| 摘要 |
<p>A boiling and/or chilling water unit is disclosed that provides numerous operational and safety advantages. A first advantage is the avoidance of pressure spikes damaging a first control valve adjacent the main water inlet by controlling the relative timing between the closure of it and downstream second and/or third flow control valves. Another advantage flows from monitoring the length of time the unit's compressor has been continuously activated without the device being operated to supply chilled water and removing water and/or power supplies from the water unit upon detection of a predetermined period of that time. Another advantage flows from the control means removing water and/or power supplies from the water unit upon a level sensor indicating the presence of a predetermined level of water in a catch tray beneath the units' water tank(s). The use of flow restrictors between the mains water inlet and the unit's water tanks to control the flow from these water tanks is also disclosed.</p> |
