Kohler 12RESM1 User's Manual

Installation Residential/Commercial Generator Sets Models: 12RESM1 12/17/18RESL 12/17/18RESNT 12/18RESHD Controller: DC-RET Digital Control TP-6516 4/09d 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. Product Identification Information Generator Set Identification Numbers Engine Identification Record the product identification numbers from the generator set nameplate(s). Record the product identification information from the engine nameplate. Model Designation Specification Number Serial Number 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 Product Identification Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Safety Precautions and Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Service Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Section 1 Installation 1.1 1.2 1.3 1.4 ...................................................................... General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Generator Set Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Location and Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.1 Exhaust Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.2 Air Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6 Fuel Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6.1 Fuel Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6.2 Fuel Pipe Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.7 Fuel Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.7.1 Fuel Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8.1 AC Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8.2 Remote Start Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8.3 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8.4 Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.9 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.10 Carburetor Heater (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.11 Prestart Installation Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.12 Startup Notification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 13 13 13 13 18 18 18 19 19 20 20 20 22 22 23 23 23 24 26 27 27 Section 2 Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Appendix A Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TP-6516 4/09 35 Table of Contents 3 Notes 4 TP-6516 4/09 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. 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. DANGER Danger indicates the presence of a hazard that will cause severe personal injury, death, or substantial 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. Disabling the generator set. Accidental starting can cause severe injury or death. Before working on the generator set or connected equipment, disable the generator set as follows: (1) Move the generator set master switch to the OFF position. (2) Disconnect the power to the battery charger. (3) Remove the battery cables, negative (--) lead first. Reconnect the negative (--) lead last when reconnecting the battery. Follow these precautions to prevent starting of the generator set by an automatic transfer switch, remote start/stop switch, or engine start command from a remote computer. Battery 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. TP-6516 4/09 WARNING 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. Sulfuric acid in batteries. Can cause severe injury or death. Wear protective goggles and clothing. Battery acid may cause blindness and burn skin. Safety Precautions and Instructions 5 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 Fire. Can cause severe injury or death. Do not smoke or permit flames or sparks near fuels or the fuel system. 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 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. Fuel System WARNING Carbon monoxide. Can cause severe fainting, or death. nausea, 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. Explosive fuel vapors. Can cause severe injury or death. Use extreme care when handling, storing, and using fuels. Gas fuel leaks. Explosive fuel vapors can cause severe injury or death. Fuel leakage can cause an explosion. Check the LP vapor gas 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. Servicing the air cleaner. A sudden backfire can cause severe injury or death. Do not operate the generator set with the air cleaner removed. 