Upflow, Downflow, or Horizontal coils shall be designed for cooling and heat pump applications. The coil shall be 3/8" seamless aluminum tubing mechanically bonded to aluminum plate fin. Refrigerant for the A4MX coils shall be controlled with factory installed piston or Non-Bleed TXV refrigerant control. Refrigerant connections are brazed fittings. The coil cabinet shall have a removable front and interior access panel for evaporator coil entering air surface cleaning. The coil includes a vertical drain pan with primary and secondary drain connections for vertical operation and a horizontal drain pan with primary and secondary drain connections for horizontal operation.