Plumbing

Water connection

^Connect the cold water intake hose (blue mark) to the cold water valve and the hot water intake hose (red mark) to the hot water valve.

If the machine is being connected only to a cold water supply, both the hot and cold water intake hoses must be attached to the cold water valve through the use of a Y adapter (available at a hardware store). Both hoses must be connected to a water source or the machine will not function properly.

Do not connect the washer to hot water only.

^Turn on the valve(s) and check for leaks. The water pressure must be within 15 -145 psi (1 -10 bar). If the water pressure is greater that 145 psi (10 bar) a pressure reducer must be installed. If the water pressure is below 15 psi (1 bar) there will not be enough water available for a complete fill.

The water intake hoses are equipped with screen filters. Do not remove these filters except for cleaning.

Tips for a hot water connection

The hot water temperature from the hot water valve must not exceed 140°F (60°C); the ideal temperature is 130°F (55°C).

If there is no water pressure at the hot water inlet, the unit will automatically switch to cold water after several minutes.

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Miele W 4840 Water connection, Do not connect the washer to hot water only, Tips for a hot water connection