Kohler 12RESV, 8RESV, 10RESV, 12RESVL, RDC2 Installation Manual

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Installation

Residential/Commercial Generator Sets

Models:

8/10/12RESV

8/10/12RESVL

Controllers:

RDC2

DC2

TP-6984 5/17a

California Proposition 65

WARNING

This product contains and/or emits 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

WARNING

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

Engine Identification

Record the product identification information from the engine nameplate.

Manufacturer

Model Designation

Serial Number

Accessory Number Accessory Description

Controller Identification

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

Controller Description

Table of Contents

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 12................................................................

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

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

1.4.1 Mounting Area 13................................................

1.4.2 Exhaust Requirements 13.........................................

1.5 Dimension Drawings 14...................................................

1.6 Access the Air Intake Area 14..............................................

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 16.....................................

1.8 Fuel Conversion 17.......................................................

1.9 Electrical Connections 19..................................................

1.9.1 Grounding 20....................................................

1.9.2 Electrical Lead Entry 20...........................................

1.9.3 Field-Connection Terminal Block 20.................................

1.9.4 AC Power Supply 21..............................................

1.10 ATS and Accessory Connections 22........................................

1.10.1 Transfer Switch Connection 22.....................................

1.10.2 Communication Cable Specifications 24.............................

1.10.3 System Connections with Accessory Modules 25.....................

1.11 Battery 28...............................................................

1.12 Prestart Installation Check 29..............................................

1.13 Set the Exerciser 30......................................................

1.13.1 RDC2 Controller 30...............................................

1.13.2 DC2 Controller 30................................................

1.13.3 Loaded Exercise 30...............................................

1.14 Operation Test 30........................................................

1.15 OnCue Plus Generator Management System 31..............................

Section 2 Accessories 33.....................................................................

2.1 Introduction 33...........................................................

2.2 Connect Optional Programmable Interface Module (PIM) 33...................

2.3 Load Management 34.....................................................

2.4 Carburetor Heater 35.....................................................

Section 3 Drawings and Diagrams 37..........................................................

Appendix A Abbreviations 43................................................................

TP-6984 5/17a Table of Contents 3

Notes

TP-6984 5/17a4

Safety Precautions and Instructions

IMPORTANT SAFETY 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 i njury, 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-6984 5/17a 5Safety Precautions and Instructions

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-6984 5/17a6 Safety Precautions and Instructions

Fuel System

Hazardous Noise

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 operate the 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.

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.

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.

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

TP-6984 5/17a 7Safety Precautions and Instructions

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.

Hot Parts

WARNING

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

Do not work on the generator set until it cools.

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.

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.

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.

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-6984 5/17a8 Safety Precautions and Instructions

Introduction

This manual provides installation instructions for Model 8/10/12RESV or 8/10/12RESVL generator sets. See Figure 1. Refer to TP-6880, 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.

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 all procedures and safety precautions to ensure proper equipment operation and to avoid bodily injury. Read and follow the 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

Spec Sheet, 8RESV G4--252

Spec Sheet, 8RESVL G4--253

Spec Sheet, 10/12RESV G4--254

Spec Sheet, 10/12RESVL G4--255

Operation Manual, Generator Set TP-6880

Operation/Installation Manual, Model RXT Automatic Transfer Switch

Operation Manual, OnCuer Plus Software

Operation Manual, SiteTecht Software

Operation/Installation Manual, Model RDT Transfer Switch

Installation Instructions, Programmable Interface Module (PIM)

Installation Instructions, Load Shed Kit TT-1609

Installation Instructions, USB Utility TT-1636

Figure 2 Related Literature

TP-6807

TP-6928

TP-6701

TP-6345

TT-1584

Figure 1 Model RESV Generator Set

Startup and Registration

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

TP-6984 5/17a 9

Service Assistance

For professional advice on generator set power requirements and conscientious service, please contact 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, call the 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

TP-6984 5/17a10

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.

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.

