Final answer:
The dividing points between the low-pressure and high-pressure sides of a heat pump system are the service valves, access valves, or process stubs, the refrigerant, and the compressor and metering device.
Step-by-step explanation:
The dividing points between the low-pressure and high-pressure sides of a heat pump system are the service valves, access valves, or process stubs. These valves are used to control the flow of refrigerant between the different components of the system.
The refrigerant is another important factor in separating the low-pressure and high-pressure sides. It is the substance that absorbs and releases heat as it goes through a phase change, allowing the heat pump system to transfer heat from one location to another.
Additionally, the compressor and the metering device also play a role in separating the low-pressure and high-pressure sides. The compressor increases the temperature and pressure of the refrigerant, while the metering device regulates the flow of refrigerant into the evaporator.
Finally, the recovery, evacuation, and charging connections are not directly related to dividing the low-pressure and high-pressure sides, but they are important for maintaining and servicing the heat pump system.