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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.
TABLE 4
ECH29 Circuit Breakers
UNIT CB1 AMPS CB2 AMPS
ECH29−15−1−P 60 AMPS 30 AMPS
ECH29−20−1−P 60 AMPS 60 AMPS
TABLE 5
ELECTRIC HEAT 12CHP UNITS
Packaged Unit
Model No.
Electric
Heater
Model No.
kW Input
No. of
Steps &
Volts
In
ut
Electric
Heat
kW
Electric
Heat
Btuh
Heater Only
Minimum
Circuit Ampacity
.
.
& Net Weight
Phase
Input
Input
Circuit 1 Circuit 2
208 3.8 12,800 26 − − −
ECH29−05
1 step
220 4.2 14,300 27.2 − − −
71K18
(1 phase)
230 4.6 15,700 28.3 − − −
.
.
240 5.0 17,100 29.5 − − −
208 5.3 17,900 35 − − −
ECH29−07
1 step
220 5.9 20,100 36.7 − − −
71K64
(1 phase)
230 6.4 21,900 38.3 − − −
12CHP024
.
.
240 7.0 23,900 39.9 − − −
12CHP030
208 7.5 25,600 48.6 − − −
ECH29−10
1 step
220 8.4 28,700 51.1 − − −
71K19
(1 phase)
230 9.2 31,300 53.2 − − −
.
.
240 10.0 34,100 55.5 − − −
208 11.3 38,400 48.6 22.6
ECH29−15
1 step
220 12.6 43,000 51.1 23.9
71K20
(1 phase)
230 13.8 47,000 53.2 25
.
.
240 15.0 51,200 55.5 26.1
208 3.8 12,800 27.1 − − −
ECH29−05
1 step
220 4.2 14,300 28.1 − − −
71K18
(1 phase)
230 4.6 15,700 29.2 − − −
.
.
240 5.0 17,100 30.3 − − −
208 5.3 17,900 36.1 − − −
ECH29−07
1 step
220 5.9 20,100 37.6 − − −
12CHP036
71K64
(1 phase)
230 6.4 21,900 39.1 − − −
12CHP042
.
.
240 7.0 23,900 40.7 − − −
12CHP048
208 7.5 25,600 49.4 − − −
12CHP060
ECH29−10
1 step
220 8.4 28,700 51.9 − − −
71K19
(1 phase)
230 9.2 31,300 54.1 − − −
.
.
240 10.0 34,100 56.4 − − −
208 11.3 38,400 49.4 22.9
ECH29−15
1 step
220 12.6 43,000 51.9 23.9
71K20
(1 phase)
230 13.8 47,000 54.1 25
.
.
240 15.0 51,200 56.4 26.1
208 15.0 51,200 49.6 45.1
12CHP048
ECH29−20
1 step
220 16.8 57,300 52.2 47.8
12CHP060
71K21
(1 phase)
230 18.4 62,700 54.4 50
.
.
240 20.0 68,200 56.6 52.1
208 18.8 64,100 49.6 45.1
ECH29−25
1 step
220 21.0 71,700 52.2 47.8
71K22
(1 phase)
230 23.0 78,300 54.4 50
.
.
240 25.0 85,300 56.6 52.1
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).