GENERAC® GUARDIAN® SERIES
STANDBY GENERATORS - PREPACKAGED
20 kW
Air-Cooled Gas Engine Generator Sets
INCLUDES:
Standby Power Rating
Model 005875-1 (Aluminum - Gray) - 20 kW 60Hz
®
• True Power Electrical Technology
• Two Line LCD Tri-lingual
Digital Nexus™ Controller
• Electronic Governor
• 200 Amp Service Rated Nexus Smart
Switch™ with Digital Load Management
Technology, NEMA 3R Rated
• External Main Circuit Breaker,
System Status & Maintenance Interval
LED Indicators and GFCI Duplex Outlet
• Sound Attenuated Enclosure
• Flexible Fuel Line Connector
• Composite Mounting Pad
• Base Fascia
• Natural Gas or LP Gas Operation
• 3 Year Limited Warranty
• UL 2200 Listed
FEATURES
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INNOVATIVE DESIGN & PROTOTYPE TESTING are key components
of GENERAC’S success in “IMPROVING POWER BY DESIGN.” But it
doesn’t stop there. Total commitment to component testing, reliability
testing, environmental testing, destruction and life testing, plus testing
to applicable CSA, NEMA, EGSA, and other standards, allows you to
choose GENERAC POWER SYSTEMS with the confidence that these
systems will provide superior performance.
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SOLID-STATE, FREQUENCY COMPENSATED VOLTAGE REGULATION.
This state-of-the-art power maximizing regulation system is standard on
all Generac models. It provides optimized FAST RESPONSE to changing
load conditions and MAXIMUM MOTOR STARTING CAPABILITY by
electronically torque-matching the surge loads to the engine. Digital
voltage regulation at +/- 1%.
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TRUE POWER® ELECTRICAL TECHNOLOGY: Superior harmonics and
sine wave form produce less than 5% Total Harmonic Distortion for utility
quality power. This allows confident operation of sensitive electronic equipment
and micro-chip based appliances, such as variable speed HVAC.
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SINGLE SOURCE SERVICE RESPONSE from Generac’s extensive dealer
network provides parts and service know-how for the entire unit, from the
engine to the smallest electronic component.
TEST CRITERIA:
GENERAC TRANSFER SWITCHES. Long life and reliability are
synonymous with GENERAC POWER SYSTEMS. One reason for this
confidence is that the GENERAC product line includes its own transfer
systems and controls for total system compatibility.
PROTOTYPE TESTED
SYSTEM TORSIONAL TESTED
NEMA MG1-22 EVALUATION
MOTOR STARTING ABILITY
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®
SPECIFICATIONS
GENERATOR
Model 005875-1 (20 kW)
Rated Maximum Continuous Power Capacity (LP)
Rated Maximum Continuous Power Capacity (NG)
Rated Voltage
20,000 Watts*
18,000 Watts*
240
Rated Maximum Continuous Load Current – 240 Volts
Total Harmonic Distortion
83.3 LP/75 NG
Less than 5%
Main Line Circuit Breaker
90 Amp
Phase
1
Number of Rotor Poles
2
Rated AC Frequency
60Hz
Power Factor
1
Battery Requirement (not included)
Unit Weight (Pounds/Kilos)
Group 26R 12 Volts and 525 Cold-cranking Amperes Minimum
451/204.6
Dimensions (L x W x H) Inches/mm
Sound output in dB(A) at 23 ft. with generator operating at normal load
Sound output in dB(A) at 23 ft. with generator in Quiet-Test™ low speed exercise mode
48 x 25 x 29 (1218 x 638 x 732)
66
60
ENGINE
Model 005875-1 (20 kW)
Type of Engine
GENERAC OHVI V-TWIN
Number of Cylinders
Displacement
2
999cc
Cylinder Block
Aluminum w/Cast Iron Sleeve
Overhead Valve
Solid-state w/Magneto
Electronic
Valve Arrangement
Ignition System
Governor System
Compression Ratio
Starter
9.5:1
12 Vdc
Oil Capacity Including Filter
Operating RPM
Approx. 1.9 Qts./1.8L
3,600
Fuel Consumption
Natural Gas
cu.ft./hr.
1/2 Load
Full Load
206
294
3
Liquid Propane ft /hr (gal/hr) [Liter/hr]
1/2 Load
Full Load
69 (1.89) [7.15]
106 (2.90) [10.98]
Required fuel pressure to generator fuel inlet at all load ranges - 5 to 7 inches of water column for natural gas, 10 to 12 inches of water column for LP gas
For Btu content, multiply ft3/hr x 2520 (LP) or ft3/hr x 1000 (NG)
CONTROLS
2-Line Plain Text LCD Display
Mode Switch
Simple user interface for ease of operation.
-Auto
Automatic Start on Utility failure. 7 day exerciser.
-Off
Stops unit. Power is removed. Control and charger still operate.
