Honeywell SERIES 2000 T7300D User manual

X-XX UL
INSTALLATION INSTRUCTIONS
®U.S. Registered Trademark
Copyright © 1998 Honeywell Inc. • • All Rights Reserved
T7300D Series 2000
Commercial Microelectronic
Thermostat
APPLICATION
The T7300D Series 2000 Commercial Microelectronic
Thermostat provides electronic control of 24 Vac
commercial single zone heating, ventilating and air
conditioning (HVAC) equipment. It is designed for use
with Q7300A,G,L subbases for conventional heat/cool
applications. The T7300D is field configurable for
automatic or manual changeover between heating and
cooling. The system and fan selections are done by a
keyboard entry. All T7300D Thermostats require a
common wire to supply power.
RECYCLING NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do
not place your old
control in the trash.
Contact your local waste management authority for
instructions regarding recycling and the proper
disposal of the old thermostat.
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow
the instructions can damage the product or cause a
hazardous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
3. Installer must be a trained, experienced service
technician.
4. After completing installation, use these instructions
to check out the product operation.
Mounting Thermostat on Subbase
The thermostat mounts on the subbase after it is installed.
1. Engage tabs at the top of thermostat and subbase.
See Fig. 1.
2. Press lower edge of case to latch.
NOTE: To remove the thermostat from the wall, first pull
out at the bottom of the thermostat; then remove
the top.
Fig. 1. Mounting thermostat on subbase.
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,
•configure Installer Setup,
•check Installer System Test.
See Fig. 2 for key information.
M4824A
B. PRESS LOWER EDGE OF CASE TO LATCH.
A. ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE OR WALLPLATE.
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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT
Setting System and Fan (select models)
The system default setting is Heat. The fan default is set
so the fan operates continuously in Occupied and Recovery
mode and with the heating or cooling equipment in
Unoccupied mode. Use the System and Fan keys to
change the settings.
The system settings are:
Heat: Thermostat controls the heating.
Off: Both the heating and cooling are off.
Cool: Thermostat controls the cooling.
Auto: Thermostat automatically changes between
heating and cooling operation depending on the
indoor temperature.
The fan settings are:
On: Fan operates continuously.
Auto: Equipment controls fan.
Setting Temperature
Refer to Table 1 for the default temperature setpoints. See
Owners Guide form number 63-4356 for complete
instructions on changing the setpoints.
Table 1. Default Temperature Setpoints.
INSTALLER SETUP
NOTE: For most applications, the thermostat factory-
settings do not need to be changed. Review the
factory-settings in Table 2 and if no changes are
necessary, go to the Installer Self-Test section.
The Installer Setup is used by the installer to customize
the thermostat to specific systems. Installer Setup
numbers are listed in Table 2. The table includes all the
configuration options available.
A combination of key presses are required to use the
Installer Setup feature.
—To enter the Installer Setup, press and hold the Heat/
Cool Settings key with both the increase ▲ and ▼
decrease keys until the first number is displayed. All
display segments appear for approximately three
seconds before the number is displayed. See Fig. 3
and 4.
Fig. 2. Thermostat key locations and descriptions.
