Kohler 14RESAL, 14RESA, 20RESCL, 20RESC, 20RESA Installation Manual

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Page 1

Installation

Residential/Commercial Generator Sets

Models:

14/20RESA

14/20RESAL

20RESC

20RESCL

Controllers:

RDC2

DC2

TP-6803 6/15l

Page 2

California Proposition 65

WARNING

Engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Kohler strongly recommends

that only factory-authorized

distributors or dealers install

and service the generator.

Product Identification Information

Generator Set Identification Numbers

Record the product identification numbers from the generator set nameplate(s).

Model Designation

Specification Number

Serial Number

Accessory Number Accessory Description

Engine Identification

Record the product identification information from the engine nameplate.

Manufacturer

Model Designation

Serial Number

Controller Identification

Record the controller description from the generator set operation manual, spec sheet, or sales invoice.

Controller Description

Page 3

Table of Contents

Product Identification Information 2.............................................................

Safety Precautions and Instructions 5.........................................................

Introduction 9...............................................................................

Startup and Registration 9.....................................................

Service Assistance 10.........................................................................

Section 1 Installation 11......................................................................

1.1 Introduction 11...........................................................

1.2 Lifting 11................................................................

1.3 Generator Set Inspection 12...............................................

1.4 Location and Mounting 12.................................................

1.4.1 Mounting Area 12................................................

1.4.2 Concrete Mounting Pads 12.......................................

1.4.3 Exhaust Requirements 12.........................................

1.5 Dimension Drawings 13...................................................

1.6 Access the Air Intake Area 13..............................................

1.7 Fuel Requirements 14.....................................................

1.7.1 Fuel Supply 14...................................................

1.7.2 Fuel Pipe Size 15.................................................

1.7.3 Connecting the Fuel Supply 15.....................................

1.8 Fuel Conversion 16.......................................................

1.8.1 Fuel Conversion, 14RESA/RESAL Equipped with Fuel Block 16........

1.8.2 Fuel Conversion, 14RESA/RESAL Equipped with Fuel Orifice Fittings 18

1.8.3 Fuel Conversion, 20RESA/RESAL/RESC/RESCL 20..................

1.8.4 Regulator Vent Hose 20...........................................

1.9 Electrical Connections 21..................................................

1.9.1 Grounding 22....................................................

1.9.2 Electrical Lead Entry 22...........................................

1.9.3 Field-Connection Terminal Block 22.................................

1.9.4 AC Power Supply 24..............................................

1.10 ATS and Accessory Communication Connections 25..........................

1.10.1 Transfer Switch Connection 25.....................................

1.10.2 Communication Cable Specifications 26.............................

1.10.3 System Connections with Accessory Modules 26.....................

1.11 Battery 31...............................................................

1.12 Prestart Installation Check 33..............................................

1.13 Set the Exerciser 34......................................................

1.13.1 RDC2 Controller 34...............................................

1.13.2 DC2 Controller 34................................................

1.13.3 Loaded Exercise 34...............................................

Section 2 Accessories 35.....................................................................

2.1 Introduction 35...........................................................

2.2 Programmable Interface Module (PIM) 35...................................

2.3 Load Management Devices 36.............................................

2.3.1 Power Relay Module 36...........................................

2.4 Regulator Heater 37......................................................

2.5 Carburetor Heater 39.....................................................

2.6 Battery Heater 41.........................................................

2.7 Emergency Stop Button 41................................................

2.8 OnCue Plus Generator Management System 42..............................

2.9 PowerSync Automatic Paralleling Module (APM) 43...........................

TP-6803 6/15 Table of Contents 3

Page 4

Table of Contents, continued

Section 3 Drawings and Diagrams 45..........................................................

Appendix A Abbreviations 67................................................................

Appendix B Electrical Lead Entry Template 69.................................................

TP-6803 6/15Table of Contents

Page 5

Safety Precautions and Instructions

IMPORTANTSAFETY INSTRUCTIONS.

Electromechanical equipment, including generator sets, transfer switches, switchgear, and accessories, can cause bodily harm and pose life-threatening danger when improperly installed, operated, or maintained. To prevent accidents be aware of potential dangers and act safely. Read and follow all safety precautions and instructions. SAVE THESE INSTRUCTIONS.

This manual has several types of safety precautions and instructions: Danger, Warning, Caution, and Notice.

DANGER

Danger indicates the presence of a hazard that will cause severe

personal injury, death,orsubstantial property damage.

WARNING

Warning indicates the presence of a hazard that can cause severe

personal injury, death, or substantial property damage.

CAUTION

Caution indicates the presence of a hazard that will or can cause minor personal injury or property damage.

NOTICE

Notice communicates installation, operation, or maintenance information that is safety related but not hazard related.

Safety decals affixed to the equipment in prominent places alert the operator or service technician to potential hazards and explain how to act safely. The decals are shown throughout this publication to improve operator recognition. Replace missing or damaged decals.

Accidental Starting

WARNING

Accidental starting. Can cause severe injury or death.

Disconnect the battery cables before working on the generator set. Remove the negative (--) lead first when disconnecting the battery. Reconnect the negative (--) lead last when reconnecting the battery.

Disabling the generator set. Accidental starting can cause severe injury or death. Before

working on the generator set or equipment connected to the set, disable the generator set as follows: (1) Press the generator set off/reset button to shut down the generator set. (2) Disconnect the power to the battery charger, if equipped. (3) Remove the battery cables, negative (--) lead first. Reconnect the negative (--) lead last when reconnecting the battery. Follow these precautions to prevent the starting of the generator set by the remote start/stop switch.

Battery

WARNING

Sulfuric acid in batteries. Can cause severe injury or death.

Wear protective goggles and clothing. Battery acid may cause blindness and burn skin.

WARNING

Explosion. Can cause severe injury or death. Relays in the battery charger cause arcs or sparks.

Locate the battery in a well-ventilated area. Isolate the battery charger from explosive fumes.

Battery electrolyte is a diluted sulfuric acid. Battery acid can cause severe injury or death. Battery acid

can cause blindness and burn skin. Always wear splashproof safety goggles, rubber gloves, and boots when servicing the battery. Do not open a sealed battery or mutilate the battery case. If battery acid splashes in the eyes or on the skin, immediately flush the affected area for 15 minutes with large quantities of clean water. Seek immediate medical aid in the case of eye contact. Never add acid to a battery after placing the battery in service, as this may result in hazardous spattering of battery acid.

Battery acid cleanup. Battery acid can cause severe injury or death.

Battery acid is electrically conductive and corrosive. Add 500 g (1 lb.) of bicarbonate of soda (baking soda) to a container with 4 L (1 gal.) of water and mix the neutralizing solution. Pour the neutralizing solution on the spilled battery acid and continue to add the neutralizing solution to the spilled battery acid until all evidence of a chemical reaction (foaming) has ceased. Flush the resulting liquid with water and dry the area.

TP-6803 6/15 5Safety Precautions and Instructions

Page 6

Battery gases. Explosion can cause severe injury or death. Battery gases

can cause an explosion. Do not smoke or permit flames or sparks to occur near a battery at any time, particularly when it is charging. Do not dispose of a battery in a fire. To prevent burns and sparks that could cause an explosion, avoid touching the battery terminals with tools or other metal objects. Remove all jewelry before servicing the equipment. Discharge static electricity from your body before touching batteries by first touching a grounded metal surface away from the battery. To avoid sparks, do not disturb the battery charger connections while the battery is charging. Always turn the battery charger off before disconnecting the battery connections. Ventilate the compartments containing batteries to prevent accumulation of explosive gases.

Battery short circuits. Explosion can cause severe injury or death.

Short circuits can cause bodily injury and/or equipment damage. Disconnect the battery before generator set installation or maintenance. Remove all jewelry before servicing the equipment. Use tools with insulated handles. Remove the negative (--) lead first when disconnecting the battery. Reconnect the negative (--) lead last when reconnecting the battery. Never connect the negative (--) battery cable to the positive (+) connection terminal of the starter solenoid. Do not test the battery condition by shorting the terminals together.

Engine Backfire/Flash Fire

WARNING

Risk of fire. Can cause severe injury or death.

Servicing the air cleaner. A sudden backfire can cause severe injury or death. Do not operate the generator

set with the air cleaner removed.

Servicing the fuel system. A flash fire can cause severe injury or death.

Do not smoke or permit flames or sparks near the carburetor, fuel line, fuel filter, fuel pump, or other potential sources of spilled fuels or fuel vapors. Catch fuels in an approved container when removing the fuel line or carburetor.

Combustible materials. A fire can cause severe injury or death.

Generator set engine fuels and fuel vapors are flammable and explosive. Handle these materials carefully to minimize the risk of fire or explosion. Equip the compartment or nearby area with a fully charged fire extinguisher. Select a fire extinguisher rated ABC or BC for electrical fires or as recommended by the local fire code or an authorized agency. Train all personnel on fire extinguisher operation and fire prevention procedures.

Exhaust System

WARNING

Carbon monoxide. Can cause severe nausea, fainting, or death.

The exhaust system must be leakproof and routinely inspected.

Generator set operation. Carbon monoxide can cause severe nausea, fainting, or death. Carbon monoxide

is an odorless, colorless, tasteless, nonirritating gas that can cause death if inhaled for even a short time. Avoid breathing exhaust fumes when working on or near the generator set. Never operate the generator set inside a building. Never operate the generator set where exhaust gas could seep inside or be drawn into a potentially occupied building through windows, air intake vents, or other openings.

Carbon monoxide detectors. Carbon monoxide can cause severe nausea, fainting, or death. Install

carbon monoxide detectors on each level of any building adjacent to the generator set. Locate the detectors to adequately warn the building’s occupants of the presence of carbon monoxide. Keep the detectors operational at all times. Periodically test and replace the carbon monoxide detectors according to the manufacturer’s instructions.

Carbon monoxide symptoms. Carbon monoxide can cause severe nausea, fainting, or death. Carbon

monoxide is a poisonous gas present in exhaust gases. Carbon monoxide is an odorless, colorless, tasteless, nonirritating gas that can cause death if inhaled for even a short time. Carbon monoxide poisoning symptoms include but are not limited to the following:

D Light-headedness, dizziness D Physical fatigue, weakness in

joints and muscles

D Sleepiness, mental fatigue,

inability to concentrate or speak clearly, blurred vision

D Stomachache, vomiting, nausea

If experiencing any of these symptoms and carbon monoxide poisoning is possible, seek fresh air immediately and remain active. Do not sit, lie down, or fall asleep. Alert others to the possibility of carbon monoxide poisoning. Seek medical attention if the condition of affected persons does not improve within minutes of breathing fresh air.

Do not smoke or permit flames or sparks near fuels or the fuel system.

TP-6803 6/156 Safety Precautions and Instructions

Page 7

Fuel System

WARNING

Natural Gas—Adequate ventilation is

mandatory. Because natural gas rises, install natural gas detectors high in a room. Inspect the detectors per the manufacturer’s instructions.

WARNING

Explosive fuel vapors. Can cause severe injury or death.

Use extreme care when handling, storing, and using fuels.

The fuel system. Explosive fuel vapors can cause severe injury or death. Vaporized fuels are highly

explosive. Use extreme care when handling and storing fuels. Store fuels in a well-ventilated area away from spark-producing equipment and out of the reach of children. Never add fuel to the tank while the engine is running because spilled fuel may ignite on contact with hot parts or from sparks. Do not smoke or permit flames or sparks to occur near sources of spilled fuel or fuel vapors. Keep the fuel lines and connections tight and in good condition. Do not replace flexible fuel lines with rigid lines. Use flexible sections to avoid fuel line breakage caused by vibration. Do not operatethe generator set in the presence of fuel leaks, fuel accumulation, or sparks. Repair fuel systems before resuming generator set operation.

Gas fuel leaks. Explosive fuel vapors can cause severe injury or death. Fuel leakage can cause an

explosion. Check the LPG vapor or natural gas fuel system for leakage by using a soap and water solution with the fuel system test pressurized to 6--8 ounces per square inch (10--14 inches water column). Do not use a soap solution containing either ammonia or chlorine because both prevent bubble formation. A successful test depends on the ability of the solution to bubble.

Explosive fuel vapors can cause severe injury or death. Ta ke

additional precautions when using the following fuels:

Propane (LPG)—Adequate ventilation is mandatory. Because propane is heavier than air, install propane gas detectors low in a room. Inspect the detectors per the manufacturer’s instructions.

Hazardous Noise

CAUTION

Hazardous noise. Can cause hearing loss.

Never operate the generator set without a muffler or with a faulty exhaust system.

Engine noise. Hazardous noise can cause hearing loss. Generator sets

not equipped with sound enclosures can produce noise levels greater than 105 dBA. Prolonged exposure to noise levels greater than 85 dBA can cause permanent hearing loss. Wear hearing protection when near an operating generator set.

