5
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 lockout feature is already present in their system. When
the thermostat compressor time delay occurs it will fl ash the
Snowfl ake
and
Flame icons
for about fi ve minutes.
3.
Select Temperature Display Adjustment 3 LO to 3 HI
–
Allows you to adjust the room temperature display up to 3° higher
or lower. Your thermostat was accurately calibrated at the factory
but you have the option to change the display temperature to match
other temperature measuring devices. The current or adjusted room
temperature will be displayed on the left side of the display.
4. Press RUN to exit the menu and return to normal operation.
FIGURE 5 – Thermostat buttons, display and switches
CONFIGURATION MENU
The confi guration menu allows you to set certain thermostat operating
characteristics to your system or personal requirements.
Press RUN to make sure the thermostat is in the run program mode,
then press PRGM and RUN at the same time to enter the confi guration
menu. The display will show the fi rst item in the confi guration menu.
The confi guration menu chart summarizes the confi guration options.
An explanation of each option follows.
Press HOLD to change to the next menu item or press TIME to go
backwards to the previous item in the menu. To exit the menu and return
to the program operation, press RUN. If no keys are pressed within
fi fteen minutes, the thermostat will revert to normal operation.
1.
Select Fast or Slow Cycling
– In the run mode, if the setpoint
temperature is manually raised by 3°F (2°C) or more above the actual
temperature with the TEMPERATURE UP key, and the fast second
stage feature is enabled (FA on), the second stage will energize
immediately. With FA off, second stage will not energize until the
setpoint temperature is 1°F or more beyond actual temperature for
more than ten minutes.
2.
Select Compressor Lockout CL OFF or ON
– Selecting CL ON
will cause the thermostat to wait 5 minutes before turning on the
compressor if the heating and cooling system loses power. It will
also wait 5 minutes minimum between cooling and heating cycles.
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 PROGRAM STORAGE
–
When programming, you can enter both your heating and cooling
programs at the same time. There is no need to reprogram the
thermostat at the beginning of each season.
•
TEMPERATURE OVERRIDE
– Press
or
until the
display shows the temperature you want. The thermostat will
override current programming and keep the room temperature at
the selected temperature until the next program period begins.
Then the thermostat will automatically revert to the program.
•
HOLD TEMPERATURE
– The thermostat can hold any
temperature within its range for an indefi nite period, without
reverting to the programmed temperature. Press HOLD button.
HOLD will be displayed. Then choose the desired temperature
by pressing
or
. The thermostat will hold the room
temperature at the selected setting until you press the RUN button
to start program operation again.
•
PROGRESSIVE RECOVERY
– Progressive Recovery causes the
thermostat to start heating or cooling early to make the room
temperature reach the program setpoint at the time you specify.
Heating will start 5 minutes early for every 1° of temperature
required to reach setpoint.
Example:
You select Progressive Recovery and have your
heating programmed to 65° at night and 70° at 7 AM. If the
room temperature is 65° the difference between 65° and 70° is
5°. Allowing 5 minutes per degree the thermostat setpoint will
change to 70° at 6:35 AM. Cooling allows more time per degree
because it takes longer to reach temperature.
•
°F/°C CONVERTIBILITY
– The factory default setting is
Fahrenheit. Clipping W904 jumper on the circuit board (see
Figure 1
) will alter this feature to display Celsius temperature.
CONFIGURATION MENU
Step
Press Button(s)
Displayed
(Factory Default)
Press
or
to select:
Comments
1
PRGM
and
RUN
FA (ON)
OFF
Select fast (ON) or slow (OFF) Second Stage Heat
2
HOLD*
CL (OFF)
ON
Select compressor lockout OFF or ON
3
HOLD*
0 HI (0)
3 LO to 3 HI
Select temperature display adjustment higher or lower
4
RUN
Returns to normal operation
*Press
HOLD
to advance to next item or
TIME
to move backwards to previous item.
