TEC1100 Series Thermostat Technical Bulletin 9
TEC1102 Heat Pump Wiring Configuration and DIP Switch Settings
Table 7: TEC1102 Heat Pump DIP Switch Selections
DIP Switch Selection Description
1
On Compressor/Auxiliary Interlocked: turns off the compressor when the auxiliary heat
(E ht) is on. The compressor remains off for 2 minutes after the auxiliary heat is
turned off to ensure that the heat pump coil has cooled.
Off Compressor/Auxiliary Normal: allows the compressor and auxiliary heat to be on
simultaneously.
2
Off Not used. Switch should remain in the Off position.
3
On Allows 2-minute minimum On/Off time for heating or cooling equipment.
Off Allows 4-minute minimum On/Off time for heating or cooling equipment (preferred).
4
On*
Locks the keyboard, disabling buttons to prevent tampering. Day/Night mode
button can select 1-hour override.
Off Unlocks the keyboard.
5
On Comfort: allows the Auxiliary Heat to be energized when the room temperature
error is greater than 0.5°C (1°F) for 1.5 hours.
Off Economy: minimizes the use of Auxiliary Heat. If the room temperature error is
0.5°C (1°F) for 3 hours, auxiliary heat is energized.
6
On Allows multistage heating or cooling.
Off Allows single-stage heating or cooling.
7
On
Liquid Crystal Display (LCD) filter icon (
) turns on with LED 1 contact closure to
24 VAC.
Off No filter icon.
8
On
LCD wrench icon (
) turns on with LED 2 contact closure to 24 VAC.
Off No wrench icon.
* When DIP Switch 4 is on, you can only use the Day/Night mode button to select 1-hour override to occupied
setpoints if in Night mode. All other buttons are read-only. You can also view the N2 address.
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