SYX66x Commissioning Guide
V1.10.3 300117
Page 34 of 61
Set-up
HWS Extension
– Enable/Disable – The engineer has the choice to use the Time Extend input (PIN 9) to be used
as a time extension timer such as the LAP5 or LAP10. Closing this contact will bring the heating on into a Controlled
Day mode condition. Should you also require the HWS to be brought into action then you must select to enable the
HWS Extension. When using the external timer the cancel feature of Time Extend switch on the controller are not
applicable as the controller has no influence over the external timer
Aux Switch Option
– Frost Mode (Holiday Mode)/HWS Demand/Summer
9.2
Values Page
Heating Override Period
– Set the number of hours required for heating time extension (1 to 10 Hours)
Hot Water Override Period
– Set the number of hours required for heating time extension (1 to 10 Hours)
