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Home My WebLink AboutSLC.Termanini.Generator.Transfer Switch Specs.GENERAL' Owner's Manual For Automatic Transfer Switch 100 - 200 Amp, Service Entrance I Non -Service Entrance Model Number RXSW100A3 (Service Entrance Rated with Utility Service Circuit Breaker) RXSC100A3 RXSW150A3 (Service Entrance Rated with Utility Service Circuit Breaker) RXSW200A3 (Service Entrance Rated with Utility Service Circui reaker) RXSC200A3 SERIAL NUMBER: DATE PURCHASED: WWW.GENERAC.COM 888-436-3722 Para espanol , visita: http://www.generac.com/service-sugport/prod ;alct-support-lookup Pour le frangais, visiter = http'/lwww_aenerac_com/service-supportly rod uct-sugRort-lookup Table of Contents Section 9: Safety Introduction..........................................................1 SafetyRules.........................................................1 Safety Symbols and Meanings ...........................1 Electrical Hazards................................................2 General Hazards..................................................3 Section 2: General Information Unpacking............................................................5 Equipment Description.......................................5 Transfer Switch Mechanism........................................5 Utility Service Circuit Breaker (if equipped) .......... Transfer Switch Data Decal................................6 Transfer Switch Enclosure.................................6 Safe Use of Transfer Switch...............................6 Load Management Options.................................6 Smart A/C Module (SACM).........................................6 Smart Management Module (SMM) ............................7 Application Considerations..........................................7 Section 3: Installation Introduction to Installation.................................9 Mounting...............................................................9 Open Enclosure...................................................9 Connecting Power Source and Generator PowerSupply...............................................10 Connecting Start Circuit Wires .........................11 Connecting SACM.............................................11 Control of Air Conditioner Load.................................11 Auxiliary Contact...............................................13 Fault Current Label............................................13 Section 4: Operation Functional Tests and Adjustments ..................15 Manual Operation..............................................15 Close to Utility Source Side.......................................15 Close to Generator Source Side...............................16 Return to Utility Source Side.....................................16 Voltage Checks..................................................16 Utility Voltage Checks...............................................16 Generator Voltage Checks........................................16 Generator Tests Under Load ............................16 Checking Automatic Operation ........................17 Installation Summary........................................17 Shutting Generator Down While Under Load Or During A Utility Outage .........................17 Preparing for Maintenance...............................18 Testing The SACM.............................................18 SACM Fuse Service...........................................18 Testing The SMM............................................... 18 Section 5: Drawings and Diagrams Installation Drawings........................................19 No. OG6832-A: 100A SE & non-SE1150-200A non-SE.............................................................19 No. 10000012171-A: 150/200A SE ............................20 Interconnection Drawings................................21 No. 10000009574 (Part 1 of 2�—Liquid-Cooled Generator.........................................................21 No. 10000009574 (Part 2 of 2�—Liquid-Cooled Generator .................................. .........22 No. 10000009620, SE and non -SE Rated ATS (1 of 2)—Air-Cooled Generator ........................23 No. 10000009620, SE and non -SE Rated ATS (2 of 2)—Air-Cooled Generator ........................24 Automatic Transfer Switch Owner's Manual General Information Section 2: General Information Unpacking Carefully unpack the transfer switch. Inspect closely for any damage that might have occurred during shipment. The purchaser must file with the carrier any claims for loss or damage incurred while in transit. Check that all packing material is completely removed from the switch prior to installation. Equipment Description This automatic transfer switch is used for transferring electrical load from a utility (normal) power source to a generator (standby) power source. Transfer of electrical loads occurs automatically when the utility power source has failed or is substantially reduced and the generator source voltage and frequency have reached an acceptable level. The transfer switch prevents electrical feedback between two different power sources (such as the utility and generator sources) and, for that reason, codes require it in all standby electric system installations. The transfer switch consists of a transfer mechanism, utility service disconnect circuit breaker (if equipped), and a Smart A/C module incorporating fuses and two terminal blocks for transfer switch connections. Transfer Switch Mechanism See Figure 2-1. This switch is used with a single-phase system when the single-phase neutral line is to be connected to a neutral lug and is not to be switched. Solderless, screw -type terminal lugs are standard. The conductor size range is as follows: Switch wire Range Conductor Rating Tightening Torque 100A #14-1/0 AWG (Cu/Al) 50 in-Ibs (5.6 Nm) 150/200A #6-250 MCM (Cu/Al) 275 in-Ibs (31 Nm) This transfer switch is suitable for control of motors, electric discharge lamps, tungsten filament and electric heating equipment where the sum of motor full load ampere ratings and the ampere ratings of other loads do not exceed the ampere rating of the switch and the tungsten load does not exceed 30 percent of the switch rating. This UL listed transfer switch is for use in optional standby systems only (NEC article 702). A 100A rated switch is suitable for use on circuits capable of delivering not more than 10,000 RMS symmetrical amperes, 250 VAC maximum, when protected by a 100A maximum circuit breaker (Siemens types OP or BQ) or 150A maximum circuit breaker (Square D Q2, Westinghouse CA-CAH, General Electric TQ2 and Siemens QJ2). A 200A rated switch is suitable for use on a circuit capable of 22,000 RMS symmetrical amperes, 240 VAC when protected by a circuit breaker without an adjustable short time response or by fuses. 000219 Figure 2-1. Typical Single -Phase ATS Transfer Mechanism A Utility Closing Coil B Generator Closing Coil C Utility Lugs (N1 & N2) D Generator Lugs (E1 & E2) E Load Lugs (T1 & T2) Automatic Transfer Switch Owner's Manual General Information Utility Service Circuit Breaker (if equipped) The utility service and generator disconnect circuit break- ers for 100 amp models are: • Type BQ, 2-pole • 10,000 A/C • 120/240VAC, 100A • 50/60 Hertz • Wire range: #1 - #8 AWG (Cu/Al) • The conductor tightening torque is 50 in-Ibs. (5.6 Nm). The utility service circuit breakers for 150/200 amp models are: • Type 225AF, 2-pole • 22,000 A/C y► • 120/240VAC, 150A/200A G • 50/60 Hertz • Wire range: — Line: 300 MGM - 6 STIR (Cu/AI) — Load - ATS: 250 MCM - 6 STR (Cu/Al) • The conductor tightening torque is: — Line: 375 in-Ibs (42.4 Nm) — Load - ATS: 275 in-Ibs. (31 Nm) The utility service circuit breakers for Siemens 1501200 amp models are: • Siemens, Type ON, 2-pole • 10,000 A/C 0 120/240VAC, 150A/200A • 50/60 Hertz • Wire range: — Line: 300 MCM - 1 STIR (Cu/AI) — Load -ATS: 250 MCM - 6 STIR (Cu/Al) • The conductor tightening torque is: — Line: 250 in-Ibs (28.2 Nm) — Load -ATS: 275 in-Ibs. (31 Nm) Transfer Switch Data Decal A data decal is permanently affixed to the transfer switch enclosure. Use this transfer switch only with the specific limits shown on the data decal and on other decals and labels that may be affixed to the switch. This will prevent damage to equipment and property. When requesting information or ordering parts for this equipment, make sure to include all information from the data decal. For future reference, record the Model and Serial numbers in the space provided on the front cover of this manual. Transfer Switch Enclosure The standard switch enclosure is a National Electrical Manufacturer's Association (NEMA) and UL 3R type. UL and NEMA 3R (indoor/outdoor rated) type enclosures primarily provide a degree of protection against falling rain and sleet; are undamaged by the formation of ice on the enclosure. Safe Use of Transfer Switch Consult Manual Read and understand manual completely before using product. Failure to completely understand manual and product could result in death or serious injury.(000100a) Before installing, operating or servicing this equipment, read the Safety Rules carefully. Comply strictly with all Safety Rules to prevent accidents and/or damage to the equipment. The manufacturer recommends that a copy of the Safety Rules be posted near the transfer switch. Also, be sure to read all instructions and information found on tags, labels and decals affixed to the equipment. Two publications that outline the safe use of transfer switches are the following: • NFPA 70; National Electrical Code • UL 1008: Standard for Safety —Automatic Transfer Switches NOTE: It is essential to use the latest version of any standard to guarantee correct and current information. Load Management Options Load management systems are designed to work together to prevent a generator from being overloaded by large appliance loads. A Smart A/C Module (SACM) is provided as standard equipment with this switch. An optional Smart Management Module (SMM) is also available. Smart A/C Module (SACM) Up to four air conditioner loads can be managed by the SACM. The SACM manages the loads by "shedding" the connected loads in the event of a drop in generator frequency (overload). Loads to be "shed" are in 4 priority levels on the module. See Figure 2-2. Priorities A/C 1-4 (A) have connections for an air conditioner, To control an air conditioner, no additional equipment is required. Internal normally closed relays interrupt the 24 VAC thermostat control signal to disable the air conditioner load. Four LEDs, located on the SACM (B), illuminate when a load is connected and powered. 6 Automatic Transfer Switch Owner's Manual Installation Section 3: Installation Introduction to Installation This equipment has been wired and tested at the factory. Installing the switch includes the following procedures: • Mounting the enclosure. • Connecting power source and load leads. • Connecting the generator start and sensing circuit. • Connecting any auxiliary contact (if needed). • Testing functions. Mounting Mounting dimensions for the transfer switch enclosure are in this manual. Enclosures are typically wall- mounted- See Draw(ngs�and Diagrams. r ■ Equipment malfunction. Installing a dirty or damaged transfer switch will cause equipment malfunction and will result in death or serious injury. (000119) This transfer switch is mounted in a UL type 3R enclosure. It can be mounted outside or inside and should be based on the layout of installation, convenience and proximity to the utility supply and load center. Install the transfer switch as close as possible to the electrical loads that are to be connected to it. Mount the switch vertically to a rigid supporting structure. To prevent switch distortion, level all mounting points. If necessary, use washers behind mounting holes to level the unit. Open Enclosure See Figure 3-1. First, remove outer cover (A): 1. Remove thumb screw (6). 2. Slide slot (C) over retention tab. 3. Lower cover until clear of top flange (D), and pull away from enclosure. Remove inner panel (E): 4. Loosen nut (F) until it dears t-slot (H) in inner panel. 5. Grasp inner panel at two cutouts (G—left and right). Tilt inner panel as shown, passing nut through t-slot. 6. Lower inner panel until clear of two retention slots (J—left and right sides), and pull away from enclosure. 004397 Figure 3-1. Open Enclosure Automatic Transfer Switch Owner's Manual 9 Installation Connecting Power Source and Generator Power Supply Electrocution. Turn utility and emergency power supplies to OFF before connecting power source and load lines. Failure to do so will result in death or serious injury. (000116) Installation and interconnection diagrams are provided in this manual. NOTE: All installations must comply with national, state and local codes. It is the responsibility of the installer to perform an installation that will pass the final electrical inspection. 1. Connect utility supply at the utility service disconnect circuit breaker terminals N1 and N2. Follow torque specifications listed on the circuit breaker. 2. See Figure 3-2. Connect utility neutral and ground to the Upper Neutral and Ground terminals. Neutral and Ground terminals are bonded to each other with a jumper wire (A). NOTE: Neutral to Ground jumper wire (A) is provided for use if required by local codes. 3. Connect generator to the generator terminals (El and E2) on the transfer mechanism. 4. Connect the generator neutral wire to the lower neutral lug. IMPORTANT NOTE: A juniper wire (8) bonds the upper and lower Neutral lugs. NEVER remove this wire. 5. Connect a subpanel supply to lower T1 and T2 Terminals. Connect subpanel Neutral and Ground to lower Neutral and Ground bars. Conductor sizes must be adequate to handle the maximum current to which they will be subjected, based on the 75°C column of tables, charts, etc. used to size conductors. The installation must comply fully with all applicable codes, standards and regulations. Knockouts into the transfer switch can be made in the field as needed for entry of power cables and conduit. Conduit entry shall maintain the proper wire bending spaces required by Tables 212.6 (A) and (R) in the NEC. Conduits should be arranged to provide separation between the Utility and Generator supply conductors inside the enclosure. For transfer switches installed in wet locations, power cables or conduits entering above the level of uninsulated live parts shall use fittings fisted for use in wet locations as required by 312.2 in the NEC. NOTE: If aluminum conductors are used, apply corrosion inhibitor to conductors. After tightening terminal lugs, carefully wipe away any excess corrosion inhibitor. 004398 Figure 3-2. Wiring Connections Tighten terminal lugs to the torque values as noted on the decal located on the inside of the door. After tightening terminal lugs, carefully wipe away any excess corrosion inhibitor. ACAUTION Equipment damage. Verify all conductors are tightened to the factory specified torque value. Failure to do so could result in damage to the switch base. (000120) 10 Automatic Transfer Switch Owner's Manual Installation Auxiliary Contact See Figure 3-4. If desired, there is o Auxiliary Contact (A) on the transfer customer accessories, remote advisory annunciator devices. A suitable power connected to the common terminal. If auxiliary contact can be added. on ca normally -closed switch to operate lights, or remote source must be needed, an extra Figure 3-4. Auxiliary Contact 003626 The auxiliary contact is normally closed when the transfer switch is in utility mode. The contacts will open when the transfer switch is in the standby power mode. NOTE. Auxiliary Contact is rated 10 amps at 125 or 250 volts AC, and 0.6 amps at 125 volts DC. ACAUTION Equipment damage. Exceeding rated voltage and current will damage the auxiliary contacts. Verify that voltage and current are within specification before energizing this equipment. (000134a) Fault Current Label See Figure 3-5. A Fault Current Identification Label is provided in the bag containing the unit Owner's Manual and transfer switch manual operating handle. The 2017 NEC requires that the short-circuit current rating of the transfer equipment, based on the type of overcurrent protective device protecting the transfer equipment, be field marked on the exterior of the transfer equipment. For NEC compliance, verify the required short-circuit current rating of the transfer switch before installation.The completed label provides the local AHJ (Authority Having Jurisdiction) with the information he or she may require during inspection. Apply the label to the exterior of the transfer switch enclosure. Use a pen to fill in the required information, and then cover the label with the clear protective decal. FAULT CURRENT RATING AVAILABLE FAULT CURRENT I_ DATE Figure 3-5. Fault Current Label 004496 Automatic Transfer Switch Owner's Manual 13