Lennox 80UGH User Manual

Page 4
BLOWER DATA
80UHG4/5-100 AND 80UHG4/5-120 BLOWER PERFORMANCE
External Static
Air Volume at Various Blower Speeds
External
Static
Pressure
High Medium-High Medium Medium-Low Low
in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s
0 0 2450 1155 2160 1020 1970 930 1700 800 1500 710
.05 12 2440 1150 2155 1015 1965 925 1695 800 1500 710
.10 25 2430 1145 2150 1015 1960 925 1690 800 1495 705
.15 37 2415 1140 2135 1010 1950 920 1685 795 1495 705
.20 50 2400 1135 2120 1000 1940 915 1680 795 1490 705
.25 62 2380 1125 2105 995 1930 910 1675 790 1480 700
.30 75 2360 1115 2090 985 1915 905 1670 790 1470 695
.40 100 2310 1090 2050 965 1870 880 1650 780 1440 680
.50 125 2260 1065 2000 945 1810 855 1610 760 1410 665
.60 150 2180 1030 1950 920 1750 825 1560 735 1370 645
.70 175 2100 990 1890 890 1700 800 1520 715 1330 630
NOTE  All air data is measured external to unit with 1 in. (25 mm) cleanable filter (not furnished) in place. Also see Filter Air Resistance table
FILTER AIR RESISTANCE
cfm (L/s) in. w.g. (Pa)
0 (0) 0.00 (0)
200 (95) 0.01 (2)
400 (185) 0.03 (7)
600 (280) 0.04 (10)
800 (375) 0.06 (15)
1000 (470) 0.09 (22)
1200 (560) 0.12 (30)
1400 (655) 0.15 (37)
1600 (750) 0.19 (47)
1800 (845) 0.23 (57)
2000 (935) 0.27 (67)
2200 (1030) 0.33 (82)
2400 (1125) 0.38 (95)
2600 (1220) 0.44 (110)
HIGH ALTITUDE DERATE
Refer to table below for manifold pressure settings for
Installations at different altitudes and different fuels.
NOTE−In Canada, certification for installations over
4500 ft. (1372m) above sea level is the jurisdictionof
the local authorities.
Manifold Absolute Pressure in. w.c. (kPa)
ALTITUDE ft. (m)
FUEL
0−4500
(0−1372)
4500−5500
(1372−1676)
5500−6500
(1676−1981)
6500−7500
(1982−2286)
NAT 3.5 (0.87) 3.4 (0.85) 3.3 (0.82) 3.2 (0.80)
LP 9.5 (2.36) 9.2 (2.29) 8.9 (2.21) 8.6 (2.14)
The combustion air inducer prove switches are factory
set and are not to be adjusted.
At elevations of 4500 ft. (1372m) or greater, change factory
installed pressure switch to switch listed in table below.
UNIT MODEL
PRESSURE SWITCH
PART NUMBER
80UHG−45 NO CHANGE
80UHG−60 NO CHANGE
80UHG−75 88J8001
80UHG−100 18L2401
80UHG−120 18L2401

Lennox 80UGH Specifications

General

Brand	Lennox
Model	80UGH
Category	Furnace
Language	English