14
Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
9 Insulate hydraulic connections
Insulate hydraulic lines in accordance with local
regulations.
1.
Open shut-off devices.
2. Perform a pressure test and check for leaks.
3. Insulate external piping on site.
4.
Insulate all connections, fittings and pipes.
5. If the device is used for cooling below 18°C
(only possible in combination with the wall-
mounted controller), the insulation must be vapour
diffusion-tight.
10
Set the overflow valve
NOTE
●
The activities in this section are only
necessary for the integration of storage
tanks in series
●
Complete the work steps quickly, otherwise
the maximum return temperature may be
exceeded and the heat pump switches to
high-pressure fault
● Turn the adjusting knob at the overflow
valve to the right to increase the
temperature difference (the temperature
drop), turn it to the left to reduce it
System is running in heating mode (ideally in cold
condition).
The IBN assistant already provides the option, in the
event of the integration of the storage tank in series to
adjust the overflow valve according to to the hydrau
-
lic 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 in %
● If the flow rate is the current flow rate (measuring
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
with 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 17) 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.
