43
Instructions for the installer
3.4 Installing the boiler
DANGER
Before connecting the boiler to CH and DHW networks, clean the pipes carefully.
Before commissioning a NEW system, clean it to remove any metal chips due to machining and welding, and any oil and grease that
might negatively affect boiler operation or even damage it in case they get inside it.
Before commissioning a RECONDITIONED system (where radiators have been added, the boiler has been replaced, etc.) thoroughly
clean it to remove any sludge and residues.
Clean the system using standard non acid products, available on the market.
Do not use solvents as they could damage system components.
Furthermore, in the central heating system (either new or reconditioned), it is always advisable to add to water a suitable
percentage of corrosion protectants for multi-metal systems that will create a protective film onto all internal surfaces.
The manufacturer shall not be held responsible in case of damage to people, animals, or property due to failure to follow the
above mentioned instructions.
DANGER
For all boiler installation types, it is necessary to install a filter which can be inspected (Y-shaped type) with Ø 0.4mm-mesh, on the
return pipe before the boiler.
In order to install the boiler proceed as follows:
• Affix the template (see Fig. 6 Paper template) on the wall.
• Drill two Ø 10 mm holes in the wall to accommodate the two boiler bracket wall blocks.
• If necessary, provide holes in the wall to allow air intake and/or flue gas venting ducts to pass through it;
• Fix the two brackets to the wall carrying out in sequence the following steps:
» screw the first two M8 nuts fully home inside the double screw threads.
» screw in the screws fully home inside the wall blocks.
» insert the brackets in the parts of the screws that protrude from the wall.
» screw the last two M8 nuts fully home inside the double screw threads.
• Position the connections for the gas mains pipe G, the cold water inlet pipe F, the hot water outlet pipe C, the hot water inlet pipe M and
return pipe R and the DHW recirculation if provided RI, as indicated at the bottom of the template.
• Provide a condensate drain and an outlet for the 3-bar and 7-bar safety valves.
• Hook boiler to supporting brackets.
• Connect the boiler to mains pipes by means of the coupling kit supplied with the boiler (see
Hydraulic connections
on page
52
).
• Connect the boiler to the pipe for 3-bar and 7-bar safety valves drain, using the silicon tubes provided.
• Connect the boiler to pipe for condensate drain (refer to
Condensate drain
on page
53
).
• Connect the boiler to the air intake and flue gas venting system (see
Air intake and flue gas venting system
on page
44
).
• connect power supply, ambient thermostat (when available) and other available accessories (refer to the following paragraphs).
Fig. 7 Mounting bracket fixing
