Danfoss RET 230 HCW-1 Installation Instructions Manual page 5

Fix at a height of approximately 1.5m from the fl oor,
away from draughts or heat sources such a fan-coil
outlets, sunlight or offi ce equipment.
Pipe sensor location
Fix the pipe sensor to the fl ow pipe using the clamping
band supplied.
!
Important note: It is essential that the circuit in which
the pipe sensor is located is not closed off and that
water circulates past the sensor at all times when the
system is in operation. This may require the fi tting of a
bypass valve between system fl ow and return to ensure
circulation past the sensor.
BYPASS
PS1
%
PS1
5