Have the generator set installed b y an authorized Kohler distributor/dealer or authorized representative. Install the equipment in compliance with the National Electrical Code (NEC) and local codes. For Canadian installations, refer to the Canadian Electrical Code (CEC).

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

TP-6984 5/17a 11Section 1 Installation

1.2 Lifting

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.

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.

Model Weight, kg (lb.)

8RESV/RESVL 170 (375) 10RESV/RESVL 194 (428) 12RESV/RESVL 196 (433)

Figure 1-1 Approximate Shipping Weights

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-6880, 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 from a structure is dependent on state 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, or 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.

Note: The reduced minimum clearance from a structure

contained in ADV--8774 only applies to generators that are compliant with clause (2) of section 4.1.4 of NFPA 37. To verify that the generator is compliant, check the Specification Number located on the generator name plate. See Figure 1-2. If the name plate displays one of the following specification numbers, then the generator is compliant with clause (2) of section

4.1.4 of NFPA 37 and the reduced clearance in ADV--8774 (Figure 3-5) will apply.

D 8RESV: GM88347--GA7 or higher

D 8RESVL: GM88347--GA10 or higher

D 10RESV: GM88347--GA8 or higher

D 10RESVL: GM88347--GA11 or higher

D 12RESV: GM88347--GA9 or higher

D 12RESVL: GM88347--GA12 or higher

Note: If the generator set name plate does not

display one of the specification numbers set forth above, refer to ADV-8539in installation manual TP--6879 for the minimum clearance from a structure.

TP-6984 5/17a12 Section 1 Installation

1.4.2 Exhaust Requirements

8RESV-SA1

GM88347-GA7

XXXXXXXX

Amps

Phase

RPM

3600

Battery

12V

NAT GAS

Fuel

7.00

kVA

1.0

1. Specification Number

Genset Model

Spec Number

Serial Number

Material Number

Service Duty

STANDBY

Voltage

240

Alt Model

2F3

Insulation

07/31/2015

MFG Date

Figure 1-2 Name Plate

1.4.1 Mounting Area

The generator set is shipped on a wooden pallet. Remove the wooden pallet before positioning the generator set. Prepare a flat, level mounting area covered with a weed barrier and gravel or a concrete mounting pad. Set the generator set directly on the gravel or concrete.

Note: When installing a concrete mounting pad, the

generator set must be secured to the mounting pad to prevent shifting or movement caused by engine vibration. For mounting pads GM92228-KP1-QS and GM92228-KP2-QS, use the screw inserts in the mounting pad to secure the generator set. See TT--1619 for concrete mounting pad installation instructions.

Do not install the generator set 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.

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.

Figure 1-3 gives the exhaust temperature at rated load. 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 Model

Exhaust gas exiting the

8RESV(L) 190 (374)

enclosure at rated kW, _C(_F)

10/12RESV(L) 106 (224)

Figure 1-3 Exhaust Flow and Temperature

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 1-4 shows the locations of the cooling air intake and exhaust vents. Inspect the air inlet and outlet openings inside and outside the housing to ensure that the air flow is not blocked.

_C(_F)

1. Air intake

2. Exhaust outlet

FRONT VIEW

Figure 1-4 Cooling Air Intake and Exhaust

TP-6984 5/17a 13Section 1 Installation

tp6879

1.5 Dimension Drawings

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

1.6 Access the Air Intake Area

1.7 Fuel Requirements

WARNING

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

Note: Ensure that the battery is positioned toward the

front of the generator so it does not block the alternator air intake vent. See Figure 1-5.

1. Remove panel screws and remove the panel. Pull the panel up and off. See Figure 1-5.

2. To make the electrical connections, you will also need to remove the cover panel over the terminal block.

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

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 operate the 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.

1. Panel screws

2. Left side panel

3. Electrical cover panel

4. Alternator air intake vent

Figure 1-5 Remove Left Panel

GM80110

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.