Control Occupied Unoccupied
Heating 70°F (21°C) 55°F (13°C)
Cooling 78°F (25.5°C) 90°F (32°C)
Set Program Set Temperature Change
Time/Temp
Occupied
Temp
Unoccupied
Start Time Day
System Fan
Copy
Occupied
Start Time
Run
Program
Temporary
Occupied
Continuous
Unoccupied
Set Current
Day/Time Clear Start Time
Unoccupied
Temp
Heat/Cool
Settings
Auto
System Fan
Mon
Room
AM
Occupied
Heat
M10233A
SET OVERRIDE
TEMPERATURE
OFFSET AND
ACTIVATE
TEMPORARY
OVERRIDE
ENTER HOLD MODE SET CURRENT
DAY AND TIME
CLEAR PROGRAM PERIOD COPY ONE
PROGRAMMED DAY
TO ANOTHER DAY
SELECT FAN
OPERATION
SELECT
SYSTEM
OPERATION
CHANGE BETWEEN HEATING
AND COOLING SETPOINTS
AND SCROLLS BACKWARDS
THROUGH INSTALLER SETUP
NUMBERS AND SYSTEM TEST
DECREASE
TEMPERATURE
OR TIME SETTING
INCREASE
TEMPERATURE
OR TIME SETTING
SET UNOCCUPIED TEMPERATURE
SETPOINTS AND SCROLLS
THROUGH INSTALLER SETUP
AND SYSTEM TEST
SET OCCUPIED
TEMPERATURE
SETPOINTS
SET CURRENT DAY OR
PROGRAM DAY
ENTER UNOCCUPIED
PROGRAM MODE
ENTER OCCUPIED
PROGRAM MODE
RETURNS TO
NORMAL
OPERATIONS

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT
Heat
Auto
System Fan
Off Auto
Un
Mon
Wait
Lo
In
Room
Remote
%Humid
Auto
Sav
AM
PM
Comm Cool Duct
Only
On
Recovery
Hi
Med
Cool
TueWedThuFriSatSun
Occupied 12 Override
M4916
Aux Ht
Aux Ht
Em Ht
Em Ht
Set Program
Set Program
Set Day/Time
Set Day/Time
Start Time Temporary Setting Enrg
Em Heat
Fig. 3. Display of all the segments of the LCD.
—To advance to the next Installer Setup number, press
the Unoccupied Temp key.
—To return to a previous Installer Setup number, press
the Heat/Cool Settings key.
—To change a setting, use the increase ▲ or ▼
decrease key.
—To exit the Installer Setup, press the Run Program
key. The Installer Setup is automatically exited if no
key presses are made for four minutes.
Installer Setup numbers are listed in Table 2.
CAUTION
Electric heat systems must be configured correct-
ing in Installer Setup 2 to prevent equipment
damage caused by the system running without
the fan.
IMPORTANT
Only configurable numbers are shown on the
device. Example: If thermostat does not have a
system key, Installer Setup Number 12 will not be
displayed. Review Table 2 factory-settings and
mark any desired changes in the Actual Setting
column. When Installer Setup is complete,
review the settings to confirm that they match
the system.
Fig. 4. Display of Installer Setup number and setting.
M10238B
INSTALLER SETUP
NUMBER DISPLAY
(COLUMN 2
OF TABLE 2)
FACTORY SETTING
OR OTHER CHOICE
DISPLAY (COLUMN 3
OR 5 OF TABLE 2)
Table 2. Thermostat Installer Setup Options.
(continued)
Installer Setup
Number
(Press
Unoccupied
Temp key Factory-Setting Other Choices
(Press ▲or ▼key to change) Actual
Select to change) Display Description Display Description Setting
Not used 1 — — — — —
Fan operation 2 0 Conventional applica-
tions where equipment
controls fan operation
in heat mode
1Electric heat applications
where thermostat controls
fan operation in heat mode
Output stages of
heating 3 Depends on
subbase
Stages of heat 0, 1, 2,
or 3 0—No heating 1—One stage of heat
2—Two stages of heat
3—Three stages of heat
Heating cycle 46Stage 1—4 cph 8 3, 4, 8, 9 cph
rate 5 6 Stage 2—4 cph
6 6 Stage 3—4 cph
Not used 7 — — — — —
Output stages
of cooling 8Depends on
subbase
Three stages of cool 0, 1, 2
or 3 0—No cooling 1—One stage of cool
2—Two stages of cool
3—Three stages of cool

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT
Table 2. Thermostat Installer Setup Options (Continued).
(continued)
Installer Setup
Number
(Press
Unoccupied
Temp key Factory-Setting
Other Choices
(Press ▲or ▼key to change) Actual
Select to change) Display Description Display Description Setting
Cooling cycle 9 4 Stage 1—4 cph 3 3—3 cph
rate 10 4 Stage 2—4 cph
11 4 Stage 3—4 cph
System setting
adjustment
(models with
System key)
12 Depends
on model System selection 0, 1 or 2 0—System setting key is operational
1—Auto setting is disabled
2—Auto only setting
Degree tempera-
ture display 14 0 Temperature is displayed in °F1Temperature is displayed in °C
Clock format 16 0 12-hour clock format 1 24-hour clock format
Intelligent Fan™
operation 17 2 Fan operates continuously in
Occupied and
Recovery mode. Fan
operates with call for
heating or cooling in
Unoccupied mode.
