Filter
Top Products
Table 4C — Capacity Control Steps, 130-210 and Associated Modular Units (cont)
UNIT
SIZE
CONTROL
STEPS
LOADING SEQUENCE A LOADING SEQUENCE B
%
Compressors
%
CompressorsDisplacement Displacement
(Approx) (Approx)
190, 290A, 360A/B,
390B (60 Hz)
A1,B1
1
2
3
4
5
6
13
25
41
56
78
100
A1
A1,B1
A1,A2,B1
A1,A2,B1,B2
A1,A2,A3,B1,B2
A1,A2,A3,B1,B2,B3
13
25
41
56
78
100
B1
A1,B1
A1,B1,B2
A1,A2,B1,B2
A1,A2,B1,B2,B3
A1,A2,A3,B1,B2,B3
190, 290A, 360A/B,
390B (60 Hz)
A1**,B1
1
2
3
4
5
6
7
8
9
10
11
12
9
13
21
25
37
41
53
56
74
78
96
100
A1*
A1
A1*,B1
A1,B1
A1*,A2,B1
A1,A2,B1
A1*,A2,B1,B2
A1,A2,B1,B2
A1*,A2,A3,B1,B2
A1,A2,A3,B1,B2
A1*,A2,A3,B1,B2,B3
A1,A2,A3,B1,B2,B3
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
190, 290A, 360A/B,
390B (60 Hz)
A1,B1**
1
2
3
4
5
6
7
8
9
10
11
12
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
9
13
21
25
37
41
53
56
74
78
96
100
B1*
B1
A1,B1*
A1,B1
A1,B1*,B2
A1,B1,B2
A1,A2,B1*,B2
A1,A2,B1,B2
A1,A2,B1*,B2,B3
A1,A2,B1,B2,B3
A1,A2,A3,B1*,B2,B3
A1,A2,A3,B1,B2,B3
190, 290A, 360A/B,
390B (60 Hz)
A1**,B1**
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
9
13
18
21
25
33
37
41
49
53
56
71
74
78
93
96
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
A1*,A2,A3,B1*,B2,B3
A1*,A2,A3,B1,B2,B3
A1,A2,A3,B1,B2,B3
9
13
18
21
25
33
37
41
49
53
56
71
74
78
93
96
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,B1*,B2,B3
A1,A2,B1*,B2,B3
A1,A2,B1,B2,B3
A1*,A2,A3,B1*,B2,B3
A1,A2,A3,B1*,B2,B3
A1,A2,A3,B1,B2,B3
190, 290A, 360A,
390B (50 Hz)
A1,B1
1
2
3
4
5
6
17
33
50
67
83
100
A1
A1,B1
A1,A2,B1
A1,A2,B1,B2
A1,A2,A3,B1,B2
A1,A2,A3,B1,B2,B3
17
33
50
67
83
100
B1
A1,B1
A1,B1,B2
A1,A2,B1,B2
A1,A2,B1,B2,B3
A1,A2,A3,B1,B2,B3
190, 290A, 360A,
390B (50 Hz)
A1**,B1
1
2
3
4
5
6
7
8
9
10
11
12
11
17
28
33
44
50
61
67
78
83
94
100
A1*
A1
A1*,B1
A1,B1
A1*,A2,B1
A1,A2,B1
A1*,A2,B1,B2
A1,A2,B1,B2
A1*,A2,A3,B1,B2
A1,A2,A3,B1,B2
A1*,A2,A3,B1,B2,B3
A1,A2,A3,B1,B2,B3
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
*Unloaded compressor.
†Compressor unloader, standard.
**Compressor unloader, accessory.
††Two unloaders, both unloaded.
NOTE: These capacity control steps may vary due to lag compressor
sequencing.
21