Electric heater internal protection, Electric heaters – Bryant FAN UNIT FH4B User Manual
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FAN COIL ELECTRICAL DATA
(UNITS WITHOUT ELECTRICAL HEAT)
* Use copper wire only. 75°C must be used in this application. When using non-metallic (NM) sheathed cable, wire size required should be based on
that of 60°C conductors, instead of wire sizes shown in table above per NEC 1999 Article 336-26.
FLA
— Full Load Amps
NOTE:
If branch circuit wire length exceeds 100 ft., consult NEC 215-2 to determine maximum wire length. Use 2% voltage drop.
ELECTRIC HEATER INTERNAL PROTECTION*
* 5-, 8-, 10-kw factory-installed heat has no internal protection. 15-kw factory-installed heat is internally protected with fuses.
** KFCEH1401N09 is single phase only.
† Circuit breakers are 2 pole.
ELECTRIC HEATERS
UNIT
SIZE
VOLTS
(1 PHASE)
FLA
MIN
CKT
AMPS
BRANCH CIRCUIT
Min Wire
Size AWG*
Fuse Amps
001
208/230
1.8
2.3
14
15
002
208/230
2.7
3.4
14
15
003
208/230
4.3
5.4
14
15
004
208/230
5.4
6.8
14
15
HEATER KW
PHASE
FUSES
QTY/SIZE
CKT BKR
QTY/SIZE†
3
1
—
—
5
1
—
1/60
8
1
—
1/60
10
1
—
1/60
15
1
2/30 – 2/60
2/60
20
1
4/60
2/60
24
3/1
6/60
—
30
3/1
6/60
—
9
1/3**
—
—
15
3
—
—
18
3
—
—
HEATER
PART NO.
KW
@ 240V
VOLTS/PHASE
STAGES (KW
OPERATING)
INTERNAL
CIRCUIT
PROTECTION
FAN COIL SIZE
USED WITH
HEATING CAP. **
@ 230V
KFCEH0401N03
3
230/1
3
None
001
9,400
KFCEH0501N05
5
230/1
5
None
001, 002
15,700
KFCEH0801N08
8
230/1
8
None
001–004
25,100
KFCEH0901N10
10
230/1
10
None
001–004
31,400
KFCEH3201F20
20
230/1
5, 20
Fuse‡
002–004
62,800
KFCEH1601315
15
230/3
5, 15
None
002–004
47,100
KFCEH2001318
18
230/3
6, 12, 18
None
003, 004
56,500
KFCEH3401F24
24
230/3*
8, 16, 24
Fuse
003, 004
75,300
KFCEH3501F30
30
230/3*
10, 20, 30
Fuse
003, 004
94,100
KFCEH2401C05
5
230/1
5
Circuit Breaker
001, 002
15,700
KFCEH2501C08
8
230/1
8
Circuit Breaker
001, 002
25,100
KFCEH2601C10
10
230/1
10
Circuit Breaker
001–004
31,400
KFCEH3301C20
20
230/1
5, 20
Circuit Breaker
002–004
62,800
KFCEH2901N09
9
230/1†
3, 9
None
002–004
28,200
KFCEH3001F15
15
230/1
5, 15
Fuse‡
001–004
47,100
KFCEH3101C15
15
230/1
5, 15
Circuit Breaker
001–004
47,100