Above is suitable for GALLON 3-3 10k, 15k, 20K,30K standard modle, for long backup modle, the difference is the
OP relay boards assembling, the following picture is for reference when assembling OP relay boards to the long
backup unit:
The Location Of OP Relay Board For Long Backup Unit
3. Wiring Connection for Parallel Operation
Please follow the below steps to connect cables and wires for Gallon 3-3 parallel models.
Step 1:
Parallel cable and share current cable connection:
It is better to connect the “Share current cable” first, then connect the “parallel cable”. It’s all dummy-proof
design which can prevent customers from mis-connection. However, any stress to cables will cause bad
contact or broken inner wires. Please be aware of that.