An heating, ventilating, and air conditioning (HVAC) system comprising: at least two closed refrigerant circuits ; a multistage microchannel condenser having a front face with an exchange area and having at least two pluralities of flat tubes interspersed in the exchange area, wherein the at least two closed refrigerant circuits are fluidly coupled to the multistage microchannel condenser ; a first first-end manifold having a long dimension at a right angle to a long dimension of the at least two pluralities of flat tubes and wherein the first first-end manifold is disposed proximate a first end 308 of the multistage microchannel condenser ; a second first-end manifold having a long dimension at a right angle to a long dimension of the at least two pluralities of flat tubes and wherein the second first-end manifold is disposed proximate the first end of the multistage microchannel condenser ; a first second-end manifold having a long dimension at a right angle to the long dimension of the at least two pluralities of flat tubes and wherein the first second-end manifold is disposed proximate a second end of the multistage microchannel condenser ; a second second-end manifold having a long dimension at a right angle to the long dimension of the at least two pluralities of flat tubes and wherein the second second-end manifold is disposed proximate a second end of the multistage microchannel condenser ; wherein the first end of the first plurality of flat tubes is fluidly coupled to the first first-end manifold and the second end of the first plurality of flat tubes is fluidly coupled to the first second-end manifold ; and wherein the first end of the second plurality of flat tubes is fluidly coupled to the second first-end manifold and the second end of the second plurality of flat tubes is fluidly coupled to the second second-end manifold . at least two closed refrigerant circuits ; a multistage microchannel condenser having a front face with an exchange area and having at least two pluralities of flat tubes interspersed in the exchange area, wherein the at least two closed refrigerant circuits are fluidly coupled to the multistage microchannel condenser ; a first first-end manifold having a long dimension at a right angle to a long dimension of the at least two pluralities of flat tubes and wherein the first first-end manifold is disposed proximate a first end 308 of the multistage microchannel condenser ; a second first-end manifold having a long dimension at a right angle to a long dimension of the at least two pluralities of flat tubes and wherein the second first-end manifold is disposed proximate the first end of the multistage microchannel condenser ; a first second-end manifold having a long dimension at a right angle to the long dimension of the at least two pluralities of flat tubes and wherein the first second-end manifold is disposed proximate a second end of the multistage microchannel condenser ; a second second-end manifold having a long dimension at a right angle to the long dimension of the at least two pluralities of flat tubes and wherein the second second-end manifold is disposed proximate a second end of the multistage microchannel condenser ; wherein the first end of the first plurality of flat tubes is fluidly coupled to the first first-end manifold and the second end of the first plurality of flat tubes is fluidly coupled to the first second-end manifold ; and wherein the first end of the second plurality of flat tubes is fluidly coupled to the second first-end manifold and the second end of the second plurality of flat tubes is fluidly coupled to the second second-end manifold . <EOS>