INSTALLATION GUIDELINES Air-cooled Generators NOT INTENDED FOR USE IN CRITICAL LIFE SUPPORT APPLICATIONS. THIS PRODUCT CAN BE INSTALLED BY THE HOMEOWNER. HOWEVER, IF YOU ARE UNCOMFORTABLE WITH THE SKILLS OR TOOLS REQUIRED, HAVE A QUALIFIED ELECTRICIAN OR CONTRACTOR PERFORM THE INSTALLATION. THIS MANUAL MUST BE USED IN CONJUNCTION DEADLY EXHAUST FUMES! OUTDOOR INSTALLATION ONLY! WITH THE APPROPRIATE OWNER’S MANUAL.
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WARNING! California Proposition 65 Engine exhaust and some of its constituents are known to the state of California to cause cancer, birth defects, and other reproductive harm. WARNING! California Proposition 65 This product contains or emits chemicals known to the state of California to cause cancer, birth defects, and other reproductive harm.
Safety Rules & General Information Section 1 1.1 INTRODUCTION Thank you for purchasing this compact, high performance, air-cooled, engine-driven generator. It is designed to automatically supply electrical power to operate critical loads during a utility power failure. This unit is factory installed in an all-weather, metal enclosure that is intended exclusively for outdoor installation. This generator will operate using either vapor withdrawn liquid propane (LP) or natural gas (NG).
1.2 SAFETY RULES Save These Instructions – The manufacturer suggests that these rules for safe operation be copied and posted near the unit’s installation site. Safety should be stressed to all operators and potential operators of this equipment. Study these SAFETY RULES carefully before installing, operating or servicing this equipment. Become familiar with this Installation Manual and with the unit.
1.2.2 ELECTRICAL HAZARDS • All generators covered by this manual produce dangerous electrical voltages and can cause fatal electrical shock. Utility power delivers extremely high and dangerous voltages to the transfer switch, as does the standby generator when it is in operation. Avoid contact with bare wires, terminals, connections, etc., while the unit is running.
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1.3.2 NEC REQUIREMENTS Local code enforcement may require that Arc Fault Circuit Interrupters (AFCIs) be incorporated into the transfer switch distribution panel. The Transfer Switch provided with this generator has a distribution panel that will accept AFCIs (pre-wired transfer switches only). Siemens Part No.
If this generator is used to power electrical load circuits normally powered by a utility power source, it is required by code to install a transfer switch. The transfer switch must effectively isolate the electrical system from the utility distribution system when the generator is operating (NEC 700, 701 &...
2.2 UNPACKING 1. With the box removed, you can see that this unit came with an automatic transfer switch. The transfer switch is an option and may not be included. 2. Remove the wood frame and lift the transfer switch, if present, off the top of the generator. Figure 2.1 —...
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5. There are two locks securing the lid, one on each side. To properly open the lid, press down on the lid above the side lock and unlock the latch. Repeat for the other side. If pressure is not applied from the top, the lid may appear stuck. NOTE: Always verify that the side locks are unlocked before attempting to lift the lid.
8-17 kW MAIN AC/CONTROL WIRING CONDUIT HOLE w/CAP PLUG 20 kW MAIN AC/CONTROL WIRING CONDUIT HOLE w/CAP PLUG FUEL CONNECTION HOLE BASE FASCIA (IF EQUIPPED) Figure 2.6 — Generator Back View 2.3 PARTS SHIPPED LOOSE • Rubber Mounts (only for units that include fascia) •...
Site Selection and Preparation Section 3 3.1 SITE SELECTION No operable windows or openings in the wall permitted within 5 ft (1.52 m) from any point of the generator. 18 in (457 mm) Existing Wall 60 in (1524 mm) 60 in (1524 mm) Minimum Distance Clearance from operable 36 in...
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Install the generator set, in its protective enclosure, outdoors, where adequate cooling and ventilating air is always available (Figure 1.9). Consider these factors: • The installation of the generator must comply strictly with NFPA 37, NFPA 54, NFPA 58 and NFPA 70 standards. •...
Figure 3.2 — Southwest Research Institute Decal (located inside the generator, next to the generator’s data decal) http://www.swri.org/4org/d01/fire/listlab/listprod/director.htm Based on this testing and the requirements of NFPA 37, Sec 4.1.4, the guidelines for installation of the generators listed above are changed to 18 in (457 mm) from the back side of the generator to a stationary wall or building.
