... R22, R407c, R410a gas MHP A/C Unit is a series of self-contained, direct-expansion, seawater-cooled, reverse-cycle air ... conditioning designed for marine use. This series of MHP Unit utilize a rotary compressor, which offers quiet operation ... capacity will be more than 70% of rate capacity. •The unit includes compressor, condenser, evaporator, blower, the reservoir and a gas ...