28
!
WARNING:
Switch circuit breakers to
the OFF position before
servicing the furnace.
Figure 27. E3EB 012H Wiring Diagrams
NOTES:
1) See unit data label for recommended supply wire sizes.
2) Thermostat anticipator setting: 0.20 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 details.
Legend:
CB – Circuit Breaker
E – Heater Element
IFR – Fan Relay
Cont – Contactor
LS – Limit Switch
IFM – Fan Motor
– Fan Plug
TRANSFORMER
240V
24V
ELEMENTS
TOP ELEMENTS, 11.6 KW
H
MH
ML
L
C
ORANGE
BLACK
BLUE
YELLOW
RED
BLACK
BLACK
GREY
RED
ORANGE
GREY
BLACK
BLACK
YELLOW
RED
WHITE
BLACK
RED
RED
BLACK
CONTACTOR
LIMITS
1
5
2
BLOWER
RELAY
3
6
4
GREEN
GREY
WHITE
123
456
123
456
4
2
3
1
BLACK
FUSE
VIOLET
COM
BLACK
BLACK
RED
RED
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
GREY
RED
240V
Cont 1
C
H
L
IFM
CB-A
CB-A
CB-B
CB-B
Transformer
LS
Btm - 11.6
ML
MH
1
2
3
4
5
IFR
Red
Yellow
Blue
E
IFR
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)
E
Fuse
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