User Manual
Contents
1. damage whether direct indirect consequential or incidental which might arise out of use of such information The use of any such information will be entirely at the user s risk Contact Information Telephone 360 403 7207 Fax 360 691 6862 Email customerservice midnitesolar com Web www midnitesolar com 3 Page 10 220 1 REV A MND3RACCPLME continued MidNite Solar recommends that this system be installed by a professional electrician due to the interaction with the electrical service on the dwelling Please consult all Local State and federal codes that may apply to this install as well as acquire any permits that may be needed This device is not intended to be relied on for life support You will need a Critical Loads panel installed for the battery backup system to power when the utility is down See the drawing below for a basic flow chart of this system MidNite Solar s Grid Tie Battery Backup AC Coupled Flow Diagram Solar Array KwH Meter To or From Utility Grid AC Input Output MNPV4 Disco Combiner An AC coupled system will sell the PV power to the grid under normal conditions When there is a power outage the battery based inverter will open its relay and disconnect from the grid It will produce AC power for the critical loads at this time The grid tie inverter will connect to the battery based inverter to run the loads and charge the batteries from the Solar Panels When the batteries get full ther2. Magnum AC Coupled In a D3R battery box MND3RACCPLME 3 1 13 MND3RACCPLME continued SAVE THESE INSTRUCTIONS These instructions contain important safety and operating instructions for the MidNite Solar Battery Enclosure Size B D D3R and E for residential and commercial applications If you do not fully understand any of the concepts terminology or hazards outlined in these instructions please refer installation to a qualified dealer electrician or installer These instructions are not meant to be a complete explanation of a renewable energy system GENERAL PRECAUTIONS WORKING WITH OR IN THE VICINITY OF A LEAD ACID BATTERY IS DANGEROUS IT IS VERY IMPORTANT THAT BEFORE SERVICING EQUIPMENT IN THE VICINITY OF LEAD ACID BATTERIES YOU REVIEW AND FOLLOW THESE INSTRUCTIONS CAREFULLY If service or repair should become necessary contact MidNite solar Inc Improper servicing may result in a risk of shock fire or explosion To reduce these risks disconnect all wiring before attempting any maintenance or cleaning Turning off the inverter will not reduce these risks Solar modules produce power when exposed to light When it is not possible to disconnect the power coming from the Photovoltaics by an external means such as a combiner cover the modules with an opaque material before servicing any connected equipment Never attempt to charge a frozen battery When it is necessary to remove a battery make sure that the battery bank disco
3. d with cool running water for at least 15 minutes and get medical attention immediately Baking soda neutralizes battery acid electrolyte Keep a supply near the batteries Do not work alone Someone should be in the range of your voice or close enough to come to your aid when you work with or near electrical equipment 2 Page 10 220 1 REV A MND3RACCPLME continued Remove rings bracelets necklaces watches etc when working with batteries photovoltaic modules or other electrical equipment Power from an illuminated photovoltaic array makes a very effective arc welder with dire consequences if one of the welded pieces is on your person To reduce the risk of injury connect only sealed deep cycle lead acid type rechargeable batteries Other types of batteries may leak or burst causing personal injury or damage Notice of Copyright MidNite Solar s Classic charge controller User s Manual Copyright 2010 2011 all rights reserved MidNite Solar Inc reserves the right to revise this document and to periodically make changes to the content hereof without obligation or organization of such revisions or changes unless required to do so by prior arrangement Disclaimer Unless specifically agreed to in writing MidNite Solar Inc a Makes no warranty as to the accuracy sufficiency or suitability of any technical or other information provided in its manuals or other documentation b Assumes no responsibility or liability for loss or
