GEA Grasso V Series - Diagrams: Two Stage

Capacity control steps
Compressor
type
Capacity %
20
Cylinders Solenoids
87 (5+6) + 7 + (2+4) + (1+3) 1 + 3 + 4
100
(5+6) + 7 + 8 + (2+4) +
(1+3)
1 + 2 + 3 + 4
V 1800
Before Sept. 2014
20 (7+8) -
30 (7+8) + 5 1
40 (7+8) + 5 + 6 1 + 2
50 (7+8) + 6 + (9+10) 2 + 3
60 (7+8) + 5 + 6 + (9+10) 1 + 2 + 3
70 (7+8) + 5 + (1+2+3+4) 1 +4
80 (7+8) + 5 + 6 + (1+2+3+4) 1 + 2 + 4
90 (7+8) + 6 + (9+10) + (1+2+3+4) 2 + 3 + 4
100
(7+8) + 5 + 6 + (9+10) +
(1+2+3+4)
1 + 2 + 3 + 4
V 1800
From Sept. 2014
30 (5+7+8) -
40 (5+7+8) + 6 4
50 (5+7+8) + (9+10) 1
60 (5+7+8) + (9+10) + 6 1 + 4
70 (5+7+8) +(9+10) + (1+2) 1 + 2
80
(5+7+8) + 6 + (3+4) +
(1+2)
2 + 3 + 4
90
(5+7+8) + (3+4) + (9+10)
+ (1+2)
1 + 2 + 3
100
(5+7+8) + (3+4) + (9+10)
+ (1+2) + 6
1 + 2 + 3 + 4
4.5 DIAGRAMS TWO STAGE
Solenoid valve/cylinder numbering for electric capacity control
Compressor
type
Solenoid
UNL
NO
21
No. 1
NC
No. 2
NC
No. 3
NC
No. 4
NC
Cylinder number
22
/ solenoid valves
300T &
700T
[4
hp
]
1 2 3 -
450T &
1100T
[4
hp
]
1 2, 3
5, [6
hp
]
-
20 Refer to the swept volume expressed as a percentage of the full-load swept volume
21 UNL, Unloaded start
22 Numbers between brackets [] are HP cylinders
APPENDIX; Product Information (PI)
DIAGRAMS TWO STAGE
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