6 Safety Precautions and Instructions TP-6516 4/09 Hazardous Noise CAUTION 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 WARNING Hazardous voltage. Moving parts. Can cause severe injury or death. Operate the generator set only when all guards and electrical enclosures are in place. WARNING Hazardous voltage. Backfeed to the utility system can cause property damage, severe injury, or death. 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. 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. WARNING Airborne particles. Can cause severe blindness. injury or Wear protective goggles and clothing when using power tools, hand tools, or compressed air. 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. 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. TP-6516 4/09 Safety Precautions and Instructions 7 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. 8 Safety Precautions and Instructions TP-6516 4/09 Introduction This manual provides installation instructions for 12, 17, and 18 kW residential/commercial generator sets equipped with the Kohlerr DC-RET Digital Control. Refer to TP-6517, Operation Manual, for generator set operation and maintenance instructions. 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. The generator set is approved for use in stationary applications in locations served by a reliable utility power source. 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. Have an 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. 1 2 3 4 5 6 See Figure 1 or Figure 2 for generator set component locations. 17 7 18 19 See 20 Detail 21 16 8 22 9 10 15 23 24 ADV-7466- 14 13 12 11 19 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Muffler Oil check Oil fill Air cleaner Fuses RS-232 connector (for application program updates) Controller user interface Generator set master switch (RUN-OFF/RESET-AUTO) Load circuit breaker Field-connection terminal block location Spark plug locations (both sides) Oil drain hose Oil drain valve Figure 1 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. Oil filter Exhaust Equipment ground Battery charger DSAI lead location LP fuel orifice location Gas regulator assembly Fuel solenoid valve Fuel inlet Air intake Engine starting battery location (battery purchased separately) Fuel system detail Generator Set Component Locations, 12 kW Models TP-6516 4/09 9 8 Control detail, top view 12 9 11 10 1 2 3 4 5 6 7 See control detail 18 19 20 21 22 26 25 23 17 ADV-7341A-B 16 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Muffler Oil check Oil fill Air cleaner Spark plug locations (both sides) Oil filter Oil cooler location DC-RET Digital Control display Generator set master switch (RUN-OFF/RESET-AUTO) Line circuit breaker Fuses RS-232 connector (for application program updates) Engine starting battery location (battery purchased separately) Figure 2 10 15 14 13 24 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. Oil drain hose Nameplate location (on base) Oil drain valve Exhaust outlet Field-connection terminal block location LP fuel orifice location (inside hose fitting) Gas regulator assembly DSAI leads Fuel inlet Air intake Battery cables Battery charger 120 VAC receptacle for battery charger Generator Set Component Locations, 17/18 kW Models TP-6516 4/09 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 stickers 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 3 rue de Brennus 93200 Saint Denis France Phone: (33) 1 49 178300 Fax: (33) 1 49 178301 TP-6516 4/09 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 11 Notes 12 TP-6516 4/09 Section 1 Installation 1.1 General 1.3 Generator Set Inspection Have an 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. Complete a thorough inspection of the generator set. Check for the following: Use the generator set and transfer switch dimension drawings and wiring diagrams for installation. 