Always lots of air in our CH system

[Alucard]

Hi good evening,

TheGrundfos pump arrow on the front is pointing anticlockwise so is pumping up.

I removed the Drayton 3 way mid position motor controller to check if marked A or B and it was not marked.

 

[Alucard]

Hi good evening,

TheGrundfos pump arrow on the front is pointing anticlockwise so is pumping up.

I removed the Drayton 3 way mid position motor controller to check if marked A or B and it was not marked.

See image sent. The arm is shown in the down position = Central Heating. Whin the controller moves the arm a 1/4 turn up it is in the Domestic Hot Water position.

 

[Alucard]

See second image sent, showing the 3 way connections.

 

[Alucard]

Bottom is from the pump outlet. The Left side is to the CH and the top to DHW

 

[Alucard]

Note in image 3, that the DHW is to the mid point on the cylinder to the bottom of the coil.

Hope this assists.
Thanks

 

[Alucard]

3 off images attached. Additional text to follow. If admin will allow, as there are server problems they noted.

 

[John.g]

Still looks wrongly plumbed to me, it should, IMO be like shown below.

The pump outlet might be connected to the CH

Can you confirm or not that the cold feed is teed in to where I have the labeb, if it is then definitely plumbed incorrectly.

Others might comment??

EDit: I can't post a photo either so

Can you confirm that the pipe teed into what you caal the CH pipe is the cold feed, if it is then plumbing definitely incorrect.

Will try and post photo later.

 

[John.g]

Finally able to post the attachment.

 

[Alucard]

Imags1, 2 & 3

 

[Alucard]

I can confirm that the 15mm pipe on the Left side is the F&E cold. This is T-eed into the CH 22mm pipe from the left side of the 3-way Drayton midposition valve.

The boiler feed comes through the floor to the bottom of the 3-way Drayton midposition valve.

The DHW to the cylinder coil comes from the top of the 3-way Drayton midposition valve .

How would this configuration cause the excessive air in the Central Heating system?

Thanks