There are many "thermowax" devices on the engine...
There is the front eccentric thermowax pellet which allows oil to flow through the eccentric shaft (and rotors).
There's the thermowax on the throttle body which controls the cold-start fast idle.
There's the thermowax pellet in the oil cooler which allows oil to bypass the oil cooler core.
When talking about COOLANT, there's only one thermowax on the throttle body.
-Ted
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