Control method for circulating pump for hot water supply in building, involves switching on circulating pump, when temperature at inlet piping between hot water tank and water tap exceeds preset value

摘要

The method involves switching on a circulating pump (5), when temperature or temperature gradient at an inlet piping (2) between a hot water tank (1) and a water tap (3) exceeds preset value. A temperature sensor (6) detects the inlet piping temperature.