The system comprises control panel, work bench, air-conditioner outdoor set, air-conditioner indoor set, instrumentation, simulated faults detection unit, faults simulationset, etc. 1. Work bench: It is moveable with integratedmulti-direction wheels and height-adjustable feet to compensatefor uneven flooring. The desk top is heat resistant,waterproofand made of highly-compressed board. The cabinet part with drawers and doors are for simulationoutdoor condensator dirty blocking. 2. Air-conditioner unit: some necessary devices for heat pump fission air-conditioner are available,including evaporator, condensator, four-pass valve, etc. Additionally, required devices such as control valve are offered in the pipe. 3. AC power supply control unit: powered by single-phase 3-wire AC 220V, one AC voltmeter (0~250V) and AC ammeter (0~10A) are available,the former is used for monitoringthe grid voltage while the latter for monitoringthe system starting current and operating current. The input voltage of the system is controlledby RCCB and key switch. 4. Refrigeration system pressure gauge unit: The available two vacuum pressure gauges with measuring ranges of -0.1~1.5MPa and -0.1~3.5MPa respectively indicate the varieties of system LV side and HV side pressures. 5. Temperature transducerunit: Four thermometers with PT100 sensor and 3 and 1/2 -digit display are available for measuring the temperature of inlet, outlet, condensator and evaporator.
Hands-on exercises:
Elementaryskill training 1.     Tool operationsof refrigeration system 2.     Pipes soldering of refrigeration system 3.     Leak hunting of refrigeration system 4.     Vacuumizing and R22 filling of refrigeration system Intermediate skill training (design, installation, commissioning & repairing) 5.     Circuit principle of GREE KFR-23 air-conditioner main board 6.     Electric elements measurement and system operation of air-conditioner 7.     Troubleshooting for GREE KFR-23 air-conditioner 8.     Troubleshooting for air-conditioner
Special tools		Portable soldering cabinet, knife for cutting pipe, expand tubes flaring kit, repairing valve with two meters, the metric /British system pie for adding fluid and vacuum pump
Faults simulationset		Up to 34 fault points are available for simulatingmany kinds of faults. The refrigeration faults comprise evaporatordirty blocking, condensator dirty blocking, capillary dirty blocking and capillary ice blocking; the electric faults cover power supply circuit, temperature transducercircuit, drive circuit, compressorprotectioncircuit, indoor cooler speed control circuit.
CONFIGURATION:
Special tools:	1 set
Faults simulationset:	1
Freon:	1 bottle
Accessories and connectingwires:	1 set
Operating instructions and laboratorymanual:	1 set