Beretta 30 B.S.I. Manual De Instalacion Y Uso página 5

F - Support plate
G - Pre-installation template
If water hardness exceeds 28°Fr, it is recommended to use water
softeners, to prevent any limestone deposit in boiler due to
excessively hard water.
4
INSTALLING THE EXTERNAL PROBE
.
The correct position of the external probe is essential for the
climatic control function to run properly.
The probe must be installed outside the building to be heated, at
about 2/3 of the height of the NORTHERN or NORTHWESTERN
face, far from flue pipes, doors, windows and sunny areas.
Attaching the external probe to the wall (fig. 4)
- To access the terminal board and anchor holes, unscrew the
plastic probe cover from the housing by rotating it anticlockwise
- Mark the points where the holes will be drilled using the probe
housing as a template
- Remove the box and drill holes for 5x25 expansion grips
- Fix the housing to the wall using the two supplied expansion
grips
- Unscrew the cable-holding nut, insert the bipolar cable (with a
cross section between 0,5 and 1mm
connection between the probe and the boiler
- For the electrical connection between the external probe and
the boiler, refer to the chapter "Electric connection"
- Tighten the cable-holding nut properly and close the cover of
the protective box.
The probe must be positioned on a smooth surface. In the
case of a brick wall or a wall with an irregular surface, provision
must be made for a smooth contact surface.
The maximum length of the connection between the external
probe and the boiler is 30 m.
The connection cable between the probe and the boiler must
not have connections. If these prove to be necessary, they
must be made watertight and suitably protected.
Any ducts for the connection cable must be separate from
other power lines (230 V.a.C.).
5
.
The outlet collector (A, fig. 5) collects: the condensate water, any
evacuation water from the safety valve and the system outlet water.
The collector must be connected, by means of a rubber pipe,
to a suitable collection and evacuation system in the storm
water outlet and in compliance with current regulations.
The external diameter of the collector is 20 mm: we therefore
suggest using an Ø18-19 mm pipe, to be closed with a suitable
clamp (not supplied).
The manufacturer is not responsible for any damage caused
by the lack of a collection system.
The outlet connection line must have a guaranteed seal.
The manufacturer of the boiler is not responsible for any
flooding caused by interventions of the safety valve.
6.
Before connecting appliance to gas pipe network, check the
following:
• regulations in force are met
• gas type used is the same as set for appliance operation
• pipes are clean.
After installation make sure that all the joints have been made
airtight conforming to standard installation practices.
Gas must be piped externally. If the pipe goes through a wall it
must go through the central opening in the lower part of the
template. It is recommended to install an appropriately sized filter
on the gas line in case gas from the mains contains some small
solid particles.
2 , not supplied) for the
CONDENSATE COLLECTION
GAS CONNECTION
7.
To access the electrical connections, proceed as follows:
- loosen the fixing screws (A) and remove the shell (fig. 3)
- lift up the panel and turn it forwards
- open the terminal board covers making them slide in the direction
of the arrows (fig. 6: B high voltage connections 230 V, C low
voltage connections).
Connect the appliance to the mains electricity supply with a switch
featuring a distance of at least 3,5 mm (EN 60335-1, category III)
between each wire. The appliance uses alternating current at 230
Volt/50 Hz, has a power input of 150W and complies with EN
60335-1. The appliance must be connected to an efficient earth
circuit, according to current legislation and bylaws.
Live and neutral (L-N) connections should also be respected.
The boiler can operate with phase-neutral or phase-phase power
supply. For floating power supply, without an earth-bonded
conductor, it is necessary to use an insulation transformer with
secondary anchored to ground.
The earth conductor must be a couple of cm longer than the
others.
Gas and/or water pipes may not be used to earth electrical
equipment.
The installer is responsible for making sure that the appliance
has an adequate earthing system; the manufacturer shall not
be held liable for eventual damages caused by incorrect usage
or failing to earth the boiler.
Use the supplied power cable to connect the boiler to the mains
power supply.
Connect the ambient thermostat and/or time clock as shown in the
electrical diagram on page 114.
When replacing the power cable, use a HAR H05V2V2-F cable,
3 x 0,75 mm 2 , Ø max. external 7 mm.
8.
FILLING THE SYSTEMS, ELIMINATING THE
AIR AND EMPTYING THE SYSTEMS
The systems can be filled up once the water mains have been
connected up.
This must be done while the installation is cold by:
DHW system (fig. 7)
- open the cold water stopcock (H) to fill up the water tank
- open the hot water to check the water tank filled up and wait until
the water discharge
Heating system (fig. 7)
- making sure that the drain valve (B) is closed
- giving two or three turns to the cap of the automatic air vent
valve (C) to open it
- opening the filling stopcock (I) until the pressure measured by
the hydrometer (D) is about 1,5 bar (blue zone)
- open the manual vent valve (E) and close it again once the
system has been vented; if necessary, repeat this operation until
no more air leaves the valve (E)
- close the filling stopcock (I)
- each time the electricity supply to the boiler is switched on, an
automatic vent cycle lasting about 2 minutes starts, and the
display reads "SF", and the "functions selectors"
sequence. Press the
venting cycle.
NOTE: air extraction from the boiler takes place automatically,
through two automatic bleeding valves, C and F.
NOTE: the boiler is also equipped with a semi-automatic filling
system. The first system-filling operation must be carried out by
opening tap I with the boiler turned off.
CH system emptying (fig. 7)
Before starting to empty it, remove the electrical feeder by
positioning the general switch for the system on "off".
- Close the interception devices for the thermal system
- Open the automatic air vent valve (C)
- Unscrew the drain valve (B) by hand, keeping the elbow on the
hose in position to prevent it coming out of its seating
- The water from the system is discharged through the outlet
collector (A)
- Emptying out the lowest parts of the system.
5
ELECTRIC CONNECTION
light up in
button to interrupt the automatic