Generac 17 kW 0062480 Manuel utilisateur

Catégorie
Groupes électrogènes
Taper
Manuel utilisateur
INSTALLATION
GUIDELINES
Air-cooled Generators
NOT INTENDED FOR USE IN CRITICAL LIFE SUPPORT
APPLICATIONS.
THIS PRODUCT CAN BE INSTALLED BY THE HOMEOWNER.
HOWEVER, IF YOU ARE UNCOMFORTABLE WITH THE SKILLS
OR TOOLS REQUIRED, HAVE A QUALIFIED ELECTRICIAN OR
CONTRACTOR PERFORM THE INSTALLATION.
DEADLY EXHAUST FUMES! OUTDOOR INSTALLATION ONLY!
THIS MANUAL MUST BE USED IN CONJUNCTION
WITH THE APPROPRIATE OWNER’S MANUAL.
This manual should remain with the unit.
WARNING!
California Proposition 65
Engine exhaust and some of its constituents are known to the state of California to cause cancer,
birth defects, and other reproductive harm.
WARNING!
California Proposition 65
This product contains or emits chemicals known to the state of California to cause cancer,
birth defects, and other reproductive harm.
1
Table of Contents
Section 1 — Safety Rules & General Information ..................................................................................................................................... 2
1.1 Introduction ............................................................................................................................................................................. 2
1.2 Safety Rules ........................................................................................................................................................................... 3
1.3 General Rules ........................................................................................................................................................................ 4
Section 2 — Unpacking/Inspection/Familiarization ................................................................................................................................... 6
2.1 Required Tools ....................................................................................................................................................................... 6
2.2 Unpacking .............................................................................................................................................................................. 7
2.3 Parts Shipped Loose .............................................................................................................................................................. 9
Section 3 — Site Selection and Preparation ........................................................................................................................................... 10
3.1 Site Selection ....................................................................................................................................................................... 10
3.2 Site Preparation .................................................................................................................................................................... 12
Section 4 — Generator Placement .......................................................................................................................................................... 13
4.1 Generator Placement ........................................................................................................................................................... 13
Section 5 — Fuel Conversion/Gas Requirements/Connections .............................................................................................................. 15
5.1 Fuel Conversion ................................................................................................................................................................... 15
5.2 Fuel Requirements and Recommendations ......................................................................................................................... 16
5.3 Fuel Consumption ................................................................................................................................................................ 17
5.4 Fuel Line Sizing .................................................................................................................................................................... 17
5.5 Installing and Connecting Gas Lines .................................................................................................................................... 18
Section 6 — Electrical Connections ........................................................................................................................................................ 21
6.1 Generator Connections ........................................................................................................................................................ 21
6.2 Control Wiring ....................................................................................................................................................................... 21
6.3 Main AC Wiring ..................................................................................................................................................................... 22
6.4 Battery Requirements ........................................................................................................................................................... 23
6.5 Battery Installation ................................................................................................................................................................ 23
Section 7 — Control Panel/Activation/Start-up/Testing ........................................................................................................................... 24
7.1 Control Panel Interface ......................................................................................................................................................... 24
7.2 Generator Activation ............................................................................................................................................................. 25
7.3 Before Initial Start-up ............................................................................................................................................................ 25
7.4 Check Manual Transfer Switch Operation ............................................................................................................................ 27
7.5 Electrical Checks .................................................................................................................................................................. 27
7.6 Generator Tests Under Load ................................................................................................................................................ 28
7.7 Checking Automatic Operation ............................................................................................................................................. 28
7.8 Installation Summary ............................................................................................................................................................ 29
Section 8 — Troubleshooting .................................................................................................................................................................. 30
Section 9 — Quick Reference Guide ....................................................................................................................................................... 31
Section 10 — Accessories ....................................................................................................................................................................... 32
Section 11— Notes .................................................................................................................................................................................. 33
Section 12 — Interconnection Diagram ................................................................................................................................................... 34
Section 13 — Installation Diagram .......................................................................................................................................................... 36
2
1.1 INTRODUCTION
Thank you for purchasing this compact, high performance, air-cooled, engine-driven generator. It is designed to automatically supply electrical power
to operate critical loads during a utility power failure.
This unit is factory installed in an all-weather, metal enclosure that is intended exclusively for outdoor installation. This generator will operate using
either vapor withdrawn liquid propane (LP) or natural gas (NG).
NOTE:
When sized properly, this generator is suitable for supplying typical residential loads such as Induction Motors (sump pumps, refrigerators,
air conditioners, furnaces, etc.), Electronic Components (computer, monitor, TV, etc.), Lighting Loads and Microwaves.
1.1.1 READ THIS MANUAL THOROUGHLY
If any portion of this manual is not understood, contact the nearest Dealer for starting, operating and servicing procedures.
Throughout this publication and on tags and decals affi xed to the generator, DANGER, WARNING, CAUTION and NOTE blocks are used to alert
personnel to special instructions about a particular operation that may be hazardous if performed incorrectly or carelessly. Observe them carefully.
Their defi nitions are as follows:
INDICATES A HAZARDOUS SITUATION OR ACTION WHICH, IF NOT AVOIDED, WILL RESULT IN DEATH OR SERIOUS INJURY.
Indicates a hazardous situation or action which, if not avoided, could result in death or serious injury.
