Trane Evaporator Coils Features Trane Horizontal Coil 1 1/2 – 5 Tons Cased Horizontal Flat Coil. Bi-directional air flow. Sloped non-corrosive drain pan. HP TXV with mechanical fittings. Galvanized steel cabinet. 100% foil lined insulation. Trane Upflow / Horizontal Coil 1 1/2 – 5 Tons All Aluminium coil to reduce formicary corrision. All Non-Bleed TXV valueswith internal check valve for heat pump operation. Split inner and outer doorsfor easy coil cleaning Double sloped non-corrosive drain pains. For Immediate Service Call (713) 666-9100 or touch the icon on your smartphone.