Ariston CLAS ONE R 24 - Ignition Procedure and First Ignition

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COMMISSIONING
Ignition procedure
Press the ON/OFF button on the control panel to switch on the
boiler. The display shows:
● the operating mode:
winter
● The gures indicate:
-
the ow temperature when no heating requests have been made
- the ow temperature in central heating mode
- the temperature of the hot water set in domestic hot water
The carrying out of certain functions is shown:
Deaeration cycle started
Centrl Heating Post-circulation
Electricity supply
- Check that the voltage and frequency of the electricity supply
correspond to the data shown on the boiler data plate;
- Make sure that the earthing connection is efcient.
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 connected to an efcient earthing system;
- Use a screwdriver to lift the cap on the automatic air relief
valve;
- Switch on the boiler (by pressing the ON/OFF button) and use
the
Mode button to select the standby mode, where no hot
water or heating requests are made.
-- Bleed the air from the system;
- 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).
- Check whether the condense trap contains water; if not, it
must be relled. If necessary, open the manual air vent on
the main exchanger until complete lling.
N.B.: if the boiler will not be used for long periods, the
trap should be lled before the boiler is started up again.
It is dangerous not to rell the siphon as fumes may be
released into the environment.
2. Open the gas cock and check the connection seals, including
the boiler connection joints, 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 using the
Mode button.