Hazardous Voltage/ Moving Parts

DANGER

Hazardous voltage. Will cause severe injury or death.

This equipment must be installed and serviced by qualified electrical personnel.

WARNING

Hazardous voltage. Can cause severe injury or death.

Operate the generator set only when all guards and electrical enclosures areinplace.

Moving parts.

Hazardous voltage. Backfeed to the utility system can cause property damage, severe injury, or death.

If the generator set is used for standby power, install an automatic transfer switch to prevent inadvertent interconnection of standby and normal sources of supply.

CAUTION

Welding the generator set. Can cause severe electrical equipment damage.

Never weld components of the generator set without first disconnecting the battery, controller wiring harness, and engine electronic control module (ECM).

Grounding electrical equipment. Hazardous voltage can cause severe injury or death. Electrocution

is possible whenever electricity is present. Ensure you comply with all applicable codes and standards. Electrically ground the generator set, transfer switch, and related equipment and electrical circuits. Turn off the main circuit breakers of all power sources before servicing the equipment. Never contact electrical leads or appliances when standing in water or on wet ground because these conditions increase the risk of electrocution.

Welding on the generator set. Can cause severe electrical equipment damage. Before welding on the

generator set perform the following steps: (1) Remove the battery cables, negative (--) lead first. (2) Disconnect all engine electronic control module (ECM) connectors. (3) Disconnect all generator set controller and voltage regulator circuit board connectors. (4) Disconnect the engine batterycharging alternator connections. (5) Attach the weld ground connection close to the weld location.

TP-6803 6/15 7Safety Precautions and Instructions

Page 8

Connecting the battery and the battery charger. Hazardous voltage can cause severe injury or death.

Reconnect the battery correctly, positive to positive and negative to negative, to avoid electrical shock and damage to the battery charger and battery(ies). Have a qualified electrician install the battery(ies).

Short circuits. Hazardous voltage/current can cause severe injury or death. Short circuits can

cause bodily injury and/or equipment damage. Do not contact electrical connections with tools or jewelry while making adjustments or repairs. Remove all jewelry before servicing the equipment.

Electrical backfeed to the utility. Hazardous backfeed voltage can cause severe injury or death. Install

a transfer switch in standby power installations to prevent the connection of standby and other sources of power. Electrical backfeed into a utility electrical system can cause severe injury or death to utility personnel working on power lines.

Hot Parts

WARNING

Hot engine and exhaust system. Can cause severe injury or death.

Do not work on the generator set until it cools.

Servicing the exhaust system. Hot parts can cause severe injury or death. Do not touch hot engine parts.

The engine and exhaust system components become extremely hot during operation.

Servicing the engine heater. Hot parts can cause minor personal injury or property damage. Install the

heater before connecting it to power. Operating the heater before installation can cause burns and component damage. Disconnect power to the heater and allow it to cool before servicing the heater or nearby parts.

Notice

NOTICE

Canadian installations only.For

standby service connect the output of the generator set to a suitably rated transfer switch in accordance with Canadian Electrical Code, Part 1.

Heavy Equipment

WARNING

Unbalanced weight. Improper lifting can cause severe injury or death and equipment damage.

Do not use lifting eyes. Lift the generator set using lifting bars inserted through the lifting holes on the skid.

TP-6803 6/158 Safety Precautions and Instructions

Page 9

Introduction

This manual provides installation instructions for Residential/Commercial Model 14/20RESA/RESAL and 20RESC/RESCL generator sets. See Figure 1. Refer to TP-6804, Operation Manual, for generator set operation and maintenance instructions.

The generator set is approved for use in stationary applications in locations served by a reliable utility power source.

Kohler strongly recommends that only factoryauthorized distributors or dealers install and service the generator.

Have a Kohlerr authorized distributor/dealer install the generator set outdoors according to the instructions in this manual. The generator set installation must comply with the National Electrical Code (NEC) and local code requirements. Do not install this generator set indoors.

Information in this publication represents data available at the time of print. Kohler Co. reserves the right to change this publication and the products represented without notice and without any obligation or liability whatsoever.

Read this manual and carefully follow a ll procedures and safety precautions to ensure proper equipment operation and to avoid bodily injury. Read and followthe Safety Precautions and Instructions section at the beginning of this manual.

List of Related Literature

Figure 2 identifies related literature available for the generator sets covered in this manual. Only trained and qualified personnel should install or service the generator set.

Literature Type Part Number

Specification Sheet, 20RESA G4-209

Specification Sheet, 20RESAL G4-210

Specification Sheet, 14RESA G4-245

Specification Sheet, 14RESAL G4-249

Specification Sheet, 20RESC G4-246

Specification Sheet, 20RESCL G4-250

Operation Manual, Generator Set TP-6804

Operation/Installation Manual, Model RXT Automatic Transfer Switch

Operation/Installation Manual, Model RDT Transfer Switch

Operation Manual, OnCue Plus TP-6928

Installation Instructions, Programmable Interface Module (PIM)

Installation Instructions, Automatic Paralleling Module (APM)

Installation Instructions, Load Shed Kit

Installation Instructions, Concrete Mounting Pads

Installation Instructions, Power Relay Modules

Figure 2 Related Literature

TP-6807

TP-6345

TT-1584

TT-1596

TT--1609

TT--1619

TT--1646

Figure 1 Generator Set

TP-6803 6/15 9

zaa28533

Startup and Registration

When the generator set is installed, complete the startup and installation checklists supplied with the startup notification form. Complete and sign the startup notification form and register the unit using the Kohler online Warranty Processing System.

Page 10

Service Assistance

For professional advice on generator set power requirements andconscientious service, pleasecontact your nearest Kohler distributor or dealer.

D Consult the Yellow Pages under the heading

Generators—Electric.

D Visit the Kohler Power Systems website at

KOHLERPower.com.

D Look at the labels and decals on your Kohler product

or review the appropriate literature or documents included with the product.

D Call toll free in the US and Canada 1-800-544-2444.

D Outside the US and Canada, callthe nearest regional

office.

Headquarters Europe, Middle East, Africa (EMEA)

Kohler Power Systems Netherlands B.V. Kristallaan 1 4761 ZC Zevenbergen The Netherlands Phone: (31) 168 331630 Fax: (31) 168 331631

Asia Pacific

Power Systems Asia Pacific Regional Office Singapore, Republic of Singapore Phone: (65) 6264-6422 Fax: (65) 6264-6455

China

North China Regional Office, Beijing Phone: (86) 10 6518 7950

(86) 10 6518 7951 (86) 10 6518 7952

Fax: (86) 10 6518 7955

East China Regional Office, Shanghai Phone: (86) 21 6288 0500 Fax: (86) 21 6288 0550

India, Bangladesh, Sri Lanka

India Regional Office Bangalore, India Phone: (91) 80 3366208

(91) 80 3366231

Fax: (91) 80 3315972

Japan, Korea

North Asia Regional Office Tokyo, Japan Phone: (813) 3440-4515 Fax: (813) 3440-2727

Latin America

Latin America Regional Office Lakeland, Florida, USA Phone: (863) 619-7568 Fax: (863) 701-7131

TP-6803 6/1510

Page 11

Section 1 Installation

1.1 Introduction

DANGER

Hazardous voltage. Will cause severe injury or death.

This equipment must be installed and serviced by qualified electrical personnel.

WARNING

Carbon monoxide. Can cause severe nausea, fainting, or death.

The exhaust system must be leakproof and routinely inspected.

Note: DO NOT install these generator sets inside a

building.

Note: Install carbon monoxide (CO) detector(s) on

each level of any building adjacent to a generator set. Locate the detectors to adequately warn the building’s occupants of the presence of carbon monoxide.

Obtain a building permit and contact your local utility companies to mark the locations of underground pipes and cables.

Read and follow the safety precautions in this manual and observe the decals on the equipment. Refer to the diagrams and drawings in this manual for dimensions and electrical connections during the installation procedure. Read the entire installation procedure and obtain the accessories and tools needed before beginning installation. Perform the steps in the order shown.

To install optional accessories, follow the instructions provided with each kit.

1.2 Lifting

Generator set operation. Carbon monoxide can cause severe nausea, fainting, or death. Carbon monoxide is an

odorless, colorless, tasteless, nonirritating gas that can cause death if inhaled for even a short time. Avoid breathing exhaust fumes when working on or near the generator set. Never operate the generator set inside a building. Never operate the generator set where exhaust gas could seep inside or be drawn into a potentially occupied buildingthrough windows, air intake vents, or other openings.

Carbon monoxide detectors. Carbon monoxide can cause severe nausea, fainting, or death. Install carbon

monoxide detectors on each level of any building adjacent to the generator set. Locate the detectors to adequately warn the building’s occupants of the presence of carbon monoxide. Keep the detectors operational at all times. Periodically test and replace the carbon monoxide detectors according to the manufacturer’s instructions.

Have thegenerator set installed by an authorized Kohler distributor/dealer or authorized representative. For all locations, ensure that the installation complies with applicable national and local codes. In the United States, the installation must comply with the National Electrical Code (NEC) and local codes. For Canadian installations, refer to the Canadian Electrical Code (CEC).

WARNING

Unbalanced weight. Improper lifting can cause severe injury or death and equipment damage.

Do not use lifting eyes. Lift the generator set using lifting bars inserted through the lifting holes on the skid.

Model Weight, kg (lb.)

14RESA/RESAL

20RESA/RESAL

20RESC/RESCL

Figure 1-1 Approximate Weights

191 (420)

243 (535)

The generator set must be installed outdoors. The exhaust systems on enclosed units are designed for outdoor installation only.

TP-6803 6/15 11Section 1 Installation

Page 12

Approximate generator set weights are shown in Figure 1-1. Use lifting bars inserted through the holes in the skid to lift the unit. See the dimension drawings in Section 3 for lifting hole locations.

1.3 Generator Set Inspection

Complete a thorough inspection of the generator set. Check for the following:

1. Inspect the generator set for loose or damaged parts or wires. Repair or tighten any loose parts before installation.

2. Check the engine oil. Fill, if necessary, with the recommended viscosity and grade of oil. Use synthetic oil, API (American Petroleum Institute) Service Class SG or higher. See TP-6804, Operation Manual, for additional information.

1.4 Location and Mounting

Install the generator set outdoors near the incoming gas service. The generator set location must allow easy access for maintenance and service. The required distance froma structure is dependent onstate and local codes. See the dimension drawing in Section 3 for the minimum clearance from structures and non-combustible materials.

Locate the generator set so that the hot exhaust does not blow on plants or other combustible materials. No plants, shrubs, or other combustible materials are allowed within 1.2 m (4 ft.) of the exhaust end of the generator set.

Do not install the generator set where exhaust gas could accumulate and seep inside or be drawn into a potentially occupied building. Furnace and other similar intakes must be at least 3 m (10 ft.) from the exhaust end of the generator set.

Notice

DO NOT locate the generator set near patios,

decks, play areas, o r animal shelters. Keep items such as lawn furniture, toys, sports equipment, and all combustible materials away from the generator set exhaust outlet.

Remind family members, children, and visitors to use caution near the generator set. Generator sets connected to automatic transfer switches start automatically during exercise periods and power outages. Some generator set components become hot when the generator set is running and remain hot for a time after the generator set shuts down.

1.4.1 Mounting Area

The generator set is shipped on an engineered composite mounting pad. Prepare a flat, level mounting area covered with a weed barrier and gravel or a concrete mounting pad. Set the composite mounting pad directly on the gravel or concrete.

Do not install the composite mounting pad directly on grass, wood, or other combustible materials. Clear all combustible materials, including plants and shrubs, building materials, and lawn furniture, from an area at least 1.2 m (4 ft.) beyond the exhaust end of the generator set. See the dimension drawing in Section 3.

1.4.2 Concrete Mounting Pads

Kohler Co. offers optional concrete mounting pads that are custom-designed for Model 14RESA/RESAL, 20RESA/RESAL, and 20RESC/RESCL generator sets. Three-inch and four-inch thick pads are available. Four-inch pads are recommended for storm-prone areas. See TT-1619 for instructions to install the mounting pad, if necessary.

1.4.3 Exhaust Requirements

WARNING

Hot engine and exhaust system. Can cause severe injury or death.

Do not work on the generator set until it cools.

TP-6803 6/1512 Section 1 Installation

Page 13

Figure 1-2 gives the exhaust temperature at rated load. The engine exhaust mixes with the generator set cooling air at the exhaust end of the enclosure. Mount the generator set so that the hot exhaust does not blow on plants or other combustible materials. Maintain the clearances shown in the dimension drawing in Section 3.

