Lennox ELITE 12GCS Series Unit Information page 16

6−Circuit Breaker CB1 and CB2
ECH26−15, −20,
Line voltage connections are made to circuit breakers CB1 and
CB2 in electric heat sections with circuit breakers. Table 4
shows amp rating for each circuit breaker used. Two−pole cir-
cuit breakers are used.
Electric
Packaged Unit Heater
Model No. Model No.
Model No. Model No.
& Net Weight
ECH29−05 ECH29 05
(71K18) (71K18)
4 lbs. (2 kg.) 4 lbs. (2 kg.)
ECH29 07 ECH29−07
(71K64) (71K64)
5 lbs. (2 kg.) 5 lbs. (2 kg.)
12CHP024 12CHP024
12CHP030
ECH29−10 ECH29 10
(71K19) (71K19)
5 lbs. (2 kg.) 5 lbs. (2 kg.)
ECH29 15 ECH29−15
(71K20) (71K20)
17 lbs. (8 kg.) 17 lbs. (8 kg.)
ECH29−05 ECH29 05
(71K18) (71K18)
4 lbs. (2 kg.) 4 lbs. (2 kg.)
ECH29−07 ECH29 07
(71K64) (71K64)
12CHP036 12CHP036
5 lbs. (2 kg.) 5 lbs. (2 kg.)
12CHP042 12CHP042
12CHP048
ECH29−10 ECH29 10
12CHP060 12CHP060
(71K19) (71K19)
5 lbs. (2 kg.) 5 lbs. (2 kg.)
ECH29−15 ECH29 15
(71K20) (71K20)
17 lbs. (8 kg.) 17 lbs. (8 kg.)
ECH29 20 ECH29−20
12CHP048 12CHP048
(71K21) (71K21)
12CHP060
20 lbs. (9 kg.)
20 lbs. (9 kg.)
ECH29−25 ECH29 25
12CHP060 12CHP060
(71K22) (71K22)
20 lbs. (9 kg.) 20 lbs. (9 kg.)

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).
TABLE 5
ELECTRIC HEAT 12CHP UNITS
No. of
Volts
kW Input Steps &
Input Input
Phase Phase
1 step 1 step
5 5
( p (1 phase) )
1 step 1 step
7 7
( p (1 phase) )
1 step 1 step
10 10
( p (1 phase) )
1 step 1 step
15 15
(1 phase) ( p )
1 step 1 step
5 5
( p (1 phase) )
1 step 1 step
7 7
(1 phase) ( p )
1 step 1 step
10 10
( p (1 phase) )
1 step 1 step
15 15
( p (1 phase) )
1 step 1 step
20 20
(1 phase) ( p )
1 step 1 step
25 25
(1 phase) ( p )
Page 16
TABLE 4
ECH29 Circuit Breakers
UNIT CB1 AMPS
ECH29−15−1−P 60 AMPS
ECH29−20−1−P 60 AMPS
Electric Electric
Heat Heat
kW kW Btuh Btuh
Input Input
208 3.8 12,800
220 4.2 14,300
230 4.6 15,700
240 5.0 17,100
208 5.3 17,900
220 5.9 20,100
230 6.4 21,900
240 7.0 23,900
208 7.5 25,600
220 8.4 28,700
230 9.2 31,300
240 10.0 34,100
208 11.3 38,400
220 12.6 43,000
230 13.8 47,000
240 15.0 51,200
208 3.8 12,800
220 4.2 14,300
230 4.6 15,700
240 5.0 17,100
208 5.3 17,900
220 5.9 20,100
230 6.4 21,900
240 7.0 23,900
208 7.5 25,600
220 8.4 28,700
230 9.2 31,300
240 10.0 34,100
208 11.3 38,400
220 12.6 43,000
230 13.8 47,000
240 15.0 51,200
208 15.0 51,200
220 16.8 57,300
230 18.4 62,700
240 20.0 68,200
208 18.8 64,100
220 21.0 71,700
230 23.0 78,300
240 25.0 85,300
CB2 AMPS
30 AMPS
60 AMPS
Heater Only

Minimum
Circuit Ampacity
Circuit 1 Circuit 2
26 − − −
27.2 − − −
28.3 − − −
29.5 − − −
35 − − −
36.7 − − −
38.3 − − −
39.9 − − −
48.6 − − −
51.1 − − −
53.2 − − −
55.5 − − −
48.6 22.6
51.1 23.9
53.2 25
55.5 26.1
27.1 − − −
28.1 − − −
29.2 − − −
30.3 − − −
36.1 − − −
37.6 − − −
39.1 − − −
40.7 − − −
49.4 − − −
51.9 − − −
54.1 − − −
56.4 − − −
49.4 22.9
51.9 23.9
54.1 25
56.4 26.1
49.6 45.1
52.2 47.8
54.4 50
56.6 52.1
49.6 45.1
52.2 47.8
54.4 50
56.6 52.1