JUNIOR C.A.I.
3
In some parts of the manual, some symbols are used:
WARNING = for actions requiring special care and adequate
preparation
FORBIDDEN = for actions THAT MUST NOT be performed
INSTALLER
EN
1 - GENERAL SAFETY DEVICES
Our boilers are built in our plants and checked down to the smallest
detail 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.
This boiler may only be installed and serviced by qualified personnel
who comply with the national and local current regulations according
to local standards and subsequent updates.
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 con
-
ditions 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.
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 em-
ploying procedures or methods which may damage the environment.
The ventilation openings are vital for correct combustion.
- in the event of water leaks, the water supply must be shut off and the Techni
-
cal 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 As
-
sistance Service immediately.
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
supply by turning “OFF” the two position system switch and the main
control panel switch.
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 instal-
lation room.
Do not leave inflammable containers and substances in the installation room.
Keep packaging materials out of reach of children.
Do not cover or reduce the size of the ventilation openings in the room
where the boiler is installed. The ventilation openings are vital for correct
combustion.
2 -
BOILER DESCRIPTION
Junior 24-28 C.A.I.
is a wall-mounted type B11BS boiler for heating and the
production of domestic hot water: This type of appliance cannot be installed
in bedrooms, bathrooms or showers, or in rooms with open flues without
adequate ventilation.
3 - INSTALLATION REGULATIONS
LInstallation must be carried out by qualified personnel.
Always comply with national and local regulations.
POSITION
Class
B
appliances cannot be installed in bedrooms, bathrooms or showers,
or in rooms with open flues without adequate ventilation. It is imperative that
the room in which a gas appliance is installed has a sufficient inflow of air to
supply the quantity of air necessary for normal combustion and ensure proper
ventilation of the room itself. Natural direct ventilation with external air must
be provided for via
- permanent openings in the walls of the room in which the appliance is
installed leading outdoors. These openings must be made in such a way
as to ensure that the orifices on both the internal and external side of the
wall cannot be obstructed or be reduced in effective diameter, the orifices
themselves must be protected with metal grilles or similar means and must
be situated near floor level and in a location that does not interfere with the
function of the flue exhaust system (where this position is not possible, the
diameter of the ventilation openings must be increased by at least 50%),
- while single or multiple branched the ventilation ducts may be used. The
ventilation air must be sourced directly from outside the building, away from
sources of pollution. Indirect ventilation, with air drawn from rooms next to
the room in which the appliance is installed, is permitted, provided that the
limitations indicated by current local regulations. The room in which the
boiler is to be installed must be adequately ventilated in compliance with
applicable legislation. Detailed prescriptions for the installation of the flue,
gas piping and ventilation ducting are given in current local regulations. The
aforementioned regulations also prohibit the installation of electric fans and
extractors in the room in which the appliance is installed. The boiler must
have a fixed outward leading exhaust duct with a diameter not smaller than
the exhaust hood collar. Before fitting the exhaust outlet connector to the
flue, check that the flue has adequate draught and has no restrictions and
that the exhausts of no other appliances are connected to the same flue
pipe. When connecting to a pre-existing flue pipe, check that the latter is
perfectly clean, as deposits may detach from the wall of the pipe during use
and obstruct the passage of the flue gases, creating a situation of severe
danger for the user.
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.
