PROwatt 1500/12 volt
Contents
1. CAUTION When connecting the PROwatt 1500 to existing AC wiring be sure to observe the following precautions 1 Maintain correct wiring polarity A modern 115 volt AC wiring system has three conductors hot neutral or common and ground Wire insulation is color coded black for hot and white for neutral The ground conductor may be a bare wire or it may be a green insulated wire Screws on terminals are typically color coded brass for hot silver for neutral and green for ground Figure 9A AC Output Terminal Block The AC output of the PROwatt 1500 has hot neutral and ground conductors Figure 9A shows the internal termi nals for the hot neutral and ground conductors When connecting to the AC wiring connect the hot black wire to the hot terminal and the neutral white to the neutral terminal Connect the ground wire to the internal ground lug in the PROwatt Connect the other end of the ground wire to a grounding point on a junction box or breaker panel Improper connections such as connecting a hot conductor to a neutral conductor will cause the PROwatt 1500 to malfunction and may cause permanent damage to the inverter 2 Do not connect the PROwatt 1500 and another AC source such as a generator or utility power to the AC wiring at the same time The PROwatt 1500 will be damaged if its output is connected to AC voltage from another source Damage can occur even if the PROwatt is switched off 13 When installing2. 12 3 12 4 60 12 1 12 2 40 11 9 12 0 20 Alternators and Charging Systems A good charging system is important for the health of your batteries Poor recharging methods can quickly dam age your batteries When possible recharge your batteries when they are about 50 discharged This will give you much longer battery cycle life than recharging when the batteries are almost completely discharged The Stat power TRUEcharge family of battery chargers are designed to maximize your batteries performance and useful life see your Statpower dealer for more details The charging system should be capable of delivering a charging current equal to 25 of the ampere hour capacity of your battery For instance if you have a 200 ampere hour battery the charging system should be able to de liver 50 amperes The charging system must also be able to charge each 12 volt battery up to approximately 14 4 volts and then drop back to a float voltage of 13 5 to 14 volts or shut off A typical engine alternator 12 Volt may not be able to meet these requirements if large capacity batteries are used Alternators are typically rated for the current they can deliver when they are cold In actual use alternators heat up and their output current capability drops by as much as 25 Thus standard alternators with ratings of 40 amperes to 105 amperes will only deliver a maximum of 30 to 80 amperes in actual use and will deliver even less as battery voltage
3. 2000 watts 1500 watts 115 V AC RMS 5 Modified sine wave phase corrected 60 Hz 0 01 20 to 30 VDC audible 21 5 volts 20 volts approx 85 90 lt 0 4 A 3 8cm 9 24cm 16 41cm 8 25 lb 3 8 kg Cut along dot y ted line Filename 445 0006 Rev 5
4. C and 40 C 30 F and 105 F the cooler the bet ter c Ventilated allow at least 1 inch 2 5cm of clearance around the PROwatt 1500 for air flow Ensure that ventilation openings on the rear and bottom of the unit are not obstructed d Safe do not install the PROwatt in the same compartment as batteries or in any compartment capable of storing flammable liquids such as gasoline e Close to Battery install as close to the battery as possible in order to minimize the length of cable re quired to connect the inverter to the battery It is better and cheaper to run longer AC wires than longer DC cables CAUTION To prevent fire do not cover or obstruct ventilation openings Do not install the PROwatt 1500 in a zero clearance compartment Overheating may result WARNING This equipment contains components which tend to produce arcs or sparks To prevent fire or explosion do not install in compartments containing batteries or flammable materials or in locations which require ignition protected equipment Mount the PROwatt on a flat surface using the mounting bracket on the bottom Mounting hardware should be corrosion resistant and 10 or larger The PROwatt may be mounted horizontally or vertically 4 2 Battery The battery you use strongly affects the performance you can expect from your PROwatt 1500 It is important to connect the PROwatt 1500 to the correct size and type of battery The following information will help you se
5. FuLL sze mcrowave OPERATING TIME nr nr nr osHours 2HouRS N R NOT RECOMMENDED 27 100 N R R N R 1 5 HOURS 4 HOURS Figure 6 12 Volt Battery Sizing Chart Average Power Consumption 1577 5 watt hrs 5 4 hours 292 watts 12 volt Ampere Hours Consumed Watt hours 10 1577 5 10 157 8 ampere hours or for PW 1500 24 volt system Consumption 1577 5 watt hours 292 watts 24 volt Ampere Hours Consumed Watt hours 20 1577 5 20 79 ampere hours Step 4 Using the chart above figure 6 find the battery size that will give you the required operating time at the calculated average power consumption For instance from the example above the required operating time is 5 4 hours and the average power consumption is 292 watts From the chart the smallest battery size which will give more than 5 hours of operation at a power level between 200 and 300 watts is the 200 amp hr battery which offers between 6 and 10 hours of operating time When sizing your battery be generous More capacity is better since you will have more reserve capacity and your battery won t be discharged as deeply Battery life is directly dependent on how deeply the battery is dis charged The deeper the discharge the shorter the battery life Ideally the number of ampere hours consumed by your loads before recharging the battery should be no more than 50 of the battery s rated capacity Using Multiple Batteries To obtain s
6. PROwatt 1500 incorporates protection against overvoltage it may still be damaged if the input voltage exceeds 16 volts 32V for PW1500 24 6 Troubleshooting 6 1 Common Problems Buzz in Audio Systems Some inexpensive stereo systems and boom boxes will emit a buzzing noise from their loudspeakers when op erated from the PROwatt 1500 This is because the power supply in the device does not adequately filter the modified sine wave produced by the PROwatt 1500 The only solution is to use a sound system that incorporates a higher quality power supply Television Interference Operation of the PROwatt 1500 can interfere with television reception on some channels If this situation occurs the following steps may help to alleviate the problem 1 Make sure that the chassis ground lug on the back of the PROwatt 1500 is solidly connected to the ground sys tem of your vehicle boat or home 2 Do not operate high power loads with the PROwatt 1500 while watching television 3 Make sure that the antenna feeding your television provides an adequate snow free signal and that you are using good quality cable between the antenna and the television 4 Move the television as far away from the PROwatt 1500 as possible 5 Keep the cables between the battery and the PROwatt 1500 as short as possible and twist them together with about 2 to 3 twists per foot This minimizes radiated interference from the cables 20 6 2 Troubleshootin
