Return and replace Server Room Evaporator Coil M#FTKN12NMVJU S#G002192-Under warranty until August 2021 Recover refrigerant Remove and replace defective evaporator Pressurize with nitrogen Evacuate and charge with refrigerant (up to 5lbs) Check unit for proper operations SP- 148 SLT- 60 VSAT- 52 SH- 7 Return air temp- 78 Supply air temp- 57 Temperature Difference- 21