Beretta Mynute J 24 R.S.I. Manuel D'installation Et D'utilisation page 3

EN
INSTALLER
1 - GENERAL SAFETY DEVICES
Our boilers are built in our plants and checked down to the smallest de-
tail in order to protect users and fitters from injury. After working on the
product, qualified personnel must check the electrical wiring, in particular
the stripped part of conductors, which must not stick out from the terminal
board, avoiding possible contact with live parts of such conductor.
This instruction manual, together with the user manual, are integral parts
of the product: make sure that they remain with the appliance, even if it is
transferred to another owner or user, or moved to another heating system.
In case of loss or damage, please contact your local Technical Assistance
Service for a new copy.
Boiler installation and any other assistance and maintenance operation
must be carried out by qualified personnel according to current local and
national regulations.
The installer must instruct the user about the operation of the appliance
and about essential safety regulations.
This boiler must only be used for the application it was designed for. The
manufacturer declines all contractual and non-contractual liability for injury
to persons or animals or damage to property deriving from errors made
during installation, adjustment and maintenance and from improper use.
After removing the packaging, make sure the content is in good conditions
and complete. Otherwise, contact the dealer from who you purchased the
appliance.
The safety valve outlet must be connected to a suitable collection and
venting system. The manufacturer declines all liability for any damage
caused due to any intervention carried out in the safety valve.
The safety valve outlet must be connected to a suitable collection and
venting system. The manufacturer declines all liability for any damage
caused due to any intervention carried out in the safety valve.
Dispose of all the packaging materials in the suitable containers at the
corresponding collection centres.
Dispose of waste being careful not harm human health and without employ-
ing procedures or methods which may damage the environment.
During installation, inform the user that:
- in the event of water leaks, the water supply must be shut off and the Technical
Assistance Service must be contacted immediately
- the operation pressure of the hydraulic system must be within 1 and 2 bar, and
therefore, must no exceed 3 bar. If necessary, let qualified personnel from the
Technical Assistance Service intervene
- if the boiler has not been used for a long time, it is recommended that the
Technical Assistance Service performs, at least, the following operations:
• turn "off" the main switch of the appliance and the general switch of the
system
• close the gas and water taps on both the heating and domestic hot water
circuits
• drain the heating and domestic hot water circuits to prevent freezing
- boiler maintenance must be carried out at least once a year. This should be
booked in advance with the Technical Assistance Service.
For safety, always remember that:
The boiler should not be used by children or unassisted disabled people.
It is dangerous to activate electrical devices or appliances, such as switches,
home appliances, etc., if you smell gas or fumes. In the event of gas leaks,
ventilate the room opening doors and windows; close the gas general tap;
contact the qualified personnel from the Technical Assistance Service im-
mediately
Do not touch the boiler while barefoot or if parts of your body are wet or
damp
Before cleaning operations, disconnect the boiler from the main power sup-
ply by turning "OFF" the two position system switch and the main control
panel switch
In some parts of the manual, some symbols are used:
WARNING = for actions requiring special care and adequate prepara-
tion
FORBIDDEN = for actions THAT MUST NOT be performed
Do not modify safety and adjustment devices without the manufacturer's
permission and relative instructions
Do not pull, disconnect or twist the electric cables coming out of the boiler
even when it is disconnected from the main power supply
Avoid covering or reducing the size of ventilation openings of the installation
room
Do not leave inflammable containers and substances in the installation
room
Keep packaging materials out of reach of children.
2 - BOILER DESCRIPTION
MYNUTE J R.S.I. is a C-type wall-mounted boiler that can function in various
modes:
MODE A - heating only. The boiler does not supply domestic hot water.
MODE B - heating only, with the connection of an external storage tank (managed
by a thermostat) for supplying domestic hot water.
The boiler is classified in categories C12, C22, C32, C42, C52, C62, C82 C12x,
C32x, C42x, C52x, C62x, C82x.
In configuration C, the appliance can be installed in any type of room and there
are no limitations due to ventilation conditions or room volume.
3 - INSTALLATION REGULATIONS
Installation must be carried out by qualified personnel.
Always comply with national and local regulations.
POSITION
Mynute J R.S.I. can be installed indoors (fig. 2).
The boiler has protection that guarantees correct operation with a temperature
range from 0 °C to 60 °C.
To take advantage of protections, the appliance must be able to start up, since
any lockout condition (for example, absence of gas or electrical supply, or safety
intervention) deactivates the protections.
MINIMUM DISTANCES
In order to have access to the boiler to perform regular maintenance operations,
respect the minimum spaces foreseen for installation (fig. 3).
For correct appliance positioning:
- do not place it on a cooker or other cooking device
- do not leave inflammable products in the room where the boiler is installed
- heat sensitive walls (for example, wooden walls) must be protected with proper
insulation.
IMPORTANT
Before installation, wash every system piping carefully in order to remove any
residues that may impair the operation of the appliance.
Under the safety valve, install a water collecting funnel with the corresponding
discharge in the event of leaks due to the overpressure of the heating system.
The domestic hot water circuit does not need a safety valve, but make sure that
the pressure of waterworks does not exceed 6 bar. In case of doubts, install a
pressure reducer.
Prior to ignition, make sure that the boiler is designed to operate with the
gas available; this can be checked by the message on the packaging and
the adhesive label indicating the gas type.
It is very important to highlight that in some cases the smoke pipes are under
pressure and therefore, the connections of several elements must be airtight.
ANTI-FREEZE SYSTEM
The boiler is fitted as standard with an automatic anti-freeze system that activates
when the temperature of the water in the primary circuit falls below 6 °C. This sys-
tem is always active, guaranteeing boiler protection to an outdoor temperature level
of -3 °C. To take advantage of this protection (based on burner operation), the boiler
must be able to switch itself on; any lockout condition (e.g. lack of gas/electricity
supply, or safety device intervention) therefore deactivates the protection.
The anti-freeze protection is also active when the boiler is on standby.
In normal operation conditions, the boiler can protect itself against freezing. If the
machine is left unpowered for long periods in areas where temperatures may fall
below 0 °C, and you do not want to drain the heating system, you are advised
to add a specific, good quality anti-freeze liquid to the primary circuit. Carefully
follow the manufacturer's instructions with regards not only the percentage of
anti-freeze liquid to be used for the minimum temperature at which you want to
keep the machine circuit, but also the duration and disposal of the liquid itself.
For the domestic hot water part, we recommend you drain the circuit. The boiler
component materials are resistant to ethylene glycol based anti-freeze liquids.
3.2 Securing the boiler to the wall and hydraulic connections
- Position the cardboard template on the wall (use the paper one, if present)
- Mark the upper holes (ø 6mm for fixing the metal crossbar, or ø 8mm for the
boiler support wall plugs)
MYNUTE J R.S.I.
3