Question for Sir James

[K.H]

Trying to work out what goes where on one of your water heated processors, i can see the basic circuit, drain and bleed valve, but i was wondering what the other pipe does that comes off the circuit? in this pic the pipe is in the centre with a brass compression fitting on it



And do you run these with an inhibitor or just water?

[Jamesrl]

Wochyoo doin'wiv one of me double skinned jobbies?

Anywany 'n anyway that there pipe should have a small header tank on it and yes a rust inhibitor is a good idea.

[K.H]

Wochyoo doin'wiv one of me double skinned jobbies?

Anywany 'n anyway that there pipe should have a small header tank on it and yes a rust inhibitor is a good idea.

Cheers Jim, i will be using this processor now, its part of the set up from Bristol way that was advertised on the VOD a couple of years back, the guy who bought it never used it, so i bought this tank off him.
Thinking about the inhibitor, would blue antifreeze be ok?, i believe its an inhibitor and as all my stuff is outside i will need to stop it freezing

[Jamesrl]

Anti-freeze should be fine as most modern ones have rust inhibitors built in.

From the picture is the CH pump shaft vertical, if it is move it to the horizontal position.

As an update add a PID to the heater tube for closer control of the temperature, the thermostat in the immersion is too slow and at higher temperatures there's a possibility of a boil and very hot water shooting out of the header.

[K.H]

S,ok, its orizontal

[K.H]

Just thought of another couple of questions Jim, will it need bleeding and whats the recommended oil capacity? 

[knighty]

why does the pump need to be horizontal ?  I'd have thought vertical would be better ?

(so small bubbles etc... work there way out naturally)

[1958steveflying]

I think he means the motor shaft has to be horizontal.

[Jamesrl]

Just thought of another couple of questions Jim, will it need bleeding and whats the recommended oil capacity? 

Yep, bleebing is essential as in any heating system.

The short vertical pipe with a little cap to the right of the immersion is the bleed point.

It's a standard 180ltr reactor.

BTW you're the forth owner, it's been to Glasgow, Bristol, RM's and now yours.

[Jamesrl]

why does the pump need to be horizontal ?  I'd have thought vertical would be better ?

(so small bubbles etc... work there way out naturally)

Keeping the motor shaft horizontal is recommended by the manufacturers to increase bearing life, vertical and it seriously shortens service life.

[K.H]

OK, ive fitted a header tank, is it a sealed system? at the mo its unsealed and i get a lot of pulsing of the water, air in the system?

[Jamesrl]

OK, ive fitted a header tank, is it a sealed system? at the mo its unsealed and i get a lot of pulsing of the water, air in the system?

No it's not sealed, it works the same way as heating systems that have a header in the loft.

Yep, sounds like air, I lean the tank back so the bleed cap is at the highest point then vent off any air, don't forget to bleed the ch pump, you may have to repeat the bleed off to rid the last drop of air.

HTH.

[K.H]

Cheers James

[K.H]

whats the water capacity on one of these Jim?

[Jamesrl]

whats the water capacity on one of these Jim?

iirc it's around 10ltr.