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BLOWER DATA
SLP98UH090V48C BLOWER PERFORMANCE (less filter)
RIGHT SIDE RETURN AIR WITH OPTIONAL RETURN AIR BASE
HEATING BLOWER PERFORMANCE
Heating Adjust CFM Selections
Heating Input Range and Blower Volume - CFM
35%
40%
50%
60%
70%
80%
90%
100%
Increase (+15%) Heat CFM
764
828
956
1084
1213
1341
1469
1597
Increase (+7.5%) Heat CFM
705
766
888
1010
1132
1255
1377
1499
Default Heat CFM
645
703
819
936
1052
1168
1285
1401
Decrease (-7.5% ) Heat CFM
594
650
762
874
986
1099
1211
1323
Decrease (-15% ) Heat CFM
542
596
704
812
921
1029
1137
1245
COOLING BLOWER PERFORMANCE
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
840
955
1120
1280
1160
1360
1530
1740
Default Cool CFM
775
910
1010
1170
1060
1240
1400
1590
Decrease (-10%) Cool CFM
695
815
930
1045
925
1130
1295
1440
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
icomfort Touch™ Communicating Thermostat:
- Variable Rate Capacity Mode - furnace automatically adjusts firing rate based on first- and second-stage cycle times
- 35%, 60%, 80%, 100% (four-stage) with time delays in-between
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 300 cfm.
Lennox Harmony III™ Zoning System Applications - Minimum blower speed is 380 cfm (SLP98UH090V48C) and 450 cfm (SLP98UH090V60C).
SLP98UH090V60C BLOWER PERFORMANCE (less filter)
BOTTOM RETURN AIR
HEATING BLOWER PERFORMANCE
Heating Adjust CFM Selections
Heating Input Range and Blower Volume - CFM
35%
40%
50%
60%
70%
80%
90%
100%
Increase (+15%) Heat CFM
583
665
830
995
1159
1324
1488
1653
Increase (+7.5%) Heat CFM
540
618
774
930
1085
1241
1397
1553
Default Heat CFM
497
571
718
865
1012
1159
1306
1453
Decrease (-7.5% ) Heat CFM
439
507
644
781
917
1054
1191
1328
Decrease (-15% ) Heat CFM
380
443
570
697
823
950
1076
1203
COOLING BLOWER PERFORMANCE
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
1050
1270
1445
1620
1590
1815
2010
2195
Default Cool CFM
975
1120
1295
1460
1460
1645
1845
2010
Decrease (-10%) Cool CFM
865
1010
1120
1290
1320
1500
1645
1860