| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that becaus a gas engine, a motor and elements such as compressor and the like constituting a heat pump system are integrally constituted as an outdoor unit so that new instrument design is required and cost is raised, in a heat pump type air-conditioning system to reduce a running cost by driving a compressor having a heat pump system to switch a gas engine and an electric motor between a day time and a night. SOLUTION: An ice storage tank 5, a first outdoor machine 1 of an aircooled heat pump package where a compressor 2a driven by an electric motor forms an element, and a second outdoor machine 3 of a gas engine heat pump package comprising a compressor 2b driven by a gas engine as an element are individually installed. The refrigerant route of the first outdoor machine is connected to a heat-exchange refrigerant route in the ice storage tank through an on-off valve and the one side of the refrigerant route of the second outdoor machine. A refrigerant route to the indoor machine is formed between a refrigerant route running from the other end side through the on-off valve and the other side of the refrigerant route of the second outdoor machine. A so formed ice thermal storage heat pump type air-conditioning system is provided. |
