Forums

Forums
Renewable Heating
Air Source Heat Pum...
Vaillant water pres...
 
Notifications
Clear all

Vaillant water pressure gauge vs Analogue gauge

 
Air Source Heat Pumps (ASHPs)
Last Post by JamesPa 1 day ago
2 Posts
2 Users
0 Reactions
69 Views
RSS
 jeegnesh
(@jeegnesh)
Estimable Member Member
373 kWhs
Joined: 5 months ago
Posts: 53
Topic starter 19/03/2025 3:19 pm  

So this has been the story since install but via the controller the water pressure always shows lower than the analogue gauge at the filler loop, Example ASHP is saying 1.4 bar, the analogue gauge is saying 2.2 bar

How do I know which is correct?

13.6kw Solar, 27kw Battery, 10kw Heat Pump and EV Car


   
Quote
 JamesPa
(@jamespa)
Famed Member Moderator
11314 kWhs
Veteran
Joined: 2 years ago
Posts: 2142
19/03/2025 4:55 pm  

I have the same, so equally interested in the answer. 

I think its possible that both are correct depending on where they are located in the circuit.  For example a pressure gauge immediately after the water pump will read more than a pressure gauge just before the water pump, the difference being the head required to drive the water through the system

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  



Share:

Join Us!

Heat Pump Dramas?

Thinking about installing a heat pump but unsure where to start? Already have one but it’s not performing as expected? Or are you locked in a frustrating dispute with an installer or manufacturer? We’re here to help.

✅ Pre-Installation Planning
✅ Post-Installation Troubleshooting
✅ Performance Optimisation
✅ Complaint Support (Manufacturer & Installer)

👉 Book a one-to-one consultation now.

Latest Posts

x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
Shield Security →