Yes, turning on an air conditioner can make your house colder faster compared to leaving it off. Air conditioners are designed to remove heat from indoor spaces and lower the temperature. When you turn on an air conditioner, it activates the compressor, which circulates refrigerant through a closed system.
The refrigerant absorbs heat from the indoor air as it passes over the evaporator coil, causing the air to cool down. At the same time, the warm refrigerant is compressed by the compressor, which raises its temperature. The heated refrigerant then releases the absorbed heat to the outside air through the condenser coil.
By continually cycling and repeating this process, an air conditioner removes heat from the indoor environment, making it cooler. When you turn on the air conditioner, it accelerates this cooling process, expelling the heat more rapidly and reducing the indoor temperature at a faster rate.
Leaving the air conditioner off means that there is no active cooling happening, and the temperature in the house will be determined by factors such as outdoor temperature, insulation, and heat sources inside the house. Without the air conditioner, it will take longer for the indoor temperature to decrease.
It's worth noting that the size and efficiency of the air conditioner, the initial temperature difference, and the thermal characteristics of the house will all influence how quickly the indoor temperature drops when the air conditioner is turned on.