Control Sequences; Sequences Overview (Setting Via Parameter P01) - Siemens RDF302 Documentation

Parameter
Sequence
Heating
Available
for basic
1)
application :

2-pipe,
2-pipe & el heater
4-pipe
Notes:
Siemens
Building Technologies
3.6

Control sequences

3.6.1

Sequences overview (setting via parameter P01)

The main control sequence (i.e. the water coil sequence of the fan coil unit) can be
set via parameter P01.
The following sequences can be activated in the thermostats (each without or with
auxiliary heating).
The available sequences depend on the application (selected via DIP switch, see
section 3.4).
P01 = 0 P01 = 1
T °C
Cooling
= heating
sequence for
el. heater
 
1) For chilled / heated ceiling and radiator applications, see section 3.6.5;
for compressor applications, see section 3.6.6
2) For manual and automatic changeover with 4-pipe applications, see section
3.6.4:
– 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 3.6.4
For the relation between setpoints and sequences, see section 3.6.7.
RDF302 Basic documentation
Functions
P01 = 2
T °C
T °C
Manually select
heating or
cooling
sequence
(using the
button on the
thermostat)

2)

P01 = 3 P01 = 4
T
T °C
Automatic Heating and
heating / cooling
cooling sequence, i.e.
changeover via 4-pipe
external water
temperature
sensor or
remote switch

2)

CE1P3079en
07 Dec 20111
T °C

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