Page 15
TABLE 4– ELECTRIC HEAT DATA (1 PHASE) – CB29M–51 & CB29M–65
Blower Coil
Electric Heat kW,
Number of
Volts
kW
**Btuh
DBlower
*Minimum Circuit Ampacity
Number
& Shipping Weight
teps
nput
nput
nput
Amps
Circuit 1 Circuit 2 Circuit 3
b 208/230v–1 ph b
ECB29-5
208 3.8 12,800 3.8 28 – – – – – – – –
(28K31)
220 4.2 14,300 3.8 29 – – – – – – – –
-
(28K32)
230 4.6 15,700 3.8 30 – – – – – – – –
4 lbs. (2 kg)
240 5.0 17,100 3.8 31 – – – – – – – –
ECB29-8
208 6.0 20,500 3.8 41 – – – – – – – –
(28K33)
220 6.7 22,900 3.8 43 – – – – – – – –
-
(28K34)
230 7.3 25,100 3.8 44 – – – – – – – –
4 lbs. (2 kg)
240 8.0 27,300 3.8 47 – – – – – – – –
ECB29-10
208 7.5 25,600 3.8 50 – – – – – – – –
(28K35)
220 8.4 28,700 3.8 53 – – – – – – – –
-
(28K36)
230 9.2 31,400 3.8 55 – – – – – – – –
5 lbs. (2 kg)
240 10.0 34,100 3.8 57 – – – – – – – –
208 9.4 32,000 3.8 24 38 – – – –
ECB29-12.5CB
220 10.5 35,800 3.8 25 40 – – – –
-
.
10 lbs.
5 k
230 11.5 39,200 3.8 26 42 – – – –
240 12.5 42,600 3.8 27 44 – – – –
208 11.3 38,400 3.8 28 45 – – – –
ECB29-15CB
220 12.6 43,000 3.8 29 48 – – – –
10 lbs.
5 k
230 13.5 47,000 3.8 30 49 – – – –
240 15.0 51,200 3.8 31 52 – – – –
208 15.0 51,200 3.8 50 45 – – – –
ECB29-20CB
220 16.8 57,300 3.8 53 48 – – – –
14 lbs.
6 k
230 18.4 62,700 3.8 55 49 – – – –
240 20.0 68,200 3.8 57 52 – – – –
208 18.8 64,100 3.8 42 38 38
ECB29-25CB
220 21.0 71,700 3.8 45 40 40
18 lbs.
8 k
230 23.0 78,300 3.8 46 42 42
240 25.0 85,300 3.8 48 44 44
ECB29-5
208 3.8 12,800 4.6 29 – – – – – – – –
(28K31)
220 4.2 14,300 4.6 30 – – – – – – – –
-
(28K32)
230 4.6 15,700 4.6 31 – – – – – – – –
4 lbs. (2 kg)
240 5.0 17,100 4.6 32 – – – – – – – –
ECB29-8
208 6.0 20,500 4.6 42 – – – – – – – –
(28K33)
220 6.7 22,900 4.6 44 – – – – – – – –
-
(28K34)
230 7.3 25,100 4.6 45 – – – – – – – –
4 lbs. (2 kg)
240 8.0 27,300 4.6 48 – – – – – – – –
ECB29-10
208 7.5 25,600 4.6 51 – – – – – – – –
(28K35)
220 8.4 28,700 4.6 54 – – – – – – – –
-
(28K36)
230 9.2 31,400 4.6 56 – – – – – – – –
5 lbs. (2 kg)
240 10.0 34,100 4.6 58 – – – – – – – –
208 9.4 32,000 4.6 25 38 – – – –
ECB29-12.5CB
220 10.5 35,800 4.6 26 40 – – – –
.
10 lbs.
5 k
230 11.5 39,200 4.6 27 42 – – – –
240 12.5 42,600 4.6 28 44 – – – –
-
208 11.3 38,400 4.6 28 45 – – – –
ECB29-15CB
220 12.6 43,000 4.6 30 48 – – – –
10 lbs.
5 k
230 13.5 47,000 4.6 30 49 – – – –
240 15.0 51,200 4.6 32 52 – – – –
208 15.0 51,200 4.6 51 45 – – – –
ECB29-20CB
220 16.8 57,300 4.6 54 48 – – – –
14 lbs.
6 k
230 18.4 62,700 4.6 56 49 – – – –
240 20.0 68,200 4.6 58 52 – – – –
208 18.8 64,100 4.6 43 38 38
ECB29-25CB
220 21.0 71,700 4.6 46 40 40
18 lbs.
8 k
230 23.0 78,300 4.6 47 42 42
240 25.0 85,300 4.6 50 44 44
208 22.5 76,900 4.6 51 45 45
ECB29-30CB
220 25.2 86,000 4.6 54 48 48
19 lbs.
9 k
230 27.5 94,000 4.6 56 49 49
240 30.0 102,400 4.6 58 52 52
*Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75_C).
**Electric heater capacity only — does not include additional blower motor heat capacity.
DMinimum circuit ampacity for blower motor only.
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