NOTE
If you are programming your thermostat for the first time, and you want programming for all days of the week to be the same as Monday’s program, press RUN or HOLD at this point, and proceed to the SELECT COOLING TEMPERATURES section (this simplified COPY DAY feature only works the first time you program your thermostat; refer to “COPY DAY FUNCTION” if you want to copy one day’s programming to a specific day program- ming; if you are changing your thermostat’s programming, you must program each day separately.
8.Press HOLD once. “TU” (indicating Tuesday’s program) will be displayed, along with the start time for the 1st heating period and the currently programmed heating setpoint tem- perature.
9.Repeat steps 3 through 7 to complete Tuesday’s heating program.
10.Continue entering each day’s programming until all heating periods temperatures have been selected.
11.Press RUN to end heating programming. Proceed to the SELECT COOLING TEMPERATURES section.
Enter Cooling Temperatures
If the outside temperature is below 50° F, disconnect power to the cooling system before programming. Energizing the air conditioner compressor during cold weather may cause personal injury or property damage.
1.Move SYSTEM switch to COOL position.
2.Follow the procedure for entering your heating program, using your selected cooling times and temperature.
Check your programming
Follow these steps to check your thermostat programming one final time before beginning thermostat operation.
1.Move the SYSTEM switch to HEAT position.
2.Press PRGM to view the 1st Monday heating period time and temperature. Each time you press PRGM, the next heating period time and temperature for Monday will be displayed in sequence. Press HOLD to display Tuesday’s 1st heating period program. Press PRGM to check the remaining Tues- day heating period times and temperatures. To check each day’s heating program, press HOLD to change days, then press PRGM to look at each programming period for the day (you may change any time or temperature during this proce- dure).
3.Press RUN.
4.Move SYSTEM switch to COOL position.
5.Repeat step 2 to check cooling temperatures.
6.Press RUN to beging program operation.
YOUR THERMOSTAT IS NOW COMPLETELY PROGRAMMED AND READY TO AUTOMATICALLY PROVIDE MAXIMUM COM- FORT AND EFFICIENCY!
8 SPECIFICATIONS
ELECTRICAL DATA
Electrical Rating:
0 to 30 VAC 50/60 Hz. or D.C.
0.05 to 1.2 Amps (Load per terminal)
1.5Amps Maximum Total Load (All terminals combined)
THERMAL DATA
Setpoint Temperature Range:
45°F to 90°F (7°C to 32°C)
Operating Ambient Temperature Range:
32°F to 105°F
Operating Humidity Range:
0 to 90% RH
Shipping Temperature Range:
9 TROUBLESHOOTING
Reset Operation
If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the thermostat
by pressing 
, 
and TIME at the same time. This also resets the factory defaults. If the thermostat has power, has been
reset and still does not function correctly contact your heating/ cooling service person or place of purchase.
Batteries
For optimum performance, we recommend replacing batteries once a year with fresh “AAA” Energizer® alkaline batteries.
Symptom | Possible Cause | Corrective Action | |
No Heat/No Cool/No Fan | 1. | Blown fuse or tripped circuit breaker. | Replace fuse or reset breaker. |
(common problems) | 2. | Furnace power switch to OFF. | Turn switch to ON. |
| 3. | Furnace blower compartment door or | Replace door panel in proper position to engage |
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| panel loose or not properly installed. | safety interlock or door switch. |
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No Heat | 1. | Pilot light not lit. | |
| 2. | System Switch not set to Heat. | Set System Switch to Heat and raise temp above |
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| room temp. |
| 3. | Loose connection to thermostat or system. | Verify thermostat and system wires are securely |
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| attached. |
| 4. | Furnace | Many furnaces have safety devices that shut |
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| be intermittent. | down when a |
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| heat works intermittently contact the furnace |
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| manufacturer or local service person for |
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| assistance. |
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