Installation and Commissioning
44
Carefully read the Operating Instructions before starting any work!
This is especially valid for the chapter on General Safety Instructions
and the safety instructions in each of the chapters.
6.4
Commissioning
New or reconditioned engines must not be operated during the first operating hours at loads higher than
3/4 power.
After this time period the engine can be slowly brought up to full power.
IMPORTANT!
Termination of liability for material defects by use of non-approved fluids and lubric
ants!
Liability of material defects is terminated if non-approved fluids and lubricants are used.
For this reason:
S
Only use approved fluids and lubricants (see “Fluids and Lubricants ..." publication).
S
The requirements on the quality of gas are specified in “MAN data sheet - Minimum re
quirement on the quality of gas for MAN gas engines"
6.4.1
Gas System
NOTE!
The gas supply line is not included in MAN's scope of delivery. Commissioning, operation,
monitoring of operating conditions, and maintenance of the gas system are all to be per
formed as described in the manufacturer's instructions.
Setting for commissioning
For commissioning the engine is to be set for the use of a suitable gas/air mixture. Any deviations from this
will negatively influence the output power, the engine efficiency and the exhaust emissions.
The requirements on the quality of gas are specified in ”MAN data sheet - Minimum requirement on the qu
ality of gas for MAN gas engines".
The operating pressure of the natural gas in the gas line must be at least 20 mbar.
The gas pressure should be steady within this range.
To get a correct gas/air mixture the air in the engine room must have a temperature of between 10
_
and 30
_
C.
The gas must not contain any condensation when it enters the gas mixer, see “MAN data sheet - Minimum
requirement on the quality of gas for MAN gas engines".
Faults
We urgently recommend that you have faults rectified only at an authorised specialist workshop.
Air filter
The maximum pressure differential up and downstream of the filter may not exceed the following:
New
w
10 hPA
Dirty
x
30 hPA
The filter element must therefore be changed as stated in the maintenance instructions.
Gas filter
The gas filter must filter grain size
x
6
m
m.
