Can you adjust chilled water temp on a Condaria aircon unit?

[jrudge]

[QUOTE

@jrudge: I'm intrigued by the concept of pumping air into a steering system!
Since I suppose it ain't fully pneumatic, is there an expansion tank to keep the oil circuit at the desired pressure?[/QUOTE]

Someone will be along in a minute with the model number of the unit etc - but I guess there must be. There is a schrader valve on it and a gauge with in instruction to pump to 20psi ( as i recall) . It makes no practical difference if it is at zero or 20 psi ( as in it works either way) but there must be a reason !

 

[MapisM]

All I can say is that on my unit there is a pressure gauge marked in mH2O units with red marks at min 5 and max 20. In the past I have tried to keep the pressure midway between these points but Edd told me to keep the pressure close to max 20 which I have now done. Like you I am concerned about topping up the system with freshwater because that dilutes the antifreeze mix and presumably reduces the cooling performance of the system (or is the antifreeze added only to prevent freezing?)

Weird gauge scale.
Aside from not having any min/max marks (which would make sense to have, actually), my pressure gauge has a twin scale (bar+psi), which I suppose can mean something for most EU+US boaters.
Makes me wonder where on earth folks are used to reason in terms of mH2O... Not that it makes any difference, of course.

As far as I remember, in my chiller the pressure has always been around 0.5 bar, i.e. practically the same of where your min red mark is.
But in spite of that, it always worked just fine.
So, I don't think I'm going to top it up and increase the pressure anywhere near 2 bars, which is a big difference indeed.
Not because I don't trust what this Edd guy told you, but as the old saying goes, if it ain't broke...

Re. antifreeze, I have the ultimate solution: I just keep the boat where antifreeze is totally unnecessary!

 

[Deleted User YDKXO]

Weird gauge scale.
Aside from not having any min/max marks (which would make sense to have, actually), my pressure gauge has a twin scale (bar+psi), which I suppose can mean something for most EU+US boaters.
Makes me wonder where on earth folks are used to reason in terms of mH2O... Not that it makes any difference, of course.
:

I think you answered your own question. In the USA they use psi. In Europe they use bar (except the UK where we use both!). So mH2O should make sense to everybody. Yes for a couple of years I did not even know you could add water to the chilled water circuit and the pressure in my system was 0.5bar (5 mH2O) or lower. Having raised the pressure to 2 bar (20 mH2O) I can feel a bit of a difference but not much so I dont think it makes a huge difference