Bedienungsanleitung Wodtke Frank Airplus S4 (Seite 39 von 83) (Englisch)

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9 Servicing

We advise you to have your appliance serviced only by a duly qualified company. The

proper functioning of your appliance depends decisively on whether it is properly and regularly

serviced. The required servicing frequency in turn depends on pellet quality and on whether the

appliance is regularly cleaned by the user. Every wodtke appliance is delivered with a special

brush for servicing. Soot is an excellent insulator, and appliances that are not serviced

therefore tend to deliver less and less heat to the surroundings or to the heat exchanger,

thus loosing thermal efficiency. Servicing allows your appliance to regain its optimal

energy efficiency, saving you heating costs and sparing the environment.

Caution / Danger:

Appliances that are not serviced according to our instructions must not be operated.

Disregard of this note voids all warranty claims.

Have the appliance serviced by a duly trained technician at the latest when “WA”

appears in the display. “WA” appears after a throughput of 1.5 tons of pellets following the last

reset. The number below “WA” states for how long servicing has been overdue. “WA” can be

reset from menu level 1 after servicing (see Chapter Fehler! Es wurde kein Textmarkenname

vergeben.), and the counter then starts counting again from 1500 kg. At menu level 1 you can

also inquire how many kg of standard pellets can still be burnt before servicing is due again

(see Chapter 0). Note: See Chapter 0 on how to do a service reset.

Note: Servicing may become necessary before “WA” appears, especially if the pellets have an

ash content greater than 0.5% or the burner pot has not been cleaned regularly (see Chapter

0)!

Some tips of advice:

• Ask you supplier to confirm the ash content of your pellets in writing. This is a

significant determinant of servicing frequency. High-quality pellets usually have an

ash content of no more than about 0.2 to 0.3%!

• Clean the burner pot regularly (see Chapter 0)

• Make a service contract with your dealer.

Example of the influence of pellet quality on servicing frequency:

Our recommended service interval of 1500 kg of pellet throughput refers to high-quality pellets

with an ash content of 0.25%. An ash content of 0.5% (i.e. twice as high) shortens the service

interval to 750 kg because twice the amount of ash and soot will arise per unit of pellet weight.

An ash content of 1% (i.e. 4 time higher than normal) accordingly reduces the permissible

throughput between servicings by a factor of 4, i.e. to 375 kg. This is not reflected in the display,

since this only refers to standard pellets. A duly qualified technician is able to recognise a need

for servicing ahead of time by elevated fan speed, low thermal output to water (only in

Waterplus appliances) or elevated flue gas temperature.

wodtke appliances perform electronic calculations of pellet consumption etc. using formulas

based on the following definition of standard pellets: Standard pellets have a diameter of 6

mm, a uniform length of 1 cm, a bulk density of 650 kg/m³ and an ash content of 0,25%. In

practice these values vary between pellet brands as well as between delivery batches, and the

actual amount of pellets consumed can therefore deviate from the value shown in the display.

Note: Internal data processing (rounding of operating cycles) by the appliance can result in

numerical deviations in counter readings by up to 10%.

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