Start-Up; Important Information For Start-Up - GEA Grasso M-Series Operating Manual

Operating Manual | GEA Grasso M-Series
Screw Compressor Packages
8

START-UP

8.1

Important information for start-up

Warning!
Contact with live components is pro-
hibited.
Hint!
The Customer Service department of
GEA Refrigeration Germany GmbH
offer comprehensive support for start-
ing up the screw compressor package.
For contact details, please refer to the
chapter entitled "Technical customer
service".
Warning!
The screw compressor package must
only be operated by suitably skilled
personnel who are familiar with the
contents of the operating manual for
screw compressor packages.
The safety regulations for refrigeration
plants must always be observed in
order to prevent damage to the screw
compressor package and injury to the
operating staff.
The screw compressor packages are tested and
accepted at the works. By the time these screw
compressor packages are delivered to the cus-
tomer, the following work will have been carried
out:
• Complete installation of the cooling system and
in particular:
– cleaning and drying the refrigerant and oil
circuits
– Leak test with air
– Evacuation of the refrigerant circuit and filling
with protective gas (nitrogen) to a pressure
of 0.3 to 0.5 bar (above atmospheric)
• Electrical wiring and testing of the wiring
•
Factory setting for the parameters on the control
•
Factory setting of the safety and monitoring devi-
ces
• Works trial runs (at the request of the client)
GEA Refrigeration Germany GmbH | P_261511_1 | Generated 01.04.2015
The following points must be observed before
commencing with the start-up:
– Check of the external condition of the screw
compressor package (check of insulation, trans-
port damage... ).
–
The area around the machine in which the start-
up is carried out must be marked and secured
against the access of unauthorised persons. Suf-
ficient lighting of the working area must be
ensured to prevent personal injury and material
damage.
– Personal protection gear (work clothing, work
boots, gloves) must be worn during all work on
the screw compressor package. There is a dan-
ger of impact and stumblingfrom protruding parts
on the screw compressor package (e.g. valve
caps). There is also the danger of cut wounds on
sharp edges and rough surfaces. All activities
must therefore be carried out with particular
attention.
– Suitable hearing protection must be worn in
order to protect against damage to hearing or
deafness.
– Thermal hazards resulting in injuries due to
burns or freezing may occur on contact with
parts of the system which are at a very high or
very low temperature. Personal protective equip-
ment must be worn.
– Suitable tools or special tools must be used.
–
Check that all electrical work has been carried
out in accordance with the standards (e.g.protec-
tive earth, insulation, shielding, covers). If neces-
sary, an earth connection must be provided.
– Pipes and pipe sections must be secured to
ensure sufficient mechanical strength. The pipes
and equipment of the screw compressor pack-
age must not be entered.
– Operating media (nitrogen, oil, refrigerant) can
escape. Preventive measures must be taken to
collect and dispose of them in an environmen-
tally responsible manner (e.g.using an oil pan).
Personal breathing protection must be kept
ready in the event of a refrigerant leak. The
safety data sheets of the oil and refrigerant used
must be read prior to commencing start-up work.
Familiarise yourself with the evacuation plan of
the installation location.
Start-up
53