Growatt GroBoost Quick Installation Manual page 14

The following figure is the overall detailed wiring diagram:
Load situation one: A single-phase resistive load, such as the immersion
heater for water heater.
⚫ Single-phase power input, a single-phase L1 adjustable power
output mode, with a PT1000 temperature sensor.
Relay OUT1, and L2/L3 phase power output,
Three-phase load is linked with the PT1000 of
the T2 terminal.
Table 3-1
12