Ravenheat 820/20 T PCB question?

[stephen101264]

I have a plumbing question, any replies gratefully received.

I have a Ravenheat 820/20 T.

On the PCB is a single dial with an opening for a posidrive screwdriver, it turns both clockwise and anticlockwise. It has printed next to it ADJ. HEAT REG. RISC. What is this for?

Even though the users hot water control stat on the front of the machine is set on it's lowest setting the hot water comes out of the taps red hot.

Does this dial on the PCB control base temperature of the hot water? if yes which way do I turn it to lower temperature...clockwise or anticlockwise?

If it does not control hot water then what does it do?

Thank you
Stephen

 

[mrgas]

Its nothing to do with your hot water.
Its for range rating the heating.
You have a problem with your boiler I recommend getting an engineer in to check gas rates

 

[stephen101264]

Thank you for the reply.

What is range heating?