Unvented system silly question

[plumben]

Long time no post fellas

Ive got a job to move a basin and rad to opposopp walls, unvented system

I just turn the cw off next to cylinder and open hot and cold dont I

Forgive my simple question but I don't usually work on a anything other than combis

 

[ShaunCorbs]

correct or just whip the mains stop tap off

if its a mega flow dont forget to do the propper recharge