Lennox G51MP?36C?090 User Manual

Page 11
FAN-OFF TIME ADJUSTMENT
To adjust fan−off timing, set dip switch to desired setting.
60sec. 90sec.
120sec.
180sec.
(Black square indicates switch position)
OFF
OFFOFF OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
2
2
2 2
1
1
1
1
FIGURE 5
INTEGRATED IGNITION CONTROL 97L48
FIGURE 6
J58
J156
LED’s
TABLE 3
IGNITION CONTROL 97L48 TERMINAL DESIGNATIONS
ACB COOL blower − cooling speed (line voltage)
ACB HEAT blower − heating speed (line voltage)
PARK alternate blower speeds
ACB LOW continuous low speed
ACC accessory terminal (line voltage)
TX 120vac hot to transformer
HOT 120vac hot input
HTG ACC heat only accessory (line voltage)
NEUTRALS 120vac neutral
24VAC HOT 24vac hot from transformer
24VAC RTN 24vac return from transformer
FLAME SENSE flame sense terminal
FIGURE 7
SureLight Control Ignition Sequence
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ
ÉÉÉÉÉÉÉÉÉÉÉÉÉ
ÉÉÉÉÉÉÉÉÉÉÉÉÉ
ÉÉ
DEMAND
CAI
GAS VALVE
ON
OFF
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ
ÉÉ
ÉÉÉÉÉÉÉÉÉÉ
IGNITOR
15 Sec.
Pre −Purge
20 sec.
Ignitor Warmup
4 Sec.Trial
for Ignition
Post
Purge
5 SEC
*Blower on time will be 45 seconds after gas valve is energized. Blower off time will depend on OFF TIME" Setting.
INDOOR BLOWER
ÉÉÉÉÉÉÉÉÉÉ
ÉÉÉÉÉÉÉÉÉÉ
Blower On"
Delay
End of
Heat Demand
Blower
Off
Time

Lennox G51MP?36C?090 Specifications

General

Brand	Lennox
Model	G51MP?36C?090
Category	Furnace
Language	English