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COMMISSIONING AND MAINTENANCE
COMMISSIONING THE SYSTEM
- Slowly fill the tank and drain it by opening a hot water tap. Drain
all the taps and check that there are no leaks in the domestic
hot water system.
- Fill the whole system up to a minimum pressure of 1 bar
(preferably 1.5 bar), using the boiler's fill valve. Fill the system
slowly and drain it using the central heating flow pipe manual
air vent. Also check that the automatic air vent (AquaSpeed)
on the tank is working. Check that there are no leaks in the
central heating system.
Prestige excellence: purge the primary circuit of the tank by
means of the manual air vent on the top of the tank.
- Purge the circulator(s)
- Open the gas valve, drain the pipe and check that there are no
leaks in the system.
- Check that the siphon is filled.
- Connect the plug to the wall socket and power on the appli-
ance. If needed, place the room thermostat to its highest
position. The boiler should start. Check the gas pressure and
allow the boiler to heat up for a few minutes. Set the boiler
to High Power mode and check the CO
. Then, set the boiler to Low Power
of Technical Characteristics)
mode and check the CO2 level again
.
Characteristics)
- Set the central heating and hot water temperatures following
the values given in the Directions for Use.
- Drain the central heating system again and, if necessary, re-fill it.
- Make sure the central heating system is correctly balanced
and, if necessary, adjust the valves to prevent a greater or
lesser flow than planned to some circuits or radiators.
CHECKING THE SETTINGS
- Check that the parameters are set in accordance with the
user's needs: see page 3, Directions for Use.
- Check the boiler settings: this task can only be carried out by an
ACV-trained installer or by the ACV maintenance department.
- Set the appliance to High Power mode by simultaneously pressing
the mode and Plus keys.
- Check the dynamic gas pressure at the gas valve
. This must be at least 18 mbars.
below, ref. 1)
Wait a few minutes for the appliance to heat up to a minimum
temperature of 60°C. Check the CO
ment instrument. Please see in the Technical Characteristics
for optimum value. To increase the CO
screw counterclockwise; turn it clockwise to reduce the value
(see diagram below ref. 2).
Then put the appliance to High Power mode by simultaneously
pressing the mode and Plus keys. Wait a few minutes to stabilise.
Check the CO
value. It should be either equal to the full power
2
value or a maximum of 0.5% less than this value. If you record
2
1
level
(see the table
2
(see the table of Technical
(see diagram
setting using a measure-
2
value, turn the venturi
2
Ref.3
The gas valve
offset setting is
3
a sealed factory
setting.
In principle,
it may not be
modified.
EN • 23
a significant deviation,please contact the ACV maintenance
department.
INSPECTION AND MAINTENANCE
ACV recommends that you have your boilers inspected
and cleaned if need be at least once a year.
Plug out the appliance before undertaking any work, even if only
recording measurements and adjusting the settings.
- Check that the siphon is not fouled, fill it, if need be, and check
that there are no leaks.
- Check that the safety valves are operating correctly.
- Drain the whole system and if necessary re-fill the appliance to
pressure of 1.5 bar.
If you have to refill your circuit more than twice a year,
please contact your installer.
- Check the boiler charge in High Power mode. If there is a big
difference between this value and the original setting, the devia-
tion could mean a blockage in the air intake pipes or flue gas
extraction pipes, or that the exchanger has become fouled with
an accumulation of dirt.
- AquaSpeed: Check the domestic hot water flow and the
temperature. These values could indicate a poorly regulated
flow limiter
or, in areas where the water is very
(new setting)
hard, gradual scale formation in the exchanger. To clean the
AquaSpeed minitank with chemicals, you can connect the
descaling pump directly to the hot and cold water connection.
Follow the manufacturer's instructions for using the descaler
and the descaling product or contact your ACV distributor for
more information.
X 2
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