5.1.2 Hot fresh water system

The autoclave pump takes cold water from the freshwater tank and sends it to the electric water heater, positioned located on the port side of the engine room.
The water contained in the water heater is heated and subsequently reaches the following uses:

• Shower on stern platform;
• Bathrooms;
• Galley sink;
• Cockpit sink.

Hot freshwater reaches all uses through distribution manifolds, which are equipped with shut-off valves to allow the system to be sectioned off in the event of a breakdown or for maintenance.
The water heater is powered by 230 V electricity supply.

To use hot water:

• The magneto-thermal switches for the water heater and autoclave, on the main switchboard, must be in the ON position;
• A power source (generator or shore) must be active;
• The service battery cut-off switch must be in the ON position.

The water inlet and outlet lines from the water heater can be shut off by means of ball valves.

A non-return valve is fitted to the inlet line to prevent hot water from flowing back into the circuit.

This valve shall be checked and replaced according to the indications given by the manufacturer.

WARNING

To activate the water heater, either activate the generator or get connected to shore mains, without forgetting to check the current amperage of the harbour you are moored into.

WARNING

Never switch on the electric resistance if the water heater is empty.