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 comply with applicable national, state, and local codes.

TP-6984 5/17a14 Section 1 Installation

1.7.1 Fuel Supply

Verify that the output pressure from the primary gas utility pressure regulator is as shown in Figure 1-6 and

Because of variable climates and geographical considerations, contact the local fuel supplier for fuel system planning and installation. Figure 1-6 lists the recommended fuel ratings and other fuel supply information for natural gas and LPG fuels.

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 1-6. See Figure 1-9 for fuel consumption. Contact the fuel supplier for flow rate information or a gas meter

Natural

Gas

0.87--2.7 (3.5-11)

LPG

1.7--2.7 (7-11)

Fuel type

Fuel supply inlet 1/2 NPT

Fuel supply pressure, kPa (in. H

Fuel flow rate, maximum, Btu/hr.:

8RESV/RESVL 99,200 160,800

10RESV/RESVL 179,000 222,500

12RESV/RESVL 216,000 257,500

Nominal Fuel Rating, Btu/ft.

Natural gas 1000

LPG 2500

upgrade, if necessary.

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.

Figure 1-6 Fuel Supply

Minimum Gas Pipe Size Recommendation, in. NPT

8RESV/RESVL 10RESV/RESVL 12RESV/RESVL

Pipe Length,

m (ft.)

8 (25) 1/2 3/4 3/4 3/4 3/4 3/4

15 (50) 3/4 3/4 1 3/4 1 1

30 (100) 1 3/4 1 1 11/4 1

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

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

Natural Gas

(99,200 Btu/hr.)

LPG

(160,800 Btu/hr.)

Natural Gas

(179,000 Btu/hr.)

LPG

(222,500 Btu/hr.)

Natural Gas

(216,000 Btu/hr.)

(257,500 Btu/hr.)

Figure 1-7 Fuel Pipe Size Recommendations

LPG

TP-6984 5/17a 15Section 1 Installation

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 a section of flexible fuel line. Use flexible sections to 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.

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

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

Note: Do not hold the fuel solenoid valve coil when

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

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.

8RESV/RESVL 10RESV/RESVL 12RESV/RESVL

Fuel Type % Load

100% 3.9 (136) 5.1 (179) 6.1 (216)

Natural Gas

LPG

LPG conversion factors:

8.58 ft.

0.535 m

36.39 ft.

=1lb.

=1kg

= 1 gal.

75% 2.7 (95) 4.1 (145) 4.5 (160)

50% 2.0 (69) 3.4 (120) 3.6 (128)

25% 1.5 (53) 2.7 (97) 2.8 (99)

100% 1.7 (59) 2.5 (89) 2.9 (103)

75% 1.3 (45) 2.0 (69) 2.2 (76)

50% 1.0 (36) 1.5 (52) 1.6 (57)

25% .75 (26) 1.1 (39) 1.2 (42)

Nominal fuel rating:

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

60 Hz 60 Hz 60 Hz

Figure 1-9 Fuel Consumption

1. Hold valve with wrench on flats of valve body

2. Alternate wrench location

Note: Do NOT hold the valve coil when tightening connections.

Figure 1-8 Holding Fuel Valve to Tighten Fuel

Connections

Fuel Consumption, m3/hr. (cfh)

(1000 Btu/ft.3)

(2500 Btu/ft.3)

TP-6984 5/17a16 Section 1 Installation

1.8 Fuel Conversion

The multi-fuel system allows conversion from natural gas (NG) 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.

WARNING

Use the following procedure to convert the fuel system. The procedure includes removing the side panel, removing the cap from the fuel selector valve, and making the fuel selection.

See Figure 1-10 for fuel system components.

Accidental starting. Can cause severe injury or death.

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.

WARNING

1. Gas shutoff valve

2. Gas regulator

3. Selector valve cap

4. Selector valve

Figure 1-10 Fuel System

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.

5. Remove panel screws and remove the left side louvered panel. Figure 1-11.

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Explosive fuel vapors. Can cause severe injury or death.

