Yes. They are.
Big.
Liquid refrigerant charging of a system is normally accomplished in the liquid line. For example, when a system is out of refrigerant, liquid refrigerant can be charged into the king valve on the liquid line or receiver.
The suction line is the big one. This line should be cold when the unit is on. The small line is the liquid line.
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 big line is the suction for the the compressor in the A/C unit, The small line is the compressor discharge that goes to the furnace
It is fitted on discharge line after condenser, where the gas enters in liquid forms.
The liquid line receiver is a vessel used in refrigeration systems to store and separate liquid refrigerant from the rest of the system. It helps ensure that only liquid refrigerant enters the expansion valve, thus improving system efficiency. When the system is running, liquid refrigerant flows into the receiver and is stored until needed by the evaporator.
reticulated system pipe line colour code
The liquid line of an AC unit should feel warm to the touch. If it feels hot, it may indicate an issue with the system such as a restriction in the line or an overcharged system. If it feels cold, it may suggest a lack of refrigerant or a problem with the compressor.
Filter drier is used in an A/C system to take moisture out of the system. It is installed on the liquid line.
The central line is the middle line on which the shape is reflected on
A liquid line drier used in heat pumps is typically a filter drier that contains desiccants to remove moisture and contaminants from the refrigerant flowing through the system. It helps protect the system components from damage and improves the efficiency of the heat pump by ensuring proper refrigerant flow.