Indicates a hazardous situation or action which, if not avoided, could result in minor or moderate injury.
NOTE: Notes contain additional information important to a procedure and will be found within the regular text body of this manual.
These safety warnings cannot eliminate the hazards that they indicate. Common sense and strict compliance with the special instructions while
performing the action or service are essential to preventing accidents.
Four commonly used safety symbols accompany the DANGER, WARNING and CAUTION blocks. The type of information each indicates is as
follows:
This symbol points out important safety information that, if not followed, could endanger personal safety and/or property of
others.
This symbol points out potential explosion hazard.

This symbol points out potential fire hazard.

This symbol points out potential electrical shock hazard.
The operator is responsible for proper and safe use of the equipment. The manufacturer strongly recommends that if the operator is also the owner,
to read their Owners Manual and thoroughly understand all instructions before using this equipment. The manufacturer also strongly recommends
instructing other users to properly start and operate the unit. This prepares them if they need to operate the equipment in an emergency.
1.1.2 HOW TO OBTAIN SERVICE
When the generator requires servicing or repairs, contact a Dealer for assistance. Service technicians are factory-trained and are capable of
handling all service needs. For assistance locating a dealer, call 1-888-436-3722.
When contacting a Dealer about parts and service, always supply the complete model number and serial number of the unit as given on its data decal,
which is located on the generator. See section “The Generator” for decal location.
Model No. ____________________ Serial No. _________________________
Section 1 Safety Rules & General Information
3
1.2 SAFETY RULES
Save These Instructions – The manufacturer suggests that these rules for safe operation be copied and posted near the unit’s
installation site. Safety should be stressed to all operators and potential operators of this equipment.
Study these SAFETY RULES carefully before installing, operating or servicing this equipment. Become familiar with this Installation Manual and
with the unit. The generator can operate safely, effi ciently and reliably only if it is properly installed, operated and maintained. Many accidents are
caused by failing to follow simple and fundamental rules or precautions.
The manufacturer cannot anticipate every possible circumstance that might involve a hazard. The warnings in this manual and on tags and decals
affi xed to the unit are, therefore, not all-inclusive. If using a procedure, work method or operating technique the manufacturer does not specifi cally
recommend, ensure that it is safe for others. Also, make sure the procedure, work method or operating technique utilized does not render the
generator unsafe.
Despite the safe design of this generator, operating this equipment imprudently, neglecting its maintenance or being careless can
cause possible injury or death. Permit only responsible and capable persons to install, operate and maintain this equipment.
Potentially lethal voltages are generated by these machines. Ensure all steps are taken to render the machine safe before attempt-
ing to work on the generator.
Parts of the generator are rotating and/or hot during operation. Exercise care near running generators.
Installation must always comply with applicable codes, standards, laws and regulations.
A running generator gives off carbon monoxide, an odorless, colorless poison gas. Breathing in carbon monoxide can cause head-
aches, fatigue, dizziness, nausea, vomitting, confusion, fainting, siezures or death.
.
1.2.1 GENERAL HAZARDS
For safety reasons, the manufacturer recommends that this equipment be installed by a Service Dealer or other competent, qualifi ed electrician
or installation technician who is familiar with applicable codes, standards and regulations. The operator also must comply with all such codes,
standards and regulations. Only an Authorized Service Dealer is allowed to perform warranty service on this unit.
The engine exhaust fumes contain carbon monoxide, which can be DEADLY. This dangerous gas, if breathed in suffi cient concentrations, can
cause unconsciousness or even death. Do NOT alter or add to the exhaust system or do anything that might render the system unsafe or in
noncompliance with applicable codes and standards.
Install a battery-operated carbon monoxide alarm indoors, according to manufacturers instructions/recommendations.
Adequate, unobstructed fl ow of cooling and ventilating air is critical to correct generator operation. Do not alter the installation or permit even
partial blockage of ventilation provisions, as this can seriously affect safe operation of the generator. The generator MUST be installed and
operated outdoors only.
Keep hands, feet, clothing, etc., away from drive belts, fans, and other moving or hot parts. Never remove any drive belt or fan guard while the
unit is operating.
When working on this equipment, remain alert at all times. Never work on the equipment when physically or mentally fatigued.
Inspect the generator regularly, and contact the nearest Dealer for parts needing repair or replacement.
Before performing any maintenance on the generator, disconnect its battery cables to prevent accidental start up. Disconnect the cable from the
battery post indicated by a NEGATIVE, NEG or (–) fi rst, then remove the POSITIVE, POS or (+) cable. When reconnecting the cables, connect
the POSITIVE cable fi rst, the NEGATIVE cable last.
Never use the generator or any of its parts as a step. Stepping on the unit can stress and break parts, and may result in dangerous operating
conditions from leaking exhaust gases, fuel leakage, oil leakage, etc.
4
1.2.2 ELECTRICAL HAZARDS
All generators covered by this manual produce dangerous electrical voltages and can cause fatal electrical shock. Utility power delivers extremely
high and dangerous voltages to the transfer switch, as does the standby generator when it is in operation. Avoid contact with bare wires,
terminals, connections, etc., while the unit is running. Ensure all appropriate covers, guards and barriers are in place, secured and/or locked
before operating the generator. If work must be done around an operating unit, stand on an insulated, dry surface to reduce shock hazard.
