GEA Grasso 5 Installation And Maintenance Instructions Manual page 58

APPENDIX; Product Information (PI)
DIAGRAMS TWO STAGE
Capacity control steps
Compressor
20
21
22
58
20
Capacity %
type
50
50
67
83
100
0
29
29
43
43
1800T
57
71
86
100
Refer to the swept volume expressed as a percentage of the full-load swept volume of the LP cylinders
Each phi has its own field of application! Refer Page 57
For starting up procedure, refer Section 4.3, Page 53
Cylinders Solenoids
(1 + 2) + 3 +
1 + 2
[6]
(1 + 2) + [6] +
1 + 3
(4 + [8])
(1 + 2) + [6] +
1 + 2 + 3
(4 + [8])
(1 + 2) + (5 +
7) + [6] + (4 + 1 + 3 + 4
[8])
(1 + 2) +3 + (5
+ 7) + [6] + (4 1 + 2 + 3 + 4
+ [8])
[6] -
(1 + 2) + [6] 1
(3 + 4 + [10]) +
4
[6]
(1 + 2) + 5 +
1 + 3
[6]
(3 + 4 + [10]) +
3 + 4
5 + [6]
(1 + 2) + [6] +
1 + 2
(7 + [8] + 9)
1 + 2 + 5 + [6]
1 + 2 + 3
+ (7 + [8] + 9)
(1 + 2) + (3 +
4 + [10]) + (7 + 1 + 2 + 4
[8] + 9) + [6]
(1 + 2) + (3 +
4 + [10]) + +5
1 + 2 + 3 + 4
+ [6] + (7 + [8]
+ 9)
Qty HP / Qty LP
Remark
21
cylinders
3.0
Starting only/Fast
1.5
pull down
2.0
2.5
3.0
Starting only/Fast
0.0
pull down
2.0
Starting only/Fast
1.0
pull down
3.0
Starting only/Fast
1.5
pull down
2.0
2.5
2.0
2.3
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