... air conditionerHot water heat pump + air conditioner MC Series - Air conditioner & water heat pumpModel YMC-3BYMC-4BYMC- ... and air conditioner function2) Durable: high efficiency tube-in-shell heat exchanger, name-brand compressor, four way ... machine8) All-around protection: water temperature, compressor exhaust pressure, compressor temperature, evaporator temperature, environment temperature and so ...