Do not handle any kind of electrical device while standing in water, while barefoot, or while hands or feet are wet. DANGEROUS ELECTRICAL
SHOCK MAY RESULT.
The National Electrical Code (NEC) requires the frame and external electrically conductive parts of the generator to be connected to an approved
earth ground. Local electrical codes also may require proper grounding of the generator electrical system.
After installing this home standby electrical system, the generator may crank and start at any time without warning. When this occurs, load circuits
are transferred to the STANDBY (generator) power source. To prevent possible injury if such a start and transfer occur, always set the generator
to the OFF mode, remove the 7.5 Amp fuse from the generator control panel, and disconnect the battery before working on equipment.
In case of accident caused by electric shock, immediately shut down the source of electrical power. If this is not possible, attempt to free the
victim from the live conductor. AVOID DIRECT CONTACT WITH THE VICTIM. Use a nonconducting implement, such as a dry rope or board, to
free the victim from the live conductor. If the victim is unconscious, apply fi rst aid and get immediate medical help.
Never wear jewelry when working on this equipment. Jewelry can conduct electricity resulting in electric shock, or may get caught in moving
components causing injury.
1.2.3 FIRE HAZARDS
For fi re safety, the generator must be installed and maintained properly. Installation must always comply with applicable codes, standards, laws
and regulations. Adhere strictly to local, state and national electrical and building codes. Comply with regulations the Occupational Safety and
Health Administration (OSHA) has established. Also, ensure that the generator is installed in accordance with the manufacturer’s instructions
and recommendations. Following proper installation, do nothing that might alter a safe installation and render the unit in noncompliance with the
aforementioned codes, standards, laws and regulations.
Keep a fi re extinguisher near the generator at all times. Extinguishers rated “ABC” by the National Fire Protection Association are appropriate for
use on the standby electric system. Keep the extinguisher properly charged and be familiar with its use. Consult the local fi re department with any
questions pertaining to fi re extinguishers.
1.2.4 EXPLOSION HAZARDS
Do not smoke around the generator. Wipe up any fuel or oil spills immediately. Ensure that no combustible materials are left in the generator
compartment, or on or near the generator, as FIRE or EXPLOSION may result. Keep the area surrounding the generator clean and free from
debris.
Gaseous fl uids such as natural gas and liquid propane (LP) gas are extremely EXPLOSIVE. Install the fuel supply system according to applicable
fuel-gas codes. Before placing the home standby electric system into service, fuel system lines must be properly purged and leak tested according
to applicable code. After installation, inspect the fuel system periodically for leaks. No leakage is permitted.
1.3 GENERAL RULES
Follow all safety precautions in the Owners Manual, Installation Guidelines manual and other documents included with your equipment.
Refer to NFPA 70E for safety equipment required when working with a live system.
Never energize a new system without opening all disconnects and breakers.
Always consult your local code for additional requirements for the area in which the unit is being installed.
Improper installation can result in personal injury and damage to the generator. It may also result in the warranty being suspended
or voided. All the instructions listed below must be followed including location clearances and pipe sizes.
1.3.1 BEFORE YOU BEGIN
Contact the local inspector or City Hall to be aware of all federal, state and local codes that could impact the installation. Secure all required permits
before starting the job.
Carefully read and follow all of the procedures and safety precautions detailed in the installation guide. If any portion of the installation manual,
technical manual or other factory-supplied documents is not completely understood, contact a dealer for assistance.
Fully comply with all relevant NEC, NFPA and OSHA standards as well as all federal, state and local building and electric codes. As with any
generator, this unit must be installed in accordance with current NFPA 37 and NFPA 70 standards as well as any other federal, state, and local codes
for minimum distances from other structures.
Verify the capacity of the natural gas meter or the LP tank in regards to providing suffi cient fuel for both the generator and other household and
operating appliances.
5
1.3.2 NEC REQUIREMENTS
Local code enforcement may require that Arc Fault Circuit Interrupters (AFCIs) be incorporated into the transfer switch distribution panel. The
Transfer Switch provided with this generator has a distribution panel that will accept AFCIs (pre-wired transfer switches only).
Siemens Part No. Q115AF - 15A or Q120AF - 20A can be obtained from a local electrical wholesaler and will simply replace any of the single pole
circuit breakers supplied in the pre-wired transfer switch distribution panel.
