Lennox SLP99DFV Series User Manual

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BLOWER DATA
SLP99DF090XV36C 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 710 756 848 940 1033 1125 1217 1309
Increase (+7.5%) Heat CFM 670 713 799 885 971 1057 1143 1230
Default Heat CFM 629 669 749 829 910 990 1070 1150
Decrease (-7.5% ) Heat CFM 559 599 681 763 845 927 1009 1091
Decrease (-15% ) Heat CFM 488 530 614 697 781 865 948 1032
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 610 770 900 1035 920 1080 1215 1385
Default Cool CFM 545 690 805 920 835 1000 1135 1255
Decrease (-10%) Cool CFM 465 620 720 810 750 890 1025 1145
The e󰀨ect 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% 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.
SLP99DF090XV36C BLOWER MOTOR WATTS - COOLING
Blower Speed
Options
Motor Watts @ Various External Static Pressures - in. wg.
First Stage Second Stage
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Increase (+10%) Cool CFM
Low 21 33 51 67 82 94 111 124 139 54 77 102 117 151 173 191 216 239 262 283
Medium-Low 40 60 80 92 114 130 150 170 190 111 130 152 183 209 231 256 278 296 324 338
Medium-High 59 80 103 126 152 173 194 220 234 160 180 216 240 261 293 318 339 374 392 419
High 76 102 121 160 178 208 229 251 283 223 247 268 319 350 384 411 456 460 497 511
Default Cool CFM
Low 16 29 41 59 72 84 98 112 123 46 69 84 106 132 142 170 194 211 232 248
Medium-Low 33 47 67 81 95 116 128 145 161 82 98 127 153 174 200 218 244 264 285 303
Medium-High 47 69 84 106 128 145 163 184 207 121 137 167 201 225 252 273 291 306 339 370
High 57 78 101 130 150 176 195 220 238 168 194 226 248 276 315 340 367 400 418 441
Decrease (-10%) Cool CFM
Low 10 24 34 47 59 73 86 96 109 37 57 74 88 102 121 140 161 172 193 212
Medium-Low 23 36 56 69 82 99 113 129 143 50 70 89 111 137 158 182 197 221 234 259
Medium-High 37 52 71 88 102 120 139 153 170 82 104 124 154 181 207 227 253 275 294 316
High 46 68 83 106 125 137 167 182 204 136 158 178 210 242 255 282 299 327 357 374

Lennox SLP99DFV Series Specifications

General

Brand	Lennox
Model	SLP99DFV Series
Category	Furnace
Language	English