Patent ID: 7143592

Claim:
An absorption chiller-heater comprising: a first regenerator heated by exhaust heat; a heat fluid flow path in which a heat fluid heated by the exhaust heat flows, supplying the exhaust heat to said first regenerator; a flow path control device provided on said heat fluid flow path for opening and closing the heat fluid flow path, thereby switching the heat fluid to flow or to be cut off to said first regenerator; a second regenerator heated by combustion heat; a burner having a variable combustion amount, supplying the combustion heat to said second regenerator; a first temperature detector for detecting a temperature of said first regenerator or said second regenerator; a cooling medium temperature detector for detecting a temperature of a cooling medium supplied to an absorber, wherein said controller changes values of the regenerator set temperatures in accordance with the temperature of the cooling medium detected by said cooling medium temperature detector; a heat medium temperature detector for detecting a temperature of a heat medium output from an evaporator; and a controller for controlling operation of said flow path control device and said burner; wherein said controller sets the temperature detected by said first regenerator temperature detector to be a regenerator temperature, and said controller controls at least one of operations to open and close said flow path control device and to increase and reduce the combustion amount of said burner in accordance with the temperature of the heat medium detected by said heat medium temperature detector and the regenerator temperature.