Solar Heating enquiry

[Robert Tyrrell]

I have a job thi week coming that requires the replacement of a UVDHW cylinder (I am G3 registered), but it turns out that its connected to a solar heating panel.
My question is can anyone tell me, definitively, what the fluid in the system is likely to be?
The system is around 8 years old (possibly more but the owner doesn't actually know) and I need to disconnect the system from the cylinder in order to replace it so I'd like to know what I'm going to be dealing with.
BTW - didn't know that it was a solar system until today as I couldn't really get a good look when I visited before and greed to do the job.
My customer has already bought the pre-plumbed, Solar compatible, UVDHWC.

 

[ShaunCorbs]

You can't do it mate sorry needs special equipment to fill

 

[townfanjon]

As Shaun say , special filling machine required , you could try hire one . If the HTF is 8 years old its ready for changing anyway .

 

[mfgs]

Is there no one on here near you who could help out?

 

[oz-plumber]

Depends on the system.

Does the cylinder have a separate coil in it for the solar?
If so, it probably contains glycol. Either operating on thermosyphon or by a pump triggered by a sensor

If it doesn't have a separate coil it will be the potable water going through the panels, triggered by sensor / pump

 

[oz-plumber]

Double post

 

[Robert Tyrrell]

Thanks guys - it looks as though there's a separate coil so I think that I'll have to pass on this one unless I can find someone else to do the solar bit.
I did have someone I've known for a while lined up but he's not answering the phone now.

 

[oz-plumber]

What's the issue in doing it?

It's not overly difficult in adding a glycol / water solution to the solar system.

Do you guys need a special licence for that?

 

[ShaunCorbs]

What's the issue in doing it?

It's not overly difficult in adding a glycol / water solution to the solar system.

Do you guys need a special licence for that?

Yea separate qualification also the system will need a service if it hasn't had one before