The term 'installed' can refer to a variety of different actions. It can mean to appoint someone to a position, such as in the word 'APPOINTED' (9 letters). It can also mean to begin something, such as in the words 'BEGAN' (5 letters), 'INITIATED' (9 letters), 'INSTITUTED' (10 letters), 'INAUGURATED' (11 letters), 'STARTED' (7 letters), and 'BEGUN' (5 letters). It can also mean to establish something, such as in the word 'ESTABLISHED' (11 letters). It can also mean to lay something down, such as in the word 'laid' (4 letters). It can also mean to seat someone, such as in the word 'seated' (6 letters). Finally, it can mean to hook something up, such as in the word 'hookedup' (8 letters).