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DANGER: Risk of
electric shock.
WARNINGS:
NOTES:
Microinverter Safety
WARNING: Risk of
skin burn.
DANGER: Risk of
fire.
DANGER: Risk of
electric shock. Risk
of fire.
WARNING: Risk of
equipment damage
WARNING: Risk of
equipment damage
NOTES:
6
Do not use Enphase equipment in a manner not specified by the manufacturer. Doing so may cause
death or injury to persons, or damage to equipment.
Be aware that installation of this equipment includes risk of electric shock.
The DC conductors of this photovoltaic system are ungrounded and may be energized.
Always de-energize the AC branch circuit before servicing. While connectors are rated for
disconnect under load, Enphase does not recommend disconnecting the DC connectors under load.
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
matching male/female connector.
To ensure optimal reliability and to meet warranty requirements, install the Enphase equipment
according to the instructions in this manual.
The AC and DC connectors on the cabling are rated as a disconnect only when used with an
Enphase Microinverter.
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).
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.
The DC conductors of the PV module must be labeled "PV Wire" or "PV Cable" when paired with
the Enphase Microinverter.
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.
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 Q 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.
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.
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.
The Enphase Microinverter has field-adjustable voltage and frequency trip points that may need to
be set, depending upon local requirements. Only an authorized installer with the permission and
following requirements of the local electrical authorities should make adjustments.
© 2018 Enphase Energy Inc. All rights reserved.
IQ 7 / IQ 7+ / IQ 7X Micro Installation and Operation
141-00043-02
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