1.3.3 STANDARDS INDEX
Applicable national, state or local laws, codes and regulations pertaining to the installation of engine-generator power systems must be strictly
complied with. Always use the current acceptable version or edition of the applicable code or standard which applies to your jurisdiction. In the
absence of pertinent local laws and standards, the following published booklets may be used as a guide (these apply to localities which recognize
NFPA and IBC):
1. National Fire Protection Association (NFPA) 70: The NATIONAL ELECTRIC CODE (NEC) *
2. NFPA 10: Standard for Portable Fire Extinguishers *
3. NFPA 30: Flammable And Combustible Liquids Code *
4. NFPA 37: Standard for Stationary Combustion Engines And Gas Turbines *
5. NFPA 54: National Fuel Gas Code *
6. NFPA 58: Standard for Storage And Handling Of Liquefi ed Petroleum Gases *
7. NFPA 68: Standard On Explosion Protection By Defl agration Venting *
8. NFPA 70E: Standard For Electrical Safety In The Workplace *
9. NFPA 99: Health Care Facilities Code *
10. NFPA 101: Life Safety Code *
11. NFPA 110: Standard for Emergency and Standby Power Systems *
12. NFPA 211: Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances *
13. NFPA 220: Standard on Types of Building Construction *
14. NFPA 5000: Building Code *
15. International Building Code **
16. Agricultural Wiring Handbook ***
17. ASAE EP-364.2 Installation and Maintenance of Farm Standby Electric Power ****
This list is not all-inclusive. Check with the Authority Having Local Jurisdiction (AHJ) for any local codes or standards which may be applicable to
your jurisdiction. The above listed standards are available from the following internet sources:
* www.nfpa.org
** www.iccsafe.org
*** www.rerc.org Rural Electricity Resource Council P.O. Box 309 Wilmington, OH 45177-0309
**** www.asabe.org American Society of Agricultural & Biological Engineers 2950 Niles Road, St. Joseph, MI 9085
The installation of this product must comply strictly with applicable codes, standards and regulations. This product can be installed by
the homeowner. However, if you are uncomfortable with the skills or tools required, have a qualified electrician or contractor perform the
installation.
PERFORM THE INSTALLATION IN ONLY 6 STEPS!
STEP 1 - Unpacking / Inspection / Familiarization
STEP 2 - Site Selection and Preparation
STEP 3 - Generator Placement
STEP 4 - Gas Requirements Connections / Fuel Conversion
STEP 5 - Electrical Connections
STEP 6 - Control Panel Activation / Start-up / Testing
6
If this generator is used to power electrical load circuits normally powered by a utility power source, it is required by code to install
a transfer switch. The transfer switch must effectively isolate the electrical system from the utility distribution system when the
generator is operating (NEC 700, 701 & 702). Failure to isolate an electrical system by such means will result in damage to the gen-
erator and also may result in injury or death to utility power workers due to backfeed of electrical energy
Having reviewed SAFETY / GENERAL INFORMATION
proceed to Step 1:
SECTION 2 - UNPACKING / INSPECTION / FAMILIARIZATION
Section 2
Unpacking / Inspection / Familiarization
NOTE: After unpacking, carefully inspect the contents for damage. It is advised to unpack and inspect the unit immediately upon delivery to
detect any damage that may have occured in transit. Any claims for shipping damage need to be filed as soon as possible with the freight
carrier. This is especially important if the generator will not be installed for a period of time.
This standby generator set is ready for installation with a factory supplied and pre-mounted base pad and has a weather protective enclosure that
is intended for outdoor installation only.
This UL listed standby generator set may be packaged with an automatic transfer switch with built-in load center. The combination transfer switch
and load center is pre-wired with a two foot and 30 foot conduit. The pre-wired switch is rated for indoor use only. Circuit breakers for emergency
circuit connections are included (if equipped).
This UL listed, 2-pole switch is rated at 50, 100 or 200 Amps, Service Rated at 250 volts maximum. The 200 Amp transfer switch is for indoor/
outdoor use (if equipped).
If any loss or damage is noted at time of delivery, have the person(s) making the delivery note all damage on the freight bill or affi x their signature
under the consignors memo of loss or damage.
If a loss or damage is noted after delivery, separate the damaged materials and contact the carrier for claim procedures.
“Concealed damage” is understood to mean damage to the contents of a package that is not evident at the time of delivery, but is discovered later.
2.1 REQUIRED TOOLS
General SAE and Metric hand tools
Wrenches
Sockets
Screwdrivers
Standard electrician’s hand tools
Drill and bits for mounting and routing conduits
4mm Allen wrench (for access to customer connections)
3/16 Allen wrench (test port on fuel regulator)
Manometer (for fuel pressure checks)
Meter capable of measuring AC/DC Voltage and Frequency
7
2.2 UNPACKING
1. With the box removed, you can see that this unit came with an automatic transfer switch. The transfer switch is an option and may not be
included.
2. Remove the wood frame and lift the transfer switch, if present, off the top of the generator.
Figure 2.1 — Crated Generator
3. Remove bolts and clamps. Exercise caution when removing the generator. Dragging it off the pallet WILL damage the base. The
generator must be lifted from the wooden pallet to remove.
LID
FRONT ACCESS
PANEL
REMOVE CRATING CLAMPS (4)
Figure 2.2 — Generator on Pallet
4. The lid will be locked. A set of keys is located behind the breaker door. Open the breaker door and cut the zip tie to remove the keys. Use the
keys to open the lid of the generator.
Figure 2.3 — Circuit Breaker Box and Keys (as shipped)
8
5. There are two locks securing the lid, one on each side. To properly open the lid, press down on the lid above the side lock and unlock the latch.
Repeat for the other side. If pressure is not applied from the top, the lid may appear stuck. NOTE: Always verify that the side locks are
unlocked before attempting to lift the lid.
6. Once the lid is open, remove the front access panel by lifting it up and out. Also remove the black panel over top of the customer connection
area.
