SB-520-2
23
!
!
NOTICE
Risk of compressor failure!
Operate the compressor only in the intended ro-
tation direction!
WARNING
The compressor is under pressure!
Serious injuries are possible.
Depressurize the compressor!
Wear safety goggles!
3
Application ranges
Compressor type
Permitted refrigerant
Oil types
Application limits
OS.A95
R717 (NH
3
)
Reniso KC68, Reflo 68A,
SHC226E
See brochure "SP-520"
and BITZER SOFTWARE
Risk of air penetration during operation in the
vacuum range
!
!
NOTICE
Potential chemical reactions as well as in-
creased condensing pressure and rise in dis-
charge gas temperature.
Avoid air penetration!
WARNING
A critical shift of the refrigerant ignition limit is
possible.
Avoid air penetration!
3.1
Oil circulation
For operation with 50 Hz resp. 2900 rpm the adjusted
oil injection into the profiles is sufficient. When operat-
ing at high condensing and simultaneously low evapor-
ation temperatures an additional oil injection into the
profiles must be opened above 50 Hz resp. 2900 rpm.
For this purpose
• depressurize the compressor,
• unscrew the plug (see figure 2, page 26, Pos. 24),
• remove the set screw mounted behind the plug,
• re-assemble the plug with new aluminum gasket
ring,
• check tightness.
4
Mounting
4.1
Transporting the compressor
Either transport the compressor screwed onto the pallet
or lift it using the eyebolts, see figure 1, page 23.
DANGER
Suspended load!
Do not step under the machine!
Fig. 1: Lifting the compressor
4.2
Installing the compressor
Install/mount the compressor horizontally. Take suit-
able measures if the compressor is operated under ex-
treme conditions (e.g. aggressive atmosphere, low out-
door temperatures, etc.). Consultation with BITZER is
recommended.
