15KW 220V Swimming Pool Thermostat SPA Hot Tub Electric Bath Water Heater

The 15KW thermostat is suitable for a pool of? Operation sequence: first turn on the water pump, then turn on the thermostat; Shutdown is to first turn off the thermostat, wait for a while (10 seconds to 1 minute depending on the power of the thermostat) and then turn off the water pump.