Lennox SLP98DFV - Page 45

Page 45
BLOWER DATA
SLP98DF090XV48C BLOWER PERFORMANCE (less lter)
HEATING BLOWER PERFORMANCE - 0 through 0.8 in. w.g. External Static Pressure Range
Heating Adjust CFM Selections
Heating Input Range and Blower Volume - CFM
35% 40% 50% 60% 70% 80% 90% 100%
Increase (+15%) Heat CFM 723 790 925 1060 1195 1329 1464 1599
Increase (+7.5%) Heat CFM 690 752 878 1004 1129 1255 1381 1507
Default Heat CFM 656 714 831 948 1064 1181 1297 1414
Decrease (-7.5% ) Heat CFM 601 654 761 867 974 1081 1188 1295
Decrease (-15% ) Heat CFM 545 593 690 787 884 981 1078 1175
COOLING BLOWER PERFORMANCE - 0 through 1.0 in. w.g. External Static Pressure Range
Cooling Adjust CFM
Selections
Blower Speed Selections
First Stage Cool Speed - cfm Second Stage Cool Speed - cfm
Low Medium-
Low
Medium
High
High
(Default)
Low Medium-
Low
Medium
High
High
(Default)
Increase (+10%) Cool CFM 775 940 1100 1255 1120 1340 1535 1745
Default Cool CFM 690 875 975 1135 1000 1220 1425 1625
Decrease (-10%) Cool CFM 635 755 915 1025 920 1100 1270 1470
The effect of static pressure is included in air volumes shown.
The following control congurations 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 ring rate based on rst- 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%, 38%, 70% and 100% (DIP switch selectable) of the same second-stage COOL speed position minimum 250 cfm.
Lennox iHarmony
®
Zoning System Applications - Minimum blower speed is 380 cfm.