| 摘要 |
An auto switching swimming pool/spa heater system, to be utilized with a pool and a spa, including a pool pump, a spa pump, and a single heater unit, the heater unit adapted to receive water flow from the pool pump and spa pump into an internal pool/spa flow control apparatus which directs water received from both the pool pump and the spa pump through a coiled heat exchange conduit of the heater unit, for subsequent heating thereof. The flow control apparatus including a bypass conduit with a spring loaded flow regulator valve therein adapted to enable water to bypass the heat exchange conduit upon an increase pressure build up of water directed towards the heat exchange conduit, water exiting the bypass conduit and water exiting the heat exchange conduit being directed through a single water outlet of the heater unit into the spa where heated water overflow passes from the spa into the pool, accordingly heating the pool. Further, the heater system includes a flow switch adapted to be triggered by water exiting the spa pump, the flow switch automatically shutting off the pool pump while spa water is being pumped therethrough.
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