KTRRUu257.456#27/V2
Room thermostat with timer, heating/cooling, flush-mounted, 24V AC/V DC, cover 50x50mm, traffic/studio white, gloss
Flush-mounted controller for time-dependent heating/cooling control of 2- and 4-pipe systems in hotel, residential and business premises. Can be adapted to almost all flat switch programs thanks to various variants. Up to 5 valve actuators (currentless open or closed) can be controlled per output. in 2-pipe operation, the operating mode can be switched over via an external contact (change-over), temperature sensor or menu. The clock can be used as a master for other controllers for ECO switching. The energy saving function (ECO) or frost protection (STANDBY) can be activated by an external contact. Alternatively, the inputs of the controller can be configured for an external temperature sensor (weighting between internal and external sensor can be set) or a dew point sensor (TPS). A fan (EC fan) can be speed-controlled via a 0 … 10 V interface.
Art.-Nr.: UA220105
Technical data
| Actual temperature display | Yes |
| Adaptive heating time start | Yes |
| Ambient temperature, lower value | 0 °C |
| Ambient temperature, upper value | 40 °C |
| Bearing temperature, lower value | -20 °C |
| Bearing temperature, upper value | 70 °C |
| Clock type | Day/week |
| Clock version | Digital |
| Colour | Traffic / studio white |
| Control behaviour | 2-point or PI-PWM |
| Control range, lower value | 5 °C |
| Control range, upper value | 40 °C |
| Cooling control function | Yes |
| Degree of contamination | 2 |
| Depth | 46 mm |
| Design | Berlin UP |
| Display | Yes |
| Display type | Illuminated, graphic display |
| ECO function (reduction) | Yes |
| ECO input (reduction) | 24 V AC / 50 Hz, 24 V DC |
| ECO output (reduction) | 24 V AC / 50 Hz, 24 V DC |
| Electric connection | Screwed plug-in terminals |
| Energy efficiency class | I or IV |
| External setting | Yes |
| Heating control function | Yes |
| Height | 71 mm |
| Housing material | Plastic ABS, PC, PMMA |
| Maximum air humidity (non-condensing) | 95 % r.H |
| Maximum power consumption | Approx. 1 W (2.2 VA) |
| Maximum switching current | 3 (0,5) A |
| Maximum switching voltage | 24 V AC / 50 Hz, 24 V DC |
| Medium | Air, not aggressive |
| Minimum switching voltage | 24 V AC / 50 Hz, 24 V DC |
| Mounting / attachment | Flush mounting (deep socket recommended) |
| Neutral zone | Adjustable |
| Number of control ranges | 1 |
| Number of outputs | 3 |
| Number of outputs, cooling | 1 |
| Number of outputs, heating | 1 |
| Number of switching programs | 7 |
| Operating voltage | 24 V AC / 50 Hz, 24 V DC |
| Operation | Touch-sensitive buttons |
| Output signal | Switching 24 V AC/V DC, 0-10 V |
| Party function | Yes |
| Potential free switching contact | No |
| Power reserve | Approx. 3 days |
| Protection class | III |
| RAL colour number (similar) | 9016 |
| Rated impulse voltage | 500 V |
| Safety and EMC | In accordance with DIN EN 60730 |
| Sensor element | NTC internal, optional NTC external |
| Sensor external | No |
| Shortest switching time | 15 min |
| Surface properties | Gloss |
| Switching contact | 2 normally open contacts |
| Switching difference | Room control < 1K, underfl. control < 2K |
| Switching difference, can be adjusted | No |
| Switching element | Relay |
| Temperature controller version | Climate controller |
| Type of protection | IP30 |
| Width | 71 mm |
| With explosion protection | No |
| Circuit diagram | |
| Photo | Type | Articlenumber | Features | Kind |
|---|---|---|---|---|
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 | AF-2 | G9040380 | External temperature sensor, NTC47K | Accessories |
 | PFC 47/6m | G9130180 | Radiation temperature sensor, pendulum, NTC47K, 6m | Accessories |
 | BTF2-C47-0000 | SA140014 | Room temperature sensor, NTC47K, surface-mounted super flat | Accessories |
 | TPS 1 | G8000299 | Dew point sensor for cooling ceilings/mats, 10m cable | Accessories |
 | TPS 3 | SN120000 | dew point sensor for piping, 10m cable | Accessories |
| TPS 2 | G8000300 | Dew point sensor for cooling ceilings/tube, 10m cable | Accessories |
 | FUFC 47-0000 | SN090198 | Room temperature sensor, NTC47K, flush-mounted, cover 50x50mm, pure white gloss | Accessories |
 | ALF-2 | G9050160 | Contact temperature sensor, NTC47K | Accessories |
 | KF-2 | G9031446 | Cable temperature sensor, NTC47K, 1.5m, PE sensor cable, -35...+100...°C | Accessories |
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