MIDNITE SOLAR MN 15-12KW-AIO All In One Inverter Charger System Installation Guide

MIDNITE SOLAR MN 15-12KW-AIO All In One Inverter Charger System

Specifications

• Dimensions: 16.54″ x 37.40″ x 17.32″
• Weight : 101.85 lb (46.2 Kg)
• Torque: 20 in-lb to 126 in-lb
• Wire Gauge Guide: Follow local electrical code
• Battery Cables: 4/0 AWG THHN

Product Usage Instructions

Packing List
Check that all components listed in the guide are present in the package. Contact support if any parts are missing or damaged.

General Description
The MN 15-12KW-AIO is an all-in-one inverter/charger system featuring various components for power management.

Installation

1. MountingThe system weighs 101.85 lb (46.2 Kg). Ensure there is at least 6 inches (15 cm) of vertical clearance for proper heat dissipation.
2. WiringFollow the wire gauge guide and connect components according to the provided diagram.
3. GroundingWrap the ground cable of the grid around the toroid twice for proper grounding.

Usage
Refer to the LCD screen for system status and use the ON/OFF button for operation control.

FAQ

Q: What do I do if a component is missing from the packing list?
A: Contact support immediately at (360)-403-7207 for assistance with missing or damaged parts.

Packing List

The box should include all items shown in the component guide. If there is damage or missing parts, immediately call the phone number (USA) (360)-403-7207.

φ49mm: 6

J| Toroid（φ53mm(Battery) & φ30mm(Ground of Grid))| 2
K| Gutter Template| 1

General Description

E

| 120/240VAC Smart load brkrs 60+30+50A OR 60A Gen input+ 30A Smart Load+50A AC coupling –Use each dual breaker as a load or

input and program accordingly

F| 100A 120/240VAC AC OUT
G| 100A 120/240VAC AC IN
H| ON/OFF Button
I| LCD screen
J| Wi-Fi / Ethernet dongle
---|---
K| 5/16-18UNC Battery connection terminals
L| PV connection terminal block
M| NEUTRAL Busbar

N

| Communication connection ports

(RS485, BMS, DRM, CT, DRY, RSD, PARA)

O| GROUND Busbar

Specifications

Nm (7/16-20 UNF) / 2.9 Nm (1/4-28 UNF)
AC Input Grid| 35 in-lb| 4 Nm
Battery Connection| 126 in-lb| 15 Nm

Wire Gauge Guide

1. AC Input/Outputs:

   • “AC INPUT GRID” Terminal 100A MAX passthrough, 2 AWG conductor.
   • “AC OUTPUT” Terminal 100A MAX passthrough, 2 AWG conductor.
   • Backed up Sub-panel may have more than 100 amps of load circuits although the utility pass through current is limited to 100 amps continuous per leg. Inverter output current when inverting is limited to 47.5 amps continuous per leg
     Wire gauge should be selected in compliance with your local electrical code

2. SENSORS CT: 16.40 ft [5 m] included.

3. BATTERY CABLES: 4/0 AWG THHN / Max Charge and Discharge limited to 260A

Ground Toroid (φ30mm)
The ground cable of the Grid needs to be wrapped around the toroid twice, as shown below.

Installation

Mounting the MN MN 15-12KW-AIO

• The system weight is 101.85 lb.(46.2 Kg).

• Considering the dimensions of the inverter, find a suitable location for the system(s). There must be at least 6 in [15 cm] of vertical clearance for proper heat dissipation.
  Heat transfer and cooling is done from bottom to top at a rate of 525W/hr

• The MIDNITE MN MN 15-12KW-AIO is a NEMA 3R – IP65 enclosure that is rated for outdoor installation but can also be installed indoors.

• PROTECT THE LCD SCREEN from direct exposure to UV light.

• Mount the MIDNITE and ensure the unit is level and properly seated.

• Securely attach the inverter to the mounting surface. You may need expansion plugs or anchors for concrete. In case a different anchorage is required, calculate the support needed to properly hold the weight of the equipment.

• Remove the sticker on the bottom of the equipment before mounting. Use gutter template to mark the installation location on the wire guard.

• Knockout holes use bushing rings as needed.

• Mount the inverter in the optimal orientation as shown below.

Connecting PV Modules

The inverter has 3 independent MPPTs and each can handle up to 2 PV strings. Each MPPT can operate at a current of 30A/22A/22A (self-limiting) and a MAX Voc of 600V.

Integrating Batteries

Battery Toroid
Install the battery toroid(provided) on battery input wires, as shown in the following figure. Battery (+) and (-) cables must go through the toroid simultaneously. These toroids are for EMI suppression.