Figure 3.3 — Compacted Gravel Site Figure 3.4 — Concrete Pad Site After completing your SITE SELECTION and PREPARATION, Step 3 time for SECTION 4 - GENERATOR PLACEMENT Generator Placement Section 4 4.1 GENERATOR PLACEMENT With the Site Selection and Preparation performed, proceed with placement and installation of the generator itself. All of the air-cooled generators come with a composite pad.
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Figure 4.1 — Composite pad When mounting the generator to concrete, there are four mounting holes available for securing the generator, if codes require (two holes inside the front of the generator compartment and two holes in the back). See Figure 3.2. Figure 4.2 —...
Figure 3.5 — Fascia Installation After completing GENERATOR PLACEMENT, proceed to Step 4 SECTION 5 — FUEL CONVERSION / GAS REQUIREMENTS / CONNECTIONS Fuel Conversion / Gas Requirements / Section 5 Connections 5.1 FUEL CONVERSION The generator was confi gured for natural gas operation at the factory. Press and turn fuel knob 180° to switch over to LP Vapor. NOTE: The orange fuel conversion knob is located on the top of the fuel mixer on the V-twin engine and under the fuel mixer on the single cylinder engine.
FUEL KNOB LOCATIONS SHOWN FROM GENERATOR AIR BOX SIDE VIEW 8 kW GENERATOR FUEL KNOB 11-20 kW GENERATORS ORANGE FUEL FUEL KNOB CONVERSION KNOB Figure 5.1 — Fuel Conversion Knob Location for Single and Twin Cylinder Generators 5.2 FUEL REQUIREMENTS AND RECOMMENDATIONS With LP gas, use only the vapor withdrawal system.
5.3 FUEL CONSUMPTION NOTE: Required fuel pressure for natural gas is 3.5-7 in water column (7-13 mm mercury). The required fuel pressure for LP Vapor is 10-12 in water column (19-22 mm mercury). These are approximate values, use the appropriate spec sheet or owner’s manual for specifi c values. Nat.
5.4.1 NATURAL GAS PIPE SIZING To properly use this chart, fi nd the kW rating of the generator in the left column, and trace to the right. The number to the right is the maximum length (measured in feet / meters) allowed for the pipe sizes on top. The pipe sizes are measured by inside diameter (ID) to include any fi ttings, valves (must be full fl...
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2. Most applications will require an external manual full flow shutoff valve on the fuel line. Figure 5.2 — Full Flow Shutoff Valve 3. When connecting the gas line to the generator, use the provided section of UL Listed or AGA-approved flexible fuel line in accordance with local regulations.
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4. Never bend the flexible fuel line to avoid using an elbow. Bending the flexible line decreases its ability to absorb vibrations and defeats its purpose, as well as constricts the actual fuel flow. See Figure 5.5. 5. Check for leaks by spraying all connection points with a soap solution made of dishwashing soap and water. You should not see the solution be “blown away”...
Primary Regulator Per LP Provider BTU and Pressure Decal Check Distance with LP Provider Size tank Large Enough to provide required BTUs for Generator and ALL Check distance with Connected Appliance Regulator Manufacturer Loads. Be sure to correct for Weather Evaporation. Fuel Tank High Pressure Pipe Flex Fuel Line...
6.2 CONTROL WIRING Control Wire Recommended Length and Size Maximum Wire Length Recommended Wire Size 1-115 ft (1-35 m) No. 18 AWG 116-185 ft (36-56 m) No. 16 AWG 186-295 ft (57-89 m) No. 14 AWG 296-460 ft (90-140 m) No.
NOTE: Main AC wiring must be in accordance with local jurisdiction and codes. 6. Strip the insulation off the wire ends. Do not remove excessive insulation. 7. Remove the two cap plugs located behind the breaker door and to the right of the Main Breaker. 8.
With the ELECTRICAL CONNECTIONS completed, Step 6 proceed to the fi nal step - SECTION 7 — CONTROL PANEL / ACTIVATION / START-UP / TESTING Control Panel / Activation / Start-up / Section 7 Testing CONTROL PANEL INTERFACE 7.1.1 USING THE AUTO / MANUAL / OFF BUTTONS (FIGURE 7.1) With the AUTO button pushed in, the engine may crank and start at any time without warning.
