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26
!
WARNING:
Switch circuit breakers to
the OFF position before
servicing the furnace.
Legend:
CB – Circuit Breaker
E – Heater Element
IFR – Fan Relay
Cont – Contactor
LS – Limit Switch
– Fan Plug
IFM – Fan Motor
60A
ON
OFF
GRD
Single
Supply
(optional)
OR
Circuit A
Circuit B
GRD
GRD
Ground
Dual
Supply
60A
60A
ON
ON
OFF
OFF
Ground
Line
Voltage
Ground
Line
Voltage
60A
ON
OFF
CIRCUIT
BREAKERS
TRANSFORMER
240V
24V
CONTACTOR
ELEMENTS
LIMITS
TOP ELEMENTS, 10.0/11.6/7.6 KW
BLACK
ELEMENTS
BOTTOM ELEMENT, 10.0/7.6 KW
H
MH
ML
L
C
ORANGE
BLACK
BLACK
BLACK
GREY
GREY
BLUE
WHITE
BLACK
BLACK
GREEN
1
5
2
BLOWER
RELAY
3
6
4
GREY
WHITE
4
2
3
1
4
2
3
1
1
2
3
4
56
123
4
56
BLACK
FUSE
VIOLET
RED
WHITE
COM
CONTACTOR
RED
RED
RED
RED
BLACK
GREY
BLUE
YELLOW
RED
RED
YELLOW
RED
GREY
RED
RED
BLACK
BLACK
RED
RED
ORANGE
BLACK
Figure 29. E3EB 020H, 023H, and 023H - 5 Ton, E2EB-015HBR Wiring Diagrams
NOTES:
1) See unit data label for recommended supply wire
sizes.
2) Thermostat anticipator setting: 0.40 Amps.
3) To change blower speed on units without a relay
box refer to installation instructions.
4) Refer to furnace and/or relay box installation for
thermostat connections.
5) If any wire in this unit is to be replaced it must be
replaced with 105°C thermoplastic copper wire of
the same gauge.
6) Not suitable for use on systems exceeding 120V to
ground.
7) This wire is used with some accessories. See
accessory Installation Instructions for further de-
240V
Cont 2
C
H
L
IFM
CB-A
CB-A
CB-B
CB-B
Transformer
LS
Top -
10.0/11.6/7.6
Btm - 10.0/7.6
ML
MH
1
2
3
4
5
IFR
Red
Yellow
Blue
E
E
Cont 2
IFR
Cont 2
Cont 2
LS
Cont
2
Cont
1
24V
Red Pig-Tail
White Pig-Tail
IFR
Green Pig-Tail
Grey Pig-Tail
6
Black
Grey
Org.
White Jumper Wire
(See note 7)
Fuse