My hot water was way too hot at the tap so I just replaced the cylinder thermostat. While I was at it, I removed the actuator from the mid position valve (Drayton) and tried turning it with some pliers. It seemed very stiff and with only around 45 degrees of movement (not sure if this is normal?) The valve has been in place for around 12 years.
Now I am wondering if the mid position valve was my problem and should I replace it and if so, should I convert the system to S plan. If I have to drain the system down to change the valve, it wouldn't be much more work to replace it with a pair of 2 port valves. Does this sound like a good idea?
The system is a pressurised Worcester 24i boiler with a gravity fed 210 litre cylinder and 15 radiators. I also have a large towel radiator in one of the bathrooms that acts as a boiler bypass plus one of the radiators is not thermostatic.
The only potential problem that I can see would be if I have to run extra cables from the airing cupboard to the controller/junction box. This would not be practical. My airing cupboard contains the mid position valve and the cylinder thermostat with cables running to the utility room which contains the boiler and junction box/programmer. Would the 5 core cable for the existing mid position valve be enough for two replacement 2 port valves?
Sorry for the long winded questions!
Now I am wondering if the mid position valve was my problem and should I replace it and if so, should I convert the system to S plan. If I have to drain the system down to change the valve, it wouldn't be much more work to replace it with a pair of 2 port valves. Does this sound like a good idea?
The system is a pressurised Worcester 24i boiler with a gravity fed 210 litre cylinder and 15 radiators. I also have a large towel radiator in one of the bathrooms that acts as a boiler bypass plus one of the radiators is not thermostatic.
The only potential problem that I can see would be if I have to run extra cables from the airing cupboard to the controller/junction box. This would not be practical. My airing cupboard contains the mid position valve and the cylinder thermostat with cables running to the utility room which contains the boiler and junction box/programmer. Would the 5 core cable for the existing mid position valve be enough for two replacement 2 port valves?
Sorry for the long winded questions!