Lennox EL23XCV Series Manual page 32

Outdoor Control Terminal Designations and Input /Outputs (see figure 15 for terminal locations)
Designator Description
O Unused on EL23XCV, for heat pump applications only
REV Unused on EL23XCV, for heat pump applications only
LPS
Low pressure switch (not used on EL23XCV)
Low pressure switch sensing connection (not used on
LPS
EL23XCV)
HPS High pressure switch
HPS
High pressure switch sensing connection
TP Top cap thermostat switch (in series with the HPS)
TP
Top cap thermostat switch sensing connection
Control (inverter power) contactor switched output (in
Cntctr
series with the HPS and TC)
Cntctr Contactor common
FPWM
PWM fan output
C PWM fan common connection
P10 (PSC
1/4ʺ QC terminals - Switched output for PSC outdoor fan
Fan 1/4ʺ
control
QC)
W Unused on ELXCV, for heat pump applications only
L 24VAC input to initiate load shed
Y2 second stage cooling input when a conventional
24VAC non-communicating thermostat is used. Must be
Y2
jumpered to Y1 if a single stage cooling thermostat is
used
Y1 first stage cooling input when a conventional 24VAC
Y1
non-communicating thermostat is used
O Unused on EL23XCV, for heat pump applications only
DS
Dehumidification input - not used
C 24VAC nominal power return
I- Low data line
I+ High data line
R 24VAC nominal power input
DF OEM test
TST OEM test pin
TABLE 6
RAST Connector Terminal Designations
Page 32
Input Output
Switched 24VAC
N/A
nominal
N/A N/A
N/A 5ma @ 18VAC
5ma @ 18VAC N/A
N/A 24VAC nominal
24VAC nominal N/A
N/A 24VAC nominal
24VAC nominal N/A
Switched 24VAC
N/A
nominal
N/A
10-97% duty cycle,
N/A
19-23 VDC peak
N/A N/A
Switched 230VAC
N/A
Nominal
N/A 24VAC nominal
24VAC nominal
from load shed
N.O. contacts N/A
(close to initiate
load shed)
24VAC nominal
N/A
from thermostat
24VAC nominal
N/A
from thermostat
24VAC nominal
N/A
from thermostat
N/A N/A
N/A N/A
Data Data
Data Data
24VAC nominal
board main N/A
power input
N/A N/A
24VAC nominal N/A
Common
N/A
24VAC common
N/A
N/A
N/A
N/A
N/A
N/A
N/A
24VAC common
Fan PWM
common
N/A
N/A
N/A
N/A
N/A
N/A
N/A
24VAC common
N/A
N/A
N/A
N/A
N/A