Belimo CR24 Series, Product Information

Page: 21 / 32

Functions
CR24-..
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Pr
oduct information S4-CR24-.. • en • v2.3 • 08.2022 • Subject t
o changes
Y [V]
t
R
[°C]
W
A
10
0
1 2 7
~
+
ao2 U5
1
12
di3
AC 24 V
CR24-B3
1 2 5
U5
11
3
Y
~
+
1 2 6 7
4
~
+
ao1 U5
1
di2
AC 24 V
CR24-B1
1 2 3 5
Y U5
~ +
Y [V]
t
R
[°C]
W
A
10
2
0
In change-over applications, the digital input di2 controls the VAV
system output ao1 of the CR24-B1 controller.
Typical applications
Change-over heating or heating/cooling.
Note
The CR24-B3 controller is suitable for applications that require both a
stand-by function and a change-over function.
In change-over applications, the digital input di3 controls the common
heating/cooling output ao2 of the CR24-B3 controller.
Typical applications
Change-over heating or heating/cooling.
Note
– For chilled ceiling applications, refer to page 23.
– The CR24-B1 controller is suitable for applications that only require
a change-over function.
Cooling
Heating
Change-over
Belimo actuator
Heating Cooling
Change-over ao1 Digital input di2 CR24-B1 only
Change-over ao2 Digital input di3 CR24-B3 only
Configuration
The change-over function is configured using DIP
switches 3 and 4.
1 2 3 4 5 6
Configuration
The change-over function is configured using DIP
switch 2
1 2
Cooling
Heating
Change-over
Heating Cooling
Belimo actuator
Fixed heating mode
Change-over
Change-over
Key
Y
Output signal
t
R
Room temperature
W
A
Current setpoint
Key
Y
Output signal
t
R
Room temperature
W
A
Current setpoint