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

Fuel Conversion Procedure

The fuel selector valve allows field-conversion between natural gas (NG) and LPG. The valve is factory-set to comply with applicable emission standards and to provide the best possible hot and cold starting.

Note: Do not adjust the factory-set screw on the

selector valve. Adjusting the screw may violate

federal and state laws. See Figure 1-14.

1. Panel screws

2. Left side panel

3. Fuel system. See Figure 1-10 for details.

Figure 1-11 Remove Left Panel

TP-6984 5/17a 17Section 1 Installation

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6. Remove the cap from the fuel selector valve. See Figure 1-12. Insert a flat head screwdriver under the lip of the cap and push it upwards. Keep the cap close by as it is needed to switch fuels in the next step.

1. Fuel selector cap

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Figure 1-12 Cap Removal

7. See Figure 1-13. Use the cap in the orientation shown to turn the selector valve to NG or LP. See Figure 1-14 for valve positions.

1. Fully left for LPG

2. Fully right for NG

3. Factory-set screw (Do not adjust!)

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Figure 1-14 Valve Positions

8. Replace the cap.

9. Connect and turn on the fuel supply (ensure that the fuel supply matches the fuel setting).

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

11. Reconnect power to the battery charger.

12. Reassemble the left side panel.

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

1. Turn selector valve

Figure 1-13 Fuel Selection

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14. Check for leaks using a gas leak detector.

15. Run the generator set and check the operation.

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

Rating

Converting the fuel will change the generator set rating. See the generator set specification sheet for ratings with natural gas and LPG. When converting to LPG from factory settings, 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:

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

TP-6984 5/17a18 Section 1 Installation

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 Tem p . Rating 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

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-6984 5/17a 19Section 1 Installation

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 ground to the generator set ground lug, terminal GND inside the controller compartment.

The requirement for having a bonded (grounded) neutral or ungrounded 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 set will operate properly with the neutral either bonded to ground or isolated from ground at the generator.

Note: When shipped, the generator neutral is not

bonded (grounded) to the generator ground.

Various regulations and site 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.

1.9.2 Electrical Lead Entry

The generator set is equipped with a field-connection terminal block located in the air inlet area inside 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 terminal block location. Remove the cover panel for access to the field connections.

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1. Electrical cover panel

Drill or punch holes in the enclosure for the electrical conduit in the locations shown in Figure 1-16.

1. 1/2 NPT female fuel inlet

2. Utility voltage electrical lead entry point

3. ATS signal electrical lead entry point

ADV--8539

Figure 1-17 Field-Connection Terminal Block

Location

See Figure 1-18 for terminal block details. Refer to the terminal block decal 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 service areas. Route low-voltage communication leads through separate conduit.

Figure 1-16 Electrical Lead Entry Locations

TP-6984 5/17a20 Section 1 Installation

Procedure

1. Drill holes for the conduit fittings. See Figure 1-16 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 and L2 connections on the generator set terminal block.

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 utility power leads to the terminal block connections labelled UTILITY. Connect to a circuit that is supplied by the utility source and backed up by the generator. See Section 1.9.4 for more information about the utility power requirement.

5. For connection of optional transfer switches, the programmable interface module (PIM), and/or a load shed kit, see Section 1.10.

6. To connect the OnCuer Plus Generator Management System to your generator, run 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.

1. Ground connection for communication cable shield.

2. Low voltage communication and engine start connections

3. AC power connections

4. Ethernet cable for OnCue Plus connection

5. AC load connections

GM88354

Figure 1-18 Electrical Connections

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 AC load leads. If the network cable is longer than 100 meters (328 ft.), use a repeater or switch.

b. Test the internet connection for the generator

by connecting a laptop to the network cable.

(1) 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.

(3) Verify the Internet connection by opening

your web browser and going to www.kohlerpower.com or any known website.

(4) Disconnect the network cable from the

laptop.

c. 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.

