Thermostat Senses Temperature:

When the room temperature deviates from the set point on the thermostat or remote control, it signals the ductless split system to begin operation.

Refrigerant Cycle Begins:

In cooling mode, the outdoor unit's compressor pressurizes the refrigerant and pumps it toward the indoor unit. In heating mode (using a heat pump), the system reverses the refrigerant flow to extract heat from the outside air.

Refrigerant Cools or Heats the Air:

4Inside the indoor unit, the refrigerant passes through the evaporator coil. In cooling mode, the refrigerant absorbs heat from the indoor air, cooling the air.In heating mode, the refrigerant releases heat into the room.

Expansion Valve Regulates Refrigerant Flow:

Before entering the indoor evaporator coil, the refrigerant passes through the expansion valve, which reduces its pressure and temperature, allowing it to absorb heat effectively during the cooling process.

Refrigerant Returns to Outdoor Unit:

After absorbing the indoor heat, the refrigerant returns to the outdoor unit where the cycle repeats. In heating mode, the outdoor unit absorbs heat from the outside air, even at low temperatures, and pumps it back inside.

System Maintains Set Temperature:

Once the desired temperature is achieved, the thermostat signals the system to shut off, maintaining energy efficiency.If the temperature changes, the cycle restarts to maintain comfort.