1 Introduction
These refrigeration compressors are intended for incor-
poration into refrigeration systems in accordance with
the 2006/42/EC Machinery Directive. They may only be
put into operation if they have been installed in the refri-
geration systems according to these Mounting/Operat-
ing Instructions and if the overall system complies with
the applicable legal provisions (applied standards: see
declaration of incorporation).
The compressors have been built in accordance with
state-of-the-art methods and current regulations. Partic-
ular importance was placed on user safety.
These Operating Instructions must be kept available
near the refrigeration system during the whole lifetime
of the compressor.
1.1 Also observe the following technical documents
SW-100: Tightening torques for screw fixings.
SW-170: Checking and replacing intervals in compact
screw compressors.
2 Safety
2.1 Authorized staff
All work done on compressors and refrigeration sys-
tems may only be performed by qualified and author-
ized staff who have been trained and instructed accord-
ingly. The qualification and expert knowledge of the
personnel must correspond to the local regulations and
guidelines.
2.2 Residual risks
The compressor may present unavoidable residual
risks. That is why any person working on this device
must carefully read these Operating Instructions.
The following rules and regulations are mandatory:
• relevant safety regulations and standards (e.g. EN
378, EN 60204 and EN 60335),
• generally accepted safety rules,
• EU directives,
• national regulations.
SB-170-7
2.3 Safety references
are instructions intended to prevent hazards. Safety ref-
erences must be stringently observed!
NOTICE
!
!
Instructions on preventing possible damage to
equipment.
CAUTION
Instructions on preventing a possible minor haz-
ard to persons.
WARNING
Instructions on preventing a possible severe
hazard to persons.
DANGER
Instructions on preventing an immediate risk of
severe hazard to persons.
2.3.1
General safety references
NOTICE
!
!
Risk of compressor failure!
Operate the compressor only in the intended ro-
tation direction!
State of delivery
CAUTION
The compressor is filled with a holding charge:
Overpressure 0.2 .. 0.5 bar.
Risk of injury to skin and eyes.
Depressurize the compressor!
Wear safety goggles!
For work on the compressor once it has been put into
operation
WARNING
The compressor is under pressure!
Serious injuries are possible.
Depressurize the compressor!
Wear safety goggles!
CAUTION
Surface temperatures of more than 60°C or be-
low 0°C.
Risk of burns or frostbite.
Close off accessible areas and mark them.
Before performing any work on the compressor:
switch it off and let it cool down.
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