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BLOWER DATA
SLP99UH090XV48C BLOWER PERFORMANCE (less filter)
SINGLE SIDE RETURN AIR
HEATING BLOWER PERFORMANCE - 0 through 0.8 in. w.g. External Static Pressure Range
Heating Adjust CFM Selections
Heating Input Range and Blower Volume - CFM
35%
40%
50%
60%
70%
80%
90%
100%
Increase (+15%) Heat CFM
747
812
943
1073
1204
1334
1465
1595
Increase (+7.5%) Heat CFM
698
759
882
1005
1127
1250
1372
1495
Default Heat CFM
649
706
821
936
1051
1165
1280
1395
Decrease (-7.5% ) Heat CFM
589
644
755
867
978
1089
1200
1312
Decrease (-15% ) Heat CFM
528
582
690
797
905
1013
1120
1228
COOLING BLOWER PERFORMANCE - 0 through 1.0 in. w.g. External Static Pressure Range
Cooling Adjust CFM
Selections
Blower Speed Selections
First Stage Cool Speed - cfm
Second Stage Cool Speed - cfm
Low
Medium-
Low
Medium
High
High
(Default)
Low
Medium-
Low
Medium
High
High
(Default)
Increase (+10%) Cool CFM
820
1005
1135
1290
1140
1340
1525
1725
Default Cool CFM
755
880
1025
1150
1040
1235
1395
1565
Decrease (-10%) Cool CFM
680
815
925
1065
910
1120
1275
1400
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% and 38% (DIP switch selectable) of the same second-stage COOL speed position.
minimum 3808 cfm.
Lennox iHarmony
®
Zoning System Applications - Minimum blower speed is 380 cfm.
