Installation Instructions

6 720 813 621 (2014/12) MM100
14 | Product details
2.4 Cleaning and care
▶ If required, wipe the enclosure with a damp cloth. Never
use chemically aggressive or acidic cleaning agents.
2.5 Supplementary accessories
• For heating circuits with or without mixer:
– Heating pump; connection to PC1
– Flow temperature sensor – system for low loss header
(optional; not possible with all user interfaces);
connection to T0
– Temperature switch; connection to MC1; when limit
temperature is exceeded, power supply to terminal 63
- PC1 is interrupted; if there is no temperature switch in
the heating circuit without mixer or in the constant
heating circuit, connect jumper ( Fig. 1 [2],
page 91) to MC1 (included in standard delivery).
• Additional accessories for heating circuit with mixer:
– Mixing valve actuator; connection to VC1
– Flow temperature sensor in assigned heating circuit;
connection to TC1
• Additionally, for a constant heating circuit:
– External signal for heat requirement; connection to
MD1 (the pump is only switched on if the external heat
requirement is enabled on the user interface)
– Mixing valve actuator (optional); connection to VC1
– Flow temperature sensor in assigned heating circuit
(optional); connection to TC1
• For cylinder primary circuit (e.g. after low loss header):
– Cylinder primary pump; connection to PC1; connect
jumper ( Fig. 1 [2], page 91) toMC1
– DHW circulation pump (optional); connection to VC1
(terminal 43: DHW circulation pump phase/terminal
44: not assigned)
– Flow temperature sensor for low loss header (optional;
not possible with all user interfaces); connection to T0
– Cylinder temperature sensor; connection to TC1.
Installation of additional accessories
▶ Install additional accessories according to legal
requirements and the instructions supplied.
Permissible ambient
temperature
0 - 60 °C
IP rating
• for installation in heat
source
• for wall-mounted
installation
• Determined by the IP rating
of the heat source
•IP44
Protection class I
ID no. Data plate ( Fig. 18, page 97)
°C  °C  °C 
8 25065 38 7174 68 2488
14 19170 44 5730 74 2053
20 14772 50 4608 80 1704
26 11500 56 3723 86 1421
32 9043 62 3032 – –
Table 4 Test measurements for the flow temperature sensor
(included in scope of delivery)
Technical data
Table 3