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USER’S MANUAL

Disposal and recycling boiler.
Our products are designed and manufactured by using 
components made from recyclable materials where 
possible.
 
The boiler and its accessories have to be adequately 
disposed of and the various materials separated where 
possible.
The packaging used for the transport of the boiler must be 
disposed of by the installer.
 
ATTENTION!!
Recycling and disposal of the boiler and the accessories 
must be made as required by regulations.

Dear Customer,

Thank you for choosing an ARISTON boiler.
We warranty that your boiler is a reliable and technically 
sound product.
This manual provides detailed instructions and  
recommendations for proper installation,  use and 
maintenance.
Remember to keep this manual in a safe place for future 
reference.

Thank you for choosing an 

Ariston 

boiler compatible with Ariston 
Net
, the service designed and 
manufactured by Ariston, to 
provide a whole new experience in 
using a domestic heating system. 
Ariston Net allows you to start, 
stop and check the temperature 
of domestic heating and water 
anytime, anywhere from a smartphone, tablet or PC. It 
allows you to constantly monitor energy consumption to 
ensure  you  save  on  your  gas  bill.  It  also  notifies  you  in 
real time if there is a boiler failure. If a remote diagnostic 
service is activated, the service centre will be able to 
solve problems remotely where possible or arrange an 
appointment at your earliest convenience.

The installation must have been carried out by a Gas 

Safe Registered engineer.
For more information call us on  

0333 240 8777.

WARRANTY

This appliance is in warranty for 

8 years (CLAS ONE 

Models) - 12 years (CLAS NET ONE Models)

 from 

the date of installation. Proof of installation or purchase 
and annual servicing must be provided upon request. The 
installation must have been carried out by a Gas Safe 
Registered engineer.
Ariston is obliged under this warranty to repair or replace a 
faulty appliance under our terms and conditions. 
Any repair or replacement will be at Ariston’s discretion. 
This warranty will only apply where the fault arises from 
defects in the appliance, caused either by material or 
workmanship of the manufacturer.
This warranty does not cover malfunction or damage 
arising from incorrect installation, commissioning or 
maintenance procedures as advised in the Installation and 
Servicing manual, inefficient flue system, poor or incorrect 
electricity and wiring, incorrect gas supply or pressure, 
tampering by inexperienced persons and any other cause 
not directly related to manufacture.
Ariston Thermo Uk Ltd cannot accept responsibility for any 
cost arising from repair or maintenance carried out by any 
third party.
This warranty does not affect your statutory rights.
The appliance must be registered with Ariston within 30 
days from date of installation.
The boiler must be serviced annually either by a local Gas 
Safe Registered engineer or managed by Ariston directly 
which can be arranged by calling 

0333 240 8777.

If the boiler is not serviced directly through Ariston then 
proof service must be sent in to 

Ariston UK

 (address on 

back cover of manual).”

Registration is online at 

www.ariston.co.uk. 

Summary of Contents for CLAS NET One

Page 1: ...One CLAS NET One CLAS One CLAS SYSTEM One discover more ariston com G C N 47 116 88 24 kW G C N 47 116 89 30 kW G C N 47 116 90 38 kW G C N 47 116 85 24 kW G C N 47 116 86 30 kW G C N 47 116 87 38 kW G C N 41 116 49 18 kW G C N 41 116 50 24 kW G C N 41 116 51 30 kW Country of Destination GB IE Including Cube S Net ...

Page 2: ...out by a Gas Safe Registered engineer For more information call us on 0333 240 8777 WARRANTY This appliance is in warranty for 8 years CLAS ONE Models 12 years CLAS NET ONE Models from the date of installation Proof of installation or purchase and annual servicing must be provided upon request The installation must have been carried out by a Gas Safe Registered engineer Ariston is obliged under th...

Page 3: ...trocution from live components Donotuseinsecticides solventsoraggressive detergents to clean the appliance Damage to plastic and painted parts SAFETY REGULATIONS 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 o...

Page 4: ...ng 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 ...

Page 5: ...rror 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 operation set Hot water operation active Hot Water Comfort activated Boiler off with antifreeze function active Anti frost Function Active AUTO AUTO function activated High efficiency operati...

Page 6: ...r 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 FILLING PROCEDURE RE ESTABLISH THE CORRECT PRESSURE USING THE FILLING LOOP POSITIONED UNDERNEATH THE BOILER AND PRESS THE MODE BUTTON FOR 5 SECONDS THE DISPLAY SHOWS PURGE WHEN THE PRESSURE GAUGE INDICATES A PRESSURE OF 1 BAR CLOSE THE FILLING VALVE AND ...

Page 7: ...domestic hot water indicating the set temperature ATTENTION Switch off the boiler completely by switching the external elec trical switch to the OFF position Shut off the gas valve Clock Instructions 1 General layout The mechanical clock covers a 24 hour period Each tappet represents 15 minutes A An override switch is located on the clock B 2 To set the time To set the time of day grasp the outer ...

Page 8: ...nergy 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 th...

Page 9: ...event this is not Necessarily a problem Anti frost Device The anti frost function acts on the central heating flow temperature pro be independently from other settings when the electrical supply is tur ned 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 fol lowing a if the central heating flo...

Page 10: ...ther 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 ...

Page 11: ... to inspect the appliance and it s installation We are unable to cover any costs under warranty where Ariston have not been contacted and allowed access to inspect the appliance and installation Removal or repair of the appliance by any other party than Ariston without prior inspection or authorisation will void this warranty The 8 or 12 Year warranty is only applicable to appliances installed in ...

Page 12: ...ITALIAN DESIGN Ariston Thermo UK Ltd Artisan Building Hillbottom Road High Wycombe Bucks HP124HJ Telephone 01494 418500 Customer Service 0333 240 8777 ariston co uk 420010818400 ...

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