7. 25 cm back from the end exposing the bare copper conductor The other end of the cable which is connected to the bat tery must be terminated with a battery terminal that clamps to the post on the battery A solid low resistance connection to the battery is essential for proper operation of the PROwatt 1500 4 4 Connections AC Wiring WARNING If making a permanent AC connection to the PROwatt 1500 ensure that the following AC wiring steps are performed before any DC wiring is done DC hook up energizes internal components regardless of the position of the ON OFF switch Working on AC connections in such a circumstance may result in electrical shock WARNING Permanent AC connections to the terminal blocks shown in figures 9 amp 9A are not GFCI pro tected WARNING 115 Volt AC power is potentially lethal Do not work on AC wiring while the wiring is connected to the PROwatt 1500 even if it is switched off unless the DC power source is physically disconnected from the inverter Also do not work on AC wiring if it is connected to another AC power source such as a generator or the utility line CAUTION Electrical installations must meet local and national wiring codes and should be done by a qualified electrician Do not attempt your own AC wiring unless you have the knowledge and experience to do a safe job Your RV or boat dealer or a licensed electrician can do the job for you if you do not wish to do your own wiring 12 I
8. PRO watt must be connected to a battery or a well regulated high current DC power supply to work properly 4 3 Cables Proper wire and wiring is very important to the proper operation of the PROwatt 1500 Because the PROwatt 1500 has a low voltage high current input low resistance wiring between the battery and the PROwatt 1500 is essential to deliver the maximum amount of usable energy to your load Don t waste the investment you have made in batteries and a highly efficient inverter by using undersized wires Use only copper wire Aluminum wire has about 1 3 more resistance than copper wire of the same size and it is more difficult to make good low resistance connections to aluminum wire We recommend 2 AWG copper cable 90 C insulation rating as the minimum size for connections between the battery and the PROwatt 1500 4 AWG for PW1500 24 Keep the cable length as short as possible no longer than 4 ft 1 2 meters This will keep the voltage drop between the battery and the PROwatt to a minimum If the cables introduce an excessive voltage drop the inverter may shut down when drawing higher currents because the voltage at the inverter drops below 10 volts 20 volts for PW1500 24 If you must use longer cables then choose larger cable such as 00 AWG 2 AWG for PW1500 24 and trim the ends of the cable to fit the terminals The end of the cable to be connected to the inverter must have its insulation stripped for about 1 2 inch 1
9. Statpower shall not be liable for damages whether direct inci dental special or consequential even though caused by negligence or fault This is Statpower s only warranty and The Company makes no warranties express or implied including warran ties of merchantability and fitness for a particular purpose 8 2 To Obtain Warranty Service If your PROwatt 1500 requires service please return it to the place of purchase If you are unable to contact your merchant or the merchant is unable to provide service contact Statpower directly BY PHONE 604 420 1585 BY FAX 604 420 1591 BY MAIL Statpower Technologies Corp 7725 Lougheed Hwy Burnaby BC V5A 4V8 CANADA You must obtain a Return Authorization Number from Statpower before returning a PROwatt 1500 directly to Statpower Do not return a PROwatt 1500 to Statpower without first obtaining a Return Authorization Number When you contact Statpower to obtain service be prepared to supply the serial number of your PRO watt 1500 The serial number is located on the back panel or on the bottom of the unit a description of the problem serial number of the unit the serial number is located on the back panel or on the bottom of the unit name and address of the dealer where you purchased the unit and date of purchase If you are returning a PROwatt 1500 to Statpower from the USA follow this procedure 1 Obtain a Return Authorization Number from Statpower 22 2 Pa
10. if RESET button does not pop out at all when test button is depressed the inverter should be returned to your place of purchase for service 2 If the GFCI tests okay restore power by pushing the RESET button back in firmly and fully into place until it locks and remains depressed after pressure has been removed If the GFCI fails to reset properly do not use it the inverter should be returned to your place of purchase for service Test lamp should light again 3 If the GFCI trips by itself at any time reset it and perform test procedures 1 and 2 WARNING There are no user serviceable parts inside of the PROwatt 1500 and the GFCI tripping does NOT mean that there is no risk of personal injury if one attempts to service the inverter or perform AC wiring Refer all servicing to qualified personnel ON OFF Switch The ON OFF switch turns the control circuit in the PROwatt 1500 on and off It does not dis connect power from the PROwatt When the switch is in the OFF position the PROwatt 1500 draws no current from the battery When the switch is in the ON position but no power is being supplied to the load the PROwatt 1500 12 and 24 volt draws less than 500 milliamperes from the battery This is a low current draw It would take more than a week to discharge a 100 ampere hour battery at this current so you don t have to worry about excessive drain on your battery if you leave the PROwatt 1500 switched on for a few days Do switch the PROwatt
11. off if you are not planning to re charge your battery within a week or so Remote Panel The PROwatt also has a jack located on the bottom of the unit which interfaces with the optional remote panel The remote panel allows you to mount your PROwatt out of sight and turn your PROwatt ON OFF from a conveniently located panel The remote panel has a button and indicator light showing the inverter is ON or OFF see section 4 5 for installation and operating instructions 18 Battery Voltage Indicator The battery voltage bar graph indicates the voltage at the input terminals of the PROwatt 1500 At low input currents this voltage is very close to the battery voltage At high input currents this voltage will be lower than the battery voltage because of the voltage drop across the cable and connections Ideally the voltage should remain in the green area of the bar graph If the voltage goes into the red areas at the top and bottom of the graph the PROwatt may shut down Battery Current Indicator The battery current bar graph indicates the current drawn from the battery by the PROwatt 1500 It will not indicate current drawn by other loads also connected to the battery For long term operation the current should remain in the green area of the bar graph Short term operation is pos sible with current in the yellow area If the current rises to the red area the PROwatt will reduce its output volt age to protect itself OVERTEMP Indicator The O
