filter dryer
A stove, dryer, water heater, furnace, heat pump.
There should be a pump down valve at the condenser. One for the suction and one for the liquid side. Simply front seat the valve on the liquid line and wait for the unit to pump down, then front seat the suction side and cut the pipe and replace. You may want to install a liquid line dryer before you evacuate the system and recharge the unit.
Usually by using a vacuum pump or a water aspirator, the boiling point of the liquid is reduced.
If you're talking about the copper refrigerant line then the answer is no.
Some units have a small looking glass in the line. you will be able to see the fluid running through it. if there are bubbles moving with the liquid most likely your fluid is low and there is a leak.
The refrigerant condenses inside coils from a vapor to a liquid. Then it releases heat to warm up the house.
Looking through the top by the fan . Look at your compressor if its a heat pumpbyou will have a accumalator which looks like an long can which your copper line runs to and you will also have a reversing valve which is attached in your line sets it will have three copper lines running to it and an electrical line to it also. A straight cool unit you will see nothing but a compressor. Also if your thermostate has a emergency heat most likely its a heat pump.
between the comp and the reversing valve
change to a smaller size line from the pump will increase the pressure the volume will stay constant.
This blue filter sounds like a filter/dryer and cannot be removed for cleaning by the homeowner. The larger copper tube is the low pressure side of the system, unless it is a heat pump. >>>>> As noted above the larger tube is the suction line. The filter is a refrigerant filter/dryer. If this is a heat pump the flow is bi directional (either way). The 2 access ports are for checking the pressure drop through it. The pressure drop will indicate if/when it is clogged and needs to be replaced. It is not servicable.
A coil of conductive metal to run the water through (copper) a pump, and a heat source.
A heat pump is somethign that heats water. It can be used to heat your water at home with your shower or you can have a heat pump to heat your pool at home or work