Lennox SLP99UHV Series Unit Information page 15

BLO WER DATA
SLP99UH110XV60C 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%
767 861
738 825
708 789
655 731
602 673
First Stage Cool Speed - cfm
Low Medium- Medium
Low High
1060 1245 1345
970 1145 1265
885 1025 1110
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Heating Input Range and Blower Volume - CFM
50% 60%
1049 1237
1000 1174
951 1112
883 1035
816 958
Blower Speed Selections
High Low
(Default)
1545 1560
1395 1405
1250 1270
70% 80% 90%
1424 1612 1800
1349 1524 1699
1274 1436 1597
1187 1339 1491
1101 1243 1386
Second Stage Cool Speed - cfm
Medium- Medium
Low High
1740 1930
1565 1775
1425 1610
100%
1988
1874
1759
1644
1528
High
(Default)
2125
1945
1770