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506080-02 5/2017
Table 3. DIP Switch Function Description
Desig
nation
Description
Off
On
Factory
Setting
1 - Cal 1
Room Temperature
Offset: 1°F
0°F
1°F
0°F
2 - Cal 2
Room Temperature
Offset: 2°F
0°F
2°F
0°F
3 - Cal +/-
Room Temperature
Offset: Sign
Posi
tive
Neg
ative
Positive
4 - F/C
Select Fahrenheit or
Celsius Display
F
C
F
5 - Fan
Option
(L3011C
only)
Select Heating Fan
Operation:
Electric (E) or
Gas (G)
G
E
G
5 - Back
up Heat
(L3021H
only)
Select Backup Heat:
Electric (Aux) or
Gas (Dual)
Aux
Dual
Aux
Thermostat Calibration
The Cal 1, Cal 2 and Cal± DIP switches may be used to
offset or recalibrate the room temperature display. Table 4
provides DIP switch settings and corresponding tempera
ture offset values.
L3011C Thermostats Only -
If the fan operation DIP switch
is set on G, fan operation during the heating mode will be
controlled by the furnace, rather than by the thermostat. The
thermostat fan icon is not displayed during heating mode op
eration, even though the fan may be energized. This setting
is used in applications which include a gas furnace. If the fan
operation DIP switch is set on E, the thermostat controls fan
operation during the heating mode. This setting is used in ap
plications which include an electric furnace.
L3021H Thermostats Only -
Restriction of the backup heat
functions requires the installation of the optional outdoor tem
perature sensor (X2658). The sensor must be wired to the
subbase terminal strip T terminals. Use the backup heat DIP
switch to select either electric heat backup or gas heat back
up.
Table 4. DIP Switch Temperature Offset
Cal 1
Cal 2
Cal +/- Temperature Offset
Off
Off
Off
+0°F (no offset)
On
Off
Off
+1°F
Off
On
Off
+2°F
On
On
Off
+3°F
Off
Off
On
-0°F (no offset)
On
Off
On
-1°F
Off
On
On
-2°F
On
On
On
-3°F
