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NOTES:
1) See unit data label for recommended supply wire sizes.
2) Thermostat anticipator setting: 0.20 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.
BLACK
BLOWER
SPEED
1
5 2
BLOWER
SELECTOR
RELAY
3 6 4
LEADS
(See Note 7)
TRANSFORMER
240V
24V
BLACK
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 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
VIOLET
RED
FUSE
ORANGE
WHITE
GREY
TOP ELEMENT, 10.0 KW
M2 M1
4
2
M4 M3
1
3
ELEMENTS
LIMIT
SEQUENCER
BLACK
RED
RED
1
2
3
4
5
6
4
1
2
3
4
5
6
Red Pig-Tail
GRD
RED
RED
BLACK
BLACK
CIRCUIT
BREAKER
Switch circuit breakers to
the OFF position beore
servicing the furnace.
Red Jumper Wire
CB-A
(See note 8)
Grey
5
Black
4
Blue
IFR
3
Yellow
2
Red
IFR
1
Seq 1
E
Seq 1
Top - 10.0
240V
Transformer
24V
Fuse
2
White Pig-Tail
Green Pig-Tail
Grey Pig-Tail
Ground
Supply
Legend:
Line
IFM – Fan Motor
Circuit A
Voltage
CB – Circuit Breaker
E – Heater Element
Seq – Sequencer
!
WARNING:
IFR – Fan Relay
LS – Limit Switch
CB-A
IFM
H
MH
C
6
Org.
ML
L
LS
Seq
1
IFR
5
3
– Fan Plug
– Control Plug
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