1.2 Lifting 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-6517, Operation Manual, for additional information. WARNING 1.4 Location and Mounting 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 Figure 1-2 or Figure 1-4 for lifting hole locations. Model Weight, kg (lb.) 12 kW 186 (410) 17/18 kW 227 (500) Figure 1-1 TP-6516 4/09 See Figure 1-2 (12 kW) or Figure 1-4 (17/18 kW) for the generator set dimensions and fuel and electric inlet locations. The drawing dimensions are shown in millimeters, with inches in brackets. Install the generator set outdoors. Provide the minimum clearance around the generator set shown in Figure 1-3 or Figure 1-5. Locate the generator set so that the hot exhaust does not blow on plants or other combustible materials. Do not install the generator set where exhaust gas could accumulate and seep inside or be drawn into a potentially occupied building. The generator set is shipped on a plastic mounting pad. Prepare a flat, level mounting area covered with a weed barrier and gravel as shown in Figure 1-5. Set the plastic mounting pad directly on the gravel. Do not install the mounting pad directly on grass. Approximate Weights Section 1 Installation 13 Note: Fuel system may differ from drawing. See Section 1.7. Figure 1-2 14 Generator Set Mounting Details and Dimensions, 12 kW Models, ADV-7466, Sheet 1 Section 1 Installation TP-6516 4/09 Figure 1-3 TP-6516 4/09 Generator Set Clearances, 12 kW Models, ADV-7466, Sheet 2 Section 1 Installation 15 Figure 1-4 16 Generator Set Mounting Details and Dimensions, 17/18 kW Models, ADV-7341-B, Sheet 1 Section 1 Installation TP-6516 4/09 Figure 1-5 TP-6516 4/09 Generator Set Clearances, 17/18 kW Models, ADV-7341-B, Sheet 2 Section 1 Installation 17 1.4.1 Exhaust Requirements 3 WARNING Carbon monoxide. Can cause severe fainting, or death. 1 nausea, 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. The exhaust system is complete for generator sets installed outdoors. Do not install this generator set indoors. Figure 1-6 gives the exhaust flow and 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 Figure 1-5. Exhaust System 60 Hz Exhaust flow at rated kW, m3/min. (cfm) 12 kW 3.8 (135) 17/18 kW 5.3 (187) Exhaust gas temperature exiting the enclosure at rated kW, _C (_F) Figure 1-6 3 2 Figure 1-7 Cooling Air Intake and Exhaust Air Requirements, m3/min. (cfm) Model 12 kW 17/18 kW Figure 1-8 Hz Cooling Air Combustion Air Total Inlet Air 60 26.9 (950) 1.1 (39.2) 28.0 (990) 50 22.4 (790) 0.9 (32.6) 23.4 (826) 60 28.0 (989) 1.62 (57.3) 29.6 (1045) 50 22.6 (798) 1.42 (50.1) 24.0 (848) Air Requirements 1.5 Power Supply Power must be supplied from a source that is GFCI protected to the generator set location for the battery charger and the optional carburetor heater. See Section 1.8. Connect power from a circuit on the essential loads panel to the 120-VAC receptacles. Figure 1-9 lists the power requirements for the battery charger and accessories. Power Requirement, Max. Equipment 216 (420) Exhaust Flow and Temperature Battery charger Air Requirements 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 1-7 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. 18 Section 1 Installation Watts Amps 192 1.6 38 0.32 40 0.34 110 0.92 Volts Carburetor heater: 12 kW 1.4.2 GM51561 1. Exhaust outlet 2. Alternator air intake (both sides) 3. Engine air intake 17/18 kW Battery heater Figure 1-9 120 Power Requirements TP-6516 4/09 1.6 Fuel Requirements Fuel Consumption at % Rated Load The generator set operates using natural gas or LP vapor fuel. The generator set is EPA-certified for both natural gas and LP vapor fuels. The fuel system installation must comply with the NEC and local codes. 1.6.1 Fuel Supply Because of variable climates and geographical considerations, contact the local fuel supplier for fuel system planning and installation. Figure 1-10 lists the recommended fuel ratings and other fuel supply information for natural gas and LP vapor fuels. Fuel types Natural Gas Fuel supply inlet 100% 5.9 (209) 75% 4.8 (168) 50% 3.6 (127) 25% 2.4 LP Vapor, m3/hr. (85) (cfh) 100% 3.1 (108) 75% 2.5 (87) 50% 1.9 (65) 25% 1.2 (44) LP vapor conversion factors: 8.58 ft.3 = 1 lb. 0.535 m3 = 1 kg 36.39 ft.3 = 1 gal. Nominal fuel rating: Natural gas: 37 MJ/m3 (1000 Btu/ft.3) LP vapor: 93 MJ/m3 (2500 Btu/ft.3) 1/2 NPT Figure 1-11 Fuel Consumption, 12 kW Models Fuel supply pressure, kPa (in. H2O), 12 kW 1.3--2.7 (5-11) Fuel supply pressure, kPa (in. H2O), 17/18 kW Fuel flow rate, Btu/hr., 12 kW 1.7--2.7 (7-11) Fuel