56
TABLE 15
90 PLUS AIR FLOW PERFORMANCE
CFM @ ESP
MODEL BLOWER/
SPEED
MOTOR HP .1 .2 .3 .4 .5 .6 .7
UPFLOW MODELS
(-)GRL-04 11 X 7 /
1
⁄
2
LOW 805 780 760 720 685 645 605
*M-LO 920 885 850 810 775 730 690
M-HI 1140 1110 1085 1045 1010 950 890
HIGH 1360 1320 1280 1235 1195 1140 1080
(-)GRL-07(A) 11 X 7 /
1
⁄
2
LOW 780 745 710 675 640 595 555
M-LO 880 850 825 785 750 702 655
*M-HI 1090 1050 1010 970 925 875 825
HIGH 1300 1255 1210 1160 1110 1055 1005
(-)GRL-06 11 X 7 /
1
⁄
2
LOW 770 740 710 675 645 605 570
*M-LO 880 845 815 790 760 715 670
M-HI 1060 1025 990 960 925 880 835
HIGH 1260 1215 1175 1135 1100 1040 985
(-)GRL-07(B) 12 X 7 /
3
⁄
4
LOW 1105 1095 1080 1050 1030 1010 990
*M-LO 1290 1275 1260 1220 1195 1170 1140
M-HI 1480 1435 1415 1390 1370 1300 1255
HIGH 1705 1665 1615 1570 1540 1475 1400
(-)GRL-09** 12 X 11 /
3
⁄
4
LOW 1235 1210 1185 1150 1120 1075 1035
M-LO 1490 1465 1440 1405 1375 1315 1255
*M-HI 1720 1670 1620 1600 1580 1520 1460
HIGH 2100 2050 2000 1955 1910 1825 1745
(-)GRL-10** 12 X 11 /
3
⁄
4
LOW 1230 1205 1180 1155 1130 1090 1050
M-LO 1490 1445 1405 1375 1350 1295 1240
*M-HI 1710 1665 1620 1580 1540 1475 1410
HIGH 2010 1955 1900 1855 1810 1710 1610
(-)GRK-12** 11 X 10 /
3
⁄
4
LOW 1320 1305 1290 1260 1230 1185 1140
M-LO 1610 1580 1555 1515 1475 1415 1355
*M-HI 1870 1820 1775 1715 1660 1590 1520
HIGH 2115 2050 1990 1945 1900 1795 1690
DOWNFLOW/HORIZONTAL MODELS
(-)GTK-06 11 X 7 /
1
⁄
2
LOW 795 760 730 695 660 615 570
*M-LO 910 885 860 815 770 725 680
M-HI 1115 1080 1045 1005 965 920 875
HIGH 1365 1315 1270 1225 1180 1125 1070
(-)GTK-07(A) 11 X 7 /
1
⁄
2
LOW 780 750 720 675 635 595 555
M-LO 890 860 835 790 750 705 660
*M-HI 1100 1060 1025 980 940 890 845
HIGH 1340 1295 1250 1200 1150 1090 1025
(-)GTK-07(B) 11 X 7 /
3
⁄
4
LOW 1185 1160 1140 1115 1095 1065 1040
*M-LO 1405 1375 1350 1310 1270 1235 1195
M-HI 1595 1560 1525 1480 1440 1380 1325
HIGH 1835 1780 1730 1675 1625 1555 1480
(-)GTK-09 12 X 11 /
3
⁄
4
LOW 1155 1125 1100 1080 1060 1000 940
*M-LO 1420 1400 1380 1365 1350 1260 1175
M-HI 1605 1575 1550 1560 1570 1480 1390
HIGH 2005 1965 1930 1890 1850 1765 1680
(-)GTK-10 12 X 11 /
3
⁄
4
LOW 1180 1150 1120 1100 1080 1025 970
*M-LO 1460 1425 1390 1375 1360 1280 1200
M-HI 1680 1645 1615 1585 1560 1490 1420
HIGH 2055 2000 1940 1880 1820 1745 1675
(-)GTK-12 11 X 10 /
3
⁄
4
LOW 1285 1250 1215 1235 1260 1230 1200
*M-HI 1590 1565 1540 1505 1475 1425 1375
M-HI 1840 1820 1800 1750 1700 1645 1590
HIGH 2315 2250 2185 2110 2040 1965 1890
* Factory-Set High Heating speed
A = 17
1
⁄
2
" Cabinet Size
B = 21" Cabinet Size
NOTE: CFM valves represent furnace-only airflow ratings.
**Where the maximum air flow is above 1800 CFM, we recommend both sides or 1 side and bottom to be used to maximize air flow.
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