Siemens RDF302 - Setpoints and Sequences

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Siemens RDF302 Basic documentation CE1P3079en
Building Technologies 07 Dec 2011
3.6.7 Setpoints and sequences
On changeover applications, the Comfort setpoints for heating and cooling
sequence are the same (w).
On 2-pipe applications with electric heater, the Comfort setpoint is either at the first
heating sequence (in heating mode) or at the cooling sequence (in cooling mode).
The setpoints for Economy and Protection mode are below the Comfort setpoints
(heating) and above the Comfort setpoints (cooling).
They can be set via parameters P11, P12 (Economy mode) and P65, P66
(Protection mode).
w
3181D127
T[°C]
w
HeatProt
w
CoolProt
w
HeatEco
w
CoolEco
Comfort mode
Economy / Protection mode
Application
Heating Cooling
Heating Cooling
2-pipe
2-pipe and
electric heater
1) If P13 = ON
2) In case of manual changeover (P01 = 2), the first heating sequence is disabled to prevent heating
(electric heater) and cooling (coil) at he same time
W = setpoint in Comfort mode
W
HeatEco/Prot
= setpoint heating in Economy or Protection mode
W
CoolEco/Prot
= setpoint cooling in Economy or Protection mode
YR = radiator sequence
YE = electric heater sequence
2-pipe applications
Y
T
W
HeatEco/Prot
W
CoolEco
/
Prot
YE
1)
Y
T
W
HeatEco
/
Prot
YE
2)
Y
T
W
YE
1)
Y
T
W
YE
2)
Y
T
W
CoolEco
/
Prot
Y
T
W
HeatEco
/
Prot
Y
T
W
Y
T
W