Bedienungsanleitung Ariston Clas HE R (Seite 41 von 64) (Englisch)

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MAINTENANCE

Important

Maintenance is an essential part of the safe and eﬃcient operation

of the boiler and ensures its durability. It should be performed

according to the instructions given in current legislation. Perform

combustion analysis regularly in order to check the operating

eﬃciency of the boiler and to make sure any polluting substances

released are within the boundaries set by current legislation.

Before beginning maintenance work:

- Disconnect the appliance from the electricity supply by turning

the external bipolar switch to the “OFF” position;

- Remove the fuse

- Close the gas isolation valve.

After the work has been completed the initial settings will be

restored.

General comments

It is recommended that the following inspections be carried out on

the boiler at least once a year:

1. Check the seals in the water part and, if necessary, replace the

gaskets and restore the seal to perfect working order.

2. Check the seals in the gas part and, if necessary, replace the

gaskets and restore the seal to perfect working order.

3. Visually check the overall condition of the boiler.

4. Visually check the combustion and, if necessary, disassemble

and clean the burner.

5. Following the inspection detailed in point “3”, disassemble and

clean the combustion chamber, if necessary.

6. Following the inspection detailed in point “4”, disassemble and

clean the burner and injector, if necessary.

7. Cleaning the primary heat exchanger

8. Make sure the following heating safety devices are operating

correctly:

- temperature limit safety device.

9. Make sure that the following gas part safety devices are

operating correctly:

- absence of gas or ﬂame safety device (ionisation).

10. Perform a general inspection of the boiler operation.

11. Remove oxide from the detection electrode using an emery

cloth.

12. After servicing, complete the relevant Service Interval Record

section of the Benchmark Checklist (page 59).

13. These checks are not exhaustive. Further mechanical, electrical,

condensate and combustion maintenance checks may be

required.

14. Clean and reﬁll the condensate trap

Operational test

After having carried out the maintenance operations, ﬁll the heating

circuit at a pressure of approximately 1.5 bar and release the air from

the system (scaled system only).

- Begin operating the boiler.

- If necessary, release the air from the heating system again.

- Check the settings and make sure all the command, adjustment

and monitoring parts are working correctly.

- Check the ﬂue system is sealed and operating correctly.

Draining procedures

The heating system must be drained using the following procedure:

- Switch oﬀ the boiler, make sure the external bipolar switch is in

the OFF position;

- Open the system drain oﬀ cock and collect the escaping water in a

container;

- Empty the water from the lowest points of the system (where

applicable).

If the system is to be left inactive in areas where the room

temperature may fall below 0°C during winter, we recommend that

anti-freeze liquid is added to the water in the heating system in

order to avoid the need for repeated draining; when this liquid is

used make sure it is compatible with the stainless steel used for the

bodywork of the boiler.

We recommend the use of anti-freeze products which contain

PROPYLENE GLYCOLS as these inhibit corrosion and that they

are used in conjunction with the anti-scaling and anti-corrosion

function, in the quantities suggested by the manufacturer, at the

mimimum temperature.

Regularly check the pH level of the water/anti-freeze mix in the

boiler circuit and replace it when the value measured is lower than

the limit prescribed by the manufacturer.

DO NOT MIX DIFFERENT TYPES OF ANTI-FREEZE.

The manufacturer will not be held liable for any damage caused by

the appliance or the system due to the use of inappropriate anti-

freeze substances or additives.

WARNING

Before handling, empty all components which may contain hot

water, performing bleeding where necessary.

Descale the components in accordance with the instructions

provided on the safety data leaﬂet supplied with the product used,

make sure the room is well ventilated, wear protective clothing,

avoid mixing diﬀerent products, and protect the appliance and

surrounding objects.

Seal all openings used to take a gas pressure reading or to make any

gas adjustments.

Make sure that the nozzle is compatible with the supplied gas.

If a smell of burning is detected or smoke is seen leaking from the

appliance, or there is a smell of gas, disconnect it from the electricity

supply, shut oﬀ the gas valve, open the windows and call for

technical assistance.

Cleaning the condensate trap

The trap is accessed by emptying the condensate bowl located in

the bottom section. Wash with water and detergent.

Replace the condensate collection bowl in its housing.

NB: In the event of prolonged use of the appliance, the trap must

be ﬁlled before being used again.

A lack of water in the siphon is dangerous and may cause exhaust

gases to be released into the atmosphere.

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