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Siemens RDG100…/RDG110…/RDG140.../RDG160… Basic Documentation CE1P3076.en
Building Technologies Functions 28 May 2009
4.7 Control sequences
4.7.1 Sequences overview (setting via parameter P01)
The sequence can be set via parameter P01.
The thermostats can be used in systems featuring:
• Heating only (P01=0)
• Cooling only (P01=1)
• Manual heating / cooling changeover (P01=2)
• Automatic heating / cooling changeover (P01=3)
• Heating and cooling mode (e.g. 4-pipe system) (P01=4)
The available modes depend on the application (selected via DIP switch, see
section 4.5).
Parameter
P01 = 0 P01 = 1
P01 = 2 P01 = 3 P01 = 4
Sequence
T °C
T °C
T °C
T °C
T
T °C
Mode
Available
for basic
application
1)
:
Heating mode Cooling mode
Manually select
heating or
cooling mode
Automatic
heating/cooling
changeover via
external water
temperature
sensor or
remote switch
Heating and
cooling mode,
i.e. 4-pipe
2-pipe,
2-pipe & el. heater
2-pipe & radiator
4-pipe
4-pipe & el. heater
2)
2)
2-stage heating or
cooling
1) Chilled / heated ceiling and radiator applications, see section 4.7.9
2) Manual and a
utomatic changeover for 4-pipe applications, see section 4.7.6:
– 4-pipe manual changeove
r (P01=2) means activating either cooling or
heating outputs
– 4-pipe automatic changeover (P01=3) means swapping the control outputs
according to a heating / cooling sensor or remote switch (main and secondary
application), see section 4.7.6
Note
s
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