Lennox EL23XCV Series Manual page 66

CHECKOUT:
VAC Voltage Check
Check for 208/240 VAC power at inverter contactor (red wires) (see figure 44).
All EL23XCV Units
1. With the unit running, check for 230VAC at the red outdoor fan motor wires at the contactor. If no voltage is present
check main power at the contactor.
2. Perform a DC voltage check between the FPWM and Fan C terminal.
3. Using the push button on the control, enter the "fan test mode" in the "field test mode" by pushing and holding the button
until solid "-" appears, release the button. Display will start flashing, within 10 seconds, push and hold the button until
the "F" symbol displays then release the button. Display will begin to flash "F", within 10 seconds, push and hold the
button until it stops flashing, release the button. Outdoor fan motor will cycle on for 10 minutes. To exit, push and hold
the button until three horizontal bars display. Release the button and the outdoor fan will cycle off.
INVERTER
REACTOR
L1
1
K1-1
S40
REACTOR
HR1
3
EQUIPMENT
GROUND
K1-2
L2
COMPRESSOR
CONTACTOR
NOTE-
IF ANY WIRE IN THIS APPLIANCE IS REPLACED,IT
MUST BE REPLACED WITH WIRE OF LIKE SIZE,
RATING, INSULATION THICKNESS, AND TERMINATION.
S4 HIGH
PRESSURE
SWITCH
GROUND
1
LUG
2
K1
3
COMPRESSOR
CONTACTOR
COMPRESSOR
CONTACTOR
RED RED
B4
FAN
BROWN
BLACK
BLUE BROWN
FERRITE
FERRITE
INVERTER
COMM
BROWN
BLUE
U
V
BROWN
BLUE
W
RED
U
BLUE
V
YELLOW
W
FERRITE
2
BROWN
HIGH PRESSURE
TRANSDUCER
FIGURE 42. VAC Voltage Check
7-3/8" wide x 8-1/2" tall
RT13
RT36
2
B1
AMBIENT
LIQUID
COMPRESSOR
SENSOR SENSOR
V W
U
S87 LOW S173
COMPRESSOR
PRESSURE
SWITCH TOP CAP SWITCH
NOTE-
FOR USE WITH COPPER CONDUCTORS
ONLY. REFER TO UNIT RATING PLATE
FOR MINIMUM CIRCUIT AMPACITY AND
MAXIMUM OVERCURRENT PROTECTION SIZE
REFER TO COMPRESSOR IN UNIT FOR
ACTUAL TERMINAL ARRANGEMENT
WARNING-ELECTRIC SHOCK HAZARD
CAN CAUSE INJURY OR DEATH. UNIT
MUST BE GROUNDED IN ACCORDANCE
WITH NATIONAL AND LOCAL CODES
WHITE
YELLOW
4
2
BLACK
1
3
RED
FAN PWM
COM
REV
B
CNTCTR
K1
A
HPS
S4
TP
S173
LPS
A188
RT13
LOW PRESSURE
TRANSDUCER
A168
LINE VOLTAGE FIELD INSTALLED
CLASS II VOLTAGE FIELD WIRING
DENOTES OPTIONAL COMPONENTS
Page 66
R7
RESISTOR
(10K)
A175
OUTDOOR
CONTROL
W
L
Y2
Y1
O
DS
C
-
i
LIQ
R7
+
i
R
AMB
DF
TST
COIL
R7
RT_SUCTION
SENSOR
RT41
RT_LIQUID
RT36
SENSOR
SUCT/
LIQ T 1 2 3 4
COOLING
LENNOX
CONDENSING
EL23XCV BLDC
FAN MOTOR
2011
C
Supersedes
Litho U.S.A.