4. delivery to customer MIDNITE SOLAR shall not in any case be liable for any event occurring or defect discovered with regard to said product unless written notice thereof is given to MIDNITE SOLAR within ninety 90 days of such product delivery to customer MIDNITE SOLAR is not responsible for loss or damage to products owned by customer and located on MIDNITE SOLAR S premises caused by fire or other casualties beyond MIDNITE SOLAR s control This warranty is in lieu of all other warranties expressed or implied MIDNITE SOLAR INC 17722 671TH AVE NE UNIT C ARLINGTON WA 98223 Email info midnitesolar com PH 425 374 9060 FAX 360 691 6862 15 Page 10 220 1 REV A
5. e is a relay inside the AC coupled battery based inverter system that disconnects the grid tie inverter to prevent the batteries from being over charged Critical AC Output s Ae r Panel MidNite Battery Enclosure Out To Critical Loads 4 Page 10 220 1 REV A MND3RACCPLME continued You will need to find the appropriate location to install the Battery box both for wiring as well as stability We recommend if it is to be installed outdoors you try to keep it out of direct sunlight You will need to secure the box using the mounting holes in the feet If it is outdoors an appropriate foundation should be installed 5 Page 10 220 1 REV A MND3RACCPLME continued Here is a wiring diagram of the Pre Wired portion of the box as it ships from MidNite BATTERY NEGATIVE GRID DISCONNECT OUTPUT OUTPUT CRITICAL CRITICAL LOADS PANEL INPUT FROM INPUT FROM AC HOT GRID TIE GRID TIE IN INVERTER INVERTER BATTERY Tl POSITIVE UTILITY UTILITY SOLAR inc A o Gas a Ss X BYPASS SWITCH INVERTER AC INPUT DISCONNECT WIRING DIAGRAM AC COUPLED SYSTEM DOES NOT INDICATE COMPONENT LOCATION Before starting this project please make sure the Grid tie inverter is off line and make sure you follow all necessary safety precautions Always shut off all AC power before working on any circuits Also make sure to switch off the Battery breaker in the AC coupled system before installing batter
6. en on the door and keep an eye on the battery voltage The voltage should rise as the batteries are filled If the loads are too great on the critical load panel it may not rise if this is the case turn some loads off and when the battery voltage rises to the 28 8 we programmed into the AUX relay When the relay opens the grid tie should drop off and the battery voltage should drop slowly until it reaches the 26 volts we programmed at this time the relay should close and 5 minutes later the grid tie system will re engage WARNING If you see the voltage go above 29 and the relay does not disengage turn off the Grid tie inverter AC input breaker and re check all the settings programmed into the router 14 Page 10 220 1 REV A MND3RACCPLME continued MIDNITE SOLAR INC LIMITED WARRANTY MidNite Solar Power electronics sheet metal enclosures and accessories Midnite Solar Inc warrants to the original customer that its products shall be free from defects in materials and workmanship for a period of five 5 years At its option Midnite Solar will repair or replace at no charge any Midnite product that proves to be defective within such warranty period This warranty shall not apply if the Midnite Solar product has been damaged by unreasonable use accident negligence service or modification by anyone other than Midnite Solar or by any other causes unrelated to materials and workmanship The original consumer purchaser must retain original p
7. ies There are 3 distinct electrical connections you need to make to the Pre Wired AC coupled system 1 A 4 wire 120 240V AC branch circuit 30 amps or less from the utility Main panel to the buss bars Labeled AC Hot In 2 A 4 wire 120 240VAC circuit from the buss bars labeled AC Out to Critical Loads panel to the sub panel with the critical loads in it This should be the same ampacity as the feeder in Step 1 above 3 The 120 240vac circuit from the Grid tied inverter should be removed from the utility main panel and wired to the buss bars labeled Input from Grid Tie inverter Keep in mind this circuit 1s protected by a 15 amp 120 240VAC breaker in the AC coupled box The Magnum inverter is limited in the capacity of grid tie it can handle If the grid tie system is greater than 15 amps at 240V AC please contact customer service at MidNite Solar for help designing the system 6 Page 10 220 1 REV A MND3RACCPLME continued Shown below are the Buss Bars for step 1 this is where the feeder from the utility main panel will connect The first picture shows the common AC Neutral as well as the Earth ground buss bar These 2 buss bars will be used in all 3 steps WHY WLM a m Wi 7 Page 10 220 1 REV A MND3RACCPLME continued Buss bars for Step 2 AC Out to the Critical Loads panel 7 F SRN MW WLM oe HY WLM 8 Page 10 220 1 REV A MND3RACCPLME continued Below is a wiri
