Ariston CLAS ONE R 15, CLAS ONE R 24 - GAS BOILER Manual

SAFETY REGULATIONS

If you smell gas or are worried about gas safety, you can call the National Gas Emergency Service free on
0800 111 999
at any time, day or night.

Key to symbols:

Failure to comply with this warning implies the risk of personal injury, in some circumstances even fatal

Failure to comply with this warning implies the risk of damage, in some circumstances even serious, to property, plants or animals.

Do not perform operations which involve opening the appliance.

• Electrocution from live components. Personal injury caused by burns due to overheated components, or wounds caused by sharp edges or protrusions.
  Do not perform operations which involve removing the appliance from its installation space.
• Electrocution from live components. Flooding caused by water leaking from disconnected piping.

Explosions, fires or intoxication caused by gas leaking from disconnected piping.

• Do not damage the power supply cable.
  Electrocution from live uninsulated wires.
• Do not leave anything on top of the appliance.
  Personal injury caused by an object falling off the appliance as a result of vibrations.

Damage to the appliance or items underneath it caused by the object falling off as a result of vibrations.

• Do not climb onto the appliance.
  Personal injury caused by the appliance falling.
  Damage to the appliance or any objects underneath it caused by the appliance falling away from its installation space.
• Do not climb onto chairs, stools, ladders or unstable supports to clean the appliance.
  Personal injury caused by falling from a height or cuts (stepladders shutting accidentally).
• Do not attempt to clean the appliance without first switching it off and turning the external switch to the OFF position.
  Electrocution from live components.

• Do not use insecticides, solvents or aggressive detergents to clean the appliance.
  Damage to plastic and painted parts.
• Do not use the appliance for any use other than normal domestic use.
  Damage to the appliance caused by operation overload.
  Damage caused to objects treated inappropriately.
• Do not allow children or inexperienced individuals to operate the appliance.
  Damage to the appliance caused by improper use.

• If you detect a smell of burning or smoke coming from the appliance, disconnect it from the electricity supply, turn off the main gas valve, open all windows and call for assistance.
  Personal injury caused by burns, smoke inhalation, intoxication.
• If there is a strong smell of gas, turn off the main gas valve, open all windows and call for assistance.
  Explosions, fires or intoxication.
• This appliance can be used by children aged from 8 years and above and person with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

THE INSTALLATION AND FIRST IGNITION OF THE BOILER MUST BE PERFORMED BY QUALIFIED GAS SAFE REGISTERED ENGINEER IN COMPLIANCE WITH GAS SAFETY (INSTILLATION & USE) REGULATIONS AND ALL OTHER NATIONAL REGULATIONS REGARDING INSTALLATION, AND IN CONFORMITY WITH ANY REQUIREMENTS ESTABLISHED BY LOCAL AUTHORITIES AND PUBLIC HEALTH ORGANISATIONS.

AFTER THE BOILER HAS BEEN INSTALLED, THE INSTALLER MUST ENSURE THAT THE END USER RECEIVES THE DECLARATION OF CONFORMITY AND THE OPERATING MANUAL, AND SHOULD PROVIDE ALL NECESSARY INFORMATION AS TO HOW THE BOILER AND THE SAFETY DEVICES SHOULD BE HANDLED.

This appliance is designed to produce hot water for domestic use (combi version).
It should be connected to a heating system and a distribution network for domestic hot water, both of which must be compatible with its performance and power levels. The use of the appliance for purposes other than those specified is strictly forbidden. The manufacturer cannot be held responsible for any damage caused by improper, incorrect and unreasonable use of the appliance or by the failure to comply with the instructions given in this manual. Installation, maintenance and all other interventions must be carried out in full conformity with the governing legal regulations and the instructions provided by the manufacturer. Incorrect installation can harm persons, animals and possessions; the manufacturing company shall not be held responsible for any damage caused as a result. In the event of any maintenance or other structural work in the immediate vicinity of the ducts or flue gas exhaust devices and their accessories, switch the appliance off by switching the external bipolar switch to the "OFF" position and shutting off the gas valve.
When the work has been completed, ask a qualified technician to check the efficiency of the ducting and the devices. If the boiler should be out of use for a prolonged period, it is recommended that the electrical power supply be disconnected and that the external gas cock be closed. If low temperatures are expected, the boiler and system pipe work should be drained in order to prevent frost damage. Turn the boiler off and turn the external switch "OFF" to clean the exterior parts of the appliance.
Do not allow children or inexperienced persons to use the appliance without supervision.

CONTROL PANEL

Legend:

1. Display
2. Domestic Hot Water adjustment button +/- NOT ACTIVE (a)
3. MODE button (Operation mode selection summer/winter)
4. COMFORT button NOT ACTIVE
5. ON/OFF button
6. Auto button (To activate Thermoregulation)
7. RESET button
8. Heating temperature adjustment button +/- (b)

1. Pressing the buttons simultaneously allows access to the engineers menu and all parameters and settings
2. Use these buttons to modify and save the parameter settings

DISPLAY

Legend:

Digits indicating:

• boiler status
• temperature indication with bar level
• error code signals (ERROR)
• Request press RESET button (boiler block)
• menu settings

Technical assistance request

Flame detected with indication of power used

Heating operation set

Heating operation active

Hot Water Comfort activated

Boiler off with antifreeze function active

Anti-frost Function Active

AUTO function activated

High efficiency operation (low C.H. flow temperature)

Solar temperature probe connected - option

Error signals
The display shows the code

External temperature displayed (with external sensor optional)

Wi-Fi active (Kit Optional)

Initial operating procedures

Check the water pressure on the system pressure gauge and make sure that the figure is between 0.6 and1.5 bar when the system is cold.

