Residence Condens IS n
6
therefore the use of an appliance of higher performance or total
softening is recommended; even with a total hardness of less
than 25° F, a filter of appropriate size must be installed if the wa-
ter comes from the mains that is not perfectly clean/cleanable.
DISCHARGE MANIFOLD (fig. 8)
The discharge manifold collects the condensate water, any evacu-
ation water from the safety valve and the system discharge water.
The manifold must be connected via the provided rubber pipe
to an appropriate collection and evacuation system in the white
water discharge drain in compliance with current regulations.
The hose should be secured to the manifold with an appropri-
ate tie (not supplied with the standard equipment).
The manufacturer is not liable for any damage/flooding result-
ing from the failure to channel the condensate.
Sealing of the condensate drainage connection line must be
guaranteed.
3.5
Installing the external probe (fig. 9)
The correct operation of the external probe (supplied as an accesso-
ry) is fundamental for good climatic control operation.
INSTALLING AND CONNECTING THE EXTERNAL PROBE
The probe (supplied as an accessory) must be installed on an external
wall of the building to be heated, observing the following indications:
- It must be mounted on the side of the building most often exposed
to winds (the NORTH or NORTHWEST facing wall), avoiding direct
solar irradiation;
- It must be mounted about 2/3 of the way up the wall;
- It must not be mounted near doors, windows, air outlet points, or
near smoke pipes or other heat sources.
The electrical wiring to the external probe is made with a bipolar ca-
ble with a section from 0.5 to 1mm
2
(not supplied), with a maximum
length of 30 metres. It is not necessary to respect the polarity of the
cable when connecting it to the external probe. Avoid making any
joints on this cable however; if joints are absolutely necessary, they
must be watertight and well protected.
Any ducting of the connection cable must be separated from live ca-
bles (230V AC).
FIXING THE EXTERNAL PROBE TO THE WALL
The probe (supplied as accessory) must be fixed on a smooth part of
the wall; in the case of exposed brickwork or an uneven wall, look for
the smoothest possible area.
Loosen the plastic upper protective cover by turning it anticlockwise.
After deciding on the best fixing area of the wall, drill the holes for the
5x25 wall plug.
Insert the plug in the hole. Remove the card from its seat. Fix the box
to the wall, using the screw supplied. Attach the bracket, then tighten
the screw.
Loosen the nut of the cable grommet, then insert the probe connec-
tion cable and connect it to the electric clamp.
To make the electrical connection between the external probe and
the boiler, refer to the “Electrical wiring” chapter.
Remember to close the cable grommet well, to prevent any air
humidity getting in through the opening.
Put the board back in its seat.
Close the plastic upper protective cover by turning it clockwise.
Tighten the cable grommet very well.
3.6
Gas connection
The connection of boiler to the gas supply must be carried out in the
respect of current installation standards.
Before carrying out the connection, it is necessary to ensure that:
- The gas type is suitable for the appliance
- The piping is thoroughly clean.
The gas feeding system must be adapted to the boiler output
and must be equipped with all the safety and control devices
prescribed by the current standards. the use of a filter of ade-
quate dimensions is recommended.
Once the installation is done, check that the junctions carried
out are sealed.
3.7
Electrical connection (fig. 10-11-12-13-14)
To access the electrical wirings, proceed as follows:
To access the terminal board:
- Set the main system switch to OFF
- Unscrew the fixing screws (C) of the connections cover
- Take out the connections cover by pulling it towards you (A-B)
- Undo the fixing screws (D) of the shell.
- Move the housing base forwards and then upwards to unhook it
from the frame.
- Undo the fixing screws E of the control panel.
- Disconnect the control panel and then rotate it forward.
- Press the retention hooks (F) with your thumbs and lift the lid with
your index fingers pressing on the side walls.
The connection to the mains supply must be made via a separation
device with an omnipolar opening of at least 3.5 mm (EN 60335/1 -
category 3).
The appliance operates with an alternating current and compliant
with the EN 60335-1 standard.
It is obligatory to make the connection with a safe ground/earth,
in compliance with current directives.
The installer is responsible for ensuring the appliance is suita-
bly earthed; the manufacturer will not be liable for any damage
resulting from an incorrect or absent earth connection.
It is also advisable to respect the phase-neutral connection
(L-N).
The earth conductor must be a couple of cm longer than the
others.
The boiler can operate with a phase-neutral or phase-phase supply.
For power supplies that are not earthed, it is necessary to use an
isolating transformer with earth-anchored secondary.
It is forbidden to use gas and/or water pipes to earth electrical ap-
pliances.
Use the power cable supplied to connect the boiler to the mains pow-
er supply.
If replacing the power supply cable, use a HAR H05V2V2-F type ca-
ble, 3 x 0.75 mm², Ø max external 7 mm.
3.8
System loading and emptying
Once the hydraulic connections have been carried out, fill the system.
FILLING (fig. 15-17)
- Open the plug of the lower automatic air vent valve (A) by two or
three turns to allow a continuous vent of the air; leave the plug of
valve A open
- Open the filling tap outside the boiler and wait until the pressure
indicated by the hydrometer is between 1 bar and 1.5 bar.
- Carefully close the outside filling tap.
NOTE: The deareation of the boiler occurs automatically through the
two automatic air valves A and B, the first on the circulator and the
second inside the air distribution box.
EMPTYING (fig. 15)
- Before starting emptying, switch off the electrical supply by turning
off the system's main switch
- Close the external cold water inlet tap
- Close the shut-off devices of the heating system
- Manually loosen the system drain valve (C)
- The water is discharged through the discharge manifold (D) - for
details refer to paragraph "Discharge manifold"
3.9
Eliminating the air from the heating circuit and boiler
(fig. 15)
During the initial installation phase, or in the event of extraordinary
maintenance, you are advised to perform the following sequence of
operations:
1. Open the lower automatic air vent valve cap (A) and leave it open.
2. Turn on the system filling tap.
3. Switch on the electricity supply to the boiler, leaving the gas tap
turned off.
4. Activate a heat request via the ambient thermostat or the remote
control panel, so that the 3-way valve goes into heating mode.
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