Lennox CB29M-21, Unit Information

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Page 20
TABLE 9– ELECTRIC HEAT DATA (1 PHASE) – CB30M–51 & CB30M–65
Blower Coil
Model
Electric Heat kW,
Model Number
Number of
St
Volts
I t
kW
I t
Btuh
I t
Blower
Motor
{
Minimum Circuit Ampacity
Model
Number
Model Number
& Shipping Weight
Steps Input Input Input
Motor
Amps
Circuit 1 Circuit 2 Circuit 3
b
208/230v–1 ph
b
ECB29-5
(28K31)
208 3.8 12,800 2.4 26 – – – – – – – –
5 kW
(28K31)
ECB29-5CB 1 step
220 4.2 14,300 2.4 27 – – – – – – – –
5 kW
ECB29-5CB
(28K32)
( k )
1 step
230 4.6 15,700 2.4 28 – – – – – – – –
( )
4 lbs. (2 kg)
240 5.0 17,100 2.4 29 – – – – – – – –
ECB29-8
(28K33)
208 6.0 20,500 2.4 39 – – – – – – – –
8 kW
(28K33)
ECB29-8CB 2 steps
220 6.7 22,900 2.4 41 – – – – – – – –
8 kW
ECB29-8CB
(28K34)
( k )
2 steps
230 7.3 25,100 2.4 43 – – – – – – – –
( )
4 lbs. (2 kg)
240 8.0 27,300 2.4 45 – – – – – – – –
ECB29-10
(28K35)
208 7.5 25,600 2.4 48 – – – – – – – –
10 kW
(28K35)
ECB29-10CB 2 steps
220 8.4 28,700 2.4 51 – – – – – – – –
10 kW
ECB29-10CB
(28K36)
( k )
2 steps
230 9.2 31,400 2.4 53 – – – – – – – –
( )
5 lbs. (2 kg)
240 10.0 34,100 2.4 55 – – – – – – – –
208 9.4 32,000 2.4 22 38 – – – –
CB30M-51
CB30U 51
12 5 kW
ECB29-12.5CB
(28K37) 3 steps
220 10.5 35,800 2.4 23 40 – – – –
CB30U-51
12.5 kW
(28K37)
10 lbs. (5 kg)
3 steps
230 11.5 39,200 2.4 24 42 – – – –
10 lbs. (5 kg)
240 12.5 42,600 2.4 25 43 – – – –
208 11.3 38,400 2.4 26 45 – – – –
15 kW
ECB29-15CB
(28K38)
3 steps
220 12.6 43,000 2.4 27 48 – – – –
15 kW
(28K38)
10 lbs. (5 kg)
3 steps
230 13.5 47,000 2.4 28 49 – – – –
10 lbs. (5 kg)
240 15.0 51,200 2.4 29 52 – – – –
208 15.0 51,200 2.4 48 45 – – – –
20 kW
ECB29-20CB
(28K39)
4 steps
220 16.8 57,300 2.4 51 48 – – – –
20 kW
(28K39)
14 lbs. (6 kg)
4 steps
230 18.4 62,700 2.4 53 49 – – – –
14 lbs. (6 kg)
240 20.0 68,200 2.4 55 52 – – – –
208 18.8 64,100 2.4 41 38 38
25 kW
ECB29-25CB
(28K40)
5 steps
220 21.0 71,700 2.4 43 40 40
25 kW
(28K40)
18 lbs. (8 kg)
5 steps
230 23.0 78,300 2.4 45 42 42
18 lbs. (8 kg)
240 25.0 85,300 2.4 47 43 43
ECB29-5
(28K31)
208 3.8 12,800 3.9 28 – – – – – – – –
5 kW
(28K31)
ECB29-5CB 1 step
220 4.2 14,300 3.9 29 – – – – – – – –
5 kW
ECB29-5CB
(28K32)
( k )
1 step
230 4.6 15,700 3.9 30 – – – – – – – –
( )
4 lbs. (2 kg)
240 5.0 17,100 3.9 31 – – – – – – – –
ECB29-8
(28K33)
208 6.0 20,500 3.9 41 – – – – – – – –
8 kW
(28K33)
ECB29-8CB 2 steps
220 6.7 22,900 3.9 43 – – – – – – – –
8 kW
ECB29-8CB
(28K34)
( k )
2 steps
230 7.3 25,100 3.9 45 – – – – – – – –
( )
4 lbs. (2 kg)
240 8.0 27,300 3.9 47 – – – – – – – –
ECB29-10
(28K35)
208 7.5 25,600 3.9 50 – – – – – – – –
10 kW
(28K35)
ECB29-10CB 2 steps
220 8.4 28,700 3.9 53 – – – – – – – –
10 kW
ECB29-10CB
(28K36)
( k )
2 steps
230 9.2 31,400 3.9 55 – – – – – – – –
( )
5 lbs. (2 kg)
240 10.0 34,100 3.9 57 – – – – – – – –
208 9.4 32,000 3.9 24 38 – – – –
12 5 kW
ECB29-12.5CB
(28K37)
3 steps
220 10.5 35,800 3.9 25 40 – – – –
12.5 kW
(28K37)
10 lbs. (5 kg)
3 steps
230 11.5 39,200 3.9 26 42 – – – –
CB30M-65
CB30U 65
10 lbs. (5 kg)
240 12.5 42,600 3.9 27 43 – – – –
CB30U-65
208 11.3 38,400 3.9 28 45 – – – –
15 kW
ECB29-15CB
(28K38) 3 steps
220 12.6 43,000 3.9 29 48 – – – –
15 kW
(28K38)
10 lbs. (5 kg)
3 steps
230 13.5 47,000 3.9 29 50 – – – –
10 lbs. (5 kg)
240 15.0 51,200 3.9 31 52 – – – –
208 15.0 51,200 3.9 50 45 – – – –
20 kW
ECB29-20CB
(28K39)
4 steps
220 16.8 57,300 3.9 53 48 – – – –
20 kW
(28K39)
14 lbs. (6 kg)
4 steps
230 18.4 62,700 3.9 55 50 – – – –
14 lbs. (6 kg)
240 20.0 68,200 3.9 57 52 – – – –
208 18.8 64,100 3.9 43 38 38
25 kW
ECB29-25CB
(28K40) 5 steps
220 21.0 71,700 3.9 45 40 40
25 kW
(28K40)
18 lbs. (8 kg)
5 steps
230 23.0 78,300 3.9 47 42 42
18 lbs. (8 kg)
240 25.0 85,300 3.9 48 43 43
208 22.5 76,900 3.9 50 45 45
30 kW
ECB29-30CB
(28K41)
5 steps
220 25.2 86,000 3.9 53 48 48
30 kW (28K41)
19 lbs. (9 kg)
5 steps
230 27.5 94,000 3.9 55 50 50
19 lbs. (9 kg)
240 30.0 102,400 3.9 57 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.
Minimum circuit ampacity for blower motor only.