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2.5
Additional accessories
For detailed information about suitable accessories, refer to
the catalogue or Internet page of the manufacturer.
•
Low loss header temperature sensor; connection to T0
•
Primary pump; connection to PC0
Installation of additional accessories
▶ Install the additional accessories in accordance with legal
regulations and the instructions supplied.
2.6
Cleaning
▶ Wipe the casing with a damp cloth when necessary. Never
use aggressive or caustic cleaning agents for this.
3
Installation
DANGER:
Danger to life from electric shock!
Touching live electrical parts can cause an electric shock.
▶ Before installing this product: Disconnect the heat source
and all other BUS nodes from the mains voltage across all
poles.
▶ Before commissioning: Mount the cover
( Fig. 20 at end of document).
3.1
Preparation for the installation in the heat
source
▶ Check by referring to the installation instructions of the
heat source whether it is possible to install modules
(e.g. EM100) in the heat source.
▶ If the module can be installed in the heat source without a
mounting rail, prepare the module ( Fig. 8 and 9 at end
of document).
3.2
Installation locations
▶ Install the module on a wall, ( Fig. 10 and 11 at end
of document), on a mounting rail ( Fig. 12 at end of
document), in an assembly or in the heat source.
▶ When the module is installed in a heat source, observe the
heat source instructions.
▶ Remove the module from the mounting rail
( Fig. 13 at end of document).
EM100 – 6720891034 (2019/04)
3.3
Installation of a temperature sensor on the
low loss header or downstream of the heat
exchanger
The low loss header temperature sensor T0 should as a priority
be connected to EM100. In wall mounted boilers equipped with
EMS plus, the sensor can also be connected to the device or a
MM100.
Installation on the low-loss header
( Fig. 23 and 25 at the end of the document)
Position of flow temperature sensor (T0):
A
T0
ϑ
1
1
2
ϑ
ϑ
2
4
Fig. 3
Position of flow temperature sensor (T0)
[1] all heat sources
[2] all heating circuits
A
low loss header model 1
B
low loss header model 2
overall flow temperature of all heat sources
1
overall return temperature of all heat sources
2
overall flow temperature of all heating circuits
3
overall return temperature of all heating circuits
4
T0
flow temperature sensor on the low loss header
T0 must be positioned so
sources [1] independently of the flow rate. This is the only way
also to ensure stable operation of the control with small loads.
To ensure optimum control response, the flow should circulate
around the temperature sensor. This can be achieved by a
combination of tee, tap extension and sensor set.
Installation
B
ϑ
3
ϑ
1
1
ϑ
2
0 010 013 230-001
is detected on the side of all heat
3
3
T0
ϑ
3
2
ϑ
4
15
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