Danfoss ECL Comfort 310 Operating Manual page 27

Operating Guide
2.5.2 Electrical connections, Pt 1000 temperature sensors and signals
See the Installation Guide (delivered with the application key) for
sensor and input connections.
P318
Sensor Description
S1 Not used
S2
Supply temperature
sensor*
S3
P318.1: Charging
temperature sensor*
P318.10: DHW flow
temperature sensor*
S4 Not used
S5 Return temperature
sensor
S6 P318.1: Upper
buffer-tank
temperature sensor*
P318.10: Not used
S7 Not used
S8 P318.1: Lower
buffer-tank
temperature sensor*
P318.10: Not used
S9 DHW circulation
temperature sensor
S10 Not used
Temperature sensors must be connected in order to have the
desired functionality.
*
If the sensor is not connected or the sensor cable is
short-circuited, the motorized control valve or control pump
closes / stops (safety function).
Danfoss District Energy
ECL Comfort 310, application P318
Recom-
mended
type
ESM-11 /
ESMB /
ESMC /
ESMU
ESM-11 /
ESMB /
ESMC /
ESMU
ESM-11 /
ESMB /
ESMC /
ESMU
ESMB /
ESMU
ESMB /
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.JM.Q3.02
DEN-SMT/DK 27