To be checked See
chapter
Complied?
➤ Are the power supply cable conductor cross-sections and fuse ratings
adequate?
2.14
➤ Fan motor overload protection switch set according to the mains volt‐
age?
7.7
➤ Have all electrical connections been checked for tightness?
➤ Has the check been repeated after 50 operating hours?
–
➤ Is a shut-off valve fitted to gas outlet? 6.4
➤ Is the connection the gas network made with a flexible pressure line
or axial compensator?
6.4
➤ Sufficient cooling oil in the separator tank?
(oil level indicator outside the red zone)
10.13
➤ Is there sufficient cooling oil in the machine? 7.5
➤ Is there sufficient cooling oil in the airend? 7.6
➤ Is the machine firmly anchored to the floor?
(option H1)
6.7.1
➤ Supply of cooling water ensured?
(Option K2/K9)
6.7.2
➤ Are all access doors closed and latched and all removable panels in
place and secured?
–
Tab. 32 Installation conditions checklist
7.4 Commissioning the Frequency Converter
The frequency converter parameters are preset. Adjustment of parameters to suit operating condi‐
tions on site is done by trained and authorised personnel.
Changes to the factory settings may influence the whole machine. The machine may break down
or be damaged.
➤ Allow only trained and authorised personnel to make parameter changes.
7.5 Filling with cooling oil
The machine must be charged with cooling oil prior to commissioning, see chapter 10.15.
For the required cooling oil charge volume please see chapter 2.10.
7.6 Filling cooling oil into the airend
Before starting the compressor for the very first time and before re-starting after a shutdown period
of more than 3 months it is necessary to manually add a quantity of cooling oil into the airend. In
order to avoid that the cooling oil exceeds the permissible level, drain the required quantity from
the de-pressurised oil separator tank.
Chapter 10.16 provides detailed information on how to drain cooling oil from the oil separator tank.
7 Initial Start-up
7.4 Commissioning the Frequency Converter
44
Service Manual Screw Compressor
ESD 442/14 bar (abs) SFC SIGMA CONTROL 2 ESD_2C_10357405_10–LIN_00 E
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