Belimo CR24 Series, Информация о продукте

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Single room controller with one analog output
CR24-B1
6 www.belimo.com
Pr
oduct information S4-CR24-.. • en • v2.3 • 08.2022 • Subject t
o changes
Electrical installation
Wiring diagram
1 2 6 7 8
• • •
0...10
V
AC 24 V
NTC
CR24-B1
ai/di1 di2 ai2
ao1 U5
1
U5
2
T
~
–
Configuration / Principal diagramm
Y [V]
t
R
[°C]
10
2
0
W
C
V
max
.
V
min
.
Y [V]
t
R
[°C]
W
H
10
2
0
W
C
V
max
.
V
min
.
Configuration
DIP
Default
settings
1 P-band normal P-band wide
2 Input di2
Stand-by
Input di2
Change-over
1 2
Product features
Energy hold off
In energy saving mode, the room temperature is reduced to building protection level, i.e. either the
heating setpoint is significantly reduced or the cooling setpoint is significantly increased, for in -
stance in a room with an open window.
Stand-by
The room temperature is reduced to stand-by level, i.e. either the heating setpoint is slightly redu -
ced or the cooling setpoint is slightly increased, for instance in a room that is temporarily unoccu-
pied.
Frost
The frost protection function is activated if the actual room temperature falls below 10°C.
Change-over
Change-over heating or heating/cooling.
External temperature sensor
An external temperature sensor can be connected to the analog input ai1, for instance in order to
measure the average room temperature in the exhaust air duct.
External setpoint shift
An external DC 0...10 V signal at the analog input ai2 can be used to shift the basic setpoint 0...10
K, for instance for the summer/winter compensation.
These functions are described in detail on pages 17 to 24.
Inputs Outputs
3
ai1 External temperature sensor 6 ao1 System output for Belimo VAV controller
di1 Energy hold off Other connections
4 di2 Stand-by / Change-over 7 PP1 Diagnostics socket 1
5 ai2 External setpoint shift 8 PP2 Diagnostics socket 2
Notes
• Connect via safety isolation transformer.
• Parallel connection of other actuators possible.
Note the performance data.
!
Key
Y [V]
Output voltage in volt V'
max
Maximum volume flow
t
R
[°C] Room temperature in degrees centigrade V‘
min
Minimum volume flow
W
H
Heating setpoint
W
C
Cooling setpoint