Most automotive A/C compressors are either on or off, with the engine ECU commanding an overriding โoffโ under hard acceleration or when fuel economy or other situations require an interruption in cooling.
Some older temperature dials actually mixed the cold A/C air with the hot air from the heater core to make those in-between temperatures.
Most automotive A/C compressors are either on or off
All AC compressors are either on or off. The compressed gas is gradually released by the TXV. The drop in pressure as the gas exits the TXV is what makes it cold.
Some older temperature dials actually mixed the cold A/C air with the hot air from the heater
Some older temperature dials actually mixed the cold A/C air with the hot air from the heater core to make those in-between temperatures.