IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions for the Clarity™ System, and should be followed during
the installation and maintenance of the system.Please read thoroughly before attempting
installation.
Danger
To reduce risk of electrical shock, do not open a Monitor, Optimizer,
Gateway, Disable Switch, or Site Server. Do not attempt repair. There
are no user-serviceable parts inside.
Danger
When unloaded, Monitors, Optimizers, and their attached PV panels still
present a shock risk. Note that the Monitor or Optimizer output voltage
will be as high as the PV panel’s open circuit voltage (Voc), and any
electrical terminal on a monitor may be as high as 1000V with respect to
ground, depending on site design and wiring connections
Warning
Do not connect or disconnect a Monitor or Optimizer while under
electrical load: DC power and AC power must be disconnected from the
PV system inverter before installing or servicing Monitors.
Warning To ensure safety, all combiner box fuses must be opened prior to
altering any Monitor or Optimizer electrical connections.
Warning
Under extreme environmental conditions, a photovoltaic panel may
produce higher short-circuit currents and/or higher open-circuit voltages
than specified by the panel’s nameplate Standard Test Condition (STC)
rating. Accordingly, these higher values of Isc and Voc should be
utilized when determining compatibility with the Monitor or Optimizer
maximum current and maximum voltage specifications.
Warning
String fuses must be present elsewhere in the system. Clarity™
Monitors and Optimizers do not include string fuses, or any form of over-
current protection
Warning
The Clarity system does not provide any protection from ground faults or
arc faults. Where required, protection from ground faults and arc faults
must be provided elsewhere in the system.
Caution
Monitors, Optimizers, Gateways, Disable Switches, and Site Servers are
designed to be installed outdoors. However, electrical connections to
these products should be made and altered only under dry weather
conditions. Every effort should be made to avoid getting dirt and
moisture into electrical connections before they are mated and properly
sealed. Moisture in electrical connections can present a shock hazard,
and can also accelerate corrosion.
Warning
This equipment operates over the marked Voltage and Frequency range
without requiring manual setting of any selector switches. Different types
of line cord sets may be used for connections to the mains supply circuit
and should comply with the electrical code requirements of the country
of use. The line cord provided with the equipment is acceptable for use
with NEMA Style 5-15R AC receptacles supplying nominal 120 Volts.
