How to Drain / Refill my Central Heating ??

[sebsky777]

Very Good Morning from soaking wet London,
Would any one be able to look at photo attached to help me out a bit, how do I drain and refill this system, its New Build , CH , Heat Exchanger, no bleed valves and one very trigger happy amateur (utter) plumber to be.
Cheers have a goooood Sunday
Seb

 

[AMGasServices]

What’s behind the boxing ? Any pictures ?

Also any pictures of the boiler and the heat exchanger in order to figure what type of system you have.

 

[ShaunCorbs]

What’s behind the boxing ? Any pictures ?

Also any pictures of the boiler and the heat exchanger in order to figure what type of system you have.

No boiler no cylinder

It's a hiu

Easiest way is to drain via a rad

But your missing the filling loop unless you have it ?

 

[sebsky777]

No boiler no cylinder

It's a hiu

Easiest way is to drain via a rad

But your missing the filling loop unless you have it ?

No boiler no cylinder

It's a hiu

Easiest way is to drain via a rad

But your missing the filling loop unless you have it ?

Hi Shaun
Correct no boiler no cylinder,
As I understand , switch boiler off , open bleed valve and drain the rad ,Right/
How do I refill system afterwards?
Sorry for being a ****

 

[sebsky777]

A

Hi Shaun
Correct no boiler no cylinder,
As I understand , switch boiler off , open bleed valve and drain the rad ,Right/
How do I refill system afterwards?
Sorry for being a ****

And filling loop is a £10 in Screwfix , just not sure where to connect for filling with water.

Thank you again

 

[ShaunCorbs]

Would need to see behind the cover to see what the gauge does

 

[AMGasServices]

What a hiu ? Don’t thibk I’ve come across this kind of system before.

No boiler no cylinder

It's a hiu

Easiest way is to drain via a rad

But your missing the filling loop unless you have it ?

 

[sebsky777]

What a hiu ? Don’t thibk I’ve come across this kind of system before.

Communal closed loop supplies warm water to flats,heat exchanger or hiu warms up my closed loop,Central Heating brings it up to higher temp, thats my understanding.Two separate loops one communal one is my central heating.

 

[AMGasServices]

Communal closed loop supplies warm water to flats,heat exchanger or hiu warms up my closed loop,Central Heating brings it up to higher temp, thats my understanding.Two separate loops one communal one is my central heating.

Thank you.

Similar to a ground source system. 1 loop is the ground array (similar to your communal supply of warm water) shoebox transfers the heat as you have heat exchanger and finally the internal loop to heat you rads and hot water.

 

[sebsky777]

Thank you.

Similar to a ground source system. 1 loop is the ground array (similar to your communal supply of warm water) shoebox transfers the heat as you have heat exchanger and finally the internal loop to heat you rads and hot water.

Thank you.

Similar to a ground source system. 1 loop is the ground array (similar to your communal supply of warm water) shoebox transfers the heat as you have heat exchanger and finally the internal loop to heat you rads and hot water.

So Chaps bit of advice from bigger than mine brain please, what to do to drain system, boiler off and spanners on , open rad and let it bleed?
and more importantly what to do do refill system?
Is it gonna be filling loop connected between pipe with the pressure gauge and .... thats where Im stuck. GREEN tap valve (second from the right on the pic) or blue tap valve third from the right on the pic.
Any ideas highly appreciated.
Cheers Seb

 

[ShaunCorbs]

I think but can't confirm until you remove the cover gauge might be sys pressure or cold mains

 

[sebsky777]

I think but can't confirm until you remove the cover gauge might be sys pressure or cold mains

Hi Shaun I will try to take a pic without cover tonight, saying that the pipe with gauge(the clock) shows 1.6 bars Im almost certain that this is system inlet. But I have not clue where to take water from

 

[Scott_D]

I believe you have f&r from the communal boiler
Heating out to your rads
Cold in an hot out

It's like a combi but uses high temp heating water not gas

 

[sebsky777]

I believe you have f&r from the communal boiler
Heating out to your rads
Cold in an hot out

It's like a combi but uses high temp heating water not gas

 

[sebsky777]

Sorry mate what does it mean?
I am controlling my heating and been told that the flat has separate system.
How do i refill it is my question

 

[Scott_D]

Sorry mate what does it mean?
I am controlling my heating and been told that the flat has separate system.
How do i refill it is my question

Your flats hiu controls your heating and hot water
You have a constant heigh temp flow and return to the communal heating supply

 

[sebsky777]

Your flats hiu controls your heating and hot water
You have a constant heigh temp flow and return to the communal heating supply

hi Scott I got that , apparently there is two circus one communal u mentioned and on in the flat central heating lets call it.
I have been told by eon to go ahead and change the radiators as every plumber will know how to do it.













above and see if you can establish which

 

[sebsky777]

hi Scott I got that , apparently there is two circus one communal u mentioned and on in the flat central heating lets call it.
I have been told by eon to go ahead and change the radiators as every plumber will know how to do it.
by looking at the pic would you be able to say how do i drain and refil my circuit.

 

[ShaunCorbs]

May I ask why your wanting to change the rads ?

 

[sebsky777]

May I ask why your wanting to change the rads ?

Because at present rad is smack bang in the middle of the wall looks just wrong and it doesnt do much to warm the room
Do you know how to drain this system Scott?

 

[ShaunCorbs]

Because at present rad is smack bang in the middle of the wall looks just wrong and it doesnt do much to warm the room
Do you know how to drain this system Scott?

Yes as I've said drain it via the rad valve and a tray / bucket

 

[sebsky777]

Yes as I've said drain it via the rad valve and a tray / bucket

Thats great I thought u saying it cant be done,
Thank you
If u have a min could you look at the pic o top of the thread
Im not sure how to refill
I mean there is two options second pipe from right green tap or third blue tap
I hope it makes sense im sorry for being annoying but as u probably realise not a plumber.. .not even close
Cheers

 

[Scott_D]

Are you doing the job yourself?

 

[ShaunCorbs]

Thats great I thought u saying it cant be done,
Thank you
If u have a min could you look at the pic o top of the thread
Im not sure how to refill
I mean there is two options second pipe from right green tap or third blue tap
I hope it makes sense im sorry for being annoying but as u probably realise not a plumber.. .not even close
Cheers

I've said before I need a pic without the case on

 

[Tony]

Hmmmmmm……… whats behind the box for clearity