REVERSE CYCLE REFRIGERATION AND AIR CONDITIONING UNIT

A training unit designed for students of refrigeration and air conditioning, using components familiar from real installation and maintenance work. The unit deliberately limits instrumentation to promote the use of service gauges and hand-held thermometers as used in everyday maintenance. Demonstrates the use of both air-cooled and water-cooled condensers and reverse cycle operation for evaporator defrosting and reversible air conditioning (heat pumps). Learn about REVERSE CYCLE REFRIGERATION AND AIR CONDITIONING UNIT specifications for optimal educational outcomes.. Components are clearly laid out on a sheet metal panel. Hand valves allow isolation of circuit sections and selection of four different expansion devices. Learn about REVERSE CYCLE REFRIGERATION AND AIR CONDITIONING UNIT equipment for optimal educational outcomes.. Two evaporators are fitted – one forced (fan-driven) and one natural convection. A suction pressure regulator allows two evaporators to operate at different pressures and temperatures from one compressor. Learn about REVERSE CYCLE REFRIGERATION AND AIR CONDITIONING UNIT suppliers for optimal educational outcomes..

• High starting torque motor with built-in winding protector
• Air-cooled condenser with liquid receiver
• Remote water-cooled condenser

Forced air evaporator: 3/8" O.D. copper tube with aluminium fins

Flow controls (selectable by handwheel valve):

• Automatic expansion valve
• Internally equalised thermostatic expansion valve
• Externally equalised thermostatic expansion valve

Static evaporator: Copper tube with aluminium fins; capillary tube with separate filter drier (selectable by handwheel valve)

Reverse cycle operation:

• Evaporator pressure regulating valve for dual-temperature operation
• High and low-pressure switches
• Compound gauge and high pressure gauge
• 3 × sight glasses
• 4 × check valves
• 9 × hand valves

Electrical control box: Indicators/warning lamps, on/off controls for evaporator fan, condenser fan and reverse cycle contactor with overload, residual current device