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(incl. VAV and room temperature controllers)

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VRP-M
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
CRA24-B3
CRA24-B3P
CRA24-B1P
Power supply  
AC 24 V / 50/60 Hz         
Application  
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)           
Operation  
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           
Functions  
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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