Lubrication of cylinders, bearing and seals of refrigerating compressors. The LUNARIA FR are compatible with most of chlorofluorinated refrigerant gases and with ammonia in compatible service conditions : evaporator temperature higher than – 15°C (*). (*) In fact, in case of low-temperature refrigerating applications with ammonia, it is recommeded to use the specific lubricants LUNARIA NH or LUNARIA SH.