Lennox XP17-024-230-01 Installation And Service Procedure page 21

HEAT PUMP
CONTROL (A175)
VERIFY DC VOLTAGE OUTPUT USING FAN PWM OUT AND
COM TERMINALS. SEE TABLE 8 FOR OPTIMAL DC
VOLTAGE BASED ON CFM PROFILE USED.
GREEN
RED
RED
YELLOW
YELLOW
Figure 9. Fan Motor Control, Wiring, Jumper Settings, Testing and LED Location
XP17
FAN MOTOR CONTROL (A177) —
PULSE-WIDTH MODULATION (PWM)
CONTROL BOX
COM
FAN PWM OUT
YELLOW
HIGH PRESSURE SWITCH (S4)
HEAT PUMP CONTROL (A175)
J2
J2
Page 21
CFM Profile Pin Select
JUMPER
JUMPER
OFF
ON
BLACK
BROWN
YELLOW
BLUE
BLACK
YELLOW
YELLOW
FAN MOTOR
CONTROL
SEE TABLE 8 FOR CFM PROFILE
SELECTION OPTIONS.
LED
GREEN
RED
RED
B4 FAN
MOTOR