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TABLE 1
15CHAX−24, 15CHAX−30 Blower Performance
0 through 0.80 in. w.g. (0 through 200 Pa) External Static Pressure Range
Jumper Speed Positions
ADJUST"
COOL" Speed
HEAT" Speed
CONTINUOUS FAN" Speed
ADJUST
Jumper
A
B
C
D
A
B
C
D
A
B
C
D
Jumper
Setting cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s
+ 1150 545 920 435 690 325 1035 490 1150 545 1150 545 1150 545 1150 545 575 270 460 215 345 165 520 245
NORM 1000 470 800 380 600 285 900 425 1000 470 1000 470 1000 470 1000 470 500 235 400 190 300 140 450 210
− 850 400 680 320 510 240 765 360 1000 470 1000 470 1000 470 1000 470 425 200 340 160 300 140 385 180
TABLE 2
15CHAX−36 Blower Performance
0 through 0.80 in. w.g. (0 through 200 Pa) External Static Pressure Range
Jumper Speed Positions
ADJUST"
COOL" Speed
HEAT" Speed
CONTINUOUS FAN" Speed
ADJUST
Jumper
A
B
C
D
A
B
C
D
A
B
C
D
Jumper
Setting cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s
+ 1380 650 1150 545 920 435 1265 575 1380 650 1380 650 1150 545 1150 545 690 325 575 270 460 215 635 300
NORM 1200 565 1000 470 800 380 1100 520 1200 565 1200 565 1000 470 1000 470 600 285 500 235 400 190 550 260
− 1020 480 850 400 680 320 935 440 1200 565 1200 565 1000 470 1000 470 510 240 425 200 350 165 470 220
TABLE 3
15CHAX−42, 15CHAX−48, 15CHAX−60, Blower Performance
0 through 0.80 in. w.g. (0 through 200 Pa) External Static Pressure Range
Jumper Speed Positions
ADJUST"
COOL" Speed
HEAT" Speed
CONTINUOUS FAN" Speed
ADJUST
Jumper
A
B
C
D
A
B
C
D
A
B
C
D
Jumper
Setting cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s
+ 2070 975 1840 870 1610 760 1380 650 1610 760 1610 760 1610 760 1610 760 1035 490 920 435 805 380 690 325
NORM 1800 850 1600 755 1400 660 1200 565 1400 660 1400 660 1400 660 1400 660 900 425 800 380 700 330 600 285
− 1530 720 1360 640 1190 560 1020 480 1400 660 1400 660 1400 660 1400 660 765 360 680 320 595 280 510 240
5−Lennox System Operation Monitor (A132)
IMPORTANT
This monitor does not provide safety protection. The
monitor is a monitoring device only and cannot con-
trol or shut down other devices
.
The Lennox system operation monitor (LSOM) detects
the most common fault conditions in the air conditioning
system. When an abnormal condition is detected, the
module communicates the specific condition through its
ALERT and TRIP lights. The module is capable of detect-
ing both mechanical and electrical system problems. See
figure 5 for the system operation monitor.
Lennox System Operation Monitor (A132)
DATA OUTPUT
CONNECTOR
.25" SPADE
CONNECTOR (5)
POWER LED
DATA OUTPUT
Y
C
R
ALERT LED
TRIP LED
FIGURE 5
LSOM LED Functions
Power LED (green) −−
Voltage within the range of
19−28VAC is present at the system monitor power connec-
tion.
Alert LED (yellow) −−
Communicates an abnormal sys-
tem condition through a unique flash code. The alert LED
flashes a number of times consecutively; then pauses;
then repeats the process. This consecutive flashing cor-
responds with a particular abnormal condition.
Trip LED (red) −− I
ndicates a demand signal from the ther-
mostat; but detects no current to the compressor.
Flash code number −− Corresponds to a number of LED
flashes, followed by a pause, and then repeated.
Trip & Alert LEDs flashing simultaneously −− Indicates
that the control circuit voltage is too low for operation.
Reset ALERT flash code by removing 24VAC power from
monitor. Last ALERT flash code will display for 1 minute
after monitor is powered on.
LSOM codes are given in table 4.
