PRV on W/B Greenstar 28i Junior

[leelister6]

Got a customer with a constantly leaking PRV. Just had a look through the manual and it says the hydraulic block has to be removed to replace! Has anyone done one of these and can it be changed without stripping half the boiler out?!

 

[Nostrum]

Gotta love Worcester

 

[jtsplumbing]

No its a real pain in the A last one we did it was quicker to lift boiler off wall.

 

[buckley plumb]

Got a customer with a constantly leaking PRV. Just had a look through the manual and it says the hydraulic block has to be removed to replace! Has anyone done one of these and can it be changed without stripping half the boiler out?!

went on the worcester one day course and they said it was possible - even let us do one in the training van - but i am sure theres must have been moded in some way as the one i did on a boiler a few months later was a right pain - i ended up chiseling the plaster off the wall behind to give me space to remove the valve.

 

[villa_tom]

It's easier to drop the boiler off the wall, if its possible. Taking the hydro block out just causes loads of leaks. I've done a couple of these and just dropped the boiler off the wall and changed that way.

 

[Roger Welton]

It is a pain, I still cant believe they ever though it was a good place to put it.

 

[tamz]

If the pipes are not rising, you can get your hand up the back if you cut and disconnect the cold. Quicker than lifting it off.
A stupid place to put them tho.

 

[Millsy 82]

Undo the nuts at the bottom undo the screws on the flue pull the bottom out and swap it. Not the easiest but worcester do like to make prv's a pain I think its the 240 who the hell thought of that.

 

[julesverne]

not done this before. but read on another post to drill out the rivets from underneath and take the bottom plate off and change it that way and once done rivet it back up.

 

[mountainman]

not done this before. but read on another post to drill out the rivets from underneath and take the bottom plate off and change it that way and once done rivet it back up.

Sounds like a plan to me!

 

[Kev the gas]

Im fitting a new pump to one of these on Thursday, I have ordered the pump kit including Aav and a prv .

Not a boiler I fitted, but was involved in the design of the system, the customer a building surveyor added his thoughts/input.m (he spoke to someone who said a system boiler can take approx 16 rads without the need for an additional expansion vessel)

After the builder went through the gas main, water main and then the telephone lines I sent the customer a nice letter and said Im out !!!!!!!

The builder got his own men in and since then has become a bit of a cash cow for me :happybday:.

I will try and take a few pics of the job as I do it and look at the prv change method, sounds a bit too easy, sometimes the best way are !

Kev.

 

[arran197]

I took the block out to change one. Easy enough to do, just make sure you either replace the main flow and return seals or take them out, clean them and use plenty of silicon grease. I was talking to another engineer and he said he cuts the bottom plate and bends it out the way.

 

[fubar1000]

I changed a condenses trap on 1 of these about a week a-go, now the customer phoned yesterday saying water dripping from PRV & pressure has gone right round in to the red. Was kind of looking forward to the job, but not now lol....