8. ng diagram showing the AC wiring to be done in the field e lt Fi RA mu ME Grid Tie Inverter Critical Loads panel Utilty AC Main Panel From Utility 9 Page 10 220 1 REV A MND3RACCPLME continued Now that all 3 AC wiring steps are complete we need to wire in the batteries Batteries require safety precautions when working on or around Please consult the battery manufacturer s safety instructions before working with the batteries Always check the polarity of the battery with your voltmeter in case the manufacturer labeled wrong The Cables are included and as you can see from the picture you simply need to slide the 4 batteries in and connect them in a series string for 24 vdc We are recommending the Concorde PV X3050T 6 volt batteries for this For other battery arrangements or larger battery banks please consult with customer service at MidNite Solar NOTE Never used Vented batteries in this system use only SEALED batteries As seen above the very Left battery has its Negative terminal to the Left The series string continues across to the very right battery where the positive terminal is on the far right The illustration below shows how to wire the 4 batteries 10 Page 10 220 1 REV A MND3RACCPLME continued Now that all the wiring is done we need to power things up We will start by powering the Magnum inverter on and checking the programming Shown below is a close up
9. nnect breaker is in the off position and that the PV breakers grid breakers and any other sources of power to the inverter are in the off position Then remove the negative terminal from the battery first To reduce risk of battery explosion follow these instructions and those published by the battery manufacturer as well as the manufacturer of any additional equipment used in the vicinity of the batteries Before installing the battery enclosure read all instructions and cautionary markings in or on any connected electrical equipment Avoid producing sparks in the vicinity of the batteries Provide ventilation to clear the area of explosive gases Sealed AGM and Gel batteries do not under normal conditions create explosive gases Be especially cautious when using metal tools Dropping a metal tool onto batteries can short circuit them The resulting spark can lead to personal injury or damage to the equipment Clean all battery terminals Very high currents are drawn from the batteries even a small amount of electrical resistance can result in overheating poor performance premature failure or even fire Have plenty of fresh water and soap nearby in case battery acid contacts skin clothing or eyes Wear complete eye and clothing protection Always avoid touching eyes while working near batteries If battery acid or battery terminal corrosion contacts skin or clothing wash immediately with soap and water If acid enters the eyes immediately floo
10. shot of the breakers Below is an explanation of what they all do and how you want them for Normal operation as well as the sequence for power up From Left to Right you have 15 amp 120 vac general use outlet 15 amp AC breaker for the general use outlet This should be on at all times Invert or Bypass Slider Up is Normal and down by passes the Magnum inverter This will normally always be up 30 amp 120 240 Input breaker from the utility main panel This would normally always be on 15 amp 120 240 Input from the Grid tie inverter This will normally be on but leave it off for the initial power up 1 amp DC breaker to power the Relay for the Grid tie inverter this should always be on 250 amp DC battery breaker for the Magnum inverter This will normally be on but should be off during installation 11 Page 10 220 1 REV A MND3RACCPLME continued At this point we need to turn the Large 250 amp breaker on The one on the far right to power up the Magnum inverter After power up we strongly suggest going through the settings in the Remote for the Magnum to verify everything is set correctly Below is a picture of the Router We suggest you consult the Magnum Routers owner s manual for the most up to date info on the Router To navigate through the 1 through 3 menus follow the steps below On initial Power up the Router will ask you to set the time To Set the Current Time 1 Turn the Select knob to the hour of da
