Central Heating System
Product Details:
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Product Description
CENTRAL HEATING SYSTEM
The trainer contains two independent heating circuits that are equipped with a three-way mixing valve and a four-way mixing valve. The heat provided by an electric boiler can be dissipated via four different radiators. To investigate the full load behaviour of the boiler over an extended period, a plate heat exchanger is fitted in the domestic water circuit. The system has a closed water circuit with expansion vessel. Relevant temperatures and pressures are indicated on easy-to-read instruments. The system is controlled using a state-of-the-art digital controller.
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
- Function and operating behaviour of a modern heating system with digital heating controller
- 4-way mixing valve and 3-way mixing valve
- Electric boiler
- 2 circulating pumps, 1 domestic water pump
- 4 different radiators and additional plate heat exchanger as domestic water consumer
- Coloured pipes indicate feed and return flow
- 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...1.000L/h
Dimensions and Weight
- LxWxH: 1800x780x2000mm
- Weight: approx. 280kg
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