Ariston 450 Gebruikershandleiding - Pagina 28

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2.2. Hydraulic connection

Attention! Installation of safety valve Included In the delivery set Is necessary.

Do not Install any stop valve between the safety valve and the inlet of the tank and do not block the drain hole

of the safety valve.

Demountable connectors should be used for the water heater connection to the water supply system.

Standard connection (Fig. 1)

2.2.1. Safety valve supplied must be installed on the cold water inlet of the water heater (marked with the blue ring). It is

recommended to turn the safety valve no more than 3-4 turns, providing sealing with water-proof sealing material.

2.2.2. Connect the inlet of the safety valve to the cold water line with a tube or fl exible hose.

2.2.3. Connect a tube or fl exible hose to the hot water outlet of the water heater (marked with the red ring) for hot water

removal to the draw-off point.

2.2.4. For easy maintenance, it is recommended to install a T-piece with shut-off valve between the cold water inlet and safety

valve of the water heater.

It will help to drain water from the water heater without safety valve removal.

2.2.5. To facilitate the access of air into the tank when draining water, it is recommended to install an additional T-piece with

shut-off valve at the hot water output.

2.2.6. When water pressure exceeds 5 bar, place before the safety valve a reducer to reduce the pressure.

Connection to open tank fi lled with water (Fig. 2)

2.2.7. Water is supplied to the water heater from the tank by gravity. Safety valve is not necessary in this type of connection.

2.3. Electrical connection

Attention! Electrical wiring should be done by a qualifi ed technician, ensuring it complies with safety rules.

The manufacturer Is not to be held responsible for any damage caused by the Incorrect earthing of the system

or for fault defaults of the electricity supply.

2.3.1. If the product is already equipped with a cable and plug, simply connect it to a power supply source.

2.3.2. If the water heater is supplied without a power supply cable, use a cable featuring the same characteristics (type

H05VV-F 3x1,5 mm2, Ø 8,5 mm) for connection. Remove the cover. The power supply cable should be threaded through the

relevant hole on the cover of the appliance and fi xed to the thermostat terminals. Then every wire should be fi xed in place

by the corresponding screw.

2.3.3. The water heater must be earthed. Grounding scheme should ensure the absence of electric potential on the body

of the water heater. The earth cable (of yellow-green color) should be fi xed to the terminal marked by the symbol

Fix the power supply cable using the cable clamps.

Make sure that the power supply voltage conforms to the water heater technical characteristics indicated on

the data plate.

Flange on the 5 bolts

Autoclave flange

Indicating light

contacts

Earthing

Power supply