ACV SMART Line 320 - Installation; Safety Instructions

SAFETY INSTRUCTIONS
General remarks
• Connections (electrical, hydraulic) must be carried out in accordance with
applicable standards and regulations.
• If the water drawing off point is far from the tank, installing an auxiliary DHW loop
can allow to get hot water more quickly at all times.
Essential instructions forthecorrect operation ofthesystem
• The tank must be installed in a dry and protected area.
• Install the appliance to ensure easy access at all times.
• To avoid any risk of corrosion, connect the stainless steel tank directly to the earth.
Use an adjustable earth clamp (see example below) on one of the DHW connections
to connect to the earth. Advised copper wire section: 2.5mm².
• Make sure to install a pressure reducing valve set at 4.5 bar in the DHW circuit if the
supply pressure is higher than 6 bar.
• On the DHW circuit, install an approved safety group, comprised of a safety valve
set at 7 bar, a check valve and a stop valve.
• Make sure that the outlet of the safety unit goes directly to the sewer to avoid any
potential damage.
• Do not install the safety group above the tank to avoid water discharge on to the
tank.
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INSTALLATION
• The installation of a domestic expansion vessel avoids discharge from the safety
valve (loss of water).
• Capacity of domestic water vessels:
• 18 Litres for SL 320
• 24 Litres for SL 420 / 420D
• 35 Litres for SL 600
Refer to the manufacturer’s technical instructions on the expansion vessel for more
details.