3. Installation
Follow the instructions in the manuals of each component for its correct installation.
When installing a single-phase ESS in a system with a three-phase connection to the utility grid, make sure you install the ESS on phase one, L1.
Temperature-compensated charging
Multi, MultiPlus, MultiGrid or Quattro
Connect the temperature sensor supplied with the device. In the case of installations with multiple units in parallel, and/or dual- or three-phase configurations, the temperature-sense wire can be connected to any unit in the system. For more information, see the Parallel and three phase VE.Bus systems.
The Multi will, of course, use the measured battery temperature for temperature-compensated charging. It will also do this when charging with power coming from a grid-tie PV Inverter …whether connected to mains, or - in case of a mains failure - with solar power coming from a grid-tie PV Inverter when that inverter is connected to the output.
Solar chargers
Solar chargers will automatically use the information from the Multi or Quattro for temperature-compensated charging as well. Both VE.Direct Solar chargers and VE.Can Solar chargers.
Voltage-sense wiring
Multi, MultiPlus, Multi Grid and Quattros: wire the voltage-sense according to the instructions in the manual.
VE.Direct solar chargers: there is no voltage-sense option: no voltage sense is used.
VE.Can solar chargers: connect a voltage-sense wire to one of the solar chargers in each 'sync' group.