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Re: Heater question
Posted: Sun Nov 16, 2014 8:58 pm
by Error323
Hi everyone,
As I'm working towards a zoned heatingsystem I was looking at my heaters and tried fitting an ELV FHT8V-3. And I don't think it fits on this system. What would be the way to adapt it or what am I doing wrong here? Should I rip it further apart? I'm affraid of destroying the heater valves.
See attachments for the pictures. As they will say a 1000 words in this case.
Here are the images on imgur:
http://imgur.com/a/X9bxu
- 1forum.jpg (100.42 KiB) Viewed 12962 times
Re: Re: Heater question
Posted: Sun Nov 16, 2014 9:35 pm
by Bwired
yes, this looks like very old!
Do you need to turn these around to get them open and closed
if Yes, then it will not work, you a version with a small pin which can be pushed down to control.
Re: Re: Heater question
Posted: Mon Nov 17, 2014 12:46 pm
by Massi
i think simply it's not a thermostatic valve..
afaik, all thermostatic valves has a "small pin" that has to be pushed or release to control valve aperture.
And MAX radiator thermostats work in that way.
Yes, you need to change the valve
Re: Re: Heater question
Posted: Mon Nov 17, 2014 8:45 pm
by mvdarend
You can get a cheap replacement (with thermostat) at your local DIY store for about 15-20 euros. (Just get a cheap one, you're not going to use the thermostat itself)
I replaced all my 'normal' taps for thermostats and it was really easy, you can probably re-use the two 'outside' fittings.
Here are the steps:
- Turn off the CV
- Find the lowest drainage point and drain the water.
- Unscrew the left fitting,
- Unscrew the right fitting
- Carefully take out the tap
- The new tap should fit in between the two original fittings, just tighten them back up on the new tap and it should be OK. Check for leaks!
Re: Re: Heater question
Posted: Mon Nov 17, 2014 9:06 pm
by mvdarend
hmmm, I can't edit my previous post because it's being moderated.
I forgot to add the last steps...
- Refill the system, remove any air
- And then check for leaks.
Re: Heater question
Posted: Wed Nov 19, 2014 9:39 am
by pbrand
Keep in mind that the ELV FHT8V-3 comes with some adapter rings and some adapter rings can be purchased separately.
You might want to check/ensure that the ELV supports the thermostatic valve you buy or that you are handy enough to make it fit.
That's the main reason why I installed Danfoss thermostatic valves. Not the cheapest ones but they are supported by ELV out of the box.