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Model: GM35
Item Title:Natural Gas LPG Propane Furnace and other Alliance manifold Line Low Pressure Gauge Manometer Kit 35 in WC
S&H: $6.95, Continental USA, S&H varies to other areas and countries.

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Q:How do I measure the gas pressure to my furnace/appliance? Will the hose connect to my gas line?

A: All gas LPG Propane appliances suppose to have a port, that is covered/capped at the manifold line level, likely at teh gas control valve, the manometer you just purchased will have a 1/8" NPT nipple/adapter that will fit to this port. Turn off the gas supply to this appliance you are going to measure the gas pressure, take away the cap covering the port and replace it with this nipple, and slide the black hose to it. Turn on the gas and the appliance, once the appliance calls for fire, you will be able to read the gas pressure. Remember to turn off the gas to this appliance before you take away the manometer with the nipple, make sure the port is covered with the cap that you just took away, and tightened it securely before turn on the gas.

Q:How do I calibrate the manometer?

A: the gauge was calibrated at the factory before shipping. it should be accurate as described. if you find the gauge need to be re-calibrated for any reason like dramatic change in temperature, or dropping, or any physical impact on the manometer, yes, you may re-calibrate the gauge by following these steps:

1: Be careful not to damage the diaphragm or any part of the mechanics.
2. make sure you have a really accurate standard (10 inch water column preferred) before you do the calibration.
3:Hook up the manometer parallel with the standard you have.
4, take away the facial cover by turning it anti-clock-wise with 2 hands, NO PLIERS should be used.
5, the Philip's screw at the very button(in the hole of the facial panel) is for re-calibration, turning this screw tighter or loose with a screw driver to make the reading match the standard.
6, after the calibration, put the facial cover back.

Q:I was told that the gas pressure coming to my water heater is too high. I want to test it and to reduce the pressure at the regulator level. Do I need an adaptor between this gauge and the regulator to measure the pressure?? or it is jut matter of screwing the gauge on the regulator and read the level?

A: hi, nice to have your question, here is what I think. the regulator outside of your house/apartment belong to the utility/power company and the power company should adjust the gas pressure to the right level(12 to 15 inch WC). As a consumer, you do have the right to call them and let them correct the gas pressure, and I know they come out and do it for free. But you should NOT attempt to do adjust it by your self.

Every gas consuming appliance should have one port for pressure checking. this gauge has the right sized connection to this port and push in the tubing come with the gauge, you get the pressure when you turn on the gas. the pressure at this level should be about 10 to 12 inch WC(consult with your use manual or call your appliance manufacture to confirm it).



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