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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)
150, 230A, 245A,
255A (60 Hz)
A1†**,B1†
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
6
11
15
24
33
38
42
49
53
58
66
75
80
85
91
95
100
A1††
A1*
A1
A1††,B1*
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,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
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
9
18
27
33
42
46
51
60
69
75
85
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,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
15
16
17
6
11
15
24
33
38
42
49
53
58
66
75
80
85
91
95
100
A1††
A1*
A1
A1††,B1*
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,B1,B2
A1††,A2,A3,B1,B2
A1*,A2,A3,B1,B2
A1,A2,A3,B1,B2
9
18
27
33
42
46
51
60
69
75
86
91
100
—
—
—
—
B1††
B1*
B1
A1,B1*
A1,kB1
A1*,B1††,B2
A1,B1††,B2
A1,B1*,B2
A1,B1,B2
A1,A2,B1*,B2
A1,A2,B1,B2
A1,A2,A3,B1*,B2
A1,A2,A3,B1,B2
—
—
—
—
150, 230A, 245A,
255A (50 Hz)
A1†,B1†
1
2
3
4
5
6
7
8
9
10
11
12
13
14
13
20
26
33
40
46
53
60
66
73
80
86
93
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
13
20
26
33
40
46
53
60
66
73
80
86
93
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
150, 230A, 245A,
255A (50 Hz)
A1†**,B1†
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
6
13
20
26
33
40
46
53
60
66
73
80
86
93
100
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
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.
17