TFR
Frost protection thermostat for downstream temperature monitoring of e.g. heat exchangers in ventilation and air-conditioning systems. The product offer a small differential gap and a high reproducibility. Resetting can be done automatically or manually (type '-R'). The frost protection thermostat can be used to perform the following functions: stop fan, close outside air dampers, open heating valve 100%, start heating pump, switch-off chiller (condenser) and de-/humidifier, trigger visual and/or audible frost alarm.
| Measured values | temperature |
|---|---|
| Medium | air |
| Output switch contact | single pole change over, switching capacity max. 10 A (250 V ~) |
| Accuracy temperature | repeatability ±0,5 K |
| Setpoint range | -10..+15 °C (default +5 °C) |
| Switching values | switching differential: 2 °C ±1 °C |
| Enclosure | PA6, light grey, cover ABS, transparent |
| Protection (IP) | IP65 according to EN 60529 |
| Cable entry | M16 for wire max. Ø=8 mm |
| Electrical connection | terminal block, max. 2,5 mm² |
| Capillary pipe | copper with tube filling R507, length 1,8 | 3 | 6 | 12 m, sensor operating length approx. 600 mm |
| Ambient condition | -35..+70 °C, max. 85% rH short term condensation |
| Delivery content | Installation set TFR/MWF (6 pcs) |