ROOM TEMPERATURE CONTROLLERS RTB 540
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APPLICATION

Room temperature controllers for heating/cooling coils or for zone heating,supplied with an NTC 10 kΩ internal sensing element. Designed for On-Off control of fans and zone valves or for modulating control of reversible control valves with 3-wire electric control.

Individual or centralised season switching.

• compatible.

L' RTB 540 is provided with a display for modifying programme in use and desired temperature.

Oprional accessories:

• 1 room temperature detector for fan coils or air duct.

FEATURES

• Power supply: 24 V ~.

• Consumption: 4 VA.

• Protection: IP 30.

• Setting range: 

  • From central unit: 0 ... 30 °C.

• On-Off output:

  • Voltage free contact: rating 250 V ~, 5 (3) A.

• PI control action.

• Proportional band:

  • (adjustable from central unit).

DETECTORS & ACCESSORIES