Siemens RDG100T - Setpoints and Sequences; 2-Pipe and 2-Stage Applications

14 / 66
Siemens RDG100, RDG100T, RDG110, RDG140, RDG160 Basic Documentation CE1P3181en
Building Technologies Functions 14 Dec 2011
4.4 Setpoints and sequences
4.4.1 2-pipe and 2-stage applications
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).
On 2-pipe applications with radiator, the Comfort setpoint is either at the radiator
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 mode Cooling mode
Heating mode Cooling mode
2-pipe
2-pipe
& el. heater
2-pipe
& radiator
2-stage
heating or
cooling
1) If P13 = ON
2) In case of manual changeover (P01=2), the first heating sequence is disabled to prevent heating (el.
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
Y
T
W
CoolEco
/
Prot
Y
T
W
HeatEco
/
Prot
Y
T
W
Y
T
W
Y
T
W
HeatEco/Prot
W
CoolEco
/
Prot
YR
Y
T
W
HeatEco
/
Prot
YR
Y
T
W
YR
Y
T
W
YR
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