Consumption at % Rated Load 1.7--2.7 (7-11) 193000 Fuel flow rate, Btu/hr., 17/18 kW Nominal Fuel Rating, LP Vapor Natural Gas, m3/hr. (cfh) 203000 242000 280000 Btu/ft3 Natural Gas, m3/hr. (cfh) 100% 6.9 (242) 75% 5.8 (204) 50% 4.4 (155) 25% LP Vapor, 3.4 (120) m3/hr. (cfh) Natural gas 1000 100% LP vapor 2500 75% 2.7 (96) 50% 2.1 (74) 25% 1.6 (57) Figure 1-10 Fuel Supply Verify that the output pressure from the primary gas utility (or LP tank) pressure regulator is within the range shown in Figure 1-10 and that the utility gas meter flow rate is sufficient to supply the generator set at rated load plus all other gas-consuming appliances. See Figure 1-11 or Figure 1-12 for fuel consumption. Contact the fuel supplier for flow rate information or a gas meter upgrade. 3.2 (112) LP vapor conversion factors: 8.58 ft.3 = 1 lb. 0.535 m3 = 1 kg 36.39 ft.3 = 1 gal. Nominal fuel rating: Natural gas: 37 MJ/m3 (1000 Btu/ft.3) LP vapor: 93 MJ/m3 (2500 Btu/ft.3) Figure 1-12 Fuel Consumption, 17/18 kW Models See Figure 1-2 or Figure 1-4 for the location of the fuel inlet connection. Use flexible sections to prevent fuel line breakage caused by vibration. 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. TP-6516 4/09 Section 1 Installation 19 1.6.2 Fuel Pipe Size 1.7 Fuel Conversion Ensure that the natural gas pipe size and length meet the specifications in Figure 1-13 or Figure 1-14. 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 1-13 or Figure 1-14 to find the required pipe size. The multi-fuel system allows conversion from natural gas to LP vapor (or vice-versa) in the field while maintaining emissions-standard compliance. A trained technician or authorized distributor/dealer can convert the fuel system. WARNING Contact the local LP provider for LP installation information. Maximum Pipe Length, m (ft.) Pipe Size, in. NPT 9.2 (30) 3/4 30.0 (100) 1 68.6 (225) 1 1/4 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. Figure 1-13 12 kW Models, Fuel Pipe Size, Natural Gas Minimum Gas Pipe Size Recommendation, in. NPT Pipe Length, m (ft.) 8 (25) 15 (50) Natural Gas (242,000 Btu/hr.) LP Vapor (280,000 Btu/hr.) 1 3/4 1 1 30 (100) 1 1/4 1 46 (150) 1 1/4 1 1/4 61 (200) 1 1/4 1 1/4 Figure 1-14 17/18 kW Models, Fuel Pipe Size, Natural Gas Disabling the generator set. Accidental starting can cause severe injury or death. Before working on the generator set or connected equipment, disable the generator set as follows: (1) Move the generator set master switch to the OFF position. (2) Disconnect the power to the battery charger. (3) Remove the battery cables, negative (--) lead first. Reconnect the negative (--) lead last when reconnecting the battery. Follow these precautions to prevent starting of the generator set by an automatic transfer switch, remote start/stop switch, or engine start command from a remote computer. WARNING Explosive fuel vapors. Can cause severe injury or death. Use extreme care when handling, storing, and using fuels. 1.7.1 Fuel Conversion For LP vapor 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 line. To convert to LP vapor, install the orifice and disconnect the spark advance leads as described below. See Figure 1-15 for the fuel system component locations. 20 Section 1 Installation TP-6516 4/09 Procedure to Convert from NG to LP 1. Place the generator set master switch in the OFF position. 6. Place the orifice into the hose fitting. Figure 1-16. See 2 1 2. Disconnect the power to the battery charger. 3 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 1-15. 1 tp6514 2 1. LP orifice 3 2. Hose fitting 3. Regulator Figure 1-16 LP Fuel Orifice Installation 4 7. Slide the hose onto the hose fitting and secure it with the clamp. 8. Disconnect the digital spark-advance module (DSAI) leads for LP. (Connect the leads for natural gas.) See Figure 1-17 and Figure 1-18. Fuel System Detail 5 2 6 3 4 Fuel DSAI Leads Natural Gas Connect LP Disconnect Figure 1-17 DSAI Connection 1 GM51561A-D 1. 2. 3. 4. 5. 6. Hose fitting (LP orifice fits inside; see Figure 1-16) Regulator Fuel valve Fuel inlet, 1/2 in. NPT female Fuel hose with clamp DSAI connector location (see Figure 1-18) Figure 1-15 Fuel System Components, Air Inlet Side, 17/18 kW Shown tp6514 1. DSAI leads 65 and N5: connect for natural gas, disconnect for LP Figure 1-18 Digital Spark Advance (DSAI) Leads (located in generator set air intake area) TP-6516 4/09 Section 1 Installation 21 9. Connect and turn on the new fuel supply. 