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GENERAL
The PRESTIGE boiler is a room-sealed boiler. The boiler has an
aluminum heat exchanger, which is mounted in the room-sealed
jacket.
When there is heat-request, the electronic control will activate the
pump, fan and the burner.
The combustion air will be aspirated by the fan trough the air-supply
ducts from outside. The air is sucked into a venturi, which creates a
vacuum.
This vacuum is a size for the amount of air, which is being aspirated,
and this signal is transmitted through an internal channel to the gas
valve.
The gas valve will then automatically supply the exact amount of
gas, which is injected into the venturi and mixed with the air. This
mixture is supplied to the burner. Ignition and ionization-control is
done by means of an electrode, which is mounted underneath the
burner.
Temperature- and safety-control is performed by means of NTC’s.
The information of these sensors is processed by the electronic
control, which also secures general functioning and safety of the
boiler.
FUNCTIONING OF DOMESTIC HOT WATER
With separate hot water tank
Heat-request for DHW has always priority above CH.
In case a hot water tank with a thermostat is connected to the
boiler, heat-request for DHW is generated by the switch of this
thermostat. This thermostat then also determines the hysteresis. If the
duration of the heat-request is long enough, the flow-temperature
will arrive at the set-value. If the flow-temperature exceeds this
set-value, the boiler will switch off.
In case a hot water tank with a NTC is connected to the boiler, The
NTC will control the heat-request for DHW, witch is settable between
10 to 60 °C.
FUNCTIONING OF CENTRAL HEATING
Room thermostat
On heat-request of the room-thermostat (and absence of DHW-
request), the 3-way-valve will be activated immediately. During the
change of the position of the 3- way-valve (15 seconds) the pump is
not activated. After this the pump is activated and the control will set
the modulating burner to arrive at the flow-temperature setting.
This flow-set-value can be adjusted; the standard setting is 75 °C. In
case an out-door sensor has been connected, the flow-set-value is
automatically adjusted according the heating curve which is
standard foreseen in the electronic control.
Out-door sensor
The boiler can also be controlled by means of an out-door sensor.
This sensor with installation prescription can be ordered separately.
This control is easy to use and can be programmed for all heating
situations. For more information take contact with our local
distributor.
MOUNTING BOILER
The boiler should be installed in accordance with all the local and
regional regulations.
1.
The boiler has to be installed in an appropriate place.
Make sure this place is free of any risk of frost.
2.
Mount the bracket horizontally to a flat surface. Maintain at least
10 cm space to the left and right side of the boiler to enable
maintenance of the boiler.
3.
Hang the boiler onto the bracket on the wall.
4.
Remove the protective caps from the tubes. Be careful!
It is possible that dirty water comes out of the tubes.
5.
Fill the siphon with fresh water.
CIRCUIT CONNECTIONS
1.
The pump is integrated in the appliance and has a switch with 3
positions to adjust the performance of the pump. Set this switch
to the need of the installation.
2.
Mount the separate automatic purge on top of the boiler.
3.
Flush the entire installation thoroughly with fresh water.
4.
Mount a fill and drain tap on a suitable position in the installation.
5.
Fill the installation with clean, fresh water. The pH must be
between 4 and 8,5. It is not allowed to add any chemicals
(e.g. anti-freeze) to this water.
6.
The connections for central heating are 5/4” conical thread.
7.
The connection for gas is 3/4” conics thread.
8.
A pressure relief valve and an expansion vessel have to be
foreseen in the installation, near the boiler. Make sure the
expansion vessel has enough capacity for the installation.
9.
Discharge the condensate via a funnel and a siphon to the
sewer.
10. In case an extra pump is mounted in the installation, make sure
this additional pump does not cause any pressure difference
over the boiler.
11. A purge device has to be foreseen at the highest point in the
installation.
12. Mount the exhaust pipes in such a way that any condensate built
in these tubes will drain towards the boiler.
GAS CONNECTION
1.
The gas connection must be the actual regulations.
2.
Check the gas pipe for any dirt, in order to prevent malfunctioning
of gas controls of the boiler.
3.
Maximum pressure for the gas valve is 50 mbar.
4.
Check the load of the boiler.
AIR + FLUEGAS DUCTS
Exhaust Connection
Application possibilities
The possible applications are drawn in figure…
The boiler is approved for categories B23 B33 C13x C33x C43x
C53x C63x C83x
It is possible to combine the air supply and flue gas exhaust with
other appliances. The design of such a combination has to be approved
in advance by the local gas authorities (so before actually mounting
the boiler)
Mount the exhaust pipes in such a way that any condensate built in
these tubes will drain towards the boiler.
FUNCTIONING
INSTALLATION
