctly.
6
If the function of the check valve is disturbed, it must
be cleaned and replaced if necessary. For the
procedure, follow the instructions in par. 5 on page
7.
7
If the check valve is intact, close the lateral connection
of the ball valve (position
1
in Fig. 6 on page 9).
8
Open the ball valve slowly by turning the rotary handle
(position
2
in Fig. 6 on page 9) by 90°.
Z
The functional check of the check valve is complete.
8. Troubleshooting
MALFUNCTION CAUSE REMEDY
The high-effi-
ciency pump
does not run.
The power sup-
ply is interrupt-
ed.
Check the pow-
er supply.
The high-effi-
ciency pump
has been
switched off by
the controller.
Check the set-
tings of the
controller.
The high-effi-
ciency pump
makes noise.
The high-effi-
ciency pump
runs dry.
Check the shut-
off valves. The
shutoff valves
must be open.
There is air in
the high-effi-
ciency pump.
Vent the circu-
lation pipe.
The medium is
not heated.
The check valve
is defective.
Replace the
check valve.
9. Disposal
When the product reaches the end of its service life or has
an irreparable defect, it must be dismantled and disposed
of in an environmentally friendly manner or the
components must be recycled.
NOTICE
Risk of environmental pollution!
Incorrect disposal can lead to environmental
damage.
!
Dispose of packaging materials in an
environmentally friendly manner.
!
If possible, recycle the components.
!
Dispose of non-recycable components
according to local regulations.
9 138159084-V02.03.2022