Lennox SLP99UHV Series Unit Information page 17

BLO WER DATA
SLP99UH135XV60D 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%
949 1033
879 957
808 881
748 817
687 753
First Stage Cool Speed - cfm
Low Medium- Medium
Low High
1070 1260 1410
980 1115 1255
865 1020 1115
Page 17
Heating Input Range and Blower Volume - CFM
50% 60%
1200 1367
1113 1269
1026 1172
956 1095
886 1019
Blower Speed Selections
High Low
(Default)
1555 1565
1430 1445
1280 1290
70% 80% 90%
1534 1701 1868
1426 1582 1738
1317 1463 1608
1235 1374 1513
1152 1284 1417
Second Stage Cool Speed - cfm
Medium- Medium
Low High
1750 1970
1615 1805
1470 1650
100%
2035
1895
1754
1652
1550
High
(Default)
2190
1985
1805