sol-ark 12K - Parallel Systems; Parallel System Configuration and Operation

October 21
st
, 2021 43
Parallel Systems
Stacking Sol-Ark 12K @ 120V/240V Outputs
Parallel 12Ks
Continuous On &
Off Grid (kW)
Pass Through (kW)
Peak 10sec (KW)
1
9
12
16
2
18
24
32
3
27
36
48
4
36
48
64
5
45
60
80
6
54
72
96
7
63
84
112
8
72
96
128
Stacking Sol-Ark 12K @ 120V/208V Outputs (3phaase
Parallel 12Ks
Continuous On &
Off Grid (kW)
Pass Through (kW)
Peak 10sec (KW)
1*
9
12
16
2**
18
24
32
3
27
36
48
4
NA
NA
NA
5
NA
NA
NA
6
54
72
84
7
NA
NA
NA
8
NA
NA
NA
9
81
108
144
*Two phases only **Three phases but unbalanced (4.8kW, 6.2kW, 4.8kW)
MUST wire load outputs in parallel for systems to work correctly!
• Communication lines must be connected between parallel units, as shown in the wire diagrams section
o Preferred shielded CAT 6 cable for this purpose
• Program all units to "Parallel" in the "Basic Setup" screen under the "Parallel" tab
o Set one system to "Master" | Modbus SN: 1
o Set all others to "Slave" | Modbus SN: 2,3,4…
o Phases B/C for 120V/208V installations only
o Power up slaves first, then Master
▪ You will get an F46 error
(Parallel_Aux_fault) until both slaves and
Master are on
• Note: F01 Air Switch Faults are almost always an issue with communications, or one of the systems is off
• All parallel systems must connect to the same battery bank through their battery breakers
For units installed before June 1
st
, 2021:
Parallel Installs of 208V systems and installs of 6
or more parallel 240V systems require different
SW than comes with the Sol-Ark out of the box.
Please give us a call to get the SW you need.