4
PROGRAMMING
USER SETTINGS
4
4.1
Default Thermostat Settings
Function Status After Reset
Operation Mode Normal Operating Mode
Room Temperature 70˚ F (21.0˚ C), to be renewed within
5 seconds
Setpoint Temperature According to system switch:
62˚ F (17.0˚ C) for Heat or Off
85˚ F (29.0˚ C) for Cool
Temperature Scale ˚F or ˚C dependent on switch setting
Low Battery Warning Off, to be renewed within 5 seconds
Temperature Differential .5˚ F (0.25˚ C)
Short Cycle Protection Timer Reset
Output Relays Off
Residual Cooling Fan Delay 60 Seconds
Recirculating Fan Timer Reset with 120 Min. Off Cycle
Keypad Lock Unlocked
4.2
Setting Temperature Differential
NOTE: The temperature differential settings are the same for both the heating and
cooling systems.
The default settings for the temperature differential is compatible with most systems and
applications. The temperature differential is normally set at time of installation and usually does
not require any modification under normal operating conditions. If you feel that your system is
turning on too often, follow the instructions below.
The default setting is .5˚ F (0.25˚ C). The room temperature must change .5˚ F (0.25˚ C) from
the set point temperature before the thermostat will initiate the system in heating or cooling.
1.
In normal operating mode, press and hold
both the and buttons at the same time
for 4 seconds. LCD display will show "SET
D1 X˚", where "X" equals the ˚F / ˚C
differential setting. This is the current
temperature differential setting.
4.3
Setting Residual Cooling Fan Delay
2.
Press the or button to set the temperature
differential to your desired setting of .5˚, 1˚ or 2˚ F (0.25˚, .5˚, or 1˚ C).
3. Press both the and buttons at the same time again to change the Residual Cooling Fan
Delay, or wait 5 seconds for the thermostat to return to the normal operating mode.
The default setting is 60 seconds. During the COOL mode of operation, the fan will stay on
for 60 seconds after the cooling system has reached the setpoint temperature and has
turned the cooling system off. This improves system efficiency during cooling operation.
1. The display will show "FAN SET XX", where XX is
the fan delay time in seconds.
2. Press the or button to change the Residual
Cooling Fan Delay (0, 30, 60, or 90 seconds).
3. Press both the and buttons at the same time
again to change the Recirculating Fan cycle, or wait
5 seconds for the thermostat to return to the normal
operating mode.
5
cont.
4.4
Setting the Recirculating Fan Cycle (Also see section 5.3)
5.1
Review Set Temperature
1. Press and hold the or button. The current
set point temperature will be displayed in the
place of the current room temperature, and the
indicator SET TEMP will be displayed.
2. The display will return to normal operating mode
when the or button is released. The TEMP indicator will be showing in the display,
indicating that the current temperature shown in the display is the room temperature.
Continuing to hold the or button for 3 seconds or longer will allow the user to
change the current set point temperature.
ADDITIONAL
OPERATION FEATURES
5
PROGRAMMING
USER SETTINGS
4
5.2
Changing Set Temperature
1. The display will show "SET OC XXX", where XXX
is the maximum interval of time (in minutes) that
the fan will remain off if the Recirculating Fan
Mode is selected.
2. Press the or button to change the Recirculating
Fan off cycle (120, 60, or 40 minutes).
3. Press both the and buttons at the same time again to return to the normal
operating mode, or wait 5 seconds for the thermostat to return to the normal
mode automatically.
NOTE:
To erase all user program settings, gently press the RESET button using
a paper clip or a small pencil tip. This will return all thermostat settings to their
default values.
1.
Press and hold or button for 3 seconds. The
entire display will flash once and the SET TEMP
indicator will be flashing. Release the or
button 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 TEMP indicator in the display indicates that the
current temperature shown in the display is the
room temperature.
NOTE:
Select either COOL or HEAT with the
system switch to view or change separate cooling
or heating setpoints.
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