The serpentine belt connecting the generator does in fact run to the crankshaft pulley. The only difference between the eTorque and regular hemi is that the eTorque has a separate water pump belt shown below, and the eTorque has the option of (listed in the service manual) a mechanical tensioner (like the non-eTorque) or a hydraulic tensioner.
View attachment 1287
What's interesting is that the parts diagram I have does in fact list separate part #s for the eTorque compressor:
View attachment 1288
But there is no mention of anything different about the systems (other than water pump belt) in the service manual.
What is the AC heater? The AC system works by taking high pressure, low temperature liquid refrigerant and passing it through a small opening called an expansion valve. If the compressor clutch disengages, there's no way to maintain the high pressure needed to drive the system.
@SpeedyV the only explanation I can come up with is that when you stopped, the AC demands were light enough to shut off the engine. There might not have been a noticeable change in the cabin because the blower motor speed - wind noise - will stay the same. Given that it wasn't balls hot yet outside, the air being recirculated through the blower motor (assuming you had it on that setting) was cool enough to not notice the decreased cooling performance across the evaporator.
Based off what I can see there is simply no way for the compressor to continue running with the engine off.
ETA:
Here's a timestamp in that video:
Two quotes of interest:
"and climate control airflow may be reduced" & a few seconds later "the vehicle may also start automatically to maintain cabin comfort"
I'm more confident that the eTorque system operates in the same manner as other stop/start functions on the market today in regards to HVAC. If the AC demands are high enough (actual temperature vs. desired, humidity etc.) the computer will not shut off the engine in order to try to maintain the desired climate settings.