Final answer:
In cooling mode, the low pressure refrigerant vapor travels to the compressor, which is essential for advancing the cooling cycle by increasing the refrigerant's temperature and pressure.
Step-by-step explanation:
When in the cooling mode, the low pressure refrigerant vapor leaves the reversing valve and travels to the compressor. This is the component in a heat pump or air conditioning system that increases the temperature and pressure of the refrigerant gas. The compressor is crucial for the refrigeration cycle as it moves the refrigerant through the system, allowing it to absorb heat from the indoor space and release it outdoors.
Following the compressor, the refrigerant moves to the condenser where it condenses into a liquid. After this, it passes through the expansion valve and goes back to the evaporator coils to continue the cycle.