Integrated Control Diagram - Lennox G71MPP SERIES Unit Information

COMBUSTION
AIR INDUCER
CONNECTOR
DIAGNOSTIC
PUSH BUTTON
DIP SWITCHES
OUTDOOR AIR
SENSOR
TERMINALS
(Future Use)
DISCHARGE AIR
SENSOR
TERMINALS
(Future Use)
FACTORY TEST
HEADER PINS.
FACTORY USE ONLY.
1/4" QUICK CONNECT TERMINALS
NEUTRALS= 120 VAC NEUTRAL
TABLE 12
®
SureLight Board 6 Pin Terminal Designation
PIN #
1
2
3 Furnace Size Resistor Input
4
5
6 Furnace Size Resistor Input
INTEGRATED CONTROL
FLAME
SENSE
7−SEGMENT
DIAGNOSTIC LED
FIGURE 4
Function
Data Input From Motor
Common
Data Output To Motor
5 Volt Bias Supply
HUM
EAC
W915
W951
W914
THERMOSTAT CONNECTIONS (TB1)
H= 24V HUMIDIFIER OUTPUT
L= LENNOX SYSTEM OPERATION MONITOR
SureLight Board 12Pin Terminal Designation
PIN #
1
2
3
4
5
6
7
8
9
10
11
12
Page 18
NEUTRAL
TERMINALS
IGNITOR
CONNECTOR
LINE VOLTAGE
TERMINALS
INDOOR
BLOWER
CONNECTOR
ON−BOARD
LINKS
TABLE 13
Function
Not used
High Fire Pressure Switch
Rollout In
Ground
24V Hot
Primary Limit In
Gas Valve
Gas Valve Common
24V Neutral
Ground
Primary Limit Switch Out
Low Fire Pressure Switch