Computerized Module For Studying Heating Systems In Civil Applications Refrigeration Lab Equipment Technical Didactic Equipment

CHTC Computerized Module For Studying Heating Systems In Civil Applications Refrigeration Lab Equipment  Technical Didactic Equipment

This module has been specifically designed for educational aims and it concerns the study of different engineering solutions used at present in heating systems for civil applications: underfloor heating or heating with radiators, with outdoor reset control of water delivery temperature; heating with radiators and zone valves; fan-coil heating with fan speed control. A control unit enables the autonomous operation (via local joystick) or remote operation (by optional PC via USB connection cable) of the system.
TRAINING PROGRAM
• Procedures for water filling and air bleeding from the system
• Data acquisition via PC (values of water/air temperature, flow rate, pressure in different points of the circuit)
• Calculating the heat emission curve of a heating element
• Studying the operation of a mixing valve and determining its characteristic and authority with respect to the controlled circuit
• Studying the operation of an outdoor reset controller
• Studying the operation of a proportional controller
• Modality for calculating the used thermal energy
TECHNICAL SPECIFICATIONS
• Steel structure mounted on wheels, painted and treated in the oven
• Colour schematic diagram
• Heating system including:

- 50-liter electric boiler, expansion vessel, automatic bleed valves, automatic filling unit, safety valve, distribution manifolds;
- mixed system with three-way motor-driven valve, calibration valve, circulation pump, radiator and underfloor system, with proportional control of delivery temperature versus outdoor temperature (simulated by PC)
- distributed system with circulation pump, radiator with zone valve and fan coil with proportional control of fan speed versus room temperature
• Control unit with the following characteristics:
- autonomous operation and remote-controlled operation (via optional PC)
- USB interface for connection with PC
- LCD display for displaying the analog outputs, the faults, the input signals: temperatures, pressures, flow rates
- electronic board and converters for input/output signals
- multi-function interface board that transforms the module or PC into an industrial apparatus controlling and processing the analog inputs and analog/digital outputs such as the state of solenoid valve, the state of pumps, etc…
- fault insertion
- keyboard
• 6 Pt100 probes for detecting temperature
• 2 flow sensors
• 3 pressure sensors
• Thermomagnetic - earth leakage control button
• Emergency button
Power supply: 230 Vac 50 Hz single-phase - 1500 VA (Other voltage and frequency on request)
Dimensions: 200 x 70 x 190 cm
Net weight: 200 kg
Supply with 
THEORETICAL – EXPERIMENTAL HANDBOOK