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4.Remove a ndsavetwoscrews holding J-Box.(See
Figure 2 3)
5.Pull f urnace p ower wires outof1/2-in. ( 12mm) d iamet-
erhole inJ-Box. D onotloosen w ires from strain-relief
wire-tie onoutside o fJ-Box.
6.Route f urnace p ower wires t hrough h oles incasing a nd
electrical boxandintoelectrical box.
7.Pull f ield power wires intoelectrical box.
8.Remove cover from furnace J -Box.
9.Route fieldground w ire through h oles inelectrical box
andcasing, and intofurnace J -Box.
10.Reattach furnace J -Box tofurnace c asing w ithscrews
removed inStep 4.
11.Secure f ield ground w ire toJ-Box green g round s crew.
Table 7--Electrical
Data
FURNACE
SIZE
0451408A
0451412A
0701408A
0701412A
0701716A
0901714B
0902116A
0902120A
1101712A
1102116A
1102122A
1352116A
1352422A
1552420A
VOLTS-
HERTZ-
PHASE
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
OPERATING
VOLTAGE
RANGE
Maximum*
Minimum*
127
104
127
104
127
104
127
104
127
104
127
104
127
104
127
104
127
104
127
104
127
104
127
104
127
104
127
104
MAXIMUM
UNIT
AMPS
5.2
7.2
5.1
7.2
9.5
8.2
10.0
14.1
8.6
10.2
15.1
10.5
14.5
15.4
UNIT
AMPAClTY
#
7.26
9.79
7.14
9.72
12.60
10.83
13.09
18.20
11.27
13.34
19.42
13.63
18.72
19.83
MAXIMUM
WIRE
LENGTH
FT. (M)$
49 (15)
37 (12)
51 (16)
38 (12)
29 (9)
34 (10)
28 (9)
31 (9)
32 (10)
27 (9)
29 (8)
27 (8)
30 (9)
29 (9)
MAXIMUM
FUSE OR
CKT BKR
AMPSt
15
15
15
15
15
15
15
20
15
15
2O
15
2O
2O
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'
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.
MINIMUM
WIRE
GAUGE
14
14
14
14
14
14
14
12
14
14
12
14
12
12
(EAC, humidifier,
etc.) full
12. Complete electrical box wiring and installation. Connect
line voltage
leads as shown in Figure 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) dia-
meter 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 Figure 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 Figure 26.
6. Reinstall cover to J-Box.
Do not pinch wires between
cover and bracket.
441 01 1402 02
21
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