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P a g e
1.0
Introduction
This quick guide does not replace the user manual. The user manual must be consulted and followed prior to
installation/commissioning and during maintenance of the Any-Grid PSW-H hybrid inverter.
The installation of this unit may only be undertaken by qualified personnel with appropriate
training. High voltages in and around the unit can cause serious injury or death. This unit must be installed in
accordance with rules and regulations at the site of installation.
2.0
Order of input source activation during commissioning
1.
AC Input source (if available)
2.
PV Input source
3.
Battery Input
4.
AC Output
3.0
Surge Protection:
DC PV Input
It is highly recommended to use a surge arrester, also named surge protective device (SPD) near the PV input
terminals of this unit. This is to prevent damage to the unit from lightning, thunderstorms, or other voltage surges on
the PV cables.
The max. DC operating voltage of the SPD must be between 450 and 480 Vdc for 230 Vac models (500 to 550 Vdc for
PSW-H-8KW-230/48V).
AC Input
It is highly recommended to use a surge arrester, also named surge protective device (SPD) near the AC input
terminals of this unit, if the AC input is used. This is to prevent damage to the unit from lightning, thunderstorms or
other voltage surges on the AC input conductors (for example coming from the public grid).
The max. AC operating voltage of the SPD must be between 275 and 300 Vac for 230 Vac models
Battery Connections
Choose a suitable battery fuse as outlined in the chapter
“Important Safety Information”
, section
“OVERCURRENT PROTECTION FOR BATTERY”
of the user manual.
Ensure the battery cables are sized according to the table below shown in the user manual. Inadequate battery
cables can cause excessive heat or fire during operation.
Ensure battery cables are of the same length to reduce the possibility of unequal voltage drop.
4.0
PSW-H units in parallel
Settings menu #28 (AC output mode) allows for the PSW-H inverter to be programmed to work as a single, stand-
alone unit, in parallel with other PSW-H units on single phase or in 3-phase configuration.
To avoid damage, this value can only be changed if the inverter is in Stand-By mode (AC output turned off). See
chapter
“
Installing Multiple Units in Parallel, Split Phase or 3-Phase Configuration
” of th
e user manual, for detailed
instructions regarding systems with multiple PSW-H units.
Failure to set this value correctly could result in irreparable damage to the inverters.
PV Input connection
Use the PV connection as described for individual units. Each unit must be connected to its own PV array and must
not have any electrical contact to any other units’ PV arrays.
Connecting a single PV array to multiple Any-Grids simultaneously will damage the Any-Grid units. If using PV, each
unit must be connected to its own individual PV array, not electrically shared with any other units.
