GEA Grasso 5 - Page 58

Capacity control steps
Compressor
type
Capacity %
20
Cylinders Solenoids
Qty HP / Qty LP
cylinders
21
Remark
22
)
50
(1 + 2) + 3 +
[6]
1 + 2 3.0 -
50
(1 + 2) + [6] +
(4 + [8])
1 + 3 1.5
Starting only/Fast
pull down
67
(1 + 2) + [6] +
(4 + [8])
1 + 2 + 3 2.0 -
83
(1 + 2) + (5 +
7) + [6] + (4 +
[8])
1 + 3 + 4 2.5 -
100
(1 + 2) +3 + (5
+ 7) + [6] + (4
+ [8])
1 + 2 + 3 + 4 3.0 -
1800T
0 [6] - 0.0
Starting only/Fast
pull down
29 (1 + 2) + [6] 1 2.0 -
29
(3 + 4 + [10]) +
[6]
4 1.0
Starting only/Fast
pull down
43
(1 + 2) + 5 +
[6]
1 + 3 3.0 -
43
(3 + 4 + [10]) +
5 + [6]
3 + 4 1.5
Starting only/Fast
pull down
57
(1 + 2) + [6] +
(7 + [8] + 9)
1 + 2 2.0 -
71
1 + 2 + 5 + [6]
+ (7 + [8] + 9)
1 + 2 + 3 2.5 -
86
(1 + 2) + (3 +
4 + [10]) + (7 +
[8] + 9) + [6]
1 + 2 + 4 2.0 -
100
(1 + 2) + (3 +
4 + [10]) + +5
+ [6] + (7 + [8]
+ 9)
1 + 2 + 3 + 4 2.3 -
20 Refer to the swept volume expressed as a percentage of the full-load swept volume of the LP cylinders
21 Each phi has its own field of application! Refer Page 57
22 For starting up procedure, refer Section 4.3, Page 53
APPENDIX; Product Information (PI)
DIAGRAMS TWO STAGE
0089288_imm_v_english_19
58 07.04.2021