Carrier 30GTN - Page 21

Table 5B — Part Load Data Percent Displacement, With Accessory Unloaders
UNIT
30GTN,GTR
CONTROL
STEPS
LOADING SEQUENCE A LOADING SEQUENCE B
%
Displacement
(Approx)
Compressors
%
Displacement
(Approx)
Compressors
040 (60 Hz)
1 25 A1* 25 B1*
250A1 50B1
3 75 A1*,B1 75 A1,B1*
4 100 A1,B1 100 A1,B1
040 (50 Hz)
045 (60 Hz)
1 24 A1* 37 B1*
247A1 53B1
3 61 A1*,B1* 61 A1*,B1*
4 76 A1*,B1 84 A1,B1*
5 100 A1,B1 100 A1,B1
045 (50 Hz)
050 (60 Hz)
1 31 A1* 38 B1*
244A1 56B1
3 69 A1*,B1* 69 A1*,B1*
4 87 A1*,B1 82 A1,B1*
5 100 A1,B1 100 A1,B1
050 (50 Hz)
060 (60 Hz)
1 28 A1* 38 B1*
242A1 58B1
3 67 A1*,B1* 67 A1*,B1*
4 87 A1*,B1 80 A1,B1*
5 100 A1,B1 100 A1,B1
060 (50 Hz)
070 (60 Hz)
1 33 A1* 33 B1*
250A1 50B1
3 67 A1*,B1* 66 A1*,B1*
4 83 A1*,B1 83 A1,B1*
5 100 A1,B1 100 A1,B1
070 (50 Hz)
1 19 A1* 31 B1*
227A1 47B1
3 49 A1*,B1* 49 A1*,B1*
4 65 A1*,B1 57 A1,B1*
5 73 A1,B1 73 A1,B1
6 76 A1*,A2,B1* 76 A1*,A2,B1*
7 92 A1*,A2,B1 84 A1,A2,B1*
8 100 A1,A2,B1 100 A1,A2,B1
080, 230B (60 Hz)
1 11 A1† 15 B1†
2 22 A1* 30 B1*
334A1 44B1
4 41 A1†,B1* 48 A1,B1†
5 55 A1†,B1 63 A1,B1*
6 67 A1*,B1 78 A1,B1
7 78 A1,B1 85 A1,A2,B1*
8 89 A1*,A2,B1 100 A1,A2,B1
9 100 A1,A2,B1 — —
080, 230B (50 Hz)
1 8 A1† 13 B1†
2 17 A1* 25 B1*
325A1 38B1
4 33 A1†,B1* 50 A1,B1*
5 46 A1†,B1 62 A1,B1
6 54 A1*,B1 67 A1*,A2,B1†
7 62 A1,B1 75 A1,A2,B1†
8 71 A1†,A2,B1* 88 A1,A2,B1*
9 84 A1†,A2,B1 100 A1,A2,B1
10 92 A1*,A2,B1 — —
11 100 A1,A2,B1 — —
090, 245B (60 Hz)
1 9 A1† 9 B1†
2 18 A1* 18 B1*
327A1 27B1
4 35 A1†,B1 35 A1,B1†
5 44 A1*,B1 44 A1,B1*
6 53 A1,B1 53 A1,B1
7 56 A1†,A2,B1 62 A1,B1†,B2
8 65 A1*,A2,B1 71 A1,B1*,B2
9 74 A1,A2,B1 80 A1,B1,B2
10 82 A1†,A2,B1,B2 82 A1,A2,B1†,B2
11 91 A1*,A2,B1,B2 91 A1,A2,B1*,B2
12 100 A1,A2,B1,B2 100 A1,A2,B1,B2
*Unloaded compressor.
†Two unloaders, both unloaded.
NOTE: These capacity control steps may vary due to lag compressor sequencing.
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