Carrier Aero 39MN Series Installation, Start-Up And Service Instructions Manual page 157

NOMINAL
39M HEATER NO. OF HEATER COIL
UNIT AREA CONTROL COIL FACE
SIZE (sq ft) STEPS* kW VELOCITY
(fpm)
5 500
10 500
15 500
20 500
03W 3 3
25 500
30 500
35 500
10 500
15 500
20 500
06W 5.2 3 30 500
40 500
50 500
60 500
10 500
20 500
30 500
3
40 500
07T 7.13
50 500
60 500
70 500
6
80 500
20 500
30 500
3 40 500
08W 7.4 50 500
60 500
70 500
6
80 500
20 500
30 500
40 500
3
50 500
60 500
7.61
09T
70 500
80 500
6
90 500
100 500
20 500
30 500
3 40 500
50 500
10W 9.9
60 500
75 500
6 90 500
100 500
20 500
30 500
40 500
3
50 500
60 500
70 500
11T 10.26
80 500
90 500
100 500
6
110 500
120 500
130 500
LEGEND
AHRI — Air-Conditioning, Heating and
Refrigeration Institute
FLA — Full Load Amps
*Standard control steps are listed under the Control Step heading. "Free" additional steps of control
are optionally available when the number of sub-circuits exceeds the standard number of control
steps.
†MCA = 1.25 x FLA; for proper wire sizing, refer to Table 310-16 of the NEC (National Electrical
Code).
NOTES:
Table 40 — Electric Heater Data
208/3/60 VOLTS
TEMP
No.
RISE
Total Total
FLA MCA† Sub MOCP FLA MCA†
(F)
Ckt
11 14 17 1 20 12
21 28 35 1 35 24
32 42 52 1 60 36
43 56 69 2 70 48
53 69 87 2 90 60
64 83 104 2 110 72
75 97 122 3 125 84
12 28 35 1 35 24
18 42 52 1 60 36
25 56 69 2 70 48
37 83 104 2 110 72
49 111 139 3 150 96
61 139 174 3 175 120
74 167 208 4 225 145
9 28 35 1 35 24
18 56 69 2 70 48
27 83 104 2 110 72
36 111 139 3 150 96
45 139 173 3 175 120
54 167 208 3 225 144
63 194 243 3 250 168
72 — — — — —
17 56 69 2 70 48
26 83 104 2 110 72
35 111 139 3 150 96
43 139 174 3 175 120
52 167 208 4 225 145
60 195 243 5 250 169
69 222 278 5 300 193
17 56 69 2 70 48
25 83 104 2 110 72
34 111 139 3 150 96
42 139 173 3 175 120
50 167 208 3 225 144
59 194 243 3 250 168
67 222 278 3 300 192
76 250 312 3 350 217
84 — — — — —
13 56 69 2 70 48
19 83 104 2 110 72
26 111 139 3 150 96
32 139 174 3 175 120
39 167 208 4 225 145
48 208 261 5 300 181
58 250 313 6 350 217
65 278 347 6 350 241
12 56 69 2 70 48
19 83 104 2 110 72
25 111 139 3 150 96
31 139 173 3 175 120
37 167 208 3 225 144
44 194 243 3 250 168
50 222 278 3 300 192
56 250 312 3 350 217
62 278 347 3 350 241
68 — — — — —
75 — — — — —
81 — — — — —
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
240/3/60 VOLTS 480/3/60 VOLTS
No. No.
