SA-15K Install Guide and Owner Manual

August 19

, 2022 21

Connecting Solar Panels

A. Sol-Ark has TRIPLE MPPTs for three separate PV input pairs

B. MAX PV input = 19.5kW (± 5%) / system | 6.5kW / MPPT | MAX 500V

PV | MAX I

/MPPT 26A (limiting to 26A)

Damage will occur if PV V

> 550V

C. Parallel strings per MPPT must be the same Voltage

i. PV1 A/B must be the same voltage if using both strings

ii. Panels on the same MPPT CAN face different directions

D. Ground the panel MOUNTS/FRAMES to any ground in the Home via 12AWG wire

E. IF using Y-Connectors: Running two strings in parallel, totaling 26A (self-limiting)

F. Connect the solar panel strings as indicated by the following diagram:

Only one temperature sensor

can be used per install

(Connected to Master Inverter)

Check Battery Integration Guide for specific

instructions on Closed Loop Comm

Integration: www.sol-ark.com/support/

Each string can use separate

wires

String minimum is usually 5

panels or 125V

Maximum combined

Output (AC+DC) =

34.2kW

19.2kW AC +

15kW DC

Multi-Terminal Multi Lead Acid Install

Multi-Terminal Multi Lithium Install

Optional Battery Installation Method: Multi-Terminal Installation

The battery terminals parallel batteries to ensure a common connection. If 275A charge/discharge rate is needed,

connect batteries to both terminals; If using 3 or more batteries, use a busbar for + and - battery connections.

Only connect batteries of the same brand, model, and chemistry to both terminals. if Lead Acid, approx. age also.

Multi-Terminal Single Battery Install

You will only need to do a multi-terminal

single battery install if your single battery

has a max charge/discharge current >160A.