Domestic hot water supply, domestic cold water, and domestic hot water return piping lines cross a partition or boundary indicated by a break line. The domestic hot water supply line includes inline valves and connects through to the DHWS designation. The domestic cold water line features a check valve and shutoff valves before continuing to the DCW connection. The domestic hot water return line incorporates a dedicated domestic hot water pump designated as DHWP-1 with an adjacent motor symbol, strainer, check valve, and shutoff valves.
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