Lennox SLP99UHV Series Unit Information page 6

BLOWER DATA
SLP99UH070XV36B BLOWER PERFORMANCE (less filter)
SINGLE SIDE RETURN AIR WITH OPTIONAL RETURN AIR BASE
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%
471 519
435 480
399 441
369 408
339 375
First Stage Cool Speed - cfm
Low Medium- Medium
Low High
595 715 815
520 655 755
490 595 670
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Heating Input Range and Blower Volume - CFM
50% 60%
614 709
570 660
526 611
486 564
446 517
Blower Speed Selections
High Low
(Default)
950 855
840 790
745 720
70% 80% 90%
805 900 996
751 841 931
696 781 866
643 721 799
589 660 732
Second Stage Cool Speed - cfm
Medium- Medium
Low High
1045 1205
945 1090
845 985
100%
1091
1021
951
877
803
High
(Default)
1350
1255
1130