10. Check that the generator set master switch is in the OFF position. 11. Reconnect the generator set engine starting battery leads, negative (--) lead last. 12. Reconnect power to the battery charger. 13. Start the generator set by moving the generator set master switch to the RUN position. 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. Verify that the electrical installation complies with the National Electrical Code (NEC) and all applicable local codes. Ground the generator set from the GRD terminal inside the controller compartment according to applicable codes. 14. Check for leaks using a gas leak detector. 1.8.1 15. Move the generator set master switch to the OFF/ RESET position to shut down the generator set. To convert from LP vapor to natural gas, remove the fuel orifice and connect the DSAI leads together. 1.8 Electrical Connections WARNING AC Connections The generator set is equipped with a field-connection terminal block located in the air inlet area near the junction box. See Figure 1-19 and Figure 1-20. Also see Section 2, Wiring Diagrams. Refer to the transfer switch specifications and Figure 1-20 for the acceptable cable sizes. 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. The electrical installation must comply with the National Electrical Code (NEC) and all applicable 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. 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. 22 Section 1 Installation Connection Procedure See Figure 1-20. Leads have been factory-installed from the junction box to the terminal block for easier field wiring. Refer to the decal near the terminal block for connections. 1. Connect the leads from the transfer switch emergency source lugs to the L1 and L2 connections on the generator set terminal block. 2. 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 1.8.3, Grounding. 3. The terminal block kit includes 120VAC receptacles for the battery charger and optional carburetor heater. Connect utility power to the terminal block as shown. Connect to a circuit that is supplied by the generator set if utility power is lost. TP-6516 4/09 1.8.2 1 Remote Start Connection Connect engine start leads from terminals 3 and 4 to the automatic transfer switch’s engine start terminals or to an optional remote start/stop switch. Route the engine start leads through separate conduit from the AC power and load leads. 2 1.8.3 3 12 kW 1 2 ADV-7466 ADV-7341 1. Junction box 2. Field connection terminal block location (see Figure 1-20) 3. Suggested electrical inlet Figure 1-19 Field Wiring Ground the generator set. The grounding method must comply with NEC and local codes. Connect the grounding strap to the generator set ground lug, terminal GND inside the controller compartment. Kohler generator sets are shipped with the generator neutral attached to the generator in the junction box. 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. 3 17/18 kW Grounding 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 2002 Section 250.20 is one example that has a very good explanation of the neutral grounding requirements for generators. 1.8.4 Battery Charger A 6-amp battery charger is factory-installed in the battery compartment to keep the starting battery fully charged. The battery charger’s DC leads are factoryconnected. Plug the battery charger’s power cord into the receptacle on the bottom of the controller junction box. Refer to the generator set Operation Manual for battery charger operation information. Figure 1-20 Field-Connection Terminal Block TP-6516 4/09 Section 1 Installation 23 1.9 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. 24 Section 1 Installation 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. 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). Use a 12-volt battery with a minimum rating of 525 cold cranking amps at 0_F. The generator set uses a negative ground with a 12-volt engine electrical system. See Figure 1-21 for battery connections. Make sure that the battery is correctly connected and the terminals are tight. 