Danfoss ECL Comfort 310 Installation Manual page 37

Installation Guide
A376.9 — ECA 32:
Terminal Sensor / description
50 and 49 S11 Supply flow temperature
sensor*
51 and 49 S12 Return temperature sensor
52 and 49 S13 Return temperature sensor,
heating circuit 2
53 and 49 S14 0-10 V pressure transmitter
signal
54 and 49 S15 Alarm input, only in A376.9
55 and 49 S16 Alarm input, only in A376.9
*
The supply flow temperature sensor must always be
connected in order to have the desired functionality.
Factory established jumper:
49 to common terminal.
Connection of flow switch
Connection of switches, ECA 32
Danfoss District Energy
ECL Comfort 310, application A376
Type
(recomm.)
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.GU.B1.02 DEN-SMT/DK 37