Total
Sub MOCP FLA MCA† Sub
Ckt Ckt
15 1 20 6 8 1
30 1 35 12 15 1
45 1 50 18 23 1
60 2 70 24 30 1
75 2 80 30 38 1
90 2 100 36 45 1
105 2 110 42 53 1
30 1 35 12 15 1
45 1 50 18 23 1
60 2 70 24 30 1
90 2 100 36 45 1
120 3 125 48 60 2
151 3 175 60 75 2
181 4 200 72 90 2
30 1 35 12 15 1
60 2 70 24 30 1
90 2 100 36 45 1
120 3 125 48 60 2
150 3 175 60 75 2
180 3 200 72 90 2
210 3 225 84 105 2
-— — — 96 120 3
60 2 70 24 30 1
90 2 100 36 45 1
120 3 125 48 60 2
151 3 175 60 75 2
181 4 200 72 90 2
211 4 225 84 105 2
241 5 250 96 120 3
60 2 70 24 30 1
90 2 100 36 45 1
120 3 125 48 60 2
150 3 175 60 75 2
180 3 200 72 90 2
210 3 225 84 105 2
241 3 250 96 120 3
271 3 300 108 135 3
— — — 120 150 3
60 2 70 24 30 1
90 2 100 36 45 1
120 3 125 48 60 2
151 3 175 60 75 2
181 4 200 72 90 2
226 4 250 90 113 2
271 5 300 108 135 3
301 6 350 120 151 3
60 2 70 24 30 1
90 2 100 36 45 1
120 3 125 48 60 2
150 3 175 60 75 2
180 3 200 72 90 2
210 3 225 84 105 2
241 3 250 96 120 3
271 3 300 108 135 3
301 3 350 120 150 3
— — — 132 165 3
— — — 144 180 3
— — — 156 195 3
1. Subcircuits are internal heater circuits of 48 amps or less.
2. Electric heat performance is not within the scope of AHRI standard 430 certification.
3. To avoid damage due to overheating, minimum face velocity cannot fall bellow 350
fpm.
4. Heaters up to (and including) 60 kW have 3 control steps; beyond 60 k, 6 steps are
standard.
5. Heater kW offering is controlled by AHUBuilder® program. This table is for reference
only.
157
600/3/60 VOLTS 380/3/50 VOLTS
No.
Total Total
MOCP FLA MCA† Sub MOCP FLA MCA†
Ckt
20 5 6 1 20 8
20 10 12 1 20 15
25 14 18 1 20 23
35 19 24 1 25 30
40 24 30 1 35 38
50 29 36 1 40 46
60 34 42 1 45 53
20 10 12 1 20 15
25 14 18 1 20 23
35 19 24 1 25 30
50 29 36 1 40 46
70 39 48 1 50 61
80 48 60 2 70 76
100 58 72 2 80 91
20 10 12 1 15 15
35 19 24 1 25 30
50 29 36 1 40 46
70 38 48 1 50 61
80 48 60 2 70 76
100 58 72 2 80 91
110 67 84 2 90 106
125 — — — — 122
35 19 24 1 25 30
50 29 36 1 40 46
70 39 48 1 50 61
80 48 60 2 70 76
100 58 72 2 80 91
110 67 84 2 90 106
125 77 96 2 100 122
35 19 24 1 25 30
50 29 36 1 40 46
70 38 48 1 50 61
80 48 60 2 70 76
100 58 72 2 80 91
110 67 84 2 90 106
125 77 96 2 100 122
150 87 108 2 110 137
175 96 120 3 125 —
35 19 24 1 25 30
50 29 36 1 40 46
70 39 48 1 50 61
80 48 60 2 70 76
100 58 72 2 80 91
125 72 90 2 100 114
150 87 108 2 110 137
175 96 120 3 125 152
35 19 24 1 25 30
50 29 36 1 40 46
70 38 48 1 50 61
80 48 60 2 70 76
100 58 72 2 80 91
110 67 84 2 90 106
125 77 96 2 100 122
150 87 108 2 110 137
175 96 120 3 125 152
175 106 132 3 150 167
200 115 144 3 150 182
200 125 156 3 175 198
No.
Sub MOCP
Ckt
10 1 20
19 1 20
29 1 30
38 1 40
48 1 50
57 1 60
67 2 70
19 1 20
29 1 30
38 1 40
57 1 60
76 2 80
95 2 100
114 2 125
19 1 20
38 1 40
57 1 60
76 2 80
95 2 100
114 2 125
133 3 150
152 3 175
38 1 40
57 1 60
76 2 80
95 2 100
114 2 125
133 3 150
152 3 175
38 1 40
57 1 60
76 2 80
95 2 100
114 2 125
133 3 150
152 3 175
171 3 175
— — —
38 1 40
57 1 60
76 2 80
95 2 100
114 2 125
143 3 150
171 3 175
190 4 200
38 1 40
57 1 60
76 2 80
95 2 100
114 2 125
133 3 150
152 3 175
171 3 175
190 3 200
209 3 225
228 3 250
247 3 250