Advanced Installation - Honeywell RTH8500 Owner's Manual

Advanced Installation

Enter System Setup
1. Press SYSTEM.
2. Press and hold blank center key until the screen changes (approximately
5 seconds).
FAN
Inside
AUTO
SYSTEM
HEAT
Changing Settings
1. Press the or
s
function.
2. Press the or
s
setting.
3. Press DONE to save & exit.
Some functions in the following
NOTE:
pages may not appear due to previous
selections made.
Function Description
0120 Year Setting
(first two digits)
0130 Year Setting
(second two digits)
0140 Month Setting
0150 Date Setting
TUE
70
Set To
FAN
AUTO
SYSTEM
HEAT
6:01
AM
SCHED HOLD SCREEN
DONE
M28340
button to select
t
button to change
t
Setting
Press the s or t button to change the setting.
20
21
01
01
01
TUE
70
70
Inside
Set To
Following
Schedule
Outside
43
6:01
AM
MORE
TUE
FAN
Inside
AUTO
Function
0120
DONE
= Year 20xx
= Year 21xx
- 99 (i.e., 2001 - 2099
- 12 (i.e., January - December)
- 31
10
70
CANCEL
M28341
70
70
Set To
Setting
20
M28341