Nortek B6BM Series - Page 24

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Figure 15. Fixed Speed Motor Control Board
GREEN
RED
STATUS
NOT USED
TEST PORT
BLOWER MOTOR
RCY1
TWIN
DEHUM
W1
EXPANSION
PORT
COOL
HEAT
FAN SPEED
1 2 3
4
5 6 7
8
OFF ON
GND
SENSOR
DEHUM
Y1
H
L2-OUT
L2-IN
L1-IN
L1-OUT
Y1
Y/Y2
W
C
EXPANSION PORT
R
RED
GREEN
TEST PORT
BLOWER MOTOR
RED
INPUTS
COOL
HEAT
FAN SPEED
OUTPUTS
STATUS LIGHTS
2 3
4
5 6 7
8
OFF ON
A/B
Figure 16. Variable Speed Motor Control Board