ideal mexico 60

[jamia]

just moved into house with a floor standing boiler on a y plan danfoss hva3 valve the problem I,m having is when I select hw only the c h comes on also, the mid position valve has just been changed to try to rectified the problem ,it didn't,the mi states that the ch can not be selected independently ,but surly hw can, can some one put be straight

 

[Ermintrude]

Boiler is a rock! Never brake and really hard to lift. Yes sounds like u have a wiring issue. Probably best checking it all from basics. DHW will work independently no probs .

 

[jamia]

Boiler is a rock! Never brake and really hard to lift. Yes sounds like u have a wiring issue. Probably best checking it all from basics. DHW will work independently no probs .

the three port has four wires,is this correct or should it be five

 

[Ermintrude]

Depends which 3 port it is.

 

[stevetheplumber]

thats the way its ment to work the clock is set to give hot water only and heating and hot water together old w plan three way has less wires can be upgraded but will involve some wirlng from cylinder to boiler normally and depending on how its piped now maybe some plumbing as well as they were often systems converted from gravity

 

[jamia]

Depends which 3 port it is.

danfoss hva3

 

[jamia]

thats the way its ment to work the clock is set to give hot water only and heating and hot water together old w plan three way has less wires can be upgraded but will involve some wirlng from cylinder to boiler normally and depending on how its piped now maybe some plumbing as well as they were often systems converted from gravity

it has been a fully pumped system from day one and set up as a y plan,but when hot water is called for you get both.

 

[Ermintrude]

it has been a fully pumped system from day one and set up as a y plan,but when hot water is called for you get both.

Sounds like wiring fault ? Was 3 port changed ?

 

[jamia]

Sounds like wiring fault ? Was 3 port changed ?

yes, like for like

 

[SafeGasInstall]

you need a new engineer who will rewire system correctly for you

 

[SafeGasInstall]

yes, like for like

but you need a 3 port valve with 6 or 5 wires

 

[jamia]

but you need a 3 port valve with 6 or 5 wires

obviously not your thing,thanks any ways

 

[SafeGasInstall]

obviously not your thing,thanks any ways

why ??

 

[Ermintrude]

GSI knows a lot. Generally agree on most things excluding Worcester boosh! Think he's on the right trail.

 

[Ermintrude]

yes, like for like

What do the 4 wires do? One is nutral, one is earth, one is signal other is s/l ? Or is there no earth ?

 

[SafeGasInstall]

What do the 4 wires do? One is nutral, one is earth, one is signal other is s/l ? Or is there no earth ?

no earth on danfoss

 

[Ermintrude]

Couldn't remember. Only fit Honeywell and always check back wiring when changing so don't remember what wire does what on which item. But hw on, hw off, ch, n so no sl or no hw on??

 

[Ermintrude]

no earth on danfoss

Wish it was no danfoss on this earth!

 

[tamz]

No earth on a danfoss. Is a standard 3 port mid pos. Get someone in who knows what they are doing.

 

[SafeGasInstall]

honeywell for me too , but discussion of wiring on open forum no

job is simple and will take a heating engineer about 2h to rewire it all and fit you a honeywell valve

 

[SafeGasInstall]

Tom how you mate ?

 

[Ermintrude]

honeywell for me too , but discussion of wiring on open forum no

job is simple and will take a heating engineer about 2h to rewire it all and fit you a honeywell valve

It's obviously a DIY job gone wrong so will just muddle on.

 

[tamz]

Same sh on a different day Stan

 

[SafeGasInstall]

It's obviously a DIY job gone wrong so will just muddle on.

you very well read my mind

 

[SafeGasInstall]

ha ha ha Tom

 

[tamz]

It's probably been like that since it was fitted most likely wired by an electrician :wink:

 

[Ermintrude]

Post 14

 

[SafeGasInstall]

and I bet the op is electrician

 

[SafeGasInstall]

Post 14

its SGI and I am stan

 

[Ermintrude]

Intruder alarm installer come DIY ?