Beretta Exclusive GREEN HE R.S.I. Series Installer And User Manual page 5

3 - HYDRAULIC CONNECTIONS
Position and dimensions of hydraulic connections are specified in figure 1.1:
3/4"
A - CH return
3/4"
B - CH delivery
C - Gas connection 3/4"
D - DHWoutlet (CSI) ½"
E – DHW inlet (CSI) ½"
F - Support plate
G - Pre-installation template
4 - IF INSTALLING AN EXTERNAL Thermoregulation Sensor
The sensor (FIG. 1.6) MUST BE INSTALLED ON AN EXTERNAL WALL of the building
while taking care to comply with the instructions below:
- It must be fitted on the facade most often exposed to wind, on a wall facing
South or South west (southern Hemisphere).
- It must be fitted about 2/3 up the height of the façade.
- It must not be near any doors, windows, outlets for air ducts, or near
chimneys or other heat sources.
The electrical connection to the external sensor must be formed using a two-
pole cable (not supplied), with a cross-section of 0,5 to 1 mm
length of 30 metres. It is not necessary to worry about the polarity of the cable
for the connection to the external sensor. Do not form joints in this cable.
If a joint has to be made it must be watertight and adequately protected.
Any conduit used for the connection cable must be separate from the
conduits used for the power cables (230 Vac).
WALL MOUNTING OF THE EXTERNAL SENSOR.
Install the probe in an area of smooth wall; for brick walls or other irregular
surfaces, prepare a smooth contact area if at all possible.
Remove the upper plastic cover by turning it anti-clockwise.
Identify the wall fixing point and drill a hole for the 5x25 expansion grip.
Insert the expansion grip into the hole.
Remove the card from its housing.
& fix to the wkll using the screw supplied
Attach the bracket and tighten the screw.
Loosen the cable grommet screw, push in the probe connection cable and
connect it to the electrical terminal.
Remember to firmly secure the cable grommet to prevent humidity from
entering.
Put the card back into its housing. Close the upper plastic cover by turning
clockwise , firmly secure the cable grommet
5 - CONDENSATE COLLECTION TRAP
collects the condensate water any evacuation water , the
The outlet collector A (FIG. 1.7)
water from the safety valve and the system drain outlet water.
The collector must be connected, by means of a discharge pipe (not
sup- plied), to a suitable drain.
The external diameter of the collector hose is 20 mm: we therefore
suggest using an Ø 18-19 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 - GAS CONNECTION
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.
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. After installation make sure that all the
joints have been made airtight conforming to standard installation practices.
7 - ELECTRIC CONNECTION
To access the electrical connections, proceed as follows:
- unscrew the lower cover fixing screw C, (FIG. 1.4)
- pull the cover towards you and remove (A-B) (FIG. 1.5)
- loosen the fixing screws (D) and remove the shell (FIG. 1.2)
- lift up the panel and turn it forwards
- open the terminal board covers making them slide in the direction of the
arrows (FIG. 1.8: E high voltage connections 230 V, F low voltage connec-
tions, G water tank sensor connections only ( R.S.I.).
Connect the appliance to the mains power 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 88 w (25KW CSI.- 25KW RSI).) & 116 w (35KW RSI. - 35KW CSI)
and complies with EN 60335-1 standard. Connect the boiler to a safe earth
circuit according to current legislation.
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.
2 and a maximum
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 earth 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
diagrams.
When replacing the power cable, use a HAR H05V2V2-F cable, 3 x 0,75
mm 2 , Ø max. external 7 mm.
8 - FILLING AND EMPTYING THE SYSTEM
The central heating system can be filled up once the water mains have been
connected.
This must be done while the installation is cold by:
- Turn the caps of the lower (A) and upper (E) automatic bleed valves two
or three turns; leave A and E valve caps open for continual air venting
(FIG. 1.9);
- Making sure the cold water inlet tap is open
- Opening the filling tap (B, on the boiler for until the pressure on the
gauge (C) is between 1 and 1,5 Bar (BLUE ZONE) (FIG. 1.9).
Close the filling tap after filling.
The boiler is equipped with an efficient air separator so that there is no need
to do anything manually.
The burner only ignites when air venting has finished.
NOTE: air extraction from the boiler takes place automatically, through two
automatic bleeding valves, A and E.
The first is situated on the pump, while the second is inside the air chamber.
NOTE the boiler is also equipped with a semi-automatic filling system. The
first system-filling operation must be carried out by opening tap B with the
boiler turned off.
Emptying
Before starting to empty the boiler, isolate power switch for the system (off)
Close the isolation devices for the thermal system
- Loosen the system outlet valve (D) manually
- The water from the system is discharged through the outlet collector (F).
DHW system emptying (C.S.I. Combi only)
:
- turn off the tap at the mains cold inlet
- turn on all the hot and cold taps
- empty out the lowest parts of the system.
ENGLISH
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