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| The Scuppers This is a new forum for the not necessarily fishing related topics... |
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06-12-2011, 07:53 AM
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#1
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GrayBeards
Join Date: Jan 2011
Posts: 1,132
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Plumbing/HW oil burner question
I have 3 zones in my system, last spring I had a zone in the family room that was getting hot by itself. I was running wide open, disconnected the thermostat and didn't make any difference. The taco circulator wasn't running that I could tell but only this zone was getting so hot you couldn't touch the pipes in or out.
I figured it was somehow gravity bleeding and shut the valve off at the circulator. My question is this: Is this a bad circulator or is this a bad flow control valve on the other side near the expansion tank? Not sure what that flow control valve does..
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06-12-2011, 08:22 AM
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#2
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Registered User
Join Date: Sep 2003
Location: Libtardia
Posts: 21,692
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Sounds like a bad control valve. To isolate it, switch another thermostat that you know works and see if it operates the valve. If it does, your thermostat is broken. If nothing changes it's your valve.
Posted from my iPhone/Mobile device
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06-12-2011, 09:03 AM
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#3
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GrayBeards
Join Date: Jan 2011
Posts: 1,132
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I am thinking the valve is stuck wide open right now, as soon as I put the petcock for that zone back on it's going to heat that zone again.
When the service guy was here last he "flushed" the system. Yea I think he flushed all the crap into that valve..
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06-12-2011, 01:21 PM
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#4
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Registered User
Join Date: May 2000
Location: Cumberland,RI
Posts: 8,555
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There is a little lever on the zone valve that he may have opened to f;ush the system and forgot to close. That lever will leave it wide open unless pushed back closed. the lever simply opens the valve mechanically rather than with the magnet in the head that opens it when the thermostat calls for heat.
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Saltheart
Custom Crafted Rods by Saltheart
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06-12-2011, 02:29 PM
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#5
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Soggy Bottom Boy
Join Date: Jan 2004
Location: Billerica, Ma.
Posts: 7,260
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Scott each zone should have a flow check valve
Does each zone have it's own circulator or does it have Zone valves with one big circulator?
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Surfcasting Full Throttle
Don't judge me Monkey 
Recreational Surfcaster 99.9% C&R
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06-12-2011, 02:59 PM
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#6
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Permanently Disconnected
Join Date: Nov 2002
Posts: 12,647
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each zone has it's own circulator the flow valve is on the other side it's marked taco 19 with an arrow so this is what's bad then.
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06-12-2011, 05:20 PM
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#7
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Soggy Bottom Boy
Join Date: Jan 2004
Location: Billerica, Ma.
Posts: 7,260
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I would have to say with out looking at it yes
do you have a boiler mate or a tankless?
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Surfcasting Full Throttle
Don't judge me Monkey
Recreational Surfcaster 99.9% C&R
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06-12-2011, 05:26 PM
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#8
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Permanently Disconnected
Join Date: Nov 2002
Posts: 12,647
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Tankless
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06-12-2011, 05:33 PM
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#9
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Soggy Bottom Boy
Join Date: Jan 2004
Location: Billerica, Ma.
Posts: 7,260
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It sounds like the check valve/ flow control to me
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Surfcasting Full Throttle
Don't judge me Monkey
Recreational Surfcaster 99.9% C&R
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06-12-2011, 08:30 PM
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#10
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Registered User
Join Date: Mar 2006
Posts: 69
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flow control valve. on the top there is a knob or lever.turn it down clockwise.if it heats up switch it out.
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06-12-2011, 09:36 PM
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#11
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Registered User
Join Date: Sep 2003
Location: Libtardia
Posts: 21,692
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Try stroking the petcock.
Posted from my iPhone/Mobile device
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06-13-2011, 08:34 AM
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#12
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Retired Surfer
Join Date: Dec 2000
Location: Sunset Grill
Posts: 9,511
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Quote:
Originally Posted by Nebe
Try stroking the petcock.
Posted from my iPhone/Mobile device
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Nebe can never resist the urge to stroke his petcocks! |
Swimmer a.k.a. YO YO MA
Serial Mailbox Killer/Seal Fisherman
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06-13-2011, 03:56 AM
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#13
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Permanently Disconnected
Join Date: Nov 2002
Posts: 12,647
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