BMS Port (CAN/RS485, Only for Lithium Battery)

• BTS: Battery temperature sensor, not polarity sensitive. Used for voltage compensation for Lead Acid batteries. The standard MidNite MNBTS.
• RSD: Normally open dry contact for EPO (emergency power off). The built in transmitter is Sunspec compatible. MidNite Solar manufacturers String level Sunspec receivers that work with this inverter.
• DRY: Generator control, Remote off control, DI/DO control.
  • (1,2): Normally open relay for generator two-wire start.
  • (3,4,5,6): DI/DO control. (Digital input/output) Programmable through your App.
  • (7): Remote off control.
  • (8,+9): Temperature sensor terminal of lead-acid battery.
• CT/METER: CT/Meter communication or Grid current sense.
• BMS: Lithium battery communication interface.
• PARA: Parallel communication. A matched resistance switch for parallel communication.
• RS485: RS485 communication.

This manual ONLY illustrates the pinout sequence of BMS at INVERTER SIDE. For details about the pinout sequence at battery side, see the user manual of the battery you use.

Wi-Fi / Ethernet Antenna (Dongle)

The appearance of actual modules may be slightly different. The figures shown here are only for illustration. For details, please refer to the corresponding Module Installation Guide in the packing.

Limit Sensors (CT/Meter)

CT Sensors for Stand-alone application 120V/240V Split phase

Each inverter will include two CT.

CT+Meter for Parallel Systems 120V/240V Split phase

•  CT+meter sensors are essential for stacking is highly recommended for multi-system installs.
• Please contact sales at 360-403-7207 to purchase the meter and bigger CT.

CT+Meter for Parallel Systems 120V/208V Three-Phase

• The three-phase system requires three CTs and 1 meter.
• Please contact sales at 360-403-7207 to purchase the meter and bigger CT.

Parallel Communication

It is necessary to turn the matched resistance switch of No. 1 inverter and No. N inverter to “ON” in parallel connection mode.

Power ON MIDNITE MN MN 15-12KW-AIO

• Power on the PV.
• Power on the battery from the battery breaker and any external battery switches or breakers.
• Power on the AC IN GRID breaker.
• Connect the cell phone App via Bluetooth. And click the Power ON in the App for the first time. Or you can hold the ON/OFF button on the side of the inverter for 5s in this step when performing subsequent startup. Cell phone app instructions are on the side of the inverter & on the quick start guide.
• Power on the AC OUT breaker.
• Power on the SMART LOAD breakers
• Please wait 5 minutes for the inverter to start as it makes systems checks.
• When changing modes or changing smart load settings, you must put the inverter in standby and wait 5 minutes to restart.
• If an error is identified, you must clear the error to recover and wait 5 minutes to restart.

Power Off Sequence

• Power off the AC OUT breaker.
• Power off the SMART LOAD breakers
• Connect the cell phone App via Bluetooth. And click the Power OFF on the App. Or you can hold the ON/OFF button on the side of the inverter for 5 seconds in this step when performing subsequent shutdown
• Power off the AC IN GRID breaker.
• Power off the battery from the battery breaker and any external battery switches or breakers.
• Power off the PV.
• To disconnect the inverter cables, please wait at least 5 minutes before touching them.

App Setting Guide

Download App for Local Setting

• Scan the QR code to download the App MidNite Pro.
• Download the APP from the App Store or Google Play

Access Permission
Before using the local setting, the APP should access some permissions. (You can allow them when you install the APP or grant permissions in your own phone setting.) When the APP asks for permission, please click Allow.

Connect Inverter
Firstly, open the bluetooth and the APP on your phone. Then connect the inverter.

Installer login

Select the installer role to log in.

Stored energy

• Set the work mode.
• If the user want to sell back, please disable the Zero Export button.
• Set the related battery parameters.

Work Mode: Self Consumption

Work Mode: Grid Feed in priority(Sell to grid)

Work Mode: Off Grid

Communication

Connect to the router.

Grid
Set the grid parameters.

Power control
Set the power control parameters .

Equipment maintenance

Wiring Diagrams

These wiring diagrams are examples for common inverter installation. Diagrams must meet local electrical code and authorized jurisdiction requirements.

MIDNITE MN 15-12KW-AIO
Standard Wiring Diagram 1

TABLE 1
BREAKER SPECIFICATION

requirements.

TABLE 2
WIRE GAUGE GUIDE (COPPER)

MIDNITE MN 15-12KW-AIO
Standard Wiring Diagram – 2<N≤5 Parallel Inverters | 120/240V

Diagram 2

TABLE 1
BREAKER SPECIFICATION

requirements.

TABLE 2
WIRE GAUGE GUIDE (COPPER)

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