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Old 10-01-2012, 11:17 PM   #1
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gas system check


Hey I'm just starting my company and have been doing service and checks for a few months now. I am starting to get calls for no heat, and gas heat service. I was wondering what checks need to be done on gas heat to make sure every thing is running well. What tools/ meters do I need to purchase? I have flute and field piece for the ac side and heat pumps, but nothing for nat gas. I know how to check the pressure coming in the then through the gas valve (11 WC for nat gas). I was thinking there was a fume detector or something I needed. something to check to flame maybe, not sure what all I need.

Thanks for the help

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Old 10-01-2012, 11:46 PM   #2
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Originally Posted by wetbar View Post
Hey I'm just starting my company and have been doing service and checks for a few months now. I am starting to get calls for no heat, and gas heat service. I was wondering what checks need to be done on gas heat to make sure every thing is running well. What tools/ meters do I need to purchase? I have flute and field piece for the ac side and heat pumps, but nothing for nat gas. I know how to check the pressure coming in the then through the gas valve (11 WC for nat gas). I was thinking there was a fume detector or something I needed. something to check to flame maybe, not sure what all I need.

Thanks for the help
please take this the right way....you need more education on the operation of natural gas furnaces and saftey before you start working on them..... peoples lives are at risk.....Iam sure you mean well and i wish you the best .. ben sr

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Old 10-01-2012, 11:58 PM   #3
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What experience do you have which gave you the initiative to start your own business? You have entered a field which deals with comfort and safety and you have some questions as to how to perform your job properly? I don't know your situation, but if you are able to hire somebody whith the techinical ability and knowledge to do these tasks you will be much better off. As far as you personally, you need to get training to work on the systems which you are servicing. You are opening yourself up to a great amount of liability should one of your service calls goes awry.
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Old 10-01-2012, 11:58 PM   #4
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please take this the right way....you need more education on the operation of natural gas furnaces and saftey before you start working on them..... peoples lives are at risk.....Iam sure you mean well and i wish you the best .. ben sr
Seconded.
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Old 10-02-2012, 12:03 AM   #5
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please take this the right way....you need more education on the operation of natural gas furnaces and saftey before you start working on them..... Peoples lives are at risk.....iam sure you mean well and i wish you the best .. Ben sr
ditto
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Old 10-02-2012, 12:14 AM   #6
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I have been doing hvac service for years, I just don't do a lot of gas. And the gas I have done has always been pressure switch, blowers, bad boards and stuff like that. I have been repairing them for years but have never done a complete service and checkup. I don't have a combustion analyzer or anything like that,

Just wondering what everyone else was doing and using.
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Old 10-02-2012, 12:17 AM   #7
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Quote:
Originally Posted by wetbar
I have been doing hvac service for years, I just don't do a lot of gas. And the gas I have done has always been pressure switch, blowers, bad boards and stuff like that. I have been repairing them for years but have never done a complete service and checkup. I don't have a combustion analyzer or anything like that,

Just wondering what everyone else was doing and using.
Are you certified to work on gas?

Last edited by hvac benny; 10-02-2012 at 12:21 AM.
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Old 10-02-2012, 12:19 AM   #8
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Tools:
Multimeter
Manometer
CO detector

You need to check:
Inducer motor amps
Blower motor amps
Capacitor if it's on the manufacture range
Leak on heat exchanger
Pressure switch
Check safety circuit if it is working properly
Simulate if the high limit will open without blower motor running.
Flame sensor microamperes
Gas valve pressure
Ignitor is working ok
Burners are clean.
drain line
Overall clean

You need to know operation for:
80% single stage
80% 2 stage
90% single stage
90% 2 stage
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Old 10-02-2012, 12:20 AM   #9
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Jjboy...I give up..what does "real man shoot in manual" mean in your tag line?
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Old 10-02-2012, 12:24 AM   #10
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Jjboy...I give up..what does "real man shoot in manual" mean in your tag line?
This is related to photography .... means not shooting in automatic (A)
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Old 10-02-2012, 12:26 AM   #11
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hey missouri wow even i knew that....click click...
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Old 10-02-2012, 12:28 AM   #12
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Originally Posted by ben's plumbing View Post
please take this the right way....you need more education on the operation of natural gas furnaces and saftey before you start working on them..... peoples lives are at risk.....Iam sure you mean well and i wish you the best .. ben sr
I agree ...you have a basic fundamental of natural gas wrong.... you need to figure out the pressure before you buy anything....
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Old 10-02-2012, 12:38 AM   #13
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I agree ...you have a basic fundamental of natural gas wrong.... you need to figure out the pressure before you buy anything....
What do you mean pressure? Nat gas is 11.7 - 12.2 of WC for perfect combustion. I know Propane is a little higher, but we mainly see natural gas around here. Am I wrong?
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Old 10-02-2012, 12:41 AM   #14
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Quote:
Originally Posted by wetbar

What do you mean pressure? Nat gas is 11.7 - 12.2 of WC for perfect combustion. I know Propane is a little higher, but we mainly see natural gas around here. Am I wrong?
Pressure alone won't tell you jack about combustion, let alone perfect combustion.
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Old 10-02-2012, 12:45 AM   #15
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What do you mean pressure? Nat gas is 11.7 - 12.2 of WC for perfect combustion. I know Propane is a little higher, but we mainly see natural gas around here. Am I wrong?
nothing good gonna come of this.... my lips are sealed.... read some books ...fast....

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