Nortek B6EM Series - Page 26

26
WIRING DIAGRAM
7110760
Air Handler with Fixed Speed High Efficiency Motor
Legend
Field Wiring
Factory Wiring:
Low Voltage High Vo ltage
¢711076(¤
0510
1 2
240
24 V
208 COM
TRANSFORMER
R
C
HEATER PLUG
L
Y1
W2
W1
O
Y/Y2
G
R C
L2
L1
EAL
HUM
L1 L2 C R
EXPANSION
EXPA NSION
MOTOR
TEST
R C Y DEHUM
TWIN
1 2 3 4 5 6
1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9
1 2 3 4 5 6
9-PIN HOUSING
9-PIN PLUG
6-PIN PLUG
HARNESS
BLACK
WHITE
GRAY
RED
BLACK
RED
WHITE
BLACK
MOTOR
6-PIN PLUG
HARNESS
WHITE
BLACK
BLUE
GREEN
YELLOW
ORANGE
RED
BROWN
BLUE
GREEN
ORANGE
RED
BROWN
YELLOW
CUT WIRES TO REMOVE PLUG HOUSING WHEN HEATER KIT NOT INSTALLED
NOTES: 1. The blower motor speed tap connection may not be as shown. See the Installation Instructions. 2. Disconnect all power before servicing. 3. Transformer may have a dual voltage 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.
GREEN
Figure 18. B6EM Wiring Diagram