Safety Symbols; General Safety - enphase M250 Quick Install Manual

PV Rapid Shutdown Equipment
(PVRSE)
This product is UL Listed as PV Rapid Shut Down
Equipment and conforms with NEC-2014 and NEC-2017
section 690.12 and C22.1-2015 Rule 64-218 Rapid
Shutdown of PV Systems, for AC and DC conductors,
when installed according to the following requirements:
• Microinverters and all DC connections must be
installed inside the array boundary. Enphase further
requires that the microinverters and DC connections
be installed under the PV module to avoid direct
exposure to rain, UV, and other harmful weather
events.
• The array boundary is defined as 305 mm (1 ft.) from
the array in all directions, or 1 m (3 ft.) form the point
of entry inside a building.
This rapid shutdown system must be provided with an
initiating device and (or with) status indicator which
must be installed in a location accessible to first
responders, or be connected to an automatic system
which initiates rapid shutdown upon the activation of
a system disconnect or activation of another type of
emergency system.
The initiator shall be listed and identified as a
disconnecting means that plainly indicates whether it is
in the "off" or "on" position. Examples are:
• Service disconnecting means
• PV system disconnecting means
• Readily accessible switch or circuit breaker
The handle position of a switch or circuit breaker is
suitable for use as an indicator. Refer to NEC or CSA
C22.1-2015 for more information.
Additionally, in a prominent location near the initiator
device, a placard or label must be provided with a
permanent marking including the following wording:
'PHOTOVOLTAIC SYSTEM EQUIPPED WITH RAPID
SHUTDOWN' The term 'PHOTOVOLTAIC' may be
replaced with 'PV.'
The placard, label, or directory shall be reflective, with all
letters capitalized and having a minimum height of 9.5
mm (3/8 in.) in white on red background.
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
SAVE THIS INFORMATION.
tains important instructions to follow during installation
of the Enphase IQ 7 and IQ 7+ Microinverter.
WARNING: Hot surface.
WARNING: Refer to safety instructions.
DANGER: Risk of electric shock.
Refer to manual
Double-Insulated

Safety Symbols

DANGER: Indicates a hazardous situation, which
+
if not avoided, will result in death or serious
injury.
WARNING: Indicates a situation where failure
*
to follow instructions may be a safety hazard
or cause equipment malfunction. Use extreme
caution and follow instructions carefully.
WARNING: Indicates a situation where failure to
;
follow instructions may result in burn injury.
✓
NOTE: Indicates information particularly
important for optimal system operation.

