The refrigerant compression system, regardless
of the type of compressor used, will only provide
high efficiency and good reliability, along with a
long operating life, if the system contains solely
the refrigerant and oil it was designed for. Any
other substances within the system will not
improve performance and, in most cases, will be
highly detrimental to system operations.
PSH019-23-26-30-34-39 are qualified with even
tandem combination use static system to balance
the oil level between the compressors.
Each compressor is shipped with a nominal dry
nitrogen holding charge between 0.3 and 0.7 bar
and is sealed with elastomer plugs. Before the
suction and discharge plugs are removed, the
nitrogen holding charge must be released via
the suction schrader valve to avoid an oil mist
blowout. Remove the suction plug first and
the discharge plug afterwards. The plugs shall
be removed only just before connecting the
compressor to the installation in order to avoid
moisture from entering the compressor. When
the plugs are removed, it is essential to keep the
compressor in an upright position so as to avoid
oil spillage.
Compressor holding
charge
System cleanliness
Tandem Configuration
Installation
Tandem configuration
Suction
Discharge
Oil equalization
line
Outline drawing
number
PSH019
1"3/8
1"3/8
1"1/8
5216818P01A
PSH023
1"5/8
1"3/8
1"1/8
5216818P02A
PSH026
1"5/8
1"3/8
1"1/8
5216818P02A
PSH030
1"5/8
1"3/8
1"1/8
5216818P02A
PSH034
1"5/8
1"3/8
1"1/8
5216818P02A
PSH039
1"5/8
1"3/8
1"1/8
5216818P03A
7/8"
Discharge
1"3/8
Oil equalisation
1"1/8
1"1/8 PSH019 tandem
1"1/8 PSH023-039 tandem
Suction
1"3/8 PSH019 tandem
1"5/8 PSH023-039 tandem
31
FRCC.PC.022.A4.02
Application Guidelines