Temperature,

Exhaust

Exhaust gas exiting the enclosure at rated kW, _C(_F)

_C(_F)

260 (500)

Figure 1-2 Exhaust Flow and Temperature

1.6 Access the Air Intake Area

The battery, fuel system, and electrical connections are located in theair intake area. Raise the roof and remove the enclosure panel to access the air intake area during installation as described below.

1. Remove two screws from the top of the air intake panel. Pull the the panel up and off. See Figure 1-4.

2. To make the electrical connections, you will also need to remove the cover panel over the terminal block as shown in Section 1.9.3.

The generator set requires correct air flow for cooling and combustion. The inlet and outlet openings in the sound enclosure provide the cooling and combustion air. Figure 1-3 shows the locations of the cooling air intake and exhaust vents. Inspect the air inlet and outlet openings inside and outside the enclosure to ensure that the air flow is not blocked.

REAR VIEW

1. Air intake

2. Exhaust outlet

tp6733

Figure 1-3 Cooling Air Intake and Exhaust

The generator set is designed to operate with all enclosure panels and internal baffling in place. If during installation, maintenance or repair the unit must be operated without the complete enclosure and baffling as shipped from the factory make sure the exhaust panel is removed as well.

3. Reinstall the panels after all electrical connections are complete and the battery is installed and connected.

1. Remove 2 screws.

ADV-8424

Figure 1-4 Removing the Air Intake Panel

1.5 Dimension Drawings

See the dimension drawings in Section 3 for the generator set dimensions, fuel and electric inlet locations, and recommended clearance.

TP-6803 6/15 13Section 1 Installation

Page 14

1.7 Fuel Requirements

The generator set operates using natural gas or LPG fuel. The generator set is EPA-certified for both natural gas and LPG fuels.

The fuel system installation must complywith applicable national, state, and local codes.

WARNING

Explosive fuel vapors. Can cause severe injury or death.

Use extreme care when handling, storing, and using fuels.

Explosive fuel vapors can cause severe injury or death.

Take additional precautions when using the following fuels:

Propane (LPG)—Adequate ventilation is mandatory. Because propane is heavier than air, install propane gas detectors low in a room. Inspect the detectors per the manufacturer’s instructions.

Natural Gas—Adequate ventilation is mandatory. Because natural gas rises, install natural gas detectors high in a room. Inspect the detectors per the manufacturer’s instructions.

1.7.1 Fuel Supply

Because of variable climates and geographical considerations, contact the local fuel supplier for fuel

system planning and installation. Figure 1-5 lists the recommended fuel ratings and other fuel supply information for natural gas and LPG fuels.

Verify that the output pressure from the primary gas utility pressure regulator is within the range shown in Figure 1-5 and that the utility gas meter flow rate is sufficient to supply the generator set at rated load plus all other gas-consuming appliances. For LPG tanks, verify that the output pressure is as shown in Figure 1-5. See Figure 1-6 for fuel consumption. Contact the fuel supplier for flow rate information or a gas meter upgrade, if necessary.

Natural

Fuel type

Gas

LPG

Fuel supply inlet 1/2 NPT

Fuel supply pressure, kPa (in. H2O)

14RESA/RESAL 1.3--2.7

(5--11)

20RESA/RESAL 1.3--2.7

(5--11)

20RESC/RESCL 0.9--2.7

(3.5--11)

1.7--2.7 (7--11)

Fuel flow rate, maximum, Btu/hr.:

14RESA/RESAL 193,000 203,000

20RESA/RESAL 281,000 340,000

20RESC/RESCL 281,000 340,000

Nominal Fuel Rating, Btu/ft.

Natural gas 1000

LPG 2500

Figure 1-5 Fuel Supply

Fuel Type % Load

100% 5.4 (193) 4.9 (175) 8.0 (281) 6.4 (225)

Natural Gas

LPG

LPG conversion factors:

8.58 ft.

0.535 m

36.39 ft.

=1lb.

3 3

=1kg

= 1 gal.

75% 4.7 (163) 4.2 (148) 6.9 (243) 5.4 (189)

50% 3.5 (124) 3.1 (108) 4.6 (161) 3.9 (139)

25% 2.6 (93) 2.4 (84) 3.6 (127) 2.9 (103)

100% 2.3 (81) 2.1 (74) 3.9 (136) 2.9 (102)

75% 2.1 (75) 1.9 (68) 3.1 (109) 2.4 (85)

50% 1.8 (60) 1.5 (53) 2.3 (82) 1.8 (63)

25% 1.2 (45) 1.1 (40) 1.7 (59) 1.3 (47)

Figure 1-6 Fuel Consumption

Fuel Consumption, m3/hr. (cfh)

14RESA/RESAL 20RESA/RESAL/RESC/RESCL

60 Hz 50 Hz 60 Hz 50 Hz

Nominal fuel rating:

Natural gas: 37 MJ/m LPG: 93 MJ/m

(1000 Btu/ft.3)

(2500 Btu/ft.3)

TP-6803 6/1514 Section 1 Installation

Page 15

1.7.2 Fuel Pipe Size

Ensure that the fuel pipe size and length meet the specifications in Figure 1-7. Measure the pipe length from the primary gas pressure regulator to the pipe connection on the generator set fuel inlet. Add 2.4 m (8 ft.) to the measured length for each 90 degree elbow. Compare the total pipe length with the chart in Figure 1-7 to find the required pipe size.

Contact local LPG provider for LPG installation information.

Minimum Gas Pipe Size Recommendation, in. NPT

20RESA/RESAL

14RESA/RESAL

Pipe

Length,

m (ft.)

8 (25) 3/4 3/4 1 3/4

15 (50) 1 3/4 1 1

30 (100) 1 1 11/4 1

46 (150) 11/4 1 11/4 11/4

61 (200) 11/4 1 11/4 11/4

Natural

Gas

(193,000

Btu/hr.)

LPG

(203,000

Btu/hr.)

Figure 1-7 Fuel Pipe Size Recommendations

20RESC/RESCL

Natural

Gas

(281,000

Btu/hr.)

LPG

(340,000

Btu/hr.)

Apply pipe sealant that is approved for fuel connections. Hold the fuel solenoid valve with a wrench when tightening the fuel connections.

Note: Do not hold the fuel solenoid valve coil when

tightening the fuel connections. See Figure 1-8 for the recommended wrench locations.

Note: Do NOT hold the valve

coil when tightening connections.

IMG_0351

1. Hold valve with wrench on flats of valve body

2. Alternate wrench location

1.7.3 Connecting the Fuel Supply

The dimension drawing in Section 3 shows the location of the fuel inlet connection. Have the fuel supplier install rigid gas piping and a manual fuel shut-off valve. The fuel supply line should line up with the generator set fuel inlet and end about 12 inches away to allow connection with asection of flexiblefuel line. Use flexible sectionsto prevent fuel line breakage caused by vibration.

Note: Do not bend the flexible fuel line to make up for

misalignment of the fuel supply line and the generator set fuel inlet.

Figure 1-8 Holding Fuel Valve to Tighten Fuel

Connections

Open the manual fuel valves and test all fuel connections using soapy water. If a leak is found, close the fuel valves, clean the fittings, and apply fresh sealant. Check for fuel leaks again with the generator set running.

Protect all fuel lines from machinery or equipment contact, adverse weather conditions, and environmental damage.

TP-6803 6/15 15Section 1 Installation

Page 16

1.8 Fuel Conversion

The multi-fuel system allows conversion from natural gas to LPG (or vice-versa) in the field while maintaining emissions-standard compliance. A trained technician or an authorized distributor/dealer can convert the fuel system.

After converting the fuel system, change the Fuel Type setting on the controller. See the Operation Manual for instructions to change settings at the controller, or use a personal (laptop) computer and Kohlerr SiteTecht software to change the setting.

Rating Change

Converting the fuel will change the generator set rating. See the generator set specification sheetfor ratings with natural gas and LP. Order a new nameplate with the updated rating and fuel information from an authorized distributor/dealer, if necessary. Provide the following information from the original nameplate:

WARNING

Explosive fuel vapors. Can cause severe injury or death.

Use extreme care when handling, storing, and using fuels.

Explosive fuel vapors can cause severe injury or death.

Take additional precautions when using the following fuels:

Propane (LPG)—Adequate ventilation is mandatory. Because propane is heavier than air, install propane gas detectors low in a room. Inspect the detectors per the manufacturer’s instructions.

Natural Gas—Adequate ventilation is mandatory. Because natural gas rises, install natural gas detectors high in a room. Inspect the detectors per the manufacturer’s instructions.

D Model Number D kVA D Spec Number D Amps D Serial Number D Volts D Fuel (original and new) D Hz D kW

Attach the new nameplate over the old one. Do NOT cover the UL listing information on the old nameplate.

WARNING

Accidental starting. Can cause severe injury or death.

1.8.1 Fuel Conversion, 14RESA/RESAL Equipped with Fuel Block

Note: Model 14RESA/RESAL generator sets built

before June 26, 2014 use a fuel block for the fuel type selection. See Figure 1-9 and use the instructions in this section for fuel conversion.

Model 14RESA/RESAL generators built June 26, 2014, or later are not equippedwith the fuel block. These units use fuel orifice fittings installed in the hose fitting at the fuel regulator. See Section

1.8.2 for fuel conversion instructions.

Two fuel connections on the fuel block allow fieldconversion between natural gas and LPG. The fuel metering valves are factory-set and sealed to comply with applicable e mission standards and to provide the best possible hot and cold starting.

Note: Do not adjust the factory-sealed fuel-metering

adjustments on the fuel block. Changing the fuelmetering adjustmentsmay violate federalor state laws.

Disabling the generator set. Accidental starting can cause severe injury or death. Before working on the

generator set or equipment connected to the set, disable the generator set as follows: (1) Press the generator set off/reset button to shut down the generator set. (2) Disconnect the power to the battery charger, if equipped. (3) Remove the battery cables, negative (--) lead first. Reconnect the negative (--) lead last when reconnecting the battery. Follow these precautions to prevent the starting of the generator set by the remote start/stop switch.

Use the following procedure to convert from natural gas (NG) to LPG. See Figure 1-9 for the fuel system component locations.

TP-6803 6/1516 Section 1 Installation

Page 17

Procedure to convert from NG to LPG, 14RESA/RESAL with fuel block

1. Press the OFF button on the generator set controller.

2. Disconnect the power to the battery charger.

3. Disconnect the generator set engine starting battery, negative (--) lead first.

4. Turn off the fuel supply.

Conversion from LPG to Natural Gas

To convert from LPG to natural gas, follow the fuel conversion procedure above, moving the hose fitting to the natural gas port and plugging the LP port. Connect the DSAI leads for natural gas. See Figure 1-9.

LPG setup shown

5. Remove the hose clamp and fuel hose from the hose fitting in the fuel block. See Figure 1-9.

6. Remove the hose fitting from the natural gas outlet port in the fuel block. See Figure 1-9.

7. Remove the plug from the LP port in the fuel block. SeeFigure1-9.

8. Clean the plug with a dry cloth or brush, apply fresh pipe sealant, and install the plug into the natural gas outlet port.

9. Clean the hose fitting with a dry cloth or brush, apply fresh pipe sealant to the threads, and install the fitting into the LP port.

Note: Do not adjust the fuel metering valves.

10. Slide the hose onto the hose fitting and secure it with the clamp.

11. Disconnect digital ignition timing leads 65 and N3 for LPG. The ignition timing leads are located near the fuel solenoid valve. See Figure 1-9.

photo223

12. Connect and turn on the new fuel supply.

13. Reconnect the generator set engine starting battery leads, negative (--) lead last.

14. Reconnect power to the battery charger.

15. Start the generator set by pressing the RUN button on the generator set controller.

16. Check for leaks using a gas leak detector.

1. Fuel block

2. Fuel metering valves—factory-sealed, do not adjust

3. Fuel solenoid valve coil

4. Fuel inlet, 1/2 in. NPT

5. Ignition timing leads 65 and N3

6. Recommended holding points for tightening fuel connection

7. Fuel regulator

8. Ports are labeled LP and NG

9. Plug

10. Hose fitting

Ignition Timing Lead Connection

17. Run the generator set and check the operation.

Figure 1-9 Fuel System, 14RESA/RESAL Equipped

18. Press the OFF button toto shut down thegenerator set.

TP-6803 6/15 17Section 1 Installation

with Fuel Block (built before June 26,

2014)

Page 18

1.8.2 Fuel Conversion, 14RESA/RESAL Equipped with Fuel Orifice Fittings

Note: Model 14RESA/RESAL generator sets built

before June 26, 2014, use a fuel block for the fuel type selection. See Figure 1-9 and use the instructions Section 1.8.1 for fuel conversion.

