| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a solar hot-water supplier with a trial operation function in which gas secondary pressure of an auxiliary heat source (gas instantaneous water heater) can be easily adjusted and failure to return to the original state after adjustment can be prevented. SOLUTION: In this solar hot-water supplier 30 comprising a solar-heat water heater 1 having a hot-water tank 4, a hot-water/water mixing device 5 for mixing hot water from the hot-water tank 4 and water supply from a branch pipe 22 and a first control part 6 and the auxiliary heat source 11 having a heat exchanger 13 connected to its post-flow, a combustion part 12 and a second control part 14, a trial operation function is added to it, and in the trial operation mode, a mixing ratio in the hot-water/water mixing device 5 is automatically adjusted at the hot-water/water mixing device 5 so that water supply from the branch pipe 22 is 100% and a hot-water amount from the hot-water tank 4 is zero, and the secondary pressure of a heat-source gas of the auxiliary heat source 11 can be adjusted manually under the condition.</p> |
