This condenser requires the use of one or more branch boxes. There is a maximum piping to both branch boxes of 180.4 ft. The maximum length to any one indoor unit from a branch box is 49.2 ft. The maximum total line set length is 475.7 feet.
There are more restrictions to be aware of. Please see page three of the LMU540HV Submittal for more details about line set installation requirements.