Patent ID: 6945059

Claim:
A refrigerant cycle comprising: a compressor delivering refrigerant to a condenser, refrigerant passing from said condenser to an expansion device, said expansion device having a variable orifice size to meter refrigerant flowing through said expansion device, refrigerant flowing though said expansion device passing downstream to an evaporator, the amount of refrigerant passing to said evaporator being at least partially dependent upon an evaporator condition under normal operating conditions, and refrigerant passing from said evaporator back to said compressor; a defrost element provided at said evaporator; and a control for at least said compressor and said defrost element, said control further being operable to control the amount of refrigerant passing to said evaporator, said control being operable to initiate a defrost cycle by actuating said defrost element and stopping said compressor, said control further being operable to end said defrost cycle and move said refrigerant cycle into a defrost transient mode, and said control controlling an amount of refrigerant passing to said evaporator by utilizing a defrost transient value at the end of the defrost cycle.