Functions And Settings - Honeywell RTH8500 Series Quick Installation Manual

System setup About your new thermostat
NOTE: If you set the time and date as shown on page 10,
press NEXT to function 0170 and go to page 16.
See page 14 to navigate between functions.
Function
0120 Year Setting
(first two
digits)
0130 Year Setting
(second two
digits)
0140 Month Setting Press
0150 Date Setting
Settings & Options
Press to change the first two
s/t
digits of the year:
20 = Year 20xx
21 = Year 21xx
Press to change the last two
s/t
digits of the year:
01 - 99 (i.e., 2001 - 2099)
to change the current
s/t
month:
01 - 12 (i.e., January - December)
Press to change the current
s/t
date:
01 - 31
15
RTH8500
69-2219EF—03