12. rises Many alternators cannot produce more than 13 6 volts when they are hot As a result a standard alternator may not be able to charge a large battery quickly and completely One solution is to install an alternator controller that will bypass the voltage regulator and boost the alternator s output voltage during charging This will increase the alternator s charging rate at higher battery voltages and ensure more rapid and complete charging Alternator controllers are available from marine product dealers Another solution is to install a high output alternator Heavy duty alternators rated from 100 amperes to 140 am peres are available from RV and marine dealers and auto parts suppliers These alternators are designed to di rectly replace standard alternators but produce the higher current and higher voltage required to charge multiple battery systems When recharging from AC power use a good quality marine battery charger or RV converter that meets the re quirements specified above Do not use chargers intended for occasional recharging of automotive starting batter ies these chargers are not intended for continuous use 11 Your batteries may also be recharged from alternative energy sources such as solar panels wind or hydro sys tems Make sure that you use the appropriate battery charge controller for your energy source Do not operate the PROwatt 1500 directly from a charging source such as an alternator or solar panel The
13. 1500 Generator or Shore Power Auto Transfer Switch Figure 11 AC Wiring with Transfer Switch 14 PROwatt 1500 Shore Power or Generator AC Transfer Switch AC Breaker Panel 0008 KAR 0008 0006 oo0o00000 Figure 12 Wiring to AC Breaker Panel Ground Wiring The PROwatt 1500 has a lug on the rear panel labeled Chassis Ground This is to connect the chassis of the PROwatt 1500 to ground The ground terminal in the AC outlet on the front panel of the PROwatt 1500 is con nected to the chassis The chassis ground lug must be connected to a grounding point which will vary depending on where the PRO watt 1500 is installed In a vehicle connect the chassis ground to the chassis of the vehicle In a boat connect to the boat s grounding system In a fixed location connect the chassis ground lug to earth ground by connecting to a ground rod a metal rod pounded into the earth or other proper service entrance ground Use a 8 AWG or lar ger copper wire preferably with green yellow insulation to connect the chassis ground lug to the grounding point Is some installations a larger wire size may be required Refer to the local national codes applicable for your type of installation The neutral common conductor of the PROwatt 1500 AC output circuit is connected to chassis ground There fore when the chassis is connected to ground the neutral conductor will also be grounded This conforms to Na tional Ele
14. PROwatt 1500 12 volt PROwatt 1500 24 volt POWER INVERTER Owners Manual Statpower Technologies Corporation Tel 604 420 1585 7725 Lougheed Highway Fax 604 420 1591 Burnaby BC VSA 4V8 Internet address http www statpower com Canada PROwatt is a trademark of Statpower Technologies Corporation Copyright 1996 1997 Statpower Technologies Corporation All rights reserved Table of Contents Mi TAN 1 2 How Yo r PRO watt 1500 WOrKS wisssicccsecccscacscolecssseccssenssstecstesnssienecssnssssenessensessesececsssiesesesesecsonssconsesseuecesesecesessdeue 1 2 1 Principle OF Operation nsis seinio et a tete a e o a e i a o Ra 1 2 2 PROwatt 1500 Output Waveform coooccnnccnocononnnoonnnoncnnnononononono i E E E a i E e Rie 3 3 QUICK CHECK AAA 4 Sed POWER TOLE AEE AEE E E PRE SERIES 4 32 Cables ias od 4 A A ON 5 JA CONNECUODS LA AAA A A NE ha A a DR de A 5 A O 6 4 1 Where to Mnstallinaa cio it tii 6 4 2 Battery O 6 BUEYES soeagbidouss vanes E a EES 7 Battery S121 8 RN 8 Using M ltiple Batteries init a dl 9 Battery aia 10 Alternators and Charging Systems isisi erie raeas KEEA EE POEET Ear KEEA cnn AEE E 11 A AO 12 AA CONME HON Sere ieie enen tel ed eerie sorei 12 AC WHN S e e ethos Beat n a es 12 Ground Wii id os 15 DAN AN 16 4D Remote PM A A A a td 17 Installation LAA tdo 17 Operating Instructions std 17 S OCPCLatiOMsss sssisssccesesscceesdessnssssssecsascesvesesdesecesdeessuscsss
15. PROwatt 1500 3 4 Connections Follow the connection sequence described below STEP 1Ensure that the ON OFF switch on the PROwatt 1500 is in the OFF position If the power source is a DC power supply switch it off as well STEP 2Connect the cables to the power input terminals on the rear panel of the PROwatt 1500 The red terminal is positive and the white terminal is negative Insert the bare ends of the cables into the terminals and tighten the screws to clamp the wires securely STEP 3Connect the cable from the negative white terminal of the PROwatt 1500 to the negative terminal of the power source Make a secure connection CAUTION Loosely tightened connectors result in excessive voltage drop and may cause overheated wires and melted insulation STEP 4Before proceeding further carefully check that the cable you have just connected connects the negative terminal of the PROwatt 1500 to the negative output terminal of the power source Power connections to the PROwatt 1500 must be positive to positive and negative to negative CAUTION Reverse polarity connection positive to negative will blow the fuses in the PROwatt 1500 and may permanently damage the PROwatt 1500 Damage caused by reverse polarity connection is not cov ered by your warranty STEP 5Connect the cable from the positive red terminal of the PROwatt 1500 to the positive terminal of the power source Make a secure connection WARNING You may observe a spark
16. VERTEMP indicator light and alarm sound indicates that the PROwatt 1500 has shut itself down because it has become overheated The PROwatt may overheat because it has been operated at power levels above its 1500 watt continuous output rating or because it has been installed in a location which does not allow it to dissipate heat properly The PROwatt 1500 will restart automatically once it has cooled off OVERLOAD Indicator The OVERLOAD indicator indicates that the PROwatt 1500 has shut itself down be cause of sever overload Switch the ON OFF switch to OFF correct the fault condition and then switch the ON OFF switch back to ON Do not turn the PROwatt 1500 back on unless the fault condition is corrected load removed unplugged 5 2 Operating Limits Power Output The PROwatt 1500 will deliver 1500 watts or 13 amperes continuously It will deliver greater than 2000 watts or 17 amperes for about 10 to 15 minutes The PROwatt must cool for 15 minutes before it can resume operation at 2000 watts The wattage rating applies to resistive loads such as incandescent lights while the current rating ap plies to reactive loads such as motors The PROwatt 1500 will operate most AC loads within its power rating Some induction motors used in freezers pumps and other motor operated equipment require very high surge currents to start The PROwatt 1500 may not be able to start some of these motors even though their rated current draw is within the PROwatt s
