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Table 4C — Capacity Control Steps, 130-210 and Associated Modular Units (cont)
UNIT
30GN
CONTROL
STEPS
LOADING SEQUENCE A LOADING SEQUENCE B
%
Compressors
%
CompressorsDisplacement Displacement
(Approx) (Approx)
130 (50 Hz)
A1†**,B1†
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
6
10
14
22
31
35
39
40
49
53
57
65
74
78
82
83
91
96
100
A1††
A1*
A1
A1††,B1*
A1††,B1
A1*,B1
A1,B1
A1††,A2,B1*
A1††,A2,B1
A1*,A2,B1
A1,A2,B1
A1††,A2,B1*,B2
A1††,A2,B1,B2
A1*,A2,B1,B2
A1,A2,B1,B2
A1††,A2,A3,B1*,B2
A1††,A2,A3,B1,B2
A1*,A2,A3,B1,B2
A1,A2,A3,B1,B2
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
130 (50 Hz)
A1†,B1†**
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
8
16
25
31
39
43
47
56
64
65
74
82
83
91
100
B1††
B1*
B1
A1,B1*
A1,B1
A1*,B1††,B2
A1,B1††,B2
A1,B1*,B2
A1,B1,B2
A1,A2,B1††,B2
A1,A2,B1*,B2
A1,A2,B1,B2
A1,A2,A3,B1††,B2,B3
A1,A2,A3,B1*,B2,B3
A1,A2,A3,B1,B2,B3
130 (50 Hz)
A1†**,B1†**
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
6
10
14
22
31
35
39
40
49
53
57
65
74
78
82
83
91
96
100
A1††
A1*
A1
A1††,B1*
A1††,B1
A1*,B1
A1,B1
A1††,A2,B1*
A1††,A2,B1
A1*,A2,B1
A1,A2,B1
A1††,A2,B1*,B2
A1††,A2,B1,B2
A1*,A2,B1,B2
A1,A2,B1,B2
A1††,A2,A3,B1*,B2
A1††,A2,A3,B1,B2
A1*,A2,A3,B1,B2
A1,A2,A3,B1,B2
8
16
25
31
39
43
47
56
64
65
74
82
83
91
100
—
—
—
—
B1††
B1*
B1
A1,B1*
A1,B1
A1*,B1††,B2
A1,B1††,B2
A1,B1*,B2
A1,B1,B2
A1,A2,B1††,B2
A1,A2,B1*,B2
A1,A2,B1,B2
A1,A2,A3,B1††,B2
A1,A2,A3,B1*,B2
A1,A2,A3,B1,B2
—
—
—
—
150, 230A, 245A,
255A (60 Hz)
A1†,B1†
1
2
3
4
5
6
7
8
9
10
11
12
13
14
11
15
29
38
42
44
53
58
71
80
85
86
95
100
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
A1*,A2,A3,B1*,B2
A1*,A2,A3,B1,B2
A1,A2,A3,B1,B2
18
27
29
33
42
55
60
69
71
75
85
86
91
100
B1*
B1
A1*,B1*
A1,B1*
A1,B1
A1*,B1*,B2
A1,B1*,B2
A1,B1,B2
A1*,A2,B1*,B2
A1,A2,B1*,B2
A1,A2,B1,B2
A1*,A2,A3,B1*,B2
A1,A2,A3,B1*,B2
A1,A2,A3,B1,B2
*Unloaded compressor.
†Compressor unloader, standard.
**Compressor unloader, accessory.
††Two unloaders, both unloaded.
NOTE: These capacity control steps may vary due to lag compressor
sequencing.
16