Instrumented thermodynamic water heater

• View and identify the components of the system.
• Settings of a thermodynamic water heater
• Make an energy balance using the measurements of the parameters: energy consumed, temperatures and flow on water and air.
• Understand a refrigeration circuit by measuring pressure and temperature.

•  It is based on a De Dietrich brand water heater.
• The water heater has been modified for a better understanding of the system by the students.
• The heat pump is covered with a cover with transparent areas, to see the elements of the refrigeration circuit. The elements of the circuit are marked.
• The bench can be coupled with other elements of a water network system.
• The water heater and the accessories are mounted on a welded stainless steel tube frame, it is mounted on casters.
• A De Dietrich type TWH 220 E thermodynamic water heater
  • Balloon volume: 214 L
  • PAC power: 1700W
  • R134a fluid
  • COP at 15 ° C according to EN16147: 3.21
  • Electrical resistance: 2400W
  • With control panel and programming
  • A condensate evacuation device
• A safety and drain valve group on the cold water inlet.
• A valve on the cold water circuit.
• The water circuit ready to be connected to other equipment using quick couplings.
• Two 2 m hoses with quick couplings are provided.

Instrumentation :

• A float flowmeter on the hot water circuit.
• Two needle thermometers on cold and hot water
• A portable hot wire anemometer to measure the speed (therefore the flow rate) and the temperature of the air entering and leaving
• On the heat pump: two manometers: HP -1 to 30bar and LP: -1 to 10 bars with double scale.
• Four PT100 temperature probes on the refrigerant circuit: compressor inlet and outlet, expansion valve inlet, condenser outlet.
• An IP55 electrical cabinet integrating: Fuses; One on / off button; An emergency stop; A temperature display A temperature sensor selector; An energy meter