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TABLE 7– ELECTRIC HEAT DATA (1 PHASE) – CB30M–21/26 & CB30M–31
Blower Coil
Electric Heat kW,
Model Number
Number of
Volts
kW
Btuh
Blower
Motor
{Minimum
Circuit Ampacity
& Shipping Weight
Amps
Circuit 1 Circuit 2
b 208/230v–1 ph b
208 1.9 6,400 1.5 13 – – – –
ECB29-2.5
220 2.1 7,200 1.5 14 – – – –
.
4 lbs. (2 kg)
230 2.3 7,800 1.5 14 – – – –
240 2.5 8,500 1.5 15 – – – –
208 3.8 12,800 1.5 25 – – – –
-
(28K31)
220 4.2 14,300 1.5 26 – – – –
-
(28K32)
230 4.6 15,700 1.5 27 – – – –
CB30M-21/26
.
240 5.0 17,100 1.5 28 – – – –
CB30U-21/26
208 6.0 20,500 1.5 38 – – – –
-
(28K33)
220 6.7 22,900 1.5 40 – – – –
-
(28K34)
230 7.3 25,100 1.5 42 – – – –
.
240 8.0 27,300 1.5 44 – – – –
208 7.5 25,600 1.5 47 – – – –
-
(28K35)
220 8.4 28,700 1.5 50 – – – –
-
(28K36)
230 9.2 31,400 1.5 52 – – – –
.
240 10.0 34,100 1.5 54 – – – –
208 3.8 12,800 1.73 25 – – – –
-
(28K31)
220 4.2 14,300 1.73 26 – – – –
-
(28K32)
230 4.6 15,700 1.73 27 – – – –
.
240 5.0 17,100 1.73 28 – – – –
208 6.0 20,500 1.73 38 – – – –
-
(28K33)
220 6.7 22,900 1.73 40 – – – –
-
(28K34)
230 7.3 25,100 1.73 42 – – – –
.
240 8.0 27,300 1.73 44 – – – –
208 7.5 25,600 1.73 47 – – – –
CB30M-31
-
(28K35)
220 8.4 28,700 1.73 50 – – – –
CB30U-31
-
(28K36)
230 9.2 31,400 1.73 52 – – – –
.
240 10.0 34,100 1.73 54 – – – –
208 9.4 32,000 1.73 21 38
ECB29-12.5CB
220 10.5 35,800 1.73 22 40
.
10 lbs. (5 kg)
230 11.5 39,200 1.73 23 42
240 12.5 42,600 1.73 24 43
208 11.3 38,400 1.73 25 45
ECB29-15CB
220 12.6 43,000 1.73 26 48
10 lbs. (5 kg)
230 13.5 47,000 1.73 27 52
240 15.0 51,200 1.73 28 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.
Minimum circuit ampacity for blower motor only.
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