1.9.4 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 1-19. The power source must comply with state and local codes. The power to the battery charger and accessories must be backed up by the generator so that power is available at all times.

Be sure to disconnect power at the distribution panel before making the connections. Connect power leads to the utility power connection points on the terminal block. See Section 1.9.3 and the wiring diagrams in Section 3 for connection details.

Power Requirement, Max.

Equipment

Battery charger (standard)

Carburetor heater *

* Optional accessory

Figure 1-19 Power Requirements

Watts Amps Volts

50 0.4

37 0.3

100--250 VAC

50/60 Hz

120 VAC 50/60 Hz

TP-6984 5/17a 21Section 1 Installation

1.10 ATS and Accessory Connections

WARNING

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.

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.

The following sections cover electrical connections of the automatic transfer switches and RBUS accessories, including the programmable interface module ( PIM), or the load shed kit.

Note: Load shed kits are not available when combined

with the transfer switch supplied with models 8RESVL, 10RESVL, 12RESVL.

Generator Set

GND

Note: Do not use the Kohlerr Model RRT transfer

switch with the RESV or RESVL generator set.

Communication connections for a Kohlerr Model RXT transfer switch

One Model RXT transfer switch can be connected to the generator set. See Figure 1-20. Use shielded, twisted-pair communication cable to connect P10-1 through P10-4 on the transfer switch interface module to the generator set terminal block connections A, B, PWR, and COM.

The Model RXT transfer switch with the combined interface/load management board requires one set of RBUS connections to the generator set. However, the combined board acts as two RBUS modules: one RXT transfer switch and one load management device.

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

used with the Model RXT transfer switch.

COM

PWR

Interface Board on the Model RXT Transfer Switch

PWR

COM

RXT

12 VDC

RBUS

COM

PWR

TB3

Note: Generator set terminal block (TB3) connections 3 and 4 are NOT USED with the Model RXT ATS.

1. Generator set terminal block TB3. See Figure 3-5 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. Section 1.10.2

4. Leave one end of each cable shield disconnected.

Figure 1-20 Model RXT Transfer Switch Communication Connection to Generator Set Terminal Block

TP-6984 5/17a22 Section 1 Installation

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

Connect the engine start leads from the transfer switch

terminal block. See Figure 1-21. Route the engine start leads through separate conduit from the AC power and load leads.

or remote start switch to terminals 3 and 4 on the

Generator Set ATS

(with engine

start contacts)

COM

PWR

TB3

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.

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Figure 1-21 Engine Start Connections with Transfer Switch Models other than Model RXT

TP-6984 5/17a 23Section 1 Installation

1.10.2 Communication Cable Specifications

PWR and COM Connections

For the PWR and COM connections from the generator set to the RXT, PIM and/or load shed kit, use the second

RBUS Connections A and B

For the RBUS communication connections A and B to the Model RXT transfer switch, optional PIM and/or optional load shed kit, use 20 AWG shielded, twisted-pair communication cable. Belden #9402 (two-pair) or Belden #8762 (single-pair) or equivalent cable is recommended.

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.

pair in the two-pair communication cable for short runs, or use 12--14 AWG cable for longer runs as shown in Figure 1-22.

The maximum cable length depends on the number of optional modules connected. A module can be a Model RXT transfer switch, a load management device, or a programmable interface module (PIM). See Figure 1-22 for the maximum cable lengths for 1, 2, or 3 modules per cable run. Note the shield connections shown in Figure 1-24.

Note: A model RXT transfer switch with combined

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

Note: Power relay modules, if used, are not RBUS

modules and do not have RBUS communication connections.

Maximum length per run, meters (ft.)

