If the superheat setting of a thermostatic expansion valve is set too low, what would be the result, assuming that the system has a single evaporator?
the suction line will be abnormally warm due to a reduced amount of refrigerant returning back to the compressor
the suction line will be abnormally cold and liquid may flood back to the compressor
the box temperature will be pulled way down below the normal temperature range
the receiver level will be abnormally high due to a reduced amount of refrigerant returning back to the compressor
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