Specifications; Fuel Consumption - Guardian 4389 Repair Manual

Rated Max. Continuous Power Capacity (Watts*)
Rated Voltage
Rated Max. Continuous Load Current (Amps)
120 Volts**
240 Volts
Main Line Circuit Breaker
Phase
Number of Rotor Poles
Rated AC Frequency
Power Factor
Battery Requirement
Weight
Output Sound Level @ 23 ft (7m) at full load
Normal Operating Range
* Maximum wattage and current are subject to and limited by such factors as fuel Btu content, ambient temperature, altitude, engine power and condition, etc. Maximum power decreas-
es about 3.5 percent for each 1,000 feet above sea level; and also will decrease about 1 percent for each 6° C (10° F) above 16° C (60° F) ambient temperature.
** Load current values shown for 120 volts are maximum TOTAL values for two separate circuits. The maximum current in each circuit must not exceed the value stated for 240 volts.
† 15,000 watt with upgrade kit 04578-0. Kit includes power harnesses and 70 amp 2-pole circuit breaker.
Type of Engine
Number of Cylinders
Rated Horsepower
Displacement
Cylinder Block
Valve Arrangement
Ignition System
Recommended Spark Plug
Spark Plug Gap
Compression Ratio
Starter
Oil Capacity Including Filter
Recommended Oil Filter
Recommended Air Filter
Operating RPM
Model #
04389, 04758
04556, 04759
04390, 04760
* Natural gas is in cubic feet per hour. **LP is in gallons per hour/cubic feet per hour.
STATOR WINDING RESISTANCE VALUES / ROTOR RESISTANCE
Power Winding: Across 11 & 22
Power Winding: Across 33 & 44
Excitation Winding: Across 2 & 6
Engine Run Winding: Across 55 & 66A
Battery Charge Winding: Across 66 & 77
Rotor Resistance
GENERATOR
Models 04389, 04758
6,000 NG/7,000 LP
120/240
50.0 NG/58.3 LP
25.0 NG/29.2 LP
30 Amp
1
2
60 Hz
1
Group 26/26R
12 Volts and
350 Cold-cranking
Amperes Minimum
452 Pounds
68 db (A)
ENGINE
Models 04389, 04758
GH-410
1
14.5 @ 3,600 rpm
410cc
Aluminum w/Cast
Iron Sleeve
Overhead Valves
Solid-state w/Magneto
RC12YC
0.76 mm (0.030 inch)
8.6:1
12 VDC
Approx. 1.5 Qts
Generac Part # 070185
Generac Part # 0C8127
3,600

FUEL CONSUMPTION

Natural Gas*
1/2 Load
74
114
148.5
Model 04692
0.190-0.208 ohms
0.190-0.208 ohms
1.442-1.670 ohms
0.104-0.120 ohms
0.137-0.158 ohms
15.42-17-85 ohms
Models 04456, 04759
12,000 NG/12,000 LP
120/240
100.0 NG/100.0 LP
50.0 NG/50.0 LP
50 Amp
1
2
60 Hz
1
Group 26/26R
12 Volts and
550 Cold-cranking
Amperes Minimum
470 Pounds
70.5db (A)
-20°F (-28.8°C) to 104°F (40°C)
Models 04456, 04759
GT-990
2
26 @ 3,600 rpm
992cc
Aluminum w/Cast
Iron Sleeve
Overhead Valves
Solid-state w/Magneto
RC12YC
0.5 mm (0.020 inch)
9.5:1
12 VDC
Approx. 1.7 Qts
Generac Part # 070185
Generac Part # 0C8127
3,600
Full Load 1/2 Load
105 0.91/33
185 1.34/48.9
240 1.73/63.2
Models 04389 Models 04456
04679, 04758 04759
0.223-0.259 ohms 0.115 ohms
0.223-0.259 ohms 0.115 ohms
1.53-1.77 ohms 0.745 ohms
0.100-0.169 ohms 0.109 ohms
0.146-0.169 ohms 0.164 ohms
11.88-13.76 ohms 15.9 ohms

SPECIFICATIONS

Model 04390, 04760
13,000 NG/15,000 LP†
120/240
108.3 NG/125.0 LP
54.2 NG/62.5 LP
60 Amp/70 Amp†
1
2
60 Hz
1
Group 26/26R
12 Volts and
550 Cold-cranking
Amperes Minimum
487 Pounds
71.5 db (A)
Models 04390, 04760
GT-990
2
30 @ 3,600 rpm
992cc
Aluminum w/Cast
Iron Sleeve
Overhead Valves
Solid-state w/Magneto
RC12YC
0.5 mm (0.020 inch)
9.5:1
12 VDC
Approx. 1.7 Qts
Generac Part # 070185
Generac Part # 0C8127
3,600
LP Vapor**
Full Load
1.21/44.1
2.17/79.0
2.80/102.3
Models 04390
04760
0.08/0.08 ohms
0.08/0.08 ohms
0.705 ohms
0.087 ohms
0.130 ohms
19.8 ohms
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