Product number: 814A
The Refrigeration and Air Conditioning Control and Fault Simulator, Model 814A, enables the study and operation of various components as applied to the refrigeration plant used in air conditioning systems. Both cooling and heating modes (Reverse cycle operation can be studied).
Designed for single phase operation the demonstration case is divided into two main boards: -
a) Mimic Diagram with room temperature and humidity potentiometers
b) Control board with Touch Screen programmable controller and normal Run/Fault switches
The Mimic diagram is split into two sections;-
1) Cooling Mode
2) Heating Mode
Specifications and resources
The following main functions and components are simulated:-
Refrigeration/Cooling,
Heating/Heat Pump,
Compressor,
Crankcase Heater,
High Pressure Switch,
Reversing Valve,
Condensing Unit,
Non return Valve (outdoor use),
Expansion Device (outdoor use),
Reversible Filter drier,
Sight Glass (Heating),
Non Return Valve (indoor use),
Expansion Device (indoor use),
Evaporator,
Low pressure Switch,
Suction Line Accumulator,
Defrost Facility.
Refrigeration/Cooling,
Heating/Heat Pump,
Compressor,
Crankcase Heater,
High Pressure Switch,
Reversing Valve,
Condensing Unit,
Non return Valve (outdoor use),
Expansion Device (outdoor use),
Reversible Filter drier,
Sight Glass (Heating),
Non Return Valve (indoor use),
Expansion Device (indoor use),
Evaporator,
Low pressure Switch,
Suction Line Accumulator,
Defrost Facility.
The following Normal operation can be simulated in Cooling Mode:
Normal operation,
High Pressure Switch – high pressure fault,
Low Pressure Switch – low pressure fault,
Compressor - failed,
Indoor fan - failed,
Outdoor fan - failed,
Crankcase Heater - failed,
Reversing Valve - failed,
Drier - blocked,
Expansion device - failed,
Air flow – low,
Non return Valve – blocked/seized.
Normal operation,
High Pressure Switch – high pressure fault,
Low Pressure Switch – low pressure fault,
Compressor - failed,
Indoor fan - failed,
Outdoor fan - failed,
Crankcase Heater - failed,
Reversing Valve - failed,
Drier - blocked,
Expansion device - failed,
Air flow – low,
Non return Valve – blocked/seized.
The following Fault conditions can be simulated in Heating Mode:
Normal operation,
Low Pressure Switch – low pressure fault,
Compressor - failed,
Indoor fan - failed,
Outdoor fan - failed,
Crankcase Heater - failed,
Reversing Valve - failed,
Drier - blocked,
Expansion device - failed,
Air flow – low,
Non return Valve – blocked/seized.
Normal operation,
Low Pressure Switch – low pressure fault,
Compressor - failed,
Indoor fan - failed,
Outdoor fan - failed,
Crankcase Heater - failed,
Reversing Valve - failed,
Drier - blocked,
Expansion device - failed,
Air flow – low,
Non return Valve – blocked/seized.
