How To Connect A Solar Panel To A Power Supply

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1 SolarWholeSaler.ca holesaler.ca SolarW Solar Installation Guide - RV - Motor Homes - Trailers - Boats

2 Index Tools and Hardware Needed...1 Parallel Solar Panel Connections...2 Serial Solar Panel Connections...3 Inverter Connection Diagram...4 Mounting Kit Installation...5 Battery Connection Diagrams...6

3 Tools & Hardware Needed Tools Power Drill 9/64 Drill Bit 3/8 Nut Driver Wire Cutters Caulking Gun Mounting HardWare Z-Bracket Stainless Steel Nuts & Bolts 10 x 1 Inch Wood/Sheet Metal Screw Quad Caulking (Advanced Formula Sealant & Glue) Page 1

4 Planning & Starting The Installation Layout & Configuration 1. Figure out how many panels you will need, and the amount of panels you can actually fit on the space you will be installing them. 2. Measure how much wire you will need, by measuring where and how the wire will run to the charge controller than to the batteries. 3. Batteries to Inverter (Inverter is typically very close to batteries because of the amount of Amperage needed to run them.) Solar Panel Single & Parallel Configurations 1. Single Panel Connection 2. Double Panel Connection 3. Triple Panel Connection Single Panel Connection Double Parallel Panel Connection (Increases Amperage) Mc4 Parallel Connectors Triple Parallel Panel Connection (Increases Amperage) Mc4 Triple Parallel Connectors Page 2

5 Planning & Starting The Installation MPPT Charge Controller Serial & Parallel Connections This diagram shows two 37 Volt Solar Panels connected in series which increases the voltage to 74 Volts. The MPPT charge controller will match the battery voltage and convert the rest into Amperage allowing it to use up to 97 % of the solar panel power. The efficiency can be up to 30% more than regular PWM charge controller. Double Panel Serial Connection 37 Volt Solar Panels 37 Volt Solar Panels 4 - Panel Serial & Parallel Connection 37 Volt Solar Panels 37 Volt Solar Panels 37 Volt Solar Panels 37 Volt Solar Panels Page 3

6 Inverter Connection Diagram Inverter Installation Diagram - Batteries fasten to inverter terminals using 3/8 connectors normally. (Terminal size is based on inverter & Battery Type) - Cable thickness is determined by Length Volts and Amperage. Good Practice to use 00AWG Wire no longer than 4 feet. - Any wires/cables coming from battery power source need to have a protective fuse with the positive line. Inverter Connection Diagram Awg Wire no longer than 4 foot 12V-DC Inverter Terminals Proper rated fuse Battery/Protection Fuse (from battery to inverter) (Fuse needs to be as close to battery terminal as possible) Fuse Amp size is based on inverter Wattage. (Total Watts divided by Volts = Fuse Amp Size ) Some Examples: 12 Volt Inverters A: 1500 Watt Inverter = 125A Fuse B: 2500 Watt Inverter = 220A Fuse C: 3500 Watt Inverter = 300A Fuse D: 5000 Watt Inverter = 425A Fuse Inverter Connection Diagram Page 4

7 Mounting Kit Installation Solar Panel Mounting (12" Mounting kit installation example) Layout & Configuration - Install mounting on solar panel frame (12" mounting kit comes with Z-Bracket, nuts and bolts to fasten directly onto solar panel) - Find a spot that you can run down your cable easily (ventilation or drill a hole through the roof top) - Place solar panel as close to your wire drop down spot as you can. - Refer to below diagram for installation. STEP 1. Fasten Z-brackets to solar panel frame ( Depending on the solar panel you might have to drill another hole in the panel frame so that the z-brackets can be fastened properly to panel. STEP 2. Place solar panels into its position. Fastened Z-Bracket (8) Stainless steel nuts & bolts fastened to solar panel using Z-Bracket. Z-Bracket Panel Nuts & Bolts Fasten Z-Bracket with Nuts & Bolts to Solar Panel STEP 3. Connect your MC4 cable to panels and fish down your wire to the charge controller. Cut and splice the cable once you reach charge controller. Now wire the spliced cable into solar panel connections labelled solar panel. Take the left over of the wire with the 3/8 lugs and do the same but wire it into battery terminals. STEP 4. Drill Pilot Holes for 12" z-brackets into roof. (Use 9/64 Drill Bit Size) In order to keep pilot hole lined up lift one side at a time and liberally caulk the pilot holes with QUAD, and under belly of the two z-brackets. Do the same to other side and than lag bolt the panels down onto roof. Wire can be dropped down vents or drill a hole through the roof. (Caulk the hole liberally) STEP 5. Connect Charge Controller (Use charge controller manual) STEP 5. Connect Charge Controller To Battery System. Page 5

8 Serial & Parallel Battery Connection Diagrams 6 Volt Batteries in Series (Series Increases Voltage) 6 Volt Batteries in Series (Series Increase Voltage) 24V 6 Volt Batteries in Series and Parallel (Increase Voltage & Amp Hours) 6 Volt Batteries in Series & Parallel (Increase Voltage & Amp Hours) Doubled Amp Hours Doubled Amp Hours 24V Page 6

9 Battery in Series Jumper Cable Wire Diagram of solar charging system This setup is with an MPPT Charge controller and a Meter Controller Meter Charge Controller

10 RV Installation Guide Solar Panels Solar Homes RV & Boat Kits Manual Designed By: Jon Rotter