[{"id":"9a1ee48c5b0f4149","type":"comment","z":"8c57a18efff4873d","name":"Explanation","info":"# Principle of operation\n\nBecause the hot water cylinder consumes \n3.7 kW, you know that that the HWC must \nbe full if (relay switch == ON) \nAND (house consuming < 3.7 kW).\n\n# How these scripts work\n\nTHe above principle is used to set either\nFull or Unfull status at 5 pm.  If Unfull \nthe HWC charging procedure will happen.\nThe node \"Set Required On Hours\" is \nthen used todecide how long to \"Boost\" \nthe HWC.\n\nCharging happens at night when the power\nis less expensive.\n\n","x":150,"y":60,"wires":[]}]