AL-KO EASYAIR RO-01, Инструкция по установке и эксплуатации

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Subject to changes in line with technical progress.
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Servicing and maintenance
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8.4.1.1 Maintenance
„
Inspect the heat exchangers on the air side for soiling, damage and corrosion.
„
Check connections and screw fittings.
„
Check the venting valve and filling of the heat exchangers.
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Check antifreeze concentration and top up if necessary.
„
Inspect the siphon and top up, if necessary.
„
Inspect water drains for correct function.
NOTE
During prolonged standstills, corrosion can be caused in the heat exchangers by sulphate-re-
ducing bacteria. These sulphides primarily attack the solder seams as well as the copper base
material.
We recommend the following measures to reduce this type of copper corrosion:
„
Use of sulphate-free water in the whole circuit
„
Ensure that the circuit has no leaks
„
Avoid prolonged standstills of the filled circuit
„
Avoid frequent topping up of fresh water
„
Use of material-compatible inhibitors or use of biocides
8.4.1.2 Cleaning
„
Only methods that do not damage the fins may be used for cleaning of the heat exchanger registers.
Cleaning methods Can be used for all types of finned heat exchanger
1 Compressed air All heat exchanger registers
2 Steam cleaners Steel galvanised heat exchanger registers only
3 High-pressure water cleaner only with THD multi-jet method All heat exchanger registers
IMPORTANT
When using compressed air and steam cleaners, ensure a sufficient distance and that the jet
is aligned parallel to the fins!
NOTE
Complete removal of the deposits in heat exchangers is not possible using compressed air.
Thorough cleaning cannot be guaranteed, particularly in deep registers, by using only com-
pressed air and steam cleaners.
As a result, the dirt deposits are compacted in the depths of the heat exchangers instead of
being removed. The consequences are increased pressure losses, a lack of hygiene, odours,
material attack, etc.
„
The use of high-pressure water cleaners using conventional spray nozzles is not permitted as these can damage the
delicate fins and thorough cleaning, particularly in the deeper heat exchanger registers, cannot always be achieved.
„
Heat exchanger registers should therefore only by cleaned with high-pressure water cleaners using the THD mul-
ti-jet method. This ensures damage-free deep cleaning of the heat exchanger registers. This applies to all heat ex-
changer register types.