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4. Remove and save two screws holding J−Box. (See
Figure 23)
5. Pull furnace power wires out of 1/2−in. (12 mm) diamet-
er hole in J−Box. Do not loosen wires from strain−relief
wire−tie on outside of J−Box.
6. Route furnace power wires through holes in casing and
electrical box and into electrical box.
VOLTS−
FURNACE
HERTZ−
SIZE
PHASE
0451408A
115−60−1
0451412A
115−60−1
0701408A
115−60−1
0701412A
115−60−1
0701716A
115−60−1
0901714B
115−60−1
0902116A
115−60−1
0902120A
115−60−1
1101712A
115−60−1
1102116A
115−60−1
1102122A
115−60−1
1352116A
115−60−1
1352422A
115−60−1
1552420A
115−60−1
* 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 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.
441 01 1402 02
Table 7—Electrical Data
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
7. Pull field power wires into electrical box.
8. Remove cover from furnace J−Box.
9. Route field ground wire through holes in electrical box
and casing, and into furnace J−Box.
10. Reattach furnace J−Box to furnace casing with screws
removed in Step 4.
11. Secure field ground wire to J−Box green ground screw.
MAXIMUM
UNIT
UNIT
AMPACITY
AMPS
#
5.2
7.26
7.2
9.79
5.1
7.14
7.2
9.72
9.5
12.60
8.2
10.83
10.0
13.09
14.1
18.20
8.6
11.27
10.2
13.34
15.1
19.42
10.5
13.63
14.5
18.72
15.4
19.83
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.
MAXIMUM
MAXIMUM
WIRE
FUSE OR
LENGTH
CKT BKR
FT. (M)‡
AMPS†
49 (15)
15
37 (12)
15
51 (16)
15
38 (12)
15
29 (9)
15
34 (10)
15
28 (9)
15
31 (9)
20
32 (10)
15
27 (9)
15
29 (8)
20
27 (8)
15
30 (9)
20
29 (9)
20
MINIMUM
WIRE
GAUGE
14
14
14
14
14
14
14
12
14
14
12
14
12
12
21
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