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Table PD-28 — 20 to 75-Tons Electric Heat Air Temperature Rise
KW
Total
Input
MBh
4000
30
102.4
23.6
50
170.6
39.3
70
238.8
55.0
90
307 .1
110
375.3
130
443.6
150
511.8
170
580.1
190
648.3
Notes:
1. Maximum permitted air temperature rise; 20-30 tons (UL — 50 F) (CSA — 60 F), 40 — 60 ton (UL/CSA — 50 F).
2. Air temperature rise = kw x 3413 ÷ (scfm x 1.085)
3. All heaters on units provide 3 increments of capacity.
4. 200 and 230 volt electric heat rooftops require dual power supplies to the control box. All other rooftops have single power connections. See Electrical Data Section for
electrical sizing information.
Table PD-29— 90 To 130-Ton Electric Heat Air Temperature Rise
KW
Total
Input
MBh
24000
190
648.3
24.9
Notes:
1. Air Temperature = kw x 3413 ÷ (scfm x 1.085)
2. Only available in 460/60/3 and 575/60/3 voltages.
Table PD-30— Electric Heat KW Ranges
Nominal Voltage
Nominal
Tons
200
230
460
20
30-90
30-110
30-110
25
30-90
30-110
30-130
30
30-110
30-110
30-150
40
50-110
50-110
50-170
50
70-110
70-110
70-190
55
70-110
70-110
70-190
60
90-110
90-110
90-190
70
90-110
90-110
90-190
75
90-110
90-110
90-190
90
NA
NA
190
105
NA
NA
190
115
NA
NA
190
130
NA
NA
190
42
Performance
Data
6000
8000
10000
12000
15.7
11.8
9.4
26.2
19.7
15.7
36.7
27 .5
22.0
47 .2
35.4
28.3
57 .7
43.2
34.6
51.1
40.9
59.0
47 .2
53.5
59.8
Cfm
27000
30000
33000
22.1
19.9
18.1
575
30-110
30-130
30-150
50-170
70-190
70-190
90-190
90-190
90-190
190
190
190
190
Cfm
14000
16000
18000
7 .9
6.7
5.9
5.2
13.1
11.2
9.8
8.7
18.3
15.7
13.8
12.2
23.6
20.2
17 .7
15.7
28.8
24.7
21.6
19.2
34.1
29.2
25.6
22.7
39.3
33.7
29.5
26.2
44.6
38.2
33.4
29.7
49.8
42.7
37 .3
33.2
36000
40000
16.5
15.3
20000
22000
24000
26000
4.7
4.3
3.9
7 .9
7 .1
6.6
11.0
10.0
9.2
14.2
12.9
11.8
10.9
17 .3
15.7
14.4
13.3
20.4
18.6
17 .0
15.7
23.6
21.4
19.7
18.1
26.7
24.3
22.3
20.6
29.9
27 .2
24.9
23.0
RT -PRC010-EN
3.6
6.0
8.5
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