draining my worcester 924 elec

[steviebabe]

i want to drain the system but cant see the drain off valve on any radiators, is the drain off point behind the sealed unit (the red thing)also do i just turn elec off connect hose and gradually open rad valves,i know how to fill the system ,any ideas

 

[Bahco]

If you have any drain valves on your system , they will be at the lowest point i.e. under your radiators.
If you can't find any, you will have to drain the hard way via the rad valves
Have a good look, and remember that each downstairs drop will have to be drained if you require a full drain down.

Remember to open upstairs rad bleed screws to vent the system to drain down