Product Overview Manuals and Guides Product Overview Friedrich 80041971 VTAC Condenser Coil. Condenser Coil is for use with small chassis 12000 and 18000 BTU units across several series. RTL Units: VEA12K**RTL VHA12K**RTL VHA18K**RTL RTM Units: VHA18R25RTM VHA18R34RTM Product Manuals Load More