I will be installing a new Airtemp heat pump and it is supplied with a restrictor orfice at the service valve on the outdoor unit. But my indoor coil I MATCHED IT WITH HAS A TXV.? Do I need both or should I remove the orfice from the liquid line ? Why would I need both types of metering devices ?The install instructions does not address this issue. They give you the tables on how to charge the unit with one or the other.? This is an R-410 unit.

Thanks for any help.