... workload and also improves students' enthusiasm.FeaturesComposition: Air conditioning compressor, condenser, condenser fan, dry bottle, ... seals, pressure gauge, bottle opener, multimeter, spare air conditioning pipe, environmental connectors, frozen oilProduction technology1. Panel ... testing tools7. Maintenance intervals: 90daysTechnical parameters1. Power supply: AC380V, 220V (turn DC12V)2. Dimensions: ...