11. to go back to the menus 02A Search Watts Set this to OFF Now press the SETUP Button again Scroll the Select knob to put the arrow on 3 Charger and press the select knob to enter the Inverter menus To set the menu items scroll to the menu item you need to edit and press the Select knob Scroll the select knob to change the value and press the select knob to go back to the menus 03A AC Input Amps 30 amps 03B Battery Type AGM 1 03C Max Charge rate 20 03G Final Charge Stage Float That concludes the programming Now you need to turn the inverter on by pressing the Inverter ON OFF button Now finish commissioning the system by following the steps below Turn on the AC breaker in the AC Main Panel from the utility At this point the inverter should connect to the grid and the Critical Loads panel should have power Turn on the Grid tie inverter input breaker and after 5 minutes the grid tie inverter should connect and start working provided the sun is out 13 Page 10 220 1 REV A MND3RACCPLME continued After everything is set and everything appears to be in order we suggest running a test when you have time to watch the system through a cycle To run the test Turn off the Inverter AC input breaker inside the AC Coupled box At this time the system should power the critical loads panel from the batteries and the grid tie inverter should be charging batteries What we want to watch is the Magnum Router scre
12. urchase receipt for proof of purchase as a condition precedent to warranty coverage To receive in wartranty service the defective product must be received no later than two 2 weeks after the end of the warranty period The product must be accompanied by proof of purchase and Return Authorization RA number issued by Midnite Solar For an RMA number contact Midnite Solar Inc 17722 67th Ave NE unit C Arlington WA 98223 425 374 9060 Purchasers must prepay all delivery costs or shipping charges to return any defective Midnite Solar product under this warranty policy Except for the warranty that the products are made in accordance with the specifications therefore supplied or agreed to by customer MIDNITE SOLAR MAKES NO WARRANTY EXPRESSED OR IMPLIED AND ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WHICH EXCEEDS THE FOREGOING WARRANTY IS HEREBY DISCLAIMED BY MIDNITE SOLAR AND EXCLUDED FROM ANY AGREEMENT MADE BY ACCEPTANCE OF ANY ORDER PURSUANT TO THIS QUOTATION MIDNITE SOLAR WILL NOT BE LIABLE FOR ANY CONSEQUENTIAL DAMAGES LOSS OR EXPENSE ARISING IN CONNECTION WITH THE USE OF OR THE INABILITY TO USE ITS GOODS FOR ANY PURPOSE WHATSOEVER MIDNITE SOLAR S MAXIMUM LIABILITY SHALL NOT IN ANY CASE EXCEED THE CONTRACT PRICE FOR THE GOODS CLAIMED TO BE DEFECTIVE OR UNSUITABLE Products will be considered accepted by customer unless written notice to the contrary is given to MIDNITE SOLAR within ten 10 days of such
13. y and then press the Select knob Make the adjustments by turning the Select knob and when done press the Select knob 2 Turn the Select knob to the correct minute setting and then press the Select knob Make the adjustments by turning the Select knob and when done press the Select knob 3 Turn the Select knob to the appropriate AM or PM setting Make the adjustments by turning the Select knob and when done press the Select knob Router 12 Page 10 220 1 REV A MND3RACCPLME continued Push the CTRL Button Turn the Select knob to show 01 AC In Control Press the Select knob to Edit 01 Scroll the select knob to select Auto Connect and press the select knob again Press the SETUP Button Turn the Select knob to put the arrow on 1 Router and press the select knob to enter the Router menus To set the menu items scroll to the menu item you need to edit and press the Select knob Scroll the select knob to change the value and press the select knob to go back to the menus O1F Aux Relay State Set this to Auto 01G Aux Relay Voltage trip point Relay close 28 8 Relay open 29 4 01H Aux Relay Timing Close delay 10 Open delay 1 Now press the SETUP Button again Scroll the Select knob to put the arrow on 2 Inverter and press the select knob to enter the Inverter menus To set the menu items scroll to the menu item you need to edit and press the Select knob Scroll the select knob to change the value and press the select knob
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