Hoymiles MI-1000 Installation guide

Hoymiles Microinverter System
Installation Training
Presented by: Wojciech Kwasniak
E-mail: [email protected]

Prepare for the installation of microinverter system
The process of microinverter system installation
Installation Pictures
Premise

MI-1000/1200 MI-500/600/700 MI-250/300
Popular Products

Panel
Rail
Microinverter
Data Transfer
Unit / DTU
AC Female
Connector
AC End Cap
AC End Cable
Distribution Box
Equipments

Multi-function wrench Hexagon Double-headed
wrench(13-15)
Adjustable wrench Screwdriver Multimeter
Required Tools for Installation

Microinverter Installation steps

a. Mark the approximate center of each panel on the frame.
b. Install the microinverter shown as below. The silver cover side should be up
Silver cover side up.
1 Install Microinverter

a. Install an AC junction box at the suitable location on the racking.
b. Provide an AC connection from the AC junction box back to the electricity network
connection using equipment and practices as required by local jurisdictions.
2 Install AC Junction Box

a. Plug the AC connector of the first microinverter into the connector of the next
microinverter, and so forth, to form a continuous AC branch circuit
a. Install the AC End Cap on the open AC connector of the last microinverter in the AC
branch circuit
3 Connect AC Cables of Microinverter

a. Connect the AC End Cable connector to the adjacent microinverter connector.
b. Connect AC End Cable to the junction box and wire with the cable to the electricity
network. Close the junction box after the wiring is complete.
Note: Brown Wire: L
Blue Wire: N
Yellow/Green Wire: Ground
4 Connect AC End Cable

a. Peel the removable serial number label from each microinverter. The position of the
label is shown as below.
Note: the DC inputs of MI-500 are identified by A and B. The left input is A and the
right one is B, shown as above.
5 Create an Installation Map

b. Affix the serial number label to the respective location on the installation map.
Note: the serial number label of MI-500 should be affixed between two blanks and
mark A and B to identify the two connected PV panels.

a. Mount the PV modules above the microinverters
b. Connect the DC cables of the modules to the DC input side of the microinverter.
6 Connect PV Modules

c. Check the LED on the side of the microinverter. The LED flashes six times at start up.
All green flashes indicate normal start up.

a. If applicable, turn on the AC disconnect or circuit breaker for the branch circuit.
b. Turn on the main utility-grid AC circuit breaker. Your system will start producing
power after about two-minute wait time.
7 Energize the System

•Refer to the DTU User Manual or the DTU Quick Install Guide to install the DTU and
set up system monitoring.
8 System Monitoring Set Up

1. In principle, the distribution box shall be close to
the meter of the user. The installation position shall
be safe, firm and easy to operate. (If local power
sector has requirements, do as they requested)；
2. The distribution box should be installed in the
place to avoid rain and exposure, the minimum
height can not be less than 1600mm.
Distribution box installation

DTU-MI-GPRS DTU Setting Platform
DTU-GPRS-MI can connect 99 pieces microinverters' ID；
Grounding Pile

1. Installation environment
(1) Dry non-corrosive liquids and heat objects;
(2) With 220V power supply;
(3) LAN network support (GPRS Internet card
provides network version except).
2. Installation location
(1) Installed in the router near the LAN network
connection (GPRS Internet card provides
network version except);
(2) Installed in the loft at the top of the house;
(3) Installed near the microinverter position.
DTU installation

Confirm whether the installation is successful
(1) The network power, confirm LCD NC / LC change to YC. YC said that the server has
been connected successfully.
DTU Internet Connection Status