Deolloz wrote:GerryAZ wrote:bitmanEV wrote:during the summer is have the switch on OFF to be sure that's OFF
To keep the heater from running, you want the lowest resistance resistor switched in parallel with the temperature sensor so that would either be position 1 or 2 (not off). The OFF position is for normal heater operation.
Assuming I get the heater control switch kit installed soon ( it already arrived in the mail):
Before installing, do I need to pre-set the HVAC to a specific setting?
After the install, considering its hot here in Austin right now (~100), I will keep the AC on 60 degrees and lowest fan setting once cooled, then what setting do I put the switch at, 0, 1, or 2? Will that change in the winter months?
You want to use Position 1 (330 ohm resistor) to keep heating elements from being energized inadvertently while using A/C. Position 2 (2.2 kohm resistor) would allow the heating elements to be energized, but keep the fluid temperature lower than normal. The OFF position allows the heating elements to heat the fluid normally and will reduce range under certain ambient temperature conditions. Therefore, I recommend Position 1 to avoid inadvertent heating element use unless you need heat. Choose Position 2 or OFF depending upon cabin heat/defrost needs. Use OFF to get maximum heating.