Model 14RESA/RESALgenerators built June 26, 2014, or later are not equippedwith the fuel block. These units use fuel orifice fittings installed in the hose fitting at the fuel regulator. See Figure 1-11 and use the instructions in this section for fuel conversion.

For natural gas and LPG fuel, orifice fittings are used in the fuel line. See Figure 1-10. The natural gas orifice fitting is silver in color and stamped NG. The LPG fitting is gold in color and stamped LPG. The fittings are threaded. A straight-blade screwdriver is required to remove and replace the fittings.

NG LPG

Figure 1-10 NG and LPG Fuel Orifice Fittings

The unit is typically shipped set up for natural gas, with the LPG fitting tied near the fuel solenoid valve. To convert to LPG, remove the NG fitting and install the LPG fitting as described below. See Figure 1-11 for the fuel system component locations.

Procedure to Convert from NG to LPG, 14RESA/RESAL with fuel orifice fittings

1. Press the OFF button on the generator set controller.

2. Disconnect the utility power to the generator.

3. Disconnect the generator set engine starting battery, negative (--) lead first.

4. Turn off and disconnect the fuel supply.

5. Remove the hose clamp and fuel hose from the hose fitting. See Figure 1-11.

Ignition Timing Lead Connection

1. LPG fitting tied to bracket for shipping

2. Fuel hose and clamp

3. Ignition timing leads

Figure 1-11 Fuel System, As Shipped (Model

14RESA/RESAL built after June 26,

2014)

6. Use a straight-blade screwdriver to remove the NG orifice from the hose fitting. See Figure 1-12.

7. Insert the LPG orifice into the hose fitting. Use a straight-blade screwdriver to tighten the fitting until it is snug.

8. Slide the hose onto the hose fitting and secure it with the clamp.

9. Disconnect ignition timing leads 65 and N3 for LPG. The ignition timing leads are located near the fuel solenoid valve. See Figure 1-11.

TP-6803 6/1518 Section 1 Installation

Page 19

10. Connect and turn on the new fuel supply.

15. Run the generator set and check the operation.

11. Reconnect the generator set engine starting battery leads, negative (--) lead last.

12. Reconnect the utility power to the generator.

13. Start the generator set by pressing the RUN button on the generator set controller.

14. Check for leaks using a gas leak detector.

16. Press the OFF button to shut down the generator set.

Conversion from LPG to Natural Gas

To convert from LPG to natural gas, repeat the steps above, removing the LPG fuel orifice and installing the NG fitting. Connect ignition timing leads 65 and N3 together for natural gas.

ORIFICE FITTING DETAIL

1. Orifice fitting (see detail)

2. Hose barb fitting

Figure 1-12 14RESA/RESAL Fuel System Showing Orifice Fittings (generators built after June 26, 2014)

GM84143

TP-6803 6/15 19Section 1 Installation

Page 20

1.8.3 Fuel Conversion, 20RESA/RESAL/RESC/RESCL

For LPG fuel, an orifice is used in the fuel line. The unit is typically shipped set up for natural gas, with the loose orifice tied near the fuel solenoid valve. To convert to LPG, install the LPG orifice as described below. See Figure 1-13 for the fuel system component locations.

Note: The generator set harness may contain a pair of

ignition timing leads near the fuel solenoid valve. Connecting or disconnecting these leads has no effect on the 20RESA/RESAL/RESC/RESCL operation.

Procedure to Convert from NG to LPG, 20RESA/RESAL/RESC/RESCL

1. Press the OFF button on the generator set controller.

LPG setup shown

1. LPG orifice

2. Hose fitting

3. Regulator

4. Regulator vent tubes (vent to the outside of the controller)

GM84143

2. Disconnect the power to the battery charger.

3. Disconnect the generator set engine starting battery, negative (--) lead first.

4. Turn off the fuel supply.

5. Remove the hose clamp and fuel hose from the hose fitting. See Figure 1-13.

6. Insert the LPG orifice into the hose fitting. See Figure 1-13.

7. Slide the hose onto the hose fitting and secure it with the clamp.

8. Connect and turn on the new fuel supply.

9. Reconnect the generator set engine starting battery leads, negative (--) lead last.

10. Reconnect power to the battery charger.

11. Start the generator set by pressing the RUN button on the generator set controller.

12. Check for leaks using a gas leak detector.

Figure 1-13 Fuel Regulator and LPG Orifice,

20RESA/RESAL/RESC/RESCL

1.8.4 Regulator Vent Hose

Model 20RESA/RESAL/RESC/RESCL generators are equipped with fuel regulator vent hoses. Drill or punch two holes in the enclosure at the locations shown on the template in Appendix B. It may be convenient to cut openings for the electrical leads at the same time as shown on the template and in Section 1.9.2.

Insert the open ends of the hoses through the holes to the outside of the enclosure as shown in Figure 1-14.

13. Run the generator set and check the operation.

14. Press the OFF button to shut down the generator set.

Conversion from LPG to Natural Gas

To convert from LPG to natural gas, repeat the steps above to remove the LPG fuel orifice.

sb722

1. Fuel regulator vent tubes, qty. 2

2. Drill or punch two holes and route both hoses to the outside of the enclosure

Figure 1-14 Fuel Regulator Vent Hoses

TP-6803 6/1520 Section 1 Installation

Page 21

1.9 Electrical Connections

DANGER

Hazardous voltage. Will cause severe injury or death.

This equipment must be installed and serviced by qualified electrical personnel.

Grounding electrical equipment. Hazardous voltage can cause severe injury or death. Electrocution is possible

whenever electricity is present. Ensure you comply with all applicable codes and standards. Electrically ground the generator set, transfer switch, and related equipment and electrical circuits. Turn off the main circuit breakers of all power sources before servicing the equipment. Never contact electrical leads or appliances when standing in water or on wet ground because these conditions increase the risk of electrocution.

Electrical backfeed to the utility. Hazardous backfeed voltage can cause severe injury or death. Install a transfer

switch in standby power installations to prevent the connection of standby and other sources of power. Electrical backfeed into a utility electrical system can cause severe injury or death to utility personnel working on power lines.

NOTICE

Canadian installations only. For standby service connect

the output of the generator set to a suitably rated transfer switch in accordance with Canadian Electrical Code, Part 1.

Have an authorized distributor/dealer or a licensed electrician make the following electrical connections. The electrical installation must comply with the National Electrical Coder (NEC) class 1 wire designation and all applicable local codes. Canadian installations must comply with the Canadian Electrical Code (CEC) and applicable local codes.

AC circuit protection. All AC circuits must include circuit breaker or fuse protection. The circuit breaker must be rated for a maximum of 125% of the rated generator set output current. The circuit breaker must open all ungrounded connectors. The generator set is equipped with a factory-installed circuit breaker.

For customer-supplied wiring, select the wire temperature rating in Figure 1-15 based upon the following criteria:

D Select row 1, 2, 3, or 4 if the circuit rating is

110 amperes or less or requires #1 AWG (42.4 mm

or smaller conductors.

D Select row 3 or 4 if the circuit rating is greater than

110 amperes or requires #1 AWG (42.4 mm

)or

larger conductors.

)

Row Temp . Ra t i n g Copper (Cu) Only Cu/Aluminum (Al) Combinations Al Only

60_C (140_F)

75_C (167_F)

60_C (140_F) Use No. * AWG, 60_Cwire Use 60_C wire, either No. * AWG Cu or No. *

75_C (167_F) Use No. *[ AWG, 75_Cwire Use 75_C wire, either No. *[ AWG Cu or No.

90_C (194_F) Use No. *[ AWG, 90_Cwire Use 90_C wire, either No. *[ AWG Cu or No.

* The wire size for 60_C (140_F) wire is not required to be included in the marking. If included, the wire size is based on ampacities for the

wire given in Table 310-16 of the National Electrical Coder, in ANSI/NFPA 70, and on 115% of the maximum current that the circuit carries under rated conditions. The National Electrical Coder is a registered trademark of the National Fire Protection Association, Inc.

[ Use the larger of the following conductors: the same size conductor as that used for the temperature test or one selected using the

guidelines in the preceding footnote.

Use No. * AWG, 60_Cwireor use No. * AWG, 75_Cwire

Use 60_C wire, either No. * AWG Cu, or No. * AWG Al or use 75_C wire, either No. * AWG Cu or No. * AWG Al

AWG Al

*[ AWG Al

Use 60_Cwire,No.*AWGor use 75_Cwire,No.*AWG

Use 60_Cwire,No.*AWG

Use 75_Cwire,No.*[ AWG

Use 90_Cwire,No.*[ AWG

Figure 1-15 Terminal Markings for Various Temperature Ratings and Conductors

The National Electrical Coder is a registered trademark of the National Fire Protection Association, Inc.

TP-6803 6/15 21Section 1 Installation

Page 22

1.9.1 Grounding

1.9.3 Field-Connection Terminal Block

Ground the generator set. The grounding method must comply with NEC and local codes. Connect the

grounding cable to the generator set ground terminal GND on the field-connection terminal block.

Generator sets are shipped with the generator neutral bonded (connected) to the generator ground in the junction box. The requirement for having a bonded (grounded) neutral orungrounded neutral is determined by the type of installation. At installation, the neutral can be grounded at the generator set or lifted from the ground stud and isolated if the installation requires an ungrounded neutral connection at the generator. The generator setwill operate properlywith the neutraleither bonded to ground or isolated from ground at the generator.

Various regulations andsite configurations including the National Electrical Code (NEC), local codes, and the type of transfer switch used in the application determine the grounding of the neutral at the generator. NEC Section 250 is one example that has a very good explanation of the neutral grounding requirements for generators.

The generator set is equipped with a field-connection terminal block located in the air intake area near the junction box. Leads have been factory-installed from the junction box to the terminal block for easy field wiring.

See Figure 1-17 for the terminal block location. Remove the cover panel for access to the field connections.

1.9.2 Electrical Lead Entry

Drill or punch holes in the enclosure for the electrical conduit in the locations shown in Figure 1-16. A full-scale dimensioned template for the hole locations is printed in Appendix B. See page 69.

Note: See Appendix B for a full-scale template

with dimensions.

1. Optional emergency stop switch location. Do not use to

route wiring.

2. Utility voltage electrical lead entry point (drill or punch)

3. Do not drill holes in this part of the panel

4. ATS signal electrical lead entry point (drill or punch)

5. 1/2 NPT female fuel inlet

ADV--8424

adv-8424

1. Cover panel. Remove for access to field-connection terminal block.

Figure 1-17 Field-Connection Terminal Block

Location

Figure 1-16 Electrical Lead Entry Locations

TP-6803 6/1522 Section 1 Installation

Page 23

See Figure 1-18 for terminal block details. Refer to the terminal block decal shown in Figure 1-19 for connections and cable sizes. Also see the wiring diagram in Section 3.

Route AC leads through flexible conduit. Ensure that the leads and conduit do not interfere with the operation of the generator set or obstruct the serviceareas. Route low-voltage communication leads through separate conduit.

Procedure

a. Route the network cable with other low-voltage

signal wiring (for example, the RBUS communication leads or engine start leads to the transfer switch), in separate conduit from the ACload leads. If the networkcable is longer than 100 meters (328 ft.), use a repeater or switch.

b. Use an RJ45 inline coupler to connect the

Ethernet cable to the cable in the customer connection box. See Figure 1-18. The inline coupler is included with the OnCue Plus kit.

1. Drill holes for the conduit fittings. See Figure 1-16 and Appendix B for the recommended electrical inlet locations. Feed the cables through the openings.

2. Connect the leads from the transfer switch emergency source lugs to the L1, L2, and L3 connections on the generator set terminal block as applicable for single or three-phase applications. See Figure 1-18 and Figure 1-19.

3. Connect the neutral (L0) and ground (GRD) leads from the ATS and the main panel to the corresponding connection points on the terminal block. See Section 1.9.1, Grounding.

4. Connect AC power source leads to the terminal block connections labeled LINE, NEUTRAL and GROUND. Connect the circuit to the load side of the transfer switch. See Section 1.9.4 for more information about the AC power requirement.

Note: AC power must be connected to maintain

the charge on the engine starting battery.

5. For connection of optional transfer switches, the programmable interface module (PIM), and/or a load shed kit, see Section 1.10.1.

Note: The ground lug near the terminal block

(item 3 in Figure 1-18) is used to connect the shield on the communication cable for the accessories.

6. If the OnCuer Plus Generator Management System will be used with the generator set, run category 5E network cable from the generator set to the customer’s router or modem.

7. When connections to the terminal block are complete, replace the cover plate.

GM84094

Note: The number of terminals varies for 1-phase

and 3-phase models. See Figure 1-19.

