Danfoss ECL Comfort 210 Installation Manual page 20

Installation Guide
2.5.6 Electrical connections, Pt 1000 temperature sensors and signals
A230.1:
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
23 and 30 S7 Flow / heat meter
22 and 30 S8 Wind speed sensor
*
If the outdoor temperature sensor is not connected or the
cable is short-circuited, the controller assumes that the
outdoor temperature is 0 (zero) °C.
** 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
20 DEN-SMT/DK
ECL Comfort 210, application A230
Type
(recomm.)
ESM-10
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
Danfoss District Energy