-Manual/Test (start)
Start with starter control, unit stays on. If utility fails, transfer to load takes place.
Programmable start delay between 10-30 seconds
Engine Start Sequence
Engine Warm-up
Standard
Cyclic cranking: 16 sec. on, 7 rest (90 sec. maximum duration).
5 seconds
Engine Cool-Down
1 minute
Starter Lock-out
Starter cannot re-engage until 5 sec. after engine has stopped.
Smart Battery Charger
Standard
Standard
Standard
Standard, 72Hz
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Automatic Voltage Regulation with Over and Under Voltage Protection
Automatic Low Oil Pressure Shutdown
Overspeed Shutdown
High Temperature Shutdown
Overcrank Protection
Safety Fused
Failure to Transfer Protection
Low Battery Protection
50 Event Run Log
Future Set Capable Exerciser
Incorrect Wiring Protection
Internal Fault Protection
Common External Fault Capability
Rating definitions - Standby: Applicable for supplying emergency power for the duration of the utility power outage. No overload capability is available for this rating. (All ratings in accordance with BS5514,
ISO3046 and DIN6271). * 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
decreases about 3.5 percent for each 1,000 feet above sea level. Sound output ratings from certain points on the generator subject to change based on installation parameters.
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Generac® Guardian® Series Standby Generator - 20 kW
TRANSFER SWITCH
No. of Poles
Model 005875-1
Transfer Switch Features
2
Current Rating (amps)
Voltage Rating (VAC)
Utility Voltage Monitor (fixed)
-Pick-up
-Dropout
Return to Utility
200
250
• Includes Digital Load Management technology standard (DLM).
• Intelligently manages two air conditioner loads with no additional hardware.
80%
60%
approx. 13 sec.
Standard
• Up to four more large (240V) loads can be managed when used in
conjunction with DLM modules.
Exerciser weekly for 12 minutes
UL Listed
Standard
• Electrically operated, mechanically-held contacts for fast, clean
connections.
Enclosure Type
Withstand Rating (Amps)
Lug Range
NEMA 3R
10,000
400MCM - #4
• Rated for all classes of load, 100% equipment rated, both inductive and
resistive.
• Dual coil design.
• Service Rated.
W1
• NEMA 3R aluminum outdoor enclosure.
• Main contacts are silver plated or silver alloy to resist welding and sticking.
200 Amps 120/240, 1ø
Open Transition Service Rated
H1
Height
Width
H2
Depth
H1
Inches 27.24
H2
30.0
W1
11.4
W2
13.5
7.09
mm 692.0 762.4 289.0 343.0 180.0
DEPTH
W2
Design and specifications subject to change without notice. Dimensions shown are approximate. Contact your Generac dealer for certified drawings. DO NOT USE THESE DIMENSIONS FOR INSTALLATION PURPOSES.
637.6
[25.1]
1218
[47.9]
731.9
[28.8]
®
642
[25.3]
76.2 [3.0]
PEA GRAVEL
MINIMUM
1226
[48.3]
FRONT VIEW
LEFT SIDE VIEW
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AVAILABLE ACCESSORIES
Model #
Product
Description
Every standby generator requires a battery to start the system. Generac offers the
recommended 26R wet cell battery for use with all air-cooled standby product.
5819
26R Wet Cell Battery
If the temperature regularly falls below 32° F, install a cold weather kit to maintain
optimal battery temperature. Kit consists of battery warmer with thermostat built
into the wrap.
6212
5621
5704
5665
5928
5951
5937
Cold Weather Kit
Auxiliary Transfer Switch
Contact Kit
The auxiliary transfer switch contact kit allows the transfer switch to lock out a
single large electrical load you may not need.
Paint Kit
Medium Gray Kit
Generac's scheduled maintenance kits provide all the hardware necessary to
perform complete routine maintenance on a Generac automatic standby generator.
Scheduled Maintenance Kit
Nexus Wireless Remote
Completely wireless and battery powered, Generac's Nexus wireless remote monitor
provides you with instant status information without ever leaving the house. Not
compatible with CorePower or EcoGen systems.
Remotely control generator functions with the advanced model's LCD display. In
addition to remote testing of the generator, set the excercise cycle and maintenance
interval reminders. Not compatible with CorePower or EcoGen systems.
Advanced Nexus Wireless
Remote
DLM Modules are used in conjunction with the Nexus Smart Switch to increase
its load management capabilities. It gives the Nexus Smart Switch additional load
management flexibility not found in any other transfer switch.
DLM Load Control Module
(50 Amps)
®
Generac Power Systems, Inc. • S45 W29290 HWY. 59, Waukesha, WI 53189 • generac.com
©2012 Generac Power Systems, Inc. All rights reserved. All specifications are subject to change without notice. Bulletin 0186160SBY-J Printed in U.S.A. 10/15/12
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