Plant starting and safety devices intervention checking Studying the operation of a thermostatic expansion valve Analyzing the system behaviour versus the variation of: Expansion device Superheat (when the thermostatic expansion valve is used) Air flow rate at condenser and/or evaporator Refrigerant charge into the system Plotting the cycle in the refrigerant pressure-enthalpy diagram
Data acquisition and calculation of: Thermostatic valve superheat Heat balances corresponding to evaporator, condenser, compressor Refrigerant mass flow Ideal and actual efficiency Volumetric compression efficiency Troubleshooting of system and of its components