RET 230 HCW-3 - Danfoss.com
RET 230 HCW-3 - Danfoss.com
RET 230 HCW-3 - Danfoss.com
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
GB - Installation Instructions<br />
4<br />
Product overview<br />
The thermostat is designed for use in systems equipped<br />
with fan coils served by a 2-pipe central changeover system.<br />
The thermostat controls the operation of a motorized valve<br />
which, during heating periods, opens when heat is required<br />
and which, during cooling periods, opens when cooling is<br />
required.<br />
The changeover from heating to cooling is achieved<br />
automatically by measuring the temperature of the fl ow<br />
pipe. If the fl ow temperature exceeds 30°C the thermostat<br />
operates as a heating thermostat, if the fl ow temperature<br />
is less than 16°C the thermostat operates as a cooling<br />
thermostat<br />
!<br />
Important note: It is essential that the circuit in which<br />
the pipe sensor is located is not closed off and that water<br />
circulates past the sensor at all times. This may require<br />
the fi tting of a bypass valve between system fl ow and<br />
return at the end of each circuit.<br />
Installation<br />
First remove the wallplate from the back of the unit.<br />
Ensure that there is a minimum of 50mm above the<br />
unit and 100mm below the unit in order to mount the<br />
plug-in module.
Change language