Control of space heating and water heating using variable speed

Details Control of space heating and water heating using variable speed Control of space heating and water heating using variable speed

1990-09-21

1992-01-21

Tapolcai, William E.

Refrigeration

Processes

Compressing, condensing and evaporating

62160, 622387, F25B 2700

Patent

active

050818465

ABSTRACT:
In an integrated heat pump and water heating system with a variable speed compressor drive, a variable speed indoor fan, and an expansion valve with a variable duty cycle the indoor fan speed is controlled as a function of a space heating load, and the compressor speed is controlled as a function of outdoor temperature and space heating load.

REFERENCES:
patent: 2751761 (1956-06-01), Borgerd
patent: 2934913 (1960-05-01), Haines et al.
patent: 4314456 (1982-02-01), Harnish
patent: 4364237 (1982-12-01), Cooper et al.
patent: 4592206 (1986-06-01), Yamazaki et al.
patent: 4645908 (1987-02-01), Jones
patent: 4766734 (1988-08-01), Dudley

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