Basic Documentation
Table Of Contents
- 1 About this document
- 2 Overview
- 3 Notes
- 4 Functions
- 4.1 Temperature control
- 4.2 Operating modes
- 4.3 Room temperature setpoint
- 4.4 Application overview
- 4.5 Additional functions
- 4.6 Control sequences
- 4.7 Control outputs
- 4.8 Fan control
- 4.9 Multifunctional input, digital input
- 4.10 Handling system faults
- 4.11 Modbus RTU mode
- 4.12 Communication objects
- 4.13 Control parameters
- 5 Connection
- 6 Technical data
- 7 Dimensions
- Index
Functions
Control sequences
4
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4.6.5 Chilled/heated ceiling and radiator applications
For chilled/heated ceiling and radiator applications
● Set the corresponding basic application see Application overview [➙ 22].
● Disable the fan (P52)
The following applications are available:
Application for chilled/heated ceiling,
radiator
Set basic
application
Section
Sequences
Chilled/heated ceiling with changeover
2-pipe
2-pipe fan coil unit [➙ 32]
H ( \ )
C ( / )
Chilled/heated ceiling and electric heater
(cooling only: disable electric heater via
P13)
(RDF660MB only)
2-pipe with
electric heater
2-pipe fan coil unit with electric
heater (RDF660MB only) [➙ 33]
El H + H (↯\
\ )
El H + C ( ↯\
/ )
C ( / )
Chilled ceiling and radiator
4-pipe
4-pipe fan coil unit [➙ 35]
H + C ( \ / )
4.6.6 Compressor applications
For compressor applications,
● Set the corresponding basic application
● Disable the fan (P52) or set the type of fan speed (P53)
The following applications are available:
Application for compressor
Set basic
application
Section
Sequences
1-stage compressor for heating or cooling
2-pipe
2-pipe fan coil unit [➙ 32]
H ( \ )
C ( / )
1-stage compressor and electric heater
(for cooling only: disable electric heater via
P13)
(RDF660MB only)
2-pipe with
electric heater
2-pipe fan coil unit with
electric heater (RDF660MB
only) [➙ 33]
El. H + H ( ↯\ \
)
El. H + C ( ↯\
/)
C ( / )
1-stage compressor
for heating and cooling
4-pipe
4-pipe fan coil unit [➙ 35]
H + C ( \ / )
Minimum On/Off time:
Fan operation:
Fan speed:
P48/P49
P52 (0 = disabled, 1 = enabled)
P53 (3 = DC 0...10 V (ECM fan))
Note