2)Select FA or SL (Fast or Slow) Heating Cycle Rate - The FA setting is frequently used for gas, oil or electric heat. The SL setting produces a longer heating cycle which is nor- mally for hot water or steam (hydronic) systems. Both settings produce very accurate temperature control and can be set to your personal preference. FA cycles the system just under I°F and the SL setting cycles at approxi- mately 1.5°F.
3)Select Display Backlight
4)Select filter replacement run time - The thermostat will display "FILTER" after the selected time of operation. This
is a reminder to change or clean your air filter. This time can be set from 0 to 1950 hours in 50 hour increments.
A selection of 000 will cancel this feature. When "FILTER" is displayed, you can clear it by pressing (_
and (_ at the same time. This resets the timer and starts counting the hours until the next filter change.
5)Select Compressor Lockout (LOC OFF or ON) - Select- ing LOC ON will cause the thermostat to wait 5 minutes before turning on the compressor if the heating and cooling system loses power. It wilt also wait 5 minutes minimum between cooling cycles. This is intended to help protect the compressor from short cycling. Some newer compressors already have a time delay built in and do not require this feature. Your compressor manufacturer can tell you if the feature is already present in their system. When the com- pressor time delay occurs it will flash the (snowflake icon) for about five minutes then turn on the compressor.
6)Select Temperature Display Adjustment (4 LO to 4 Hi) - Allows you to adjust the room temperature display 4° higher or lower. Your thermostat was accurately calibrated at the factory but you have the option to change the display temperature to match your previous thermostat.
7)Select Temperature Display (°F or °C) - Changes the display readout to Celsius or Fahrenheit as required.
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.
• SIMULTANEOUS HEATING/COOLING SETPOINT
•CONFIGURATION MENU
SETTING THE THERMOSTAT
This thermostat is very easy to operate. Set the SYSTEM switch
to either HEAT or COOL then press (_ or (_ until the temperature you want to maintain is shown on the right side of the display. If you want to turn the system off, just 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 furnace or air conditioner. When the FAN switch is set to ON, the fan will run continuously, regardless of SYSTEM switch position.
TROUBLESHOOTING
No Heating
With the SYSTEM switch set to HEAT, when the setpoint temperature is raised or lowered past the room temperature, the thermostat will make a soft click sound. Usually, the sound indicates the thermostat is operating correctly. If the system does not come on, check the system or contact your heating/ cooling service person. If the thermostat does not click try the Reset Operation listed below.
No Cooling
Same procedure as heating except set SYSTEM switch to COOL. There can be up to a 5 minute compressor
Blank Display
A blank digital display usually indicates the thermostat has received a voltage spike, static discharge or requires new batteries, If the display remains blank after replacing the batteries, see Reset Operation below,
Reset Operation
If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the thermo-
stat by pressing (_, (:_ and move the SYSTEM switch from OFF to HEAT at the same time. This also resets the factory
defaults to the configuration menu. If the thermostat has power, has been reset and still does not function correctly contact your heating/cooling service person or place of pur- chase.
