Boiler & Pump Heating

[oneilly]

We just had a new boiler , pump and valve fitted.

We set the heating and hot water to come on at the same time, the problem is the hot water was okay and the rads got hot upstairs but were Luke warm downstairs, I had to turn the hot water off to get heat downstairs.

Can anybody please advise what I need to do to get both working at once? [/code]

 

[45yearsagasman]

Sounds like you need to call your installer back quick smart and maybe check his balancing of the system.I assume the system was cleaned?

 

[oneilly]

Sounds like you need to call your installer back quick smart and maybe check his balancing of the system.I assume the system was cleaned?

Yes the system was cleaned and has a magnaclean, is there anything I can do?

 

[45yearsagasman]

There is plenty you can do but your installer should really be coming back to balance the hot water and radiator circuits.Adjusting lockshield valves and other balancing valves is time consuming and a good installer will know exactly where to start.

 

[namsag]

If your not wanting to bother installer just turn heating on by itself and turn off the rads upstairs till all down stairs are getting hot then turn upstairs back on that should clear any air that was left in the system

 

[Agile]

Your problem is caused because the hot cylinder takes too much of the flow from the boiler.

That is fixed by adjusting the lockshield valve on the cylinder heating coil but will then take a little longer to reheat.

An alternative is to properly balance the rads so they all heat a the same rate.

Until the installer comes back to properly balance the system/cylinder you can get round the problem by starting the hot water about 1/2 hour BEFORE the heating is set to start. Then all the boiler output is available to reheat the water.

Tony

 

[oneilly]

Your problem is caused because the hot cylinder takes too much of the flow from the boiler.

That is fixed by adjusting the lockshield valve on the cylinder heating coil but will then take a little longer to reheat.

An alternative is to properly balance the rads so they all heat a the same rate.

Until the installer comes back to properly balance the system/cylinder you can get round the problem by starting the hot water about 1/2 hour BEFORE the heating is set to start. Then all the boiler output is available to reheat the water.

Tony

Thanks

Is there anyway I can adjust the lockshield valve on the cylinder heating coil?

 

[bengasman]

...We set the heating and hot water to come on at the same time, ...

Never set the dhw and ch to be on at the same time.