Heat exchange – With alarm – indicator – signal – register – recorder – test or... – Remotely controlled inspection means
Patent
1977-03-07
1978-10-31
Myhre, Charles J.
Heat exchange
With alarm, indicator, signal, register, recorder, test or...
Remotely controlled inspection means
62160, 165 22, 165 28, 165 62, 237 2B, F25B 2900
Patent
active
041228936
ABSTRACT:
An air conditioning system, particularly well suited for use in a multi-zoned building, includes an air conditioning unit for each zone. These air conditioning units can be either all reversible cycle air cooling and heating units or a mix of reversible cycle units and air cooling only units. Each unit, regardless of whether it is a reversible cycle or cooling only unit, has a refrigerant-water contacted coil and a refrigerant-air contacted coil. The refrigerant-water contacted coil of all the units are interconnected by a closed loop water circulation circuit. At least one of these units has air ducts for passing out-of-doors air across its refrigerant-air contacted coil and into the building zone served by it. When the temperature of the water in the closed loop circuit is above a predetermined value, the temperature of the out-of-doors air is below the temperature of the air within the served zone, and the temperature of the air within the served zone is above a pre-set value, the refrigerant compressor of unit serving that zone is deactivated and an adequate amount of out-of-doors air is allowed to pass into the zone for cooling the zone air. However, when the temperature of the closed loop circuit falls below the predetermined value and the temperature of the air within the served zone is above the pre-set value, the refrigerant compressor of the unit serving that zone is re-activated and the amount of out-of-doors air allowed to pass into the zone is decreased to a point, or completely stopped, whereat it is no longer adequate for cooling the zone air even though the temperature of the out-of-doors air be sufficiently below the temperature of the air in the served zone to effect cooling.
REFERENCES:
patent: 3823572 (1974-07-01), Cochran
patent: 4054035 (1977-10-01), Trelease
American Air Filter Company, Inc.
LaTulip Margaret A.
Myhre Charles J.
Winger Jon C.
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