0 or 1 0—Fan only operates with
calls for heating or cooling
in Occupied and
Unoccupied modes.
1—Fan operates
continuously in Occupied
mode. Fan operates with
calls for heating or cooling
in Unoccupied mode.
Auxiliary Contact
Operation 18 0 0—Time of day contacts 11—Economizer contacts —
Extended fan
operation in
heating
19 0 No extended fan
operation after the call
for heat ends
1Fan operation is extended
90 seconds after the call for
heat ends.
Fan key
adjustment
(models with Fan
key only)
21 0 Fan setting key is
operational 1Fan setting key is Auto only
Remote sensing 22 0 Remote sensing not
activated 1Remote sensing activated
Keypad lockout
level (keypad
lockout is
enabled and
disabled by DIP
switch 1 on back
of thermostat)
25 0 No lockout 1 or 2, 3 1—Lockout all keys on
thermostat except system
and fan settings, temporary
setpoint, clock and day
adjustments
2—Lockout all keys except
Set Current Day/Time,
increase ▲ and decrease
▼ keys.
3—Lockout all keys except
Temporary Occupied, Set
Day and Clock keys
Duration of
temporary
override
26 3 3—Three hour
override 1, 8 or 12 1—One hour override 8—Eight hour override
12—Twelve hour override
Minimum off time
for the
compressor
33 4 4 minute minimum off
time for the
compressor
0, 1, 2, 3
or 5 Minimum number of minutes (0 thru 5) the compressor will
be off between calls for the
compressor

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT
Table 2. Thermostat Installer Setup Options (Continued).
Installer Setup
Number
(Press
Unoccupied
Temp key Factory-Setting
Other Choices
(Press ▲or ▼key to change) Actual
Select to change) Display Description Display Description Setting
Temperature
display
adjustment
37 0 No difference in
displayed temperature
and actual room
temperature89
1 thru 6 1—Display adjusts to 1°F
higher than actual room
temperature
2—Display adjusts to 2°F
higher than actual room
temperature
3—Display adjusts to 3°F
higher than actual room
temperature
4—Display adjusts to 1°F
lower than actual room
temperature
5—Display adjusts to 2°F
lower than actual room
temperature
6—Display adjusts to 3°F
lower than actual room
temperature
Minimum off
times in heating 38 4 4—4 minute minimum off time 0, 1, 2, 3, or 5 Minimum number of minutes (0 thru 5) the heating
equipment will be off
between calls for heat
Installer Setup
lockout (keypad
lockout is
enabled and
disabled by DIP
switch 1 on back
of thermostat)
40 0 0—No Installer Setup
lockout 11—Installer Setup lockout activated
IMPORTANT
Review the settings to confirm that they match
the system. Press Run Program to exit the
Installer Setup. Be sure to set the current day
and time immediately.
Setting Current Day and Time
1. Press Set Current Day/Time.
NOTE: On initial power up or after an extended
power loss, 1:00 pm flashes on the LCD
until a key is pressed.
2. Press Day until the current day is displayed.
NOTE: Sun=Sunday, Mon=Monday,
Tue=Tuesday, Wed=Wednesday,
Thu=Thursday, Fri=Friday, Sat=Saturday.
M4951B
Set Current
Day/Time
SetProgram SetTemperature Change
Time/Temp
Occupied
Temp
Unoccupied
StartTime Day
System Fan
Copy
Occupied
StartTime
Run
Program
Temporary
Occupied
Continous
Unoccupied
SetCurrent
Day/Time Clear StartTime
Unoccupied
Temp
Heat/Cool
Settings
Mon
PM
Set Day/Time
M4952B
SetProgram SetTemperature Change
Time/Temp
Occupied
Temp
Unoccupied
StartTime Day
System Fan
Copy
Occupied
StartTime
Run
Program
Temporary
Occupied
Continous
Unoccupied
SetCurrent
Day/Time Clear StartTime
Unoccupied
Temp
Heat/Cool
Settings
Day
PM
Tue
Set Day/Time
3. Press increase ▲or decrease ▼until the current
time is displayed.