General Safety

DANGER: Risk of electric shock. 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.
DANGER: Risk of electric shock. Be aware that
+
installation of this equipment includes risk of
electric shock.
DANGER: Risk of electric shock. The DC conduc-
+
tors of this photovoltaic system are ungrounded
and may be energized.
DANGER: Risk of electric shock. Always de-en-
+
ergize the AC branch circuit before servicing.
Never disconnect the DC connectors under load.
Enphase Customer Support: enphase.com/en-us/support/contact
General Safety, continued
DANGER: Risk of electric shock. Risk of fire.
+
Only use electrical system components
approved for wet locations.
DANGER: Risk of electric shock. Risk of fire.
+
Only qualified personnel should troubleshoot,
install, or replace Enphase Microinverters or the
Enphase Q Cable and Accessories.
DANGER: Risk of electric shock. Risk of fire.
+
Ensure that all AC and DC wiring is correct and
that none of the AC or DC wires are pinched or
damaged. Ensure that all AC junction boxes are
properly closed.
DANGER: Risk of electric shock. Risk of fire. Do
+
not exceed the maximum number of microin-
verters in an AC branch circuit as listed in this
guide. You must protect each microinverter AC
branch circuit with a 20A maximum breaker or
fuse, as appropriate.
DANGER: Risk of electric shock. Risk of fire.
+
Only qualified personnel may connect the
Enphase Microinverter to the utility grid.
WARNING: Risk of equipment damage. Enphase
*
male and female connectors must only be mated
with the matching male/female connector.
WARNING: Before installing or using the
*
Enphase Microinverter, read all instructions and
cautionary markings in the technical description,
on the Enphase Microinverter System, and on
the photovoltaic (PV) equipment.
WARNING: Do not connect Enphase Microin-
*
verters to the grid or energize the AC circuit(s)
until you have completed all of the installation
procedures and have received prior approval
from the electrical utility company.
WARNING: When the PV array is exposed to
*
light, DC voltage is supplied to the PCE.
✓ NOTE: To ensure optimal reliability and to meet
warranty requirements, install the Enphase
Microinverters and Enphase Q Cable according
to the instructions in this guide.
✓ NOTE: Provide support for the Enphase Q Cable
at least every 1.8 m (6 feet).
This guide con-
✓
NOTE: Perform all electrical installations in
accordance with all applicable local electrical
codes, such as the Canadian Electrical Code,
Part 1 and NFPA 70 (NEC).
✓
NOTE: The AC and DC connectors on the
cabling are rated as a disconnect only when
used with an Enphase Microinverter.
✓ NOTE: Protection against lightning and resulting
voltage surge must be in accordance with local
standards.
Microinverter Safety
DANGER: Risk of electric shock. Risk of fire. Do
+
not attempt to repair the Enphase Microinverter;
it contains no user-serviceable parts. If it fails,
contact Enphase customer service to obtain
an RMA (return merchandise authorization)
number and start the replacement process.
Tampering with or opening the Enphase
Microinverter will void the warranty.
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.
WARNING: You must match the DC operating
*
voltage range of the PV module with the
allowable input voltage range of the Enphase
Microinverter.
WARNING: The maximum open circuit voltage
*
of the PV module must not exceed the specified
maximum input DC voltage of the Enphase
Microinverter.
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 con-
nectors (on the Enphase Q Cable connection,
PV module, or the microinverter) to rain or
condensation before mating the connectors.
Microinverter Safety, continued
WARNING: Risk of equipment damage. 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. Unsup-
ported 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 is not guaranteed. These devices
may also damage the Enphase Microinverter by
exceeding its electrical rating, making the system
potentially unsafe.
; 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.
✓
NOTE: Many Enphase Microinverter models have
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.
Enphase Q Cable Safety
DANGER: Risk of electric shock. Do not install
+
the Enphase Q Cable terminator while power is
connected.
DANGER: Risk of electric shock. Risk of fire.
+
When stripping the sheath from the Enphase
Q Cable, make sure the conductors are not
damaged. If the exposed wires are damaged,
the system may not function properly.
DANGER: Risk of electric shock. Risk of fire. Do
+
not leave AC connectors on the Enphase Q Cable
uncovered for an extended period. You must
cover any unused connector with a sealing cap.
DANGER: Risk of electric shock. Risk of fire. Make
+
sure protective sealing caps have been installed on
all unused AC connectors. Unused AC connectors
are live when the system is energized.
WARNING: Use the terminator only once. If you
*
open the terminator following installation, the
latching mechanism is destroyed. Do not reuse the
terminator. If the latching mechanism is defective,
do not use the terminator. Do not circumvent or
manipulate the latching mechanism.
WARNING: When installing the Enphase Q
*
Cable, secure any loose cable to minimize
tripping hazard
✓
NOTE: When looping the Enphase Q Cable,
do not form loops smaller than 12 cm (4.75
inches) in diameter.
✓ NOTE: If you need to remove a sealing cap, you
must use the Enphase disconnect tool.
✓ NOTE: When installing the Enphase Q Cable and
accessories, adhere to the following:
• Do not expose the terminator or cable
connections to directed, pressurized liquid
(water jets, etc.).
• Do not expose the terminator or cable
connections to continuous immersion.
• Do not expose the terminator or cable connec-
tions to continuous tension (e.g., tension
due to pulling or bending the cable near the
connection).
• Use only the connectors and cables provided.
• Do not allow contamination or debris in the
connectors.
• Use the terminator and cable connections only
when all parts are present and intact.
• Do not install or use in potentially explosive
environments.
• Do not allow the terminator to come into
contact with open flame.
• Fit the terminator using only the prescribed tools
and in the prescribed manner.
• Use the terminator to seal the conductor end
of the Enphase Q Cable; no other method is
allowed.