first page

ROOM TEMPERATURE CONTROLLERS

RTB ...

 click on picture to enlarge

 Path - First page - Products - Thermostats and ambient controllers - RTB

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.

RTB 040 can be used as a time switch for 24-hour or 7-day programming.

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

Optional detectors:

  • 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 ... 40 °C: 0...40 °C.

    • From local setpoint adjuster: ± 5 (± 15) °C.

  • On-Off output:

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

    • P control action; Proportional Band: ± 1 °C (adjustable from central unit).

  • Modulating outputs:

    • Triac type 24 V ~, rating 300 mA (7 W).

    • PI control action; Proportional Band: ± 1 °C (adjustable from central unit).

    • Control of actuators with run time: 100 seconds (adjustable from central unit).

Code   Control outputs

Setpoint adjuster

 Data sheet
RTB 040   1 On-Off hot or cold (fan or 2-3 wire valve). – B 520
RTB 140   1 On-Off hot or cold (fan or 2-3 wire valve). ± 15 °C
RTB 044    4 On-Off hot or cold (3 fan speeds plus 2-3 wire valve). – B 521
RTB 044 S1   As RTB 044 with room occupied service (without detector control). –
RTB 144    4 On-Off hot or cold (3 fan speeds plus 2-3 wire valve). ± 15 °C
RTB 144 S1   As RTB 144 with room occupied service (without detector control). ± 15 °C
RTB 041   1 modulating hot or cold (3-wire valve) + 1 On-Off (fan). – B 520
RTB 141   1 modulating hot or cold (3-wire valve) + 1 On-Off (fan). ± 15 °C
RTB 042   2 modulating hot and cold (2 3-wire valve). –
RTB 142   2 modulating hot and cold (2 3-wire valve). ± 15 °C
RTB 045   4 simultaneous On-Off hot or cold (4 2-wire valves). –
RTB 145   4 simultaneous On-Off hot or cold (4 2-wire valves). ± 15 °C

DETECTORS & ACCESSORIES

Code   Description Setting range

Sensing element

 Data sheet
SAB 010   Room temperature detector. 0 ... 40 °C NTC 10 kΩ N 111
SAB 210   Room temperature detector with +1 hour key. 0 ... 40 °C NTC 10 kΩ
SCB 110   Room temperature detector with setpoint adjuster. 0 ... 40 °C NTC 10 kΩ
SCB 210   Room temperature detector with +1 hour key and setpoint adjuster. 0 ... 40 °C NTC 10 kΩ
STT 010   Temperature detector for fan coils. 0 ... 40 °C NTC 10 kΩ N 155
STA 010   Air duct temperature detector. 0 ... 40 °C NTC 10 kΩ N 150
AIC 240   Inverts status of window switch. – – –