Siemens RDG20 KN Series - Page 173

Connection
Application examples
6
A6V11545892_en--_e
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2-pipe and 2-stage application with radiant heating/cooling panels, the fan only
operates with the fan coil unit:
● Heating sequence: 1
st
panel and 2
nd
fan coil unit
● Cooling sequence: 1
st
fan coil unit and 2
nd
panel
Commissioning
Outputs used
● Fan P350 = 6 (Cooling and
2
nd
stage heating)
● Valve P201 = 5 (panel)
● Valve P203 = 5 (fan coil unit)
● Swap P254 = 1
● M1 DC 0...10 V fan
(2
nd
stage)
● V1 DC valve panel
● V2 DC valve fan coil
unit
See Technical data [➙ 177] for min. and
max. ratings
RDG26..KN
Example 2:
Swap and fan in the 2
nd
stage