Welcome To Ask The Trades!

Quote: People never say 'It's only a game' when they're winning.
  HomeHelpSearchLoginRegisterPM to admin  
 
Page Index Toggle Pages: 1
Send Topic Print
Potterton Promax Ultra - Pressure (Read 781 times)
Sandy
Full Member
***
Offline


Posts: 182
Total Thanks: 0
For This Post: 0


Gender: male

Re: Potterton Promax Ultra - Pressure
Reply #4 - Oct 4th, 2017, 11:53am
 
No. The dial gauge is housed within the boiler unit, right at the very bottom so lower than the rest of the unit by just a few inches, certainly not feet/metres.

When I've looked at the dial again last night, it's an odd scale. The scale doesn't read like 1.0, 1.1, 1.2 etc as you'd see on a usual "clock" type. 1 bar, 2 bar is represented by some colour coded scale that takes up a lot of the dial. It's not clear to read if the needle is at the lower end of 1 bar, or higher end.

I appreciate it doesn't make so much sense. I'll take a photo later and post it and you'll catch my drift.
Back to top
 
Thank User For This Post  
IP Logged
 
thescruff
Global Moderator
Trade Member
Author
*****
Offline

Who said plumbing was
easy.
Posts: 5795
Total Thanks: 97
For This Post: 0


Gender: male

Trade: Plumber



Re: Potterton Promax Ultra - Pressure
Reply #3 - Oct 4th, 2017, 8:34am
 
Just a quick thought Sandy.

Is the boiler higher than the visual gauge, say a floor lower, as 0.4 bar could indicate 4m height difference
Back to top
 
Thank User For This Post View members image gallery  
IP Logged
 
Sandy
Full Member
***
Offline


Posts: 182
Total Thanks: 0
For This Post: 0


Gender: male

Re: Potterton Promax Ultra - Pressure
Reply #2 - Oct 3rd, 2017, 6:35pm
 
Ok, thanks. Think I've got it.

Cheers.
Back to top
 
Thank User For This Post  
IP Logged
 
thescruff
Global Moderator
Trade Member
Author
*****
Offline

Who said plumbing was
easy.
Posts: 5795
Total Thanks: 97
For This Post: 0


Gender: male

Trade: Plumber



Re: Potterton Promax Ultra - Pressure
Reply #1 - Oct 3rd, 2017, 6:21pm
 
You need to set it 1.2bar ish with the boiler and system cold.

Once you have turned it on the pressure will rise, an average 0.5-6bar, but depends on lots of variants.

What you don't want is the pressure heading much higher than 2-2.5 bar.

set the digital reading around a bar if you have problems, if the boiler is working ok, follow the visual dial
Back to top
« Last Edit: Oct 3rd, 2017, 6:25pm by thescruff »  
Thank User For This Post View members image gallery  
IP Logged
 
Sandy
Full Member
***
Offline


Posts: 182
Total Thanks: 0
For This Post: 0


Gender: male

Potterton Promax Ultra - Pressure
Oct 3rd, 2017, 5:12pm
 
Hi all,

I need to bleed a radiator in my CH system and may need to top up the water. The user guide I downloaded shows a way to establish the pressure either by a visible dial, or selecting an option on the digital readout. Heating hasn't been on for a few days, to the pressure is pretty static, however, the visual dial shows a pressure of approx 1.2/1.5bar, but when I checked the digital readout, it shows a pressure of 0.8 bar.

Which reading is likely to be more accurate?

thanks.

Back to top
 
Thank User For This Post  
IP Logged
 
Page Index Toggle Pages: 1
Send Topic Print