45
Instructions for the installer
3.3
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.
After transporting the boiler to the place of installation, proceed as follows to install it:
•
open boiler central door;
•
unscrew the screws securing the boiler to the wooden pallet;
•
lift the boiler from the pallet and position it on the loor, taking care not to damage it;
•
adjust the supporting feet, ensuring that the boiler is stable;
•
prepare:
» a condensate drain (see Fig. 18 Condensate drain);
» an outlet for the 3-bar and 7-bar safety valves;
» an outlet for the 6-bar safety valve of the solar circuit (in case the latter opens, it will release a mixture of water and glycol, which
should not be discharged into the sewers, but collected in a container instead).
•
connect the boiler to cold water supply pipes, the heating low and return pipes, the domestic hot water low pipes from the water heater,
the solar plant low and return pipes (see par.
Hydraulic connections
on page
53
).
•
connect the boiler to pipe for condensate drain (refer to par.
Hydraulic connections
on page
53
).
•
provide a system for relieving the 3-bar safety valve and the 7-bar safety valve. Otherwise, the boiler manufacturer shall not be held
responsible if the safety valves are activated and the room is looded;
•
provide a system for relieving the 6-bar safety valve of the solar circuit;
•
connect the boiler to the air intake and lue gas venting system.
•
connect the boiler to the gas supply system (refer to par.
Connection to gas mains
on page
53
).
•
connect power supply, ambient thermostat (optional) and other available accessories (see par.
Solar collector probe installation
on page
55
and following ones).
3.4
Boiler room ventilation
The boiler has sealed combustion chamber. Combustion air is not drawn from boiler room, therefore no speciic recommendations need to be
applied concerning the boiler room or openings and ventilation provided to the boiler room.
DANGER
the boiler must be installed in a room that is compliant with the legislation and standards in force in the country of installation,
which are herein considered as entirely transcribed.
Содержание MADEIRA SOLAR KRBS 12
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