TTS Series ILC-200 Integrated Load Center

Transcription

1 TTS Series ILC-200 Integrated Load Center Owner s Manual MODEL NUMBER: (NEMA 3R) and (NEMA 1) SERIAL NUMBER: DATE PURCHASED: Register your Generac product at: GENERAC ( ) Para español, visita: support/product support lookup Pour le français, visiter : support/product support lookup SAVE THIS MANUAL FOR FUTURE REFERENCE

2 WARNING Operating, servicing and maintaining this equipment can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your equipment in a well-ventilated area and wear gloves or wash your hands frequently when servicing your equipment. For more information go to (000393) ii Integrated Load Center Owner s Manual

3 Table of Contents Section 1: Introduction and Safety Introduction...1 Safety Rules...1 Safety Symbols and Meanings...2 Section 2: General Information Unpacking...3 Equipment Description...3 Service Disconnect...3 Transient Voltage Surge Suppression...3 Automatic Transfer Switch...4 Panel Board...4 Transfer Mechanism...4 Ratings Data Label...5 Panel Board Enclosure...5 Safe Use of Transfer Switch...5 Transfer Switch Mechanism...5 Transfer Switch Data Decal...5 Section 3: Installation Introduction to Installation...7 Mounting the Enclosure...7 Connecting Power Source and Load Lines Pole Mechanism...7 Connecting Start Circuit Wires...8 On-Site Generator Connections...8 Battery Charger...9 Auxiliary Contacts...9 Section 4: Operation Functional Tests and Adjustments...11 Manual Operation...11 Close to Normal Source Side...11 Close to Generator Source Side...12 Return to Utility Source Side...12 Voltage Checks...12 Utility Voltage Checks...12 Generator Voltage Checks...13 Main Contacts at Normal (Utility)...14 Main Contacts at Neutral...14 Main Contacts at Standby (Emergency)...14 Sequence of Operation...15 Sequence 1 - Voltage/Frequency Dropout...15 Sequence 2 - Line Interrupt Delay...15 Sequence 3 - Engine Minimum Run and Warmup Timers...15 Sequence 4 - Standby Voltage and Frequency Sensors...15 Sequence 5 - Voltage Pickup...15 Sequence 6 - Return to Utility Timer...15 Sequence 7 - Engine Cool Down Timer...15 The Human Machine Interface (HMI)...16 Home Screen...16 Status...16 Sequence of Operation Settings...17 Pushbutton Arrow...17 Configuration Menu...17 Transfer Switch Settings # Transfer Switch Settings # Transfer Switch Settings # Transfer Switch Settings # Exercise and Clock Setup...19 Exercise Setup...20 Manual Tests...20 Input/Output Signal Maintenance...21 Voltage Measurement Display...21 Voltage Measurement Maintenance...21 System Status...21 System Utility Menu # System Utility Menu # Generator Tests Under Load...23 Checking Automatic Operation...23 Installation Summary...23 Shutting Generator Down While Under Load...24 Section 5: Maintenance Operate Transfer Switch...25 Clean and Inspect Transfer Switch...25 Main Current Carrying Contacts...25 Twelve-Volt Batteries (Two)...25 Lubrication...25 Automatic Transfer Switch Owner s Manual iii

4 Section 6: Modbus Map Description Communication Settings Modbus Settings RS232 Pinout Data Map Section 7: Drawings and Diagrams Assembly Drawing ( , 1 of 3) Assembly Drawing ( , 2 of 3) Assembly Drawing ( , 3 of 3) Schematic Drawing (0L4633-C, 1 of 2) Schematic Drawing (0L4633-C, 2 of 2) Wiring Diagram (0L4634-C, 1 of 2) Wiring Diagram (0L4634-C, 2 of 2) Installation Drawing (0L4635-A, 1 of 2) Installation Drawing (0L4635-A, 2 of 2) iv Automatic Transfer Switch Owner s Manual

5 Introduction and Safety Section 1: Introduction and Safety 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. If any section of the manual is not understood, contact your nearest authorized dealer, or contact Generac Customer Service at GENERAC ( ), or with any questions or concerns. The owner is responsible for proper maintenance and safe use of the equipment. Before operating or servicing this transfer switch: Study all warnings in this manual and on the product carefully. Become familiar with this manual and the unit before use. Refer to the Assembly section of the manual for instructions on final assembly procedures. Follow the instructions completely. Save these instructions for future reference. ALWAYS supply this manual to any individual that will use this machine. The information in this manual is accurate based on products produced at the time of publication. The manufacturer reserves the right to make technical updates, corrections, and product revisions at any time without notice. DANGER Indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING (000001) Indicates a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION (000002) Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. (000003) NOTE: Notes contain additional information important to a procedure and will be found within the regular text of this manual. These safety alerts cannot eliminate the hazards that they indicate. Common sense and strict compliance with the special instructions while performing the action or service are essential to preventing accidents. Safety Rules The manufacturer cannot anticipate every possible circumstance that might involve a hazard. The warnings in this manual, and on tags and decals affixed to the unit are not all inclusive. If using a procedure, work method, or operating technique that the manufacturer does not specifically recommend, verify that it is safe for others. and does not render the equipment unsafe. Throughout this publication, and on tags and decals affixed to the transfer switch, DANGER, WARNING, CAUTION, and NOTE blocks are used to alert personnel to special instructions about a particular operation that may be hazardous if performed incorrectly or carelessly. Observe them carefully. Their definitions are as follows: Integrated Load Center Owner s Manual 1

6 Introduction and Safety Safety Symbols and Meanings DANGER Electrocution. High voltage is present at transfer switch and terminals. Contact with live terminals will result in death or serious injury. (000129) DANGER Electrocution. Water contact with a power source, if not avoided, will result in death or serious injury. (000104) DANGER Electrocution. In the event of electrical accident, immediately shut power OFF. Use non-conductive implements to free victim from live conductor. Apply first aid and get medical help. Failure to do so will result in death or serious injury. (000145) DANGER Automatic start-up. Disconnect utility power and render unit inoperable before working on unit. Failure to do so will result in death or serious injury. (000191) WARNING Electric shock. Only a trained and licensed electrician should perform wiring and connections to unit. Failure to follow proper installation requirements could result in death, serious injury, and equipment or property damage. (000155a) WARNING 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) DANGER Electrical backfeed. Use only approved switchgear to isolate generator from the normal power source. Failure to do so will result in death, serious injury, and equipment damage. (000237) DANGER Electrocution, equipment and property damage. Handle transfer switches carefully when installing. Never install a damaged transfer switch. Doing so could result in death or serious injury, equipment and property damage. (000195) DANGER Electrocution. Turn utility supply OFF before working on utility connections of the transfer switch. Failure to do so will result in death or serious injury. (000123) Any voltage measurements should be performed with a meter that meets UL3111 safety standards, and meets or exceeds overvoltage class CAT III. DANGER Electrocution. Do not disable or modify the connection box door safety switch. Doing so will result in death or serious injury. (000157) 2 Integrated Load Center Owner s Manual

7 Section 2: General Information General Information Unpacking Carefully unpack the ILC. Closely inspect for any shipping damage. The purchaser must file with the carrier any claims for loss or damage incurred while in transit. Verify all packing material is completely removed from the ILC prior to installation. WARNING Personal injury. Excessive weight. Use only appropriate lifting eyes and lifting equipment to lift unit. Improper lifting techniques could result in equipment damage, death or serious injury. (000224) Attach an appropriate lifting device to the lifting eyes on top of the enclosure. The ILC transfer switch weighs about 350 lbs. Equipment Description The TTS (ILC) transfer switch is available in two enclosure types: NEMA 1 for indoor applications (model ), and NEMA 3R for outdoor applications (model ). Service Disconnect This unit is equipped with a 200A circuit breaker for each source of supply: utility and generator. This circuit breaker can serve as the service disconnect for each. Transient Voltage Surge Suppression The Transient Voltage Surge Suppression (TVSS) is provided to protect the load from electrical surges or transient voltage spikes. This device is physically located next to the service disconnect circuit breakers and electrically connected to the load side of the service disconnect. A TVSS module is always supplied to protect the utility supply; the generator supply TVSS protection is provided in some models. A 30A circuit breaker is provided to disconnect the TVSS from the live ILC for maintenance or replacement. The TVSS is made up of multiple solid state Metal Oxide Varistors (MOV) connected in parallel for each mode of protection. These devices are equipped with integrated short circuit and individual component level fusing. They are self-resetting and fully automatic. Modes of Protection The TVSS provides protection on all modes: Single Phase (6): L-L, L-N, L-N, L-G, L-G and N-G. Ratings Surge Capacity:100 ka per mode. Suppression Level (typical): L-N = 330 V L-G = 400 V N-G = 400V L-L = 700 V Certification The TVSS is UL recognized to the requirements of UL rd edition. TVSS Disconnect Each TVSS is provided with a disconnect. The disconnect is a 30A circuit breaker, 2-pole for single phase. This is to allow replacement of the TVSS module without interruption of the electrical supply to the load. WARNING Electric shock. Only a licensed electrician should work on an energized ATS-ILC. Work performed by non-qualified persons could result in death, serious injury, or equipment damage. (000225a) NOTE: Turn on the TVSS disconnect circuit breaker when the procedure is complete. If the circuit breaker is not turned on, the TVSS module will not provide any surge protection for the customer load. Status Indicators Each TVSS module has comprehensive, solid state, continual visual status monitoring of each protection mode present. There are two LEDs provided, located on the cover of the module. The green LED (left side) is used to indicate that the TVSS module is energized and in working order. The red LED (right side) will turn on in the event the suppressor capability is exceeded or if there is an internal safety component activating. When the power is first applied, the unit does a brief internal diagnostic test. During this test, the red LED will illuminate briefly, turn off, and then the green LED will illuminate. For the power source to be available, the associated service disconnect circuit breaker must be on, the associated TVSS disconnect circuit breaker must be on, and the associated source must be present. Integrated Load Center Owner s Manual 3

8 General Information The LED status indicators can be viewed from the outside of the enclosure or directly on the TVSS module with the enclosure door open. Remote Alarm Contacts Each TVSS module is equipped with a set of alarm contacts to indicate the TVSS module protection status, to an external alarm. This is available as a full set of dry relay contacts (C, NO, NC). The contact ratings are 3A 250V AC or DC maximum. The contacts are wired to a three position terminal strip for customer connection. If the contacts change state, it indicates either a power failure to the TVSS module or a failure of the TVSS module. Automatic Transfer Switch The automatic transfer switch is used for transferring critical electrical load from a normal (utility) power source to a standby (emergency) power source. Transfer of electrical loads occurs automatically when the normal power source has failed or is substantially reduced and the standby source voltage and frequency have reached an acceptable level. The transfer switch prevents electrical feedback between two different power sources (such as the normal and standby sources) and codes require it in all standby electric system installations. Transfer Mechanism The transfer mechanism houses the main currentcarrying contacts, along with other mechanical and electrical components required for operating the switch (Figure 2-1). Main contacts are actuated by a single solenoid, are electrically operated, and mechanically held. Power for that coils operation is taken from the side to which the load is being transferred. Transfer to any power source cannot occur unless that power source is available to the switch. Load (or T ) contacts are bolted to an insulated plastic pole piece and are stationary. The normal (utility) and standby (emergency) contacts are movable. The contacts are actuated by means of a closing coil and mechanical linkage. The pole assemblies which retain the stationary movable main contacts are assembled together and retained by through-bolts. Either 2, 3, or 4- pole assemblies may be used to form a 2, 3, or 4-pole mechanism. Panel Board This unit is provided with a 250 Amp rated 42 position panel board (manufactured by Siemens; Type P1) for mounting of individual branch circuit breakers. Single phase ILC's are equipped with a single phase panel board. It is factory wired and the customer connection is made here. Voltage Rating 240 volt maximum when used with BL, BLH, and QJH2 branch circuit breakers. Amperage Rating The panel interior has been tested to 250A, however is limited to 200A in this application. The limitation comes from the service disconnect circuit breakers ratings. Recommended Circuit Breakers Only circuit breakers manufactured by Siemens Energy & Automation, Inc. are recommended for use in this equipment. This panel board is UL component recognized only when used with Siemens type BL, BLH, BLE, BLR, BLF, BAF, HBL, BQD, or QJH2 and at a suitable current rating for the branch circuit. Reference Siemens type P1 Panelboards as required. Blank covers must be installed in all open spaces (no circuit breaker installed), before putting the system in service. Use ONLY Siemens catalog number QF-3. Figure 2-1. The Transfer Mechanism Integrated Load Center Owner s Manual

9 General Information Ratings Data Label This ILC is rated 200A at 120/240 or 120/208 VAC single phase. The Short Circuit Withstand and Close-On Withstand rating is 35,000 Amps. A data label is permanently affixed to the transfer switch subplate. Use this ILC only within the specific limits shown on the data label and the application decal located on the inside lower left side of the cabinet. When requesting information or ordering parts for this equipment, make sure to include all information from the data label. Record the model and serial numbers in the space provided on the front cover for future reference. Panel Board Enclosure The standard TTS (ILC) switch is a NEMA type 1 indoor enclosure. Outdoor enclosure is optional. Safe Use of Transfer Switch WARNING 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. Strictly comply 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. Read all instructions and information found on tags, labels, and decals affixed to the equipment. 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 UL 67, STANDARD FOR SAFETY-PANEL BOARDS The 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 codes require it in all standby electric system installations. The transfer switch consists of a transfer mechanism, a control relay, fuses, terminal strip, and fuse holder for connection of sensing wires. The transfer switch is listed for use on optional standby systems only (NEC 702). Transfer Switch Mechanism The 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: Power Connections Breaker Transfer Switch Current Rating 200A Lug Wire Range 6 AWG MCM 4 AWG MCM Lug Tightening Torque Transfer Switch Data Decal Lug Temp. Rating 250 in-lbs (28.2 Nm) 167 F 375 in-lbs (75 C) (42.4 Nm) 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, 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 Publications that outline the safe installation and manufacturing of transfer switches are the following: NFPA 70; National Electrical Code UL 1008, STANDARD FOR SAFETY-AUTOMATIC TRANSFER SWITCHES UL67 Panel boards NOTE: It is essential to use the latest version of any standard to ensure correct and current information. Integrated Load Center Owner s Manual 5

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11 Section 3: Installation Introduction to Installation This equipment has been wired and tested at the factory. Installing the switch includes the following procedures: Unpacking the TTS (ILC). Mounting the enclosure. Connecting power source and load leads. Connecting the generator start circuit. Connecting any auxiliary contact (if needed). Installing/connecting any options and accessories. Testing functions. Mounting the Enclosure DANGER Electrocution. Turn utility supply OFF before working on utility connections of the transfer switch. Failure to do so will result in death or serious injury. (000123) DANGER Equipment malfunction. Installing a dirty or damaged transfer switch will cause equipment malfunction and will result in death or serious injury. (000119) WARNING Equipment damage. Only qualified service personnel may install, operate, and maintain this equipment. Failure to follow proper installation requirements could result in death, serious injury, and equipment or property damage. (000182a) Installation 2. Mount transfer switch to mounting surface with appropriate fasteners. 3. Protect the switch against impact at all times, and against construction grit and metal chips. Never install a transfer switch that has been damaged. NOTE: Install the transfer switch as close as possible to the electrical loads that are to be connected to it. NOTE: Transfer switch must be mounted vertically. To prevent switch distortion, level all mounting points. If necessary, use washers behind mounting holes to level the unit. Connecting Power Source and Load Lines DANGER 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) IMPORTANT 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. 2-Pole Mechanism The 2-Pole mechanism (Figure 3-1) utilizes a single solenoid design. Utility connections are N1 & N2. Load terminals are T1 & T2. Standby terminals are E1 & E2. Mounting dimensions for the transfer switch enclosure are in this manual. Enclosures are typically wallmounted. See Drawings and Diagrams. WARNING Personal injury. Excessive weight. Use only appropriate lifting eyes and lifting equipment to lift unit. Improper lifting techniques could result in equipment damage, death or serious injury. (000224) IMPORTANT NOTE: To eliminate the possibility of debris contamination, never drill inside the enclosure. 1. Drill the appropriate size holes for mounting hardware at marked hole locations Figure 3-1. Typical 2-Pole Transfer Mechanism Integrated Load Center Owner s Manual 7

12 Installation Conductor sizes must be adequate to handle the maximum current to which they will be subjected, based on the 167 F (75 C) column of tables, charts, etc. used to size conductors. 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. NOTE: If aluminum conductors are used, apply corrosion inhibitor to conductors. After tightening terminal lugs, carefully wipe away any excess corrosion inhibitor. Tighten terminal lugs to the torque values as noted on the inside of the door. CAUTION 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) All power cables should enter the switch next to the service disconnect circuit breaker terminals. Standard terminal lugs on the service disconnect are solderless, screw-type. Connect power source and load conductors to clearly marked terminal lugs on the ILC as follows: LOAD leads: Connect to individual branch circuit breaker terminals. NORMAL (UTILITY) Source Leads: Connect to service disconnect circuit breaker. STANDBY (EMERGENCY) Source Leads: Connect to service disconnect circuit breaker. Connecting Start Circuit Wires On-Site Generator Connections Connect suitable, approved wiring to transfer switch terminals 178 and 183 (see chart below). Route these wires through suitable, approved individual conduit and connect to 183 and 0 (178) terminals in the connection (lower) panel of the generator set. See Figure 3-2. Closure of wire 178 and 183 circuit by switch circuit action must result in generator engine cranking and startup. Recommended wire gauge sizes for this wiring depends on the length of the wire, as recommended below: Maximum Wire Length Recommended Wire Size ft (0 140 m) No. 18 AWG ft ( m) No. 16 AWG ft ( m) No. 14 AWG ft ( m) No. 12 AWG Figure 3-2. On-Site Generator Connections Integrated Load Center Owner s Manual

13 Installation Battery Charger DANGER Automatic start-up. Disconnect utility power and render unit inoperable before working on unit. Failure to do so will result in death or serious injury. (000191) While the generator is in standby mode (when utility source power is available), 120VAC from utility to the transfer switch maintains the battery charger. The battery charger wire terminates in a 4-pin connector. 1. To activate the battery charger, first make sure the 4-pin connector is connected. Then lift and release the battery charger toggle switch. 2. If utility and standby sources are unavailable for more than 24 hours, disconnect 4-pin connector. 3. Reconnect 4-pin connector before resuming normal use. Auxiliary Contacts There is access to auxiliary contacts on the transfer switch to operate customer accessories, remote advisory lights, or remote annunciator devices. A suitable power source must be connected to the COMMON (C) terminal. The contacts shown as FACTORY in Figure 3-2 are connected at the factory for operating transfer switch advisory lights. The contacts shown as auxiliary are available for customer use. Contact operation is shown in the following chart: Switch Position Utility Standby Common to Normally Open Closed Open Common to Normally Closed Open Closed Auxiliary contacts are rated 10A at 125 or 250 volts AC. Do not exceed the rated voltage and current of the contacts Figure 3-3. Auxiliary Contact Diagram Integrated Load Center Owner s Manual 9

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15 Section 4: Operation Functional Tests and Adjustments Following transfer switch installation and interconnection, inspect the entire installation carefully. A competent, qualified electrician should inspect it. The installation should comply strictly with all applicable codes, standards, and regulations. When absolutely certain the installation is proper and correct, complete a functional test of the system. CAUTION Equipment damage. Perform functional tests in the exact order they are presented in the manual. Failure to do so could result in equipment damage. (000121) IMPORTANT NOTE: Before proceeding with functional tests, read and make sure all instructions and information in this section is understood. Also read the information and instructions of labels and decals affixed to the switch. Note any options or accessories that might be installed and review their operation. Manual Operation Operation DANGER Electrocution. Do not manually transfer under load. Disconnect transfer switch from all power sources prior to manual transfer. Failure to do so will result in death or serious injury, and equipment damage. (000132) CAUTION Equipment damage. Do not use excessive force while manually operating the transfer switch. Doing so could result in equipment damage. (000122) See Figure 4-1. A manual handle is shipped with the transfer switch. Manual operation must be checked BEFORE the transfer switch is operated electrically. Proceed as follows to check manual operation: Close to Normal Source Side 1. Verify the generator is OFF. 2. Turn OFF both utility (service disconnect circuit breaker) and standby (generator main line circuit breaker) power supplies to the transfer switch. 3. Note position of transfer mechanism main contacts by observing display windows in A and B in Figure 4-1 as follows: Window A ON, Window B OFF - LOAD terminals (T1, T2) are connected to normal terminals (N1, N2). No manual operation is required. Window A OFF, Window B ON - Load terminals (T1, T2) are connected to standby terminals (E1, E2). Slowly push manual operating handle down and gently release. Window "A" ON should now be indicated. 4. Proceed with Close to Generator Source Side. NOTE: Return the handle to the storage position in the enclosure when finished with the manual transfer. Integrated Load Center Owner s Manual 11

16 Operation Close to Generator Source Side Verify the position of the switch by observing the position of the switch in the B window. If the B window is ON, the switch is in the standby position. No further action is required. 1. Insert the manual handle. Slowly push the manual handle down and gently release. Window "B" ON should now be indicated. 2. Return handle to enclosure storage location when completed. Return to Utility Source Side 1. Verify switch is in standby mode ("A" is ON in standby window B). 2. Insert the manual operating handle. Slowly push down and gently release. Window A utility should now indicate ON. 3. Return handle to enclosure storage location when completed. Figure 4-1. Actuating Transfer Switch Voltage Checks Utility Voltage Checks 1. Turn on the utility power supply to the transfer switch using the breaker in main distribution panel. DANGER Electrocution. High voltage is present at transfer switch and terminals. Contact with live terminals will result in death or serious injury. (000129) 2. With an accurate AC voltmeter, check for correct voltage. Measure across ATS terminal lugs N1 and N2; N1 to NEUTRAL and N2 to NEUTRAL. DANGER Electrocution. Turn utility supply OFF before working on utility connections of the transfer switch. Failure to do so will result in death or serious injury. (000123) 12 Integrated Load Center Owner s Manual

17 Operation Generator Voltage Checks DANGER Electrocution. High voltage is present at transfer switch and terminals. Contact with live terminals will result in death or serious injury. (000129) 1. Inside the transfer switch enclosure, set the maintenance disconnect switch to MANUAL. 2. If the generator is so equipped, set the AUTO/OFF/ MANUAL switch to OFF. 3. On the ATS mechanism, check that the word ON is visible in Window A, the word OFF in Window B. See MANUAL OPERATION for location of A and B windows. 4. Locate the 4-pin connector on the battery charger. Plug the 4-pin harness connector into the battery charger. Reset battery charger by momentarily pressing up on toggle switch. IMPORTANT NOTE: DO NOT PROCEED UNTIL STEPS 1, 2, 3, AND 4 HAVE BEEN COMPLETED. NOTE: If both utility and generator sources are unavailable for more than 24 hours, disconnect the battery by unplugging the 4-pin connector on the battery charger. 5. Turn on the normal (utility) power supply to the transfer switch, with whatever means provided (such as the main line circuit breaker [MLCB]). 6. Reset battery charger by momentarily pressing up on battery charger toggle switch. IMPORTANT NOTE: The transfer switch is now electrically hot. Proceed with caution. 7. With an accurate AC voltmeter, check the phaseto-phase (line-to-line) and phase-to-neutral (line-toneutral) voltages present at transfer mechanism terminals N1 and N2 (if so equipped), and neutral. SUPPLIED VOLTAGES MUST BE FULLY COMPATIBLE WITH TRANSFER SWITCH RATED VOLTAGE. 8. Referring to the standby generator owner s manual, verify the generator engine has been properly serviced and prepared for use. Then start the generator engine manually. Let the engine stabilize and warm up for a few minutes. 9. Turn on the standby (generator) power supply to the transfer switch by whatever means provided (such as the MLCB). 10. With the generator running, check that the generator source available LED on the enclosure door is on. 11. With an accurate AC voltmeter, check phase-to phase (line-to-line) and phase-to neutral (line-to neutral) voltages present at transfer mechanism terminals E1 and E2 (if equipped). Verify AC frequency at those terminals. The engine governor may require adjustment if frequency is incorrect. Generator AC output voltage and frequency must be compatible with transfer switch rated voltage and frequency. 12. If supplied voltage or frequency is incorrect, refer to appropriate standby generator diagnostic manual. Adjust engine governed speed if AC frequency is incorrect. Adjust generator s voltage regulation to correct the problem if voltage is incorrect. 13. When supplied voltage and frequency is correct, shut down the engine manually. WARNING Electric Shock. Supply voltages of power lines must be compatible with transfer switch. Incompatible supply voltages could result in equipment damage, death or serious injury. (000227) 14. Connect the transfer switch load to the transfer switch when Voltage Checks section has been completed. Connect the load to the transfer switch by whatever means provided (such as branch circuit, circuit breaker[s]), then proceed with Main Contacts at Normal (Utility). Integrated Load Center Owner s Manual 13

18 Operation Main Contacts at Normal (Utility) See Figure 4-2. Load terminals are connected to the normal (utility) terminals. Window A will display the word ON ; Window B the word OFF. A B Utility source selected: A position ON, B position OFF A Load B Emergency B position C Utility A position Figure 4-2. Main Contacts at Normal (Utility) Main Contacts at Neutral a See Figure 4-3. Load terminals are disconnected from both power supply terminals. The word OFF will be displayed in both Windows A and B.. This occurs when the solenoid coil is kept energized. This position cannot occur utilizing the manual handle operator. It is only during electrical operation that both contacts are momentarily held open via the control's neutral time delay (TDN) feature. C Main Contacts at Standby (Emergency) See Figure 4-4. Load terminals are connected to the standby (emergency) power supply. Window B will display the word ON ; Window A the word OFF (Figure 4-4). A A B C B Emergency source selected: A position OFF, B position ON Load Emergency B position Utility A position Figure 4-4. Main Contacts at Standby (Emergency) C a B C A a Neutral (tripped) position: A and B positions both OFF A Load B Emergency B position C Utility A position Figure 4-3. Main Contacts at Neutral 14 Integrated Load Center Owner s Manual

19 Operation Sequence of Operation When acceptable utility source voltage is available, observe the following sequences. Sequence 1 - Voltage/Frequency Dropout Utility source voltage/frequency drops below the utility fail-low voltage/frequency or is above utility fail-high voltage/frequency set point. Sequence 2 - Line Interrupt Delay Utility source voltage is above or below utility fail range setting. Line interrupt delay is initiated by the voltage or frequency out of range condition. If utility source remains out of range longer than the delay setting, circuit board action closes the automatic start circuit (wires 178 and 183). When that circuit closes, the engine cranks and starts as controlled by a circuit board in the generator s control panel. Once the standby generator starts and produces voltage, go to sequence 3. Sequence 3 - Engine Minimum Run and Warmup Timers The minimum run timer establishes the minimum length of time for the generator to run before it can be shut down. The timer prevents shutdown of a cold engine. The timer is adjustable from 5 30 minutes; factory setting is 5 minutes. An engine warmup timer is also turned on. This timer permits the engine to stabilize and warm up before loads are transferred to standby. This timer is adjustable from 0 seconds to 3 minutes. Factory setting is 5 seconds. If utility voltage remains within the range from sequence 5 for the time interval of the return to utility timer setting, loads are transferred back to the utility source. Sequence 7 - Engine Cool Down Timer The engine cool down timer starts after the switch transfers loads back to utility. When the interval has timed out, the automatic start circuit (wires 178 and 183) is opened, and the engine shuts down. The timer permits the engine to run at no load for a fixed time, so the engine internal temperature can stabilize before shutting down. The timer can be set anywhere between 1 30 minutes. Factory setting is about 5 minutes. NOTE: Actual time between transfer to utility and engine shutdown is whichever is longer the engine cool down timer setting or any time remaining on engine minimum run timer. After the switch automatically transfers loads back to the utility power source and the generator has shut down, the system is ready for sequence 1 again. Sequence 4 - Standby Voltage and Frequency Sensors If generator AC output voltage and frequency are above the voltage and frequency set points, loads transfer to the generator power source. Sequence 5 - Voltage Pickup If the utility voltage is restored in the range between the utility pickup-low voltage and high voltage values with hysteresis, sequence 6 will begin. Sequence 6 - Return to Utility Timer This timer prevents transfer that a utility source voltage surge or transient might cause. Adjust timer between 1 30 minutes. Factory setting is 1 minute. Integrated Load Center Owner s Manual 15

20 Operation The Human Machine Interface (HMI) The Human Machine Interface (HMI) is mounted on the door, and communications are accessible from behind the access door. The HMI is used to view status of the ATS operation and to change the settings of the timers and controls. All settings can be viewed on the various screens. To change any of the settings will require a password. NOTE: Inside the transfer switch enclosure, the maintenance disconnect switch should be in automatic mode for automatic operation. The rear of the HMI utilizes a DB9 connector to provide Modbus communications. See Modbus Map for connection and map of addresses. Home Screen The Home screen comes up first when the screensaver is cleared. It also gives an overview of the connections and status of transfer switch and MANUAL/AUTO maintenance switch position (Figure 4-5). Status The mimic diagram shows the position of the manual generator transfer switch and the automatic transfer switch. SYSTEM READY: The system ready indicator is green when the following conditions are met; 1) maintenance disconnect switch is in the AUTO position, 2) the manual generator transfer switch is closed in one position, indicating that the transfer switch is ready for a utility outage, 3) TVSS status is good. EXERCISING: The exercising indicator is green when the engine generator is running an exercise cycle. 16 Integrated Load Center Owner s Manual

21 Operation Sequence of Operation Settings Summary of Parameters Parameter Range Default Value Utility Fail High Voltage 105% < > 125% of System Voltage 110% Utility Fail Low Voltage 75% <-> 95% of System Voltage 90% Utility Fail High Frequency 61 <-> 69 Hz 63 Hz Utility Fail Low Frequency 51 <-> 58 Hz 51 Hz Utility Pickup high voltage hysteresis Utility Fail - 5 volts (fixed) N/A Utility Pickup low voltage hysteresis Utility Fail + 5 volts (fixed) N/A Utility Interrupt Delay 0 <-> 60 seconds 5 seconds Utility Return Delay 1 <-> 30 minutes 1 minute Generator load accept voltage 85% <-> 95% of system voltage 90% Generator load accept frequency 51 <-> 57 Hz 55 Hz Time delay neutral 0 <-> 10 seconds 5 seconds Engine Warm-up Time 0 <-> 180 seconds 5 seconds Minimum Run Time 5 <-> 30 minutes 5 minutes Engine Cooldown Time 1 <-> 30 minutes 5 minutes Pushbutton Arrow When pressed, the HMI screen will change to display the configuration menu. Configuration Menu The configuration menu screen is used to select and transition to the other screens of the HMI display. To select the desired screen press the button to the left of the description (Figure 4-6). The software version numbers are also displayed at the bottom of the screen. The home button, in the lower right corner of the screen is used to return to the home screen Figure 4-5. Home Screen Figure 4-6. Configuration Menu Integrated Load Center Owner s Manual 17

22 Operation Transfer Switch Settings #1 The transfer switch settings are divided into three screens. The second screen can be accessed by pressing the right arrow button. To return to the system configuration menu screen press the return arrow (Figure 4-7). Inphase or TDN - The inphase or TDN selection is made by pressing the button next to it. The selection toggles with each press of the button. The transfer switch waits for utility and standby voltage phasors to match prior to transfer to utility. Transfer Delay Neutral (TDN) - To set the transfer delay, press the button where the current transfer delay is displayed. Enter the time delay neutral time in seconds using the pop-up box. The acceptable range is shown on the screen. Press ENTER to update. System Voltage Selection - Perform this selection before the system voltage phase selection. Press the button labeled SELECT SYSTEM VOLTAGE to set the system voltage. The display will toggle between 208V and 240V. Note: 208V is only available in a 3-phase system voltage. System Voltage Phase Selection - Press the button labeled SELECT SINGLE or 3-PHASE SYSTEM to set the number of phases of the system. The display will toggle between single and 3-phase with a 240V system. Utility Fail-Low Voltage Threshold - Press the screen button that is displaying the current value to set this value. Enter the voltage that will signal a utility fail condition using the pop-up box. The acceptable range is shown on the screen. Press ENTER to change setting. Utility Fail Delay - This is the amount of time that the utility voltage must remain out of range before a utility fail sequence will be initiated. Press the screen button that is displaying the current value to set this value. Enter the delay time in seconds using the pop-up box. The acceptable range is shown on the screen. Press ENTER to change setting. Utility Pickup-High Voltage Threshold - This box displays the voltage that the utility must be at or under to be considered good. It is equal to the utility fail high voltage threshold minus 5 volts. Utility Pickup-Low Voltage Threshold - This box displays the voltage that the utility must be at or over to be considered good. It is equal to the utility fail low voltage threshold plus 5 volts. Utility Pickup Delay - This is the amount of time that the utility voltage must remain within range before a utility pickup sequence will be initiated. Press the screen button that is displaying the current value to set this value. Enter the delay time in minutes using the pop-up box The acceptable range is shown on the screen. Press ENTER to change setting. Generator Load Accept-Voltage Threshold - Press the screen button that is displaying the current value to set this value. Enter the voltage that will signal a utility pickup condition using the pop-up box. The acceptable range is shown on the screen. Press ENTER to change setting. Generator Load Accept-Frequency - Press the screen button that is displaying the current value to set this value. Enter the frequency that will signal a utility pickup condition using the pop-up box. The acceptable range is shown on the screen. Press ENTER to change setting Figure 4-7. Transfer Switch Settings #1 Transfer Switch Settings #2 This is the second screen of the transfer switch settings screens. The first or third screen can be accessed by pressing the left or right arrow buttons. To return to the system configuration menu screen press the return arrow (Figure 4-8). Utility Fail-High Voltage Threshold - Press the screen button that is displaying the current value to set the utility fail-high voltage threshold value. Enter the voltage that will signal a utility fail condition using the pop-up box. The acceptable range is shown on the screen. Press ENTER to change setting. Figure 4-8. Transfer Switch Settings # Integrated Load Center Owner s Manual

23 Operation Transfer Switch Settings #3 This is the third screen of the transfer switch settings screens. The second screen can be accessed by pressing the left arrow button. To return to the system configuration menu screen press the return arrow (Figure 4-9). Engine Warm Up Timer - Press the screen button that is displaying the current value to set this value. Enter the warm up time in seconds using the pop-up box. The acceptable range is shown on the screen. Press ENTER to change setting. Engine Cool Down Timer - To set this value, press the screen button that is displaying the current value. Using the pop-up box, enter the engine cool down time in minutes. The acceptable range is shown on the screen. Press ENTER to change setting. Minimum Run Timer - To set this value, press the screen button that is displaying the current value. Using the pop-up box, enter the minimum run time in minutes. The acceptable range is shown on the screen. Press ENTER to change setting. Low Frequency Threshold (Utility Low Fail Frequency Setting +/- 1Hz) A utility frequency below this setting will inhibit transfer to utility source. Figure Transfer Switch Settings #4 Exercise and Clock Setup This is the screen to set the system clock and exercise functions (Figure 4-11). To return to the system configuration menu screen press the return arrow. System Time and Date - The time is displayed in a 24 hour format. To set the system clock, press the screen button next to the text. Using the pop-up box, highlight the setting to be changed with the left and right arrows. Use the + and - buttons to change the setting. Press ENTER to update the setting (Figure 4-11). Exercise Setup - To setup the exercise function, press the screen button next to the text. This will bring up the exercise setup screen on the next screen Figure 4-9. Transfer Switch Settings #3 Transfer Switch Settings #4 This is the fourth screen of the Transfer Switch settings screens. The third screen can be accessed by pressing the left arrow button. To return to the system configuration menu screen press the return arrow (Figure 4-10). Utility Fail Frequency Settings (Hz): High Frequency Threshold A utility frequency above this setting will cause a transfer to standby source. Low Frequency Threshold A utility frequency below this setting will cause a transfer to standby source. Utility Pickup Frequency Settings (Hz): High Frequency Threshold (Utility High Fail Frequency Setting +/- 1Hz) A utility frequency above this setting will inhibit transfer to utility source. Figure Exercise and Clock Setup Integrated Load Center Owner s Manual 19

24 Operation Exercise Setup See Figure To return to the exercise and clock setup menu screen press the left arrow. To return to the system configuration menu screen press the return arrow. Exercise Day - To set the exercise day, press the screen button to the left of the text. The days of the week will increment one at a time. Exercise Time - To set this value, press the screen button to the left of the text (Figure 4-13). Using the popup box, enter a 24 hour clock value between Press ENTER to update the setting. Exercise Duration - To set this value, press the screen button to the left of the text. Using the pop-up box, enter the exercise duration in minutes. Press ENTER to change the setting. Days Between Exercises - The choices are 7, 14, or 28 days between exercise periods. To set the days between exercise cycles, press the screen button to the left of the text. Transfer on Exercise - The choices are to transfer on exercise or to not transfer on exercise. To set the transfer on exercise function, press the screen button to the left of the text. The setting will toggle between transfer on exercise or to not transfer on exercise. Manual Tests This screen is used to access the test functions of the transfer switch controller (Figure 4-14). To return to the system configuration menu screen press the return arrow. Test Function - To select the normal test function, press the TEST button. This will initiate the test function with the normal timer settings (similar to a utility fail and restore sequence). The engine generator will start and warm-up. The transfer switch will transfer to connect the load to the generator supply. Press it again to return to normal operation or press the RETURN TO NORMAL button. Fast Test Function - To select the fast test function, press the FAST TEST button. This will initiate the test function with all timer settings sped up to less than 2 seconds. The generator will start and warm-up. The transfer switch will transfer to connect the load to the generator supply. 5 seconds after transferring to the generator, the transfer switch will transfer back to utility. The generator will then shut down. Figure Exercise Setup Figure Manual Tests Return to Normal - This function is used to end the test function. Press the RETURN TO NORMAL button to start the Return to Normal timer and the transfer switch will transfer the load back to the Utility supply. The engine will continue to operate until the engine cooldown timer times out or the minimum run timer times out, whichever is longer. Reset Alarms - This button is used to clear any in-phase transfer alarms. Figure Exercise Time Integrated Load Center Owner s Manual

25 Operation Input/Output Signal Maintenance See Figure To access the second screen, press the right arrow button. To return to the system configuration menu screen press the return arrow. The indicator to the left of the individual input or output text will indicate the status of the input. A green color indicates the input or output is active and the condition it is indicating is true. A black color will indicate the input or output is not active and the condition it is indicating is not true. For the maintenance disconnect indicator; red means MANUAL and green means AUTO. Voltage Measurement Maintenance This screen is used to calibrate the utility and generator voltage inputs (Figure 4-17). To access the first screen, press the left arrow button. To return to the system configuration menu screen press the return arrow. To calibrate the individual inputs, press the screen button displaying the value to the changed. The "++", + and "-- ", - screen buttons can be used to change the displayed value to match the measured value. The "++" and "--" buttons will change the setting at a faster rate than the "+" and "-" buttons. When all values have been updated, press the DONE button to update the settings Figure Input/Output Signal Maintenance Voltage Measurement Display This is the utility and generator voltage inputs screen. To access the Maintenance I/O screen, press the left arrow button (Figure 4-16). To return to the system configuration menu screen press the return arrow. To calibrate the individual inputs, press the CALIBRATE button. This will display the voltage measurement adjustment buttons. For single phase systems, C is the sum of A and B voltages. Figure Voltage Measurement Maintenance System Status The system status screen is used to convey what step of the sequence the transfer switch controller is currently in. This screen can be used for operation and troubleshooting. See Figure The indicators will change colors to indicate whether the function they represent is active or inactive; green or red for active, black for inactive. To return to the system configuration menu screen press the return arrow Figure Voltage Measurement Maintenance Figure System Status Integrated Load Center Owner s Manual 21

26 Operation System Utility Menu #1 The system utility menu screen is used to perform the indicated system functions (Figure 4-19). Press the button to perform the indicated functions. Clean Screen - Press this button to disable the touch screen for a period of time so that the screen can be wiped off without the concern of making an unintentional input (Figure 4-21). Contrast - Press this button to adjust the HMI display screen contrast, brightness, and LED gamma. (Figure 4-20). Calibrate - Press this button to adjust the HMI display screen contact position to ensure the accurate touch screen function (Figure 4-22). System Configuration - This function is not a customer accessible function. System Tests - This function is not a customer accessible function. To return to the system configuration menu screen, press the return arrow. Figure Screen Cleaner Figure Screen Calibration Screen Figure System Utility Menu System Utility Menu # Figure System Utility Menu (Contrast Adjust Popup) 22 Integrated Load Center Owner s Manual

27 Operation Generator Tests Under Load 1. Set the generator main circuit breaker to OFF (OPEN). 2. Set the utility service disconnect circuit breaker to OFF (OPEN). 3. Manually actuate the transfer switch main contacts to the standby position. 4. Select the manual mode of operation to start the generator. When engine starts, let it stabilize for a few minutes. 5. Set the generator main circuit breaker to ON (CLOSED). The generator now powers all load circuits. Verify generator operation under load as follows: Turn on electrical loads to the full rated wattage/ amperage capacity of the generator. DO NOT OVERLOAD. With maximum rated load applied, check voltage and frequency across transfer switch terminals E1 and E2. Voltage should be greater than 230 VAC (240 VAC system); frequency should be greater than 59 Hz. Verify that the gas pressure remains within acceptable parameters (see the generator installation manual). Let the generator run under rated load for at least 30 minutes. Listen for unusual noises, vibration, overheating, etc., that might indicate a problem. 6. Set main circuit breaker of the generator to the OFF (OPEN) when checkout under load is complete. 7. Let the generator run at no-load for several minutes. Then shut down by selecting OFF mode. 8. Set the main switch contacts back to the utility position. 9. Place the manual handle in its storage bracket. NOTE: Handle and operating lever of transfer switch should be in up position. Checking Automatic Operation Proceed as follows to check the system for proper automatic operation: 1. Verify generator is off. 2. Verify switch is de-energized. 3. Install front cover of the transfer switch. 4. Turn the utility power supply to the transfer switch ON, using the utility main line circuit breaker. 5. Set the generator main circuit breaker to ON. 6. Select AUTO on the generator panel. The system is ready for automatic operation. 7. Turn utility power supply to the transfer switch off. With the generator ready for automatic operation, the engine will crank and start when the utility source power is turned off after a 10 second delay (factory default setting). After starting, the transfer switch will connect load circuits to the standby side after the engine warm-up delay. Let the system operate through its entire automatic sequence of operation. With the generator running and loads powered by generator AC output, turn on the utility power supply to the transfer switch. The following will occur: The switch will transfer loads back to the utility power source after approximately 15 seconds. The engine will shut down approximately five minutes after transfer. With the generator in the AUTOMATIC mode, the system is now set for fully automatic operation. Installation Summary 1. Verify the installation has been properly performed as outlined by the manufacturer and that it meets all applicable laws and codes. 2. Verify proper operation of the system as outlined in the appropriate installation and owner s manuals. 3. Educate the end-user on the proper operation, maintenance and service call procedures. 10. Turn on the utility power supply to transfer switch, using whatever means provided (such as a utility main line circuit breaker). The utility power source now powers the loads. 11. The system is now set for fully automatic operation. Integrated Load Center Owner s Manual 23

28 Operation Shutting Generator Down While Under Load IMPORTANT NOTE: To turn the generator off during utility outages to perform maintenance, or conserve fuel, follow these important steps: To turn the generator off (while running in AUTO and Online): 1. Turn the main utility disconnect OFF. 2. Turn the main line circuit breaker (MLCB) on the generator to OFF (OPEN). 3. Allow the generator to run at least one minute to cool down. 4. Turn the generator OFF. NOTE: If turning the unit off longer than 24 hours, see generator manual for procedures to disconnect the battery negative cable ( ). This will prevent long term discharge of the battery. To turn the generator back ON: 1. Connect the battery negative cable per generator manual instructions, if previously disconnected. 2. Put the generator into AUTO and allow it to start and warm-up for a few minutes. 3. Set the MLCB on the generator to on. The system will now be operating in automatic mode. The main utility disconnect can be turned ON (CLOSED). NOTE: To shut the unit off, this complete process must be repeated. 24 Integrated Load Center Owner s Manual

29 Maintenance Section 5: Maintenance Operate Transfer Switch Operate the transfer switch at least once a month. This can be done by performing a normal test of the system. The system test switch only simulates failure of the utility power source, therefore, service will be interrupted only during the actual transfer of the load. Clean and Inspect Transfer Switch Protect the transfer switch against construction grit, metal chips, excessive moisture, and other harmful dirt at all times. At least once a year, turn off all power supplies to the switch, then brush and vacuum away dust and dirt that has accumulated inside the enclosure. After cleaning, inspect the transfer switch carefully. Look for evidence of arcing, burning, hot spots, charring, and other damage. If any of these are found, have the switch assembly checked by an authorized service technician. Main Current Carrying Contacts At least once annually, have an Independent Authorized Service Dealer (IASD) check the main current carrying contacts in the transfer mechanism. They will repair or replace major components that have been found defective. Twelve-Volt Batteries (Two) The batteries in this transfer switch are of the rechargeable lead acid type. Replace with Generac part #0D2568, Panasonic catalog no. LC-R12R3PU, or equivalent every three (3) years. After replacing batteries, be sure to tape thermistor back in place for proper battery charger operation. Lubrication Operating parts inside the transfer mechanism have been properly lubricated at the time of assembly. Under normal conditions, no additional lubrication should be required. The service technician should lubricate all recommended points whenever major transfer mechanism components are replaced. NOTE: Use only specified greases to lubricate contactor parts. DO NOT USE ANY SUBSTITUTES. A table of recommended lubricants is provided below. TABLE 1. Recommended Lubricants Contactor Part Description Recommended Lubricants Manufacturer Main Contacts Between movable contact and bus bars Rheolube 363 Nye Lubricants, Inc., USA Operating Mechanism Actuator and other parts of the contactors. Does not include movable contacts Mobilgrease 28 Mobiltemp SHC 32 Polo Moly Complex Grease #NLG12 Dow Corning (Molykote) BR2 Plus Mobil Oil Co., USA Mobil Oil Co., USA Polo Lubricants, USA Dow Corning Co., USA Integrated Load Center Owner s Manual 25

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31 Section 6: Modbus Map Modbus Map Description This document describes the transfer switch data available via the secondary communication port on the touch screen. RS232 Pinout Communication Settings Protocol RS-232 Baud rate 9600 Data bits 8 Parity None Stop bits 1 Modbus Settings Station 157 Data Map Register Data Notes 500 [0:15] Bitmap Bit 6: Automatic Mode 501 [0:15] Bit 0: Util ok Bit 1: Util loss delay Bit 2: Gen starting Bit 3: Gen ok Bit 4: Synching Bit 5: TDN Bit 6: On generator Bit 7: Util recover delay Bit 8: Gen minimum run Bit 9: Gen cooldown Bit 10: Gen stop Bit 11: Exercising Bit 12: System fault Bit 13: Transfer to gen Bit 14: Transfer to util Bit 15: Warmup Bitmap 502 [0:15] Bit 1: In test mode Bit 2: In fast test mode Bitmap 503 Measured Va AB line-to-line (AN for single phase) 504 Measured Vb BC line-to-line (BN for single phase) 505 Measured Vc CA line-to-line (unused for single phase) 506 Measured Ia 507 Measured Ib 508 Measured Ic Unused for single phase 509 Utility Volts Average 510 Utility Current Average 511 Utility Frequency Average, x Utility Power Factor x Utility kw Average 514 Generator Volts Average 515 Generator Frequency Average Integrated Load Center Owner s Manual 27

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33 Section 7: Drawings and Diagrams Drawings and Diagrams Assembly Drawing ( , 1 of 3) Integrated Load Center Owner s Manual 29

34 Drawings and Diagrams Assembly Drawing ( , 2 of 3) 30 Integrated Load Center Owner s Manual

35 Drawings and Diagrams Assembly Drawing ( , 3 of 3) Integrated Load Center Owner s Manual 31

36 Drawings and Diagrams Schematic Drawing (0L4633-C, 1 of 2) 32 Integrated Load Center Owner s Manual

37 Drawings and Diagrams Schematic Drawing (0L4633-C, 2 of 2) Integrated Load Center Owner s Manual 33

38 Drawings and Diagrams Wiring Diagram (0L4634-C, 1 of 2) 34 Integrated Load Center Owner s Manual

39 Drawings and Diagrams Wiring Diagram (0L4634-C, 2 of 2) Integrated Load Center Owner s Manual 35

40 Drawings and Diagrams Installation Drawing (0L4635-A, 1 of 2) 36 Integrated Load Center Owner s Manual

41 Drawings and Diagrams Installation Drawing (0L4635-A, 2 of 2) Integrated Load Center Owner s Manual 37

42 Drawings and Diagrams This page intentionally left blank. 38 Integrated Load Center Owner s Manual

43

44 Part No. 0L4636 Rev. E 09/18/ Generac Power Systems, Inc. All rights reserved Specifications are subject to change without notice. No reproduction allowed in any form without prior written consent from Generac Power Systems, Inc. Generac Power Systems, Inc. S45 W29290 Hwy. 59 Waukesha, WI GENERAC ( )