6
TRANSFORMER
R
C
G
W
1
4
6
1
3
5
2
24V
LOW
VOLTAGE
RED
GRAY
GREEN
3 SPD. MOTOR
BLACK
6
5
4
3
2
1
GRAY
RED
FUSE
*
BROWN
BROWN
ORANGE
GRAY
RED
BLACK
WHITE
*Note:
Fuse may not be
present on some models.
W
2
1 = COM
2 = CAP
3 = CAP
4 = HIGH
5 = MED
6 = LOW
BLACK
BLOWER RELAY
BLOWER
MOTOR
PLUG
6
5
4
3
2
1
GROUND
YELLOW
WHITE
ORANGE
BLUE
BLACK
BROWN
RED
BLACK
BLACK
GRAY
RED
RED
GRAY
1
2
3
4
5
6
7
8
9
CONTACTOR
CONTACTOR
LIMIT
ELEMENTS
ELEMENTS
CIRCUIT
BREAKERS
HEATER KIT PLUG
SUPPLY VOLTAGE
RED
BLACK
BLACK
BLACK
BLACK
BLACK
LIMIT
GRAY
1 = COM
2 = CAP
3 = CAP
4 = HIGH
5 = MED
6 = LOW
N.C
N.O
Com
Figure 3. Typical System Wiring Diagram (20 kw, 2 Stage Shown)
A
ir Handler with Factory Installed Heat (20 kw)
NO
TES:
1.
The blower motor speed tap connection may not be
as shown. See the Installation Instructions.
2.
Disconnect all power before servicing.
3
.
T
ransf
ormer ma
y have a dual v
oltag
e
primary tap.
Match the tap position with the supply voltage used.
4.
If the internal wiring is replaced, use only 105°C
copper wire of the same gauge.
5.
Aluminum or copper supply conductors are suitable.
FIELD WIRING
F
A
CT
OR
Y
WIRING
LO
W
V
OL
T
A
G
E
HIGH V
O
L
T
A
G
E
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