17. ced line of dc to ac inverters available today It will give you years of dependable service in your boat RV service vehicle or remote home To get the most out of your PROwatt 1500 it must be installed and used properly Please read the installation and operating instructions in this manual carefully before installing and using your PROwatt 1500 Pay special atten tion to the CAUTION and WARNING statements in this manual and on the PROwatt 1500 CAUTION state ments identify conditions or practices which could result in damage to your PROwatt 1500 or to other equipment WARNING statements identify conditions or practices that could result in personal injury or loss of life 2 How Your PROwatt 1500 Works An inverter is an electronic device that converts low voltage DC direct current electricity from a battery or other power source to standard 115 volt AC alternating current household power In designing the PROwatt 1500 Statpower has used power conversion technology previously employed in computer power supplies to give you an inverter that is smaller lighter and easier to use than inverters based on older technology 2 1 Principle of Operation The PROwatt 1500 converts power in two stages The first stage is a DC to DC converter which raises the low voltage DC at the inverter input to 145 volts DC The second stage is the actual inverter stage It converts the high voltage DC into 115 volts 60 Hz AC The DC to DC converter stage uses m
18. charging the vehicle s starting battery During vehicle operation the battery isolator automatically directs the charge from the alternator to the battery requiring the charge Battery isolators can be obtained at marine and RV dealers and most auto parts stores If your application involves relatively low power loads i e power consumption of 300 watts or less and rela tively short operating times before recharging one hour or less you may connect the PROwatt 1500 directly to the vehicle starting battery CAUTION The PROwatt 1500 12 must be connected only to batteries Deep Cycle with a nominal output voltage of 12 Auxiliary Battery volts The PROwatt 1500 12 will not operate from a 6 volt battery and will PROwatt 1500 be damaged if it is connected to a 24 volt battery The PW1500 24 must be connected only to a 24 volt battery system The PW1500 24 will not oper ate from a 6 or 12 volt battery From Alternator or Charger To Vehicle Chassis Ground QO Vehicle Starting Battery Figure 5 Recommended Battery Configuration for Medium Duty Applications Battery Sizing Unfortunately there are a number of different standards for rating battery energy storage capacity 12 volt Auto motive starting batteries are normally rated by cranking amps This is not a relevant rating for continuous use Deep cycle batteries are rated either by reserve capacity in minutes
19. ckage the unit safely preferably using the original box and packing materials Include the Return Authori zation Number a return address where the repaired unit can be shipped a contact telephone number and a brief description of the problem 3 Ship the unit to the following address freight prepaid Statpower Technologies C O International Parcel Service Warehouse 8 14th Street Blaine WA 98230 If you are returning a PROwatt 1500 from Canada follow the procedure above but ship the unit freight prepaid to the following address Statpower Technologies 7725 Lougheed Highway Burnaby B C V5A 4V8 23 9 Specifications 9 1 Electrical Performance Output Power 30 minutes 10 minutes Continuous Output voltage Output waveform Output frequency Input voltage Low battery alarm Low battery cutout Efficiency No load current draw 9 2 Dimensions Height Width Length Weight PW1500 12 1800 watts 2000 watts 1500 watts 115 VAC RMS 5 Modified sine wave phase corrected 60 Hz 0 01 10 to 15 VDC audible 10 7 volts 10 volts approx 85 90 lt 0 5 A 3 8cm 9 24cm 16 41cm 8 25 lb 3 8 kg i 1 I I 1 I 1 I i Cut out this area of i the template then f i use it to mark the 1 1 drill hole locations 1 and the area on the l 1 wall to be cut out i i 1 1 I Figure 14 Remote Mounting Template Drawing No 440 0160 Rev 5 24 PW1500 24 1800 watts
20. ctrical Code requirements that separately derived AC sources such as inverters and generators have their neutral conductors tied to ground in the same way that the neutral conductor from the utility line is tied to ground at the AC breaker panel WARNING Do not operate the PROwatt 1500 without connecting it to ground Electrical shock hazard may result 15 DC Wiring STEP 1Ensure that the ON OFF switch on the saten terminals Connect to 12V battery or ici 14 ther 12 VD ble to deli PROwatt 1500 is in the OFF position If 200 amps or 24V 100A for PW1500 24 Use gt s 2 AWG 4 AWG for PW1500 24 insulated you are using a battery selector switch Copper cable or coccion Feed terminal is ositive white terminal is negative switch it off as well CAUTION Reverse polarity connection will blow internal fuse and may damage inverter permanently STEP 2Connect the cables to the power input terminals on the rear panel of the PRO watt 1500 The red terminal is positive and the white terminal is negative Insert the bare ends of the cables into the terminals and tighten the screws to clamp the wires securely STEP 3Connect the cable from the negative Chassis ground lug Connect to white terminal of the PROwatt 1500 to earth ground or to vehicle chassis N using 8 AWG wire the negative terminal of the battery WARNING Operation of the inverter without a proper ground connection may Ma
21. e when working around batteries The capacity of lead acid batteries is temperature sensitive Battery capacity is rated at 25 C 77 E At 20 C 0 F the ampere hour capacity will be about half the rated capacity Do not leave batteries in a discharged state for more than a day or two They will undergo a chemical process called sulfation which can permanently damage the battery Also batteries will self discharge over a period of 3 to 6 months so they should be periodically recharged even if they are not being used 10 4 If your batteries are not the maintenance free type check the electrolyte fluid level at least once a month Use only distilled water to replenish the electrolyte fluid Excessive fluid loss is a sign of overcharging 5 Connections to battery posts must be made with permanent connectors that provide a reliable low resistance connection Do not use alligator clips Clean the connections regularly and prevent corrosion by using a protective spray coating or vaseline 6 Battery state of charge can be measured with a hydrometer or more easily with a voltmeter Use a digital voltmeter that can display tenths or hundredths of a volt when measuring 10 to 30 volts Make your measure ments after the 12 volt battery has not been charged or discharged for several hours For a deep cycle battery at 25 C 77 F the following table may be used Battery Voltage State of Charge 12 7 12 9 100 12 5 12 6 80