7. Perform a visual inspection for any hidden freight damage.
Figure 2.4 — Inspecting for damage
8. Figure 2.5 illustrates the following:
Customer connection area (underneath and behind the control panel)
Fuel regulator
Battery compartment
Location of “Loose Shipped Parts”
CONNECTION AREA (UNDER CONTROL PANEL)
BATTERY COMPARTMENT
FUEL REGULATOR
LOOSE PARTS
Figure 2.5 — Customer Connection Area/Loose Parts Location
9
FUEL
CONNECTION
HOLE
20 kW MAIN AC/CONTROL WIRING CONDUIT HOLE w/CAP PLUG
8-17 kW MAIN AC/CONTROL WIRING CONDUIT HOLE w/CAP PLUG
BASE FASCIA (IF EQUIPPED)
Figure 2.6 — Generator Back View
2.3 PARTS SHIPPED LOOSE
Rubber Mounts (only for units that include fascia) Flex Fuel Line
Battery Terminal Cap Wire Shielding to separate AC from DC control wires
Main Line Circuit Breaker (MLCB) Terminal Caps Wire Nuts (for pre-wired switches only)
Main Line Circuit Breaker (MLCB) Locking Mechanism Install / Owners Manual (not shown) (CD if applicable)
Keys
BATTERY
TERMINAL
CAP
MLCB
LOCKING MECHANISM
KEYS
WIRE SHIELDING
WIRE NUTS
FLEX FUEL LINE
(tywrapped to battery cable or alternator bolt)
RUBBER MOUNTS
MLCB
TERMINAL CAPS
Figure 2.7 — Loose Parts
With the UNPACKING / INSPECTION / FAMILIARIZATION
completed, proceed to Step 2:
SECTION 3 - SITE SELECTION and PREPARATION
10
Section 3 Site Selection and Preparation
3.1 SITE SELECTION
NOTE:
The generator can be placed under decks or structures as long as all clearances are met and local building codes are followed.
18 in (457 mm)
Minimum Distance
36 in
(914 mm)
36 in
(914 mm)
36 in
(914 mm)
60 in (1524 mm) 60 in (1524 mm)
Existing Wall
No operable windows or openings in the wall permitted
within 5 ft (1.52 m) from any point of the generator.
Top of Generator
60 in (1524 mm)
Minimum
60 in (1524 mm)
Recommended
Minimum From Ends
18 in
(457 mm)
Minimum
Generator
Clearance from operable
windows, doors or any
openings in the wall.
Clearance from the ends and front of the generator
must be 36 in (914 mm). This would include shrubs,
bushes or trees. Clearance at the top should be a
minimum of 60 in (1524 mm) from any structure,
overhang or projections from the wall. The generator
should not be placed under a deck or other structure
that is closed in and would limit or constrain air flow.
NOTE:
Removable fence panels for servicing cannot be
placed less than 18 in (457 mm) in front of the
generator.
These guidelines are based upon fire
testing of the generator enclosure and
the manufacturers requirement for air
flow for proper operation. Local codes
may be different and more restrictive
than what is described here.
Figure 3.1 – Installation Guidelines
11
Install the generator set, in its protective enclosure, outdoors, where adequate cooling and ventilating air is always available (Figure 1.9). Consider
these factors:
The installation of the generator must comply strictly with NFPA 37, NFPA 54, NFPA 58 and NFPA 70 standards.
Install the unit where air inlet and outlet openings will not become obstructed by leaves, grass, snow, etc. If prevailing winds will cause blowing or
drifting, consider using a windbreak to protect the unit.
Install the generator on high ground where water levels will not rise and endanger it. It should not operate in or be subjected to standing water.
Allow suffi cient room on all sides of the generator for maintenance and servicing. This unit must be installed in accordance with current applicable
NFPA 37 and NFPA 70 standards, as well as any other federal, state and local codes for minimum distances from other structures. DO NOT install
under wooden decks or structures unless there is at least 5 ft (1.52 m) of clearance above the generator, 3 ft (.91 m) of clearance on sides and
front, and a minimum of 18 in (457 mm) of clearance at the back of the unit.
Install the unit where rain gutter down spouts, roof run-off, landscape irrigation, water sprinklers or sump pump discharge does not fl ood the unit or
spray the enclosure, including any air inlet or outlet openings.
Install the unit where services will not be affected or obstructed, including concealed, underground or covered services such as electrical, fuel,
phone, air conditioning or irrigation. This could affect Warranty Coverage.
Where strong prevailing winds blow from one direction, face the generator air inlet openings to the prevailing winds.
Install the generator as close as possible to the fuel supply to reduce the length of piping. REMEMBER THAT LAWS OR CODES MAY
REGULATE THE DISTANCE AND LOCATION.
Install the generator as close as possible to the transfer switch. REMEMBER THAT LAWS OR CODES MAY REGULATE THE DISTANCE AND
LOCATION.
The generator must be installed on a level surface. The generator must be level within a 0.5 in (13 mm) all around.
The generator is typically placed on pea gravel, crushed stone or a concrete pad. Check local codes to see what type is required. If a concrete
pad is required, all federal, state and local codes should be followed.
3.1.1 INSTALLATION GUIDELINES FOR STATIONARY AIR-COOLED 8, 11, 13, 14, 15, 16, 17 AND 20 KW GENERATORS
The National Fire Protection Association has a standard for the installation and use of stationary combustion engines. That standard is NFPA 37, its
requirements limit the spacing of an enclosed generator set from a structure or wall (Figure 1.10).
