Lennox EL23XCV Series User Manual

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

Lennox EL23XCV Series Specifications

General

Brand	Lennox
Model	EL23XCV Series
Category	Air Handlers
Language	English