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Post by Deleted on Dec 26, 2017 0:21:53 GMT
So I given you a job sheet and address, you arrive at the address and run through the job seat....Fit 22 TRV's excluding the 4 main bathrooms and add inhibitor.
You enter this big country house and have a look around it has lovely wood burning stoves and marble flooded kitchen a big oil fired boiler in the utility room and a huge vented cylinder upstairs with secondary return.
You turn the water off connect your hose to the drain off by the boiler and open it up, you go upstairs and start venting the rads all's going well until you find two rads in two neighbouring bedrooms are still live when you try venting, you leave them for the moment and carry on venting with the downstairs rads until all empty. You return back to the two troublesome rads and try venting again, they are still live. WHY ?
When you've found out why what is your approach in fitting the TRV'S to these two rads ?
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Post by endfeed on Dec 26, 2017 0:46:22 GMT
I'd say they are heat sink and need to be open all the time,no tmv's as they will shut down!!!
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Post by Deleted on Dec 26, 2017 0:52:01 GMT
Heat sink rads from what endfeed and why won't they drain with the others ?
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Post by rocketmanbkk on Dec 26, 2017 8:30:59 GMT
👀
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Post by endfeed on Dec 26, 2017 10:05:28 GMT
Is on a s plan,and the heat sinks are for underfloor heating'?
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Post by Deleted on Dec 26, 2017 10:09:07 GMT
Is on a s plan,and the heat sinks are for underfloor heating'? smiley-sad056 nay |
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Post by battle1066 on Dec 26, 2017 10:22:53 GMT
I think those radiators have been connected to the hot water taps system and the secondary return pump and water feed to cylinder will need turning off to fit the valves.
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Post by Deleted on Dec 26, 2017 10:30:36 GMT
I think those radiators have been connected to the hot water taps system and the secondary return pump and water feed to cylinder will need turning off to fit the valves. smiley-sad056 nay |
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Post by battle1066 on Dec 26, 2017 10:42:28 GMT
Are those two radiators part of the same system with the vented cylinder or another sub system?
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Post by Deleted on Dec 26, 2017 11:10:36 GMT
Are those two radiators part of the same system with the vented cylinder or another sub system? Remember what you identified when you entered the house  you are heading to the right direction battle |
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Post by battle1066 on Dec 26, 2017 11:17:22 GMT
Are those two radiators part of the same system with the vented cylinder or another sub system? Remember what you identified when you entered the house you are heading to the right direction battle Those two radiators are connected to the wood burning stoves possibly via the old back boiler pipework (when Henry VIII stayed there) if so would have to extinguish the fire and then locate and isolate their circuit before fitting the TRVs? |
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Post by Deleted on Dec 26, 2017 11:22:18 GMT
You're correct about them being connected to the wood burning stoves and that's why they are opposite each other in neighbouring rooms, it also means they have their own feed tank in the loft. The stove isn't burning so what will you do now ?
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Post by battle1066 on Dec 26, 2017 11:29:05 GMT
You're correct about them being connected to the wood burning stoves and that's why they are opposite each other in neighbouring rooms, it also means they have their own feed tank in the loft. The stove isn't burning so what will you do now ? Assuming it a standard system tank I would just plug the tank feed and head back to the radiators for another go of draining down then fit my valves. |
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Post by Deleted on Dec 26, 2017 11:30:42 GMT
You're correct about them being connected to the wood burning stoves and that's why they are opposite each other in neighbouring rooms, it also means they have their own feed tank in the loft. The stove isn't burning so what will you do now ? Assuming it a standard system tank I would just plug the tank feed and head back to the radiators for another go of draining down then fit my valves. smiley-sad056 nay |
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Post by Deleted on Dec 26, 2017 11:32:45 GMT
Endfeed was on the case very early but unfortunately lost the plot very quickly, I think he's been to busy burning the shit out of everything with his new blowtorch  |
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you are heading to the right direction battle