Before installation it is categorically recommended to introduce attentively with an installing instruction that you can find in EVERY lock manual.
If a construction of your door does not correspond to variants described in the instruction for information on how to install a lock you should apply either to
here, or to the near Service centre or to the seller.
If you are not sure exactly you can deal successfully with lock installation to apply to the specialist ... With a small additional expenses by comparison it will save your nerves, nerves of your household or officials and also your money put in the lock!!!