1 2 EZ-273000-J 1. To positive (+) terminal on starter solenoid. 2. To ground (--) terminal on or near starter motor. Figure 1-21 12-Volt Engine Electrical System Single Starter Motor Typical Battery Connection TP-6516 4/09 Note: The generator set will not start and circuit board damage may occur if the battery is connected in reverse. Figure 1-22 shows the location of the engine starting battery. Standard battery cables provide easy connection to the battery. 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. 5. Verify that the controller master switch is in the OFF position. 6. Connect the positive (+) lead to the engine starting battery. 1 7. Connect the negative (--) lead to the engine starting battery. ADV-7341A-B 1. Engine starting battery location Refer to the generator set Operation Manual and the battery manufacturer’s instructions for battery maintenance instructions. Figure 1-22 Battery Location, Air Intake End TP-6516 4/09 Section 1 Installation 25 1.10 Carburetor Heater (optional) Have accessories installed by an authorized distributor/ dealer or a licensed electrician. Follow the installation instructions provided with each kit. 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 Section 2, Wiring Diagrams, for more information regarding generator set electrical connections. 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). See Figure 1-23 through Figure 1-26. battery compartment. See Figure 1-22 and Figure 1-24. Plug the carburetor heater into an outlet that supplies continuous 120 VAC power. Note: Do not place the heater thermostat inside the generator set engine compartment. The thermostat must be exposed to the ambient air. Thermostat will shut off power to the heater when ambient temperature reaches approximately 16_C (60_F). Figure 1-25 shows the location of the carburetor heater on the 17/18 kW generator set engine for reference. (The engine has been removed from the generator set in this photo for a clear view.) 3 The heater thermostat is installed in the cord. Figure 1-26 shows the location of the thermostat on the power cord. 4 5 GM57969 1 1. 2. 3. 4. 5. 2 Thermostat Heater Bulkhead opening for carburetor heater access Carburetor heater cord with thermostat 120 VAC receptacles for carburetor heater and battery charger Figure 1-24 Carburetor Heater, 17/18 kW 1 tp6195 1. Carburetor heater (air cleaner removed to show heater) 2. Carburetor heater power cord Figure 1-23 Carburetor Heater Location, 12 kW 1. Carburetor heater location The heater requires a continuous source of 120 VAC power. The heater power cord and thermostat are located in the generator set housing air intake area/ 26 Section 1 Installation tp6514 Figure 1-25 Carburetor Heater Location, 17/18 kW TP-6516 4/09 1 3 12 kW Carburetor Heater GM19463 1 2 3 GM57968 17/18 kW Carburetor Heater 1. Thermostat 2. Connector 3. Heater Figure 1-26 Carburetor Heaters 1.11 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. 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. 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. 1.12 Startup Notification Complete the startup and installation checklists supplied with the startup notification form. Complete and sign the startup notification form and return copies to Kohler Co. and the distributor/dealer as instructed on the form. Standby systems not registered within 60 days of startup are automatically registered using the manufacturer’s ship date as the startup date. 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. D Check that the exhaust outlet is unobstructed. TP-6516 4/09 Section 1 Installation 27 Notes 28 Section 1 Installation TP-6516 4/09 Section 2 Wiring Diagrams Figure 2-1 lists the wiring diagram drawing numbers and drawing references. Drawing Number Reference Page ADV-7351 Figure 2-2 30 Point-to-Point Wiring Diagram, 12 kW Models GM52471 Figure 2-3 31 Schematic Diagram, 17/18 kW Models ADV-7353 Figure 2-4 32 Point-to-Point Wiring Diagram, 17/18 kW Models GM52541 Figure 2-5 33 Wiring Diagram Description Schematic Diagram, 12 kW Models Figure 2-1 TP-6516 4/09 Wiring Diagrams and Schematics Section 2 Wiring Diagrams 29 - Figure 2-2 30 Schematic Diagram, 12 kW Models, ADV-7351 Section 2 Wiring Diagrams TP-6516 4/09 - Figure 