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5396713-BIM-C-0319
WIRING
Furnace wiring is complete except for the power supply and the thermo-
stat wires. See wiring diagrams (Figures 13–18) for wire and fuse size.
See Table 2 for ground wire sizes. Thermostat wires connect through
side of furnace and should also be no smaller than 22 gauge. Power
wires can enter through the side of the unit or through the auxiliary
entrance, located in the bottom of the unit. (See Figure 1). When bring-
ing wiring through the bottom of the furnace, cable connectors must be
installed to hold wiring in place and to relieve any strain on the wiring.
These connectors also serve as a seal between the furnace and the
floor. Thus, additional sealing is not required.
NOTICE
The furnaces are equipped with either one or two 60 amp circuit
breakers. These circuit breakers protect the wiring inside of the fur-
nace in the event of a short circuit. Additionally, these breakers pro-
vide a means of disconnecting the power to the unit. The circuit
breakers in the furnace are not meant to protect the branch circuit
wiring between the furnace and the home's breaker panel. General
wire and breaker sizes are shown in Table 2. If sheathed cable is
used, refer to National Electrical Code, Canadian Electrical Code
and local codes for additional requirements concerning supply cir-
cuit wiring. Electrical Data can be found in Table 4.
TABLE 2: Wiring Requirements
MODELS
Single Branch Circuit Service
Nominal Circuit Load - Amps
Minimum Wire Size (90ºC)
Minimum Wire Size (75ºC)
Minimum Wire Size (60ºC)
Ground Wire Size +
Max. Fuse (or C.B.) - Amps
Dual Branch Circuit Service
Branch Circuit Load - Amps
Branch Circuit Min. - Amps
Minimum Wire Size (90ºC)
Minimum Wire Size (75ºC)
Minimum Wire Size (60ºC)
4
Ground Wire Size
Max. Fuse (or C.B.) - Amps
NOTES:
1. Does Not require a Jumper.
2. Jumper provided for Single Branch Circuit Only.
3. Requires Jumper Bars (P/N 3500-378P).
4. Refer to National Electrical Code (NEC). Table 250-122 for Non-Sheathed Conductor Ground Wire.
TABLE 3: EBE/EUE Series Blower Performance
Static Pressure
(inches of w.c.)
CFM (STD. Air)
for all EBE/EUE Models
6
1
2
3
EBE10A
EBE12A
EBE15A
EUE10A
EUE12A
EUE15A
43.8
50.5
#8
#6
#6
#6
#6
#4
#10
#8
60
70
CKT #1
43.8
54.8
#8
NOT
APPROVED
#6
#6
#10
60
Speed
0.1
0.2
Hi
1607
1563
MH
1390
1346
M
1241
1192
ML
1099
1051
Lo
1006
950
Refer to the National Electrical Code, Canadian Electrical Code and
local codes for wiring material requirements.
IMPORTANT
All installation on field wiring must be rated at 60ºC or higher.
Models for EBE/EUE15*, EBE/EUE17*, EBE/EUE20*, and EBE/
EUE23* may be connected to a single or dual branch circuit.
These units are shipped from the factory set up for dual power supply
connections. For single power supply connections, jumper bars (P/N
3500-378P*) are required and are available from the factory. See Fig-
ures 11 and 12.
3
EBE17A
EUE17A
2 Leads + 1 Ground CKT #1
63.8
70.4
#4
#4
#4
#3
#3
#2
#8
#8
80
90
CKT #2
CKT #1
CKT #2
20.0
47.1
23.3
25.0
58.9
29.1
#10
#6
#10
#10
#6
#10
#10
#4
#10
#10
#10
#10
30
60
30
0.3
0.4
1515
1477
1298
1286
1151
1115
1002
979
923
896
3
3
EBE20A
EUE20A
83.8
#3
#2
#1
#6
110
CKT #1
CKT #2
CKT #1
43.8
40.0
47.1
54.8
50.0
58.9
#8
#8
#6
#6
#8
#6
#6
#6
#4
#10
#10
#10
60
50
60
0.5
0.6
0.7
1434
1406
1377
1253
1224
1201
1097
1074
1032
949
912
872
860
826
800
Johnson Controls Ducted Systems
EBE23A
EUE23A
93.8
#2
#1
#0
#6
125
CKT #2
46.7
58.4
#6
#6
#4
#10
60
0.8
1345
1160
1000
855
728
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