Siemens RDF302 User Manual

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Siemens RDF302 Basic documentation CE1P3079en
Smart Infrastructure 2022-06-17
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).
Parameter
P01 = 0
P01 = 1
P01 = 2
P01 = 3
P01 = 4
Sequence
Available
for basic
application
1)
:

Heating
Cooling
= heating
sequence for
el. heater
Manually select
heating or
cooling
sequence
(using the
button on the
thermostat)
Automatic
heating /
cooling
changeover via
external water
temperature
sensor or
remote switch
Heating and
cooling
sequence, i.e.
4-pipe
2-pipe,
2-pipe & el heater
✓
✓
✓
✓
4-pipe
✓
2)
✓
2)
✓
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.
Notes:

Siemens RDF302 Specifications

General

Brand	Siemens
Model	RDF302
Category	Thermostat
Language	English