Lennox SLP99UHV Series Unit Information page 13

BLO WER DATA
SLP99UH090XV60C BLOWER PERFORMANCE (less filter)
BOTTOM RETURN AIR
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% and 38% (DIP switch selectable) of the same second-stage COOL speed position.
minimum 380 cfm.
Lennox iHarmony Zoning System Applications - Minimum blower speed is 450 cfm.
®
35% 40%
583 665
540 618
497 571
439 507
380 443
First Stage Cool Speed - cfm
Low Medium- Medium
Low High
1050 1270 1445
975 1120 1295
865 1010 1120
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Heating Input Range and Blower Volume - CFM
50% 60%
830 995
774 930
718 865
644 781
570 697
Blower Speed Selections
High Low
(Default)
1620 1590
1460 1460
1290 1320
70% 80% 90%
1159 1324 1488
1085 1241 1397
1012 1159 1306
917 1054 1191
823 950 1076
Second Stage Cool Speed - cfm
Medium- Medium
Low High
1815 2010
1645 1845
1500 1645
100%
1653
1553
1453
1328
1203
High
(Default)
2195
2010
1860