| 摘要 |
Water distribution system, including at least a hot water piping, a diverting piping, an air-water exchanger and a hot water source. The hot water piping provides hot water to a user at a point-of-use through a faucet. The air water exchanger selectively removes retained water retained in a hot water piping portion, into the diverting piping, when at least one activation criteria is met, while admitting air into the hot water piping portion through the faucet to replace the displaced retained water. The air water exchanger ceases operation when at least one deactivation criteria is met, after which the hot water piping portion is refilled with hot water from the hot water source. |
