Thermostatic Air Cleaner: Description and Operation

THERMAC Air Cleaner:

SYSTEM DESCRIPTION
The THERMAC system regulates incoming air temperature without the use of vacuum. The air regulating damper is controlled by means of a self-contained, wax pellet actuated assembly mounted in the air cleaner. When incoming air is cold, the wax material sealed in the actuator is in a solid state and the damper closes off the cold air inlet. This causes all incoming air to be heated by the exhaust manifold. As the incoming air warms, the wax material expands by changing to a liquid state which forces out a piston to reposition the damper allowing a old and hot air mix or all cold air to enter the engine.