4-Pipe Applications - Siemens RDG100 Basic Documentation

Application Heating and Cooling
4-pipe
Y
4-pipe & el.
Y
heater
Siemens
Building Technologies
4.4.2

4-pipe applications

On 4-pipe applications, the Comfort setpoint (w) is in the middle of the dead zone,
between the heating and cooling sequence.
The dead zone can be adjusted via parameter P33.
If manual changeover is selected, then either the cooling sequence or the heating
sequence is released. In this case, the Comfort setpoint is at the selected heating
or cooling sequence.
Comfort mode
Heating mode
Y
W T
YE
Y
W
T
1) Manual changeover, P01=2
W = setpoint in Comfort mode
W = heating setpoint for Economy or Protection mode
HeatEco/Prot
W = cooling setpoint for Economy or Protection mode
CoolEco/Prot
YE = electric heater sequence
RDG100, RDG100T, RDG110, RDG140, RDG160
Functions
1)
Cooling mode
Y
W T
YE
Y
W
T
Basic Documentation
Economy /
Protection mode
Heating and/or
1)
cooling
Y
W T
W
HeatEco/Prot
YE
Y
W
T
W
HeatEco/Prot
CE1P3181en
W T
CoolEco/Prot
W T
CoolEco/Prot
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14 Dec 2011