NOTE: Tapping the Set Current Day/Time will
change the time in one hour increments.
M4953B
SetProgram SetTemperature Change
Time/Temp
Occupied
Temp
Unoccupied
StartTime Day
System Fan
Copy
Occupied
StartTime
Run
Program
Temporary
Occupied
Continous
Unoccupied
SetCurrent
Day/Time Clear StartTime
Unoccupied
Temp
Heat/Cool
Settings
PM
Tue
Set Day/Time

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT
Table 4. Installer System Test Options.
Heat
Auto
System Fan
Off Auto
Un
Mon
Wait
Lo
In
Room
Remote
%Humid
Auto
Sav
AM
PM
Comm Cool Duct
Only
On
Recovery
Hi
Med
Cool
TueWedThuFriSatSun
Occupied 12 Override
M4916
Aux Ht
Aux Ht
Em Ht
Em Ht
Set Program
Set Program
Set Day/Time
Set Day/Time
Start Time Temporary Setting Enrg
Em Heat
M10257A
TEST NUMBER
4.. Press Run Program.
INSTALLER SYSTEM TEST
Use the Installer System Test to check the thermostat
configurations and operation. Refer to Table 3 for a list of
the available system tests.
Table 3. Tests Available in Installer System Test.
Fig. 6. Display of test number.
Refer to Table 4 and Thermostat Information section for
directions and results of the specific system tests.
NOTE: Press Run Program to exit the system test. The
system test times out after four minutes without
any key presses.
M4954A
SetProgram SetTemperature Change
Time/Temp
Occupied
Temp
Unoccupied
StartTime Day
System Fan
Copy
Occupied
StartTime
Run
Program
Temporary
Occupied
Continous
Unoccupied
SetCurrent
Day/Time Clear StartTime
Unoccupied
Temp
Heat/Cool
Settings
Auto
System Fan
Mon
Room
AM
Occupied 1
Heat
Run
Program
To start the system test:
CAUTION
The minimum off time for compressors is bypassed
during the Installer System Test. Equipment
damage can occur if the compressor is cycled too
quickly.
Press and hold the increase ▲ and ▼ decrease keys, at
the same time, until 10 appears. All segments of the LCD
are displayed for three seconds before 10 appears. See
Fig. 5 and 6.
Fig. 5. Display of all the segments of the LCD.
(continued)
Key to
Press Test Number Description
Heating Equipment System Test
Heat/Cool Settings 10 Enter heating equipment system test.
▲11 Stage-one heat comes on. When Installer Setup number 02 is 01, the system fan
is also energized.
▲12 Stage-two heat comes on. Stage-one heat and system fan remain on.
▲13 Stage-three heat comes on. Stage-one and stage-two heat with the system fan
are on.
▼12 Stage-three heat turns off.
▼11 Stage-two heat turns off.
▼10 Stage-one heat and system fan turn off.
Test
Number System Test Description
10 to 19 Heating equipment can be turned on and off
30 to 39 Cooling equipment can be turned on and off
40 to 49 Fan equipment can be turned on and off
60 0 to
60 19 Keyboard keys test
70 to 79 Thermostat information including date code,
software versions and subbase identification
are displayed

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT
Thermostat Information
1. Press the Heat/Cool Settings key to access the
thermostat information.
M4934
2. Press the increase ▲ key to display the production
date code. The first two large digits are the month
and the third digit is the last digit of the year.
(Example: 036 = March 1996)
M4931
3. Press the increase ▲ key again to display the
software identification code. (Example: 02 =
software ID code 2)
M4932A
4. Press the increase ▲ key again to display the
software revision number. (Example: 001 = revision
number 1)
M10229
Table 4. Installer Self-Test Options (Continued).
Key to
Press Test Number Description
Cooling Equipment System Test
Heat/Cool Settings 30 Change from heating to cooling equipment system test.
▲31 Stage-one cooling and system fan come on.
▲32 Stage-two cool comes on. Stage-one cool and system fan remain on.
