Belimo CRK24-B1 - room temperature controller

Belimo CRK24-B1 room temperature controller

The controller is designed to control the temperature in a single room in heating and cooling ceiling systems. Its ao1 output is used to control a 6-way valve.

Key features

• Rated supply voltage AC 24 V 50/60 Hz; supply voltage range AC 19.2 … 28.8 V.
• One ao1 analogue output for a 6-way valve: (0) 2 … 10 V, max. 5 mA; output can be configured as modulating or On/Off.
• P control characteristic; selectable P band for heating / cooling: 2.0 K / 1.0 K or 4.0 K / 2.0 K.
• Temperature setpoint range 15 … 36°C (default 21°C), knob adjustment ±3 K.
• AUTO / ECO / MAXIMUM mode selector and LED status indication.
• Pre-comfort, Energy hold off (EHO), frost protection at 10°C, and compatibility with an optional dew point limiter.
• Option to connect an external NTC 5 kΩ temperature sensor to ai1 and shift the setpoint with a DC 0 ... 10 V signal at input ai2.
• PP diagnostic connectors for use with PC-Tool and ZTH EU; internal function test and control sequence simulation.
• IP30 protection rating (EN 60529); dimensions (H × W × D) 99 x 84 x 32 mm.