Operation Manual / Power2 800-M / 4 Product description
6
Periodic maintenance
Page 33 / 59
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HZTL4061_EN
Revision A
September 2016
4. Drying phase
Maintenance of the holding time according to the specifications in the following table and
subsequent adjustment of the desired engine operating point.
Power2
Holding time at reduced load
[min]
850 LP
≥10
Table 13: Holding time
Repetitions of wet cleaning
The repeating of cleaning cycles one immediately after the other must be avoided as this can
lead to excessive mechanical stress, hence reducing the operating life of the components.
The action of the cleaning water on the peripheral units (such as boiler) must be clarified by
the operator.
Draining the gas outlet casing of the low-pressure stage
The following points must be observed with regard to draining the gas outlet casing:
The exhaust gas temperature downstream of the low-pressure stage drops drastically dur-
ing cleaning (typical gas outlet temperatures during cleaning: 50 ... 150 °C).
Depending on the engine load, the drainage can take place through the drain pipe. This
drainage may occur after 2 … 3 minutes or not at all.
If the drainage of the gas outlet casing is omitted, the low-pressure stage speed and/or the
gas inlet temperature must be monitored during the cleaning process. If the load is too low,
water can collect in the gas outlet casing. Indications for this are a sudden severe drop in
the low-pressure stage speed or a very large increase in the gas inlet temperature. In such
cases, the cleaning operations must be stopped and the cleaning cycle restarted with reduced
water pressure or higher engine load.
Содержание Power2 850-M16
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