Air conditioner

Details Air conditioner Air conditioner

1988-11-01

1989-09-05

King, Lloyd L.

Refrigeration

Reversible, i.e., heat pump

623246, F25B 2700

Patent

active

048627054

ABSTRACT:
A multi-room type of heat pump air conditioner comprises an outdoor unit including a compressor, an outdoor four-way valve and an outdoor heat exchanger, a plurality of indoor units, each including an indoor heat exchanger and a throttle device, and the indoor units being connected in parallel by means of a first and a second connecting pipe so as to form a refrigerating cycle, wherein each indoor heat exchanger has one end connected to an indoor four-way valve so as to switch the end from one of the first and the second connecting pipe to the other; each indoor heat exchanger has the other end connected to a third connecting pipe for connecting between the indoor units, through the throttle device, and the third connecting pipe and the indoor four-way valve are connected to each other through an opening and closing valve in each indoor unit.

REFERENCES:
patent: 2893218 (1959-07-01), Harnish
patent: 2907178 (1959-10-01), McNatt
patent: 4104890 (1978-08-01), Iwasaki
patent: 4620423 (1986-11-01), Hopkinson et al.
patent: 4771610 (1988-09-01), Nakashima et al.

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