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| Power supply |
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AC 24 V / 50/60 Hz |
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| Application |
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Air volume or room temperature control in the comfort zone |
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Internal temperature sensor (Type NTC, sensing range 10 … 45°C) |
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Setpoint (adjustment range 30 … 70% air / 15 … 36°C temperature) |
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| Operation |
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Mode selection switch: COMF – MIN – MAX |
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Mode indication LEDs: COMF – MIN – MAX |
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Setpoint adjustment: Rotary knob (CRA24-B3P covered): 30 … 70% air / ±3 K temperature |
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| 4 inputs |
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Kitchen override function |
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Bathroom override function |
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Energy hold-off (EHO) |
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External temperature sensor (Type NTC 5 kΩ, sensing range 10 … 45°C) |
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| 3 outputs |
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2 … 10 V system output for supply air: Belimo VAV controller, damper actuator |
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2 … 10 V system output for exhaust air: Belimo VAV controller, damper actuator |
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Heating output: 2-point (thermal actuator) / 3-point |
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| Functions |
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Control characteristic: P |
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P-band, switchable |
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Switchable control strategy ( air volume / room temperature) |
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Switchable air sequence (cooling / heating) |
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Room temperature monitoring (min and max) |
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Internal function test, including nominal voltage test |
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Commissioning mode with output and sequence simulation |
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Tool connection (ZTH-GEN, PC-Tool) for VAV controller diagnostics |
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| Mounting |
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Surface mounting with flush-mounted or surface-mounted connection |
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| Additional documentation |
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Comprehensive and regularly updated documentation with descriptions of specific applications is available for the CRA24-3(P) controller. |
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