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PostPosted: Thu Mar 02, 2017 5:01 pm 
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Hi All,
Please confirm if i can get in touch with Conic TRV manufacturer, as i could not find thier details.

However the problem i have , when i closed the TRV Valve, it does not close the Rad valve, as the heating is still on, when i check it the following morning.

I have checked the pin, when i removed the head, as the pin goes up and down.

So i do not know if the TRV head is faulty or when you turn the TRV head clockwise to close it, the part which raises up or down, might not go down far enough.

This rad valve has different design, as i could not replace the head of say westherm TRV.

I have the other rad valve which is Myson and this works fine, as when i shut this valve the heating does not come on.


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PostPosted: Thu Mar 02, 2017 7:27 pm 
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caretaker wrote:
Please confirm if i can get in touch with Conic TRV manufacturer, as i could not find their details.

I tried finding who owned the trademark - no luck there.

Quote:
However the problem i have , when i closed the TRV Valve, it does not close the Rad valve, as the heating is still on, when i check it the following morning.

1. Is the rad just as hot when on minimum setting as on maximum?

2. What is the lowest setting: is it a 0 or a *?


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PostPosted: Thu Mar 02, 2017 8:22 pm 
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Hi David,
Thank you for your reply.

I tried and I could not find out who owned the Conic TRV.

I am not exactly sure , but they do get warm to hot.

When I close the Thermotstatic rad valve it has the symbol ^ solid triangle, which should be closing the valve and number 5 is the maximum open, the valve fully opened.


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PostPosted: Fri Mar 03, 2017 10:30 am 
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What is the sequence of symbols/numbers from "triangle" to 5?

Is this the only Conic rad in the house? If not, have you tried swapping heads?

If you remove the head and hold the pin down for a long time (with a clamp, not your fingers) does the rad cool right down?


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PostPosted: Mon Mar 06, 2017 2:08 pm 
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Hi David,
Sequence is triangle to 5.

There are few in the house and same thing happens.

I need to do an experiment on the point 3 and get back to you, but i am pretty sure this works.

My suspect is the head and the when you turn it clockwise the part whihc goes up/down, does not go fully down and in effect it is keeping the valve partially opened.


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PostPosted: Tue Mar 07, 2017 12:21 pm 
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caretaker wrote:
Sequence is triangle to 5.

There are few in the house and same thing happens.

I need to do an experiment on the point 3 and get back to you, but i am pretty sure this works.

My suspect is the head and the when you turn it clockwise the part whihc goes up/down, does not go fully down and in effect it is keeping the valve partially opened.

I would hazard a guess that the triangle mark is their version of the * mark, which is used to indicate the frost setting on most TRVs. (Fully off is normally a 0). When on the frost setting the TRV stays closed unless the room temperature drops to 5/6C, when the TRV will open to ensure the room doesn't get any colder.

If the other TRVs do the same, that suggests there's nothing wrong with the TRV head. If you want to be able to shut the rad off completely you will need to change the complete TRV for one which has an off setting.


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PostPosted: Thu Mar 09, 2017 5:15 pm 
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Thank you for your reply.

See the Image of the TRV.

The valve does not go down far enough , unless if i place 5p to place extra pressure to close the valve completely.


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PostPosted: Thu Mar 09, 2017 8:26 pm 
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There is a snowflake mark between the triangle and 1. This will be their version of the * (frost) mark so the triangle should be the off mark. Were the valves purchased as complete set, i.e body and head?

It's a well-known trick to use a coin to shut off a TRV, but only on those which do not have a dedicated off position.

Are you setting the TRV head to 5 before replacing it on the valve body?


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PostPosted: Fri Mar 10, 2017 1:58 pm 
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David,
Thank you for your reply.

Valves were purchased complete Valve TRV and Body.

I set it to 5 when replacing on the body.


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PostPosted: Tue Oct 03, 2017 2:37 pm 
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http://www.pettinaroli.com/prodotto_det ... N&lang=ING

http://www.pettinaroli.com/ricerca_seri ... d&lang=ING


Found the link, as it was made by Italian manufacturer.


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