Nortek B5BM Series - Air Handler with X-13 Motor Wiring

21
Y1
L2 L2 L2COM L1 L1 XFMR X13COOL X13HEAT X13COM
FUSE
24 V
24 V
COM
HEATER
W2
W1
O
Y/Y2
G
R
C
TRANSFORMER
5
N4
G3
L2
C1
C=COM
L=LINE
G=GROUND
N=NEUTRAL
1=LOW
2=MED LO
3=MED
4=MED HI
5=HI
GREY
RED
WHITE
RED/BLACK
GREY
RED
BLACK
WHITE
BLACK
GREEN/YELLOW
POWER SUPPLY
CUT WIRES TO REMOVE
PLUG HOUSING WHEN
HEATER KIT IS NOT
INSTALLED
WIRING DIAGRAM
710545B
(Replaces 710545A)
0310
FIELD WIRING
LEGEND:
LOW VOLTAGE
HIGH VOLTAGE
The blower motor
speed tap connection
may not be as shown.
See the Installation
Instructions.
Disconnect all power
before servicing.
Transformer may have
a dual voltage primary
tap. Match the tap
position with the
supply voltage used.
If the internal wiring is
replaced, use only
105°C copper wire of
the same gauge.
BLOWER
MOTOR PLUG
N = NEUTRAL
G = GROUND
L = LINE
C = COMMON
SPEED TAPS
5 = HI
4 = MED HI
3 = MED
2 = MED LOW
1 = LOW
5
N4
G3
L2
C1
NOTES:
1.
2.
3.
4.
Air Handler
X13 MOTOR
¢710545$¤
Figure 15. Wiring Diagram for B5BM Series Air Handler with X-13 Motor