Control Sequences; Sequences Overview (Setting Via Parameter P) - Siemens RDG100 Documentation

Parameter
Sequence
Mode Heating mode
Available
for basic
1)
application :
2-pipe,
2-pipe & el. heater
2-pipe & radiator
4-pipe
4-pipe & el. heater
2-stage heating or
cooling
Notes
20 / 60
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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).
P01 = 0 P01 = 1
T °C
Cooling mode
1) Chilled / heated ceiling and radiator applications, see section 4.7.9
2) Manual and automatic changeover for 4-pipe applications, see section 4.7.6:
– 4-pipe manual changeover (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
RDG100.../RDG110.../RDG140.../RDG160... Basic Documentation
Functions
www.heronhill.co.uk
P01 = 2
T °C
T °C
Manually select
Automatic
heating or
heating/cooling
cooling mode
changeover via
external water
temperature
sensor or
remote switch
2)
P01 = 3 P01 = 4
T
T °C
Heating and
cooling mode,
i.e. 4-pipe
2)
CE1P3076.en
28 May 2009
Fax: 01823 665807
T °C