A thermopile is an electronic device that converts thermal energy into electrical energy. TH and TP are the abbreviations for thermostat and thermopile respectively. It is not difficult to replace a thermopile; simple remove the two wires connecting it to the gas control valve and the pilot tube, orifice or hood which is reducing the size of the pilot. - I have a Heat-n-Glo vented gas fireplace. A thermopile generator generates electrical energy from heat. Adding more thermocouple pairs in series increases the magnitude of the voltage output. ROBERTSHAW Pilot and Thermopile, 90 Degree Right $28.26. The thermocouple more or less acts like a sensor for gas flow and supplies gas to the pilot light through the gas valve. When a … Took a new reading after turning the pilot … %PDF-1.6 %���� The thermopile powers a second circuit that operates the main valve. DesaTech.com is an information site for products manufactured by Desa prior to 2009. When it comes to your hot water heater, the pilot light heats up the thermopile. Because the system will not function if the flame is not lit, the device is also a safety control. endstream endobj startxref Once a closed circuit is made up of more than one metal and there is a difference in temperature between junctions and points of transition from one metal to another, a current is produced as if generated by a difference of potential between the hot and cold junction.[2]. If the pilot light remains lit, but the gas fireplace doesn’t, it likely indicates an issue with your thermopile. A thermopile is a thermoelectric device that consists of an array of thermocouples connected in series. Then it gives the essential signals to the gas control valve that pilot was turned on … As the heat reaches the second junction of the thermocouple, it generates electrical voltage. $13.99. The thermocouple senses the gas pilot flame and prevents flow to the main burners when there is inadequate heat to ignite the burner. Thermopiles can be constructed with a single thermocouple pair, composed of two thermocouple junctions, or multiple thermocouple pairs. Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. The thermopile, on the other hand, opens up the gas valve when the fireplaces are turned on. Model 6000TRB. You can use the multimeter which can measure the millivolt, … The electric power generated by the thermopile is very small, so the gas valve is designed to utilize gas pressure to assist in opening the valve. Such a device works on the principle of the thermoelectric effect, i.e., generating a voltage when its dissimilar metals (thermocouples) are exposed to a temperature difference. [3], Thermopiles are used to provide an output in response to temperature as part of a temperature measuring device, such as the infrared thermometers widely used by medical professionals to measure body temperature, or in thermal accelerometers to measure the temperature profile inside the sealed cavity of the sensor. This device generates a small electric signal to keep the gas valve open when the pilot is on. A collection of pilot assemblies which include both a thermocouple and a thermopile. Fireplaces, Wood Burning and Heating Stoves, Flues and Chimneys - Thermopile removal, gas fireplace. Reliance, natural gas thermopile assembly, includes pilot tube, ferrule Nut igniter wire, millivolt generator & bracket, fits 301 series natural gas standard tank water heaters.This product adds a great value. If either of these malfunction than the pilot light will not be able to do its job. Gas fireplaces and fireplace inserts use thermocouples and thermopiles primarily to generate electricity. In heating systems a thermocouple is one junction of metals that when heated by a pilot flame generates approximately 25 mv and holds open an electromagnetic valve to allow gas to pass as long as there is a pilot. The thermocouple, which operates as a safety device, turns the gas supply off when the pilot light goes out. 0 An example of a thermopile used in gas-fired heating equipment and appliances is shown in Figure 5-41. Water Heater Pilot Assembely Includes Pilot Thermocouple and Tubing LP Propane 4.4 out of 5 stars 123. thermopile (pilot generator) will generate electricity to operate the gas control valve. This particular unit produces A pilot light can go out. A thermopile forms a part of a millivolt or self-energizing control circuit. A thermopile is an electronic device that converts thermal energy into electrical energy[1]. A thermopile is an electronic device that converts thermal energy into electrical energy.It is composed of several thermocouples connected usually in series or, less commonly, in parallel.Such a device works on the principle of the thermoelectric effect, i.e., generating a voltage when its dissimilar metals (thermocouples) are exposed to a temperature difference. [1], Thermocouples operate by measuring the temperature differential from their junction point to the point in which the thermocouple output voltage is measured. Pilot-operated gas log fireplaces incorporate a thermocouple to monitor the pilot flame and a thermopile to enable control via a thermostat or other remote device. In this HVAC Furnace Video, I go over the Operation and Troubleshooting of a 750 Millivolt Gas Valve and Thermopile/PowerPile.