22. e servicing Remote control connector on bottom OVERLOAD INDICATOR LAMP lights when inverter shuts down because of severe overload Turn inverter off remove cause of overload and turn inverter on to reset Battery terminals Connect to 12V battery or other 12 VDC power source able to deliver up to 200 amps 100A for PW1500 24 Use 2 AWG 4 AWG for PW1500 24 insulated copper cable for connections Red terminal is positive white terminal is negative CAUTION Reverse polarity connection will blow internal fuse and may damage inverter permanently Ventilation openings Do not obstruct Allow at least 1 inch clearance for air flow WARNING REVERSE POLARITY WILL DAMAGE UNIT intervals CAUTION Read section 4 4 of this manual carefully if you plan to connect this outlet to a breaker panel or to a circuit that is also connected to another source of AC power eg generator Chassis ground lug Connect to earth ground or to vehicle chassis using 8 AWG wire WARNING Operation of the inverter without a proper ground connection may result in an electrical safety hazard Knockout for access to AC output terminal blocks See section 4 4 of this manual 2 2 PROwatt 1500 Output Waveform The AC output waveform of the PROwatt 1500 is called a quasi sine wave or a modified sine wave It is a stepped waveform that is designed
23. g Guide Problem and Symptoms Low output voltage 96 VAC to 104 VAC Low output voltage and current indicator in red zone No output voltage and voltage indicator in lower red zone No output voltage no voltage indication No output voltage voltage indicator in upper red zone Low battery alarm on all the time voltage indicator below 11 V 22V for PW1500 24 No output voltage OVERTEMP indicator on load in excess of 1500 watts 150 ampere input CURRENT or 75A for PW1500 24 No output voltage OVERTEMP indicator on load less than 1500 watts 150 ampere input current or 75A for PW1500 24 No output voltage OVERLOAD indicator on Possible Cause Solution Using average reading Use true RMS reading meter voltmeter See section 2 2 of manual Overload Reduce load Low input voltage Recharge battery check connections and cable Inverter switched off Turn inverter on No power to inverter Check wiring to inverter Internal fuse open Have qualified service technician check and replace Reverse DC polarity Have qualified service technician check and replace fuse OBSERVE CORRECT POLARITY High input voltage Make sure that PROwatt is connected to 12V battery 24V for PW1500 24 check regulation of charging system Poor DC wiring poor Use proper cable and make battery condition solid connections Use new battery Thermal shutdown Allow PROwatt to cool off Reduce load if continuous operat
24. ion required Thermal shutdown Improve ventilation make sure ventilation openings in PROwatt aren t obstructed reduce ambient temperature Short circuit or wiring Check AC wiring for short error circuit or improper polarity hot and neutral reversed Very high power load Remove load 21 7 Maintenance Very little maintenance is required to keep your PROwatt 1500 operating properly You should clean the exterior of the unit periodically with a damp cloth to prevent accumulation of dust and dirt At the same time tighten the screws on the DC input terminals 8 Warranty 8 1 Warranty Terms Statpower warrants the PROwatt 1500 to be free from defects in workmanship or materials for 12 months from the date of purchase During this period Statpower will at its option repair or replace the defective product free of charge This warranty will be considered void if the unit has suffered any physical damage or alteration ei ther internally or externally and does not cover damage arising from improper use attempting to operate prod ucts with excessive power consumption requirements or from use in an unsuitable environment This warranty will not apply where the product has been misused neglected improperly installed or repaired by anyone other than Statpower In order to qualify for the warranty the product must not be disassembled or modified without prior authorization by Statpower Repair or replacement are your sole remedies and
25. ke a secure connection result in an electrical safety hazard CAUTION Loosely tightened connectors re Figure 13 Rear Panel Connections to PROwatt 1500 sult in excessive voltage drop and may cause overheated wires and melted insulation STEP 4Before proceeding further carefully check that the cable you have just connected connects the negative terminal of the PROwatt 1500 to the negative terminal of the battery Power connections to the PRO watt 1500 must be positive to positive and negative to negative CAUTION Reverse polarity connection positive to negative will blow a fuse in the PROwatt 1500 and may permanently damage the PROwatt 1500 Damage caused by reverse polarity connection is not cov ered by your warranty CAUTION We recommend a Main Fuse in the battery positive cable to protect against de wiring short circuits external to the inverter The fuse should be as close to the battery as possible We recommend a Buss Fuse ANL 250 or equivalent The specific fuse ampere rating should be sized to allow operation of all your de powered equipment STEP 5Connect the cable from the positive red terminal of the PROwatt 1500 to the positive terminal of the battery Main Fuse or to the battery selector switch if you are using one Make a secure connection You may observe a spark when you make this connection since current may flow to charge capacitors in the PROwatt 1500 WARNING Do not make this connection in the presence of flam
26. lect the appropriate batteries for your application Battery Type The lead acid battery which is probably most famil iar is the starting battery in your automobile An automotive starting battery is designed to deliver a F From large amount of current for a short period of time Alternator so it can start your engine Only a small portion of the battery s capacity is used when starting the engine and it is quickly recharged by the running engine It is not designed for repeated charge discharge cycles where the battery is almost com pletely discharged and then recharged If it is used To Chassis in this kind of deep discharge service it will wear out very rapidly Vehicle Battery Figure 4 PROwatt 1500 Connected Directly to Engine Bat Deep cycle lead acid batteries are designed for tery for Light Duty Applications deep discharge service where they will be repeat edly discharged and recharged They are marketed for use in recreational vehicles boats and electric golf carts so you may see them referred to as RV batteries marine batteries or golf cart batteries For most applications of the PROwatt 1500 Statpower recommends that you use one or more deep cycle batteries that are separated from the starting battery in your vehicle by a battery isolator A battery isolator is a solid state electronic circuit which allows equipment to be operated from an auxiliary battery without danger of dis
27. limits The PROwatt 1500 will normally start single phase induction motors rated at 3 4 HP or less If a motor refuses to start observe the battery voltage indicator while trying to start the motor If the battery volt age indicator drops below 11 volts 22V for PW1500 24 while the PROwatt 1500 is attempting to start the mo tor this may be why the motor won t start Make sure that the battery connections are good and that the battery is fully charged If the connections are good and the battery is charged but the voltage still drops below 11 volts 22V for PW1500 24 you may need to use a larger battery Input Voltage The PROwatt 1500 will operate from input voltage ranging from 10 volts to 15 volts 20 30V for PW1500 24 It operates best when the voltage is in the range from 12 volts to 14 5 volts 24 29V for PW1500 24 If the voltage drops below 10 7 volts 21 5V for PW1500 24 an audible low battery warning will sound and the voltage indica tor will be in the lower red zone The PROwatt 1500 will shut down if the input voltage drops below 10 volts 20V for PW1500 24 This protects your battery from being over discharged The PROwatt will not restart un less the input voltage exceeds 11 volts 22V for PW 1500 24 19 The PROwatt 1500 will also shut down if the input voltage exceeds 15 volts 30 V for PW1500 24 This protects the inverter against excessive input voltage The voltage indicator will be in the upper red zone Although the
28. mable fumes Explosion or fire may re sult Thoroughly ventilate the battery compartment before making this connection STEP 6If you are using a battery selector switch switch it to select one of the batteries Set the ON OFF switch on the PROwatt 1500 to the ON position Check the meters and indicators on the front panel of the PROwatt 1500 The voltage bar graph should indicate 12 to 13 volts 24 26V for PW1500 24 depend ing on the voltage of the battery If it does not check your battery and the connections to the PROwatt 1500 The other indicators should be off 16 4 5 Remote Panel The PROwatt remote switch allows your PROwatt inverter to be switched on off from a convenient remote loca tion while the inverter is mounted out of sight Installation Instructions 1 Cut out the template located on the back page of the manual Figure 14 and position it on the wall where the switch is to be mounted 2 Mark the location of the two holes and the square area to be cut out NOTE Remote switch assembly re quires 0 7 18mm minimum clear panel depth 3 Drill two holes 7 64 2 8mm diameter and remove the cut out area 4 Feed the phone jack connector and wire through the cut out hole in the panel and route the wire to the inverter phone jack receptacle 5 Position the remote switch assembly upright and secure to the panel using the two screws provided Plug the phone jack into the inverter Operating Instructions 1 Tu
29. n many cases you can plug your AC loads directly into the AC receptacle on the front panel of the PROwatt 1500 In other installations you may wish to connect the output of the PROwatt 1500 to existing AC wiring The PROwatt 1500 is equipped with internal terminals to allow permanent connection to existing AC wiring To make a permanent connection follow these steps a Ensure there is no DC voltage supplied to the inverter b Remove the bottom plate from the PROwatt 1500 four screws This will expose the AC terminal blocks see Figure 9 c Remove the knockout on the rear panel and feed your three con ductor AC cable 14 AWG through the hole Use a standard strain relief connector cable clamp for electrical junction boxes available at hardware stores and building supply stores to hold Figure 9 PROwatt 1500 AC output con the cable in the hole nections d Connect the ground lead of your AC cable to the internal ground lug on the rear panel of the PROwatt 1500 Strip the hot and neutral leads of your AC cable 1 4 inch 6mm and connect to the AC output terminal blocks on the PROwatt 1500 circuit board labeled AC NEUT and AC HOT in Figure 9A Check carefully that you have main tained correct polarity see below and that there are no loose strands of wire Make certain that the ground lead which may be a bare wire is cut as short as possible and is not touching any component within the PROwatt e Replace the bottom panel
30. o have an RMS ae P SN root mean square voltage of 115 volts the same as standard household power Most AC voltmeters both digital and analog are sensitive to the average value of the waveform rather than the RMS value They are calibrated for RMS voltage under the assumption that the waveform measured will be a pure sine wave These meters will not read the RMS voltage of a modified sine wave correctly They will read about 2 to 20 volts low when measuring the output of the PROwatt 1500 For accurate measurement of the output voltage of the PROwatt 1500 a true RMS reading voltmeter such as a Fluke 87 Fluke 8060A Beckman 4410 or Triplett 4200 must be used 3 Quick Checkout This section will give you the information you need to quickly hook up your PROwatt 1500 and check its per formance before going ahead with permanent installation You will need the following a a 12 volt DC power source 24 volt for PW1500 24 b two cables to connect the power source to the PROwatt 1500 c a test load that can be plugged into the AC receptacle on the PROwatt 1500 3 1 Power Source The power source must provide between 11 and 15 volts 22 and 30 volts for PW1500 24 DC and must be able to supply sufficient current to operate the test load As a rough guideline divide the wattage of the test load by 10 by 20 for PW1500 24 to obtain the current in amperes the power source must deliver Example Test load is rated at 250 watts Power source mu
31. odern high frequency power conversion techniques that eliminate the bulky transformers found in inverters based on older technology The inverter stage uses advanced power MOSFET transistors in a full bridge configuration This gives you excellent overload capability and the ability to operate tough reactive loads like lamp ballasts and induction motors 445VpC INVERTER SECTION DC DC POWER CONVERTER MOSFET Galvanic Isolation DC input is rated at 24 Volts for the PROwatt 1500 24 model CHASSIS GND NEUT HOT GROUND AC OUTPUT Figure 1 PROwatt 1500 Principle of Operation BAR GRAPH METERS display battery voltage and current Current should be in the green zone for continuous operation The inverter will operate for several minutes when the current is in the yellow zone Operation with battery voltage or current in the red zone of a meter will result in protective shutdown of the inverter OVER TEMP INDICATOR lights and alarm sounds when inverter protects itself against overheating Inverter is shut down while indicator is on Inverter will restart automatically and indicator lamp will turn off when the inverter cools STATPOWER BATTERY DC to AC Power Inverter FRONT VIEW ON OFF SWITCH PROwatt 500 Leave in the OFF position during installation CAUTION This is not a disconnect switch AC OUTLET Delivers 1500 watts of AC power Up to 2000 watts for short Remove power at the source befor
32. oduct If only the current draw is given mul tiply the current draw by 115 to get the power consumption in watts STEP 2For each piece of equipment you will be operating from the PROwatt 1500 estimate how many hours it will operate between battery charging cycles STEP 3Calculate total watt hours of energy consumption total hours running time and average power consump tion as in the following example Equipment Power Consumption Operating Time Watt Hours Power x Operating Time TV amp VCR 115 watts 3 hours 345 Sewing Machine 150 watts 1 hour 150 Waterpik 90 watts 0 25 hour 22 5 Blender 300 watts 0 25 hour 75 Coffee Maker 750 watts 0 3 hour 225 Coffee Grinder 100 watts 0 1 hour 10 Microwave Oven 1500 watts 0 5 hour 750 Totals 5 4 hours 1577 5 watt hours INVERTER BATTERY SIZE DUAL 8D s POWER TYPICALLOAD RESERVE CAPACITY 900 MINUTES STEREO SYSTEM OPERATING TIME 9HOURS 14HOURS 20HOURS 4oHOURS 80HOURS OUTPUT BCI GROUP SIZE F 2 7 19 COLOR TV OPERATING TIME 6HOURS 10HOURS 20HOURS 40HOURS COMPUTER SYSTEM OPERATING TIME 3HOURS 45HOURS 10HOURS 20HOURS WATTS AMP HRS ao w 200 400 300 BLENDER OPERATING TIME 12 HOURS 400 PoweR DRILL OPERATING TIME 10 HOURS 24 75 600 SMALLCOFFEE MAKER OPERATINGTIME N R NR 1H0uR 25HOURS 6HouRS N R OPERATING TIME NR NR 1000 roaster OPERATING TIME ne ne NR f iHouR 3HouRs 1500
33. or by ampere hour capacity Battery reserve capacity is a measure of how long a battery can deliver a certain amount of current usually 25 amperes For instance a battery with a reserve capacity of 180 minutes can deliver 25 amperes for 180 minutes before it is completely discharged Ampere hour capacity is a measure of how many amperes a battery can deliver for a specified length of time usually 20 hours For example a typical marine or RV battery rated for 100 ampere hours can deliver 5 amperes for 20 hours 5 amperes x 20 hours 100 amp hrs Actual battery capacity decreases as discharge current increases A battery rated at 100 ampere hours which can deliver 5 amperes for 20 hours may deliver 20 amperes for only 4 hours resulting in an actual capacity of 80 am pere hours For this reason it is difficult to compare rated ampere hour capacity with battery reserve capacity For example a battery with a reserve capacity of 180 minutes has the following calculated ampere hour capacity 180 min 60 3 hr 3 hr x 25 amps 75 amp hrs However its actual ampere hour rating will be closer to 100 ampere hours because it is rated at the discharge cur rent required to get 20 hours of operation about 5 amperes To determine the battery capacity you require follow these steps STEP 1 For each piece of equipment you will be operating from the PROwatt 1500 determine how many watts it consumes This can normally be found on a label on the pr
34. rn the Inverter Switch ON 2 Press the Remote for ON LED illuminated Press the Remote for OFF LED off 3 Leave the inverter switch ON Switching the inverter OFF will disable the remote switch 17 5 Operation To operate the PROwatt 1500 turn 1t on using the ON OFF switch on the front panel The PROwatt 1500 is now ready to deliver AC power to your loads If you are operating several loads from the PROwatt 1500 turn them on separately after the PROwatt has been turned on This will ensure that the PROwatt does not have to deliver the starting currents for all the loads at once 5 1 Outlets Controls and Indicators AC Outlet The AC outlet on the PROwatt 1500 is a Ground Fault Circuit Interrupter GFCI outlet This device will protect you against hazardous electrical shock that could be caused by dampness faulty mechanism worn insulation etc You may still feel a shock but the GFCI should cut it off quickly enough so a person in normal health should not have serious injury infants and small children may still be affected Test Procedures Like any other safety device the GFCI should periodically be checked to make sure it is operating properly Just follow the simple instructions below 1 Push TEST button and RESET button should pop out This should result in power being OFF Verify by plugging test lamp into the outlet CAUTION If TEST lamp remains lit when the RESET button pops out or
35. secensbessesnseseecesSbessusasesescss dueesesnsecossesssescesedesscsesaetes soticsecessoeses 18 5 1 Outlets Controls and Indicators oooooononononononononononoononnonononononononononononononononononononono nono no nono no nono nonanonanona 18 3 2 Operating LIM Senen nesne nerra cea E et e ETa E a ART a id 19 6 Trou DlOSHOOUING eecisssecs ci ccceecsesscssacestevencteecebsdeccesecesVecssoccsessencssoaebscucsonncessecsoedenceseoessieesdoa dees sassoonbeceveesenatesoabedesees 20 6 1 Common Problems ct rta ieee tate duo andante orto he odes Baba eNO eo ahd Nh wea Law vo lols iia EN 20 6 2 Troubleshooting Guide gece se cus ea eena ee ea a eaa aei e aiee a E enea eana eo aaia ase 21 1 Maintenance AA cuonsessecedsuue veouccensedesevecssubeesecesscucoseseiessUcesssacesusaesedcissenessesees 22 BS WALLAMEY NN 22 8 1 Warranty Terms a a cate Aa ia boli eels 22 8 2 To Obtain Warranty Service ger ctiististeccdeste cageeies sacessee E erR Eoo SEEEN ENEE OERA EE NEE EEEE EEan 22 9 Specifications A seno SSeS cesssessnconsenseuaessduadcneatecsensesseceserecoseseses 24 9 1 Electrical Perf rmanc ati iie iero iee e Gaus eaa i ana Eea E E hoes osbveesaeehe dnsiviescnBebetvs 24 A A 0 IKA E E E EEE E E E EEEE O EE E EEEE EE E EEES 24 PROwatt is a trademark of Statpower Technologies Corporation Copyright 1996 1997 Statpower Technologies Corporation All rights reserved 1 Introduction Your new PROwatt 1500 inverter is a member of the most advan
36. st be able to deliver 250 10 25 amperes or 12 5Amps for 24 volt model Battery Use a fully charged 12 volt nominal battery that can deliver the required current while maintaining its voltage above 11 volts 22 volts for 24 volt battery system A fully charged 12 volt automobile battery is capable of delivering up to 50 amperes without an excessive voltage drop DC Power Supply Use a well regulated DC power supply that has an output voltage between 11 volts and 15 volts 22 30 volts for PW1500 24 and can deliver the required current If the supply is adjustable make sure that the output voltage is adjusted to be between 11 volts and 15 volts 22 30 volts for PW1500 24 the inverter may shut down if the volt age is outside these limits and may be damaged if the voltage is above 16 volts 32 volts for PW1500 24 Also ensure that any current limit control is set so that the power supply can deliver the required current 3 2 Cables Your cables must be as short as possible and large enough to handle the required current This is to minimize the voltage drop between the power source and the inverter when the inverter is drawing current from the power source If the cables introduce an excessive voltage drop the inverter may shut down when drawing higher cur rents because the voltage at the inverter drops below 10 volts 20 volts on PW1500 24 We recommend 2 AWG 4 AWG on PW1500 24 stranded copper cable that is no longer than 4 f
