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(incl. VAV and room temperature controllers)

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Room temperature controllers for ventilation of apartments
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and pressure control
VAV control system for controlled apartment ventilation

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System solutions for controlled ventilation of apartments and building floors

CRA24-.. Room controller for controlled apartment ventilation
Power supply  
AC 24 V / 50/60 Hz         
Air volume or room temperature control in the comfort zone          
Setpoint (adjustment range 30 … 70% air / 15 … 36°C temperature)          
3-step switch (Vmin / Vmid / Vmax)           
Setpoint (adjustment range 30 … 70% air)           
Mode selection switch: COMF – MIN – MAX         
Mode indication LEDs: COMF – MIN – MAX         
Setpoint adjustment: Rotary knob 30 … 70% air / ±3 K temperature           
Setpoint adjustment: Rotary knob covered: 30 … 70% air / ±3 K temperature           
Setpoint adjustment: Rotary knob covered: 30 … 70% air           
4 inputs  
Kitchen override function          
Bathroom override function          
Energy hold-off (EHO)          
External temperature sensor (Type NTC 5 kΩ, sensing range 10 … 45°C)          
3 outputs  
2 … 10 V system output for supply air: Belimo VAV controller, damper actuator          
2 … 10 V system output for exhaust air: Belimo VAV controller, damper actuator          
Heating output: 2-point (thermal actuator) / 3-point          
2 … 10 V system output for supply / exhaust air: Belimo VAV controller, damper actuator           
Control characteristic: P          
P-band, switchable          
Switchable control strategy ( air volume / room temperature)          
Switchable air sequence (cooling / heating)          
Room temperature monitoring (min and max)          
Internal function test, including nominal voltage test          
Commissioning mode with output and sequence simulation          
Tool connection (ZTH EU, PC-Tool) for VAV controller diagnostics          
Operating mode switch (reduced, nominal, intensive ventilation)           

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