Carrier 30GTN Service And Troubleshooting Manual page 21

Table 5B — Part Load Data Percent Displacement, With Accessory Unloaders
UNIT
30GTN,GTR
040 (60 Hz)
040 (50 Hz)
045 (60 Hz)
045 (50 Hz)
050 (60 Hz)
050 (50 Hz)
060 (60 Hz)
060 (50 Hz)
070 (60 Hz)
070 (50 Hz)
080, 230B (60 Hz)
080, 230B (50 Hz)
090, 245B (60 Hz)
*Unloaded compressor.
†Two unloaders, both unloaded.
NOTE: These capacity control steps may vary due to lag compressor sequencing.
LOADING SEQUENCE A
CONTROL
%
STEPS
Displacement
(Approx)
1 25
2 50
3 75
4 100
1 24
2 47
3 61
4 76
5 100
1 31
2 44
3 69
4 87
5 100
1 28
2 42
3 67
4 87
5 100
1 33
2 50
3 67
4 83
5 100
1 19
2 27
3 49
4 65
5 73
6 76
7 92
8 100
1 11
2 22
3 34
4 41
5 55
6 67
7 78
8 89
9 100
1 8
2 17
3 25
4 33
5 46
6 54
7 62
8 71
9 84
10 92
11 100
1 9
2 18
3 27
4 35
5 44
6 53
7 56
8 65
9 74
10 82
11 91
12 100
Compressors Displacement
A1*
A1
A1*,B1
A1,B1
A1*
A1
A1*,B1*
A1*,B1
A1,B1
A1*
A1
A1*,B1*
A1*,B1
A1,B1
A1*
A1
A1*,B1*
A1*,B1
A1,B1
A1*
A1
A1*,B1*
A1*,B1
A1,B1
A1*
A1
A1*,B1*
A1*,B1
A1,B1
A1*,A2,B1*
A1*,A2,B1
A1,A2,B1
A1†
A1*
A1
A1†,B1*
A1†,B1
A1*,B1
A1,B1
A1*,A2,B1
A1,A2,B1
A1†
A1*
A1
A1†,B1*
A1†,B1
A1*,B1
A1,B1
A1†,A2,B1*
A1†,A2,B1
A1*,A2,B1
A1,A2,B1
A1†
A1*
A1
A1†,B1
A1*,B1
A1,B1
A1†,A2,B1
A1*,A2,B1
A1,A2,B1
A1†,A2,B1,B2
A1*,A2,B1,B2
A1,A2,B1,B2
21
LOADING SEQUENCE B
%
Compressors
(Approx)
25 B1*
50 B1
75 A1,B1*
100 A1,B1
37 B1*
53 B1
61 A1*,B1*
84 A1,B1*
100 A1,B1
38 B1*
56 B1
69 A1*,B1*
82 A1,B1*
100 A1,B1
38 B1*
58 B1
67 A1*,B1*
80 A1,B1*
100 A1,B1
33 B1*
50 B1
66 A1*,B1*
83 A1,B1*
100 A1,B1
31 B1*
47 B1
49 A1*,B1*
57 A1,B1*
73 A1,B1
76 A1*,A2,B1*
84 A1,A2,B1*
100 A1,A2,B1
15 B1†
30 B1*
44 B1
48 A1,B1†
63 A1,B1*
78 A1,B1
85 A1,A2,B1*
100 A1,A2,B1
— —
13 B1†
25 B1*
38 B1
50 A1,B1*
62 A1,B1
67 A1*,A2,B1†
75 A1,A2,B1†
88 A1,A2,B1*
100 A1,A2,B1
— —
— —
9 B1†
18 B1*
27 B1
35 A1,B1†
44 A1,B1*
53 A1,B1
62 A1,B1†,B2
71 A1,B1*,B2
80 A1,B1,B2
82 A1,A2,B1†,B2
91 A1,A2,B1*,B2
100 A1,A2,B1,B2