HTRRBu110.021
Underfloor temperature controller with timer, surface-mounted, remote sensor NTC2K, backlighting
Electronic floor temperature controller for time-dependent control of temperatures in closed rooms. Suitable for floor, edge zone, bathroom, ceiling, tiled stove, marble, wall heating, or temperature control systems up to 3000W. Can be used as a master (pilot controller) for lowering the temperature of other controllers. Controllers of the FETR, FTR, and RTBSB series are suitable as slaves (satellite controllers) for this purpose. Simple operation by means of direct selection keys. In case of sensor breakage or sensor short-circuit, the heating is activated with a duty cycle of 30% to prevent cooling or frost damage in the room. Temperatures below -20°C are also evaluated as the sensor break and the emergency function is triggered. The unit can also be mounted on a flush-mounted box by means of an adapter plate.
Art.-Nr.: MA600400
Technical data
| Actual temperature display | Yes |
| Adaptive heating time start | Yes |
| Ambient temperature, lower value | 0 °C |
| Ambient temperature, upper value | 30 °C |
| Bearing temperature, lower value | -20 °C |
| Bearing temperature, upper value | 70 °C |
| Clock type | Day/week |
| Clock version | Digital |
| Colour | Pure white |
| Control behaviour | 2-point |
| Control range, lower value | 10 °C |
| Control range, upper value | 42 °C |
| Depth | 26 mm |
| Design | Berlin 3000 |
| Display | Yes |
| Display type | LCD, illuminated |
| ECO output (reduction) | 230 V AC, 50 Hz |
| Electric connection | Screw terminals |
| Energy efficiency class | I |
| External setting | Yes |
| Heating control function | Yes |
| Height | 110,7 mm |
| Housing material | Plastic ABS |
| Maximum air humidity (non-condensing) | 95 % r.H |
| Maximum switching current | 13 (2) A, clock output 100 mA |
| Maximum switching voltage | 230 V AC, 50 Hz |
| Mechanical range reduction | Yes |
| Medium | Air, not aggressive |
| Minimum switching voltage | 230 V AC / 50 Hz |
| Mounting / attachment | Surface mounting |
| Number of control ranges | 1 |
| Number of outputs | 2 |
| Number of outputs, heating | 1 |
| Number of switching programs | 7 |
| Operating voltage | 230 V AC / 50 Hz |
| Operation | Rotary knob and buttons |
| Output signal | Switching (230 V AC, 50 Hz) |
| Party function | Yes |
| Potential free switching contact | No |
| Power reserve | 4 – 7 days |
| Protection class | II, following appropriate mounting |
| RAL colour number (similar) | 9010 |
| Safety and EMC | In accordance with DIN EN 60730 |
| Scale | Index number scale 1…4 |
| Sensor element | NTC external |
| Sensor external | Yes |
| Shortest switching time | 15 min |
| Surface properties | Matt |
| Switching contact | Normally open contact |
| Switching difference | Approx. 1 K (delta T max. 4 K/h) |
| Switching difference, can be adjusted | No |
| Switching element | Relay |
| Switching power | 3000 W, 23 W ECO output |
| Temperature controller version | Underfloor temperature controller |
| Type of protection | IP30 |
| Valve protection function | Yes |
| Width | 110 mm |
| With explosion protection | No |
| Circuit diagram | |
| Photo | Type | Articlenumber | Features | Kind |
|---|---|---|---|---|
 | HF-8/4-K2 | G8000370 | Sleeve temperature sensor, NTC2K, 4m, PVC sensor cable | Spare part |
| HF-8/6-K2 | G8000368 | Sleeve temperature sensor, NTC2K, 6m, PVC sensor cable | Spare part |
 | WP-01 | G9990180 | Heat transfer paste, 2ml, -40..+150...°C | Accessories |
 | JZ-17 | MN990001 | Adapter plate for Berlin 3000 housing (hardwired) | Accessories |
 | THF | C1809515 | Protective sleeve for screed installation of sleeves/cable sensor, copper, inner diameter 7.7mm | Accessories |
 | ZBOOA-010.185 | G8990010 | Valve actuator "Stella" 230V NC for the fully automatic hydraulic compensation | Accessories |
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