44040-01 • 03/24/2010
40
6
Features
Advanced Menu System Options
1. Select
[ system]
in the message window and press
Next
to enter the system menu.
2. SYSTEM TYPE: Allows you to select the type of system you have. Conventional
systems typically use a compressor outside for cooling and a seperate heating
system inside, where as a heat pumps use the compressor outside for both heat
and cool. If you are unsure of your system type, see “Technical Support” on page
52. Press either
[conventl]
or
[heat pump]
on the screen and choose
Next
to advance
to the next option.
3. FURNACE TYPE: If you selected
[conventl]
on the previous screen, you will need to
specify the type of furnace your system uses. Press either
[gas/oil]
or
[electric]
and
choose
Next
to advance to the next option.
Note:
If you have a heat pump this setting should be
[electric].
4. SPAN 1: The next menu option is to set your thermostats primary span. The span
setting allows you to adjust the system ON/OFF cycle rate. The default setting is
2F. The system cycles ON or OFF when the temperature is within 2°F (1°C) above
and below the set temperature. The span setting can be adjusted if your system is
cycling too fast or too slowly. Use the or buttons to adjust between 1, 2, or, 3.
Press
Next
to advance to the next option.
Note:
Setting a higher SPAN number increases your cycle time by allowing the system
to run longer; a lower number will decrease your cycle time by causing the system to
run for a shorter length of time.
