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Switch 5 -- Cooling Blower-Off Delay --
The cooling
blower-off delay (time that the blower operates after the
cooling demand has been satisfied) can be adjusted by
moving switch 5 on the integrated control. The switch is fac
tory-set in the OFF position, which provides a cooling blow
er-off delay of 45 seconds. If the switch is toggled to the ON
position, it will provide a 2-second cooling blower-off delay
On-Board Link W951 Heat Pump (R to O)
On-board link W951 is a clippable connection between ter
minals R and O on the integrated control. W951 must be cut
when the furnace is installed in applications which include a
heat pump unit and a thermostat which features dual fuel
use. If the link is left intact, terminal “O” will remain ener
gized eliminating the HEAT MODE in the heat pump.
On-Board Link W915 2 Stage Compr (Y1 to Y2)
On-board link W915 is a clippable connection between ter
minals Y1 and Y2 on the integrated control. W915 must be
cut if two-stage cooling will be used. If the Y1 to Y2 link is
not cut the outdoor unit will operate in second-stage cool
ing only.
TWO-STAGE INTEGRATED
CONTROL
THERMOSTAT CONNECTIONS (TB1)
1/4” QUICK CONNECT TERMINALS
DIP SWITCH FUNCTIONS
DIP
SWITCHES
DIAGNOSTIC
LEDs
ON-BOARD
LINKS
1= ERROR CODE RECALL
H= 24V HUMIDIFIER OUTPUT
L= LENNOX SYSTEM OPERATION MONITOR
SENSE = 120 VAC OUTPUT TO FLAME SENSOR
NEUTRALS= 120 VAC NEUTRAL
PARK = DEAD TERMINAL FOR UNUSED BLOWER LEAD
HEAT LOW = 120 VAC OUTPUT TO CIRC BLWR -- LOW HT SPEED & CONT
FAN
HEAT HIGH/ COOL LOW = 120 VAC OUTPUT TO CIRC BLWR --
HIGH HEAT AND LOW COOL SPEED
COOL HIGH = 120 VAC OUTPUT TO CIRC BLWR -- HIGH COOL SPEED
DIP SWITCH(ES)
FUNCTION
1 -- 2 Stage T'stat
Selects t/stat type (single or two-stage)
2 -- 2nd Stage Delay
Second stage ON delay (single-stage t'stat)
3 & 4 -- Heat Off Delay
Heating fan OFF delay
5 -- Cool Off Delay
Cooling fan OFF delay
W915
W951
FIGURE 5
TABLE 2
SureLight control 5 Pin Terminal Designation
PIN #
Function
1
Ignitor
2
Combustion Air Inducer High Speed
3
Combustion Air Inducer Low Speed
4
Combustion Air Inducer Neutral
5
Ignitor Neutral
TABLE 3
SureLight control 12Pin Terminal Designation
PIN #
Function
1
Gas Valve High Fire
2
Second Stage pressure Switch
3
Rollout In
4
Ground
5
24V Hot
6
Primary Limit In
7
Gas Valve Low Stage
8
Gas Valve Common
9
24V Neutral
10
Ground
11
Rollout Switch Out
12
1st Stage pressure Switch
