HOW IT WORKS
The air-source heat pump operates as it normally would when in heating mode sending fresh, clean air into the building.
As conditions near frosting levels, FrostShield detects outdoor coil temperature levels and determines the precise amount of hot discharge gas needed to prevent frost from forming.
FrostShield maintains the coil temperature above the threshold where moisture condenses and frost forms. This prevents the unit from switching to cooling mode, saving energy.