In order to effectively turn off a point in the D6112 the zone location must be set to just A rather than 0A. The D5200 programmer screen would read:
** where [X] is the zone number **
7.19 1Zone# [X]
7.20 1Z[X]Loc A (Not 0A or 1A or etc)
The total number of zones in the account must also be reduced by the number of zones turned off. In the D5200 programmer, for account 1, on line 1.17 Acct1Zns, enter the number of zones in use in account 1.