Table 19 Ð Compressor Loading and Unloading Sequences (cont)
COOLING |
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| SIZE 054 UNITS |
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| Lead Circuit |
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| Lag Circuit |
| Active |
| Percent | ||||
STAGE |
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| Comp 1 | Unloader U1 | Unloader U2 |
| Comp 2 |
| Cylinders |
| Capacity | |||||
0 |
| OFF | OFF |
| OFF |
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| OFF | 0 | 0 | |||||
1 |
| ON | ON |
| ON |
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| OFF | 2 | 20 | |||||
2 |
| ON | ON |
| OFF |
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| OFF | 4 | 40 | |||||
3 |
| ON | OFF |
| OFF |
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| OFF | 6 | 60 | |||||
4 |
| ON | ON |
| OFF |
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| ON | 10 | 80 | |||||
5 |
| ON | OFF |
| OFF |
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| ON | 12 | 100 | |||||
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COOLING |
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| SIZE 064 UNITS |
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| Lead Circuit |
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| Lag Circuit |
| Active |
| Percent | ||||
STAGE |
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| Comp 1 | Unloader U1 | Unloader U2 |
| Comp 2 |
| Cylinders |
| Capacity | |||||
0 |
| OFF | OFF |
| OFF |
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| OFF | 0 | 0 | |||||
1 |
| ON | ON |
| ON |
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| OFF | 2 | 17 | |||||
2 |
| ON | ON |
| OFF |
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| OFF | 4 | 33 | |||||
3 |
| ON | OFF |
| OFF |
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| OFF | 6 | 50 | |||||
4 |
| ON | ON |
| ON |
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| ON | 8 | 67 | |||||
5 |
| ON | ON |
| OFF |
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| ON | 10 | 83 | |||||
6 |
| ON | OFF |
| OFF |
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| ON | 12 | 100 | |||||
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COOLING |
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| SIZE 074, 078 UNITS |
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| Lead Circuit |
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| Lag Circuit |
| Active |
| Percent | ||||
STAGE |
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| Comp 1 | Unloader U1 | Unloader U2 |
| Comp 2 |
| Cylinders |
| Capacity | |||||
0 |
| OFF | OFF |
| OFF |
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| OFF | 0 | 0 | |||||
1 |
| ON | ON |
| ON |
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| OFF | 2 | 14 | |||||
2 |
| ON | ON |
| OFF |
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| OFF | 4 | 29 | |||||
3 |
| ON | OFF |
| OFF |
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| OFF | 6 | 43 | |||||
4 |
| ON | ON |
| ON |
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| ON | 8 | 71 | |||||
5 |
| ON | ON |
| OFF |
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| ON | 10 | 86 | |||||
6 |
| ON | OFF |
| OFF |
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| ON | 12 | 100 | |||||
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COOLING |
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| SIZE 088 UNITS |
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| Lead Circuit |
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| Lag Circuit |
| Active |
| Percent | ||||
STAGE |
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| Comp 1 | Unloader U1 | Unloader U2 |
| Comp 2 |
| Cylinders |
| Capacity | |||||
0 |
| OFF | OFF |
| OFF |
|
| OFF | 0 | 0 | |||||
1 |
| ON | ON |
| ON |
|
| OFF | 2 | 16 | |||||
2 |
| ON | ON |
| OFF |
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| OFF | 4 | 33 | |||||
3 |
| ON | OFF |
| OFF |
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| OFF | 6 | 50 | |||||
4 |
| ON | ON |
| ON |
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| ON | 8 | 66 | |||||
5 |
| ON | ON |
| OFF |
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| ON | 10 | 83 | |||||
6 |
| ON | OFF |
| OFF |
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| ON | 12 | 100 | |||||
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COOLING |
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| SIZE 104 UNITS |
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| Lead Circuit |
|
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| Lag Circuit |
| Active |
| Percent | ||||
STAGE |
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| Comp 1 |
| Unloader U1 |
| Comp 3 |
| Comp 2 |
| Comp 4 |
| Cylinders |
| Capacity | |
0 |
| OFF |
| OFF |
| OFF |
| OFF |
| OFF |
| 0 |
| 0 | |
1 |
| ON |
| ON |
| OFF |
| OFF |
| OFF |
| 4 |
| 20 | |
2 |
| ON |
| OFF |
| OFF |
| OFF |
| OFF |
| 6 |
| 30 | |
3 |
| ON |
| ON |
| OFF |
| ON |
| OFF |
| 10 |
| 50 | |
4 |
| ON |
| OFF |
| OFF |
| ON |
| OFF |
| 12 |
| 60 | |
5 |
| ON |
| ON |
| OFF |
| ON |
| ON |
| 14 |
| 70 | |
6 |
| ON |
| OFF |
| OFF |
| ON |
| ON |
| 16 |
| 80 | |
7 |
| ON |
| ON |
| ON |
| ON |
| ON |
| 18 |
| 90 | |
8 |
| ON |
| OFF |
| ON |
| ON |
| ON |
| 20 |
| 100 | |
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43