SB-520-2
22
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
ac-001-*.pdf under www.bitzer.de.
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
ST-150: Compressor module for screw compressors.
SW-110: Inspection and replacement intervals with
semi-hermetic and open type 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 hazards
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:
• the relevant safety regulations and standards (e.g.
EN378-2, EN60204, EN60335 and EN953),
• generally accepted safety rules,
• EU directives,
• national regulations.
2.3
Safety references
are instructions intended to prevent hazards. Safety ref-
erences must be stringently observed!
!
!
NOTICE
Safety reference to avoid situations which may
result in damage to a device or its equipment.
CAUTION
Safety reference to avoid a potentially hazard-
ous situation which may result in minor or mod-
erate injury.
WARNING
Safety reference to avoid a potentially hazard-
ous situation which could result in death or seri-
ous injury.
DANGER
Safety reference to avoid an imminently hazard-
ous situation which may result in death or seri-
ous injury.
2.3.1
General safety references
State of delivery
CAUTION
The compressor is filled with a holding charge:
Overpressure 0.5 .. 1 bar nitrogen.
Risk of injury to skin and eyes.
Depressurise the compressor!
Wear safety goggles!
For work on the compressor once it has been
commissioned
DANGER
Hair, hands or clothes may get caught in the
coupling!
Serious injuries are possible.
Secure the coupling zone with a separating
cover (protective grid)!
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 or warm up.
