G71Mpp−60C−110 Blower Performance - Side Return Air - Lennox G71MPP SERIES Unit Information

G71MPP−60C−110 BLOWER PERFORMANCE (less filter) −− Side Return Air with Optional RAB Return Air Base
HEATING BLOWER PERFORMANCE
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
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.
Lennox Harmony IIIt Zone Control Applications − Minimum blower speed is 450 cfm.
The following control board configurations are available. See Installation Instructions for details and DIP switch settings.
Heat Mode (Heating Blower Performance Table):
With a single−stage thermostat, furnace will operate at three, staged rates (40/70/100%) with a time delay between each stage (values in grey−shaded
columns).
With two−stage thermostat there are two modes available.
Traditional two−stage mode − W1 demand results in 70% firing rate. W2 results in 100% firing rate. No delay between stages. (values shown in 70%
and 100% grey−shaded columns only).
Variable Rate Capacity Mode − furnace automatically adjusts firing rate based on first− and second−stage cycle times. (all columns)
Cool Mode (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 450 cfm.
G71MPP−60C−110 BLOWER MOTOR WATTS − COOLING − Side Return Air with Optional RAB Return Air Base
Blower Speed
Options
0 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80
Increase (+10%) Cool CFM
Low 105 125
Medium−Low 130 150
Medium−High 165 190
High 205 240
Default Cool CFM
Low 75 90
Medium−Low 100 120
Medium−High 135 155
High 170 195
Decrease (–10%) Cool CFM
Low 55 70
Medium−Low 65 80
Medium−High 100 125
High 140 160
0 through 0.80 in. w.g. External Static Pressure Range
40%
865
805
760
710
645
First Stage Cool Speed − cfm
Medium− Medium
Low
Low
1085 1155
955 1050
850 920
Motor Watts @ Various External Static Pressures − in. wg.
First Stage
150 175 200 220 245
175 200 220 240 270
220 250 275 305 335
285 330 360 390 420
115 135 160 185 205
145 165 185 205 230
175 200 230 260 280
225 255 290 320 350
90 110 135 155 175
105 130 150 170 195
150 180 200 220 240
180 200 230 260 285
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TABLE 8
Heating Input Range and Blower Volume − CFM
50% 60% 70%
1020 1175 1330
950 1095 1240
895 1030 1165
835 960 1090
765 880 1000
Blower Speed Selections
High
Low
High (Default)
1310 1475 1555
1185 1335 1415
1070 1195 1245
0 0.10 0.20 0.30 0.40 0.50 0.60 0.70
265 290 250 285
295 320 335 365
370 400 470 505
450 485 655 695
225 250 190 220
255 280 250 285
305 330 355 395
375 405 475 515
195 220 150 170
215 240 165 195
260 280 240 280
305 330 350 385
80% 90%
1485 1635
1385 1535
1300 1435
1210 1335
1110 1220
Second Stage Cool Speed − cfm
Medium− Medium
Low High
1685 1895
1540 1735
1350 1545
Second Stage
320 360 395 435 470
405 445 480 515 550
545 585 630 670 710
745 790 840 885 925
255 290 325 360 395
325 360 390 420 455
435 475 510 545 580
565 610 655 705 745
200 225 255 285 315
230 265 300 330 360
320 360 400 435 470
420 455 500 540 575
100%
1785
1680
1570
1460
1335
High
(Default)
2130
1930
1725
0.80
500 535
590 630
755 800
965 1005
430 460
485 520
620 660
785 825
340 370
390 420
505 540
610 645