Setpoints And Sequences - Siemens DF301 Basic Documentation

2-pipe applications
Application
Y
2-pipe
2-pipe and Y
electric
heater
44 / 92
Siemens...........................RDF301, RDF301.50..., RDF600KN, RDF600KN/VB, RDF600KN/S
Smart Infrastructure
3.6.8

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 w
HeatP rot
w w
HeatE co
Comfort mode
Heating Cooling
Y
W
T
YE 2)
Y
W
T
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 the same time
W = setpoint in Comfort mode
W = setpoint heating in Economy or Protection mode
HeatEco/Prot
W = setpoint cooling in Economy or Protection mode
CoolEco/Prot
YR = radiator sequence
YE = electric heater sequence
T[°C]
w
CoolProt
CoolEco
Y
W
T
YE 1)
YE
Y
W
T
Economy / Protection mode
Heating Cooling
Y
W
T
HeatEco/Prot
2) YE
Y
T
W
W
HeatEco/Prot
HeatEco/Prot
Basic Documentation
W T
CoolEco/Prot
1)
W
T
CoolEco/Prot
CE1P3171en
2020-02-21