Danfoss ECL Comfort 210 Installation Manual page 21

Installation Guide
A230.2:
Terminal Sensor / description
29 and 30 S1 Outdoor temperature sensor* ESMT
28 and 30 S2 Room temperature sensor**
27 and 30 S3 Flow temperature sensor***
26 and 30 S4 Supply flow temperature
sensor
25 and 30 S5 Return temperature sensor
24 and 30 S6 Return temperature sensor
23 and 30 S7 Flow / heat meter
22 and 30 S8 External voltage (0–10 V)
* The outdoor temperature sensor can be connected in order
to correct the desired flow temperature.
**
Only for room temperature sensor connection. The room
temperature signal can alternatively be available from a
Remote Control Unit (ECA 30 / 31). See 'Electrical connections,
ECA 30 / 31'.
*** The flow temperature sensor must always be connected
in order to have the desired functionality. If the sensor is
not connected or the cable is short-circuited, the motorized
control valve closes (safety function).
Factory established jumper:
30 to common terminal.
Connection of flow / heat meter with pulse signal
Danfoss District Energy
ECL Comfort 210, application A230
Type
(recomm.)
ESM-10
ESM-11 / ESMB /
ESMC / ESMU
ESM-11 / ESMB /
ESMC / ESMU
ESM-11 / ESMB /
ESMC / ESMU
ESM-11 / ESMB /
ESMC / ESMU
Wire cross section for sensor connections: Min. 0.4 mm².
Total cable length: Max. 200 m (all sensors incl. internal ECL 485
communication bus)
Cable lengths of more than 200 m may cause noise sensibility (EMC).
VI.LG.H1.02 DEN-SMT/DK 21