| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent trouble of supplying hot water from happening when distributing and flowing refrigerant simultaneously to a water refrigerant heat exchanger for supplying hot water and a water refrigerant heat exchanger for heating. <P>SOLUTION: As efficiency of heating is inferior to that of hot water supply because of heat radiation loss and so on, even a compressor 21 having capacity of 9.0 kW can substantially make use of capacity of approximately 7.7 kW. Thus, a controller S1 distributes 4.7 kW for heating and 3.0 kW for hot water supply and conducts frequency control of the compressor 21 and valve opening control of an expansion valve 26 for heating and an expansion valve 27 for hot water storage. In the case that quantity of remaining hot water becomes 50l and temperature of hot water detected by a hot water temperature sensor 45 is lower than 55°C and it is judged as an emergency situation on the brink of out of hot water, substantial capacity of the compressor 21 is made to be approximately 8.4 kW, the controller S1 distributes 2.4 kW for heating and 6.0 kW for hot water supply and conducts frequency control of the compressor 21 and valve opening control of the expansion valves 26, 27. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
