82
APPENDIX B (cont)
The following tables show the loading sequence for 30HX206
(57/43 split) and 30HX271 (67/33 split) chillers. All compressors
have two loaders and the chillers are configured for equal circuit
loading. See Note 2.
NOTES:
1. Stages 3A and 7A are not used by the algorithm when increasing stages.
Stages 3 and 7 are not used when decreasing stages.
2. The loading sequence for 30GX205-265 units is the same as those shown
for the 30HX206,271 above.
STANDARD LOADING SEQUENCE (CIRCUIT A LEAD CIRCUIT, 3-COMPRESSOR UNIT)
STAGE
COMP
A1
LOADER
A1
LOADER
A2
COMP
A2
COMP
B1
LOADER
B1
LOADER
B2
% TOTAL
CAPACITY
(57/43 Split)
% TOTAL
CAPACITY
(67/33 Split)
0
0
0
0
0
0
0
0
0.0
0.0
1
1
0
0
0
0
0
0
14.3
13.3
2
1
1
0
0
0
0
0
25.0
23.3
3
1
1
1
0
0
0
0
35.7
33.3
4
1
1
0
0
1
1
0
55.2
46.7
5
1
1
0
0
1
1
1
68.2
56.7
6
1
1
1
0
1
1
1
78.9
66.7
7
1
1
0
1
1
1
1
83.0
80.0
8
1
1
1
1
1
1
1
100.0
100.0
CLOSE CONTROL LOADING SEQUENCE (CIRCUIT A LEAD CIRCUIT, 3-COMPRESSOR UNIT)
STAGE
COMP
A1
LOADER
A1
LOADER
A2
COMP
A2
COMP
B1
LOADER
B1
LOADER
B2
% TOTAL
CAPACITY
(57/43 Split)
% TOTAL
CAPACITY
(67/33 Split)
0
0
0
0
0
0
0
0
0.0
0.0
1
1
0
0
0
0
0
0
14.3
13.3
2
1
1
0
0
0
0
0
25.0
23.3
3
1
1
1
0
0
0
0
35.7
33.3
3A
1
0
0
0
1
0
0
31.6
26.7
4
1
0
0
0
1
1
0
44.5
36.7
5
1
0
0
0
1
1
1
57.5
46.7
6
1
1
0
0
1
1
1
68.2
56.7
7
1
1
1
0
1
1
1
78.9
66.7
7A
1
0
0
1
1
1
1
65.9
60.0
8
1
1
0
1
1
1
1
83.0
80.0
9
1
1
1
1
1
1
1
100.0
100.0
LEGEND
0 — Off
1 — On