T--298
3-16
NOTE
IftheFANbuttonispressedagainorifnobutton
is pressed for two minutes, the thermostat will
exit the configuration mode and return to nor-
mal operation. To re--enter the configuration
mode, the FAN button must be pressed and
held for 10 seconds again.
While in the configuration mode, the following options
are available:
A. ANTICIPATOR -- Value Adjustment
Thisadjustmentcontrolsthesensitivityandcyclerateof
the thermostst. Higher numbers decrease the
sensitivity and slow the cycle rate. Lower numbers
increase the sensitivity and increase the cycle rate.
However , a limiting feature will not allow more than 4
equipmentcyclesperhour,regardlessofsetting.Values
can range from 1 to 3. Factory default setting is 2. This
default selection will provide optimum performance in
nearlyallinstallations.Tryitfirst. Donotchangesettings
unless there is evidence of need to do so. Unlike
conventional anticipators, this setting is notdetermined
by current draw. Thereis no need tomeasure, know ,or
compensate for current.
To Adjust:
a. Enter configuration mode (if not already there).
b. Use UP & DOWN buttons to display A.
c. Press MODE button once to display current value.
d. Use UP& DOWNbuttonstomove betweenvalues.
e. Press MODE buttonto return to A.UP &DOWN
buttons now move between option choices A, d, oF or
press F AN button to exit configuration mode.
d. Fahrenheit/Celsius Selection
This selection operates the thermostat in either
Fahrenheit or Celsius.
To Select:
a. Enter configuration mode (if not already there).
b. Use UP & DOWN buttons to display d.
c. Press MODE button once to display current
selection of F or C.
d. UseUP&DOWNbuttonstochangebetweenF&C.
e. Press MODE buttonto return to d.UP &DOWN
buttons now move between option choices; or press
F AN button to exit configuration mode.
oF. Room Temperature Offset Adjust Sel ection
The selected number is the number of degrees, plus or
minus, which will be added to the actual temperature.
The numbers can range between --5 and +5. Factory
default is 0. This adjusted value will be used as actual
temperature for both display and control action. The
effect is that a positive number selection will make the
room temperature lower , and vice versa. The
thermostat is calibrated within an accuracy of plus or
minus 2 degrees when shipped from the factory; this
adjustmentwillprovidethebestaccuracy whenset too.
To Select:
a. Enter configuration mode (if not already there).
b. Use UP & DOWN buttons to display oF .
c. Press MODE button once to display offset value.
d. UseUP&DOWN buttonstoselect avaluebetween
--5 and 5.
e. Press MODE buttonto return to oF.UP &DOWN
buttons now move between option choices; or press
F AN button to exit configuration mode.
3.10 CHECK THERMOSTAT OPERATION
3.10.1 Fan Operation (Cool Only)
1. Press FAN button, starting fan operation. F AN an-
nunciator turns on; Lo is displayed in the room tem-
perature area for 5 seconds indicating Fan Low
Speed.
2. Press FAN button, FAN annunciator remains on; Hi
is displayedin room temperaturearea for 5 seconds
indicating Fan High Speed.
3. Press F AN button, stopping fan operation. FAN an-
nunciator turns off.
3.10.2 Fan Operation (Heat/Cool)
1. Press F AN button, starting low fan (Lo) operation.
F AN annunciator turns on.
2. Press FAN button, starting high fan (Hi) operation.
F AN annunciator remains on.
3. Press F AN button, stopping fan operation. FAN an-
nunciator turns off.
3.10.3 Cooling Operation (Cool Only)
1. Press and release MODE button until COOL is dis-
played.
2. PressDOWNbuttonuntil LCD readout reads 10 de-
grees below room temperature. Cooling and High
Fan system should begin to operate within 5 min-
utes.
3.10.4 Cooling Operation (Heat/Cool)
1. Press and release MODE button until COOL is dis-
played.
2. PressDOWNbuttonuntil LCD readout reads 10 de-
grees below room temperature. Cooling and High
Fan system should begin to operate within 5 min-
utes.
3.10.5 Heating Operation (Heat/Cool)
1. Press and release MODE button until HEAT is dis-
played.
2. PressUPbuttonuntilLCDreadoutreads10degrees
above room temperature. Heating system should
begin to operate within 1 minute.
3.11 CHECK THERMOSTAT OPERATION
3.1 1.1 Temperature Display
The thermostat will display room temperature until the
UPorDOWN buttonispressed.ThewordSET appears
when these buttons are pressed and the current set
point is displayed. If no buttons are pressed for 5
seconds, the display will change back to show room
temperature.
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