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Regumaq X-45
Troubleshooting
9.3.2 Cleaning of the heat exchanger (storage
cylinder circuit side)
A loss of performance may also be due to contamination
of the storage cylinder circuit. As a further measure, the
storage cylinder circuit should always be fl ushed fi rst
before considering replacing the heat exchanger.
CAUTION
Risk of scalding due to hot media!
If the station has been in operation, there is a risk of
scalding due to unintentional escape of hot water
or water steam.
!
Allow the system to cool down.
!
Wear safety goggles.
CAUTION
Risk of burns on hot components!
Touching hot components can cause burns.
!
Wear safety gloves.
1
Disconnect the controller from the power supply at all
poles.
2
Close the shutoff ball valve for potable water (hot)
7
(position
in Fig. 1 on page 11).
3
Close the shutoff ball valve for potable water (cold)
9
(position
in Fig. 1 on page 11).
4
Close the shutoff ball valve for storage cylinder circuit
16
return (position
5
Close the shutoff ball valve for storage cylinder circuit
18
supply (position
6
Unscrew the caps of the fi ll and drain ball valves for
storage cylinder circuit return and supply (positions
19
and
in Fig. 1 on page 11).
7
Connect a fl ushing hose to each of these fi ll and drain
ball valves (positions
8
Slowly open the fi ll and drain ball valves (positions
19
and
in Fig. 1 on page 11) to initiate fl ushing.
Flush for at least 5 minutes.
9
Drain the liquid and the fl ushed residues from the
fl ushing circuit.
10
Close the upper fi ll and drain ball valve for storage
cylinder circuit return (position
11).
11
Close the lower fi ll and drain ball valve for storage
cylinder circuit supply (position
11).
12
Remove the fl ushing hoses.
13
Screw the caps back onto the fi ll and drain ball valves
for storage cylinder circuit return and supply.
50
in Fig. 1 on page 11).
in Fig. 1 on page 11).
6
19
and
in Fig. 1 on page 11).
6
in Fig. 1 on page
19
in Fig. 1 on page
NOTICE
Risk of damage due to pressure surge!
The abrupt injection of water into the station can
lead to damage, e.g. to the sensors or sealing
points.
!
Always open and close ball valves slowly.
14
Open the shutoff ball valves (positions
18
in Fig. 1 on page 11).
15
Restore the power supply for the fresh water station.
Z
Cleaning is completed.
6
6
7
9
16
,
,
and
138114082-V04.04.2022
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