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2
Installation
cont.
Installing Your New Thermostat
10. Fasten the sub-base to wall using supplied screws.
11. Connect wires to quick wiring terminal block as appropriate using the new terminal
designations. Refer to Wiring Diagram section of this manual if required for assistance.
12. Make sure all of the wire connections are secure and are not touching any other
terminal to prevent electrical shorts and potential damage to the thermostat.
13. Turn the front thermostat body over, exposing the rear view of the circuit board.
14. Locate the internal HEAT/COOL switch on the circuit board. This switch configures for
heating (HEAT) systems or cooling (COOL) systems.
15. Using your fingers, gently flip the switch towards HEAT or COOL selection that indicates
the system the thermostat will control.
16. Locate the internal fan option switch, HG (Gas) / HE (Elec) on the circuit board. This
switch controls the heating system fan delay. Select gas for gas or oil fired systems.
This will allow the furnace to run for a few seconds before initiating the fan. Select
electric for systems with electric furnace elements that require the fan to come
on immediately.
17. Using your fingers, gently flip the switch towards the HG (Gas) or HE (Elec) selection
that indicates the low voltage heating system the thermostat will control.
18. Locate the internal ˚F/˚C switch on the circuit board.
19. Using your fingers, gently flip the switch towards the preferred temperature ˚F/˚C scale.
20. Attach front body of thermostat to sub-base of thermostat being careful to align the
terminal pins on the front body with the terminal block on the sub-base.
21. Open front thermostat door and open battery compartment door.
22. Install two new "AA" alkaline batteries into battery compartment. Make sure to locate
the positive (+) ends of the batteries and match them with the positive (+) terminals
located in the battery compartment.
23. Close battery compartment.
24. Restore system power so you can test installation.
NOTE:
If you installed the batteries prior to accomplishing steps 14 thru 19 then you
will need to reset the thermostat to register your thermostat switch configurations prior to
programming any user settings. Gently press the RESET button on the front of the
thermostat using a paperclip or a small pencil tip.
3
Testing Your New Thermostat
WARNING!
Read BEFORE Testing
• Do not short (or jumper) across terminals on the gas valve or at the heating or cooling
system control board to test the thermostat installation. This could damage the
thermostat and void the warranty.
• Do not operate compressor if the outside temperature is below 50˚ F (10˚ C). This could
possibly damage the controlled cooling system & may cause personal injury.
• This thermostat includes an automatic compressor protection feature to avoid potential
damage to the cooling system from short cycling. This thermostat automatically provides
a 5-minute delay after turning off the cooling system output to protect the compressor.
NOTE:
T
est your thermostat prior to programming any user settings. Pressing the
RESET button will erase any user entries previously programmed. This will erase all
user settings and return them to their default values.
1. Place the system switch in the ON position.
2. For heat only thermostats press the button on the keypad until the setpoint temperature
setting is a minimum of 3 degrees higher than the current room temperature. The heating
system should start within several seconds. The fan may not turn on immediately due to the
heating system built-in fan delay.
3. Place the system switch in the OFF position. The heating system should stop within several
seconds on normal single stage heating or cooling systems.
4. For cool only thermostats press the button on the keypad until the setpoint temperature is a
minimum of 3 degrees lower than the current room temperature.
cont.
2
3
Testing Your New Thermostat
5. The cooling system should start within several seconds. Place the system switch in the OFF
position. The cooling system should stop within a few seconds.
6. Place the fan switch in the ON position. The system blower should start.
7. Place the fan switch in the AUTO position. The system blower should stop.
4
Programming User Settings
Default Thermostat Settings
Function
Operation Mode
Room Temperature
Setpoint Temperature
Temperature Scale
Low Battery Warning
Temperature Differential
Short Cycle Protection Timer
Output Relays
Setting Temperature Differential
The default settings for the temperature differential is compatible with most systems and
applications. The temperature differential is normally set at time of installation and usually does
not require any modification under normal operating conditions. If you feel that your system is
turning on too often, simply follow the instructions below.
NOTE:
The temperature differential settings are the same for both the heating and
cooling systems.
The default setting is 0.5˚ F (0.25˚ C). The room temperature must change 0.5˚ F (0.25˚ C) from
the setpoint temperature before the thermostat will initiate the system in heating or cooling.
1. In normal operating mode, press and hold
both the
and
buttons at the same time
for 4 seconds. LCD display will show "SET
D1 x˚", where "x" equals the ˚F / ˚C
differential setting. This is the current
temperature differential setting.
2. Press the
or
buttons to set the temperature differential to your desired setting of .5˚, 1˚,
or 2˚ F (2˚, .5˚ or 1˚ C).
NOTE:
Once you have finished setting the temperature differential you can
wait 5 seconds and the thermostat will automatically return to the normal
operating mode. Otherwise, you can press both the
same time again to return you to normal operating mode.
NOTE:
To erase all user program settings, gently press RESET button using
a paperclip or a small pencil tip. This will return all thermostat settings to their
default values.
cont.
Status After Reset
Normal Operating Mode
70˚ F (21.0˚ C), to be renewed within
5 seconds
According to system switch:
62˚ F (17.0˚ C) for Heat or Off
85˚ F (29.0˚ C) for Cool
˚F or ˚C dependent on switch setting
Off, to be renewed within 5 seconds
0.5˚ F (0.25˚ C)
Reset
Off
and
buttons at the
3
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