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NOTES:
1) See unit data label for recommended supply wire sizes.
2) Thermostat anticipator setting: 0.40 Amps.
3) To change blower speeds on units without a relay box refer
to installation instructions.
4) Refer to furnace and/or relay box installation for thermo-
stat connections.
5) If any wire in this unit is to be replaced it must be replaced
BLACK
BLOWER
BLOWER
SPEED
1
5 2
RELAY
SELECTOR
3 6
4
LEADS
(See Note 7)
RED
TRANSFORMER
240V
24V
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 acces-
sory Installation Instructions for further details.
C
H
MH
ML
L
6
5
4
3
2
1
6
5
4
3
2
1
RED
BLACK
GREEN
GREY
RED
FUSE
VIOLET
ORANGE
WHITE
GREY
BLACK
TOP ELEMENT, 10.0/11.6 KW
M6 M5
2
4
M8 M7
1
3
ELEMENTS
RED
BOTTOM ELEMENT, 10.0 KW
M2 M1
2
4
M4 M3
1
3
ELEMENTS
LIMITS
SEQUENCER
RED
BLACK
GREY
WARNING:
!
1
2
3
4
5
6
Switch circuit breakers to
the OFF position beore
1
2
3
servicing the furnace.
4
5
6
RED
RED
BLACK
BLACK
RED
RED
GRD
CIRCUIT
GRD
BREAKERS
GRD
CB-B
Seq 2
E
Seq 2
Top -
10.0/11.6
CB-A
Red Jumper Wire
(See note 8)
IFR
IFR
E
Seq 1
Seq 1
Btm - 10.0
240V
24V
Fuse
4
White Pig-Tail
Green Pig-Tail
Grey Pig-Tail
Red Pig-Tail
Line
Circuit B
Voltage
Dual
Ground
Supply
Circuit A
Line
Voltage
Ground
OR
Single
Supply
(optional)
Ground
CB-B
LS
CB-A
Grey
5
IFM
Black
H
4
Blue
MH
3
C
6
Org.
Yellow
ML
2
Red
L
1
LS
Transformer
Seq
1
Seq
2
2
IFR
5
3
Legend:
IFM – Fan Motor
CB – Circuit Breaker
E – Heater Element
Seq – Sequencer
IFR – Fan Relay
LS – Limit Switch
– Fan Plug
– Control Plug
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