Installation
14b
It is important that the sensors are mounted in the correct 
position in your system. 
The temperature sensor mentioned below are sensors used 
for the ECL Comfort 200 and 300 series which not all will be 
needed for your application!
Outdoor temperature sensor (ESMT)
The outdoor sensor should be mounted on that side of the 
building where it is less likely to be exposed to direct 
sunshine. It should not be placed close to doors, windows or 
air outlets.
Flow temperature sensor (ESMU, ESM-11 or ESMC)
Place the sensor max. 15 cm from the mixing point. In 
systems with heat exchanger, Danfoss recommends that the 
ESMU-type to be inserted into the exchanger ow outlet. 
Make sure that the surface of the pipe is clean and even 
where the sensor is mounted.
Return temperature sensor (ESMU, ESM-11 or ESMC)
The return sensor should always be placed in / on a pipe with 
return water ow. 
Room temperature sensor (ESM-10, ECA 60 / 62 room
panel or ECA 61 / 63 remote control)
Place the room sensor in the room where the temperature is 
to be controlled. Do not place it on outside walls or close to 
radiators, windows or doors.
DHW temperature sensor (ESMU or ESMB-12)
Place the DHW temperature sensor according to the
manufacturer’s specication.
Boiler temperature sensor (ESMU, ESM-11 or ESMC)
Place the sensor according to the boiler manufacturer’s
specication.
Flow / air duct temperature sensor (ESM-11, ESMB-12, 
ESMC or ESMU types)
Place the sensor so that it measures a representative 
temperature.
Slab temperature sensor (ESMB-12)
Place the sensor in the slab.
Valid for ESM-11: Do not move the sensor after it has been 
fastened in order to avoid damage to the sensor element.