1. Low voltage RBUS communication to RXT ATS, PIM, load shed kit, and/or APM.

2. Engine start connections from transfer switches other than theRXT,ifused.

3. Ground connection for communication cable shield

4. Ethernet cable for optional OnCue Plus connection

5. AC load connections

6. AC power connections required for battery charging and accessories

7. Connection decal; see Figure 1-19.

Figure 1-18 Field Connection Terminal Blocks

Note: The OnCue Plus Wireless kit allows

connection of the generator controller to the customer’s wireless router without running a network cable from the generator to the customer’s router or modem. If the OnCue Plus Wireless is used, follow the instructions provided with the kit to install and set up the wireless kit and proceed to step 7.

TP-6803 6/15 23Section 1 Installation

Page 24

1-Phase, 1-Pole Circuit Breaker

1-Phase, 2-Pole Circuit Breaker

1.9.4 AC Power Supply

The installer must connect AC power for the battery charger (which is integral to the RDC2 controller) and the optional accessories shown in Figure 1-20. The power source must comply with state and local codes. The power to the battery charger and accessories must be backed upby the generator so thatpower is available at all times.

Be sure to disconnect power at the distribution panel before makingthe connections. Connect power leadsto the AC power connection points labeled LINE, NEUTRAL, and GROUND on the field-connection terminal block. Connect the circuit to the load side of the transfer switch so that it is backed up by the generator. See Figure 1-18 and the wiring diagrams in Section 3 for connection details.

Power Requirement, Max.

Equipment

Battery charger (standard)

Carburetor heater (optional)

Battery heater (optional)

Fuel regulator heater (optional; available for 20RESA/RESAL/RESC/ RESCL only)

Watts Volts at 50/60 Hz

50 100--120 VAC

50 200--250 VAC

60 100--120 VAC

100 200--250 VAC

100--120 VAC

200--250 VAC

100--120 VAC

200--250 VAC

3-Phase

Figure 1-19 Terminal Block Connection Decals

Figure 1-20 Power Requirements

TP-6803 6/1524 Section 1 Installation

Page 25

1.10 ATS and Accessory Communication Connections

The following sections cover communication connections fromthe generator setto automatic transfer switches and RBUS accessories, including the programmable interface module (PIM) and the load shed kit.

1.10.1 Transfer Switch Connection

Connect the ATS or remote start/stop switch. Connect the load leads from the generator set to the Emergency source lugs on the ATS. Route low-voltage communication leads through separate conduit from the AC power and load leads. All connections must comply with applicable state and local codes.

Note: Do not use the Kohlerr Model RRT transfer

switch with the RESA/RESAL or RESC/RESCL generator sets covered in this document.

Communication connections for a Model RXT transfer switch

One Model RXT transfer switch can be connected to the generator set. See Figure 1-21. Use shielded, twisted-pair communication cable to connect P10-1 through P10-4 on the transfer switch interface module to the generatorset terminal block connections A, B, PWR, and COM. See Section 1.10.2 for the communication cable recommendations and maximum cable length.

Note: Connections 3 and 4 on the generator set are not

used with the Model RXT transfer switch.

Engine start connection for other transfer switches or a remote start/stop switch

Connect the engine start leads from the transfer switch or remote start switch to terminals 3 and 4 on the terminal block. See Figure 1-22. Route the engine start leads through separate conduit from the AC power and load leads.

Generator Set

RBUS

12 VDC

GND

PWR

COM

PWR

COM

PWR

COM

RXT*

Note: Generator set terminal block connections 3 and 4 are NOT USED with the Model RXT ATS.

* RXT transfer switch with standard or combined interface/load management board.

1. Generator set terminal block. See Figure 1-17 for location. Check the decal on the generator set for terminal block connections.

2. Connect one end of each cable shield to GROUND at the generator set.

3. Communication cable Belden #9402 or equivalent 20 AWG shielded, twisted-pair cable. See Section 1.10.2, Cable Specifications.

4. Leave one end of each cable shield disconnected. If accessory modules (PIM or load shed kit) are connected, see Section 1.10.3.

Figure 1-21 Model RXT Transfer Switch Communication Connection to Generator Set Terminal Block

TP-6803 6/15 25Section 1 Installation

Page 26

Generator Set

PWR

COM

1. Generator Set Terminal Block. See the dimension drawings in Section 3 for location. Check the decal on the generator set for terminal block connections.

2. Engine start leads 3 and 4. See the ATS manual for cable size specifications.

ATS

(with engine

start contacts)

Figure 1-22 Engine Start Connections with Transfer Switch Models other than Model RXT

1.10.2 Communication Cable Specifications

D For the longer cable runs shown inthe last tworows of

Figure 1-23, use 12 or 14 AWG cable for PWR and COM, and use the 20 AWG communication cable

RBUS Connections A and B

For the RBUS communication connections A and B to the optional RBUS modules, u se 20 AWG shielded,

specified above for the A and B connections only. In this case, single-pair communication cable such as Belden #8762 can be used for the A and B connections.

twisted-pair communication cable. Belden #9402 (two-pair) or Belden #8762 (single-pair) or equivalent cable is recommended. Optional RBUS modules can include the Model RXT transfer switch, RXT combined interface/load management board, automatic paralleling module (APM), programmable interface module (PIM), and/or the load shed kit for the RDT or RXT transfer switch.

For outdoor installations, including those with buried cables and/or conduit, use outdoor-rated Belden #1075A or equivalent 20 AWG shielded, twisted-pair communication cable.

1.10.3 System Connections with Accessory Modules

See Figure 1-24 through Figure 1-28 for connection options to RBUS accessory modules. Note the cable shield connections shown in Figure 1-24.

Note: Refer to the installation instructions provided with

the automatic paralleling module (APM) for RBUS connections to the APM.

The maximum cable length depends on the number of RBUS modules connected. See Figure 1-23 for the

PWR and COM Connections

maximum cable lengths with 1, to 4 modules per cable run.

For the PWR and COM connections, the cable size and maximum cable length depends on the number of modules connected. See Figure 1-23.

Note: A model RXT transfer switch with combined

interface/load management board acts as two RBUS modules: one RXT transfer switch and

D For short cable runs shown in the first two rows of

one load management device.

Figure 1-23, use one pair in the two-pair communication cable for the A and B connections, and use the second pair for the PWR and COM

Power Relay Modules are not RBUS modules and do not add to the number of modules in Figure 1-23.

connections.

tp6803

TP-6803 6/1526 Section 1 Installation

Page 27

Maximum length per run, meters (ft.)

Number of Modules (RXT, APM, PIM, and/or load management device) per Run

Cable (TB1-- PWR and COM)

Belden #9402 or equivalent 20AWG for indoor installations

Belden #1075A or equivalent 20AWG for outdoor installations or buried

1 Module 2 Modules 3 Modules 4 Modules

46 (150) 15 (50) 5 (17) Do not use 20AWG

for PWR and COM

46 (150) 15 (50) 5 (17) Do not use 20AWG

for PWR and COM

cables

14 AWG *

12 AWG *

* Use 12 or 14 AWG cable for PWR and COM connections only. For RBUS connections A and B, use shielded, twisted pair communication

cable specified above.

137 (450) 137 (450) 107 (350) 107 (350)

137 (450) 137 (450) 137 (450) 137 (450)

Figure 1-23 Total Cable Lengths for PWR and COM Connections

Generator Set

RBUS

12 VDC

GND

PWR

COM

RXT*

PWR

COM

PWR

COM

PWR

COM

PIM

PWR

COM

PWR

COM

Note: Connec t A to A, B to B, PWR to PWR, and COM to COM.

See Section 1.10.2, Cable Specifications.

* RXT transfer switch with standard or combined interface/load management board.

Do not use a load shed kit with a combined interface board.

1. Generator set terminal block. See Figure 1-17 for location. Check the decal on the generator set for terminal block connections.

2. Connect one end of each cable shield to GROUND at the generator set.

3. Communication cable Belden #9402 or equivalent 20 AWG shielded, twisted-pair cable.

4. Connect shields together as shown.

5. Leave one end of each cable shield disconnected at the last device.

Figure 1-24 Accessory Module Communication Connection Details

TP-6803 6/15 27Section 1 Installation

PWR

COM

Load Shed Kit

Page 28

GND

RXT*

Generator Set

RBUS

12 VDC

PWR

COM

PWR

COM

PWR

COM

PWR

COM

PIM

PWR

COM

PWR

COM

PWR

COM

Load Shed Kit

Note: Connec t A to A, B to B, PWR to PWR, and COM to COM.

See Section 1.10.2, Cable Specifications.

* RXT transfer switch with standard or combined interface/load management board.

Do not use a load shed kit with a combined interface board.

1. Generator set terminal block. See Figure 1-17 for location. Check the decal on the generator set for terminal block connections.

2. Connect one end of each cable shield to GROUND at the generator set.

3. Communication cable Belden #8762 or equivalent 20 AWG shielded, twisted-pair cable (one pair).

4. Connect shields together as shown.

5. Leave one end of each cable shield disconnected at the last device.

6. 12 AWG or 14 AWG leads for PWR and COM.

Figure 1-25 Accessory Module Connections with 12--14 AWG Power Leads

TP-6803 6/1528 Section 1 Installation

Page 29

Generator Set

RXT ATS

Termi n a l

Block

Notes:

D See Figure 1-17 for terminal block location on generator set.

Check the decal on the generator set for terminal block connections.

D See Section 1.10.2, Cable Specifications (3 runs with 1 module

each shown).

D See Figure 1-24 for communication connection detail (A and B,

PWR and COM).

D Use splices or wire nuts to collect multiple leads for connection to

the generator set terminal block. See Figure 1-27.

Figure 1-26 Accessory Module Connections (three cable runs with one module each)

Generator Set

RBUS

12 VDC

PWR

COM

Load Shed Kit

PIM

tp6803

PWR COM

A B

PWR

COM

SHIELDED

CABLE

SHIELDED

CABLE

1. Generator Set Terminal Block. See the dimension drawings in Section 3 for location. Check the decal on the generator set for terminal block connections.

2. Splice.

3. Connect all of the shield leads on this end to GROUND at the generator set.

Figure 1-27 Multiple Connections to the Generator Set

TP-6803 6/15 29Section 1 Installation

tp6803

Page 30

Generator Set

Termi n a l

Block

RXT ATS

Notes:

D See Figure 1-17 for terminal block location on generator

set. Check the decal on the generator set for terminal block connections.

D See Section 1.10.2, Cable Specifications.

D See Figure 1-24 for communication connection detail (A

and B, PWR and COM). Connect the cable shield to ground at the generator set.

PIM

Load Shed Kit

D Use splices or wire nuts to collect multiple leads for

connection to the generator set terminal block. See Figure 1-27.

Figure 1-28 Accessory Module Connections (two cable runs with one and two modules shown)

tp6809

TP-6803 6/1530 Section 1 Installation

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1.11 Battery

WARNING

Battery acid cleanup. Battery acid can cause severe injury or death. Battery acid is electrically conductive and

corrosive. Add 500 g (1 lb.) of bicarbonate of soda (baking soda) to a container with4L(1gal.)ofwaterandmixthe neutralizing solution. Pour the neutralizing solution on the spilled battery acid and continue to add the neutralizing solution to the spilled battery acid until all evidence of a chemical reaction (foaming) has ceased. Flush the resulting liquid with water and dry the area.

Sulfuric acid in batteries. Can cause severe injury or death.

Wear protective goggles and clothing. Battery acid may cause blindness and burn skin.

WARNING

Explosion. Can cause severe injury or death. Relays in the battery charger cause arcs or sparks.

Locate the battery in a well-ventilated area. Isolate the battery charger from explosive fumes.

Battery electrolyte is a diluted sulfuric acid. Battery acid can cause severe injury or death. Battery acid can cause

blindness and burn skin. Always wear splashproof safety goggles, rubber gloves, and boots when servicing the battery. Do not open a sealed battery or mutilate the battery case. If battery acid splashes in the eyes or on the skin, immediately flush the affected area for 15 minutes with large quantities of clean water. Seek immediate medical aid in the case of eye contact. Never add acid to a battery after placing the battery in service, as this may result in hazardous spattering of battery acid.

Battery gases. Explosion can cause severe injury or death. Battery gases can cause an explosion. Do not smoke

or permit flames or sparks to occur near a battery at any time, particularly when it is charging. Do not dispose of a battery in a fire. To prevent burns and sparks that could cause an explosion, avoid touching the battery terminals with tools or other metal objects. Remove all jewelry before servicing the equipment. Discharge static electricity from your body before touching batteries by first touching a grounded metal surface away from the battery. To avoid sparks, do not disturb the battery charger connections while the battery is charging. Always turn the battery charger off before disconnecting the battery connections. Ventilate the compartments containing batteries to prevent accumulation of explosive gases.

