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Re: Prius Hybrid PTCs, what is PS HTR?
Posted to HVAC Forum on 2/4/2015

The auxiliary heater in the Gen 3 and C both have four heating elements within the quick heater assembly.

On the Gen 3, from the Integration Relay, there are three separate circuits, PCT1, PCT2, and PCT3, which connect to the quick heater assembly through co... Login to read more.