Ariston CLAS B 28 FF, Installation And Service Instructions Manual

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40
commissioning
Ignition procedure
Press the ON/OFF button on the control panel to switch on the boiler.
The display shows:
gures marked
out on the diagram above.
gure indicates the operating mode:
0 XX - Stand-by
C XX - Central heating request
c XX - Heating post-circulation
d XX - Domestic hot water request
b XX - Storage request
h XX - hot water post-circulation
F XX - circulation pump anti-freeze protection enabled
- burner anti-freeze protection enabled
gures indicate:
- ow temperature when no heating requests have been made
ow temperature in central heating mode
- the temperature of the hot water in domestic hot water
ow temperature in anti-freeze mode.
The carrying out of certain functions is shown:
P1
- = Deaeration cycle started
Initial procedures
To guarantee safety and the correct operation of the appliance, the
ed technician who
possesses the skills which are required by law.
Electricity supply
- Check that the voltage and frequency of the electricity supply
correspond to the data shown on the boiler data plate;
cient.
Filling the hydraulic circuit
Proceed in the following manner:
- Open cold water inlet tap;
- Lift the cap on the automatic air relief valve on the circulation
pump;
- Gradually open the valve under the boiler
- Open each air release tap starting with the lowest point and close it only
when clear water, free of air, is visible.
- Clause the valve under the boiler when at least 1 bar registers on
the pressure gauge.
Gas supply
Proceed in the following manner:
- make sure that the main gas supply uses the same type of gas as
indicated on the boiler data plate;
- Open all doors and windows;
ames in the room;
valve
inside the boiler itself which should be closed and then opened
while the gas valve is disabled. The meter must not show any signs
of gas being used for 10 minutes.
First ignition
1. Make sure that:
- The gas valve is closed;
- The electrical connection has been properly carried out.
Make sure that, in any case, the green/yellow earthing wire is
cient earthing system;
- Use a screwdriver to lift the cap on the automatic air relief valve;
- the system pressure is at least 1 bar on the pressure gauge
- Switch on the boiler (by pressing the ON/OFF button) and select
the standby mode, where no hot water or heating requests are
made.
- Start the deaeration cycle by pressing E
SC
for 5 seconds
The boiler will start a deaeration cycle lasting about 7 minutes. If
you need to stop it press E
SC
.
- At the end, check that the system is completely deaerated and,
if not, repeat the procedure.
- Bleed the air from the radiators;
- The exhaust duct for combustion products should be suitable
and free from any obstructions;
- Any necessary ventilation inlets in the room should be open
(type B installation).
2. Open the gas valve and check the connection seals, including
the boiler connection seals, making sure that the meter does not
detect any passage of gas. Eliminate any leaks.
3. Start the boiler by selecting the heating or domestic hot water
operation.
Deaeration cycle
lling stage or if there is excess air in the system, the
deaeration cycle can be activated by holding the E
SC
button for 5
seconds. The boiler will start a cycle which lasts approximately 7 minutes.
When this is complete the menu screen will be restored. The cycle may
either be repeated, if necessary, or stopped by pressing E
SC
. Press the E
SC
button until the normal display screen is restored.