Connecting And Placing The Temperature Sensors - Danfoss C37 User Manual

14a
Connecting and placing the
temperature sensors
Connecting the temperature sensors and the bus
Terminal Description
15 and 16
17 and 16 S1 Outdoor temperature
18 and 16 S2 Room temperature sensor** ESM-10
19 and 16 S3 Flow temperature sensor
20 and 16 S4 Return temperature
21 and 16 S5 DHW tank temperature
22 and 16 S6 DHW tank temperature
* The system device bus / room panel / remote control is only active
when the outdoor temperature sensor is connected.
** Either room temperature sensor or room panel / remote control
*** If only one DHW tank temperature sensor is used, it must be connected
to terminal 22
Establish the jumper from 16 to common terminal.
Wire cross section for sensor connections:
Total cable length: Max. 125 m (all sensors incl. system device
Cable lengths of more than 125 m may cause noise sensibility
(EMC).
System device bus*,
connections for room
panel** / remote control** /
(relay module)
sensor
sensor
sensor, lower
sensor, upper***
2
Min. 0.4 mm
bus)
Type (recomm.)
ECA 60 / 62
ECA 61 / 63
ESMT
ESM-11 / ESMC /
ESMU
ESM-11 / ESMC /
ESMU
ESMB / ESMU
ESMB / ESMU