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Siemens RDF301, RDF301.50, RDF600KN Basic documentation CE1P3171en
Building Technologies Functions 2012-10-04
The “Floor temperature limitation” function influences the outputs listed in the table
below:
“Floor temp. limit” function has impact on
Application Output Y11 Output Y21
Heating
(P01 = 0/2/3)
Cooling
(P01 = 1/2/3)
Heat. and cool
.
(P01 = 4)
Remark
2-pipe H/C valve Y11 N/A
2-pipe & el heater H/C valve El heater Y21 Y21 *) Only el heater
4-pipe Heating valve Cooling valve Y11 N/A Y11
*) If P13 = ON
electric heater in cooling mode
Either floor temperature sensor or external room temperature sensor can be used.
Dew point monitoring is essential to prevent condensation on the chilled ceiling
(cooling with fan disabled, parameter P52). It helps avoid associated damage to
the building.
A dew point sensor with a potential-free contact is connected to multifunctional
input X1 or X2. If there is condensation, the cooling valve is fully closed until no
more condensation is detected, and the cooling output is disabled temporarily.
The condensation symbol “
” is displayed during temporary override and the fault
“Condensation in room” will be sent via bus.
The input must be commissioned accordingly (P38, P40).
See section 3.9 “Multifunctional input”.
If the “Button
lock” function is enabled by parameter P14, the buttons will be locked
or unlocked by pressing the operating mode button for 3 seconds.
If “Auto lock” is configured, the thermostat will automatically lock the buttons 10 /
20 seconds after the last adjustment (RDF301... / RDF600KN).
Note
Dew point monitoring
KNX
R
Fault state
Fault information
Button lock
27


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