According to this when a current is passed through a material heat is generated in the material. Now the principle of Joule heating is observed. When the material placed inside the inductor comes in the range of this alternating magnetic field, eddy current is generated within the material. When Alternating current is passed through the coil, an alternating magnetic field is generated around it as per Faraday’s law. Here a solid state RF frequency power supply is applied to an inductor coil and the material to be heated is placed inside the coil. The presence of this feature will raise the cost of the thermostat.So, the above principle is used in the inductive heating process. Ability to check the status of the thermostat and control the settings remotely via smart phones or computer.Weekends settings and setback functions for vacations.Programmable day and night settings of the set temperature.Short cycling of compressor will shorten its lifetime. 3 minutes mininum compressor off time to prevent the short cycling of compressor.Error codes that tell you the reason why your system is not running properly.Low voltage checking that prompts you that the incoming power is low.Look out for the following features that are incorporated in most modern programmable heat pump thermostat. This feature should only be used for a while as the energy cost is usually higher than a heat pump system. It will then turn on the strip heat which becomes the primary source of heating. Some thermostat may have a feature called Emergency Heat where when set, it will shut off the heat pump. In this case the terminal W2 will be present. This is usually installed in regions where extreme winter occurred. Sometimes, there is a 2nd stage heating where additional heating is provided to supplement the primary heating system. In this case the terminal Y2 is usually used. In some equipment, there is a 2nd stage cooling that helps to increase the cooling capacity of the room. Only one connection is active at any one time, that is either O or B terminal is used but not both. If the reversing valve is turned on when running heat mode, you will need to connect the reversing valve to B terminal. The O terminal is used when the system that you are using has a reversing valve (or four way valve) which is turned on when running cooling mode. Therefore, it is important the check the manufacturer's specifications of the heat pump system that you are using before you can do a proper connection to the thermostat. However, there are instances where the reversing valve is off when running cool mode. In most cases, the reversing valve is energized when running cool mode. The reversing valve is a device that reverses the flow of the refrigerant in the piping system. The G terminal is connected to the indoor fan which circulates the air in the room. This terminal will call for the need to cool the room when the set temperature is lower than the room temperature. The Y terminal is where the signal to the cooling air conditioner signal is connected. These two connections will ensure that there is power to the thermostat that you are operating. The color of wire R is usually RED and C is BLACK. Heat pump thermostat wiring - A typical wire color and terminal diagramĪs shown in the diagram, you will need to power up the thermostat and the 24V AC power is connected to the R and C terminals. In heat pump system, there are at least 8 wires that need to be connected to the thermostat for proper operation. It is always a good idea to take a picture of the current heat pump thermostat wiring before you start removing them. As always, if you are not trained to handle electrical equipment, please get a qualified technician to do it. If you are not sure, always refer to the operating manual of your thermostat in your house before attempting to do any trouble shooting or replacement work. Normally, an electronic thermostat in the United States is powered by a 24V AC power supply which comes from a 110V/24V power transformer. A new programmable heat pump thermostat can be purchased for less than $50. There are many types of electronic thermostat in the market these days, hence please check that the type of thermostat that you are using can be replaced with the newer ones. If you are looking for a better understanding of heat pump thermostat wiring, here is an example of a typical electronic type heat pump control wiring which is located inside your house.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |