6 / 20
S4-CRK24-B1 • en • v1.2 • 06.2016 • subject to changes
www.belimo.eu
CRK24-B1
Technical data sheet
Product features
Energy hold off
(EHO)
In energy saving mode, the room temperature is regulated to the building protection level, i.e.
the heating setpoint is significantly reduced or the cooling setpoint is significantly increased, for
instance in a room with an open window.
Pre-comfort
The room temperature is reduced to stand-by level, i.e. the heating setpoint is slightly reduced
and/or the cooling setpoint is slightly increased, for instance in a room that is temporarily
unoccupied.
Frost
If the current room temperature falls below 10°C, then the frost function will be activated.
Dew point limitation
If the optional connectable dew point limiter responds, then the valve is moved into neutral
position.
External temperature sensor
An external temperature sensor can be connected at analogue input ai1.
External setpoint shift
An external DC 0 ... 10 V signal at the analogue input ai2 can be used to shift the basic setpoint
by 0 ... 10 K, e.g. for summer/winter compensation.
The functions are described in detail on pages 9 to 13.
Electrical installation
Wiring diagram
U5
CRK24-B1
EHO
1
3
y
5
U
2
~
AC 24 V
0 … 10
V
1
2
7
8
6
ao1
1
U5
2
4
di2
3
5
ai1/di1
ai2
~
Notes
• Connect via safety isolation transformer.
• Parallel connection of other actuators possible.
Note the performance data.
!
Configuration
Configuration
ao1 modulating
ao1 On/Off
1
2
3
4
5
6
ON
OFF
l
[V]
ao1
10
7.3
4.7
2
0 10
33
66
90 100 [%]
l
[V]
ao1
10
6
2
0 10
33
66
90 100 [%]
Shifting
Pr
e-comf
or
t
Dew point limiter
Actuator for 6-way valve
External NTC
temperature sensor
DIP
Default settings
1 P-Band normal
P-Band wide
2 Output ao1 modulating Output ao1 On/Off
ao1
(heating)
ao1
(cooling)
ao1
(heating)
ao1
(cooling)
Inputs
Outputs
3
ai1 External temperature sensor
6
ao1 System output for 6-way valve
di1 Pre-comfort
Other connections
4
di2 Energy hold off / dew point
7
PP1 Diagnostic socket 1
5
ai2 External setpoint shift
Содержание CRK24-B1
Страница 4: ...4 20 S4 CRK24 B1 en v1 2 06 2016 subject to changes www belimo eu CRK24 B1...
Страница 8: ...8 20 S4 CRK24 B1 en v1 2 06 2016 subject to changes www belimo eu CRK24 B1...
Страница 14: ...14 20 S4 CRK24 B1 en v1 2 06 2016 subject to changes www belimo eu CRK24 B1...
Страница 18: ...18 20 S4 CRK24 B1 en v1 2 06 2016 subject to changes www belimo eu CRK24 B1...
Страница 19: ......