Hi all having problems with this heating system will hw stick on because of power on terminal? | on ElectriciansForums
Click here to remove these ads

Hi all having problems with this heating system will hw stick on because of power on terminal?

Discuss Hi all having problems with this heating system will hw stick on because of power on terminal? in the Central Heating Systems area at ElectriciansForums.net

your wiring diagram doesn't make sense to me for a 2 port valve. A 2 port valve is simply an open and shut valve. It has the following wiring
Blue - neutral
green and yellow - earth
grey - permanent live
brown - switched live from thermostat (be it C/H or Hot water)
orange - switched live out to boiler.

The valve is normally closed and opens when it gets a switched live to the brown. When it opens a micro switch inside connects grey to orange which signals the boiler to fire.

How is your myson wired at moment
 
STEPHEN MCLAUGHLIN said:
Cheers lads but there is no valve on hw (if there was it would solve it)
There is no cylinder stat either
(Called out just to put room stat on system)
Need hw only for summer when room stat isn't calling for heat
Thanks for input
Click to expand...

Still wouldn't solve it correctly, you need a zone valve to open/close the primary to the cylinder coil and a cylinder stat to regulate the temperature of the hot water. Regulating it on the boiler stat is not the way to do it.

Work with a wet pants to upgrade it to an S plan.
 
It must be gravity hot water then eg no pump and 28mm pipes

So

Hot water
Prog (hot water)
Boiler

Heating
Prog (heating)
Room stat
Pump and boiler
 

Reply to Hi all having problems with this heating system will hw stick on because of power on terminal? in the Central Heating Systems area at ElectriciansForums.net

Similar Threads

E
  • Article
Can a HW cylinder be used as primary heat source for CH only? plumbing advice
Can a HW cylinder be used as primary heat source for CH only? Hi, I would like to know if a HWC can be used as a primary heat source for a new...
Replies
0
Views
138
eric12
E
K
  • Article
Main 24HE constantly cutting out and firing back up on HW and Heating and intermittent flame failure light. plumbing advice
Main 24HE constantly cutting out and firing back up on HW and Heating and intermittent flame failure light. I am having a problem with my main...
Replies
0
Views
125
keyplayer
K
J
  • Article
Power Flushing Central Heating plumbing advice
Power Flushing Central Heating Hi, I have an old 3 story property with radiators on each floor. The radiators have become increasingly less...
Replies
0
Views
111
JBASport
J
H
  • Article
Central heating system cleaning plumbing advice
Central heating system cleaning Hi all, I have added a bottle of Fernox F3 into my towel radiator upstairs, I have run the heating for a good few...
Replies
0
Views
106
Happyharry
H
L
Could a failed HW valve cause boiler to keep running?
Depends on whether the valve in question is a two wire or four wire version. If it's four wire (not including any earth wire), then normally the...
Replies
4
Views
1K
brianmoooore
B

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top
✖
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock    No Thanks