Basic Documentation

Functions
Control sequences
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4.6 Control sequences
4.6.1 Overview of Sequences (setting via P01)
The main control sequence (water coil sequence of the fan coil unit) can be set via
P01.
The following sequences can be activated in the thermostats (with or without
auxiliary heating).
The available sequences depend on the application (selected via DIP switches,
see Application overview [➙ 22]).
Parameter
P01 = 0
P01 = 1
P01 = 2
P01 = 3
P01 = 4
Sequence
Available for basic
application 1):
⇓
Heating
Cooling
= heating
sequence for electric
heater/radiator
Manually select
heating or cooling
sequence (using
HMI)
Automatic
heating/cooling
changeover via
external water
temperature sensor
or remote switch
Heating and cooling
sequence ,4-pipe
2-pipe
2-pipe with el. heater
(RDF660MB only)
-
4-pipe
-
-
2)
1)
For chilled/heated ceiling and radiator applications, see Chilled/heated ceiling
and radiator applications [➙ 36];
for compressor applications, see Compressor applications [➙ 36]
2)
For manual changeover with 4-pipe applications, see 4-pipe fan coil unit [➙ 35].
● 4-pipe manual changeover (P01 = 2) means activating either cooling or heating
outputs
For the relationship between setpoints and sequences, see Setpoints and
sequences [➙ 37].