Control Sequences; Sequences Overview (Setting Via Parameter P01) - Siemens DF301 Basic Documentation

Parameter
Sequence
Heating
Available
for basic
1)
application :
ê
2-pipe,
2-pipe & el heater
4-pipe
Note:
Siemens.........................RDF301, RDF301.50..., RDF600KN, RDF600KN/VB, RDF600KN/S
Smart Infrastructure
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
Cooling
*) 2-pipe with
el. heater
ü ü
1)
For chilled / heated ceiling and radiator applications, see section 3.6.6;
for compressor applications, see section 3.6.7.
2)
For manual and automatic changeover with 4-pipe applications,
see section 3.6.5:
– 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 3.6.5.
For the relation between setpoints and sequences, see section 3.6.8.
P01 = 2 P01 = 3
Manually select Automatic
heating or coo- heating /
ling sequence cooling
(using the changeover via
button on the external water
thermostat) temperature
sensor or
remote switch
ü
ü
2)
Basic Documentation
P01 = 4
T
Heating and
cooling
sequence, i.e.
4-pipe
ü
ü
ü
2)
35 / 92
CE1P3171en
2020-02-21