Indoor or

Outdoor In-

Cable Size for PWR and COM Connections

20 AWG Belden #9402 or equivalent, two-pair Indoor 61 (200) 31 (100) 21 (67)

20 AWG Belden #1075A or equivalent, two-pair Outdoor 61 (200) 31 (100) 21 (67)

14 AWG * — 152 (500) 152 (500) 122 (400)

12 AWG * — 152 (500) 152 (500) 152 (500)

* 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 in Section 1.10.2.

stallation

Number of Modules (ATS, PIM, or Load Shed Kit)

per Run

1 Module 2 Modules 3 Modules

Figure 1-22 Total Cable Lengths for PWR and COM Connections

TP-6984 5/17a24 Section 1 Installation

1.10.3 System Connections with Accessory Modules

programmable interface module (PIM) and one load shed kit.

See Figure 1-24 through Figure 1-26 for connection options with accessory modules. Accessory modules can include one Model RXT transfer switch, one

Generator Set

12 VDC

RBUS

GND

COM

PWR

TB3

COM

PWR

See Figure 1-22 for the maximum total cable length with 1, 2, or 3 accessory modules per cable run.

Load Shed Kit

PWR

COM

PWR

COM

RXT*

PWR

COM

PIM

Note: See Section 1.10.2, Cable Specifications for

maximum cable lengths.

* RXT transfer switch with standard or combined interface/load

management board. Do not use a load shed kit with a

PWR

COM

combined interface board.

1. Customer connection terminal block. See Figure 1-18 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. See Figure 1-22 for cable specifications, including maximum total cable length per run (1 run shown).

4. Connect shields together as shown.

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

PWR

COM

Figure 1-23 Accessory Module Communication Connection Details

TP-6984 5/17a 25Section 1 Installation

GND

Generator Set

12 VDC

RBUS

COM

PWR

TB3

COM

PWR

Load Shed Kit

PWR

COM

COMA PWRB

RXT*

PWR

COM

PWR

COM

PIM

Note: See Section 1.10.2, Cable Specifications for

maximum cable lengths.

* RXT transfer switch with standard or combined interface/load

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

PWR

COM

1. Generator set terminal block. See Figure 3-5 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 1-24 Accessory Module Communication Connection Details

TP-6984 5/17a26 Section 1 Installation

Generator Set

12 VDC

RBUS

1. Generator Set Terminal Block TB3. See Figure 3-5 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.

COM

PWR

TB3

COM PWR

B A

COM PWR

9402 CABLE

Figure 1-25 Multiple Connections to the Generator Set

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Generator Set

Terminal

Block

Notes:

Load Shed Kit

RXT ATS

D See Figure 3-6 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

D Use splices or wire nuts to collect multiple leads for

connection to the generator set terminal block. See Figure 1-25.

Figure 1-26 Accessory Module Connections (two cable runs with one and two modules shown)

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TP-6984 5/17a 27Section 1 Installation

1.11 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 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.

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.

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 1-27 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.

TP-6984 5/17a28 Section 1 Installation

1.12 Prestart Installation Check

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.

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

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

EZ-273000-J

Figure 1-27 Typical Battery Connection

Use the following procedure to install and connect the battery.

Battery Installation Procedure

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.

Note: Ensure that the battery is positioned toward

the front of the generator so it does not block the alternator air intake vent. See Figure 1-5.

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.

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 or broken metal parts and replace

them as needed.

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 is applied 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 or replacement, the exercise settings on the RDC2/DC2 controller are lost. Set the exerciser after installing and connecting the battery. See Section 1.13, Set Exerciser.

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-6984 5/17a 29Section 1 Installation

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 unloaded and loaded exercise operation.

Note: Your generator will use either the RDC2 (RESV

models) or the DC2 (RESVL models) controller.

Determine which controller your generator set uses and follow the directions to set that specific controller. See Figure 1-28.

RDC2 (RESV) DC2 (RESVL)

Figure 1-28 Controller Identification

1.13.1 RDC2 Controller

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 exercise on 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.

1.14 Operation Test

WARNING

When power is applied 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.

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.

tp6803

Figure 1-29 Set Time, Date, and Exercise (RDC2)

Hazardous voltage. Can cause severe injury or death.

