Operation Manual / Power2 800-M / 4 Product description
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6.2.3 Wet cleaning with direct water supply
Prerequisites
Do not clean the compressors of the different high and low-pressure stages at the same time,
but one after the other.
On V-engines with several low-pressure and/or high-pressure stages per engine, ABB Turbo
Systems recommends the parallel cleaning of the LP compressors as well as the parallel
cleaning of the HP compressors. This cleaning process is faster and reduces the risk of surg-
ing of the low-pressure and high-pressure stages.
Wet cleaning operations for compressor with direct water supply
Trigger water injection according to the instructions of the enginebuilder.
Observe water pressure before connection to pressure stage.
Operate engine for at least five additional minutes after cleaning.
The cleaning process can be repeated up to three times.
The success of the cleaning can be recognised based on the charging pressure or the exhaust
gas temperature.
If the cleaning is still unsuccessful after three processes and the engine values are unsatisfac-
tory, it is recommended to have the low-pressure and / or high-pressure stage checked and
cleaned by an ABB Turbocharging Service Station.
Cleaning parameters for each compressor
Water injection period
[s]
850 LP 50 … 100 % 3 10
Table 8: Cleaning parameters Power2 LP
Water injection period
[s]
VE
Table 9: Cleaning parameters Power2 HP
* Compressor inlet pressure depending on the operating point
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