Display Interface Menus The LCD display is organized as detailed below: • The “Home” page is the default page that will be displayed if no keys are pressed for fi ve (5) minutes. This page normally shows the current Status message and the current date and time. The highest priority active Alarm and/or Warning will be automatically posted on this page as well, and the backlight will fl...
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ACTIVATION CHART TROUBLESHOOTING Display Reads: Use ARROW keys to scroll to desired If the wrong language is chosen, it can be language. Press ENTER to select. changed later using the “edit” menu. Language English Display Reads: Press ENTER to begin the activation process. If ESCAPE is pressed instead of ENTER, the generator will only run in manual mode (for test purposes) and NOT ACTIVATED will...
7.3.1 Installation Assistant Interconnect System Self Test Feature (follow the on-screen prompts) Upon power up, this controller will go through a system self test which will check for the presence of utility voltage on the DC circuits. This is done to prevent damage if the installer mistakenly connects AC utility power sense wires into the DC terminal block.
11. Connect the AC voltmeter test leads across terminal lugs E1 and neutral; then across E2 and neutral. In both cases, voltage reading should be 119-121 volts AC. If it’s not, verify that the MLCB is closed and verify AC output between the E1 and E2 of the MLCB and Neutral at the generator.
7.8 INSTALLATION SUMMARY 1. Ensure that the installation has been properly performed as outlined by the manufacturer and that it meets all applicable laws and codes. 2. Test and confi rm proper operation of the system as outlined in the appropriate installation and owner’s manuals. 3.
Troubleshooting Section 8 PROBLEM CAUSE CORRECTION The engine will not crank. 1. Fuse blown. 1. Correct short circuit condition by replacing 7.5 Amp fuse in generator control panel. 2. Loose, corroded or defective battery cables. 2. Tighten, clean or replace as necessary.* 3.
Quick Reference Guide Section 9 Problem Things to Check Active Alarm Solution Unit running in AUTO but no GREEN Check MLCB. NONE Check MLCB if the MLCB is in the ON position. If it is in power in house. the ON position contact the servicing dealer. Unit shuts down during Check the LED’s / Screen for HIGH TEMPERATURE...
Accessories Section 10 There are performance enhancing accessories available for air-cooled generators. Accessory Description Cold Weather Kit Recommended in areas where temperatures regularly fall below 32 ºF (0 ºC). Scheduled Maintenance Kit Includes all pieces necessary to perform maintenance on the generator along with oil recommendations. Auxiliary Transfer Switch Lockout Enables any of the transfer switches to completely lock out one large electrical load by tying into its control system.
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Owner’s Manual Automatic Transfer Switch 50 & 100 Amp Model Number RTG10EZA1 RTG12EZA1 RTG16EZA1 MODEL NUMBER: _________________________ SERIAL NUMBER: _________________________ DATE PURCHASED:________________________ Register your Generac product at: WWW.GENERAC.COM 888-436-3722 Para español , visita: http://www.generac.com/service‐support/product‐support‐lookup Pour le français, visiter : http://www.generac.com/service‐support/product‐support‐lookup...
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Automatic Transfer Switch Owner’s Manual...
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Table of Contents Section 1 Introduction and Safety Section 4 Operation 1.1 Introduction ............1 4.1 Functional Tests and Adjustments ......9 1.2 Safety Rules ............1 4.2 Manual Operation ...........9 4.2.1 Transfer Mechanism Manual Operation .....9 1.3 Safety Symbols and Meanings ......2 4.2.2 Close to Generator Source Side ......10 4.2.3 Return to Utility Source Side ......10 Section 2 General Information...
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Introduction and Safety Section 1 Introduction and Safety 1.1 — Introduction Thank you for purchasing a Generac Power Systems Inc. product. This unit has been designed to provide high-performance, efficient operation, and years of use when maintained properly. Read this manual thoroughly and understand all of the instructions, cautions, and warnings before using this equipment.
Introduction and Safety 1.3 — Safety Symbols and Meanings • Any voltage measurements should be performed with a meter that meets UL3111 safety standards, and meets or exceeds overvoltage class CAT III. Automatic Transfer Switch Owner’s Manual...