Battery short circuits. Explosion can cause severe injury or death. Short circuits can cause bodily injury and/or

equipment damage. Disconnect the battery before generator set installation or maintenance. Remove all jewelry before servicing the equipment. Use tools with insulated handles. Remove the negative (--) lead first when disconnecting the battery. Reconnect the negative (--) lead last when reconnecting the battery. Never connect the negative (--) battery cable to the positive (+) connection terminal of the starter solenoid. Do not test the battery condition by shorting the terminals together.

Connecting the battery and the battery charger. Hazardous voltage can cause severe injury or death.

TP-6803 6/15 31Section 1 Installation

Page 32

Battery Description

Battery Installation Procedure

Starting batteries are usually the lead-acid type. Use a 12-volt group 51 battery with a minimum rating of 500 cold cranking amps at 0_F. The generator set uses a negative ground with a 12-volt engine electrical system. See Figure 1-29 for battery connections. Make sure that the battery is correctly connected and the terminals are tight.

Note: The generator set will not start and circuit board

damage may occur if the battery is connected in reverse.

See the dimension drawing in Section 3 for the engine starting battery location on the air intake side of the generator set. Standard battery cables provide easy connection to the battery.

1. To positive (+) terminal on starter solenoid.

2. To ground (--) terminal on or near starter motor.

EZ-273000-J

Figure 1-29 Typical Battery Connection

1. Ensure that the starting battery is fully charged before placing the battery in service.

2. Clean the battery posts and/or adapters if necessary.

3. Install the battery post adapters, if needed.

4. Place the battery in the housing.

5. Connect the positive (+) lead to the engine starting battery.

6. Connect the negative (--) lead to the engine starting battery.

Refer to the generator set operation manual and the battery manufacturer’s instructions for battery maintenance instructions.

When power isapplied to the RDC2/DC2 controller (that is, when the battery is connected), you will be prompted to set the date and time, and then to set the exerciser. See Section 1.13 and the generator set operation manual for instructions.

If the battery is disconnected for service orreplacement, the exercise settings on the RDC2/DC2 controller are lost. Set the exerciserafter installing and connectingthe battery. See Section 1.13, Set Exerciser.

Use the following procedure to install and connect the battery.

TP-6803 6/1532 Section 1 Installation

Page 33

1.12 Prestart Installation Check

WARNING

Hazardous voltage. Can cause severe injury or death.

Operate the generator set only when all guards and electrical enclosures areinplace.

WARNING

Moving parts.

Review the entire installation section. Inspect all wiring and connections to verify that the generator set is ready for operation. Check all items in the following Prestart Checklist.

Prestart Checklist

Air Cleaner. Check that a clean air cleaner element is

installed to prevent unfiltered air from entering the engine. See the generator set operation manual for instructions.

Air Inlets. Check for clean and unobstructed air inlets.

Battery. Check for tight battery connections. Consult

the battery manufacturer’s instructions regarding battery care and maintenance.

Enclosure. Check that all enclosure panels and internal baffling are in place.

Carbon monoxide. Can cause severe nausea, fainting, or death.

The exhaust system must be leakproof and routinely inspected.

Generator set operation. Carbon monoxide can cause severe nausea, fainting, or death. Carbon monoxide is an

Carbon monoxide symptoms. Carbon monoxide can cause severe nausea, fainting, or death. Carbon monoxide

is a poisonous gas present in exhaust gases. Carbon monoxide is an odorless, colorless, tasteless, nonirritating gas that can cause death if inhaled for even a short time. Carbon monoxide poisoning symptoms include but are not limited to the following:

D Light-headedness, dizziness D Physical fatigue, weakness in

joints and muscles

D Sleepiness, mental fatigue,

inability to concentrate or speak clearly, blurred vision

D Stomachache, vomiting, nausea

Exhaust System. Check for exhaust leaks and blockages. Check the muffler condition.

D Inspect the exhaust system components for cracks,

leaks, and corrosion. Check for tight exhaust system connections.

D Check for corroded orbroken metal parts andreplace

them as needed.

D Check that the exhaust outlet is unobstructed.

Oil Level. Maintain the oil level at or near, not over, the full mark on the dipstick.

Operating Area. Check for obstructions that could block the flow of cooling air. Keep the air intake area clean. Do not leave rags, tools, or debris on or near the generator set.

TP-6803 6/15 33Section 1 Installation

Page 34

1.13 Set the Exerciser

1.13.2 DC2 Controller

Set the exerciser to automatically run the generator set on the desired day and time every week or every two weeks. See the generator set Operation Manual for detailed descriptions of the exercise operation.

1.13.1 RDC2 Controller

When power isapplied to the RDC2 controller (when the battery or the utility power for the battery charger is connected), you will be prompted to set the date and time, and then to set the exerciser.

The first setting will flash. Press the Up and Down arrow buttons to change the setting. Press Select to save the setting and move on to the next. Repeat until the date, time, and exercise are set and the controller display shows the main menu. See the generator set Operation Manual for more detailed instructions to set the date and time and set the exerciser.

Press AUTO to place the generator set controller into automatic mode.

To set the exerciser on the DC2 controller, first press AUTO to place the controller into automatic (standby) mode. Then press and hold the Exercise button. The generator set will start and run a 20-minute unloaded cycle exercise. The generator set will run automatically for 20 minutes at the same time every 7 days. See the generator set Operation Manual for more information.

1.13.3 Loaded Exercise

In order to set a loaded exercise using the RDC2 or DC2 controller, a Kohlerr Model RXT transfer switch must be connected. See the generator set operation manual for instructions to set a loaded exercise.

To set a loaded exerciseon a generator set connected to a transfer switch other than a Model RXT, use the transfer switch controller to set the exercise. Refer to the transfer switch operation manual for instructions.

Date:

05Dec2011

Time:

08:31am

Next Exercise:

08:31a 12Dec2011

Setting will flash.

Press the up and down arrow buttons to change the setting.

Press Select to save the setting.

Figure 1-30 Set Time, Date, and Exercise (RDC2)

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2.1 Introduction

This section describes some of the accessories that are available for the generator sets. Have accessories installed by an authorized distributor/dealer or a licensed electrician. This document does not contain installation instructions for accessories. Follow the installation instructions provided with each kit.

Section 2 Accessories

Use separate conduit for AC and DC leads to reduce the possibility of electricalinterference. Verifythat the leads and conduit do not interfere with the operation of the generator set or obstruct the service areas. Verify that the electrical installation complies with the National Electrical Code (NEC) and all applicable local codes. See the wiring diagrams in Section 3 for more information regarding generator set electrical connections.

2.2 Programmable Interface Module (PIM)

The optional programmable interface module (PIM) provides two programmable inputs and six dry contact outputs, four of which are programmable. See TT-1584 for PIM installation and connection instructions. Also see Section 1.10 of this manual for connection to the generator set.

The default settings for the inputs and outputs are shown in Figure 2-2. To change the input and output settings, use a personal computer running Kohlerr SiteTecht software. See TP-6701, SiteTech Software Operation Manual, for instructions.

KohlerOnCuer PluscanbeusedtoactivelycontrolPIM outputs. See the OnCue Plus Operation Manual for instructions.

ADV-8199

1. Output connections (3 terminal blocks, 6 outputs)

2. Input connections (2 inputs)

3. RBUS communication connection to generator set terminal block TB2

Figure 2-1 Optional PIM

PIM Connection Factory Default Setting

Input 1 None

Input 2 None

Output 1 (Relay 1) Run

Output 2 (Relay 2) Common Fault

Output 3 (Relay 3) Low Battery Voltage

(Programmable)

Output 4 (Relay 4) Not in Auto (Programmable)

Output 5 (Relay 5) Cooldown (Programmable)

Output 6 (Relay 6) Normal Source Failure

(Programmable)

TP-6803 6/15 35Section 2 Accessories

Figure 2-2 PIM Inputs and Outputs

Page 36

2.3 Load Management Devices

Two optional load management devices are available for use with single-phase generator sets and a model RXT or RDT transfer switch:

D The optional Load Shed Kit mounts inside a Model

RDT or RXT transfer switch. Figure 2-3 shows the load shed assembly.

D The combined interface/load management board is

available for the Model RXT transfer switch.

The devices provide an automatic load management system to comply with Section 702.5 of NEC 2008. The installer is responsible for ensuring that the power system installation complies with all applicable state and local codes.

Verify that customer-provided equipment complies with applicable local and national electrical codes.

For detailed installation and connection instructions, see the installation instructions provided with the load shed kit or the Operation/Installation Manual for the Model RXT transfer switch.

Note: The load management devices are only

compatible with single-phase generator sets.

With a load management system, less critical appliances can be powered by the generator set when the more important appliances are not running, allowing the use of a smaller generator set than would be needed to run all of the building’s electrical equipment at the same time.

The load shed kit automatically manages up to six residential loads:

D Up to four normally closed power relays can be

connected through normally open relay contacts on the circuit board. See the load shed kit installation instructions for relay specifications. Kohlerr Power Relay Modules are recomended.

D Two relays are included on the load management

device to control two independent heating, ventilation, and air conditioning (HVAC) loads.

Note: Connect only non-essential loads to the load

shed kit.

1. Terminal block TB10

2. Load control circuit board

3. Mounting bracket

Note: Kit includes current transformer (CT), not shown.

GM88281

Figure 2-3 Load Shed Assembly GM88281-1

(mounts inside the transfer switch enclosure)

2.3.1 Power Relay Module

The power relay module kit contains one 50 amp normally closed relay with connecting lugs in a NEMA type 3R enclosure. Connect up to four (4) power relay modules to the load management devices listed above.

The power relay modules can be mounted indoors or outdoors. Two (2) 120 VAC loads(shed simultaneously) or a single 240 VAC load can be wired to each relay.

For detailed installation and connection instructions, see the installation instructions provided with the power relay module kit.

The load managementdevice receives commands from the RDC2 or DC2 generator controller and energizes or de-energizes the appropriate load relays to add or shed non-critical loads according to their priority.

An adequate electrical supply is required for operation of the customer-supplied power relays connected to the load shed kit. Check the electrical requirements of the customer-provided equipment prior to installation to determine the wire size and circuit protection required.

Figure 2-4 Power Relay Module

TP-6803 6/1536 Section 2 Accessories

Page 37

2.4 Regulator Heater

WARNING

Hot engine and exhaust system. Can cause severe injury or death.

Do not work on the generator set until it cools.

Servicing the engine heater. Hot parts can cause minor personal injury or property damage. Install the heater

before connecting it to power. Operating the heater before installation can cause burns and component damage. Disconnect power to the heater and allow it to cool before servicing the heater or nearby parts.

The optional regulator heater kit is designed for Model 20RESA/RESC and 20RESAL/RESCL generator sets. The regulator heater kit is recommended in addition to the carburetor heater for reliable engine starting in temperatures below --18_C(0_F). See Figure 2-5 for heater specifications. Order the 120 V or 240 V kit as appropriate for your application. See specification sheet G6-126 for kit details.

The fuel regulator heater requires a source of AC power. Verify that AC power is connected to the generator set as described in Section 1.9. The circuit must be backed up by the generator set to provide power at all times.

120 VAC generator sets are equipped with one or two 120 VAC receptacles. Use an adapter or splitter to connect more than one accessory to the receptacle.

240 volt heater kits use a 3-pin power connector. Generator sets built after 10/9/2013 with serial numbers SGM327VFJ or later have a knockout under the controller for the 240 VAC power connector. 240 volt fuel regulator heater kits include an adapter harness to allow connection of two AC accessories.

120 V Kit 240 V Kit

Heater rating 120 VAC, 60 W

50/60 Hz

Thermostat

Pad diameter 127 mm (5 in.)

Cord length 610 mm (24 in.)

4_C/13_C (40_F/55_F) Snap action

240 V, 100W

50/60 Hz

Figure 2-5 Regulator Heater Specifications

The fuel regulator heater is a 127 mm (5 in.) diameter round heating pad with a snap action thermostat and a power cord. Figure 2-6 and Figure 2-7 show the heater installed on the fuel regulator, which is located on the air intake side of the generator set. To install the regulator heater kit, follow the instructions in TT-1569, provided with the kit.

Knockout Detail

Note: Adapter harness for multiple accessories not shown.

1. 240 VAC power connection (see knockout detail)

2. Fuel regulator heater pad

GM79141-E

Figure 2-6 Model 20RESA/RESAL/RESC/RESCL

240 Volt Kit Power Connection

TP-6803 6/15 37Section 2 Accessories

Page 38

1. Fuel regulator heater pad

2. Receptacle with adapter (120 VAC kits)

Note: See Figure 2-6 for 240 volt power connection.

