How to Guide

27
WIRING DIAGRAM
7110770
Air Handler with Variable Speed High Efficiency Motor
Legend
Field Wiring
Factory Wiring:
Low Voltage High Vo ltage
¢711077.¤
0510
1 2
240
24 V
208 COM
TRANSFORMER
RC
HEATER PLUG
L
Y1
W2 W1
O
Y/Y2
G
R
C
L2
L1
EAL
HUM
L1 L2 C R
EXPANSION
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 PLUG
9-PIN HOUSING
MOTOR
TEST
EXPANSION
MOTOR
W Y/Y2 Y1
H
L2 OUT L2 IN
DEHUM
Y1
SENSOR
GND
C DX- DX+ R
BLACK
WHITE
6-PIN PLUG
6-PIN PLUG
BLACK
WHITE
BLACK
WHITE
GRAY
RED
BLACK
HARNESS
HARNESS
GREEN
BROWN
RED
ORANGE
YELLOW
GREEN
BLUE
BROWN
RED
ORANGE
YELLOW
GREEN
BLUE
RED
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 havea 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.
BLACK
WHITE
Figure 19. B6VM Wiring Diagram