Patent ID: 6009714
Filing Date: 2000-01-04
Classification: F25B,Y02A,Y02B

Abstract:
A controller for an absorption cold/hot water generating machine, in which a refrigerating cycle is formed by pipe-connecting an evaporator, an absorber, a solution heat exchanger, a low-temperature generator, a condenser, and a high-temperature generator, and the solution level in a header of the high-temperature generator is kept within a prescribed range by controlling the flow rate of the solution fed from the absorber to the high-temperature generator;wherein a solution pump for feeding a solution from said absorber to the high-temperature generator is inverter-driven, and there is provided pressure difference detecting means for detecting a difference in pressure between said high-temperature generator and said absorber; andwherein there is provided control means for controlling the solution pump driving frequency of said inverter as a function of a pressure difference between said high-temperature generator and said absorber so as to keep the solution level in said header within the prescribed range.