The frost protection thermostat TFR is used for downstream temperature monitoring of water air heaters in ventilation and air-conditioning systems to prevent frost damages. It has a small differential gap and a high reproducibility. The reset can be done manually.

Usage examples

• Stop fan
• Close outside air dampers
• Open heating coil valve 100%
• Star heating coil pump
• Switch-off chiller (condenser) and humidifier
• Trigger visual and/or audible frost alarm

Features

• switching point setting: -10 ... + 15 °C
• repeatability: ± 0.5 °C
• sensor length approx. 60cm
• capillary length 6m
• changeover contact max. 250VAC, max. 10A
• protection class IP 65