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Post by endfeed on Sept 30, 2016 17:50:38 GMT
Hi chaps,what plan is a system that is open vented and has one 2port valve that controls heating and hot water and you have to have hot water on whilst heating is on? No room stat or cylinder stat.😮honey well portvalve...
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Post by battle1066 on Sept 30, 2016 18:37:00 GMT
Isn't that the C plan?
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Post by rocketmanbkk on Sept 30, 2016 18:38:19 GMT
The other mysteries of life...
Heating systems - S plan or Y Plan
Wtf??!!!
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Post by tomplum on Sept 30, 2016 18:47:43 GMT
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Post by endfeed on Sept 30, 2016 18:54:31 GMT
Not sure if its a c plan or not,understand the y plan and s plan.never sure with this set up.maybe tom will shed some light on it😀
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Post by tomplum on Sept 30, 2016 18:54:37 GMT
a 'Y' plan uses a 3 port valve a'S; plan uses 2 x 2 port valves a 'G; plan is gravity with a 2 port on the hot water circs,  |
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Post by rocketmanbkk on Sept 30, 2016 18:54:49 GMT
Yep, as I thought, a mystery!!!
Black & white was good though Tom
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Post by rocketmanbkk on Sept 30, 2016 18:56:45 GMT
a 'Y' plan uses a 3 port valve a'S; plan uses 2 x 2 port valves a 'G; plan is gravity with a 2 port on the hot water circs, So at my mums she's got a 3 port valve so it's a Y plan. Ok. I understand that. Is there a benefit for Y or S plan? Why have 2 set ups? |
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Post by tomplum on Sept 30, 2016 19:02:14 GMT
The Y plan is the most popular and there's less to go wrong, The advantage od an S plan is there's a better flow to both circuits to in a big house an S plan will work better, with an S plan you need a by pass because if both valves shut off , the pump has no where to shunt the water,
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Post by rocketmanbkk on Sept 30, 2016 19:03:56 GMT
 ... I sort of get it. Thx. |
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Post by endfeed on Sept 30, 2016 19:06:49 GMT
Wow!you put that vid together fast tom😉that is the system i have now with no control with the hot water and trvs on rads. It runs well but i worry about the expence of running it. 3 way tap stat maybe to control hot water? Or put a combi in? Systems 20 year old!!!
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Post by tomplum on Sept 30, 2016 19:08:32 GMT
to elaborate a bit, inside a 3 port, when on water only youve got full bore to the hot water, when you put heating on, you'only got half bore to heating and half bore to water untill the water is satisfied then the heating gets full bore, on a S plan you have full bore to each all the time, |
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Post by tomplum on Sept 30, 2016 19:09:45 GMT
that vid is on my youtube channel endfeed, it has been for a while, |
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Deleted Member
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Post by Deleted on Sept 30, 2016 19:09:57 GMT
The S plan is used more for heating systems with different zones too rocky so I big property will often have the downstairs on a separate circuit to the upstairs and UFH layouts. Its easy to keep adding zones with a S plan system .
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... I sort of get it. Thx.