Daylight Savings Time Reminder
Energy Policy Act of 2005 extends Daylight Saving Time (DST) in the U.S. by
approximately four weeks. As a result, DST will start on the 2nd Sunday in
March, and end on the 1st Sunday in November.
VISTA, Lynx, and First Alert Professional series products have an integral
clock with an optional daylight savings adjustment. Existing installations are
set to the previous Daylight Savings dates by default (i.e. 4/1/07 to
10/28/2007.) Honeywell is in the process of updating defaults on all new
products to reflect the new DST start and end dates; this update process will
occur throughout the year. In the meantime, program all new installations to
reflect the new DST start and end times (this can be done through Compass or
Adjusting Daylight Savings Time Setting on Vista and Lynx Control
The installer can reprogram the DST start and end
dates either through keypad programming or via the Compass downloader. The
associated programming field(s) for each panel family are listed here, but
please refer to the panel's Installation & Setup Guide for details.
- For Lynx and ReadyGuard series systems, the DST start and end dates are in
Fields *29 (start month 3, end
month #11); and *30 (starting
weekend 2, ending weekend 1).
- For residential panels (e.g. Vista 10P, 15P, 20P, FA130CP, FA148CP,
FA168CPS and variants), the DST start and end dates are in Fields
*77 (start month 3, end month
#11) and *78 (start weekend
2, end weekend 1).
- For commercial panels (e.g., Vista 32FB, 40/50P, 100, 128BP/250BP,
128FBP/250FBP, 4140XMPT, FA1600C, FA1660C, FA1700C and variants), the DST
start and end dates are in field 2*01 (start month
03, end month 11) and
2*02 (start weekend 2, end weekend
End User System Clock Reset
If desired, the end user can
reset the system clock as per the User Guide instructions.
Important! Graphic keypads (e.g., Symphony, 6270) used with
commercial control panels (e.g., Vista-128BP and FBP) do not get the
time from the panel, and therefore must be reset manually. Customers should
uncheck the DST option box in the graphic keypad. Otherwise, the time will
automatically change on the incorrect weekend. It is NOT necessary to do
this on graphic keypads used with residential systems (e.g., Vista-20P).
For further information or assistance, please contact HSC Technical Support