White Rodgers 1F78H - Manual (Page 5)

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Press or to select:
SL
OFF
OFF
ON
4 LO to 4 HI
C
Configuration Menu
* Press HOLD to advance to next item or TIME to move backwards to previous item
Step
1
2
3
4
5
6
7
Press Button(s)
PRGM and RUN
HOLD*
HOLD*
HOLD*
HOLD*
HOLD*
RUN
Displayed (Factory Default)
(FA)
d-L (ON)
E (ON)
LOC (OFF)
0 HI (0)
(F)
Comments
Select FA or SL (Fast or Slow) heating cycle rate
N/A
Select Energy Management Recovery OFF or ON
Select compressor lockout OFF or ON
Select temperature display adjustment higher or lower
Select temperature display to F or C
Returns to normal operation
PROGRAMMING YOUR THERMOSTAT
This section will help you plan your thermostat’s program to meet
your needs. For maximum comfort and efficiency, keep the
following guidelines in mind when planning your program.
• When heating (cooling) your building, program the tempera-
tures to be cooler (warmer) when the building is vacant or
during periods of low activity.
• During early morning hours, the need for cooling is usually
minimal.
Look at the factory preprogrammed times and temperatures shown
below. If this program will suit your needs, simply press the RUN
button to begin running the factory preset program.
If you want to change the preprogrammed times and tempera-
tures, follow these steps.
Determine the time periods and temperatures for your weekday and
weekend programs. You must program four periods for both the
weekday and weekend program. However, you may use the same
heating and cooling temperatures for consecutive time periods. You
can choose start times, heating temperatures, and cooling tem-
peratures independently for both weekday and weekend programs
(for example, you may select 5:00 AM and 70
°
as the weekday 1st
period heating start time and temperature, and also choose 7:00
AM and 76
°
as the weekday 1st period cooling start time and
temperature). Use the table at the bottom of the page to plan your
program time periods and the temperatures you want during each
period. You may also want to look at the sample program table to
get an idea of how the thermostat can be programmed.
Entering Your Program
Follow these steps to enter the heating and cooling programs you
have selected.
Set Current Time and Day
1. Press TIME button once. The display will show the hour only.
EXAMPLE:
PM
2. Press and hold either or until you reach the correct
hour and AM/PM designation (AM begins at midnight; PM
begins at noon).
4. Press and hold either or until you reach the correct
minutes.
5. Press TIME once. The display will show the day of the week.
7 1) Select FA or SL (Fast or Slow) Heating Cycle Rate—The
FA setting is frequently used for gas, oil or electric heat. The
SL setting produces a longer heating cycle which is normally
for hot water or steam (hydronic) systems. Both settings
produce very accurate temperature control and can be set to
your personal preference. FA cycles the system just under
1
°
F and the SL setting cycles at approximately 1.5F
°
.
2) Not Available
3) Select Energy Management Recovery OFF or ON—
Energy Management Recovery (EMR) causes the thermo-
stat to start heating or cooling early to make the building
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 EMR and have your heating pro-
grammed to 65
°
at night and 70
°
at 7 AM. If the building
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.
4) Select Compressor Lockout LOC OFF or ON—Selecting
LOC 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 cycles. This is intended to help protect the compres-
sor 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 feature is already
present in their system. When the compressor time delay
occurs it will flash the for about five minutes then turn on
the compressor.
5) Select Temperature Display Adjustment 4 LO to 4 HI—
Allows you to adjust the room temperature display 4
°
higher
or lower. Your thermostat was accurately calibrated at the
factory but you have the option to change the display tem-
perature to match your previous thermostat.
6) Select F
°
or C
°
Readout—Changes the display readout to
Centigrade or Fahrenheit as required.