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PROGRAMMING
4
USER SETTINGS
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.
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.
ADDITIONAL
5
OPERATION FEATURES
Review Set Temperature
5.1
1.
Press and hold
or
button. The current setpoint temperature will be displayed in the
place of the current room temperature, and the indicator SET will be displayed.
2.
The display will return to normal operating mode when the
The SET indicator will turn off indicating that the current temperature shown in the
display is the room temperature. Continuing to hold the
longer will allow the user to change the current setpoint temperature.
Changing Set Temperature
5.2
1.
Press and hold
or
button at the same time for 3 seconds. The entire display
will flash once and the SET indicator will be flashing. Release the
and press the
or
button again as desired to adjust the set temperature.
2.
The display will return to normal operating mode after 5 seconds.
3.
The SET indicator will turn off in the display indicating that the current temperature
shown in the display is the room temperature.
5.3
Compressor Protection Feature
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:
The installer can reset the thermostat and bypass the compressor protection feature by pressing the RESET
button. This will erase all user program settings and should only be used during installation for testing purposes or to
reset a thermostat to regain normal operation. This will return all thermostat settings to their default values.
cont.
or
buttons are released.
or
button for 3 seconds or
or
button
4
ADDITIONAL
5
OPERATION FEATURES
5.4
Low Battery Detection and Replacement
This thermostat requires two (2) properly installed "AA" alkaline batteries to provide power for the thermostat to properly
control the system operation. The system must have 24 Volt AC power present for proper system operation and control.
This thermostat is equipped with a low battery detection feature that constantly monitors
the batteries during normal operating mode to determine whether they have sufficient
power to provide proper operation.
When this feature determines that the battery status is low, a low battery indicator will appear
in the display. It is recommended that the batteries be replaced immediately to maintain
system operation and program settings.
Replacing the Batteries
5.4.1
1.
Open the battery compartment door.
2.
Gently remove the two "AA" alkaline batteries located in the battery compartment.
3.
Install two new "AA" alkaline batteries into battery compartment. Make sure to match the positive (+) ends of the
batteries with the positive (+) terminals located in the battery compartment.
4.
Close battery compartment and verify that the low battery indicator does not appear in the display.
Resetting Thermostat
5.5
The Reset feature allows the user to completely reset the thermostat to register new manual switch settings and return to
factory set software settings. To erase all entered settings, gently press RESET button using a paper clip or a small pencil tip.
6
TROUBLESHOOTING
SYMPTOM
POTENTIAL SOLUTION
Thermostat does not
Check to see if OFF is shown in display. This indicates that the
turn on heating or
system is turned off at the thermostat. Move the system selector
cooling system.
switch to the ON position.
Compressor protection features may be in effect due to
compressor short cycle conditions. See Compressor Protection
Feature, section 5.3 for a full explanation of this feature.
Heating or cooling system may be malfunctioning. Call a
professional service technician immediately to verify
system operation.
cont.
5
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