This article is an excellent resource for understanding how heating elements and thermostats work.
Once energy is restored to leading terminals of higher temperature change, examination for line voltage on top heating element. Check out the rest of this step slowly and meticulously (and continuously if required) up until it makes good sense as it is the “why and exactly how” the thermostats collaborate. The key is to know exactly how both thermostats interact and work in different ways. The leading thermostat has 2 positions – it can change voltage to “one position or the various other”: (position 1) to the top element or (position 2) to the bottom thermostat. The bottom thermostat also has 2 positions but it is “on and off”, not one or the various other like the leading thermostat: (position 1) to the lesser element or (position 2) stop voltage from getting to the lower aspect or anywhere else for that matter.
In order for the elements to have voltage and heat the water, the temperature level of the water in the top of the container needs to be less than the temperature level setup of the top thermostat. Once the water in the leading component of the tank has reached the temperature level value identified by the top thermostat environment, the top thermostat (is taken into consideration “pleased”) switches over energy from the leading aspect to the lesser thermostat. If the temperature level of the water in the bottom part of the tank is greater compared to the lower thermostat’s setup, the lower thermostat stays “off” and voltage is stopped from reaching the lesser heating aspect.
If however, the temperature level of the water in the bottom part of the tank is less than the environment of the reduced thermostat, the reduced thermostat switches “on” and sends voltage to the reduced heating element (a thermostat that has actually switched energy to a heating element or cooling down compressor is pointed out to be “calling”) and warms the water. The voltage will certainly continue to be on the reduced element until either (a) the bottom thermostat is completely satisfied or (b), the leading thermostat spots that the temperature of the water in the leading of the storage tank has actually dropped listed below the temperature level setting of the leading thermostat. When this develops, the leading thermostat changes the power from the lesser thermostat back to the top heating element. This function continues up until the water in both halves of the tank is equivalent to the environments of their particular thermostats.
Setting the leading thermostat greater will certainly not induce the leading aspect to turn on if the water temperature in the best of the container is already higher compared to the highest environment of the thermostat. If this conditions alreadies existing, no click will be found when transforming the temperature establishing and down. It will certainly be essential to reduce the temperature of the water in the container. The most convenient and quickest way to do this is to enable hot water from the tank by just opening a warm water tap. Cold water will enter into all-time low of the tank and combine with the alreadying existing hot water in the storage tank, decreasing the general temperature level.