Heating Controls.
Posted: January 29th, 2018, 4:02 pm
I have "fixed" a problem, but I still don't know if there is something wrong with the system. What do you think?
Two zones of heating + hot water, individual motorised valves. All set to come on at around 6.30 am. Downstairs heating does not come on, but does come on when programmed at other times during the day. What I did was to re-programme the hot water and the upstairs heating to come on later, whereupon the downstairs heating does come on at 6.30 ! Could it be that if the hot water and upstairs heating come on first, the downstairs heating valve can't open against the pressure in the system with the pump already running? Or maybe the actuator is starting to fail and hasn't got enough oomph?
The downstairs valve is 28mm, the other two are 22mm. The system is 7 years old.
Comments please.
Parky.
Two zones of heating + hot water, individual motorised valves. All set to come on at around 6.30 am. Downstairs heating does not come on, but does come on when programmed at other times during the day. What I did was to re-programme the hot water and the upstairs heating to come on later, whereupon the downstairs heating does come on at 6.30 ! Could it be that if the hot water and upstairs heating come on first, the downstairs heating valve can't open against the pressure in the system with the pump already running? Or maybe the actuator is starting to fail and hasn't got enough oomph?
The downstairs valve is 28mm, the other two are 22mm. The system is 7 years old.
Comments please.
Parky.