Technical data

15
15
Installation
The accuracy of the FR110 is dependent upon the
installation location.
Any radiator in the same room as the FR110 should
NOT have a thermostatic radiator valve fitted.
The FR110 should be installed so that the overall
temperature of the property is monitored, for example,
hallways or landings and not be installed in a living room
or room with supplementary heating.
Fitting other accessories
Fit accessories, such as ISM1, according to the legal
requirements and the installation instructions supplied
with them.
Electrical connections
The FR110 does not require a 230V mains supply. Instead
connection is made to the boiler via a BUS system, on
the Heatronic 3 circuit board. All BUS connections are
polarity free.
To avoid inductive interference, lay all BUS cables separately
to lines of 230V or 400V (minimum spacing 100mm).
In case of external inductive interference, shield the cables.
This ensures that the cables are shielded from external
interference (e.g. heavy current cables, overhead wires,
transformer stations, radio and television sets, amateur
radio stations, microwave ovens etc).
Connecting the BUS link
Permissible cable lengths and cross sections for use with
the FR110 are shown in the table below:
Connect the controller to a boiler with BUS enabled
Heatronic 3.
Siting
Commissioning
Comprehensive installation and commissioning instructions
are found within the installation and user instructions
supplied with the unit.
Disposal
The disposal of packaging and redundant spare
parts should be carried out in an environmentally
responsible manner.
Cable length Cross-section
≤ 80m 0.40mm
2
≤ 100m 0.50mm
2
≤ 150m 0.75mm
2
≤ 200m 1.00mm
2
≤ 300m 1.50mm
2
0.3m0.3m
1.2 - 1.5m
0.6m
119mm
134mm
35mm
1.
2.
3.
Selecting the installation location