Excessive Load on Evaporator Above Design Conditions

Probable cause: Remedy:
A TEV is restricted to the amount of flow it can pass by the size of its orifice; therefore, if the load increases above the design limits, high superheat will result. Use an ALCO balance-ported TEV sized for the maximum load conditions. ALCO’s balance-ported valves modulate down to 20% of their nominal ratings.