A frost protection sensor detects if incoming air temperature drops to around 5°C and triggers electric heating to warm the air; this prevents pipes within coils from freezing and bursting, which would leak fluid into the air stream.
factualpending
Evidence Quote
“We've got a frost sensor here, so this is a temperature sensor, and that's detecting if the Air coming in is Probably around [five] degrees Celsius... if it temperature gets to that point it will kick this on this is an electrical one So it's just going to add Heat... if it got too cold, and it hit the pipes and that could Cause your the the pipes within the coils to burst”
Created: 8/13/2026, 4:57:53 AM
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