Maneurop condesing unit Optyma Integral series R448A/R449A/R134A/R407A/R407F/R407C/R404A/R507 are the main refrigerants for MBP commercial refrigeration. Optyma? condensing units can work from -30?C up to +10?C (from -22F up to +50F) evaporating temperature. Optyma? for medium-temperature applications is widely used in cold rooms to chill, display windows, island cabinets, milk cooling tanks and process cooling. Capacity: 2) Optimised for R404A at 32?C ambient. Models with prefix MCRN are single condenser fan, models with prefix MGRN ate twin condenser.