Lennox G21Q Series Unit Information

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BLOWER DATA (contd.) (units equipped with conventional multispeed blower motor)
GSR21Q450 BLOWER PERFORMANCE
External Static Air Volume (cfm) @ Various Speeds
Pressure
(in. wg)
High MedHigh MedLow Low
0 1935 1725 1530 1225
.05 1900 1695 1515 1220
.10 1865 1665 1490 1210
.15 1825 1630 1465 1195
.20 1790 1595 1435 1175
.25 1745 1560 1400 1140
.30 1700 1520 1365 1105
.40 1585 1420 1285 1030
.50 1470 1320 1200 975
.60 1360 1215 1115 920
.70 1235 1115 1030    
.80 1105 1000 930    
NOTE  All cfm data is measured external to unit with the air filter in place.
GSR21Q4/580 BLOWER PERFORMANCE
ExternalStatic Air Volume (cfm) @ Various Speeds
Pressure
(in. wg)
High MedHigh Medium MedLow Low
0 2355 2205 1965 1740 1520
.05 2325 2175 1940 1715 1495
.10 2290 2150 1920 1695 1475
.15 2255 2115 1890 1670 1450
.20 2220 2085 1860 1645 1425
.25 2185 2050 1830 1620 1400
.30 2150 2020 1800 1595 1375
.40 2080 1950 1745 1540 1320
.50 2000 1880 1680 1475 1260
.60 1915 1805 1615 1410 1195
.70 1825 1720 1540 1330    
.80 1730 1635 1460 1240    
NOTE  All cfm data is measured external to unit with the air filter in place.
GSR21Q4/5100 BLOWER PERFORMANCE
ExternalStatic Air Volume (cfm) @ Various Speeds
Pressure
(in. wg)
High MedHigh Medium MedLow Low
0 2275 2140 1940 1725 1520
.05 2245 2110 1915 1700 1490
.10 2215 2075 1885 1675 1465
.15 2185 2040 1860 1645 1435
.20 2150 2005 1830 1620 1410
.25 2115 1970 1805 1590 1380
.30 2075 1935 1775 1560 1350
.40 1990 1870 1710 1500 1290
.50 1925 1800 1645 1435 1235
.60 1835 1730 1570 1370 1175
.70 1760 1650 1490 1300    
.80 1675 1570 1400 1225    
NOTE  All cfm data is measured external to unit with the air filter in place.
Units Equipped With an Electronically Controlled Blower Motor ICM2
G21V3−60/80 BLOWER MOTOR PERFORMANCE
(For Static Pressure 0.0" to 0.8" w.g.)
ADJUST
LOW SPEED HIGH (COOL) SPEED HEAT SPEED
ADJUST
JUMPER
SETTING
VSP2−1 JUMPER POSITION VSP2−1 JUMPER POSITION VSP2−1 JUMPER POSITION
SETTING
1 2 3 4 1 2 3 4 1 2 3 4
+ 540 700 830 1000 1150 1260 1400 1410 1150 1250 1350 1420
NORM 490 630 740 880 1040 1140 1240 1265 1030 1140 1220 1300
− 440 560 670 800 940 1030 1140 1160 920 1020 1100 1190
NOTE: ADJUST position on JPB1 (NORM", +", or −") determines the row of CFM available to use.
NOTE  All air data is measured external to the unit with the air filter in place.
Blower maintains a constant CFM throughout a range of varying static pressures.

Lennox G21Q Series Specifications

General

Brand	Lennox
Model	G21Q Series
Category	Industrial Equipment
Language	English