NFPA 37, Section 4.1.4, Engines Located Outdoors: Engines, and their weatherproof housings if provided, that are installed outdoors shall be
located at least 5 ft (1.52 m) from openings in walls and at least 5 ft (1.52 m) from structures having combustible walls. A minimum separation shall
not be required where either of the following conditions exist:
1. The adjacent wall of the structure has a fi re resistance rating of at least 1 hour.
2. The weatherproof enclosure is constructed of noncombustible materials and it has been demonstrated that a fi re within the enclosure will not
ignite combustible materials outside the enclosure.
Annex A — Explanatory Material
A4.1.4 (2) Means of demonstrating compliance are by means of full scale fi re test or by calculation procedures.
Because of the limited spaces that are frequently available for installation, it has become apparent that exception (2) would be benefi cial for many
residential and commercial installations. With that in mind, the manufacturer contracted with an independent testing laboratory to run full scale fi re
tests to assure that the enclosure will not ignite combustible materials outside the enclosure.
NOTE: Southwest Research Institute tesing approves 18 in (457 mm) installation minimum from structure. Southwest Research is a
nationally recognized third party testing and listing agency.
The criteria was to determine the worst case fi re scenario within the generator and to determine the ignitability of items outside the engine enclosure
at various distances. The enclosure is constructed of non-combustible materials, and the results and conclusions from the independent testing lab
indicated that any fi re within the generator enclosure would not pose any ignition risk to nearby combustibles or structures, with or without fi re service
personnel response.
12
Figure 3.2 — Southwest Research Institute Decal (located inside the generator, next to the generator’s data decal)
http://www.swri.org/4org/d01/fire/listlab/listprod/director.htm
Based on this testing and the requirements of NFPA 37, Sec 4.1.4, the guidelines for installation of the generators listed above are
changed to 18 in (457 mm) from the back side of the generator to a stationary wall or building. For adequate maintenance and airfl ow
clearance, the area above the generator should be at least 5 ft (1.52 m) with a minimum of 3 ft (.91 m) at the front and ends of the enclosure. This
would include trees, bushes and shrubs. Vegetation not in compliance with these clearance parameters could obstruct air fl ow. In addition, exhaust
fumes from the generator could inhibit plant growth. See Figure 3.1 and the installation drawing within the owners manual for details.
Generator exhaust contains DEADLY carbon monoxide gas. This dangerous gas can cause unconsciousness or death. Do not place the unit near
windows, doors, fresh air intakes (furnaces, etc.) or any openings in the building or structure, including windows and doors of an attached garage.
If the generator is not set to the OFF mode, it can crank and start as soon as the battery cables are connected. If the utility power
supply is not turned off, sparking can occur at the battery posts and cause an explosion.
3.2 SITE PREPARATION
Locate the mounting area as close as possible to the transfer switch and fuel supply.
Leave adequate room around the area for service access (check local code), and place high enough to keep rising water from reaching the
generator.
Choose an open space that will provide adequate and unobstructed airfl ow.
Place the unit so air vents won’t become clogged with leaves, grass, snow or debris. Make sure exhaust fumes will not enter the building through
eaves, windows, ventilation fans or other air intakes (see the “Site Selection” section).
Select the type of base, gravel or concrete, as desired or as required by local laws or codes. Verify your local requirements before selecting.
3.2.1 CRUSHED STONE OR GRAVEL
Dig a rectangular area approximately 5 in (127 mm) deep and about 6 in (152 mm) longer and wider than the footprint of the generator. Cover with
polyurethane fi lm, if desired, and fi ll with pea gravel or crushed stone. Compact and level the stone. A concrete pad can be poured if desired or
required. The pad should be 4-5 in (102-127 mm) thick and extend 6 in (152 mm) beyond the outside of the generator in all directions.
NOTE: If a concrete pad is required, follow all applicable Federal, State or local codes.
13
Figure 3.3 — Compacted Gravel Site
Figure 3.4 — Concrete Pad Site
After completing your SITE SELECTION and PREPARATION,
time for Step 3:
SECTION 4 - GENERATOR PLACEMENT
Section 4
Generator Placement
4.1 GENERATOR PLACEMENT
With the Site Selection and Preparation performed, proceed with placement and installation of the generator itself.
All of the air-cooled generators come with a composite pad. The composite pad elevates the generator and helps prevent water from pooling around
the bottom of the generator (Figure 3.1). You can place the generator with a composite pad on 4 in (102 mm) of pea gravel that is compacted or on a
concrete pad. Check local codes to see what type of site base is required. If a concrete pad is required, all federal, state and local codes should be
followed. Place the generator on its mounting pad and position correctly as per the dimensional information given in Section 2.
NOTE: Generator must be level within 0.5 in (13 mm).
14
Figure 4.1 — Composite pad
When mounting the generator to concrete, there are four mounting holes available for securing the generator, if codes require (two holes inside the
front of the generator compartment and two holes in the back). See Figure 3.2.
Figure 4.2 — Mounting Hole Location
3.2.2 FASCIA INSTALLATION (IF APPLICABLE)
Locate the four (4) threaded black rubber bumpers located in the Owners manual bag.
Remove the four (4) bumpers from the bag and screw them into threaded holes located inside the end pieces of the fascia (two each) opposite
one another (A).
