To solve a problem wherein a foreign matter is remained in other line of refrigerant circuit, when a method of diverting an existing pipe to the refrigerant circuit of an indoor unit of 1:1 correspondence to replace a new refrigerant is applied to the refrigerant circuit having a plurality of indoor units, in a conventional multi-type air conditioner.
In this multi-type air conditioner comprising the plurality of indoor units constituting the multi-type refrigerant circuit and a single outdoor heat exchanger, a chloride recovery circuit is formed, a chloride recovery means having an activated carbon filter is provided in the circuit, chloride recovery operation and cleaning buttons are provided in an outdoor control substrate, and a refrigerant flows in all piping lines, when the chloride recovery operation button is turned on, to carry out a chloride recovery operation.
| JP2017116219 | AIR CONDITIONER |
| JPH06174333 | HEAT PUMP |
| JP2005043025A | 2005-02-17 | |||
| JP2005156078A | 2005-06-16 | |||
| JP2005009839A | 2005-01-13 | |||
| JP2003314878A | 2003-11-06 |
| WO1996012921A1 | 1996-05-02 |
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
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