Set The Overflow Valve; Commissioning - Alpha-InnoTec SWC V Series Operating Manual

9 Set the overflow valve
NOTE
● The activities in this section are only
necessary for in-line tank integration.
● Complete the worksteps quickly, other-
wise the maximum return temperature
can 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).
In the IBN Wizard it is possible to set the overflow
valve according to the hydraulic system for integrati-
on of storage tanks connected in series.
Confirm IBN Wizard or make the setting via:
Service >> Settings >> Efficiency pump
The „Set overflow valve" menu item is pre-set to
„No". The overflow valve setting function is deacti-
vated.
• Control signal UWP is the display of the current-
ly requested pump delivery in %
• Actual flow is the current flow (measuring accu-
racy +/- 200l/h)
Subject to change without notice | 83057000bUK – Translation into English of the original German operating manual | ait-deutschland GmbH
► Open the overflow valve fully, close heating cir-
cuits
► Switch the „Set overflow valve" menu item from
No" to „Yes"; the circulation pump is then activat-
ed with 100% – the pump starts up.
► If the control signal UWP 100% has been
reached, close the changeover valve so that the
nominal flow can be ensured (see technical da-
ta).
1
overflow valve (1) adjusting knob (2)
► After leaving the „Set overflow valve" menu or
after 1 hour at the latest the circulation pump
switches back to default control
► Valves for heating open
10

Commissioning

Relevant planning & design data of the system is

documented in full.
The competent energy supplier has been

notified of operation of the heat pump system.
System is air-free.

Installation check using the general checklist

has been completed successfully.
1. E nsure that the following points are fulfilled
completely:
– Right-hand (clockwise) rotating load infeed
field is available at the compressor.
– Housing with the unit components is installed
and mounted according to this operating
manual.
2
21