Once the bumpers are installed, snap one of the end pieces into one of the front / rear pieces of fascia. Repeat this action with the other two
remaining pieces of fascia. NOTE: Do not assemble all four pieces together at this point (B).
Place both assemblies at the base of the generator and fi t the rubber bumpers into the lifting holes in the generator base (C).
Once aligned, snap together the two remaining connection points.
15
A
B
C
Figure 3.5 — Fascia Installation
After completing GENERATOR PLACEMENT, proceed to
Step 4:
SECTION 5 — FUEL CONVERSION / GAS REQUIREMENTS /
CONNECTIONS
Section 5
Fuel Conversion / Gas Requirements /
Connections
5.1 FUEL CONVERSION
The generator was confi gured for natural gas operation at the factory. Press and turn fuel knob 180° to switch over to LP Vapor.
NOTE: The orange fuel conversion knob is located on the top of the fuel mixer on the V-twin engine and under the fuel mixer on the single
cylinder engine.
Press and turn the fuel knob towards the marked fuel source arrow until it stops. Fuel knob will rotate 180° and slide into the mixer body when
converting to LP.
16
FUEL KNOB LOCATIONS SHOWN FROM GENERATOR AIR BOX SIDE VIEW
FUEL KNOB
FUEL KNOB
11-20 kW GENERATORS
8 kW GENERATOR
ORANGE FUEL
CONVERSION KNOB
Figure 5.1 — Fuel Conversion Knob Location for Single and Twin Cylinder Generators
5.2 FUEL REQUIREMENTS AND RECOMMENDATIONS
With LP gas, use only the vapor withdrawal system. This type of system uses the vapors formed above the liquid fuel in the storage tank.
The engine has been fi tted with a fuel carburetion system that meets the specifi cations of the 1997 California Air Resources Board for tamper-proof
dual fuel systems. The unit will run on natural gas or LP gas, but it has been factory set to run on natural gas. Should the primary fuel need to be
changed to LP gas, the fuel system needs to be reconfi gured. See the Fuel Conversion section for instructions on converting the fuel system.
Recommended fuels should have a Btu content of at least 1,000 Btus per cubic foot (37.26 megajoules per cubic meter) for natural gas; or at least
2,500 Btus per cubic foot (93.15 megajoules per cubic meter) for LP gas. Ask the fuel supplier for the Btu content of the fuel.
Required fuel pressure for natural gas is 3.5-7” water column (7-13 mm mercury). Required fuel pressure for for liquid propane vapor is
10-12” water column (19-22 mm mercury). The primary regulator for the propane supply is NOT INCLUDED with the generator.
NOTE: All pipe sizing, construction and layout must comply with NFPA 54 for natural gas applications and NFPA 58 for liquid propane
applications. Once the generator is installed, verify that the fuel pressure NEVER drops below it’s required fuel pressure rating. For fur-
ther information regarding NFPA requirements refer to their website at www.nfpa.org.
Prior to installation of the generator, the installer should consult local fuel suppliers or the fi re marshal to check codes and regulations for proper
installation. Local codes will mandate correct routing of gaseous fuel line piping around gardens, shrubs and other landscaping to prevent any
damage.
Special considerations should be given when installing the unit where local conditions include fl ooding, tornados, hurricanes, earthquakes and
unstable ground for the fl exibility and strength of piping and their connections.
Use an approved pipe sealant or joint compound on all threaded fi ttings.
All installed gaseous fuel piping must be purged and leak tested prior to initial start-up in accordance with local codes, standards and regulations.
17
5.3 FUEL CONSUMPTION
NOTE: Required fuel pressure for natural gas is 3.5-7 in water column (7-13 mm mercury). The required fuel pressure for LP Vapor is 10-12
in water column (19-22 mm mercury).
These are approximate values, use the appropriate spec sheet or owners manual for specifi c values.
Unit
Nat. Gas LP Vapor
1/2 Load Full Load 1/2 Load Full Load
7 / 8 kW 78 / 2.21 121 / 3.43 0.87 / 3.29 1.42 / 5.37
10 / 11 kW 124 / 3.51 195 / 5.52 1.18 / 4.45 1.92 / 7.28
13 / 13 kW 157 / 4.45 255 / 7.22 1.64 / 6.2 2.95 / 11.15
14 / 14 kW 177 / 5.01 279 / 7.9 1.85 / 6.99 3.07 / 11.61
15 / 15 kW 185 / 5.24 296 / 8.38 1.83 / 6.91 2.86 / 10.82
16 / 16 kW 193 / 5.47 312 / 8.83 1.9 / 7.2 3.19 / 12.07
16 / 17 kW 193 / 5.47 312 / 8.83 1.99 / 7.53 3.57 / 13.53
18 / 20 kW 205 / 5.8 308 / 8.72 2.08 / 7.87 3.85 / 14.57
* Natural gas is in cubic feet per hour / cubic meters per hour.
** LP is in gallons per hour / liters per hour.
*** Values given are approximate.
Verify that gas meter is capable of providing enough fuel fl ow to include household appliances and all other loads.
Gaseous fuels such as natural gas and liquid propane (LP) gas are highly explosive. Even the slightest spark can ignite such fuels
and cause an explosion. No leakage of fuel is permitted. Natural gas, which is lighter than air, tends to collect in high areas. LP gas
is heavier than air and tends to settle in low areas.
