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General Air Solutions
Water Solutions
Sensors
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Room & System Solutions
(incl. VAV and room temperature controllers)

Room comfort
Controllers for VAV / chilled ceiling systems, etc.
Room temperature controllers for ventilation of apartments
Heated / chilled ceiling controllers (6-way)

Volumetric flow
and pressure control
VAV-Compact, dynamic
VAV-Universal, dynamic
VAV-Universal, static
System solution
VRP-M
VAV control system for controlled apartment ventilation

Fan control
Fan Optimiser

Retrofit
VAV-Retrofit products
VAV-Retrofit documentation
Retrofit-Tool
Bus & System Integration
Retrofit
Products A to Z
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Single room control solutions for VAV / chilled ceiling systems, etc.
CR24-B.. room temperature controllers with operator panel
CR24-A.. room temperature controllers without operator panel

CR24-B.. room temperature controllers with operator panel
CR24-B1 CR24-B2 CR24-B2E CR24-B3
Supply
AC 24 V 50/60 Hz            
Application / Temperature range
Room temperature control in comfort area            
Setpoint (adjustment range 15...36°C)            
Operating (only CR24-B..)
Mode selection switch: AUTO – ECO – MAX            
Setpoint adjustment rotary button: ± 3 K            
Inputs (number)
Energy hold off            
Stand-by  1)          
Change-over  1)           2) 
Chilled ceilings with dew point monitoring and change-over              2) 
Ventilate               
Boost             2) 
External temperature sensor (CR24-B2E ZUL limitation)            
External setpoint change (0...10 V)            
Outputs (number)
2...10 V output for Belimo VAV controller or change-over  3)             
2...10 V output for Belimo VAV controller            
Heating output 3-point              
Electrical air heater 1...3 levels or radiator valve Open/Close               
Heating or cooling output, change-over 0...10 V              4) 
Functions
Control characteristics  P   P   P   P / PI 
Commissioning mode with simulation of output and sequence            
Tool connection (ZTH EU, PC-Tool) for VAV controller diagnostics            
Surface mounting with fl ush-mounted or surface-mounted connection            
Housing
colour cover RAL 9003 signal white            

CR24-A.. room temperature controllers without operator panel
CR24-A1 CR24-A2 CR24-A3
With same functionality as CR24-B.., but without operating surface         

1) The standby input is not available in change-over (C/O) mode or in heating controller applications as it is assigned to the C/O input function. CR24-B3 should be used if the stand-by function is needed in a C/O application.

2) The boost function is not available in change-over mode or in chilled ceiling applications with dew point monitoring. The combination change-over and dew point monitoring is possible.

3) The output can either be used as a common cooling and heating output in change-over mode or exclusively as a cooling or heating output. The stand-by function is not available in change-over mode or in heating controller applications.

4) The output can either be used as a common cooling and heating output in change-over mode or exclusively as a cooling or heating output.




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