1
2
3
4
5
6
1
2
3
4
5
6
5
6
2
4
RED
ORANGE
YELLOW
BLUE
TRANSFORMER
BLOWER RELAY
FUSE
CONTACTOR
CONTACTOR
ELEMENTS
ELEMENTS
LIMITS
LIMITS
“B” (TOP)
“A” (BOTTOM)
CIRCUIT BREAKERS
COM
240V
24V
H
MH
ML
L
C
BLACK
¢710387<¤
710387C
(Replaces 710387B)
0210
WIRING DIAGRAM
E3EB-020H, 023H, 023H-5 Ton; E2EB-015HBR
NOTES:
1. Supply wire size must be in accordance to the applicable revision of the NEC and all other
applicable codes.
2. Thermostat anticipator setting: 0.40 Amps
3. To change blower speed on units without a relay box installed refer to installation instructions
4. Refer to furnace and/or relay box installation instructions 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. Refer to installation instructions for complete wiring diagram.
8. Heating and cooling may be wired on the same speed using either a relay box or the provided jumper
wire.
LEGEND:
LOW VOLTAGE
HIGH VOLTAGE
Optional 4-Speed
Blower
!
WARNING
Switch circuit breakers to the “off”
position before servicing the furnace.
Legend:
IFM = Fan Motor
CB = Circuit Breaker
E = Heater Element
Cont = Contactor
IFR = Fan Relay
LS = Limit Switch
= Fan Plug
GREY
BLACK
WHITE
RED
YELLOW
BLUE
VIOLET
GREEN
GREY
ORANGE
WHITE
RED
RED
GREY WHITE
RED
RED
BLACK
BLACK
RED
RED
BLACK
BLACK
BLACK
RED
BLACK
BLACK
RED
GREY
BLACK