NOTE: A minimum of one approved full flow manual shut-off valve must be installed in the gaseous fuel supply line. The valve must be
easily accessible. Local codes determine the proper location.
NOTE: THE GAS SUPPLY AND PIPE MUST BE SIZED AT 100% LOAD BTU / MEGAJOULE RATING.
5.4 FUEL LINE SIZING
First, determine what size pipe is required. Refer to NFPA 54 for NG or NFPA 58 for LP for further information.
Always refer to the owners manual for the proper BTU / megajoule and required gas pressures. To calculate BTU or Megajoules:
Natural Gas: BTU=Cubic feet / hour x 1000
Megajoules=Cubic meters / hour x 37.26
Liquid Propane Vapor: BTU=Cubic feet / hour x 2500
Megajoules=Cubic meters / hour x 93.15
Start by measuring the distance from the generator to the gas source. The generator should be plumbed directly from the source, not off the end
of an existing system.
When measuring the pipe length, add 2.5 ft (.76 m) for every angle or bend in the pipe and add that to the overall pipe distance.
18
5.4.1 NATURAL GAS PIPE SIZING
To properly use this chart, fi nd the kW rating of the generator in the left column, and trace to the right. The number to the right is the maximum length
(measured in feet / meters) allowed for the pipe sizes on top. The pipe sizes are measured by inside diameter (ID) to include any fi ttings, valves
(must be full fl ow), elbows, tees or angles. Add 2.5 ft (.76 m) per any bend, tee or angle in the pipe to the overall distance.
Pipe Size (in. / mm) Pipe Size (in. / mm)
kW .75 / 19 1 / 25 1.25 / 32 1.5 / 38 2 / 51 kW .75 / 19 1 / 25 1.25 / 32 1.5 / 38
7-8 55 / 16.76 200 / 60.96 820 / 249.94 7-8 20 / 6.1 60 / 18.29 175 / 53.34
11 20 / 6.1 85 / 25.91 370 / 112.78 800 / 243.84 11 30 / 9.14 125 / 38.1 200 / 60.96
13-14 10 / 3.05 50 / 15.24 245 / 74.68 545 / 166.12 13-14 20 / 6.1 80 / 24.38 175 / 53.34
16-17 40 / 12.19 190 / 57.91 425 / 129.54 16-20 10 / 3.05 60 / 18.29 125 / 38.1
20 20 / 6.1 130 / 39.62 305 / 92.96 945 / 288.04
For pressures below 5" of water column (9mm mercury) down to 3.5” of water
column (7mm mercury)
For 5-7” of water column (9-13mm mercury)
5.4.2 LP VAPOR PIPE SIZING
To properly use this chart, fi nd the kW rating of the generator in the left column, and trace to the right. The number to the right is the maximum length
(measured in feet / meters) allowed for the pipe sizes on top. The pipe sizes are measured by inside diameter (ID) to include any fi ttings, valves
(must be full fl ow), elbows, tees or angles. Add 2.5ft. (.76m) per any bend, tee or angle in the pipe to the overall distance.
NOTE: Pipe sizes are using a second stage regulator.
NOTE: The minimum LP tank size is 250 gallons (946 L), unless unit calculations dictate use of a larger tank. Vertical tanks, which
are measured in pounds (or kilograms), will not usually meet the minimum tank size requirement. A 1050 lb (476 kg) vertical tank size
minimum is required.
Pipe Size (in. / mm)
kW .75 / 19 1 / 25 1.25 / 32
7-8 165 / 50.29 570 / 173.74
11 70 / 21.33 255 / 77.72 1000 / 304.8
13-14 45 / 13.72 170 / 51.82 690 / 210.31
16-17 25 / 7.62 130 / 39.62 540 / 164.59
20 15 / 4.57 115 / 35.05 480 / 146.3
5.4.3 GAS INSTALLATION SUMMARY
GAS PIPE SIZING IS ONE OF THE MOST COMMONLY MADE MISTAKES. A PROPERLY SIZED GAS PIPE IS CRITI-
CAL TO THE PROPER OPERATION OF THE GENERATOR. THE GENERATOR INLET SIZE HAS NO BEARING ON
THE PROPER GAS PIPE SIZE.
NOTE: THE GAS SUPPLY AND PIPE MUST BE SIZED AT 100% LOAD BTU / MEGAJOULE RATING.
5.5 INSTALLING & CONNECTING GAS LINES
1. Both natural gas and LP Vapor are highly volatile substances, so strict adherence to all safety procedures, codes, standards and
regulations is essential.
Gas line connections should be made by a certified plumber familiar with local codes. Always use AGA-approved gas pipe and a quality
pipe sealant or joint compound.
Verify the capacity of the natural gas meter or the LP tank in regards to providing sufficient fuel for both the generator and other operating
appliances.
Fuel Regulator installed per laws or regulator manufacturers specifi cations
AGA approved gas pipe
Flexible fuel line
Do not bend!!!
Do not attach directly to generator
Check all connections for leaks
Sediment trap near generator (if applicable or required by code)
Full fl ow rated shut-off near generator per local jurisdiction or code
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Generac 17 kW 0062480 Manuel utilisateur

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Manuel utilisateur