Heating systems – Automatic control – Heat source is a reverse cycle refrigerating system or heat...
Patent
1975-04-10
1976-10-19
Wayner, William E.
Heating systems
Automatic control
Heat source is a reverse cycle refrigerating system or heat...
62238, F24D 300, F25B 2900
Patent
active
039866645
ABSTRACT:
There is provided a heating installation comprising a heat pump and a fuel-fired boiler to which a radiator circuit is connected. A separate hot water heater may be coupled in parallel with the boiler. The hot side of the heat pump is connected to a first shunt pipe in the radiator circuit and is thus coupled in parallel with the boiler. A second shunt pipe is coupled in parallel with the boiler and a third shunt pipe is connected between the hot side of the first shunt pipe and the second shunt pipe. A first threeway shunt valve is connected between the first and third shunt pipes and a second threeway shunt valve is connected between the second shunt pipe and the hot side of the radiator circuit. These two shunt valves may be interlocked.
Further the compressor of the heat pump may be arranged to be controlled by the pressure of the refrigerant in the heat pump circuit between the evaporator and the compressor.
REFERENCES:
patent: 1826950 (1931-10-01), Paige
patent: 2095017 (1937-10-01), Wilkes et al.
patent: 2102940 (1937-12-01), Buchanan
patent: 2191623 (1940-02-01), Philipp
patent: 3117425 (1964-01-01), Hartwell
Projectus Industriprodukter AB
Wayner William E.
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