Truma valve

[Scotia]

A friend of mine just purchased a Burstner T-star 680 and when looking around it I noticed a pair of molegrips clamped to the top of what looks like a dump valve. Can anyone confirm this is what the valve is and I presume its a quick fix for a faulty valve.

 

[1807truckman]

Think it's a way to stop it dumping the water when the temperature drops, on the Hymer I had it dumped the water while I was on my way to a race meeting in March and the temperature wasn't down to close to freezing.

 

[Scotia]

Think it's a way to stop it dumping the water when the temperature drops, on the Hymer I had it dumped the water while I was on my way to a race meeting in March and the temperature wasn't down to close to freezing.

I'll get him to remove them and see what happens then.

 

[Rod]

A friend of mine just purchased a Burstner T-star 680 and when looking around it I noticed a pair of molegrips clamped to the top of what looks like a dump valve. Can anyone confirm this is what the valve is and I presume its a quick fix for a faulty valve.View attachment 101633View attachment 101634

Strange but he seems to have 2 dump valves in the picture. The automatic temperature one and a manual one are they both still connected to the pipe work?

 

[Scotia]

Strange but he seems to have 2 dump valves in the picture. The automatic temperature one and a manual one are they both still connected to the pipe work?

Not sure I have not seen a truma system before.

 

[Okta]

I had a frost dump valve like that on one of my earlier motorhomes. I used a thick cable tie to stop it dumping at the wrong time but the mini-mole grip looks easier. The newer Truma frost dump valves are less prone to premature ejac…, no wrong word, dumping.

 

[mistericeman]

Truma Frost protection valve

 

[Okta]

Truma Frost protection valve

That is the newer (improved) version.

 

[maingate]

Strange but he seems to have 2 dump valves in the picture. The automatic temperature one and a manual one are they both still connected to the pipe work?

If you mean the yellow manual dump valve, that is the hot water drain down from the boiler and all hot water pipes. There should also be one for the cold water pipes.

 

[Snapster]

If you mean the yellow manual dump valve, that is the hot water drain down from the boiler and all hot water pipes. There should also be one for the cold water pipes.

We have the same yellow tap next to the dump valve in our Burstner. Cold water is emptied from the tank itself using a two stage drain tap.

 

[colinm]

Truma Frost protection valve

That's the newer type valve, the one in OP appears to be the older electro mechanical one, putting a clothes peg to stop it opening was the normal tip.

 

[Scotia]

It's not the drain down yellow lever it's the molegrips on top of the valve.

 

[Tezza33]

I took all the electronic bits out of my dump valve, now it is just a manual one, they don't just dump the water when the temp drops below 8deg, if you switch the leisure battery off it also dumps the water

 

[Phantom]

I think they are set to operate at about 4 degrees c, they drain the boiler and your fresh watertank. There is a groove in which an R clip makes for a tidier solution to involuntary draining.

 

[Sharon the Cat]

We used to have one and it drove us mad. A clothes peg is a good alternative to the mole-grips.

 

[wildebus]

I took all the electronic bits out of my dump valve, now it is just a manual one, they don't just dump the water when the temp drops below 8deg, if you switch the leisure battery off it also dumps the water

really? that is a bloody awful bit of design!

I think if I had one of those I would disable it as well!!

 

[Okta]

really? that is a bloody awful bit of design!

I think if I had one of those I would disable it as well!!

I guess that is why Truma replaced it with the non-electric version. Possibly better to have the water dumped occasionally than to permanently disable it and have the boiler freeze up, which would be a very expensive.