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Siemens RDG100…/RDG110…/RDG140.../RDG160… Basic Documentation CE1P3076.en
Building Technologies Functions 28 May 2009
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
Energy Saving /
Protection mode
Application
Heating and Cooling Heating mode
1)
Cooling mode
1)
Heating and/or
cooling
4-pipe
4-pipe & el.
heater
1) Manual changeover, P01=2
W = setpoint in Comfort mode
W
HeatEco/Prot
= heating setpoint for Energy Saving or Protection mode
W
CoolEco/Prot
= cooling setpoint for Energy Saving or Protection mode
YE = electrical heater sequence
Y
T
W
Y
T
W
Y
T
W
YE
Y
T
W
HeatEco/Prot
W
CoolEco