초록 ▼

In order to seal in refrigerant in a heat exchanger as much quantity as possible till to reuse the refrigerant at a new place of the heat exchanger after transfer or till to recover the refrigerant at a refrigerant recovery site, even when electricity is suspended to the new place or when outside te

In order to seal in refrigerant in a heat exchanger as much quantity as possible till to reuse the refrigerant at a new place of the heat exchanger after transfer or till to recover the refrigerant at a refrigerant recovery site, even when electricity is suspended to the new place or when outside temperature is lower than a certain temperature at the place where the heat exchanger such as an air conditioner having a separated interior instrument and exterior instrument is being installed, two on-off valves are provided in the refrigerant piping of the interior instrument besides two on-off valves provided in the refrigerant piping of the exterior instrument, or on-off valves are provided in each connecting pipe connecting with the refrigerant piping of the interior instrument and the refrigerant piping of the exterior piping, and the refrigerant is sealed in by closing all the on-off valves.

대표청구항 ▼

[ What is claimed is:] [1.] A method of reusing refrigerant in a heat exchanger being transferred from a first location to a second location, said heat exchanger including an interior instrument and an exterior instrument, a first refrigerant piping arranged in said interior instrument and having an

[ What is claimed is:] [1.] A method of reusing refrigerant in a heat exchanger being transferred from a first location to a second location, said heat exchanger including an interior instrument and an exterior instrument, a first refrigerant piping arranged in said interior instrument and having an interior heat exchanger, a second refrigerant piping arranged in said exterior instrument and having an exterior heat exchanger, connecting pipes connected with said first refrigerant piping and said second refrigerant piping to form refrigerant circulating channel to circulate a refrigerant, two on-off valves separately provided on upper and lower reaches of said second refrigerant piping in which the refrigerant flows through said exterior heat exchanger, and two on-off valves separately provided on upper and lower reaches of said first refrigerant piping in which the refrigerant flows through the interior heat exchanger, said method comprising the steps of:closing said four on-off valves before physical transfer of the heat exchanger from the first to the second location;removing said connecting pipes from both said first refrigerant piping and said second refrigerant piping;connecting said connecting pipes or the like to said first refrigerant piping and said second refrigerant piping after transfer of the heat exchanger to said second location; andsupplying any shortage of refrigerant to said refrigerant circulating channel, and opening said closed four on-off valves.