Fully Automatic Home Standby Generator (NG/LP)

Includes: Generac LP or Natural Gas Engine Trupower Technology for Sensative Circuits Two Line LCD Digital Nexus™ Controller Automatic Transfer Switch Composite Mounting Pad Flexible Fuel Line Prewired Electrical Conduit Box Isochronous Electronic Governor Smart Battery Charger UV/Ozone Resistant Hoses ±1% Voltage Regulation High efficiency, low distortion alternator UL2200 Listed Sound attenuated acoustic enclosure Electrostatically applied powder paint Whisper-Test™ low noise level exercise Acoustically designed engine cooling system High flow low noise exhaust system Watertight electrical connectors Vibration isolated from mounting base Easily accessible for maintenance Rodent proof construction

Model Number 5873 Rated Power (LP / NG) 17/16 kW Rated Amps @ 240 V (LP/NG) 70.8/66.6 Surge Watts - 240V, 1 Ø 29,825 Surge Amps 124 Engine (Generac OHVI) 999 cc / V-twin Alternator RPM 3600 Enclosure Steel Whisper Test No Sound Level (dBA @ exercise) 60 (dBA @ normal operation) 66 Dimensions (L" x W" x H") 48x25x29 Compatible Transfer Switches 100 Amp / 16 circuit Unit Weight (lbs.) 455 Full Spec Sheet Specification Sheet VIEW GENERATOR DRAWING TRANSFER SWITCH DRAWING Need to Know Gas Piping Sizes?

What’s the advantage of an aluminum enclosure? In addition to its sturdy galvanneal steel enclosure with RhinoCoat, Generac is one of the few companies to offer premium aluminum enclosures for its residential standby generators. Aluminum enclosures are naturally rust and corrosion resistant. For salt air or high humidity conditions, aluminum is highly recommended to ensure decades of worry free service. For steel enclosure see the Model 5873. Generac's Nexus™ Controller is the most comprehensive available. The dual line, tri-lingual LCD display allows for easy monitoring and management of generator functions. Simple field conversion from natural gas to LP. Generac OHVI Engine was designed specifically for generators. It out peforms most competitive generator engines with an engine life that is three to four times longer and has a significantly longer period between scheduled maintenance checkups. Trupower Technology provides clean, smooth operation of sensitive electronics and appliances. Sturdy, galvanneal steel enclosure with RhinoCoat™ finish for superior weather protection, modeled to withstand 150 mph winds. External “At-a-Glance” indicator lights offer an easy way to tell generator status without opening the generator enclosure. Added Sound Reduction with enclosures that are lined with sound reducing foam panels for further noise reduction. Hour Meter monitors run time, providing information to determine maintenance intervals. Easiest installation on the market and an excellent value when purchased pre-packaged with a pre-wired transfer switch, or customize your system by purchasing the generator and transfer switch separately. Composite mounting pad is included, eliminating the need to pour a concrete base.

		Generator Features: External GFCI Outlet Composite Mounting Pad Pre-wired External Connection Box External Main Circuit Breaker, GFCI Duplex Outlet Flexible Fuel Line Connector Natural Gas or LP Gas Operation Weekly Exercise Timer
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EZ Transfer Switch Features: 16 Circuit EZ Automatic Transfer w/ Priority Load Center Electrically operated, mechanically-held contacts for fast, positive connections. Rated for all classes of load, 100% equipment rated, both inductive and resistive. 2 pole, 250 VAC contactors. 160 millisecond transfer time. Dual coil design. Main contacts are silver plated or silver alloy to resist welding and sticking. NEMA 1 (indoor rated) enclosure is standard on the 100 amp switch. Pre-wired 30 foot whip to connect to the pre-wired external connection box. Pre-wired 2 foot whip, color coded to connect into the existing electrical panel.

The Power Behind the #1 Home Standby Generator Geneac OHVI® engine Generac has engineered and manufactures the only true generator engine.Why is this important? Generators are often required to run for hours at a time, day after day. Generac’s OHVI engine utilizes the same type of pressurized oil lubrication used to give automobile engines long and trouble free lives. This means a significantly longer life than competitive engines - an unprecedented three to four times longer.

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How Automatic Standby Generators Work

New for 2010 upgrade benefit Nexus LCD digital trilingual controllers Technologically advanced intelligent controls External breaker connections on all units Allows for electricity shut-off without opening / unlocking the enclosure for safety (code compliant) 180º swing capability on breaker box door Allows for full range of motion for ease of access during installation and servicing Prop rod for breaker box door Allows door to stay open during connection and service Increased fan size and scroll elimination Better cooling capacity and tonal quality = quiet operation Electronic governing and brushed alternators on all units Precision engine response and voltage control for fast reaction when loads are applied Torq screws replaced with common screws Special tools no longer required Improved structural integrity Modeled to withstand 150 mph winds on both steel and aluminum enclosures Expanded cold weather accessories Ensures maximum generator performance in cold climates Snap-in remote accessory cover plate Easy remote monitor installation Spade connectors replace ring terminals on low oil sensor Quick disconnecting for service and diagnostic capability

NEXUS CONTROLLER FEATURES The new Nexus controller for air-cooled generators (8 -20 kW) not only includes upgraded features available in the original controller, but also includes several new features, making it the most comprehensive air-cooled controller available. External common fault alarm Allows for a connection to drive a common alarm if any shutdown for the generator occurs (i.e., security system, home automation integration) Wiring error Gives indication if transfer switch is connected incorrectly without allowing board damage Battery sentinel Monitors the battery to indicate that the battery is going to fail or if it has failed Generator high voltage shutdown Shuts down generator at preset levels to avoid high voltage damage to appliances Generator low voltage shutdown Shuts down generator at preset levels when voltage dips too low Internal fault shutdown Shuts down generator in event of controller failure Master Nexus Controller includes voltage regulator, battery charger and engine controller +/-1% voltage regulation, smart charging battery system where output voltage is dependent upon ambient temperature and only charges the system when needed now available on all models: LCD display and keyboard Remote maintenance LEDs Time & date Alarm log Run log Set exercise via display Engine hour display RPM display & sensor loss alarm Frequency Battery voltage, Underspeed/fail to transfer alarm, High engine temperature alarm, Low oil, display Trilingual display

	Installation Overview

All conduits are color coded and prewired Select the circuits needed during emergency Jumper the circuits over to the Generat EZ panel Selected Circuits come on during loss of power from the utility Once power is restored from the utility the transfer switch will transfer back and the generator will shutdown Time to transfer is only 20 seconds

GENERATOR SIZING By sizing your generator according to your needs instead of your home’s square footage, you won’t overspend or be surprised by inadequate coverage. Decide what items are important to you in a power outage. these items are powered through circuits in your breaker box. the number of chosen circuits decides your generator size. Use this chart as a guide to determine the power you need.

Generator Size 8 kw 10 kw 12 kw 14 kw 16 kw 20 kw Number of Circuits 8 10 12 14 16 Whole House Air conditioning 2-ton 3-ton 3-ton up to 4-ton* up to 5-ton* up to 5-ton* Kitchen - - - - - - Furnace - - - - - - Sump Pump - - - - - - Bathrooms on Emergency 1 1 2 2 3 3+ Bedrooms on Emergency 1 2 3 4 5 5+ Living Areas - - - - - - Well Pump or Heater   - - - - - Home Office     - - - - Garage     - - - -