Finish Thompson BE-55C - Manual (Page 4)

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~ Part Descriptions and Terminology ~
Antifreeze - A cooling medium base composed of ethylene glycol or propylene glycol, corrosion
inhibitors and other additives, and dye.
Aspirator - An internally tapered, plastic tubular attachment to the Vacuum/circulation pump used to
create Vacuum.
Condenser - A shell and tube heat exchanger. The vapors pass through the tubes as cooling water
circulates through the shell to recondense the vapors into a purified liquid. Part of the Distillate Piping.
Coolant - A mixture of Antifreeze and water (usually a 50/50 ratio). Used for heat removal in engines.
Distillate Piping - The plumbing from the top of the Process Tank to the discharge hoses.
Divert Solenoid Valve - (Divert Valve) An electrically operated, 3-way mechanical valve used to
control Vacuum and allow the Processed Water and Recycled Glycol to drain into separate
containers. Part of the Distillate Piping.
Drain Valve - Where the Residue is drained from the Process Tank after the process is complete.
Inhibitor – Finish Thompson’s Premium Inhibitor restores critical corrosion protection agents to
Recycled Glycol allowing it to meet or exceed new antifreeze standards.
Level Control Boards – Electronic circuit boards used to control the automatic fill and automatic cycle
completion functions of the unit.
Level Control Probe - A device used to detect the presence of liquid in the Process Tank.
Processed Water - The distilled water product that is separated from the waste coolant.
Process Tank - The main 55-gallon vessel where the waste coolant is heated and vaporized.
Pump Reservoir - A five-gallon, square plastic tub that acts as a priming and coolant reservoir for the
Vacuum/circulation Pump.
Recycled Glycol - The distilled glycol product that is separated from the waste coolant.
Residue - The wastes from the used coolant that remain after processing.
TAS2 - Temperature Actuated Switch used as an overtemp sensor for the Process Tank. “Normally
Closed” until 385°.
TAS3 - Temperature Actuated Switch used to control the Divert Solenoid Valve. “Normally Open” until
280°.
TAS4 - Temperature Actuated Switch used as an overtemp sensor for the Distillate Piping. “Normally
Closed” until 180°.
Vacuum - Negative pressure used to reduce the boiling point of the Glycol for processing at a safer,
lower temperature.
Vacuum/circulation Pump – A centrifugal pump located in the pump reservoir. It is used to circulate
fluid through the unit’s cooling system and is connected to the Aspirator to create vacuum.
Waste Coolant - The dirty antifreeze/coolant before the recycling process.