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

Moving parts.

1. Verify that all guards and enclosure panels are in place.

2. Check the items in the Prestart Checklist in Section 1.12.

3. Press the RUN button on the generator set controller to start the generator set. Verify that the engine starts and runs.

4. Use a digital voltmeter (DVM) to check the output voltage (line to line and line to neutral) from the generator set. If voltage calibration is required, refer voltage calibration instructions in the service manual.

5. Press OFF to stop the engine. Then press AUTO on the RDC2 controller.

6. Verify that the enclosure door is closed and that the panels are installed. Lock the enclosure to prevent unauthorized access.

TP-6984 5/17a30 Section 1 Installation

1.15 OnCue Plus Generator Management System

The OnCuer Plus Generator Management System is included with the 8RESV(L), 10RESV(L), and 12RESV(L) and 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. See G18-247, Quick Start Guide and TP--6928, OnCue Plus Operation Manual, for instructions.

To use OnCue Plus, you must have the following minimum requirements for connecting your generator to the Internet:

D “Always-on” Internet service for generator set

connection (for example, cable, DSL, or phone line modem connected 24 hours)

D Unused Ethernet port on a switch, router,or modem

D An uninterruptible power supply (UPS) for the modem

and router is recommended.

D 5E customer-supplied network cable for connection

of the generator set to the customer’s Ethernet router (see installation instructions in Section 1.9.3)

D USB cable, male USB A to male mini-B, for updating

the controller firmware.

For instructions on connecting the network cables to the generator set, see instructions in Section 1.9.3.

TP-6984 5/17a 31Section 1 Installation

Notes

TP-6984 5/17a32 Section 1 Installation

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 electrical interference. Verify that 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 Connect Optional 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 Kohler SiteTechr software. See TP-6701, SiteTech Software Operation Manual, for instructions.

Kohler OnCuer Plus can be used to actively control PIM 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 (Program-

mable)

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

Output 5 (Relay 5) Cooldown (Programmable)

Output 6 (Relay 6) Normal Source Failure (Program-

mable)

Figure 2-2 PIM Inputs and Outputs

TP-6984 5/17a 33Section 2 Accessories

2.3 Load Management

On models 8RESV, 10RESV, and 12RESV,two optional load management devices are available for use when combined with a model RXT and 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.

system installation complies with all applicable state and local codes.

For detailed installation and connection instructions, see TT-1609, provided with the load shed kit, or TP-6807, Operation/Installation Manual for the Model RXT transfer switch with combined interface/load management board.

Note: Load shed kits are not available with the transfer

switch supplied with models 8RESVL, 10RESVL, 12RESVL.

The devices provide an automatic load management system to comply with Section 702.5 of NEC 2008.

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 management device automatically manages up to six residential loads.

D Two relays are included to control two independent

heating, ventilation, and air conditioning (HVAC) loads.

D Up to four power relays (or load management

modules) can be connected through normally open relay contacts on the circuit board. Load management modules are available separately.

Load management modules include one power relay mounted inside a NEMA type 3 R enclosure. Connectup to four (4) load management modules to the load management devices listed above.

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 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 VACloads (shed simultaneously) or a single 240 VAC load can be wired to each relay.

For detailed installation and connection instructions, see TT-1646, provided with the power relay module kit.

The load management device 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.

Note: Connect only non-essential loads to the load

shed kit.

An adequate electrical supply is r equired 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. The installer is responsible for ensuring that the power

Figure 2-4 Power Relay Module

TP-6984 5/17a34 Section 2 Accessories

2.4 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

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.

An optional carburetor heater is recommended for improved cold starting in locations where the ambient temperature drops below 0_C(32_F). The carburetor heater prevents condensation and carburetor icing. The heater 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 heater is shown in Figure 2-6.

To install the carburetor heater, follow the instructions provided with the kit. Figure 2-7 shows the installed carburetor heater kit.

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.

