| 摘要 |
PURPOSE:To shorten a trial time of a fully automatic hot water supply, room heating system by providing a remote control unit for applying an operation command signal, inhibiting an operation controller to receive the signal of the control unit, providing a trial mode for conducting an operation command of a system, and providing means for displaying an operating state. CONSTITUTION:A control circuit 26 of an operation controller 20 has a CPU 27, and a relay circuit 28. The CPU 27 controls to energize a water pouring solenoid valve 11, a circulation pump 17 and a passage switching valve 14 through the circuit 28 in response to outputs of a pouring hot water amount sensor 13, a hot water supply amount sensor 9, a water flow switch 18 and a water level sensor 16. A trial procedure is programmed in the CPU 27, a trial mode can be set by replacing operating state switching connectors 23, 24 of an operation switching unit 22, and a trial state can be informed by flashing an LED 25. Accordingly, the trial can be conducted without reciprocating between an interior and an exterior of a house many times. |
