How To Test Water Column Gauges For Gas Furnaces вђ Howto Hvac A comparison of the different water column measurement tools and how they are used. in gas appliances. the slack tube manometer. the magnehelic. the diaph. In this hvac service video i go over why i use this type of water column manometer, how to use this for testing pressure switches accurately, and the many ot.
How To Test Water Column Gauges For Gas Furnaces Youtube This hvac video is about how to check and adjust the outlet gas pressure in the water column for a natural gas furnace. i show you where you can find the tar. Turn the gas off. locate the pressure tap on the gas valve and unscrew the plug. then screw in your manometer. turn the gas back on. turn on the furnace and start it. the manometer will give the reading in water column in inches. turn gas off. screw back in the gas valve plug using a small amount of pipe dope. One psi is equal to 27.71 inches of water column; this is why water column is most often used to measure pressures under 1 psi. these low pressures are most often read using a manometer or a magnehelic gauge. when we measure inches of water column with our tools, we calibrate it at atmospheric pressure or the gauge scale instead of the absolute. This total measurement represents the inches of water column pressure. for rv appliances to operate properly, and safely the operating pressure should be 10 ½ to 11 inches of water column. on an rv the lp gas pressure is regulated by a two stage regulator. the job of the first stage is to regulate the vapor pressure coming out of the container.
How To Service And Properly Test Water Column Gauges On A Gas Furna One psi is equal to 27.71 inches of water column; this is why water column is most often used to measure pressures under 1 psi. these low pressures are most often read using a manometer or a magnehelic gauge. when we measure inches of water column with our tools, we calibrate it at atmospheric pressure or the gauge scale instead of the absolute. This total measurement represents the inches of water column pressure. for rv appliances to operate properly, and safely the operating pressure should be 10 ½ to 11 inches of water column. on an rv the lp gas pressure is regulated by a two stage regulator. the job of the first stage is to regulate the vapor pressure coming out of the container. If a water column gauge is not available or as a double check of the gas input to an appliance, you can clock the meter. before beginning, shut off the gas cocks to all appliances on the gas line. start the appliance to be tested. at the meter, look at the dials. the meter on the left has 6 dials. ignore the top 4. they are for billing only. Ideal tool for testing gas stoves, furnaces, dryers, and other gas appliances. large, easy to read diaphragm gauge is calibrated in inches of water column (0 35 inches) and ounces per square inch. gauge is economical and accurate easier to use than a manometer.
How To Test Water Column Gauges For Gas Furnaces If a water column gauge is not available or as a double check of the gas input to an appliance, you can clock the meter. before beginning, shut off the gas cocks to all appliances on the gas line. start the appliance to be tested. at the meter, look at the dials. the meter on the left has 6 dials. ignore the top 4. they are for billing only. Ideal tool for testing gas stoves, furnaces, dryers, and other gas appliances. large, easy to read diaphragm gauge is calibrated in inches of water column (0 35 inches) and ounces per square inch. gauge is economical and accurate easier to use than a manometer.
How To Test Water Column Gauges For Gas Furnaces вђ Howto Hvac
Comments are closed.