1. Manuals
  2. Brands
  3. MidNite Solar Manuals
  4. Power distribution unit
  5. MNPV4BY3
  6. Manual

MidNite Solar MNPV4BY3 Manual

12-string, 3-output pv combiner
Hide thumbs

Advertisement

Table of Contents

MNPV4BY3 MANUAL
12-String, 3-Output PV Combiner
MNPV4BY3
This entire manual is printed without color but is available for download—with many of the
diagrams available in color—on our website at midnitesolar.com.
1| P a g e
1 0 - 5 5 5 - 1
R E V : C

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the MNPV4BY3 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for MidNite Solar MNPV4BY3

Summary of Contents for MidNite Solar MNPV4BY3

  • Page 1 MNPV4BY3 MANUAL 12-String, 3-Output PV Combiner MNPV4BY3 This entire manual is printed without color but is available for download—with many of the diagrams available in color—on our website at midnitesolar.com. 1| P a g e 1 0 - 5 5 5 - 1...
  • Page 2 MNPV4BY3 MANUAL INTRODUCTION The MNPV4BY3 is a 1000VDC photovoltaic (PV) combiner utilizing touch-safe fuseholders, offering three separate PV outputs for off-grid and grid-tie applications. Up to four PV strings are combined per PV output. Features: • SGS Listed to UL Standards for USA and Canada •...
  • Page 3 Indicates information that emphasizes or supplements important points of the main text. STANDARDS The MidNite Solar MNPV4BY3 Photovoltaic Combiner conforms to UL 1741, Safety for Inverters, Converters, Controllers and Interconnection System Equipment for Use with Distributed Energy Resources, UL 1741:2010 Ed.2+R:15Feb2018; CSA C22.2#107.1:2016 Ed.4.

  • Page 4: Safety Precautions

    MNPV4BY3 MANUAL SAFETY PRECAUTIONS • The MNPV4BY3 PV Combiner is listed as a Type 3 enclosure, designed for outdoor installation. Mount the PV Combiner vertically or up to a 10-degree angle. • System grounding is the responsibility of the system installer and must comply with local and national electrical codes and standards.
  • Page 5 ▪ Add distilled water as needed. Do NOT fill to the bottom of the funnel neck before you equalize. The electrolyte will probably spill out. ▪ Use the MidNite Solar’s MNHYDROMETER to measure the specific gravity. Check with your battery manufacturer for the specific gravity values.

  • Page 6: Wiring Requirements

    MNPV4BY3 MANUAL HOW TO KILL YOUR BATTERIES Batteries are delicate and require proper attention, especially when off-grid. Think of your batteries and solar equipment as a small nuclear power plant, hydro dam, or natural gas-fired power plant. Just like any of those, your system needs DAILY attention to ensure it is performing correctly and safely.
  • Page 7 (breakers opened, fuses removed) before proceeding—to prevent accidental shock. INSTALLING THE MNPV4BY3 PV Combiners are normally installed at the PV array to reduce the number of PV wires to only the primary PV+/PV- inputs. The PV Combiner can be mounted in the vertical position or slanted backwards up to 10 degrees to accommodate a 3/12 roof pitch.

  • Page 8: Conduit Knockouts

    If installed inside the dwelling by the solar equipment, then the National Electrical Code (NEC) requires 30” clear on the wall. The MNPV4BY3 may be located anywhere within this 30”. The NEC also requires 36” free and clear of obstructions in front of the combiner. The 36” clear area in front of electrical panels is to provide a space to fall back into in case of electrical shock.
  • Page 9 MNPV4BY3 MANUAL Figure 1 Insert Ground Wires (Figure 1) • PV module frames must be grounded. Bond the modules together with bonding straps or use module mounting hardware that pierces the frames. • Insert PV array ground wire into PV Combiner ground busbar, (#4).
  • Page 10 • If all voltages check good, the inverter may be energized. CAUTION! CAUTION! MNPV4BY3 MAX FUSE RATING – 30A Use 1000VDC multimeter or damage may occur. Important! Re-torque all connections after one hour. Do NOT skip this step. You may be...
  • Page 11 MNPV4BY3 MANUAL Check Live Circuit Before Removing PV Combiner Deadfront (Figure 3) The MNPV4BY3 deadfront offers test points to check for active voltages BEFORE removing the deadfront for servicing inside the PV Combiner. • Open PV DC disconnect or turn OFF inverter.
  • Page 12 MNPV4BY3 MANUAL NOTE The MNPV4BY3 PV Combiner is to be connected to a 1000VDC PV array and (up to 3) 50,000W Solar Edge inverters. 12| P a g e 1 0 - 5 5 5 - 1 R E V : C...
  • Page 13 MNPV4BY3 MANUAL 13| P a g e 1 0 - 5 5 5 - 1 R E V : C...
  • Page 14 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 15: Notice Of Copyright

    MidNite Solar's MNPV4BY3 PV Combiner User’s Manual. Copyright ⓒ 2024 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.

Table of Contents