Ignition problem
Comments
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I've used the wire in the tie from a loaf of bread to clean various small holes. The one on today's bread measures .016".
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I get the feeling the Q348U is only universal to a point, it seems it is not for standing pilot systems.
Maybe one of these depending on which type is used.
I'm guessing
National - U.S. Gas Boiler 45+ Years Old
Steam 300 SQ. FT. - EDR 347
One Pipe System0 -
Great info. The burner and pilot did go out that evening. I lit the pilot yesterday morning and it's still on this today. Told her to get the gas company out to check the pressure before i go and do anything else.
Bryant 245-8, 430k btu, 2-pipe steam in a 1930s 6-unit 1-story apt building in the NM mountains. 26 radiators 3800sqf
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it will work on a standing pilot, just don't install the flame rod
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you could try putting a relighter on it but i think something is floating around and plugging the orifice.
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If her gas pressure tests good I'll probably get one. One of the wings on her unit is broken off.
Bryant 245-8, 430k btu, 2-pipe steam in a 1930s 6-unit 1-story apt building in the NM mountains. 26 radiators 3800sqf
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The Q348U instructions specifically mention for intermittent pilot, nothing about a thermocouple. Besides the igniter rod assembly looks crimped or a press fit in place, I don't think the manufactures intent is a field retrofit to a thermocouple. I will look at it again later.
National - U.S. Gas Boiler 45+ Years Old
Steam 300 SQ. FT. - EDR 347
One Pipe System0 -
For standing pilot, the Q327A is a good batwing replacement. The Q314A would cover target-type applications.
All Steamed Up, Inc.
Towson, MD, USA
Steam, Vapor & Hot-Water Heating Specialists
Oil & Gas Burner Service
Consulting1 -
Since a new gas valve was installed (whether it needed it or not), I believe the present issue is high pressure to the pilot, audible in the video (and the main burner pressure was a bit high also) . I bet the pilot pressure was never adjusted with the new gas valve.
National - U.S. Gas Boiler 45+ Years Old
Steam 300 SQ. FT. - EDR 347
One Pipe System
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if you watch the video the pilot goes out then the safety valve closes because the pilot went out. the problem isn't that the thermocouple isn't being heated, the problem is that the pilot is going out. the pilot isn't orange or lifting off the burner, it just suddenly goes out. many old, large plots are quite loud if you get down near them in a quiet room.
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do you have a longer clip of the pilot burner burning? you posted it just as it goes out, we can't see how it is burning before that.
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I never said the thermocouple was not getting heated. The question is why is the pilot going out ??? I'm thinking too much fuel (not lack of air) until someone proves me wrong.
National - U.S. Gas Boiler 45+ Years Old
Steam 300 SQ. FT. - EDR 347
One Pipe System0
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