Lennox SLP99UHV Series Unit Information page 10

BLO WER DATA
SLP99UH090XV48C 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 380 cfm.
®
35% 40%
769 835
713 776
656 716
595 652
534 589
First Stage Cool Speed - cfm
Low Medium- Medium
Low High
840 1005 1155
780 915 1045
690 835 955
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Heating Input Range and Blower Volume - CFM
50% 60%
968 1101
902 1028
836 955
767 882
699 809
Blower Speed Selections
High Low
(Default)
1315 1165
1190 1075
1070 935
70% 80% 90%
1234 1367 1500
1155 1281 1407
1075 1195 1314
997 1112 1227
919 1029 1139
Second Stage Cool Speed - cfm
Medium- Medium
Low High
1375 1580
1265 1440
1145 1320
100%
1633
1534
1434
1342
1249
High
(Default)
1770
1645
1465