Bryant Series E/F 310AAV User Manual
Page 22
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Table 7—Electrical Data
FURNACE SIZE
VOLTS---
HERTZ---
PHASE
OPERATING VOLTAGE
RANGE
MAXIMUM
UNIT AMPS
UNIT
AMPACITY#
MAXIMUM
WIRE
LENGTH FT.
(M)‡
MAXIMUM
FUSE OR
CKT BKR
AMPS†
MINIMUM
WIRE
GAUGE
Maximum*
Minimum*
045---08/024045
115---60---1
127
104
5.2
7.26
49 (14.9)
15
14
045---12/036045
115---60---1
127
104
7.2
9.79
37 (11.2)
15
14
070---08/024070
115---60---1
127
104
5.1
7.14
51 (15.5)
15
14
070---12/036070
115---60---1
127
104
7.2
9.72
38 (11.5)
15
14
070---16/048070
115---60---1
127
104
9.5
12.60
29 (8.8)
15
14
090---14/042090
115---60---1
127
104
8.6
11.39
32 (9.7)
15
14
090---16/048090
115---60---1
127
104
10.0
13.09
28 (8.5)
15
14
090---20/060090
115---60---1
127
104
14.1
18.2
31 (9.4)
20
12
110---12/036110
115---60---1
127
104
8.6
11.27
32 (9.7)
15
14
110---16/048110
115---60---1
127
104
10.2
13.34
27 (8.2)
15
14
110---22/066110
115---60---1
127
104
15.1
19.42
29 (8.8)
20
12
135---16/048135
115---60---1
127
104
10.5
13.63
27 (8.2)
15
14
135---22/066135
115---60---1
127
104
14.5
18.72
30 (9.1)
20
12
155---20/060155
115---60---1
127
104
15.4
19.83
29 (8.8)
20
12
* Permissible limits of the voltage range at which the unit operates satisfactorily.
# Unit ampacity = 125 percent of largest operating component’s full load amps plus 100 percent of all other potential operating components’ (EAC, humidifier,
etc.) full load amps.
{
Time---delay type is recommended.
}
Length shown is as measured 1 way along wire path between unit and service panel for maximum 2 percent voltage drop.
12. Complete electrical box wiring and installation. Connect
line voltage leads as shown in Fig. 26. Use best practices
(NEC) for wire bushings, strain relief, etc.
13. Reinstall cover to J--Box. Do not pinch wires between
cover and bracket.
POWER CORD INSTALLATION IN FURNACE J--BOX
NOTE: Power cords must be able to handle the electrical
requirements listed in Table 7. Refer to power cord
manufacturer’s listings.
1. Remove cover from J--Box.
2. Route listed power cord through 7/8--in. (22 mm) diameter
hole in J--Box.
3. Secure power cord to J--Box bracket with a strain relief
bushing or a connector approved for the type of cord used.
4. Secure field ground wire to green ground screw on J--Box
bracket.
5. Connect line voltage leads as shown in Fig. 26.
6. Reinstall cover to J--Box. Do not pinch wires between
cover and bracket.
BX CABLE INSTALLATION IN FURNACE J--BOX
1. Remove cover from J--Box.
2. Route BX cable into 7/8--inch (22 mm) diameter hole in
J--Box.
3. Secure BX cable to J--Box bracket with connectors ap-
proved for the type of cable used.
4. Secure field ground wire to green ground screw on J--Box
bracket.
5. Connect line voltage leads as shown in Fig. 26.
6. Reinstall cover to J--Box. Do not pinch wires between
cover and bracket.
310AA
V