User's Manual

Microinverter user manual
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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 it must 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.
2. INTRODUCTION
Hoymiles microinverter system is shown in the figure below. The whole system
consists of two parts, PV grid-connected power generation unit and PV
monitoring unit. PV grid-connected power generation units include PV modules,
microinverters, AC wiring harnesses and other system accessories; monitoring
units include DTU (data collector), remote monitoring server and other
accessories. Microinverter is the core product of PV grid-connected power