Honeywell programmable thermostat User Manual

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63-2652—01
T7351 Programmable Thermostat
FOR CONVENTIONAL/HEAT PUMP SYSTEMS
FEATURES
• Typically used in buildings (including: restaurants, shopping malls, office buildings and banks) under 55,000 square feet.
• For single zone rooftop units, split systems, heat pumps or hot/chilled water systems.
• 7-day programming.
• Two Occupied and two Not Occupied periods per day.
• Keypad multi-level lockout available with all models.
• Individual heat and cool setpoints available for Occupied and Not Occupied periods.
• Convenient overrides allow temporary setpoint changes.
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• Intelligent Fan™ feature energizes fan continuously in the Occupied periods. Fan can also be configured for conventional heat or electric heat fan operation.
• Remote sensor capability for temperature (including outdoor air and discharge air) and humidity sensors.
• Recovery ramping control automatically optimizes equipment start times based on building load.
• Universal Versaguard™ Thermostat guards available.
• Auxiliary subbase contact typically interface with a Honeywell Economizer System (for total rooftop control integration) or act as dehumidification output.

SETTINGS

Using Thermostat Keys

The thermostat keys are used to:
• set current time and day,
• program times and setpoints for heating and cooling,
• override the program temperatures,
• display present setting,
• set system and fan operation,
• perform simple configuration.
Table 1. Default Setpoints.
Control Occupied Not Occupied Standby
Heating 70°F (21°C) 55°F (13°C) 67°F (19°C)
Cooling 75 °F (24 °C) 85 °F (29 °C) 78 °F (26 °C)
NOTE: See Fig. 1 for keypad information.

Setting Temperature

Refer to Table 1 for default temperature setpoints. See Programming section for complete instructions on changing these.
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Setting System and Fan

System default setting is Auto. The fan default is set so the fan operates continuously during: — Occupied periods, — Heating and cooling equipment stages in
Not Occupied and recovery periods.
NOTE: Use System and Fan keys to change
settings.
System Settings
— Auto: Thermostat automatically changes
between heating and cooling based on sensed indoor temperature.
— Cool: Thermostat controls cooling. — Off: Heating, cooling, and fan are all off. — Heat: Thermostat controls heating. — Em Heat: Auxiliary heat serves as first stage.
Compressor stages are locked off.
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Fan Settings
— On: Fan operates continuously in occupied
and standby periods. Fan cycles with call for heat or cool during not occupied periods.
— Auto: Fan cycles with call for heating or
cooling during occupied, standby, and not occupied periods.
NOTE: This is further modified by selection of
conventional or electric heat.

PROGRAMMING

The thermostat operates at the Occupied temperature setting unless the thermostat is programmed. The program has four settings: — Occupied heat. — Occupied cool. — Not Occupied heat. — Not Occupied cool. The thermostat can be set for two Occupied and two Not Occupied times for each day of the week (28 independent time settings). The Temporary Occupied key provides quick setpoint changes for increased comfort during Not Occupied periods. The Temporary Not Occupied key provides energy efficient operation for extended periods of time.
IMPORTANT
Programming the thermostat with the keypad requires 24 Vac (turn on sys­tem power). The keyboard lockout feature must be disabled.
NOTE: Before starting programming, use
Table 2 to organize the program schedule.
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Table 2. Occupied and Not Occupied Period Start Times.
Day
Occupied
Period 1
Not Occupied
Period 1
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
NOTE: 12:00 PM is noon, and 12:00 AM is midnight.
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Occupied
Period 2
Not Occupied
Period 2
Temperature
Occupied
HEAT HEATCOOL COOL
Not Occupied
Set Day/Time
Day Time
Override
Temporary
Occupied
Tem po rar y
Not Occupied
Schedule
Clear
Start Time
Fig. 1. Thermostat key locations.
When using the keypad to change the day/time:
1. Press Set Day until the current day is displayed.
NOTE: Sun = Sunday, Mon = Monday,
Tue = Tuesday, Wed = Wednesday, Thu = Thursday,
System Fan
HEAT COOL
CopyNot OccupiedOccupiedDay
ON AUTO
Run
Schedule
M19610BB
Fri = Friday, Sat = Saturday.
2. Press Set Time.
3. Press up S or down T until the current
time is displayed.
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NOTE: Tapping Set Time changes the
time in one hour increments.
4. Press Run Schedule.

