14
Subject to change without notice | 83059600lUK | ait-deutschland GmbH
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.
11 Commissioning
CAUTION
Prior to commissioning the unit, the fan
protection grilles must be mounted and the
facing panels closed.
Relevant planning & design data of the system is
documented in full.
The relevant energy supply company has been
notified of operation of the heat pump system.
The system is air-free.
Installation check using the general checklist has
been completed successfully.
1. Ensure that the following points are fulfilled com-
pletely:
●
Right-hand (clockwise) rotating load supply field is
available at the compressor
●
The system is installed and mounted according to
this operating manual
●
The electrical installation has been carried out
properly according to this operating manual and
the local regulations
●
The power supply for the heat pump is equipped
with an all-pole circuit-breaker with at least 3 mm
contact spacing (IEC 60947-2)
●
The tripping current is complied with
●
The heating circuit has been flushed and vented
●
All shut-off devices of the heating circuit are open
●
The pipe systems and components of the system
are tight
2. Carefully fill in and sign the notice of completion
for the heat pump systems.
3. In Germany: Send notice of completion for heat
pump systems and general checklist to the man-
ufacturer’s factory customer service depart-
ment.
In other countries: Send notice of completion for
heat pump systems and general checklist to the
manufacturer’s local partner.
4. Arrange for the heat pump system to be com-
missioned by the manufacturer’s authorised after
sales service for a fee.
