Hi, my low stage reads 3.8"wc. I've tried turning the adjustment screw to bring it down to around 1.7"wc. But turning the adjustment screw has no effects. Is it a bad gas gave then? Thanks
They are sensitive to temperature changes. So if you're bringing in from a cold or hot truck you will need to let the meter's temp stabilize to it's new environment temp. before using.
I took a class on the furnace. It mentioned I have to check the gas provider pressure, run the furnace and time clock the gas meter. I couldn't find any video talking about it. It would be great if you could make one. Thanks for the content!
Make a video on clocking the gas meter? Not sure how that would help for setting up the gas pressure. The best way to set the gas pressure is to measure the gas pressure.
@@TECTubefilms oh no, it was a training from carrier enterprise. Told us we have to time the gas meter see how many revolution and then calculate and match btu on furnace.
@@seek3n That will just tell you how much gas you are consuming. Not sure how you would set the gas pressure based on that. Plus wouldn't it be easier to hook up your manometer at the furnace and adjust the gas pressure while you are looking at the meter in real time?
Are you saying that you have a two-stage furnace where the furnace does not have a W1 and a W2 input? Or are you saying that you have not wired the thermostat to both W1 and W2 on the furnace?
@@TECTubefilms I’m saying that that the thermostat terminal strip on the circuit board has Red for power, Yellow for AC, Green for blower, White for heat and Blue for common.
@@timaldrich4750 If there is no W2 input on the furnace, it is not likely a 2-stage furnace. We represent 6 brands of furnace and all 2-stage models have both a W1 and W2. Are you sure it is a 2-stage? Does the gas valve have wiring labels for both Lo and Hi?
@@TECTubefilms Thanks Tec Tube for your help. Yes it is a Goodman GMH95 gas furnace. Also on the circuit board next to the thermostat terminal strip is a dip switch which can be moved to 1stage or 2 stage. In addition, the gas valve has a low fire adjustment port and a high fire adjustment port.
I don’t understand why you dont show pressure coming into gas valve that should not be skipped. Think thats part of the steps when checking gas pressures
True. Our market has less than 5% propane furnaces so we normally think about natural gas here. We will change the name of the video to clarify that this is for natural gas.
@@bobtwo True. But honestly, we only care about the contractors in our market. Anyone else who stubbles upon our page is cool, but not someone we are going to sell products to our take support phone calls from. LOL But in either case we did change the name of the video yesterday to state "natural gas" to avoid any confusion for those in other markets that use a lot of propane.
@@TECTubefilms I'm not sure, actually. I'm going to assume it's for safety reasons. I just started going to college for HVACR last year; so this is all new to me. But every other TH-cam video that I've watched (where an individual is teaching how to connect a manometer to a gas valve in order to test the gas pressure), they always turn the gas off first. After connecting it properly, then they turn it back on. Maybe it's so gas won't enter the space that the technician is in, possibly igniting an external fire source (such as a gas stove downstairs in the conditioned space or something)? 🤷🏻♂️😆
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Great Job Dave, covered it all. I’m ready Now!!
great video thanks
Nice job!
Whats the size of the stiffer hose use to slide over newer gas valve I can't find a kit for it anywhere.
Well made video, thanks.
Great video. If I might say so, your hand is blocking the camera from capturing exactly what you're doing. ie. when you're unscrewing the port.
Do you have a pt# for the new style gas valve adaptor?
Hi, my low stage reads 3.8"wc. I've tried turning the adjustment screw to bring it down to around 1.7"wc. But turning the adjustment screw has no effects. Is it a bad gas gave then? Thanks
Sounds like a bad gas valve. I had one yesterday that isn’t letting gas through it.
Thanks
Can you calibrate those manometers? I have the same one I just bought. And the numbers keep fluctuating up and down.
Take a look at the Field Piece instructions under the section called Field Calibration. www.fieldpiece.com/media/manuals/Opman-SDMN5-v15.pdf
Although, hunting/fluctuation is generally not a calibration issue.
They are sensitive to temperature changes. So if you're bringing in from a cold or hot truck you will need to let the meter's temp stabilize to it's new environment temp. before using.
I took a class on the furnace. It mentioned I have to check the gas provider pressure, run the furnace and time clock the gas meter. I couldn't find any video talking about it. It would be great if you could make one. Thanks for the content!
Make a video on clocking the gas meter? Not sure how that would help for setting up the gas pressure. The best way to set the gas pressure is to measure the gas pressure.
Who/where was the furnace class you took? It wasn't in one of our labs was it?
@@TECTubefilms oh no, it was a training from carrier enterprise. Told us we have to time the gas meter see how many revolution and then calculate and match btu on furnace.
@@seek3n That will just tell you how much gas you are consuming. Not sure how you would set the gas pressure based on that. Plus wouldn't it be easier to hook up your manometer at the furnace and adjust the gas pressure while you are looking at the meter in real time?
Camera too far away!
More closeups...less you!
How would you do the high fire adjustment if you have only one "W" on the thermostat terminal strip of a 2 stage furnace?
Are you saying that you have a two-stage furnace where the furnace does not have a W1 and a W2 input? Or are you saying that you have not wired the thermostat to both W1 and W2 on the furnace?
@@TECTubefilms I’m saying that that the thermostat terminal strip on the circuit board has Red for power, Yellow for AC, Green for blower, White for heat and Blue for common.
Jumper goes to red(power) and white(heat) for the low fire and want to know jumper connection for high fire - thanks.
@@timaldrich4750 If there is no W2 input on the furnace, it is not likely a 2-stage furnace. We represent 6 brands of furnace and all 2-stage models have both a W1 and W2. Are you sure it is a 2-stage? Does the gas valve have wiring labels for both Lo and Hi?
@@TECTubefilms Thanks Tec Tube for your help.
Yes it is a Goodman GMH95 gas furnace. Also on the circuit board next to the thermostat terminal strip is a dip switch which can be moved to 1stage or 2 stage. In addition, the gas valve has a low fire adjustment port and a high fire adjustment port.
I don’t understand why you dont show pressure coming into gas valve that should not be skipped. Think thats part of the steps when checking gas pressures
How often do you have to calibrate your furnace?
The gas pressure only needs to be set once... preferably when the system is first installed.
You are assuming all gas is the same, mine is propane very different settings
True. Our market has less than 5% propane furnaces so we normally think about natural gas here. We will change the name of the video to clarify that this is for natural gas.
On TH-cam you have no local market, look smart add propane, thanks much
@@bobtwo True. But honestly, we only care about the contractors in our market. Anyone else who stubbles upon our page is cool, but not someone we are going to sell products to our take support phone calls from. LOL
But in either case we did change the name of the video yesterday to state "natural gas" to avoid any confusion for those in other markets that use a lot of propane.
Ultra low nox is not going to work with propane amigo
You don't recommend first turning off the gas when connecting the manometer to the furnace?... 🤷🏻♂️
Why?
@@TECTubefilms I'm not sure, actually.
I'm going to assume it's for safety reasons.
I just started going to college for HVACR last year; so this is all new to me. But every other TH-cam video that I've watched (where an individual is teaching how to connect a manometer to a gas valve in order to test the gas pressure), they always turn the gas off first. After connecting it properly, then they turn it back on.
Maybe it's so gas won't enter the space that the technician is in, possibly igniting an external fire source (such as a gas stove downstairs in the conditioned space or something)? 🤷🏻♂️😆
pansy