Noisy return

[marshian]

Just looked at the instructions - not sure there is an orientation requirement on the Magnaclean but I will look carefully at the body when I'm home tonight

 

[John Carroll]

Are the vent and cold feed dedicated only as a vent and cold feed?, ie, there are no returns (or flows!) teed in anywhere to either of them.

My Vent from the boiler on the ground floor right up to the HW cylinder  (on the landing) have all the flows teed off from it.

Edited 8 hours ago by John Carroll

[marshian]

4 hours ago, John Carroll said:

Are the vent and cold feed dedicated only as a vent and cold feed?, ie, there are no returns (or flows!) teed in anywhere to either of them.

My Vent from the boiler on the ground floor right up to the HW cylinder  (on the landing) have all the flows teed off from it.

 

Yes to both

 

The F&E tank is only feeding the CH Circuit - nothing is T'd off it - there is one isolation gate valve in the line but it's fully open

 

The vent for the CH circuit is vented to above the F&E tank

 

There is another vent from the HW cylinder that is vented to above the Cold Water Store Tank but there is no connection to it.

 

The pump is installed the correct way round and as I thought the magnaclean filter has no flow markings and according to the destructions can be installed either way up

 

The distance from the bottom T where the Vent is to the top of the pump gate valve is 58 cm it's as compact as it can be

 

From the pump to bottom of the F&E tank is exactly 3.4 M

 

The vent pipe is at it's highest point before it comes down to just above the surface of the header tank water is another 0.6 M

 

Huge apologies to @Little Clanger for the threadjacking

 

[John Carroll]

45 minutes ago, marshian said:

 

Yes to both

 

The F&E tank is only feeding the CH Circuit - nothing is T'd off it - there is one isolation gate valve in the line but it's fully open

 

 

Huge apologies to @Little Clanger for the threadjacking

 

 

The photo shows either a mid position valve or a diverter valve (with the adjustable spanner), why/how  is the F&E cistern only feeding the CH circuit, its teed into the pump inlet?, and whats the other pipe for?

Edited 2 hours ago by John Carroll

[marshian]

1 hour ago, John Carroll said:

 

The photo shows either a mid position valve or a diverter valve (with the adjustable spanner), why/how  is the F&E cistern only feeding the CH circuit, its teed into the pump inlet?, and whats the other pipe for?

Oh that is such a long story I don't want to go there...........

 

Set up was a Y plan with a 3 position valve HW HW&CH and CH only

 

The whole system was controlled by a sunvic set up and when the 3 postion valve failed I converted to a drayton - however that was incompatible with the wiring centre and so an adjustable spanner was deployed to switch from HW to CH and

 

Nope I'll stop there.................

 

The pipe you want to know where it's going was to a manual vent - I've always had an issue with air in the system since we bought the place in 1991 it used to accumulate over time so I put a stupidly long leg of 15mm copper pipe up the side of the airing cupboard and just used to bleed it every month...................

[marshian]

22 minutes ago, marshian said:

The pipe you want to know where it's going was to a manual vent - I've always had an issue with air in the system since we bought the place in 1991 it used to accumulate over time so I put a stupidly long leg of 15mm copper pipe up the side of the airing cupboard and just used to bleed it every month...................

 

I guess this means whatever problem I have it's always been there - I just put something in that masked the issue

 

Now it's set up as X plan and has bottle vents on both HW and CH legs* they aren't as effective removing air as a 1.5 M length of 15mm copper right above the pump

 

*sighs