Alde touchscreen brand new van

[Jcloughie]

I have the inline pump on mine.

I believe the header pump is not being installed on new vans possibly for a couple of years now.

The header tank pump works OK, but the blades will foul if fitted wrong or too tight. Also they are noisy at night. I fitted one of these to slow it down and it is much improved.

John

 

[JTQ]

I fitted one of these to slow it down and it is much improved.

Which of "these", did you use John, please?

That link opened a whole page of versions for me.

 

[Buckman]

The battery pack is two AA's in a holder inside the wardrobe above the controller.

I too found the pump running to fast such that it would wake me at night.
If you have any problem with the screen being bright at night (as it is in our Unicorn S4 Seville), set it to invert - that is white text on a black background, although it is the other way around when you select any other screen.

Our control panel screen goes blank after a couple of minutes as that is the way we have set it to dark.

 

[RogerL]

I believe the header pump is not being installed on new vans possibly for a couple of years now.

The header tank pump works OK, but the blades will foul if fitted wrong or too tight. Also they are noisy at night. I fitted one of these to slow it down and it is much improved.

John

During one of it's services, my AWS mobile technician "installed" a clothes peg between the motor and the housing - this lifts the motor slightly and stops it vibrating.

I think the night time noise is down to which wall the header is mounted on - ours is on an outside wall and is virtually silent within the caravan but can be heard standing outside - if it's mounted on an internal furniture wall I imagine it would be much more noticeable.

I bought a PWM speed controller but haven't got round to fitting it yet.

 

[Jcloughie]

Which of "these", did you use John, please?

That link opened a whole page of versions for me.

Virtually any of them would do the job, but any which have a reverse switch is unessessary. I bought mine a couple of years ago from China. So my exact one is not there. But is resembles this one.


12 volt dc with connections as in the picture. I just cut the wires feeding the pump and attached them to the unit which I put on the wall adjacent to the header tank.

To operate, I turn the pump down as much as possible but while the top of the towel rail will still get hot. That is about half normal speed. Much, much quieter.

John

 

[Jcloughie]

During one of it's services, my AWS mobile technician "installed" a clothes peg between the motor and the housing - this lifts the motor slightly and stops it vibrating.

I think the night time noise is down to which wall the header is mounted on - ours is on an outside wall and is virtually silent within the caravan but can be heard standing outside - if it's mounted on an internal furniture wall I imagine it would be much more noticeable.

I bought a PWM speed controller but haven't got round to fitting it yet.

Mine is also on an outside wall but in the wardrobe and just a couple of feet from my sleeping head. Fitting the controller was enough to prevent me from being woken by the pump. First I tried re-mounting the header tank on an insulating material.

John

 

[JTQ]

Our Alde system's in-line circulating pump is not one of their products, but sourced by Hymer from elsewhere. I have not a clue if it is brushed or brushless, there are no telltale brush holders, nor meaningful markings.

So basically, I don't know its technology, but from its tone know it runs at about the same speed, that only changing slightly for a few seconds as the fluid speed accelerates from static up to running rate.

Not knowing the technology, nor much about DC motor technology myself, can I quiz the more knowledgeable, if it is still likely to be safely suited for speed variation control with the PWM based devices John has identified? If it is indeed brushless as I suspect, with a preset speed via PWM inbuilt, will I do harm? The slight note change could be no more than fluid flow generated tones, for all I know.

It can sound irritatingly too fast on nights I am sensitive to that, and it would be nice to explore if adequate thermal performance could still be achieved with it set to run slower; it is not that these days we push the performance in bitterly cold weather; we stay at home.

Any DC motor expertise out there, please?

 

[Jcloughie]

Our Alde system's in-line circulating pump is not one of their products, but sourced by Hymer from elsewhere. I have not a clue if it is brushed or brushless, there are no telltale brush holders, nor meaningful markings.

So basically, I don't know its technology, but from its tone know it runs at about the same speed, that only changing slightly for a few seconds as the fluid speed accelerates from static up to running rate.

Not knowing the technology, nor much about DC motor technology myself, can I quiz the more knowledgeable, if it is still likely to be safely suited for speed variation control with the PWM based devices John has identified? If it is indeed brushless as I suspect, with a preset speed via PWM inbuilt, will I do harm? The slight note change could be no more than fluid flow generated tones, for all I know.

It can sound irritatingly too fast on nights I am sensitive to that, and it would be nice to explore if adequate thermal performance could still be achieved with it set to run slower; it is not that these days we push the performance in bitterly cold weather; we stay at home.

Any DC motor expertise out there, please?

A little research shows that you ask a very pertinent question. The description on the pmw’sI listed before do not seem to differentiate, but, although most of the web sites I found were beyond my limited understanding, I did find this statement.

“Different types of speed controls are required for brushed DC motors and brushless DC motors. A brushed motor can have its speed controlled by varying the voltage on its armature. (Industrially, motors with electromagnet field windings instead of permanent magnets can also have their speed controlled by adjusting the strength of the motor field current.) A brushless motor requires a different operating principle. The speed of the motor is varied by adjusting the timing of pulses of current delivered to the several windings of the motor”.

It is from here.

John