C
C
-0
0
0
0
3
7
Included in tandem or trio accessory kit
Not supplied
Figure 34: Example of right suction
Cp3
Cp2
Cp1
CC-000035
1
Figure 35: Example of left suction
Cp3
Cp2
Cp1
2
CC-000036
1
2
Cp1
Cp2
Cp3
Suction and oil equalization piping drawings must be respected (diameters, minimum straight lengths, …).
Suction washer position
Depending on manifold configuration, it is essential to equalize the pressure of compressor sumps. Hence, a
suction washer must be added on certain compressors according to the table. Suction washers are included in
tandem or trio accessory kits as described in the illustrations.
Figure 33: Suction washer position
By convention, the compressor order (No.1, No.2 ...) is defined counting from left to right, placed on the side facing
the electrical boxes of the compressors (see example below on a trio)
Trio models with Right suction
Trio models with Left suction
Compressor 1
Compressor 2
Compressor 3
Tandem models
Table 16: Tandem models
Tandem
model
Composition
Suction
Discharge Oil equali‐
zation
Outline
drawing
number
Suction
from
Washer inner diameter Washer in
suction of
Tandem kit
code no
DSF180E
DSF090
1"5/8
1"3/8
1"1/8
8560144
Left
Not needed
120Z0634
Right
DSF200E
DSF100
1"5/8
1"3/8
1"1/8
8560144
Left
Not needed
120Z0634
Right
DSF215U
DSF115
1"5/8
1"3/8
1"1/8
8560189
Left
25 mm (0.98 inch)
Cp2
120Z0694
Right
26 mm (1.02 inch)
Cp2
Scroll compressors, DSF090 to DSF530 | Mechanical connections
© Danfoss | Climate Solutions | 2023.06
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