Lennox SLP99UHV Series Unit Information page 7

BLO WER DATA
SLP99UH090XV36C 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 250 cfm.
Lennox iHarmony Zoning System Applications - Minimum blower speed is 250 cfm.
®
35% 40%
687 734
654 697
621 660
581 616
540 572
First Stage Cool Speed - cfm
Low Medium- Medium
Low High
625 710 830
565 670 760
520 610 685
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Heating Input Range and Blower Volume - CFM
50% 60%
827 921
782 867
737 814
687 757
637 701
Blower Speed Selections
High Low
(Default)
950 875
860 800
785 720
70% 80% 90%
1014 1108 1201
953 1038 1123
891 968 1045
828 899 970
766 830 895
Second Stage Cool Speed - cfm
Medium- Medium
Low High
1040 1210
945 1100
840 970
100%
1295
1209
1122
1041
959
High
(Default)
1360
1240
1115