White Rodgers 1F85-277 - Manual (Page 8)

8
SPECIFICA SPECIFICA SPECIFICA SPECIFICA SPECIFICATIONS TIONS TIONS TIONS TIONS
Electrical Rating Electrical Rating Electrical Rating Electrical Rating Electrical Rating:
20 to 30 VAC 50/60 Hz or DC
0.05 to 1.5 Amps (Load per terminal)
2.5 Amps Maximum Total Load (All terminals combined)
ELECTRICAL DATA ELECTRICAL DATA ELECTRICAL DATA ELECTRICAL DATA ELECTRICAL DATA
Setpoint Temperature Range Setpoint Temperature Range Setpoint Temperature Range Setpoint Temperature Range Setpoint Temperature Range:
45°F to 90°F (7°C to 32°C)
Operating Ambient Temperature Range Operating Ambient Temperature Range Operating Ambient Temperature Range Operating Ambient Temperature Range Operating Ambient Temperature Range:
32°F to 105°F
Operating Humidity Range Operating Humidity Range Operating Humidity Range Operating Humidity Range Operating Humidity Range:
0 to 90% RH (non-condensing)
Shipping Temperature Range Shipping Temperature Range Shipping Temperature Range Shipping Temperature Range Shipping Temperature Range:
-40°F to 150°F
THERMAL DATA THERMAL DATA THERMAL DATA THERMAL DATA THERMAL DATA
OPERA OPERA OPERA OPERA OPERATION TION TION TION TION
The system "mode" is selected by pressing the SYSTEM button.
Icons on the bottom right corner of the display will indicate the
mode: COOL
COOL COOL COOL COOL ( ), AUTO AUTO AUTO AUTO AUTO ( ), HEAT HEAT HEAT HEAT HEAT ( ), EMER EMER EMER EMER EMER, or OFF OFF OFF OFF OFF. In
any mode except OFF OFF OFF OFF OFF, the setpoint temperature will be shown
on the right side of the display. In OFF OFF OFF OFF OFF, this area will be blank.
The current temperature will be displayed on the left side of the
display.
To operate properly in the AUTO AUTO AUTO AUTO AUTO mode, the heat setpoint
temperature cannot be the same as or higher than the cool
setpoint temperature. The heat setpoint must be at least 1° lower
than the cool setpoint.
Automatic System Changeover Automatic System Changeover Automatic System Changeover Automatic System Changeover Automatic System Changeover
When the thermostat is in the AUTO AUTO AUTO AUTO AUTO mode, both the Flame Flame Flame Flame Flame and
Snowflake Snowflake Snowflake Snowflake Snowflake icons are displayed. The thermostat will call for heat
or cool depending on the room temperature. The setpoint
temperature displayed will be that of the last mode called. If the
last system cycle was heat, the HEAT
HEAT HEAT HEAT HEAT setpoint will be displayed.
If the room temperature raises above the HEAT HEAT HEAT HEAT HEAT setpoint and the
COOL COOL COOL COOL COOL setpoint and a call for cool is required, the temperature
displayed will change to be the COOL
COOL COOL COOL COOL setpoint.
Second Stage Time Delay Second Stage Time Delay Second Stage Time Delay Second Stage Time Delay Second Stage Time Delay
Your thermostat is designed to determine the optimum time to
activate the second stage. Simply raising the temperature in
heating or lowering it in cooling will not always force the
thermostat to bring the second stage on quickly. There is a time
delay from 0-30 minutes depending on the performance of the
first stage of the system.
EXAMPLE: For the last 2 hours the thermostat is set on 70° and
the room temperature is 70° with the equipment using only the
first stage of heat. Since the equipment is keeping the tempera-
ture within 1° of setpoint, the thermostat will delay second stage
for a longer time if you manually raise the temperature or if the
room temperature quickly changes. Once the second stage
comes on, it will come on sooner the next time there is a
difference between the setpoint and the room temperature. The
net effect of the staging program is that when the first stage is
capable of making temperature the second stage will delay
longer. When the thermostat calculates that first stage cannot
make temperature in a reasonable time, the second stage will
come on sooner. This built in function automatically optimizes
the use of additional stages of heat or cool.
