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Oxnard, Ca
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Gaston, Oregon
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 TPR Gas Shut Off Valve
[#2] Posted: 11/02/2011 - 11:59:32 PM |  |  |
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If you're referring to a Watts 210 valve, I've never heard that it had to be plumbed with hard pipe.
Here are the installation instructions:
http://stargroup.com/additiona...pecs.pdf
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Jim Katen, Oregon
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minneapolis, mn
Posts: 48
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TPR Gas Shut Off Valve
[#3] Posted: 11/03/2011 - 06:53:27 AM | | |
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What tha?? I've never heard of a TPRV on a gas line before. Is this a California/West Coast thing?
Jim
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Kenmore, WA
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Delia, Alberta
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TPR Gas Shut Off Valve
[#5] Posted: 11/03/2011 - 09:00:30 AM | | |
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I like the idea of shutting off the gas in the case of over-firing, but the Watts installation manual still requires a pressure relief valve, though it does not appear to be attached directly to the heater. Is it possible to install a PRV in a some other location where proper drain is achievable (laundry room?), provided the other requirements for the drain/discharge tube are met?
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Egbert
Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. - Samuel Langhorne Clemens
www.diamondhomeinspection.ca |
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Oxnard, Ca
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TPR Gas Shut Off Valve
[#6] Posted: 11/03/2011 - 1:49:45 PM | | |
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Thanks Mike for rotating the picture, thought I had done so before posting. Have a call in to Watts because each of the diagrams do show a pressure relief valve with drain line which was not installed on this water heater.
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| Will |
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Seattle, WA
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TPR Gas Shut Off Valve
[#7] Posted: 11/03/2011 - 3:29:04 PM | | |
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Really no need to call Watts, Will. If it doesn't have a pressure relief valve, then it's wrong. But, keep in mind the PRV could be elsewhere. The rule is no shut-offs between the tank and the PRV and the IRC requires them to be "in a water line close to the tank". In a situation such as a basement, where they want to discharge to the exterior, "close" might mean a room above. It would need to be "accessible" but it might not be readily visible.
If you are sure there is no PRV, then report it as a hazard in need of repair. If not certain, then explain it's need, that you didn't or couldn't find it, and recommend someone either provide evidence of it's existence and location or have a plumber install one.
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Richard Moore
Rest Assured Inspection Services
Seattle, WA
http://www.rainspect.com
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Sykesville, Maryland
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TPR Gas Shut Off Valve
[#8] Posted: 11/03/2011 - 4:53:35 PM | | |
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Learned something new today with this, Thanks.
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Oxnard, Ca
Posts: 110
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TPR Gas Shut Off Valve
[#9] Posted: 11/04/2011 - 06:46:54 AM | | |
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Thanks Richard, I saw your post after speaking with the plumber and Watts. The requirement of the PRV makes perfect sense but the installing plumber insisted it was not required so I called Watts and they said exactly what you said. PRV is required.
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Kenmore, WA
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TPR Gas Shut Off Valve
[#10] Posted: 11/04/2011 - 06:51:53 AM | | |
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Belt and suspenders.
ONE TEAM - ONE FIGHT!!!
Mike
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san leandro, california
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TPR Gas Shut Off Valve
[#11] Posted: 05/17/2012 - 06:33:44 AM | | |
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Hi, i'm new here and i've just read this post.
FWIW: in Bay Area Ca. we installed the Watts 210 in the T&P port using hard pipe on either side of the W210 and flexi-connectors at the gas valve and the isolator.
W210's were always installed with a Watts 530C calibrated PRV installed on the water service at the hose bib, just before the service entered the property. The W530C was to control the pressure of water entering the W/H, of course.
No conventional T&P was installed, and the W/H was typically a "Stubby" - apparently, Stubbies are no longer made.
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