wd388Keston+C36+Combi+Manual+WD388!3!2010 - Free download as PDF File (.pdf), Text File (.txt) or read on for free. The document provides installation and servicing instructions for the Keston C36 bi and C36P bi boilers.3 replacement oil filters for DELUXE WD388. See cross reference chart for DELUXE WD388 and more than 200.000 other oil filters.