Before you begin operating your thermostat, you should be familiar with its features and with the display and the location and operation of the thermostat buttons. Your thermostat consists of two parts: the thermostat cover and the base. To remove the cover, gently pull it straight out from the base. To replace the cover, line up the cover with the base and press gently until the cover snaps onto the base.
THE THERMOSTAT BASE
Other than the 
and 
buttons, the following are
located behind the door on the bottom of the thermostat cover (see fig. 6). Pull the door down to open it.
The Thermostat Buttons and Switches
1(Red arrow) Raises temperature setting.
2(Blue arrow) Lowers temperature setting.
3FAN switch (ON, AUTO).
4SYSTEM switch (COOL, OFF, HEAT, EMER).
The Display
5HEAT is displayed when the SYSTEM switch is in the HEAT position. COOL is displayed when the SYS- TEM switch is in the COOL position. COOL or HEAT is displayed (flashing) when the compressor is in lockout mode. OFF is displayed when the SYSTEM switch is in the OFF position.
6Displays current room temperature.
7EMERGENCY is displayed when the system switch is in the EMER position.
8Displays current set temperature.
OPERATING FEATURES
Now that you are familiar with the thermostat buttons and display, read the following information to learn about the many features of the thermostat.
•TEMPERATURE SET POINT — Press 
or 
until the display shows the temperature you want.
•°F/°C CONVERTIBILITY — Press 
and 
but- tons until the temperature display is in Celsius (°C). To display Fahrenheit (°F), repeat the process.
•TEMPERATURE DISPLAY ADJUSTMENT — Your new thermostat has been accurately set in our fac- tory. However, if you wish, you may adjust your new
thermostat temperature display to match your old thermostat. This can be accomplished (within a ±4° range) as follows:
| OPERATION |
EMER MALF | AUX |
1 | 2 |
|
FAN ON AUTO | OFF HEAT |
COOL | EMER |
3 4
6 5
HEAT 
OFF
COOL
EMERGENCY
7 8
Figure 6. Thermostat display, buttons, and switches
1.Place the SYSTEM switch in the OFF position.
2.While holding the 
button, move the SYSTEM switch to HEAT or COOL. Release the 
button when the display shows only the current tem- perature.
3.Press 
or 
to adjust the displayed temperature to your desired setting.
4.The thermostat will resume normal operation within two minutes.
•RESET BUTTON - (see fig. 2) resets the thermostat to the factory setting. This button can be used to reset the thermostat if it has been subjected to a voltage spike and has become scrambled or frozen.
SETTING YOUR THERMOSTAT
This thermostat is easy to operate. Set the SYSTEM switch to HEAT, COOL or EMERgency. Press 
or 
until the temperature to maintain is shown on the right side of the display. To turn the system off, move the SYSTEM switch to OFF.
The FAN switch controls the fan operation. When the FAN switch is set to AUTO, the fan will cycle with the Heat Pump. When the FAN switch is set to ON, the fan will run continuously, regardless of SYSTEM switch position.
5