13
Subject to technical amendments without prior notice | 83055800gUK – Translation of the original operating manual | ait-deutschland GmbH
10
Setting the overflow valve
NOTE
●
The activities in this section are only neces-
sary for integration of the storage tank in series
●
Complete the work steps quickly, otherwise
the maximum return temperature could be
exceeded and the heat pump will switch to
high-pressure fault
● Turn the rotary-push button on the overflow
valve to the right to increase the temperature
difference (the spread), turn it to the left to re
-
duce it
The system is running in heating mode (ideally in
cold condition).
If the storage tank is integrated in series, the IBN – as-
sistant allows you to adjust the overflow valve accord
-
ing to to the hydraulic system.
Confirm the IBN – assistant or:
The “Set bypass valve” menu item is set by default to
“No”. The overflow valve adjustment function is deac
-
tivated.
●
The UWP control signal is the indication of the
currently required pump capacity as a %
●
The actual flow rate is the current flow rate (meas
-
uring ac/- 200 l/h)
1.
Fully open the overflow valve, close the heating
circuits.
2. If the “Set bypass valve” menu item is set from
“No” to “Yes”, the circulation pump is activated to
100% – and the pump starts up.
3. If the control signal UWP reaches 100%, close
the overflow valve to the extent that the maximum
flow rate (
“Technical data / scope of supply”,
page 16) can be ensured.
1 Rotary-push button
2 Overflow valve
4. If you exit the “Set bypass valve” menu or at the
latest after one hour, the circulation pump switch-
es back to standard regulation.
5. Open valves to heating circuit.
