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What could cause this to happen
Mark_72
Member Posts: 53
Pressure in return on boiler start up. vacuum system. water pushing up in the return's
? Anybody.
? Anybody.
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Steam trap on rad . I tried to put up video but was not able to post. water is shooting up in the returns and causing problems. I have never seen this happen . Vacuum system in an apt building. happening throughout the building . building is 13 stories and a down feed system.
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is it double trapped?Al Corelli0
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No double trap. two pipe system
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Please provide pics of near boiler piping.Mark said:Pressure in return on boiler start up. vacuum system. water pushing up in the return's
? Anybody.
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Is the vac pump running when this happens?All Steamed Up, Inc.
Towson, MD, USA
Steam, Vapor & Hot-Water Heating Specialists
Oil & Gas Burner Service
Consulting0 -
Is the overflow and vent on the tank plugged or capped.? Are the returns hot, do you have traps blowing through? Any wet returns or lifts in the vacuum system? Is the vacuum pump pulling a vacuum?0
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This happens when the vac pumps are running. The pumps are venting but I have not ruled them out. Steamhead you were in this building apox. 2006. It's a Shipco pump /boiler feed system.
I am getting some hg 1/2at start and then I've seen it pull as much as 10hg. I just have not been able to take system down to rebuild vac just yet . that is in my plan as soon as we shut down for the season.0 -
I'll post some pic's tomorrow0
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