Honeywell CHRONOTHERM T4700 User manual

OWNER’S GUIDE
® U.S. Registered Trademark
Copyright © 2003 Honeywell International Inc.
All Rights Reserved 69-1396-2
T4700 Chronotherm™
Electronic
Programmable
Line Voltage
Thermostat

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Features
• Digital temperature sensing and
control for energy efficient
precision operation.
• Flexibility of 5-1-1 day or 7-day
programming
• Exceptional comfort control of
resistance-rated heating
equipment.
• Patented CoolSwitch™ design
offers a long service life.
• Night and day setback of space
temperature can save up to 29
percent of the energy used to
heat a controlled zone.
• Offers up to a 12 percent energy
saving during comfort periods
compared with conventional bi-
metallic electric heating
thermostat, according to the
Electric Power Research
Institute.

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Welcome ... to the world of comfort and
energy savings with your new Honeywell
programmable thermostat.
Your new T4700 Chronotherm™
Programmable Electronic Line Voltage
Thermostat is designed to provide you with
reliable, precise temperature control. When
you follow the simple programming
instructions in this manual, your thermostat
automatically controls the temperature in
your home, saving energy and allowing you
to awake (or return home) to a comfortable
temperature in your home.
Please direct any questions about the
operation of this thermostat to Honeywell
Customer Assistance at 1-800-468-1502.
Contents
Features ................................................. 2
Specifications ......................................... 4
Programming Thermostat....................... 5
Initial Power-Up ................................. 5
Factory Set Programming ................. 5
Thermostat Reset .............................. 6
Homeowner Programming ................ 6
Setting the Current Day and Time ......... 7
Setting the Daily Schedule (7-Days........ 8
Copying Schedules to Another Day ....... 9
Overriding a Program ............................. 10
Programming Additional Functions ........ 10
Checkout ................................................ 12
Troubleshooting...................................... 12
Customer Assistance.............................. 13
One-Year Limited Warranty .................... 14

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Specifications
Models:
T4700A: SPST; makes heating circuit
on temperature fall.
T4700B: DPST; makes heating circuit
on temperature fall. Breaks both
sides of 240 volt line with switch in
OFF position.
Temperature Ratings:
Operating Range: -20 to +104°F (-30°
to +40°C).
Control Range: 45 to 80°F (7 to 27°C)
in 1° increments. Factory set at 16°C
(61°F).
Humidity Ratings: 55 to 95 percent
RH, non-condensing.
Wiring: 6 in. (150 mm) stranded copper
leadwires, suitable for connection to
aluminum wiring if approved special
service CO/ALR connectors are used.
Electrical Ratings (Noninductive):
3800W, 16A maximum;
500W, 2A minimum at 240V, 60 Hz.
Sensing Element: Electronic
thermistor.
Switching: Patented CoolSwitch®.

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Programming Thermostat
Initial Powerup
When the thermostat is first powered up (or
after eight hours of continuous power loss),
the display blinks for two seconds and then
undergoes a self-test — while 00E displays
for about 15 seconds.
This is followed by the display flashing
(1:00 PM); the internal checkout is
complete and the thermostat is ready to be
programmed.
To verify that the thermostat is turning on
the baseboard heater, press the (+) key
until the setpoint displayed exceeds the
room temperature.
The (°) symbol is flashing. Feel for warmth
in the area close to the heating element;
the unit should be starting to generate heat.
Press and hold the Prog key to return the
thermostat to the Run mode.
Factory Set Programming
The thermostat defaults to a normal non-
programmable thermostat at power-up,
indicated with Hold appearing in the
display. Pressing the Prog key once enters
the programming mode. The thermostat is
preset with a factory set schedule for 7
days, see Table 1.
Table 1. Preset Factory Schedule
for 7-days.
Event Time Temperature
WAKE 6:00 AM 70°F (21°C)
LEAVE 8:00 AM 61°F (16°C)
RETURN 6:00 PM 70°F (21°C)
SLEEP 10:00 PM 61°F (16°C)

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Thermostat Reset
The T4700 can be reset to its default
settings (Table 1) by inserting a bent paper
clip or similar wire into the small hole on the
front of the thermostat (next to to the (+)
key with the cover open). This resets only
the clock; the programmed schedule is
retained.
Homeowner Programming
IMPORTANT
After programming is complete, the
device reverts to normal Run mode
within five minutes, if no key was
pressed, and any new setting is
stored in its memory.
The thermostat is flexible and can be
programmed to meet your lifestyle. Four
time periods are available:
WAKE is the time the thermostat turns on
the equipment after an energy saving
period. When deciding what time to set for
your WAKE period, include extra lead time,
depending on the outside temperature and
your equipment response time, to give the
equipment time to adjust the temperature
before you get up.
LEAVE is the time you can set for an
energy-saving temperature while you are
away at work or school.
RETURN is the time the thermostat turns
on the equipment after an energy saving
period. When deciding what time to set for
your RETURN period, include extra lead
time, depending on the outside
temperature and your equipment response
time to give the equipment time to adjust
the temperature before you arrive home.
SLEEP is the time you can set for an
energy-saving temperature while you are
sleeping.
IMPORTANT
Always press the keys with you fin-
gertip or similar blunt tool. Sharp
instruments like pens and pencil
points can damage the keys.
See Tables 2 - 6 to program your
thermostat.

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Table 2. Setting the Current Day and Time.
Step Press This Key Display Shows Description
1 Displays day of the week.
2 Displays changed day of the week.
3 Displays hour of the day.
4 Displays changed hour of the day.
5 Displays minute of the day.
6 Displays changed minute of the
day.

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NOTE: Continue through LEAVE, RETURN, and SLEEP periods using the same procedure
to set the time and temperature for each period. To easily copy one day schedule to
another day, see Table 4.
Table 3. Setting the Daily Schedule (7-Days).
Step Press This Key Display Shows Description
1 Scrolling through the display shows
the first day to program, beginning
with Monday.
2 Displays WAKE time.
3 Displays changed WAKE time in
ten-minute increments.
4 Displays WAKE setpoint
temperature.
5 Displays changed WAKE setpoint
temperature.
6 Displays LEAVE time.

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NOTE: To exit the programming mode: 1) press and hold the Prog key for three seconds and
the display returns to Run mode, or 2) during the programming session, after five minutes
elapsed time with no program change, the display reverts to Run mode. This does not
change any of the programmed steps. Simply keep pressing the Prog key until you arrive
at the desired mode.
Table 4. Copying Schedules to Another Day.
Step Press This Key Display Shows Description
1 Selects and displays the day to be
copied; for example, MOnday.
2 Displays COPY FROM day
(MOnday).
3 Displays COPY TO day (TUesday).
4 Enters the program.
(NOTE: Repeat sequence to copy
additional days.)

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Table 5. Overriding a Program.
Programming Additional
Functions
To change display or function (for example,
to °C or °F temperature setting, or to 7-day
or 5-1-1 programming), see Table 6.
Step Press This Key Display Shows Description
Temporarily Overriding a Program
Temporary
(TEMP)
Mode
Changes to TEMPorary mode and
controls at a new temperature until
the next scheduled event (for
example, RETURN).
Indefinitely Overriding a Program
Hold
(HOLD)
Mode
Changes to HOLD mode and controls
at the HOLD temperature indefinitely.
Increases or decreases the HOLD
temperature.
Changes from the HOLD mode to the
RUN mode.