Two−Stage, Variable Speed Integrated Control Board - Lennox G60UHV Service Manual

TWO−STAGE, VARIABLE SPEED INTEGRATED CONTROL BOARD
DIAGNOSTIC
LEDs
ON
HEATING
DIP
1 4
SWITCHES
FUTURE
USE
TABLE 12
SureLight Board 5 Pin Terminal Designation
PIN #
1
2 Combustion Air Inducer High Speed
3 Combustion Air Inducer Low Speed
4 Combustion Air Inducer Neutral
5
TABLE 13
SureLight Board 12Pin Terminal Designation
PIN #
1
2 Second Stage Prove Switch
3
4
5
6
7
8
9
10
11
12
1
ON 9
12
16
5
8
INDOOR
BLOWER DIP
SWITCHES
ON−BOARD
LINKS
HTG DIP SWITCH(ES)
W915
W951
INDOOR BLOWER
W914
DIP SWITCH(ES)
9 and 10
11 and 12
FIGURE 5
Function
Ignitor
Ignitor Neutral
Function
Gas Valve High Fire
Rollout In
Ground
24V Hot
Primary Limit In
Gas Valve Low Stage
Gas Valve Common
24V Neutral
Ground
Rollout Switch Out
1st Stage Prove Switch
Page 17
1/4" QUICK CONNECT TERMINALS
NEUTRALS= 120 VAC NEUTRAL
THERMOSTAT CONNECTIONS (TB1)
H= 24V HUMIDIFIER OUTPUT
L= LENNOX SYSTEM OPERATION MONITOR
1= FUTURE USE
DIP SWITCH FUNCTIONS
1 T'stat Heat Stages (single or two−stage)
2 Second Stage ON Delay (single−stage t'stat)
3 and 4 Heating Fan OFF Delay
5 and 6 Cooling Mode Blower Speed
7 and 8 Blower Speed Adjustment
Cooling Mode Blower Ramping Profile
Heating Mode Blower Speed
SureLight Board 16 Pin Blower Control Terminals
PIN #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
FUNCTION
FUNCTION
TABLE 14
Function
Ground
Low Heat Speed
Ground
DELAY" Dip Switch Selection
COOL" Dip Switch Selection
Y1" Signal
ADJUST" Dip Switch Selection
Ground
0" From Thermostat
DS" Output Signal
HEAT" Dip Switch Selection
24 VAC
HIGH HEAT Speed
Y2" Signal
G"
CFM LED