ATTENTION
DEAERATION CYCLE
THE DEAERATION CYCLE IS AUTOMATICALLY ACTIVATED WHEN THE BOILER IS POWERED ON FOR THE FIRST TIME. THE DISPLAY SHOWS "PURGE". AT THE END OF THE FUNCTION (7 MINUTES) THE DISPLAY RETURNS TO NORMAL VIEW.

Ignition procedure

Press the ON/OFF button on the control panel to switch on the boiler

The display shows:

• the operating mode:
• the set temperature in central heating mode

Adjusting the heating

It is possible to set the temperature of the heating water by pressing the buttons 8.
The temperature that may be obtained.which varies from 20°C to 45°C (low temperature) and 35°C to 82°C (high temperature).

The ignition of the burner is indicated on the display by the symbol the dashes underneath indicate the power utilised.

Switching off the heating / Switching off the boiler

To switch off the heating, press the ON/OFF button; the display will switch off.

THE ANTI-FROST FUNCTION REMAINS ACTIVE.

ATTENTION
SWITCH OFF THE BOILER COMPLETELY BY SWITCHING THE EXTERNAL ELECTRICAL SWITCH TO THE OFF POSITION. SHUT OFF THE GAS VALVE.

Auto button - Temperature adjustment activation

The AUTO function enables boiler operation to be adapted to environmental conditions and to the type of system it is installed on.

Comfortable temperature is reached inside the room in the quickest way possible, without wasting money, energy or efficiency, while substantially reducing the amount of wear experienced by the components.

Your installer will advise you on the devices connectable to the boiler and will program it according to the system.

In normal boilers the water temperature inside the heating elements is usually set to a high value (70-80°C), thereby ensuring effective heating during the few really cold winter days. It then becomes excessive on less cold days (of which there are many) more typical of the autumn and winter seasons. This leads to excessive room heating after the thermostat has been switched off, resulting in energy waste and uncomfortable conditions inside the room. The AUTO function "takes control" of the boiler and selects the best operating regime based on environmental conditions, external devices connected to the boiler and the performance required. It constantly decides at which power level to operate based on the environmental conditions and the room temperature required.

Appliance shut-off conditions

The boiler is protected from malfunctions by means of internal checks performed by the electronic P.C.B., which stops the boiler from operating if necessary. In the event of the boiler being shut off in this manner, a code appears on the control panel display which refers to the type of shut-off and the reason behind it. Two types of shut-off may occur:

Safety shut-off

This type of error is "volatile", which means that the boiler starts up again automatically as soon as the problem which caused the shut-off is removed;
and the error code (e.g.) flash on the display and the symbol appears.

In fact, soon as the cause of the shut-off disappears, the boiler starts up again and continues to operate normally.
If the boiler still indicates a safety shut-off, switch it off. Make sure the external electric switch is in the OFF position, shut off the gas valve and contact a qualified technician.

Operation shutdown

This type of error is "non-volatile", which means that it is not removed automatically.

On the display flash and the error code, e.g. Err/501 and appears the symbol .
In this case the boiler does not restart automatically, but it may be reset by pressing the button.
If the problem manifests itself again after several attempts to reset the appliance, contact a qualified technician.

If this shutdown occurs frequently, contact an authorised service centre for assistance. For safety reasons, the boiler will allow a maximum of 5 reset operations to take place in 15 minutes (individual presses of the button). If the shutdown is occasional or an isolated event, this is not Necessarily a problem.

Operation shutdown error table

Anti-frost Device

The anti-frost function acts on the central heating flow temperature probe, independently from other settings, when the electrical supply is turned on.
If the primary circuit temperature falls below 8°C the pump will run for 2 minutes.

After the two minutes of circulation (fixed) the boiler will check the following:

1. if the flow temperature is > 8°C, the pump stops;
2. if the flow temperature is between 4 and 8°C, the pump will run for another two minutes;
3. if the flow temperature is < 4°C, the burner will fire at minimum power until the temperature reaches 33°C, the burner will go off and the pump will continue to run for two minutes.

The anti-frost device activates only when (with the boiler operating correctly):

• the boiler is electrically powered,
• there is a supply of gas.
• there is a supply of gas.

Change of gas type

Our boilers are designed to function either with Natural Gas (Methane, G20) or LPG (Propane, G31).
If you need to change from one gas to another then you should speak to a Gas Safe Registered engineer or please call Ariston on 0333 240 8777.

Maintenance

Schedule an annual service for the boiler with a Gas Safe Registered engineer. Correct maintenance always results in savings in the cost of running the system. Failure to arrange an annual service for the appliance will invalidate the warranty of the appliance.

Registration is online at www.ariston.com/uk
* The installation must have been carried out by a Gas Safe Registered engineer. For more information call us on 0333 240 8777.

ariston.com

Documents / Resources

References

• http://www.ariston.com/uk
• http://ariston.com

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