56
Table 5-5
Compressor Sequence
Circuit # 1 % Loaded Circuit # 2 % Loaded % Loaded
Unit Control 1A 1B 1C 1D CKT #1 2A 2B 2C 2D CKT #2 Unit
Size Step (1K2) (1K5) (1K1) (1K19) (1K3) (1K6) (1K4) (1K20)
1 Off Off On N/A 38% Off Off Off N/A 0% 19%
2 Off Off On 38% Off Off On 38% 38%
80 Ton 3 On On Off 63% Off Off On 38% 50%
4 On On Off 63% On On Off 63% 63%
5 On On On 100% On On Off 63% 81%
6 On On On 100% On On On 100% 100%
1 Off Off On On 40% Off Off Off Off 0% 20%
2 Off Off On On 40% Off Off On On 40% 40%
100 Ton 3 Off On On On 70% Off Off On On 40% 55%
4 Off On On On 70% Off On On On 70% 70%
5 On On On On 100% Off On On On 70% 85%
6 On On On On 100% On On On On 100% 100%
1 Off Off On On 50% Off Off Off Off 0% 25%
2 Off Off On On 50% Off Off On On 50% 50%
120 Ton 3 Off On On On 75% Off Off On On 50% 63%
4 Off On On On 75% Off On On On 75% 75%
5 On On On On 100% Off On On On 75% 88%
6 On On On On 100% On On On On 100% 100%
Figure 5-4
Typical Compressor Locations
System Start-Up (Continued)
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