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  3. B3BM

Unbranded B3BM, B3BV Product information

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TRANSFORMER
R
C
G
W
1
46
1
3
5
2
1
2
3
4
5
6
7
8
9
24V
LOW
VOLTAGE
POWER SUPPLY
GRAY
GREEN
ORANGE
RED
BLACK
WHITE
BLACK
3 SPD. MOTOR
GRAY
6
5
4
3
2
1
GRAY
RED
FUSE (If Supplied)
BROWN
PLUG FOR HEATER KIT
W
2
THESE WIRES SHOULD
NOT BE USED WHEN A FIELD
INSTALLED HEATER KIT IS ADDED
1 = COM
2 = CAP
3 = CAP
4 = HIGH
5 = MED
6 = LOW
BLOWER RELAY
BROWN
BLOWER
MOTOR PLUG
6
5
4
3
2
1
1 = COM
2 = CAP
3 = CAP
4 = HIGH
5 = MED
6 = LOW
Air Handler
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 wiring is replaced, use only 105°C
copper wire of the same gauge.
(Replaces
710164B)
01/15
710164C
WIRING DIAGRAM
FIELD WIRING
LEGEND:
LOW VOLTAGE
HIGH VOLTAGE
BLACK
RED
RED
/