Figure 2-7 Installed Regulator Heater Kit (for 20RESA/RESAL/RESC/RESCL)

GM79141C

TP-6803 6/1538 Section 2 Accessories

Page 39

2.5 Carburetor Heater

WARNING

Hot engine and exhaust system. Can cause severe injury or death.

Do not work on the generator set until it cools.

Servicing the engine heater. Hot parts can cause minor personal injury or property damage. Install the heater

A carburetor heater is recommended for improved cold starting in locations where the ambient temperature drops below 0_C(32_F). The carburetor heater prevents condensationand carburetor icing. Theheater turns on when the temperature at the thermostat falls below approximately 4_C(40_F) and turns off when the temperature rises above approximately 16_C(60_F). The carburetor heaters are shown in Figure 2-9.

To install the carburetor heater, follow the instructions provided with the kit. Figure 2-10 shows the installed carburetor heater kit installed for a 14 kW generator set. Figure 2-11 shows the location for the carburetor heater kit on a 20 kW generator set.

Carburetor Heater for 14 kW Models

Carburetor Heater for 20 kW Models

1. Power plug

2. Thermostat

3. Heater

240 Volt Plug

Figure 2-9 Carburetor Heaters

GM19463

GM57968

Verify that AC power is connected to the generator set as described in Section 1.9. The circuit must be backed up by the generator set to provide power at all times.

The heater thermostat is installed in the cord. Figure 2-9 shows the location of the thermostat on the power cord. The heater power cord and thermostat are located in the generator set housing air intake area/ battery compartment.

For 120 volt models, plug the carburetor heater into one of the 120 VAC receptacles provided.

240 volt kits use a 3-pin power connector. Generator sets built after 10/9/2013 have a knockout in the bulkhead for the 240 VAC power connector. See Figure 2-12.

Kit Number 120 Volt Kits 240 Volt Kits

Voltage 120 VAC

Thermostat ON

Thermostat OFF

50/60 Hz

4 ± 4_C(40± 7_F)

16 ± 3_C(60± 5_F)

240 VAC/60 Hz 230 VAC/50 Hz

Figure 2-8 Carburetor Heater Specifications

tp6195

1. Carburetor heater (air cleaner removed to show heater)

2. Carburetor heater power cord

Figure 2-10 Carburetor Heater for 14 kW Models

TP-6803 6/15 39Section 2 Accessories

Page 40

Detail view:

adv-8424

GM57969-C

1. 240 VAC carburetor heater power cord

2. 240 VAC connector installed in bulkhead knockout

3. 120VAC receptacle location (for reference)

Figure 2-12 240 Volt Power Connection for

Carburetor Heaters

tt1482b

1. Carburetor heater location under air cleaner. Insert from the back of the generator set.

2. Carburetor heater

Figure 2-11 Carburetor Heater Location on 20 kW

Models

TP-6803 6/1540 Section 2 Accessories

Page 41

2.6 Battery Heater

WARNING

Hot engine and exhaust system. Can cause severe injury or death.

Do not work on the generator set until it cools.

Servicing the engine heater. Hot parts can cause minor personal injury or property damage. Install the heater

Optional 120 VAC and 240 VAC battery heater kits are available. The heater is thermostatically controlled. See Figure 2-13.

Wrap the heater around the battery and secure the cord using cable ties. See Figure 2-14. Plug the power cord into an AC receptacle.

For 120 volt models, plug the carburetor heater into one of the 120 VAC receptacles on the generator set.

240 volt kits use a 3-pin power connector. Generator sets built after 10/9/2013 have a knockout in the bulkhead for the 240 VAC power connector. The 240 volt battery heater kit includes an adapter harness that allows connection of up to three accessories.

GM92406

Note: Adapter harness for multiple accessories not shown.

1. Battery heater

2. Battery (not included in battery heater kit)

3. Power cord for 240 volt kits

Figure 2-14 Battery Heater

2.7 Emergency Stop Button

An emergency stop button is available as a loose kit. See the instructions provided with the kit for installation and connection procedures.

Battery Heater Specifications

Heater wrap voltage 100--120 VAC or

200--240 VAC

50/60 Hz

Heater wrap rating, Watts 50

Thermostat temperatures:

Off

Battery wrap length, mm (in.) 711 (28)

Power cord length, mm (in.) 1829 (72)

18_C(65_F)

27_C(80_F)

Figure 2-15 Optional Emergency Stop Pushbutton

Figure 2-13 Battery Heater Specifications

TP-6803 6/15 41Section 2 Accessories

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2.8 OnCue Plus Generator Management System

The OnCuer Plus Generator Management System allows monitoring and control of your generator set from a personal computer, smart phone, or tablet. OnCue Plus can also be configured to send email or text message notifications in the event of a generator set fault. Both a network cable connection version (OnCue Plus) and a wireless version (OnCue Plus Wireless) are available. See TP-6928, OnCue Plus Operation Manual, for instructions.

OnCue Plus

OnCue Plus is available separately as a loose kit. Use category 5E network cable to connect the RDC2 controller to the customer-supplied Ethernet router or modem. Route the cable with other low-voltage signal wiring (for example, the RBUS communication leads or engine start leads to the transfer switch), in separate conduit from the AC load leads. If the network cable is longer than 100 meters (328 ft.), use a repeater or switch.

Recommended: Use a laptop computer to verify the network connection before connecting to the generator set.

Checking the network connection

1. Check for and turn OFF any wireless connections to the laptop.

2. Connect the network cable to the laptop. Connect the other end of the network cable to the customer’s router or modem.

Connect to the Ethernet cable in the customer connection area of the generator set. See Figure 2-16. Use an RJ45 inline coupler, provided with the OnCue Plus kit, to connect the customer’s Ethernet cable to the cable in the customer connection box.

GM84094

1. Ethernet cable for optional OnCue Plus connection

Figure 2-16 Network Connection for OnCue Plus

OnCue Plus Wireless

The OnCue Plus Wireless kit allows connection of the generator set to the Internet through the customer’s wireless router without running a network cable from the generator to the customer’s Ethernet router. Follow the instructions provided with the kit to install and set up the wireless kit.

3. Verify the Internet connection by opening your web browser and going to www.kohlerpower.com or any known website.

4. After verifying the connection through the network cable, disconnect the network cable from the laptop and turn the laptop wireless connections back on.

TP-6803 6/1542 Section 2 Accessories

Page 43

2.9 PowerSync Automatic Paralleling Module (APM)

The PowerSyncr Automatic Paralleling Module (APM) allows the use of two Model 14RESA or two 20RESA/B/C/D generator sets in a single-phase paralleling system to supply power to one building or site. See Figure 2-17.

The APM provides a common connection point for paralleling generators and permits individual control of the generator connections, allowing for synchronization, redundancy, and generator management.

Generator management provides these features and benefits:

D Generator management runs one generator set

when power requirements are low, and automatically starts, synchronizes, and connects the second generator set when the load increases.

D Longer generator life: Smart generator management

automatically operates the generator with the lowest operating hours first, splitting the run time evenly between the two generator sets and extending the life of both units.

D Redundancy: If one generator set r equires service or

even fails, the other generator set is still available to provide power to your critical electronics.

Automatic paralleling requires:

D Two single-phase generator sets as shown above

D RDC2 paralleling firmware version 105.4 or higher on

each generator set. Download the paralleling firmware from TechTools.

D One Model RXT automatic transfer switch (ATS)

D One Automatic Paralleling Module (APM) kit

D A personal computer (laptop) with Kohlerr

SiteTecht software version 3.5 or higher is required for system setup.

D A load management device is required if one

generator set cannot support the maximum totalload.

The load management device (load shed kit or RXT combined interface/load management board) is necessary in order to shed non-criticalloads in the event that one generator set shuts down and the other generator set cannot support all of the loads.

See TT-1596, provided with the APM, for complete installation instructions. The APM and associated equipment must be installed b y a Kohlerr trained and authorized distributor or dealer.

If the APM is not installed within sight of the generator sets, local codes may require the installation of circuit breakers near the APM. Circuit breaker kits are available for installation inside the APM enclosure. See TT-1596 for the circuit breaker kit numbers for the 14RESA and 20RESA/B/C/D generator sets.

D Dual fuels: Allows operation of one generator set on

natural gas and the other on LPG, if desired.

D Simultaneous exercise: Setting the exercise time

and date on one generator set schedules both generator sets to exercise at the same time.

D Power during generator service: Customer override

allows maintenance or service to one generator set while the other continues to run.

The following combinations of single-phase generator sets can be paralleled:

D Two single-phase model 14RESA generator sets

with the same 110/220, 115/230, 120/240, 220, 230, or 240 volt configuration

D Two single-phase model 20RESA/B/C/D generator

sets with the same 110/220, 115/230, 120/240, 220, 230 or 240 volt configuration

zab26291

Figure 2-17 PowerSyncr Automatic Paralleling

Module

TP-6803 6/15 43Section 2 Accessories

Page 44

Notes

TP-6803 6/1544 Section 2 Accessories

Page 45

Section 3 Drawings and Diagrams

Figure 3-1 lists the drawing numbers and page numbers.

Dimension Drawings Drawing Number Page

14/20RESA/RESAL Dimension D rawing: ADV-8424-H

Dimensions Sheet 1 46

Maintenance item locations Sheet 2 47

Maintenance item locations Sheet 3 48

Location and clearance requirements, single unit Sheet 4 49

Location and clearance requirements, parallel units Sheet 5 50

20RESC/20RESCL Dimension Drawing: ADV-8754

Dimensions Sheet 1 51

Maintenance item locations Sheet 2 52

Location and clearance requirements, single unit Sheet 3 53

Location and clearance requirements, parallel units Sheet 4 54

Wiring Diagrams

14/20RESA/RESAL Schematic Diagram ADV-8706-C

1 phase, 2 pole circuit breaker Sheet 1 55

1 phase, 1 pole circuit breaker Sheet 2 56

3 phase, 3 pole circuit breaker Sheet 3 57

14/20RESA/RESAL Wiring Diagram GM93298-C

1 phase, 2 pole circuit breaker Sheet 1 58

1 phase, 1 pole circuit breaker Sheet 2 59

3 phase, 3 pole circuit breaker Sheet 3 60

20RESC/20RESCL Schematic Diagram ADV-8771

1 phase, 2 pole circuit breaker Sheet 1 61

1 phase, 1 pole circuit breaker Sheet 2 62

3 phase, 3 pole circuit breaker Sheet 3 63

20RESC/20RESCL Wiring Diagram GM96293

1 phase, 2 pole circuit breaker Sheet 1 64

1 phase, 1 pole circuit breaker Sheet 2 65

3 phase, 3 pole circuit breaker Sheet 3 66

Figure 3-1 Drawings and Diagrams

TP-6803 6/15 45Section 3 Drawings and Diagrams

Page 46

Figure 3-2 Dimension Drawing, 14/20RESA/RESAL, ADV-8424, Sheet 1 of 5

TP-6803 6/1546 Section 3 Diagrams and Drawings

Page 47

Figure 3-3 Dimension Drawing, 14/20RESA/RESAL, ADV-8424, Sheet 2 of 5

TP-6803 6/15 47Section 3 Diagrams and Drawings

Page 48

Figure 3-4 Dimension Drawing, 14/20RESA/RESAL, ADV-8424, Sheet 3 of 5

TP-6803 6/1548 Section 3 Diagrams and Drawings

Page 49

Figure 3-5 Dimension Drawing, 14/20RESA/RESAL, ADV-8424, Sheet 4 of 5

TP-6803 6/15 49Section 3 Diagrams and Drawings

Page 50

Figure 3-6 Dimension Drawing, 14/20RESA/RESAL, ADV-8424, Sheet 5 of 5

TP-6803 6/1550 Section 3 Diagrams and Drawings

Page 51

Figure 3-7 Dimension Drawing, Model 20RESC/20RESCL, ADV-8754, Sheet 1 of 4

TP-6803 6/15 51Section 3 Diagrams and Drawings

Page 52

Figure 3-8 Dimension Drawing, Model 20RESC/20RESCL, ADV-8754, Sheet 2 of 4

TP-6803 6/1552 Section 3 Diagrams and Drawings

Page 53

Figure 3-9 Dimension Drawing, Model 20RESC/20RESCL, ADV-8754, Sheet 3 of 4

TP-6803 6/15 53Section 3 Diagrams and Drawings

Page 54

Figure 3-10 Dimension Drawing, Model 20RESC/20RESCL, ADV-8754, Sheet 4 of 4

TP-6803 6/1554 Section 3 Diagrams and Drawings

Page 55

Figure 3-11 Schematic Diagram, 14/20RESA/RESAL, ADV-8706, Sheet 1 of 3

TP-6803 6/15 55Section 3 Diagrams and Drawings

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Figure 3-12 Schematic Diagram, 14/20RESA/RESAL, ADV-8706, Sheet 2 of 3

