Generac Power Systems SG020 - Manual (Page 3)

STANDBY
SG020 SG025
GENERATOR OUTPUT VOLTAGE/KW-60Hz NG/LP Rated AMP NG/LP Rated AMP
120/240V, 1-phase, 1.0 pf 20 83.3 25 104.2
120/208V, 3-phase, 0.8 pf 20 69.5 25 86.8
120/240V, 3-phase, 0.8 pf 20 60.2 25 75.3
277/480V, 3-phase, 0.8 pf 20 30.1 25 37.6
MOTOR STARTING KVA
Maximum at 35% instantaneous voltage dip
with standard alternator; 60 hz 40 46
FUEL
Fuel consumption—60 hz—100% Load N.G. L.P. N.G. L.P.
ft. 3 /hr. 369 153 442 183
m 3 /hr. 10.4 4.3 12.5 5.2
COOLING
Coolant capacity
System lit.(US gal.) 6.6 (2) 6.6 (2)
Engine lit.(US gal.) 0.9 (0.25) 0.9 (0.25)
Radiator lit.(US gal.) 6.6 (1.75) 6.6 (1.75)
Coolant flow/min. 60 hz lit.(US gal.) 40 (10.6) 40 (10.6)
heat rejection to coolant 60 hz BTU/hr. 96,000 120,000
Cooling air flow 60 hz m 3 /min. (cfm) 45 (1590) 45 (1590)
COMBUSTION AIR REQUIREMENTS
Flow at rated power
60 hz m 3 /min. (cfm) 1.8 (65) 2.3 (81)
EXHAUST
Exhaust flow at rated output
60 hz m 3 /min. (cfm) 6.0 (212) 7.3 (260)
Max. recommended back pressure Kpa (hg) 5.0 (1.5") 5.0 (1.5")
Exhaust temp. at rated output o C ( o F) 593 (1100) 635 (1175)
Exhaust outlet size N.P.T. (female) 1.5" 1.5"
ENGINE
Rated RPM
60 hz 3600 3600
hP at rated KW 60 hz 30 37
Piston speed 60 hz m/min. (ft./min.) 590 (1937) 590 (1937)
BMEP (psi) 60 hz - psi 78 97
POWER ADJUSTMENT FOR AMBIENT CONDITIONS
Temperature
-3% for every 10 o C above - °C 40 25
-1.5% for every 10 o F above - °F 104 77
Altitude
-3% for every 300 m above - m 913 150
-3% for every 1000 ft. above - ft. 3000 500
OPERATING DATA
SG020 / SG025