No, but if you had bothered to look for (and find - it is EASY - took me all of 30 seconds) the manual, YOU would know by now.
https://www.worcester-bosch.co.uk/support/document/download/8716104440
https://www.worcester-bosch.co.uk/support/document/download/release/8716101859/12822
Sheesh, January 2016