Enphase IQ8 Install and Operation Manual

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation
6 © 2022 Enphase Energy Inc. All rights reserved. Aug 2022
WARNINGS:
Before installing or using the Enphase Microinverter, read all instructions and
cautionary markings in the technical description, on the Enphase equipment and on the
photovoltaic (PV) equipment.
Do not connect Enphase Microinverters to the grid or energize the AC circuit(s) until
you have completed all of the installation procedures and have received approval from
the electrical utility.
When the PV array is exposed to light, DC voltage is supplied to the power conversion
equipment (PCE).
Risk of equipment damage. Enphase male and female connectors must only be mated
with the identical type and brand of male/female connector.
NOTES:
To ensure optimal reliability and to meet warranty requirements, install the Enphase
equipment according to the instructions in this manual.
DANGER: Risk of electric shock. Always de-energize the AC branch circuit before
servicing. Never disconnect the DC or AC connectors under load
Protection against lightning and resulting voltage surge must be in accordance with
local standards.
Perform all electrical installations in accordance with all applicable local electrical
codes, such as: the Canadian Electrical Code, Part 1; ANSI requirements; and NPFA
70 (NEC).
Microinverter Safety
WARNING: Risk
of skin burn
The chassis of the Enphase Microinverter is the heat sink. Under normal operating
conditions, the temperature could be 20° C above ambient, but under extreme
conditions the microinverter can reach a temperature of 90° C. To reduce risk of burns,
use caution when working with microinverters.
DANGER: Risk of
fire.
The DC conductors of the PV module must be labeled “PV Wire” or “PV Cable” when
paired with the Enphase Microinverter.
DANGER: Risk of
electric shock.
Risk of fire
Only qualified personnel may connect the Enphase Microinverter to the utility grid.
Do not attempt to repair the Enphase Microinverter; it contains no user-serviceable
parts. If it fails, contact Enphase customer service to obtain a return merchandise
authorization (RMA) number and start the replacement process. Tampering with or
opening the Enphase Microinverter will void the warranty.
WARNING: Risk
of equipment
damage
Install the microinverter under the PV module to avoid direct exposure to rain, UV, and
other harmful weather events. Always install the microinverter bracket side up. Do not
mount the microinverter upside down. Do not expose the AC or DC connectors (on the
Enphase IQ Cable, PV module, or the microinverter) to rain or condensation before the
connectors are mated.
The maximum open circuit voltage of the PV module must not exceed the specified
maximum input DC voltage of the Enphase Microinverter. Refer to the Enphase
Compatibility Calculator at: https://enphase.com/en-us/support/module-compatibility to
verify PV module electrical compatibility with microinverter. Use IQ8 Series
microinverters only with compatible PV modules as per Enphase compatibility calculator.
Using electrically incompatible PV module voids Enphase warranty
WARNING: Risk
of equipment
damage
You must match the DC operating voltage range of the PV module with the allowable
input voltage range of the Enphase Microinverter.
The Enphase Microinverter is not protected from damage due to moisture trapped in
cabling systems. Never mate microinverters to cables that have been left disconnected
and exposed to wet conditions. This voids the Enphase warranty.
WARNING: Risk
of equipment
damage
The Enphase Microinverter functions only with a standard, compatible PV module with
appropriate fill-factor, voltage, and current ratings. Unsupported devices include smart
PV modules, fuel cells, wind or water turbines, DC generators, and non-Enphase
batteries, etc. These devices do not behave like standard PV modules, so operation and
compliance are not guaranteed. These devices may also damage the Enphase
Microinverter by exceeding its electrical rating, making the system potentially unsafe.
NOTES:
The Enphase Microinverter has adjustable voltage and frequency trip points that may
need to be set, depending upon local requirements. Contact Enphase customer service
for required modifications as per local requirements