Lennox SLP98DFV Installation Instructions Manual page 45

BLOWER DATA
SLP98DF090XV48C BLOWER PERFORMANCE (less filter)
HEATING BLOWER PERFORMANCE - 0 through 0.8 in. w.g. External Static Pressure Range
Heating Adjust CFM Selections
Increase (+15%) Heat CFM
Increase (+7.5%) Heat CFM
Default Heat CFM
Decrease (-7.5% ) Heat CFM
Decrease (-15% ) Heat CFM
COOLING BLOWER PERFORMANCE - 0 through 1.0 in. w.g. External Static Pressure Range
Cooling Adjust CFM
Selections
Increase (+10%) Cool CFM
Default Cool CFM
Decrease (-10%) Cool CFM
The effect of static pressure is included in air volumes shown.
The following control configurations are available. See Installation Instructions for details and DIP switch settings.
Heat Modes Available (Heating Blower Performance Table):
Single-stage thermostat:
- 35%, 70%, 100% input (three-stage) with time delays in-between
Two-stage thermostat:
- Variable Rate Capacity Mode - furnace automatically adjusts firing rate based on first- and second-stage cycle times.
- W1 demand at 70% input, W2 demand at 100% input. No delay between stages.
Cool Mode Available (Cooling Blower Performance Table):
First stage COOL (two-stage air conditioning units only) is approximately 70% of the same second stage COOL speed position.
Continuous Fan speeds are approximately 28%, 38%, 70% and 100% (DIP switch selectable) of the same second-stage COOL speed position minimum 250 cfm.
Lennox iHarmony Zoning System Applications - Minimum blower speed is 380 cfm.
®
35% 40%
723 790
690 752
656 714
601 654
545 593
First Stage Cool Speed - cfm
Low Medium- Medium
Low High
775 940 1100
690 875 975
635 755 915
Page 45
Heating Input Range and Blower Volume - CFM
50% 60%
925 1060
878 1004
831 948
761 867
690 787
Blower Speed Selections
Second Stage Cool Speed - cfm
High Low
(Default)
1255 1120
1135 1000
1025 920
70% 80% 90%
1195 1329 1464
1129 1255 1381
1064 1181 1297
974 1081 1188
884 981 1078
Medium- Medium
Low High
1340 1535
1220 1425
1100 1270
100%
1599
1507
1414
1295
1175
High
(Default)
1745
1625
1470