When a heat pump failure occurs in the winter, the owner most likely will not be aware of the issue. The iO-HPA module notifies the homeowner or building owner if the heat pump has failed. The iO-HPA Heat Pump Alert is designed to detect air-to-air heat pump system failure by monitoring the "W" voltage signal from the thermostat and the temperature of the hot gas line. If there is a call for heat but the compressor fails to run after 12 minutes, a buzzer will sound. The module is equipped with an alarm switch to silence the buzzer.
Product Specifications:
Input Voltage: 20-30 VAC 50/60 Hz
Operating Temperature: 32°F to 150°F
Operating Relative Humidity: 0-95% (non-condensing)
Buzzer Rating: 95 dB
Warranty: 1 Year