Where must a suction line drier be placed in a heat pump t?

In a heat pump system, the suction line drier should be placed on the suction line, typically between the evaporator and the compressor. This positioning helps to remove moisture and contaminants from the refrigerant before it enters the compressor, ensuring optimal performance and preventing damage. It's crucial to install the drier in a location that allows for easy access for maintenance and replacement.