we are currenty replacing an old larken condensing unit with a blv2000... dont quote me on that model number i dont have the exact number at home. for superheat bohn/heatcraft recommend 30-40 degrees at the compressor while copeland wants nothing lower than 20 degrees according to bohn/heatcraft.
what is coplands recomended superheat at the compressor for a discis compressor running r-22 +25 degree evap temp. they also dont mention what subcooling is spec. this unit has the dual low ambient valves and a subcooler coil next the condenser coil. the manual says 90% of reciever capacity should be proper charge but i cant find the reciever capacity written on the unit anywhere and the the reciever is heated and insulated so i cant see any tags