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MidNite Solar DIY E-Panel Owner's Manual

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MNE125DIY-120S Manual
DIY E-Panel Owner's Manual
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Summary of Contents for MidNite Solar DIY E-Panel

  • Page 1 MNE125DIY-120S Manual DIY E-Panel Owner’s Manual 1| P a g e 1 0 - 5 4 5 - 1 R E V : A...

  • Page 2: Table Of Contents

    Installation .......................... 13 Location Considerations ......................13 Knockout Prep Info ........................15 Mounting Procedures ........................ 15 Wiring the DIY Inverter & DIY E-Panel ................. 17 Ground Wiring ........................... 17 AC Kit ............................19 Batt Kit ............................21 PV Kit ............................22 SPD Wiring ..........................

  • Page 3: Introduction

    MNE125DIY-120S Manual INTRODUCTION The DIY E-Panel enclosure from MidNite Solar provides AC and DC over-current protection and disconnects required for an NEC compliant, renewable energy system. The MNE125DIY-120S E-Panel is specifically designed to accommodate the DIY MN5048DIY inverter. This manual does not provide brand specific information about photovoltaic panels, batteries, et cetera.

  • Page 4: Safety Instructions

    SAVE THESE INSTRUCTIONS THIS MANUAL CONTAINS IMPORTANT INSTRUCTIONS FOR THE MIDNITE SOLAR MNE125DIY- 120S DIY E-PANEL THAT SHALL BE FOLLOWED DURING INSTALLATION AND OPERATION. 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.

  • Page 5: Safety Precautions

    MNE125DIY-120S Manual DC and AC wiring is disconnected prior to installing or performing maintenance on the inverter. Turning off the inverter will NOT reduce this risk; the inverter must be totally disconnected from all sources. • Over-current protection for the AC & DC wiring is not provided as an integral part of the DIY inverter.

  • Page 6: How To Kill Your Batteries

    MNE125DIY-120S Manual manufacturer are followed to extend the life of the batteries and to prevent damage to the batteries while charging. • The battery bank should be installed in a clean, dry, ventilated environment that is protected from high and low temperatures. If installed in a vehicle/boat, the batteries must be mounted upright (if using liquid batteries) and securely fastened.

  • Page 7: How An Inverter/Charger Works

    • Failing to keep all connections clean. WARNING! Verify correct polarity with a multimeter BEFORE connecting the battery cables to the DIY E-Panel. HOW AN INVERTER/CHARGER WORKS Inverter Mode When an inverter is properly connected to batteries and turned on, the direct current (DC) from the batteries is transformed into a pure sine wave alternating current (AC).

  • Page 8: Wiring Requirements

    MNE125DIY-120S Manual Standby (Charger) Mode When an external source of AC power (utility or generator) is connected and qualified on the inverter’s AC input, the inverter then operates in Standby mode. The inverter operates as a battery charger to convert the incoming AC power into DC power to recharge the batteries; at the same time, the inverter automatically closes an internal AC transfer relay to pass the incoming AC power directly to the inverter’s output to continue powering the connected AC loads.
  • Page 9 The inverter requires a reliable return path directly to the battery. • The DC busbars in the DIY E-Panel have dual sizes. The smaller nine holes accept #6 to #14 AWG wire and the larger two holes accept up to #1/0 AWG.

  • Page 10: Ac Wiring & Over-Current Protection

    (UL1077 standards) and have a means to disconnect the AC circuits. • AC busbars (for neutral and hot) in the DIY E-Panel have dual sizes. The smaller nine holes accept #6 to #14 AWG wire and the larger two holes accept up to #1/0 AWG.

  • Page 11: Grounding Requirements

    MNE125DIY-120S Manual AC Over-Current Protection • Over-current protection for power-feeder conductors from the inverter shall be within seven inches of the output connections or may be within 40 inches of the output connections if the unprotected insulated conductors are contained throughout their entire distance in a sheath or enclosure such as a conduit/junction box or enclosed panel.
  • Page 12 DIY Inverter & E-Panel Grounding • The easiest grounding installation with the DIY inverter and DIY E-Panel is shown below in Figure 1. The reason it is easiest is that the entire system is bonded together at the same ground busbar inside the DIY E-Panel AND there is only one ground rod.

  • Page 13: Installation

    Location Considerations • Locate the DIY E-Panel as close to the batteries as possible. Long DC wires tend to lose efficiency and reduce the overall performance of an inverter. Do not mount where it will be exposed to gases produced by the batteries. Gases are corrosive and will damage the inverter;...
  • Page 14 The area must be free from any risk of condensation, water, or any other liquid that can enter or fall on the inverter. The DIY inverter and DIY E-Panel is indoor rated and should not be placed outside unless precautions are made to keep rain and moisture off the system.

  • Page 15: Knockout Prep Info

    DIY E-Panel to the mounting surface using appropriate mounting hardware. • Now align the DIY inverter above the DIY E-panel, watch for the wires coming out of the top of the E-panel. Mate the two units together. Secure the DIY inverter to the wall with appropriate hardware.
  • Page 16 MNE125DIY-120S Manual Figure 3 shows the DIY E-Panel as wired. Take a moment to review this system diagram. Notice the different circuit breakers, busbars, inverter terminal blocks, and the flow of the wiring. Figure 3 16| P a g e...

  • Page 17: Wiring The Diy Inverter & Diy E-Panel

    WIRING THE DIY INVERTER & E-PANEL The DIY E-Panel has 3 parts kits inside, labeled AC KIT, DC KIT, and PV KIT. It is easiest to wire the E-Panel kit-by-kit. Reference Figure 5 on next page. Notice how the E-Panel is divided into 3 sections based on the 3 parts kits.
  • Page 18 MNE125DIY-120S Manual Figure 5 18| P a g e 1 0 - 5 4 5 - 1 R E V : A...

  • Page 19: Ac Kit

    MNE125DIY-120S Manual WARNING! Ensure all sources of DC power (i.e., batteries, solar, wind, or hydro) and AC power (utility or AC generator) are de-energized (i.e., breakers opened, fuses removed) before proceeding—to prevent accidental shock. AC KIT Install AC Breakers (Figure 6) Locate the AC breakers and wires in the AC KIT and install as follows: Figure 6 #1 –...
  • Page 20 DIN rail. DO NOT connect to AC source at this time. TORQUE SPECS DIY E-Panel DIY Inverter Battery Breaker Studs - 220 in-lbs AC Terminal – 10.6 in-lbs Batt— Busbar Stud – 220 in-lbs PV Terminal –...

  • Page 21: Batt Kit

    MNE125DIY-120S Manual BAT KIT Install Battery Breaker (Figure 9) Locate the Batt breaker and wires in the BAT KIT and mount the Batt breaker to the DIN rail. Align Batt breaker to the front cover opening. Secure breaker to DIN rail. Figure 9 BAT Wiring (Figure 10)

  • Page 22: Pv Kit

    MNE125DIY-120S Manual PV KIT Install PV Breaker (Figure 11) Locate the PV breaker and wires in the PV KIT and mount the PV breaker to the DIN rail. Align PV breaker to the front cover opening. Secure breaker to DIN rail. Figure 11 PV Wiring (Figure 12)

  • Page 23: External Wiring

    External Ground Wiring (Figure 14) #4 – Connect #6 AWG wire between Ground busbar and ground rod if wiring the DIY E-Panel in one of the two recommended grounding methods (pages 12 & 13). Otherwise, consult the NEC for proper GEC wire gauge.

  • Page 24: Energizing The Diy Inverter & Diy E-Panel

    ENERGIZING THE DIY INVERTER & DIY E-PANEL Read and follow the information below and the procedural steps listed by number to properly energize and test the DIY Inverter and DIY E-Panel. • Ensure critical or primary load center is de- energized or disconnected.
  • Page 25 MNE125DIY-120S Manual Step #1 - Battery • Voltmeter – Measure for battery bank voltage between the inverter Battery breaker’s DC+ busbar (at bottom of breaker) and the Batt- busbar. o Battery bank voltage present(40-60VDC)? ▪ Yes – Good ▪ No – Check DC wiring to the battery. Check batteries. •...
  • Page 26 MNE125DIY-120S Manual • Check inverter display via programming buttons for 120VAC (+/- 5VAC) IN at 60Hz. Refer to inverter manual. • Turn on the AC OUT breaker. • Voltmeter – Measure for 120VAC (+/- 5VAC) between AC OUT busbar and AC Neutral busbar.

  • Page 27: Technical Drawings

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  • Page 32: Warranty

    Those components are warranted by the original manufacturer. 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.
  • Page 33 MNE125DIY-120S Manual 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 damage whether direct, indirect, consequential, or incidental, which might arise out of use of such information.

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