HL 300 Central Heating System Didactic Equipment Vocational Education Equipment Thermal Lab Equipment
Function and operating behaviour of a hot water heating system with digital heating controller Features - modern heating system with digital controller - closed water circuit with expansion vessel Learning objectives/experiments - familiarisation with the components of a modern heating system and their function - operating behaviour of a digitally controlled heating circuit with three-way mixing valve - operating behaviour of a digitally controlled heating circuit with four-way mixing valve - investigations on a plate heat exchanger operated in counterflow - investigation of pressure loss on different valves and fittings - filling heating systems - commissioning heating systems - hydronic balancing of radiators - determination of pump curves - determination of pipework characteristics - behaviour of system with air in the pipework Specification [1] function and operating behaviour of a modern heating system with digital heating controller [2] 4-way mixing valve and 3-way mixing valve [3] electric boiler [4] 2 circulating pumps, 1 domestic water pump [5] 4 different radiators and additional plate heat exchanger as domestic water consumer [6] coloured pipes indicate feed and return flow [7] measurement of temperature, pressure and flow rate Technical data Electric boiler, 4 stages - power: 6-9-12-15kW - max. feed temperature: 95°C - water tank capacity: 16L Pump - power consumption: 70W - max. flow rate: 6L/min - max. head: 4m Domestic water pump - power consumption: 20W - max. flow rate: 640L/h - max. delivery pressure: 0.14bar Plate heat exchanger: 3kW, 10 plates Water meter: 2.5m3/h Measuring ranges - temperature: 3x 20...120°C / 2x 0...120°C / 2x 0...100°C / 4x 0...80°C - pressure: 8x 0...2,5bar - flow rate: 100...1000L/h 400V, 50Hz, 3 phases 230V, 60Hz, 3 phases LxWxH: 1800x780x2000mm Weight: approx. 280kg
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