HONEYWELL V4043 2-PORT MV:

[RONCHAM]

By the way doitall (I like to know what's going on!) - after squirting WD40 on TRVs, why is pin lifted (no more than) 2-3mm?? Is it just to let a bit of WD40 ooze down?

 

[RONCHAM]

Hi davebgas - boiler I have is an Ideal W (RS460). Hope you don't tell me it was discontinued in 1900!!

 

[Goldberg]

Five pages.

 

[doitall]

If the pins are stuck down you need to just ease them up, however if you pull them to far they come right out (10mm) followed by a jet of water.

 

[RONCHAM]

Hi Goldberg - is that a touch of sarcasm? I doubt you'd care to be an OAP in a house getting colder by the day!!

Some of us appreciate these guys who give freely of their knowledge and expertise and endeavour to help. And it's not easy when they're conversing with a layman and not hands-on, seeing the situation for themselves.

On the other hand, if you have a useful contribution I'd be happy to hear it.

 

[RONCHAM]

Thanks doitall. All the TRVs I've looked at have a bit of "bounce" ie I've pressed them down and they've sprung back. Don't fancy pulling them though with jets of water!

 

[doitall]

Did you have the heating on when you pushed the pin in, you should be able to here it change in sound.

After the pump, and between the cylinder, is a pipe branched off that looks like a by-pass, what is the valve set at, a pic of the valve would be good.

 

[RONCHAM]

View media item 15939
I checked TRVs with system off - is the sound due to change in flow? If pin got pulled out, is it just pushed back in (surprised not retained in some way)?

 

[Goldberg]

Hi Goldberg - is that a touch of sarcasm?

No. It's despair.

I doubt you'd care to be an OAP in a house getting colder by the day!!

I would certainly care, because I'm a caring person, but I have a hunch that you didn't really mean that. For example, on Tuesday I worked until 9pm, getting several heating systems working, because I didn't want the occupants to feel cold and miserable.

Some of us appreciate these guys who give freely of their knowledge and expertise and endeavour to help. And it's not easy when they're conversing with a layman and not hands-on, seeing the situation for themselves.

I presume by the word "some" that you think I don't, but you're wrong. I know it's not easy, but there are ways to make it easier. One of them is to follow this guidance:

When you ask a question, please include the following information:

1) Boiler make / model (gas or oil)
2) What is / is not happening
3) Has ANYTHING else been done / changed recently
4) When did it (problem) start
5) When does it happen? eg, heating coming on or going off.
6) Anything else you feel may be of relevance

On the other hand, if you have a useful contribution I'd be happy to hear it.

Focussing on the basics would help. The number of pages is indicative of how well (or not) that focussing is happening. seco (particularly) has asked most of the right questions, but you've answered very few of those, and none of them with clarity.

 

[RONCHAM]

Sorry, HW TRV is set to MAX.

 

[Goldberg]

deleted

 

[RONCHAM]

Hi Goldberg - I'm glad you're a caring person, we need more of them!! On the one hand you ask for every last detail then you say focus on the basics?? I thought I'd been quite explicit and answered all questions raised and carried out the suggestions made. I've certainly covered the info you suggest apart from saying it's a gas boiler (which may be evident from model number).

 

[doitall]

I checked TRVs with system off - is the sound due to change in flow? If pin got pulled out, is it just pushed back in (surprised not retained in some way)?

Yes it is.

It wouldn't be a bad idea to turn all the working ones off as well.

If you have some movement try lightly bouncing a small hammer on the pin.

 

[Goldberg]

On the one hand you ask for every last detail then you say focus on the basics?

I haven't asked for any information at all. What I gave you was an example of a template that had been used on this site in the past. By no means is that seeking "every last detail" - for example, it doesn't request pipe layout, gauge, and number of bends and elbows for the entire system.

I thought I'd been quite explicit and answered all questions raised and carried out the suggestions made.

I really don't think that you have. You've certainly done a lot of unnecessary things, and not many of the necessary ones. I don't mean this offensively, but you're clearly a "fiddler" - this whole tangent involving the MZV being an example.

I've certainly covered the info you suggest apart from saying it's a gas boiler (which may be evident from model number).

You have heat to some radiators, and not others, so the primary problem is one of distribution of heat, not the precise category of controlling the system and when the MZV opens of doesn't open etc.

 

[RONCHAM]

View media item 15940
Perhaps slightly easier to view (albeit slightly out of focus).