Controls Of The Heat Source; 2.2.1 Output Control; 2.2.2 Flow Temperature Control; Supplied Parts - Bosch MU 100 Installation Instruction

2.2

Controls of the heat source

This control strategy is used when the heating system is
controlled using a building management system with a 0–10 V
controller output ( Fig. 22 at the end of the document).
Input voltage Flow temperature/
output setpoint
(wall-mounted
indoor unit)
0 V - 0.5 V 0 %/0 °C
0.6 V approx. 6 %/
approx. 15 °C
5.0 V approx. 50 %/
approx. 50 °C
10.0 V approx. 100 %/
approx. 90 °C
Table 2 Control based on output/flow temperature

2.2.1 Output control

Linear relationship between the 0–10 V signal (U in volts) and
the required performance (P in percent)
P / %
100
10
0,5 1
Fig. 1 Linear relationship between the 0–10 V signal (U in
volts) and the required performance P (in percent
with reference to the maximum system
performance)
The connected heat source is switched on and off according to
the required output.
MU 100 – 6721804146 (2019/10)

2.2.2 Flow temperature control

Linear relationship between the 0–10 V signal (U in volts) and
the required flow temperature  in °C with reference to the
minimum flow temperature range to the maximum flow
temperature range [default setting 20 to 90 °C]):
Status of wall-
mounted indoor
unit
off
on if > min. output
on
on/maximum
Fig. 2
The connected heat source is switched on and off according to
the required flow temperature.
2.3
Fig. 6 at end of document:
[1] Module
[2] Bag with strain relief
[3] Installation Manual
U / V
10
0010013227-002
/ °C
90
20
0,5 1
Linear relationship between the 0–10 V signal (U in
volts) and the required flow temperature

Supplied parts

U / V
10
0010024409-001

in °C)
17