Danfoss ECL Comfort 210 Installation Manual page 72

Installation Guide
A375 only:
Connection of voltage signal (0–10 V) for external control of
desired boiler temperature
72 DEN-SMT/DK
ECL Comfort 210 / 310, application A275 / A375
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.L1.02
ECL 310
Danfoss District Energy