37. t 1 2 metres if you want to test the PROwatt 1500 to its maximum ratings For short term testing at reduced power levels the guidelines below should be followed Test Load Power Minimum Cable Size Minimum Cable Size Consumption For PW1500 12 volt PW 1500 24 volt Short Term Test 100 watts 16 AWG copper 18 AWG copper 250 watts 12 AWG copper 16 AWG copper 500 watts 8 AWG copper 12 AWG copper Ideally the cable should be no more than 4 ft 1 2 meters long The end of the cable to be connected to the inverter must have its insulation stripped for about 1 2 inch 1 25 cm back from the end exposing the bare copper conductor The other end of the cable which is connected to the 4 power source must be terminated with a lug or other connector that allows a secure low resistance connection to be made to the power source For instance if the power source is a battery the cable must be terminated with a battery terminal that clamps to the post on the battery A solid low resistance connection to the power source is essential for proper operation of the PROwatt 1500 3 3 Test Loads Use only equipment rated for 110 120 volt 60 Hz AC operation that has a power consumption of 1500 watts or less We recommend that you start with a relatively low power load such as 100 watt lamp to verify your test set up before trying high power loads PROwatt 1500 Negative Cable Positive Cable Power Source Figure 3 Connections to the
38. the PROwatt 1500 into an electrical system that also uses power from a generator or the util ity line you must include a means of switching between the PROwatt and the other power source that never al acpowertrom lows both to be connected to the AC distribution system Y a CD PROwatt 1500 at the same time This can be as simple as a plug that is plugged into the desired AC power source see Figure 10 S Plug into desired AC Source HA Alternatively you can employ a manual or automatic transfer switch A transfer switch is a double pole double throw DPDT switch that switches both the hot and neutral wires to the AC distribution system from one power source to the other Manual and automatic transfer switches are available from marine and RV dealers They are commonly used to switch between a generator and shore utility power Make sure you purchase an approved switch with AC voltage and Cur C rent ratings that exceeds the output ratings of both the Cy inverter and the other source Junction Box Figure 10 Simple Transfer Switching 3 Do not connect the PROwatt 1500 to an AC branch circuit that has high power consumption loads The PROwatt 1500 will not operate electric heaters air conditioners stoves and other electrical appliances that consume more than 1500 watts PROwatt
39. to have characteristics similar to the sine wave shape of utility power A waveform of this type is suitable for most AC loads including linear and switching power supplies used in elec tronic equipment transformers and motors This waveform is much superior to the square wave produced by many other dc to ac inverters CAUTION RECHARGEABLE APPLIANCES Certain rechargers for small nickel cadmium batteries can be damaged if connected to the PROwatt Two particular types of equipment are prone to this problem 1 small battery operated appliances such as flashlights razors and night lights that can be plugged di rectly into an ac receptacle to recharge 2 certain battery chargers for battery packs used in hand power tools These chargers have a WARNING label stating that dangerous voltages are present at the battery terminals Do NOT use the PROwatt with the above equipment This problem does not occur with the vast ma jority of battery operated equipment Most of this equipment uses a separate charger or trans former that is plugged into the ac receptacle and produces a low voltage output If the label on the ac adapter or charger states that the adapter or charger produces a low voltage ac or de output less than 30 volts the PROwatt will have no trouble powering this charger or adapter safely 145 volts peak 1 E 15 volts RMS TT TT i 0 volts The modified sine wave produced by the 7 am 7 PROwatt 1500 is designed t
40. ufficient battery capacity you may need to use more than one battery Two identical batteries can be connected to and to in a parallel system that doubles capacity and maintains the voltage of a single battery Do not connect batteries from different manufacturers or with different amp hr ratings in parallel De creased battery life may result If you are using different batteries or need to use more than two batteries we recommend that you set up two separate battery banks and use them alternately Battery selector switches are available from marine and RV dealers which allow you to select between two banks of batteries or use both in parallel or disconnect both from the load Figure 7 Parallel Connection of Two Bat teries Chassis Gnd From Alternator or Charger Battery Isolator Chassis Gnd Battery Bank 2 Battery AA AA l Selector Switch PROwatt 1500 Figure 8 Recommended Battery Configuration for Heavy Duty Applications Note PW1500 24 model inverter only 24 Volt systems typically have 2 x 12 Volt batteries connected in series Battery Tips 1 With the exception of sealed gel cell batteries lead acid batteries emit hydrogen and oxygen gases and sulfu ric acid fumes when recharging Vent the battery compartment to prevent accumulation of these gases and do not install electronic or electrical equipment in the battery compartment Do not smoke or carry an open flam
41. when you make this connection since current may flow to charge capaci tors in the PROwatt 1500 Do not make this connection in the presence of flammable fumes Explosion or fire may result STEP 6If you are using a DC power supply as the power source switch it on Set the ON OFF switch on the PROwatt 1500 to the ON position Check the meters and indicators on the front panel of the PROwatt 1500 The voltage bar graph should indicate 11 to 14 volts 22 28 volts for PW1500 24 depending on the voltage of the power source If it does not check your power source and the connections to the PROwatt 1500 The other indicators should be off STEP 7Set the PROwatt 1500 ON OFF switch to the OFF position The indicator lights may blink and the inter nal alarm may sound momentarily This is normal Plug the test load into the AC receptacle on the front panel of the PROwatt 1500 Leave the test load switched off STEP 8Set the PROwatt 1500 ON OFF switch to the ON position and turn the test load on The PROwatt 1500 should supply power to the load If it does not refer to the troubleshooting section of this manual If you plan to measure the output voltage of the PROwatt 1500 refer to Section 2 2 of this manual 4 Installation 4 1 Where to Install The PROwatt 1500 should be installed in a location that meets the following requirements a Dry do not allow water to drip or splash on the PROwatt 1500 b Cool ambient air temperature should be between 0
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