Operating instructions

3062449_0309 7
Installation
Installation, cascade module
- Remove the cascade module from its packaging.
- Fitting directly to the wall.
-
Connect one outside temperature sensor to boiler 1 (address 1;
boiler addressing, see page 26); alternative connection options see
under "Electrical connection / Outside temperature sensor".
- Install the outside temperature sensor at a north or north eastern
wall at a height of 2-2.5 m from the ground (cable grommet
pointing downwards).
- Wire the cascade module KM in accordance with the installation
diagram.
Cable cross-section for 230 V min. 0.75 mm²; for 24 V min.
0.5 mm².
Note: Never route on-site leads for outside temperature
and  ow temperature sensors together with mains
cables.
Mixer circuit pump
Mixer motor OPEN
Mixer motor CLOSE
Output A1
eBUS
Fault
12.5 cm
10.5 cm