2-3 TP-6516 4/09 Point-to-Point Wiring Diagram, 12 kW Models, GM52471 Section 2 Wiring Diagrams 31 - Figure 2-4 32 Schematic Diagram, Single Phase, 17/18 kW Models, ADV-7353 Section 2 Wiring Diagrams TP-6516 4/09 Figure 2-5 TP-6516 4/09 Point-to-Point Wiring Diagram, Single Phase, 17/18 kW Models, GM52541 Section 2 Wiring Diagrams 33 Notes 34 Section 2 Wiring Diagrams TP-6516 4/09 Appendix A Abbreviations The following list contains abbreviations that may appear in this publication. A, amp ABDC AC A/D ADC adj. ADV Ah AHWT AISI ALOP alt. Al ANSI AO APDC API approx. AQMD AR AS ASE ASME assy. ASTM ATDC ATS auto. aux. avg. AVR AWG AWM bat. BBDC BC BCA BCI BDC BHP blk. blk. htr. BMEP bps br. BTDC Btu Btu/min. C cal. CAN CARB CB cc CCA ccw. CEC cert. cfh ampere after bottom dead center alternating current analog to digital advanced digital control; analog to digital converter adjust, adjustment advertising dimensional drawing amp-hour anticipatory high water temperature American Iron and Steel Institute anticipatory low oil pressure alternator aluminum American National Standards Institute (formerly American Standards Association, ASA) anticipatory only Air Pollution Control District American Petroleum Institute approximate, approximately Air Quality Management District as required, as requested as supplied, as stated, as suggested American Society of Engineers American Society of Mechanical Engineers assembly American Society for Testing Materials after top dead center automatic transfer switch automatic auxiliary average automatic voltage regulator American Wire Gauge appliance wiring material battery before bottom dead center battery charger, battery charging battery charging alternator Battery Council International before dead center brake horsepower black (paint color), block (engine) block heater brake mean effective pressure bits per second brass before top dead center British thermal unit British thermal units per minute Celsius, centigrade calorie controller area network California Air Resources Board circuit breaker cubic centimeter cold cranking amps counterclockwise Canadian Electrical Code certificate, certification, certified cubic feet per hour TP-6516 4/09 cfm CG CID CL cm CMOS cubic feet per minute center of gravity cubic inch displacement centerline centimeter complementary metal oxide substrate (semiconductor) cogen. cogeneration com communications (port) coml commercial Coml/Rec Commercial/Recreational conn. connection cont. continued CPVC chlorinated polyvinyl chloride crit. critical CRT cathode ray tube CSA Canadian Standards Association CT current transformer Cu copper cUL Canadian Underwriter’s Laboratories CUL Canadian Underwriter’s Laboratories 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 DFMEA Design Failure Mode and Effects Analysis dia. diameter DI/EO dual inlet/end outlet DIN Deutsches Institut fur Normung e. V. (also Deutsche Industrie Normenausschuss) DIP dual inline package DPDT double-pole, double-throw DPST double-pole, single-throw DS disconnect switch DVR digital voltage regulator E, emer. emergency (power source) ECM electronic control module, engine control module EDI electronic data interchange EFR emergency frequency relay e.g. for example (exempli gratia) EG electronic governor EGSA Electrical Generating Systems Association EIA Electronic Industries Association EI/EO end inlet/end outlet EMI electromagnetic interference emiss. emission eng. engine EPA Environmental Protection Agency EPS emergency power system ER emergency relay ES engineering special, engineered special ESD electrostatic discharge est. E-Stop etc. exh. ext. F fglass. FHM fl. oz. flex. freq. FS ft. ft. lb. ft./min. ftp g ga. gal. gen. genset GFI estimated emergency stop et cetera (and so forth) exhaust external Fahrenheit, female fiberglass flat head machine (screw) fluid ounce flexible frequency full scale foot, feet foot pounds (torque) feet per minute file transfer protocol gram gauge (meters, wire size) gallon generator generator set ground fault interrupter GND, gov. gph gpm gr. GRD gr. wt. HxWxD HC HCHT HD HET ground governor gallons per hour gallons per minute grade, gross equipment ground gross weight height by width by depth hex cap high cylinder head temperature