Electrical Faults In Full Air Conditioning Systems

Product Description

Electrical Faults in Full Air Conditioning Systems

Technical Description of Electrical Faults in Full Air Conditioning Systems

Identifying electrical faults in air conditioning systems requires comprehensive knowledge. This knowledge includes the design and operation of the individual electrical components as well as the reading of circuit diagrams. Helps to acquire this knowledge. Demonstrates the electrical circuit of a complex full conditioning system with heat pump function. The control circuits are actually present. The components in the load circuits are simulated (e.g. compressor, heater, 4-way reversing valve). The air conditioning system with heat pump function cools in the summer and heats in the winter. During heating operation the defrost timer introduces a hot gas defrosting by briefly switching the 4-way reversing valve. At very low outer temperatures an electrical auxiliary heating is activated during heating operation. With low air humidity the hygrostat activates the humidifying function. Typical protection devices, such as circuit breaker and frost protection monitor, complete the electrical circuit. The operating state of the simulated components is indicated via lamps in the circuit diagram on the front panel.

Specification of Electrical Faults in Full Air Conditioning Systems

• Experimental unit from the practical series for the training of mechatronics engineers for refrigeration
• Simulation of the electrical circuit of a complex conditioning system with humidifier and heat pump function for heating, cooling and humidifying
• Real control circuits with electrical components, simulated load circuits
• Humidifier with hygrostat, solenoid valve and float switch (pump simulated)
• Hot gas defrosting by switching the 4-way reversing valve
• Operating states of the simulated components indicated via lamps in the circuit diagram
• Circuit diagram depicted on the front panel
• Identification of 30 faults: multimeter measures voltages or resistances at the lab jacks

Technical Data of Electrical Faults in Full Air Conditioning Systems

Thermostat to switch between heating/cooling

• Measuring range: 1...60°C

Electrical compressor components

• Start-up relay
• Start-up capacitor
• Operating capacitor
• Overheat protection
• 2 pressure switches

Electrical components of room air fan

• Start-up capacitor
• Heinemann circuit breaker

Humidifier components

• Hygrostat: measuring range 30...95% r.h.
• Float switch
• Solenoid valve
• Heinemann circuit breaker

Defrosting components

• Frost protection monitor: -10...12°C
• Timer: switching time 10...60min
• Circuit breaker for auxiliary heating

Dimensions and Weight of Electrical Faults in Full Air Conditioning Systems

• l x w x h: 1000 x 400 x 850 mm
• Weight: approx. 30 kg