System information

Enecsys Installation and Operation Manual – Version 1.6 –June 6 2012
10
2 Installation Sequence
2.1 Customer site inspection
CAUTION: All work carried out at a customer site must follow the health and
safety instructions for working at height for the country in which the system is
installed. (For example, in the UK, this is laid down in the Work at Height
Regulations 2005. In the US, there are OSHA standards for Fall Protection.)
2.1.1 Installation assumptions
• The PV system has been at least partially planned at the point when micro
inverters are being considered. The number of PV panels will determine the
number of micro inverters needed. The voltage characteristics of the modules
chosen will determine the Enecsys micro inverter to use. The PV panel
characteristics should match the micro inverter model chosen, and the PV panel
layout should be finalized.
• Approximate yearly energy yield is calculated when the micro inverters will be set
up on the Enecsys monitoring system. This figure must be entered when the
monitoring is set up.
• Installation plan has taken inverter positioning and cabling configuration into
account.
• Permits and certifications must be in place before installation.
• Racking systems vary by PV installation. The installer should use a method of
mounting the micro inverters that works with the racking system. Installers must
supply their own mounting hardware.
2.1.2 Site requirements for Enecsys micro inverters and monitoring system
• The customer must have a broadband Internet connection.
• There must be an unused Ethernet port on the customer’s router to connect to the
Enecsys gateway so the gateway can communicate with the online monitoring
system. The information provided by the Enecsys gateway is used to troubleshoot
the installation as it progresses.
• If the roof is made of metal or lined with metal foil, it may be necessary to install a
double repeater right below it, in a loft or attic, for example. The double repeater
connects to a remote antenna that is installed on the roof above the metal surface,
where it can communicate with the micro inverters and the Enecsys gateway.
• If a repeater or double repeater is necessary, there must be power outlets in the
required locations.
2.2 Install the Enecsys gateway
At the earliest possible stage during the onsite installation, the installer should connect the
Enecsys gateway to the customer’s router using the Ethernet cable provided. When the
gateway is powered up, it will be ready to start monitoring the micro inverters as soon as they
are connected to the PV panels on an individual basis. (See
“3 Installing the Gateway”.)