Advertisement
Connect two series connected PV Modules to IQ8D
8
Microinverter
DANGER! Electric shock hazard. The DC conductors of
this PV system are ungrounded and may be energized.
A ) IQ8D Microinverter has Enphase EN4 bulkhead for DC connection
and bulkhead adapter cable for EN4 to MC4 connection. If your PV
modules have TE PV4S SOLARLOK connectors you may plug them
directly into the IQ8D Microinverter with EN4 bulkhead. Or use the
adapter cable for PV modules with MC4 connectors.
When using adapters make sure they are fully seated. Do not reverse
the adapter connections. Enphase IQ8D microinverter bulkhead and
adapter male, female DC connectors must only be mated with the
identical type and manufacturer brand of male/female connector.
B ) Connect positive and negative DC lead from each PV module to the IQ8D
Microinverter bulkhead DC connectors directly or using the adapter cables.
Complete the series connection of the other two DC leads
C ) Check the LED on the connector side of the microinverter. The LED
flashes six times when DC power is applied.
DC Connectors
Adapters
WARNING: If adapters are used, ensure they are installed
in the correct orientation.
PV Rapid Shutdown Equipment
(PVRSE)
This product is UL Listed as PV Rapid Shut Down
Equipment. IQ8D microinverter is evaluated under UL3741
and conforms with NEC-2017 and NEC-2020 section
690.12 (B)(2)(1) and CSA C22.1-2018 Rule 64-220 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.) from 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 that indicates whether it is in
the "off" or "on" position
The handle position of an AC disconnect switch or circuit
breaker can be used as an indicator based on regulations
Status LED
defined by Authority Having Jurisdiction (AHJ) in the
region. Refer to NEC 2017 or NEC 2020 or CSA C22.1-2018
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
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 IQ8D Microinverter.
WARNING: Hot surface.
WARNING: Refer to safety instructions.
DANGER: Risk of electric shock.
Refer to manual
Double-Insulated
Energize the System
9
A ) 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 a five-minute wait time.
C ) Check the LED on the connector side of the microinverter:
LED
Indicates
Flashing
Normal operation. AC grid function is normal and there is communi-
green
cation with the IQ8D Commercial Gateway.
Flashing
The AC grid is normal but there is no communication with the IQ8D
orange
Commercial Gateway.
Flashing red
The AC grid is either not present or not within specification.
Solid red
There is an active "DC Resistance Low, Power Off" condition. To
reset, refer to the Commercial PV Design Guide IQ8D Microinverter
System Section DC Resistance Low – Power Off Condition at:
http://www.enphase.com/support.
Rapid Red/
IQ8D Microinverter has detected a PV panel which is operating
Flashing
outside arc-safe region.
orange
ACTIVATE MONITORING AND CONTROLS
After you have installed the microinverters, follow the procedures in
the Enphase IQ8D Commercial Gateway Quick Install Guide to activate
system monitoring, set up grid management functions, and complete the
installation.
Connecting the IQ8D Commercial Gateway and detecting devices.
•
Connecting to Enphase Installer App, registering the system, and
•
building the virtual array.
NOTE: Installers may see numerous ACVOOR (AC voltage out of range)
events during commissioning of IQ8/IQ8D systems if the grid has higher
impedance or operating in a region with wide voltage/frequency regulation.
Enphase Connector Rating:
in the following table have a maximum current of 20 A, a maximum OCPD
of 20 A, and maximum ambient temperature of -40° to +79° C (-40° to
+174.2° F). Never disconnect the DC connectors under load.
Part Number
Model
840-00735
QD-12-10-150
840-00736
QD-12-20-135
840-00737
QD-12-42-63
860-00776
ECA-EN4-S22-12
860-00792
ECA-EN4-S22-10-12
860-00793
ECA-EN4-S22-18-12
860-00794
ECA-EN4-S22-27-12
Safety Symbols
+
*
;
✓
General Safety
+
This guide con-
+
+
Enphase connectors on the assemblies
Maximum Voltage
250 VAC
250 VAC
250 VAC
119 VDC
119 VDC
119 VDC
119 VDC
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.
DANGER: Risk of electric shock. Do not use Enphase
equipment in a manner not specified by the manufac-
turer. 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 conductors of
this photovoltaic system are ungrounded and may be
energized.
Advertisement
