What describes the start of the split system air conditioner's sequence of operation?

What describes the start of the split system air conditioner's sequence of operation?

• A. Room temperature falls below setpoint, compressor and fan controls are energized
• B. Room temperature rises above setpoint, compressor and fan controls are energized
• C. Room temperature rises above setpoint, only the indoor fan control is energized
• D. Room temperature falls below setpoint, only the compressor control is energized

Answer: (B)

The start of a split system air conditioner's sequence of operation is characterized by activating the cooling cycle when the room temperature rises above the desired setpoint. In this situation, the thermostat senses that the room temperature is higher than the setpoint, which signals the need for cooling. As a result, both the compressor and the indoor fan controls are energized to begin the process of returning the indoor environment to a comfortable temperature. When the compressor is activated, it circulates refrigerant through the system, absorbing heat from indoors and dissipating it outside. The indoor fan also starts running to help distribute the cooled air throughout the space. This coordinated operation ensures effective cooling and helps maintain the setpoint temperature.

The start of a split system air conditioner's sequence of operation is characterized by activating the cooling cycle when the room temperature rises above the desired setpoint. In this situation, the thermostat senses that the room temperature is higher than the setpoint, which signals the need for cooling. As a result, both the compressor and the indoor fan controls are energized to begin the process of returning the indoor environment to a comfortable temperature.

When the compressor is activated, it circulates refrigerant through the system, absorbing heat from indoors and dissipating it outside. The indoor fan also starts running to help distribute the cooled air throughout the space. This coordinated operation ensures effective cooling and helps maintain the setpoint temperature.