4
PROGRAMMING
USER SETTINGS
4
4.1
Default Thermostat Settings
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.
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
Temperature Differential
0.5˚ F (0.25˚ C)
Short Cycle Protection Timer Reset
Output Relays
Off
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.
Otherwise, you can press both the and buttons at the same time again to return you
to normal operating mode.
4.
Place the system switch in the
COOL
position.
5.
Press the button on the keypad until the setpoint temperature is a minimum of 3 degrees
lower than the current room temperature.
6.
The cooling system should start within several seconds. Place the system switch in the
OFF
position. The cooling system should stop within a few seconds.
7.
Place the fan switch in the
ON
position. The system blower should start.
8.
Place the fan switch in the
AUTO
position. The system blower should stop.
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, simply follow the instructions below.
The default setting is 0.5˚ F (0.25˚ C). The room temperature must change 0.5˚ F (0.25˚ C) from
the setpoint temperature before the thermostat will initiate the system in heating or cooling.
2.
Press the or buttons to set the temperature differential to your desired setting of .5˚, 1˚,
or 2˚ F (.25˚––displayed as .2˚, .5˚, or 1˚ C).
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.
TESTING YOUR
NEW THERMOSTAT
3
cont.
5.1
Review Set Temperature
5
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.
5.2
Changing Set Temperature
5.3
Compressor Protection Feature
5.5
Resetting Thermostat
5.4
Non-Volatile Memory
In the event of a power failure, the non-volatile memory feature of this unit allows all settings
to be recovered, eliminating the need to reset temperature and differential settings. When AC
power is restored after an outage, all settings are retrieved from memory and reinstated.
The Reset feature allows the user to completely reset the thermostat to register new manual
switch settings and return to factory set software settings.
1.
To erase all entered settings, gently press
RESET
button using a paper clip or a small
pencil tip.
2.
This will return all thermostat settings to their default values and register all new manual
switch settings for proper operation.
ADDITIONAL
OPERATION FEATURES
5
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 or
buttons are released. The
SET
indicator will turn off, 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 setpoint temperature (See
Changing Set Temperature
).
1.
Press and hold or button for 3 seconds. The entire display
will flash once and the
SET
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
SET
indicator will turn off in the display, indicating that the
current temperature shown in the display is the room temperature.
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. This protection is also present in the
heat mode of operation on single stage heat pump systems to protect the compressor.