Nordyne MB7BM Series User Manual

24
WIRING DIAGRAM
(Replaces 7110750)
Air Handler
Legend
Field Wiring
Factory Wiring:
Low Voltage High Voltage
¢711075"¤
1009
711075A
CAP.
1 3 5 2
1 2
4 6
HEATER PLUG
RELAY
RELAY
Y
L2 L1
EAC
COOL
HEAT
W
G
R
C
R C L2 L1
-
7 6 5 4 3 2 1
1=COM 2=CAP. 3=CAP. 4=HI 5=MED 6=LOW
240
24 V
208 COM
TRANSFORMER
R
C
LOCATION OF “T” CONNECTOR
MOTOR
3-SPEED
4-PIN PLUG (18)
CUT WIRES TO REMOVE PLUG HOUSING WHEN HEATER KIT NOT INSTALLED
BLACK
RED
WHITE
BROWN
BROWN
BLACK
WHITE
RED
GRAY
YELLOW
WHITE
GREEN
GRAY
RED
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.
RED
BLACK
BLW DTC
R
BLACK
IF BOARD EQUIPPED WITH BLWDTC TERMINAL
Figure 14. Wiring Diagram for MB7BM Series Air Handler

Nordyne MB7BM Series Specifications

General

Brand	Nordyne
Model	MB7BM Series
Category	Air Handlers
Language	English