heavy duty high exhaust temp., high engine temp. hexagon mercury (element) hex head hex head cap horsepower hour heat shrink housing heating, ventilation, and air conditioning high water temperature hertz (cycles per second) integrated circuit inside diameter, identification International Electrotechnical Commission Institute of Electrical and Electronics Engineers improved motor starting inch inches of water inches of mercury inch pounds incorporated industrial internal internal/external input/output iron pipe International Organization for Standardization joule Japanese Industry Standard hex Hg HH HHC HP hr. HS hsg. HVAC HWT Hz IC ID IEC IEEE IMS in. in. H2O in. Hg in. lb. Inc. ind. int. int./ext. I/O IP ISO J JIS Appendix 35 k K kA KB KBus kg kg/cm2 kilo (1000) kelvin kiloampere kilobyte (210 bytes) Kohler communication protocol kilogram kilograms per square centimeter kgm kilogram-meter kg/m3 kilograms per cubic meter kHz kilohertz kJ kilojoule km kilometer kOhm, kΩ 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/ft3 pounds mass per cubic feet LCB line circuit breaker LCD liquid crystal display ld. shd. load shed 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 Lwa sound power level, A weighted LWL low water level LWT low water temperature m meter, milli (1/1000) M mega (106 when used with SI units), male m3 cubic meter m3/hr. cubic meters per hour m3/min. cubic meters per minute mA milliampere man. manual max. maximum MB megabyte (220 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, mΩmilliohm MOhm, MΩmegohm MOV metal oxide varistor MPa megapascal mpg miles per gallon mph miles per hour MS military standard ms millisecond m/sec. meters per second MTBF mean time between failure 36 Appendix MTBO mtg. MTU MW mW μF N, norm. NA nat. gas NBS NC NEC NEMA mean time between overhauls mounting Motoren-und Turbinen-Union megawatt milliwatt microfarad normal (power source) not available, not applicable natural gas National Bureau of Standards normally closed National Electrical Code National Electrical Manufacturers Association NFPA National Fire Protection 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 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 rnd. ROM rot. rpm RS RTU RTV RW SAE scfm SCR s, sec. SI SI/EO sil. SN SNMP SPDT SPST spec specs sq. sq. cm sq. in. SS std. stl. tach. TD TDC TDEC TDEN TDES TDNE TDOE TDON temp. term. THD TIF TIR tol. turbo. typ. UF UHF UL UNC UNF univ. US UV V VAC VAR VDC VFD VGA VHF W WCR w/ w/o wt. xfmr root mean square round read only memory rotate, rotating revolutions per minute right side remote terminal unit room temperature vulcanization read/write Society of Automotive Engineers standard cubic feet per minute silicon controlled rectifier second Systeme international d’unites, International System of Units side in/end out silencer serial number simple network management protocol single-pole, double-throw single-pole, single-throw specification specification(s) square square centimeter square inch stainless steel standard steel tachometer time delay top dead center time delay engine cooldown time delay emergency to normal time delay engine start time delay normal to emergency time delay off to emergency time delay off to normal temperature terminal total harmonic distortion telephone influence factor total indicator reading tolerance turbocharger typical (same in multiple locations) underfrequency ultrahigh frequency Underwriter’s Laboratories, Inc. unified coarse thread (was NC) unified fine thread (was NF) universal undersize, underspeed ultraviolet, undervoltage volt volts alternating current voltampere reactive volts direct current vacuum fluorescent display video graphics adapter very high frequency watt withstand and closing rating with without weight transformer TP-6516 4/09 Notes TP-6516 4/09 37 Notes 38 TP-6516 4/09 KOHLER CO. Kohler, Wisconsin 53044 Phone 920-565-3381, Fax 920-459-1646 For the nearest sales/service outlet in the US and Canada, phone 1-800-544-2444 KohlerPower.com TP-6516 4/09d E 2007, 2008, 2009 by Kohler Co. All rights reserved. Kohler Power Systems Asia Pacific Headquarters 7 Jurong Pier Road Singapore 619159 Phone (65) 6264-6422, Fax (65) 6264-6455
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