Compressor Step Control - Daikin Aurora Series Service Manual

SiUS341802E
5.4

Compressor Step Control

Compressor operations vary with the following steps according to information in Compressor PI Control on page 48.
Furthermore, the operating priority of compressors is subject to information in Operating Priority and Rotation of
Compressors on page 49.
Single unit installation
RXLQ72TA
RXYQ72-120TA
Step No. rps
1 15.0
2 15.2
3 15.4
4 15.6
5 15.9
6 16.2
7 16.5
8 16.8
9 17.1
10 17.4
11 17.7
12 18.0
13 18.3
14 18.6
15 19.0
16 19.4
17 19.8
18 20.1
19 20.5
20 20.7
21 21.0
22 21.3
23 21.6
24 21.9
25 22.2
26 22.5
27 22.9
28 23.2
29 23.5
30 23.8
31 24.2
32 24.5
33 24.9
34 25.2
35 25.5
36 25.9
37 26.3
38 26.6
39 27.0
40 27.4
41 27.8
42 28.1
43 28.5
44 29.0
45 29.4
46 29.8
47 30.2
48 30.6
49 31.0
50 31.5
51 31.9
52 32.4
53 32.8
54 33.3
55 33.8
56 34.2
57 34.7
58 35.2
59 35.7
60 36.2
Note:
1. Depending on the operating conditions of compressors, the compressors may run in patterns other
than those aforementioned.
Functions and Control
Step No. rps Step No.
61 36.7 121
62 37.2 122
63 37.7 123
64 38.3 124
65 38.8 125
66 39.3 126
67 39.9 127
68 40.5 128
69 41.0 129
70 41.6 130
71 42.2 131
72 42.8 132
73 43.4 133
74 44.0 134
75 44.6 135
76 45.2 136
77 45.8 137
78 46.5 138
79 47.1 139
80 47.8 140
81 48.5 141
82 49.1 142
83 49.8 143
84 50.5 144
85 51.1 145
86 52.0 146
87 52.7 147
88 53.4 148
89 54.2 149
90 54.9 150
91 55.7 151
92 56.5 152
93 57.3 153
94 58.1 154
95 58.9 155
96 59.7 156
97 60.5 157
98 61.4 158
99 62.3
100 63.4
101 64.0
102 64.9
103 65.6
104 66.6
105 67.7
106 68.6
107 69.6
108 70.6
109 71.6
110 72.6
111 73.6
112 74.6
113 75.7
114 76.7
115 77.8
116 78.9
117 80.0
118 81.1
119 82.2
120 83.4
rps
84.5
85.7
86.9
88.1
89.4
90.6
91.9
93.2
94.5
95.8
97.2
98.5
99.9
101.3 RXYQ72TA upper limit
102.7
104.2
105.6
107.1
108.4
110.1
111.7
113.2
114.8
116.4
118.0
119.7 RXYQ96TA upper limit
121.4
123.1
124.8
126.5
128.3
130.1
132.0
133.8
135.7
137.6
139.5
140.0 RXLQ72TA, RXYQ120TA
upper limit
Basic Control
50