Commissioning
13
Greenstar – 6721852556 (2022/11)
To remove the cover [1]:
▶ Release locking devices [2] with a screwdriver.
Fig. 26 Remove cover
▶ Undo locking screw [3].
▶ Feed the cable [4] through the cable clamp. Make sure that the cable
is long enough to reach the connections.
▶ Fix cable with locking screw [3].
▶ Connect the cable to the terminals.
Fig. 27 Securing the cables
7
Commissioning
Make all electrical connections in accordance with the wiring diagram
and then carry out the commissioning!
▶ Observe the installation instructions for all components and
assemblies in the system.
CAUTION
Risk of damage to system through pump failure!
▶ Fill and vent the system before switching it on so that the pumps do
not run dry.
Procedure:
To commission the overall system, follow the sequence of steps below
(described in the following chapters):
1. Fill flush and vent the system.
2. Adjust the control unit at the rotary selector
3. Adjust the heating circuit pump (if required).
4. Adjust the room control for the heat interface unit and the heating
circuit (if room control is installed).
5. Fill out the commissioning checklist.
7.1
Filling, flushing and venting the system
Purging the primary circuit
▶ Refer to CIBSE CP1 for water quality requirements and to BSRIA
BG29 for system flushing.
The primary circuit can be flushed without heat interface unit using the
flushing kit which is available as an accessory.
▶ Close the shut-off valves on the primary side.
▶ Open the shut-off valve on the flushing kit to flush the pipework.
▶ Close the isolation valve once flushing is complete.
Fig. 28 Flushing kit shut-off valve (accessory)
Heat Interface Unit
CAUTION
Failure of the flow turbine
▶ Open several DHW draw-off points to prevent the formation of
compressed air pockets in the pipework.
▶ Carefully fill the system: slowly open the shut-off devices.
▶ To avoid water hammer:
slowly
open the shut-off valves at the cold
water inlet and hot water outlet.
▶ Flush the system correctly.
0010017851-01
0010017851-01
1
2
2
2
0010017854-01
0010017854-01
4
3
4
3
230V
0-30V
6720808928-38.1W
o
90°
90°