1. Power plug

2. Thermostat

3. Heater

Figure 2-6 Carburetor Heater

8RESV(L)

GM57968

The heater thermostat is installed in the cord. Figure 2-6 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.

The heater requires a continuous source of power. Plug the carburetor heater into the 120 VAC receptacle provided.

Kit Number 120 Volt Kits

Voltage 120 VAC

Thermostat ON

Thermostat OFF

Figure 2-5 Carburetor Heater Specifications

50/60 Hz

4 ± 4_C(40± 7_F)

16 ± 3_C(60± 5_F)

10/12RESV(L)

1. Carburetor heater

2. Carburetor heater power cord

Figure 2-7 Carburetor Heater Location

TP-6984 5/17a 35Section 2 Accessories

GM57969

Notes

TP-6984 5/17a36 Section 2 Accessories

Figure 3-2 lists the wiring diagram numbers and page numbers.

Section 3 Drawings and D iagrams

Note: The reduced minimum clearance from a structure

contained in ADV--8774 only applies to generators that are compliant with clause (2) of section 4.1.4 of NFPA 37. To verify that the generator is compliant, check the Specification Number located on the generator name plate. See Figure 3-1. If the name plate displays one of the following specification numbers, then the generator is compliant with clause (2) of section

4.1.4 of NFPA 37 and the reduced clearance in ADV--8774 (Figure 3-5) will apply.

D 8RESV: GM88347--GA7 or higher

D 8RESVL: GM88347--GA10 or higher

D 10RESV: GM88347--GA8 or higher

D 10RESVL: GM88347--GA11 or higher

D 12RESV: GM88347--GA9 or higher

D 12RESVL: GM88347--GA12 or higher

Note: If the generator set name plate does not

display one of the specification numbers set forth above, refer to ADV-8539in installation manual TP--6879 for the minimum clearance from a structure.

Genset Model

Spec Number

Serial Number

Material Number

Service Duty

MFG Date

1. Spec number

Figure 3-1 Name Plate

Voltage

Alt Model

Insulation

STANDBY

240

2F3

07/31/2015

8RESV-SA1

GM88347-GA7

XXXXXXXX

Amps

Phase

RPM

3600

Battery

12V

NAT GAS

Fuel

7.00

kVA

1.0

Dimension Drawing Drawing Number Page

Dimension Drawing ADV--8774, Sheet 1 38

ADV--8774, Sheet 2 39

ADV--8774, Sheet 3 40

Wiring Diagram Description Drawing Number Page

Schematic Diagram ADV--8552 41

Point-to-Point Wiring Diagram GM89012 42

Figure 3-2 Wiring Diagrams and Schematics

TP-6984 5/17a 37Section 3 Drawings and Diagrams

Figure 3-3 Dimension Drawing ADV-8774, Sheet 1

TP-6984 5/17a38 Section 3 Drawings and Diagrams

Figure 3-4 Dimension Drawing ADV-8774, Sheet 2

TP-6984 5/17a 39Section 3 Drawings and Diagrams

Figure 3-5 Dimension Drawing ADV-8774, Sheet 3

TP-6984 5/17a40 Section 3 Drawings and Diagrams

Figure 3-6 Schematic Diagram, ADV-8552

TP-6984 5/17a 41Section 3 Drawings and Diagrams

Figure 3-7 Point-to-Point Wiring Diagram, GM89012

TP-6984 5/17a42 Section 3 Drawings and Diagrams

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 KBus Kohler communication protocol kg kilogram

ground

engine temp.

conditioning

Commission

Electronics Engineers

O inches of water

Standardization

bytes)

TP-6984 5/17a Appendix 43

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-6984 5/17a44 Appendix

TP-6984 5/17a

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 authorized installation, service, and sales dealer in the US and Canada: Call 1-800-544-2444 or visit KOHLERPower.com

Kohler 12RESV, 8RESV, 10RESV, 12RESVL, RDC2 Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual