User Manual Universal Transfer Switch UTS6, UTS6BI and UTS10BI
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Contents Page About This Manual Intended Audience Revision Information Important Safety Information Safety Symbols Important Safety Tips Conventions and Typefaces Used Protect Your Investment References Frequently Used Acronyms iii iii iii iii iii iv iv v v vi Chapter 1 - Introduction Proven Expertise...
Contents Page Appendix A - Advanced Configuration Advanced Configuration and Setup System Configuration and Setup Bypass Mode Load Shedding Voltage Sensitivity Time Management Reset Energy Meter System Test GEN Source Type Generator Power Rating Generator Surge Overload Time Generator Start Mode Generator Start and Stop Relay Positions Generator Start and Stop Delay Times UPS (BACKUP2) Source Type UPS Power Rating UPS Surge Overload Time Reset to Factory Default Circuits Configuration and Setup Circuit Set
About This Manual Intended Audience This manual provides information for those persons responsible for set up, configuration and operation of the UTS6, UTS6BI and UTS10BI Universal Transfer Switches (UTSs). Information concerning troubleshooting common problems, and how to contact APC Technical Support and/or Customer Service is also provided. This manual is part of a documentation set that also includes the Universal Transfer Switch Site Preparation and Installation Guide (Document No.
Important Safety Tips The following are important safety tips that must be read and understood prior to installing or operating a UTS6, UTS6BI or UTS10BI Universal Transfer Switch. 1. Read this manual - Read all of the safety and operating instructions before installing and operating this device. 2. Keep this manual - Keep this manual, and all safety information that came with the device. 3. Warnings - Comply with all warnings presented in this manual, and on the device. 4.
Protect Your Investment Please take a few minutes to fill out and mail the enclosed Warranty Registration Card, or complete the online form at: www.apc.com to ensure you receive all the benefits and protection that accompany your purchase. Note: Under California law, failure to register your purchase may not exclude you from provisions of the Warranty and Equipment Protection Policy. The benefits of warranty registration are outlined in the following subparagraphs.
Frequently Used Acronyms A AC AFCI ALMTM APC AVR CSA DC EMI FCC GFCI GND HP Hz KwH LCD LED LPG MOV NEC NEMA NG RFI SOHO TVSS UL UPS UTS VA VAC or Vac ampere alternating current arc-fault circuit interrupter adaptive load management American Power Conversion automatic voltage regulation Canadian Standards Association direct current electromagnetic interference Federal Communications Commission ground-fault circuit interrupter ground horse power Hertz kilowatt hour liquid crystal display light-emitting diode
C h a p t e r 1 Introduction Congratulations on purchasing your APC Universal Transfer Switch (UTS). Three universal transfer switches are covered in this manual, the UTS6, UTS6BI and the UTS10BI. A transfer switch is the key to safe and convenient operation of portable generators for standby power.
Figure 1-1. UTS10BI Universal Transfer Switch APC’s Universal Transfer Switches APC’s UTS6, UTS6BI and UTS10BI Universal Transfer Switches (UTSs) are designed to supply power to circuits in a home office or small office from up to two independent backup sources such as a generator, uninterruptible power supply (UPS), solar inverters, or other alternative energy sources.
Safety Precautions Ensure that you read and understand all of the safety information contained in “About This Manual”, in the front of this manual. If you have any questions concerning any of the safety information, or if you are concerned that your home or office may not be properly wired for this equipment, contact a qualified and licensed electrician, and APC Technical Support.
Features Summary The Model UTS6, UTS6BI and UTS10BI Universal Transfer Switches include the following major features: • A fully automatic transfer switch that provides power for up to ten circuits from one or two independent backup sources • Quick, easy and safe configuration, installation and setup • Certified to UL 1008 Transfer Switch Equipment standard • UPS backup for true uninterrupted operation • Ability to transfer select loads between backup sources (generator and UPS) to provide maximum power avai
Figure 1-2. UTS Power Connectors Generator Inlet This is the male L14-20 or L14-30 connector for the power input cable that connects from the generator, and is supplied by the customer. Additional generator power input cable information is provided in Appendix A of the Site Preparation and Installation Guide (990-2992A). UPS Inlet This is the female IEC 320 connector for the power input cable from the uninterruptible power supply (UPS).
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C h a p t e r 2 Familiarization Major Features The APC Universal Transfer Switches (UTSs) include a variety of features and options that provide maximum flexibility, and enhance operating reliability and efficiency.
Ability to Transfer Select Loads Between Backup Sources When the UTS is connected to both a generator and UPS, it can automatically transfer select loads between the backup sources.This helps minimize power interruptions to the loads due to Generator or UPS overloading. Voltage Sensitivity This feature allows you to determine how the UTS reacts to momentary power fluctuations. Sensitivity can be set to LOW, MEDIUM, or HIGH. The factory default is MEDIUM, which is suitable for most situations.
C h a p t e r 3 Controls and Indicators This chapter describes and illustrates the controls and indicators that are used to setup, configure and operate the UTS6, UTS6BI and UTS10BI Universal Transfer Switches (UTSs). The controls are six push buttons, which are used with LED indicators, and text messages displayed on a liquid crystal display (LCD), as shown in Figure 3-1. The LCD displays two lines of text, 20 characters per line.
LCD, Push Buttons and LED Indicators The alphanumeric liquid crystal display (LCD), push buttons, and LED indicators are located on the top half of the front panel. They are shown in Figure 3-1, and described in the table below. 7 2 3 8 4 1 5 6 Figure 3-1.
8 Circuit Indicators (Red) Depending on the UTS model there can be up to ten red LED indicators located on the front panel under Circuit that show the status of the circuits being backed up by the UTS. When one of the LEDs is ON (lit) it indicates that circuit is receiving power from one of the power sources. When a LED is OFF (not lit) it indicates that circuit is not receiving power. When a LED is flashing OFF and ON it indicates that a fault or abnormal condition exists that should be corrected.
This message contains the MODEL# (model number) and SN# (serial number) of your UTS. MODEL#: UTS10BI SN#: JB06008004272 This message provides the firmware version (FW VER) that is used in your UTS. UTS FW VER: 1 UI FW VER: 1 This message shows the date your UTS was manufactured (MFG DATE). MFG DATE:07/23/2006 Circuit Status Pressing the Circuit Status button allows you to display additional details about each of the circuits.
SECURITY This indicates the circuit is in security mode. This is primarily used for indoor and outdoor lighting circuits. This mode of operation is used when you are away from home, such as on vacation. In this mode the circuit is supplied power for two hours, goes off for two hours, is again supplied power for two hours, and so on. Status AMPs This is the current in Amperes for a circuit. KWH This is the energy consumed by the load(s) on a circuit since the energy meter was last reset.
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A p p e n d i x A d v a n c e d A C o n f i g u r a t i o n Advanced Configuration and Setup Advanced configuration and setup consists of two major tasks, system configuration and setup, and circuits configuration and setup. System Configuration and Setup Press the SYSTEM SETUP button to enter system setup mode. The LCD setup messages will appear in the order they are described in this section. The Up Arrow and Down Arrow buttons are used to move between messages, and to change values.
Load Shedding Load shedding can be turned ON or OFF, as shown in this example, to shed (drop) a load or loads. The factory default setting is ON. LOAD SHEDDING: ON/OFF The UTS includes an algorithm (software) for intelligent load management, defined by APC as adaptive load management (ALM), that maximizes the capabilities of backup sources. The algorithm sheds (drops) loads when the generator is in danger of being overloaded, and reconnects them when adequate power is available.
Note MAXIMUM OFF and MINIMUM ON times are set separately for each circuit. ! Press the System Setup button to display the next message. Reset Energy Meter This feature allows you to determine the total electric energy that is being consumed by your loads in kilowatt hours (kWh). When it is reset, the kWh counter for each circuit resets to 0, and counts from that point forward. Press the System Setup button to display the next message.
Note ! A value can be entered faster by pressing the Up Arrow or Down Arrow key, and holding it down until the desired value is displayed. Holding the button down causes the numbers to advance much faster. The display moves by 5 Watt increments, then 10 Watt increments, and then by 100 Watt increments. When you release the button it causes the incrementing speed to be reset, and it reverts back to 5 Watt increments. Press the System Setup button to advance to the next displayed message.
Note ! Warning ! The automatic start/stop generator must have an automatic choke, and must be capable of being started and stopped automatically from a remote location. Refer to your generator user’s manual; if you are still unsure, contact the generator manufacturer. Also, to take full advantage of the automatic start/stop capability, we strongly recommend that you use a UPS as the BACKUP2 source.
Generator Start and Stop Delay Times The GEN START DLY TIME specifies the delay between when primary utility power fails, and when the Backup1 automatic generator starts. The GEN STOP DLY TIME sets the time that elapses between when primary utility power is restored, and when the Backup1 automatic generator automatically stops. The default is 5 MIN, the minimum delay is 30 SEC and the maximum delay is 60 MIN.
UPS Surge Overload Time This value is used to determine the response speed of the ALM algorithm. When the power output from the UPS source surge exceeds the power rating (set earlier in this section) for the specified UPS SRGE OVERLD TIME (a value in the [0-60] SEC range), then load shedding will be activated. Load shedding occurs when the rated output power of the UPS is exceeded for longer than the SRGE OVERLD TIME.
Circuit Load Types Examples of the types of loads that may be connected to a circuit, and the labels that are typically found beside the circuit breakers on a circuit breaker panel are summarized below.
For example, if you have a home office and you want to backup all of the outlets in the office using a UPS, you would make the circuit to your office uninterruptible, and the load and all the outlets connected to that BACKUP2 circuit would be protected by the UPS. Delayable Circuits This setting determines whether a circuit can be delayed or not.
Circuit Security Mode When security mode is enabled, the UTS automatically cycles power to the circuit (two hours on, and two hours off). This mode is for when you expect to be away overnight, or for an extended period of time, such as when you go on vacation. CKT1 SECURITY MODE: OFF/ON Circuit Amp Rating Use this feature to configure a circuit to have the same ampere rating (15 A or 20 A) as its corresponding circuit breaker located in the load center.
A p p e n d i x B T r o u b l e s h o o t i n g This appendix describes causes and recommended solutions for possible UTS problems. Note ! Note The LCD screen will display any faults or warning conditions that occur along with informational messages. If you are ever in doubt as to what action to take, please contact APC Technical Support: Internet — www.apc.
While operating on backup power, generator’s breaker keeps tripping Possible Cause: The ALM is disabled. Solution: Enable the ALM. Possible Cause: Ensure the generator and/or UPS is rated appropriately (reference System Configuration in Appendix B of the Universal Transfer Switch Site Preparation and Installation Guide). Solution: If the generator is not rated correctly, the ALM will not be able to prevent generator overloads. Lower the power ratings as needed, and reduce the Overload Delay Time.
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APC Worldwide Customer Support Customer support for this or any other APC product is available at no charge in any of the following ways: • Visit the APC Web site to access documents in the APC Knowledge Base and to submit customer support requests. – www.apc.com (Corporate Headquarters) Connect to localized APC Web sites for specific countries, each of which provides customer support information. – www.apc.com/support/ Global support searching APC Knowledge Base and using e-support.
