WIRING TERMINAL CONNECTIONS:
1. When attaching the wires to the thermostat, please ensure that the bare wire ends are held ALL the way into the
terminal block while the screw is being tightened.
2. Securely tighten all of the electrical terminal screws, including any unused ones. Be careful not to over tighten the
screws, they only need to be snug.
** Complete heating and/or cooling system wiring can be found in the WIRE IDENTIFICATION AND WIRING
SCHEMATICS section of this instruction sheet. The schematics shown provide component information for brand
new installations or for unreferenced wires.
SYSTEM CONFIGURATION AND SETUP OPTIONS:
On the circuit board, there are hardware settings called “jumpers”. These settings can be changed from their default
values by removing its black cap and reinstalling the cap so that it is positioned
on only one (1) of the metal pins, and not both. A CLOSED jumper means the
black cap is on both of the metal pins, and an OPEN jumper means the cap is on
only one (1) metal pin.
CLOSE OPEN
JP1
JP2
JP3
Furnace
HP
5 MIN 2 MIN
HARDWARE RESET BUTTON: A change to ANY of the jumper settings will not be
recognized by the thermostat until the white HARDWARE RESET button on the
circuit board is pressed.
F
C
JP1 (SYSTEM): [CLOSED = Furnace, default] This setting is used for the majority of all heating
systems that are not heat pumps. Examples for this setting would be: natural gas furnace, hot
water baseboard heat, and oil heat. [OPEN = Heat Pump] Use this setting if you have a heat
pump unit (which looks just like an outside air conditioning unit, but is used for both cooing and
heating).
CLOSED
OPEN
JP2 (DELAY): [CLOSED = 5 Minutes, default] This setting changes the length of time that the
system must remain either on or off before it will switch to the alternate on or off state. The
main purpose of this setting is to provide equipment protection by preventing brief or undesirable
frequent on/off cycling. [OPEN = 2 Minutes] This can be used to decrease the minimum amount
of time that occurs between cycles, and may be desired for hot water radiator systems to reduce
overshoot.
JP3 (SCALE): [CLOSED = Fahrenheit, default] All temperature values are displayed in F˚ degrees.
[OPEN = Celsius] This setting displays all temperature values in C˚ degrees.
JP4 (FAN): This option is located separately from the first three settings shown above.
[CLOSED = Gas, default] This setting lets the heating system itself control the blower fan
automatically. Types of systems that would typically use the “Gas” fan setting would be: natural
gas furnace, propane furnace, and oil furnace.
GAS
[OPEN = Elec] This setting runs the system’s blower fan when heat is called for, and is required
for systems that do not control their own fan while in HEAT mode. Heat pump systems, and units
with an electric heating element typically require this setting.
ELECT
3