24
Operation manual VARION® C-POWER – S, M, M+ /
06.2019
Assembly
5.3.9 Connecting the control cabinet
D
WARNING!
Risk of injury from electric shock.
The cables must be deenergised during assembly.
A
Deenergise the cables.
A
Ensure that the cables remain deenergised during
installation.
D
ATTENTION!
Risk of damage caused by the incorrect matching of
connectors.
Having the wrong polarity on the connection terminals can
seriously damage the control mechanism.
A
Ensure correct polarity on the connection terminals.
A
Connect the supply voltage to a right-rotating field.
All cables must be fed into the control cabinet through the
cable connections from underneath.
Use the enclosed wiring diagrams to identify the connection
terminals.
Wiring diagrams.
Please refer to the technical data for the permissible cross-
sectional areas of the supply lines.
Technical data.
A
Open the control cabinet.
A
Connect the temperature sensors (T1-T5).
A
Connect the modem.
The connection of additional components depends on the
heating system.
D
“12.1 Hydraulic diagrams” (page 36).
A
Connect any additional components (e.g. peak load
boiler, equipment of the building control technology) to
the control mechanism.
Once all components have been connected:
A
Make sure that the mains connection is de-energised.
A
Connect the supply voltage to the control cabinet.
A
Close the control cabinet.
5.3.10 Checking the connections
Once the assembly process is complete, the following points
must be checked:
B
Leak-tightness of all lines.
B
Flexibility of all lines to the generation unit.
B
Tight fit of all connections in the control cabinet.
B
No damage, kinks or pinches in the cabling and lines.
B
The siphon of the condensate drain is filled with water.
B
Tension-free installation of all lines to the generation
unit.
A
Check the system.
If the exhaust air and flue gas are extracted together:
A
Ensure that the system is fitted with a suitable exhaust
air kit.
If the exhaust air or flue gas is extracted in combination with
another heat source (peak load boiler or another system):
A
Ensure that the system is fitted with a suitable backflow
preventer.
