Why do we need pressurised systems?
Having had a second occasion where the system pressure for the heat pump dropped to zero (under investigation at present) I go to wondering:
Why do we need a pressurised system in the first place? I have always assumed that a positive pressure is used to ensure a constant supply of water to the pump(s) thus reducing air bubbles which would be purged from the system during circulation and possibly also to avoid risk of cavitation in the pump impellers.
Have I summed it up correctly or am I nowhere near the truth - is there something else I have not thought of perhaps?
Curious Toodles.
Toodles, he heats his home with cold draughts and cooks his food with magnets.
@iaack I enquired of Wattson and the reply was very much along the lines of that which I surmised Holmes.
Toodles, he heats his home with cold draughts and cooks his food with magnets.
Currently viewing this topic 2 guests.
Recently viewed by users: JamesPa 34 minutes ago.
- 26 Forums
- 2,118 Topics
- 46.6 K Posts
- 69 Online
- 4,523 Members
Latest Posts
-
If you don't need your trvs (and you shouldnt) you can...
By JamesPa , 38 minutes ago
-
RE: My misgivings about installing ASHP and solar panels via the ECO4 scheme...
@dwynwen, I’m honestly lost for words. What you’ve been...
By Mars , 44 minutes ago
-
-
RE: Replacing Refrigerant on Mitsubishi Heat Pump
@davidalgarve It should just be recovered by both servi...
By dgclimatecontrol , 17 hours ago
-
RE: Who's your electricity provider and what's your tariff?
Aggregators have been recognised for many years, and it...
By Transparent , 17 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
Great news I edited my previous post (probably af...
By JamesPa , 21 hours ago
-
RE: Double or Triple Glazed Windows?
@toodles Glad to hear things are progressing well for y...
By TRBob , 21 hours ago
-
RE: 300 Liter Tank - Do I have to heat it all?
I agree with @morgan. You can turn down the target t...
By JamesPa , 23 hours ago
-
How to waste energy (and time) playing with AI.
A friend of mine who subscribes to an AI service was ex...
By Toodles , 2 days ago
-
RE: Heat Pump Books For Beginners – Bodge Buster & From Zero To Heat Pump Hero
@topher you’re more than welcome to, yes. I’ll send you...
By Mars , 2 days ago
-
RE: Fitting new shower valve ..........
I’ve never taken a chance when fiddling and changing ou...
By Mars , 2 days ago
-
You should contact the council and report the unsatisfa...
By JamesPa , 3 days ago
-
RE: Benefits of an extra horizontal loop for GSHP
I would deffo install an additional slinky run, especia...
By Transparent , 3 days ago
-
RE: Say hello and introduce yourself
@editor fab - thanks Mars, and keep up the great work o...
By normpang , 3 days ago
-
RE: Compressor and Evaporator Stratification
@trebor12345 So I think the 1st zigzag section shows so...
By ASHP-BOBBA , 4 days ago
-
RE: Is this just haze or something more?
@majordennisbloodnok I was giving a talk to primary sch...
By Toodles , 4 days ago
-
RE: Tesla Powerwall – More of a ‘Luxury’ Than an ROI Winner!
We had our Tesla Powerwall 3 (and Gateway) installed ea...
By Old_Scientist , 4 days ago
-
Indeed. With a battery its presumably the battery con...
By JamesPa , 4 days ago
-
RE: No-code, plug-and-play monitoring for your heat pump
To update an ESP device using ESPHome in Home Assistant...
By Grantmethestrength , 5 days ago