General Information Section 2 General Information 2.1 — Unpacking The conductor size range is as follows: Conductor Carefully unpack the transfer switch. Inspect closely for Switch Wire Range Tightening Temp. any damage that might have occurred during shipment. Rating Torque Rating The purchaser must file with the carrier any claims for loss or damage incurred while in transit.
General Information 2.2.2— Circuit Breakers Listed for Use Publications that outline the safe installation and manu- facturing of transfer switches are the following: This switch is listed for use with the following one inch • NFPA 70; National Electrical Code breakers: •...
Installation Section 3 Installation 3.1 — Mounting the Transfer Switch Figure 3-1. Transfer Switch Mounting 3.2 — Mounting the Outdoor Connection Box Lift cover. Remove internal cover plate screw and internal cover. Remove the knock out in the lower right corner of Mounting dimensions for the transfer switch enclosure the external connection box and feed wires, 4-pin are in this manual.
Installation Conductor sizes must be adequate to handle the maxi- mum current to which they will be subjected, based on the 75°C column of tables, charts, etc. used to size con- ductors. The installation must comply fully with all appli- cable codes, standards and regulations.
Installation 3.6 — Installing Branch Circuit 3.7 — Installing Branch Circuit Conductors – USA Installations Conductors – Canadian Installations Select which branch circuits will be protected by the generator in the normal power panel board. Select which branch circuits will be protected by Turn the circuit breaker in the normal power panel the generator in the normal power panel board.
Installation 3.8 — Installing Breakers IMPORTANT: AFCI and GFCI circuit breakers are not provided by the factory. If the circuits to be protected require AFCI or GFCI protection, or both, then listed protection shall be provided by the installer. The factory supplied breakers can be changed by the installer.
Operation Section 4 Operation 4.1 — Functional Tests and • Manual operation handle in the DOWN position - LOAD terminals (T1, T2) are connected to Adjustments STANDBY terminals (E1, E2). Following transfer switch installation and interconnection, inspect the entire installation carefully. A competent, qualified electrician should inspect it.
Operation 4.2.2— Close to Generator Source Side Set the generator's main circuit breaker (CB1) to its ON or CLOSED position. Before proceeding, verify the position of the switch by observing the position of the manual operation handle in . If the handle is DOWN, the contacts are closed Figure 4-1 in the GENERATOR (STANDBY) position.
Operation With the generator in the AUTOMATIC mode, the system • Verify that the gas pressure remains within accept- is now set for fully automatic operation. able parameters (see the generator Installation Guidelines manual). 4.6 — Installation Summary • Let the generator run under rated load for at least 30 minutes.
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Drawings and Diagrams 5.3 — Interconnection Drawing 5.3.1— Drawing No. 0H6453-B (Part 1 of 2) ALL CIRCUIT NEUTRAL CONDUCTORS NOT SHOWN FOR CLARITY 16 CIRCUIT LOAD CENTER 14 CIRCUIT LOAD CENTER 12 CIRCUIT LOAD CENTER EXTERNAL CONNECTION 10 CIRCUIT LOAD CENTER 8 CIRCUIT LOAD CENTER TO GENERATOR OUTPUT...
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Drawings and Diagrams 5.3.3— Drawing No. 0H6454-B EXTERNAL CONNECTION CONTROL TRANSFER TS TO LOAD SENSING GENERATOR 120VAC CONTROL OUTPUT PANEL UTILITY SENSING 240VAC OUTPUT BLACK OUTPUT GENERATOR NEUTRAL (WHITE) GROUND (GREEN) NEUTRAL CONNECTION INSIDE GROUND (GREEN) SWITCH NEUTRAL (WHITE) 240VAC TO RED (MAIN 2) MAIN DISTRIBUTION PANEL...
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Drawings and Diagrams Automatic Transfer Switch Owner’s Manual...
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WINDCHILL VERSION AIR INTAKE 457.2 [18.0] 914 [36.0] MINIMUM OPEN AREA [23.5] ON SIDES AND FRONT [26.0] 679.5 768.3 [26.8] [30.2] AIR OUTLET AIR INTAKE [8.3] TOP VIEW [12.1] 250.0 575.3 266.7 PRE-WIRED TRANSFER SWITCH [9.8] [22.7] 30.2 [ 1.2] [10.5] (IF SUPPLIED) LIFTING HOLES 4 CORNERS...