Manual Operation Manual Operation Manual Operation Manual Operation Manual Operation
Permanent Program Override Permanent Program Override Permanent Program Override Permanent Program Override Permanent Program Override (HOLD HOLD HOLD HOLD HOLD) – With the SYSTEM
button set to HEAT HEAT HEAT HEAT HEAT or COOL COOL COOL COOL COOL, press the HOLD button once and
release. “HOLD” “HOLD” “HOLD” “HOLD” “HOLD” will be displayed. Use or to adjust the
temperature. The thermostat will hold the room temperature at
the selected setting until you press RUN button to start program
operation again.
Temperature Program Override Temperature Program Override Temperature Program Override Temperature Program Override Temperature Program 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 for a programmed time period.
“HOLD”
“HOLD” “HOLD” “HOLD” “HOLD” will be displayed and flashing. The thermostat will
automatically revert to the program after programmed period.
• LOW BATTERY INDICATOR LOW BATTERY INDICATOR LOW BATTERY INDICATOR LOW BATTERY INDICATOR LOW BATTERY INDICATOR — If the 2 “AA” alkaline batter-
ies are low and should be replaced, the display will be blank
except for “LO BATT
LO BATT LO BATT LO BATT LO BATT”. We recommend replacing batteries
every 2 years. If the home is going to be unoccupied for an
extended period (over 3 months), the batteries should be
replaced before leaving. When the batteries are low, press-
ing any button will cause the display to operated for ten
seconds. After ten seconds, the display will be blank except
for “LO BATT
LO BATT LO BATT LO BATT LO BATT”. You cannot program with low batteries, but
you can override setpoint temperature. After “LO BATT LO BATT LO BATT LO BATT LO BATT” has
been displayed for 4 weeks, the thermostat will raise the
temperature 10 degrees above your setpoint in COOL mode
and will drop the temperature 10 degrees below your setpoint
in HEAT mode. If the “LO BATT
LO BATT LO BATT LO BATT LO BATT” condition continues, and
when it reaches certain value, the thermostat will turn off all
the loads and “LO BATT
LO BATT LO BATT LO BATT LO BATT” will flash.
• SIMPLIFIED COPY DAY FUNCTION SIMPLIFIED COPY DAY FUNCTION SIMPLIFIED COPY DAY FUNCTION SIMPLIFIED COPY DAY FUNCTION SIMPLIFIED COPY DAY FUNCTION — This feature allows
Monday’s program to be copied into the rest of the week’s
programming. This feature is available the first time you
This feature is available the first time you This feature is available the first time you This feature is available the first time you This feature is available the first time you
programmed your thermostat. programmed your thermostat. programmed your thermostat. programmed your thermostat. programmed your thermostat. To use this feature, simply
enter the program for Monday as described in ENTERING
YOUR PROGRAM, then press RUN or HOLD. The only way
to restore this feature is to complete a software reset (see
Reset Operation under TROUBLESHOOTING section).
• C O P Y D A Y F U N C T I O N C O P Y D A Y F U N C T I O N C O P Y D A Y F U N C T I O N C O P Y D A Y F U N C T I O N C O P Y D A Y F U N C T I O N — This feature allows
a selected day’s program to be copied to the desired day’s
programming. To use this feature: in PRGM mode, select the
day to be copied from by pressing the HOLD button. Enter the
program for the selected day as described in ENTERING
YOUR PROGRAM. Press and hold the TIME button for 4
seconds to begin the COPY mode. The LCD will display
“COPY”
“COPY” “COPY” “COPY” “COPY” and the selected day to be copied. The day the
program will copy to will be flashing. Press the HOLD button
to select the day you want to copy to. Press TIME to complete
the Copy Day operation and return to PRGM mode. Press
RUN to exit.