Copying a Day

Use the keys in the “Schedule” area of the keypad for this procedure.

Setting Schedule Times

Use the keys in the “Schedule” area of the keypad for this procedure.
1. Press Occupied.
NOTE: Anytime a start time is not
required, press Clear Start Time.
2. Press Day until desired day is displayed.
3. Press Occupied or Not Occupied until the
proper period is displayed.
4. Press up S or down T until the desired start time is displayed.
5. Repeat steps 3 and 4 for a given day.
6. Repeat steps 2 through 5 until finished.
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NOTE: The thermostat must be in program
mode to use the copy feature. If the thermostat is already in program mode, skip step 1.
1. Press Occupied.
2. Press Day to select the day to be copied.
3. Press Copy.
4. Press Copy again.
5. Press Day until the day to receive the
copy is displayed.
6. Press Copy.
NOTE: DONE displays for two seconds
then the program display reap­pears.
7. Repeat steps 2 through 6 for all the days desired.
8. Press Run Schedule.

Clearing Program Start Times

1. Press Occupied or Not Occupied until the
start period to be cleared is displayed.
2. Press Day until desired day is displayed.
3. Press Clear Start Time.
4. Repeat steps 1 through 3 for all the start
times to be cleared.
5. Press Run Schedule.

Temperature Setpoints

Setpoint Limits
The setpoint temperature range is 40 to 90 °F (4 to 32 °C) for heating and 45 to 99 °F (7 to 37 °C) for cooling.
NOTE: These limits may be restricted by the
installer to comply with local energy codes.
Programming Temperature Setpoints
1. Press Occupied Heat.
2. Press up S or down T until the desired
temperature is displayed.
3. Press Occupied Cool.
4. Press up S or down T until the desired
temperature is displayed.
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5. Press Not Occupied Heat.
6. Press up S or down T until the desired
temperature is displayed.
7. Press Not Occupied Cool.
8. Press up S or down T until the desired
temperature is displayed.
9. Press Run Schedule.

Temperature Setpoint Overrides

IMPORTANT
— Setup determines Occupied override
duration.
— Default duration is three hours.
NOTE: To cancel Override and immediately
return to the program, press Run Schedule.
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TR23 Setpoint Knob
A TR23 setpoint knob can remotely adjust the T7350 setpoint. This adjustment can be made when the sensor is in override.
NOTES:
During override, only occupied and
standby heat setpoints, and cool setpoints are adjusted.
The maximum adjustment is ±5 °F
(±3 °C).
With a disconnected or failed TR23
or a T7350 set for local tempera­ture sensing, offset is zero.
Using Temporary Occupied Override
The Temporary Occupied Override can be used when the T7350 is in Not Occupied or Standby mode. It switches to the Occupied mode for a fixed number of hours.
Using Temporary Not Occupied Override
The Temporary Not Occupied Override fixes the device to operate in Not Occupied mode for a number of days (between 1 and 99) without changing the programming saved in memory.
1. To use the default occupied override, press Temporary Occupied.
NOTE: The default temperature setting
is the Occupied setpoint.
2. To select a temperature setting other than the default, press up S or down T until desired temperature offset displays (range is configurable by the installer from 0 to 5 °F (0 to 3 °C)).
NOTES:
If the number of days is set to zero,
no temporary change takes effect.
If the number of days is set just
below zero, the display for days is “---” (an indefinite override).
To turn off this override, you must
press Run Schedule.
1. Press Temporary Not Occupied.
2. Press up S or down T to change the
duration of the Not Occupied period (in days).
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NOTE: The default temperature setting
is the Not Occupied setpoint.
3. Press to display the default setpoint.
NOTE: The only way to change this
setpoint is to change the Not Occupied setpoint.
Automation and Control Solutions
Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422
Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Toronto, Ontario M1V 4Z9 yourhome.honeywell.com
® U.S. Registered Trademark © 2010 Honeywell International Inc. 63-2652—01 K.K. Rev. 05-10 Printed in U.S.A.

Changing Temperature Setpoint Until Next Program Period

1. Press up S or down T until the desired
temperature is displayed.
2. The temporary temperature appears for approximately ten seconds, then the room temperature is displayed.
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