TP-6803 6/1556 Section 3 Diagrams and Drawings

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Figure 3-13 Schematic Diagram, 14/20RESA/RESAL, ADV-8706, Sheet 3 of 3

TP-6803 6/15 57Section 3 Diagrams and Drawings

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Figure 3-14 Point-to-Point Wiring Diagram, 14/20RESA/RESAL, GM93298, Sheet 1 of 3

TP-6803 6/1558 Section 3 Diagrams and Drawings

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Figure 3-15 Point-to-Point Wiring Diagram, 14/20RESA/RESAL, GM93298, Sheet 2 of 3

TP-6803 6/15 59Section 3 Diagrams and Drawings

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Figure 3-16 Point-to-Point Wiring Diagram, 14/20RESA/RESAL, GM93298, Sheet 3 of 3

TP-6803 6/1560 Section 3 Diagrams and Drawings

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Figure 3-17 Schematic Diagram, Model 20RESC/20RESCL, ADV-8771, Sheet 1 of 3

TP-6803 6/15 61Section 3 Diagrams and Drawings

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Figure 3-18 Schematic Diagram, Model 20RESC/20RESCL, ADV-8771, Sheet 2 of 3

TP-6803 6/1562 Section 3 Diagrams and Drawings

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Figure 3-19 Schematic Diagram, Model 20RESC/20RESCL, ADV-8771, Sheet 3 of 3

TP-6803 6/15 63Section 3 Diagrams and Drawings

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Figure 3-20 Wiring Diagram, Model 20RESC/20RESCL, GM96293, Sheet 1 of 3

TP-6803 6/1564 Section 3 Diagrams and Drawings

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Figure 3-21 Wiring Diagram, Model 20RESC/20RESCL, GM96293, Sheet 2 of 3

TP-6803 6/15 65Section 3 Diagrams and Drawings

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Figure 3-22 Wiring Diagram, Model 20RESC/20RESCL, GM96293, Sheet 3 of 3

TP-6803 6/1566 Section 3 Diagrams and Drawings

Page 67

Appendix A Abbreviations

The following list contains abbreviations that may appear in this publication.

A, amp ampere ABDC after bottom dead center AC alternating current A/D analog to digital ADC advanced digital control;

adj. adjust, adjustment ADV advertising dimensional

Ah amp-hour AHWT anticipatory high water

AISI American Iron and Steel

ALOP anticipatory low oil pressure alt. alternator Al aluminum ANSI American National Standards

AO anticipatory only APDC Air Pollution Control District API American Petroleum Institute approx. approximate, approximately APU Auxiliary Power Unit AQMD Air Quality Management District AR as required, as requested AS as supplied, as stated, as

ASE American Society of Engineers ASME American Society of

assy. assembly ASTM American Society for Testing

ATDC after top dead center ATS automatic transfer switch auto. automatic aux. auxiliary avg. average AVR automatic voltage regulator AWG American Wire Gauge AWM appliance wiring material bat. battery BBDC before bottom dead center BC battery charger, battery

BCA battery charging alternator BCI Battery Council International BDC before dead center BHP brake horsepower blk. black (paint color), block

blk. htr. block heater BMEP brake mean effective pressure bps bits per second br. brass BTDC before top dead center Btu British thermal unit Btu/min. British thermal units per minute C Celsius, centigrade cal. calorie CAN controller area network CARB California Air Resources Board CAT5 Category 5 (network cable) CB circuit breaker CC crank cycle cc cubic centimeter CCA cold cranking amps ccw. counterclockwise CEC Canadian Electrical Code cert. certificate, certification, certified cfh cubic feet per hour

analog to digital converter

drawing

temperature

Institute

Institute (formerly American Standards Association, ASA)

suggested

Mechanical Engineers

Materials

charging

(engine)

cfm cubic feet per minute CG center of gravity CID cubic inch displacement CL centerline cm centimeter CMOS complementary metal oxide

com communications (port) coml commercial Coml/Rec Commercial/Recreational conn. connection cont. continued CPVC chlorinated polyvinyl chloride crit. critical CSA Canadian Standards

CT current transformer Cu copper cUL Canadian Underwriter’s

CUL Canadian Underwriter’s

cu. in. cubic inch cw. clockwise CWC city water-cooled cyl. cylinder D/A digital to analog DAC digital to analog converter dB decibel dB(A) decibel (A weighted) DC direct current DCR direct current resistance deg.,  degree dept. department dia. diameter DI/EO dual inlet/end outlet DIN Deutsches Institut fur Normung

DIP dual inline package DPDT double-pole, double-throw DPST double-pole, single-throw DS disconnect switch DVR digital voltage regulator

PROM, EEPROM

E, emer. emergency (power source) ECM electronic control module,

EDI electronic data interchange EFR emergency frequency relay e.g. for example (exempli gratia) EG electronic governor EGSA Electrical Generating Systems

EIA Electronic Industries

EI/EO end inlet/end outlet EMI electromagnetic interference emiss. emission eng. engine EPA Environmental Protection

EPS emergency power system ER emergency relay ES engineering special,

ESD electrostatic discharge est. estimated E-Stop emergency stop etc. et cetera (and so forth)

substrate (semiconductor)

Association

Laboratories

e. V. (also Deutsche Industrie Normenausschuss)

electrically-erasable programmable read-only memory

engine control module

Association

Agency

engineered special

exh. exhaust ext. external F Fahrenheit, female FHM flat head machine (screw) fl. oz. fluid ounce flex. flexible freq. frequency FS full scale ft. foot, feet ft. lb. foot pounds (torque) ft./min. feet per minute ftp file transfer protocol ggram ga. gauge (meters, wire size) gal. gallon gen. generator genset generator set GFI ground fault interrupter

GND, gov. governor gph gallons per hour gpm gallons per minute gr. grade, gross GRD equipment ground gr. wt. gross weight H x W x D height by width by depth HC hex cap HCHT high cylinder head temperature HD heavy duty HET high exhaust temp., high

hex hexagon Hg mercury (element) HH hex head HHC hex head cap HP horsepower hr. hour HS heat shrink hsg. housing HVAC heating, ventilation, and air

HWT high water temperature Hz hertz (cycles per second) IBC International Building Code IC integrated circuit ID inside diameter, identification IEC International Electrotechnical

IEEE Institute of Electrical and

IMS improved motor starting in. inch in. H in. Hg inches of mercury in. lb. inch pounds Inc. incorporated ind. industrial int. internal int./ext. internal/external I/O input/output IP internet protocol ISO International Organization for

J joule JIS Japanese Industry Standard k kilo (1000) Kkelvin kA kiloampere KB kilobyte (2 kg kilogram

ground

engine temp.

conditioning

Commission

Electronics Engineers

O inches of water

Standardization

bytes)

TP-6803 6/15 Appendix 67

Page 68

kg/cm

kgm kilogram-meter kg/m

kilograms per square centimeter

kilograms per cubic meter kHz kilohertz kJ kilojoule km kilometer kOhm, k kilo-ohm kPa kilopascal kph kilometers per hour kV kilovolt kVA kilovolt ampere kVAR kilovolt ampere reactive kW kilowatt kWh kilowatt-hour kWm kilowatt mechanical kWth kilowatt-thermal L liter LAN local area network L x W x H length by width by height lb. pound, pounds

lbm/ft

pounds mass per cubic feet LCB line circuit breaker LCD liquid crystal display LED light emitting diode Lph liters per hour Lpm liters per minute LOP low oil pressure LP liquefied petroleum LPG liquefied petroleum gas LS left side L

LWL low water level

sound power level, A weighted

LWT low water temperature m meter, milli (1/1000) M mega (10

units), male

cubic meter

/hr. cubic meters per hour /min. cubic meters per minute

when used with SI

mA milliampere man. manual max. maximum MB megabyte (2

bytes) MCCB molded-case circuit breaker MCM one thousand circular mils meggar megohmmeter MHz megahertz mi. mile mil one one-thousandth of an inch min. minimum, minute misc. miscellaneous MJ megajoule mJ millijoule mm millimeter mOhm, mmilliohm MOhm, Mmegohm MOV metal oxide varistor MPa megapascal mpg miles per gallon mph miles per hour MS military standard ms millisecond m/sec. meters per second mtg. mounting MTU Motoren-und Turbinen-Union MW megawatt mW milliwatt F microfarad N, norm. normal (power source) NA not available, not applicable nat. gas natural gas NBS National Bureau of Standards

NC normally closed NEC National Electrical Code NEMA National Electrical

NFPA National Fire Protection

Manufacturers Association

Association Nm newton meter NO normally open no., nos. number, numbers NPS National Pipe, Straight NPSC National Pipe, Straight-coupling NPT National Standard taper pipe

thread per general use NPTF National Pipe, Taper-Fine NR not required, normal relay ns nanosecond OC overcrank OD outside diameter OEM original equipment

manufacturer OF overfrequency opt. option, optional OS oversize, overspeed OSHA Occupational Safety and Health

Administration OV overvoltage oz. ounce p., pp. page, pages PC personal computer PCB printed circuit board pF picofarad PF power factor ph.,  phase PHC Phillipsr head Crimptiter

(screw) PHH Phillipsr hex head (screw) PHM pan head machine (screw) PLC programmable logic control PMG permanent magnet generator pot potentiometer, potential ppm parts per million PROM programmable read-only

memory psi pounds per square inch psig pounds per square inch gauge pt. pint PTC positive temperature coefficient PTO power takeoff PVC polyvinyl chloride qt. quart, quarts qty. quantity R replacement (emergency)

power source rad. radiator, radius RAM random access memory RBUS RS-485 proprietary

communications RDO relay driver output ref. reference rem. remote Res/Coml Residential/Commercial RFI radio frequency interference RH round head RHM round head machine (screw) rly. relay rms root mean square rnd. round RO read only ROM read only memory rot. rotate, rotating rpm revolutions per minute RS right side RTDs Resistance Temperature

Detectors

RTU remote terminal unit RTV room temperature vulcanization RW read/write SAE Society of Automotive

Engineers scfm standard cubic feet per minute SCR silicon controlled rectifier s, sec. second SI Systeme international d’unites,

International System of Units SI/EO side in/end out sil. silencer SMTP simple mail transfer protocol SN serial number SNMP simple network management

protocol SPDT single-pole, double-throw SPST single-pole, single-throw spec specification specs specification(s) sq. square sq. cm square centimeter sq. in. square inch SMS short message service SS stainless steel std. standard stl. steel tach. tachometer TB terminal block TCP transmission control protocol TD time delay TDC top dead center TDEC time delay engine cooldown TDEN time delay emergency to

normal TDES time delay engine start TDNE time delay normal to

emergency TDOE time delay off to emergency TDON time delay off to normal temp. temperature term. terminal THD total harmonic distortion TIF telephone influence factor tol. tolerance turbo. turbocharger typ. typical (same in multiple

locations) UF underfrequency UHF ultrahigh frequency UIF user interface UL Underwriter’s Laboratories, Inc. UNC unified coarse thread (was NC) UNF unified fine thread (was NF) univ. universal URL uniform resource locator

(web address) US undersize, underspeed UV ultraviolet, undervoltage Vvolt VAC volts alternating current VAR voltampere reactive VDC volts direct current VFD vacuum fluorescent display VGA video graphics adapter VHF very high frequency Wwatt WCR withstand and closing rating w/ with WO write only w/o without wt. weight xfmr transformer

TP-6803 6/1568 Appendix

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Appendix B Electrical Lead Entry Template

Use the full-scale drawing in Figure 1 to mark the openings for the electrical conduit, if desired. Two 13 mm (0.5 inch) holes are also shown for the fuel regulator vent tubes, used only on 20 kW models. See Section 1.9.2 for more information.

SCALE: 1:1

Note: Dimensions are in mm.

Two 13 mm holes are needed for 20 kW models only.

Figure 1 Template, Drilled or Punched Openings for Regulator Vent Tubes (20 kW only) and Electrical Conduit

TP-6803 6/15 Appendix 69

GM78090-B

Page 70

Notes

TP-6803 6/1570 Appendix

Page 71

Page 72

TP-6803 6/15l

KOHLER CO. Kohler, Wisconsin 53044 Phone 920-457-4441, Fax 920-459-1646

Kohler Power Systems Asia Pacific Headquarters 7 Jurong Pier Road Singapore 619159 Phone (65) 6264-6422, Fax (65) 6264-6455

For the nearest KOHLER auth orized installation, service, and sales d ealer in the US and Canada: Call 1-800-544-2444 or visit KOHLERPower.com

Kohler 14RESAL, 14RESA, 20RESCL, 20RESC, 20RESA Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual