CONTROL METHOD FOR HOT-WATER SUPPLY TEMPERATURE AND SOLAR WATER HEATER

摘要

PROBLEM TO BE SOLVED: To provide a solar water heater with an auxiliary heat source built therein contributing to energy saving by effectively using high-temperature hot water reserved using solar heat.;SOLUTION: A rise of heating temperature (α) by the auxiliary heat source 11 is calculated with an equation including (H×25)÷Q, and when a hot-water temperature entering the auxiliary heat source 11 is controlled on the side of a solar-heat water supplier 1, calculation is made with a mixed hot-water flow value (L/minute) as an initial value for Q at the start of hot-water supply (at restart when restarted after stop of hot-water supply), and then, the hot-water supply temperature is controlled by updating to the latest minimum mixed hot-water flow value (L/minute). Here, H is the number of a heating capacity lower limit value of the auxiliary heat source 11 and Q for the mixed hot-water flow (L/minute).;COPYRIGHT: (C)2003,JPO