Setpoints And Sequence - Siemens RDG400 Basic Documentation

Application
Y
Single duct
Single duct
Y
with min/max
limitation
Comfort mode
Application
Single duct
Y
with
electrical
heater
Y
Single duct
with radiator
Siemens
Building Technologies
4.4

Setpoints and sequence

In single-duct changeover applications the Comfort setpoints for heating and
cooling sequence are the same (w).
In applications with electrical heater, radiator or heating / cooling coil the Comfort
setpoint is at the heating sequence.
The start of the cooling sequence is linked to "Dead-zone" above the Comfort
setpoint. The dead zone can be set via parameter P33.
The setpoints for Energy Saving and Protection mode are below the Comfort
setpoints (heating) and above the Comfort setpoints (cooling).
They can be set via parameters P11, P12 (Energy Saving) and P65, P66
(Protection).
The control signal for air flow can be limited via parameters P63 and P64.
See section 4.8.1.
To simplify the diagram below, only minimum limitation is shown.
w
HeatProt
w
HeatEco
Comfort mode
Heating mode Cooling mode
Y
W T
Y
W
T
Energy Saving
YE
Y
W T
YR
Y
W T
RDG100, RDG100T, RDG110, RDG140, RDG160 Basic Documentation
Functions
w w
CoolProt
w
CoolEco
Heating mode
Y
W T
Y
W
T
Protection mode
YE
Y
W W T
HeatEco CoolEco
YR
Y
W T
W
HeatEco CoolEco
T[°C]
Energy Saving / Protection mode
Cooling mode
Y
W
T
W
HeatEco
HeatProt
Y
W
W T
HeatProt HeatEco
YE
W W T
HeatProt CoolProt
YR
W T
W
HeatProt CoolProt
T
W W
CoolEco CoolProt
W W T
CoolEco CoolProt
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CE1P3182en
28 May 2009