▲33 Stage-three cool comes on (Q7300G only). Stage-one and stage-two cool with
system fan remain on.
▼32 Stage-three cool turns off.
▼31 Stage-two cool turns off.
▼30 Stage-one cool and system fan turn off.
Fan Equipment System Test
Heat/Cool Settings 40 Change from cooling to fan equipment system test.
▲41 Fan comes on.
▼40 Fan turns off.
Key Operation System Test
Heat/Cool Settings 60 2 Change from fan to key operation system test.
Unoccupied Temp 60 0 Unoccupied Temp test number is displayed.
Occupied Temp 60 1 Occupied Temp test number is displayed.
▲ 60 3 Increase test number is displayed.
▼ 60 5 Decrease test number is displayed.
Clear Start Time 60 7 Clear Start Time test number is displayed.
Day 60 8 Day test number is displayed.
Copy 60 9 Copy test number is displayed.
Unoccupied Start
TIme 60 10 Unoccupied Start Time test number is displayed.
System 60 11 System test number is displayed.
Fan 60 12 Fan test number is displayed.
Set Current
Day/Time 60 14 Set Current Day/Time test number is displayed.
Run Program 60 15 Run Program test number is displayed.
Temporary
Occupied 60 16 Temporary Occupied test number is displayed.
Occupied Start Time 60 17 Occupied Start Time test number is displayed.
Continuous
Unoccupied 60 19 Continuous Unoccupied test number is displayed.

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT
ON
12
M10235
BACK OF THERMOSTAT
1
2
1
2
DIP 1 IS ON
DIP 2 IS NOT USED.
5. Press the increase ▲ key again to display the
EEPROM identification code. (Example: 314=
EEPROM ID 314)
6. Press the increase ▲ key again to display the
subbase identification code. (Example: C=
conventional subbase)
M4933A
7. Press Run Program to exit the system test. The
system test times out after four minutes without any
key presses.
Setting Keypad Lockout Switch
The DIP switch 1 on the back of the thermostat activates
the lockout feature. The switch must be set to the ON
position (up) to activate the lockout feature. See Fig. 7.
The factory-setting is off (down). Remove the thermostat
from the subbase and set the switch to ON if keypad
lockout is desired. Setting DIP switch 1 to the ON position
disables all of the keys on the thermostat.
M10289
(continued)
Fig. 7. Setting the keypad lockout DIP switch 1
on the back of the thermostat.
NOTE: DIP switch 1 should be set to ON prior to entering
Installer setup. This only applies when changing
Installer setup number 25 or 40.
TROUBLESHOOTING GUIDE
Symptom Possible Cause Action
Display will not
come on. Thermostat is not being powered. • Check that X terminal is connected to the system transformer.
• Check for 24 Vac between X and R or RH terminals.
— If missing 24 Vac:
— check if the circuit breaker is tripped—reset the
circuit breaker.
— check if the system fuse is blown—replace the
fuse.
— check if the power switch on the HVAC
equipment is in the Off position—set to the On
position.
— check wiring between thermostat and HVAC
equipment—replace any broken wires and tighten
any loose connections.
— If 24 Vac is present, proceed with troubleshooting.
Temperature display
is incorrect. Room temperature display has been reconfigured. Enter Installer Setup number 37 and reconfigure the display.
Thermostat is configured for
°F or °C display. Enter Installer Setup number 14 and reconfigure the display.
Bad thermostat location. Relocate the thermostat.
Display shows two dashes
and a degree sign. Installer Setup 22 is set for remote sensing and the sensor is missing or the circuit is open or shorted.
Temperature settings
will not change.
(Example: Cannot
Upper or lower temperature
limits were reached. Check the temperature setpoints: • Heating limits are 40 to 90°F (7 to 31°C)
• Cooling limits are 45 to 99°F (9 to 37°C)
set heating higher or
cooling lower.) The setpoint temperature
range stops were configured. Check Installer Setup number 34 and 35 and reconfigure the setpoint stops.
Keypad is locked. When a
locked key is pressed, LOC
will flash on the LCD.
• Reset DIP switch 1 on back of thermostat to enable
keypad.

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT
TROUBLESHOOTING GUIDE (Continued).
Symptom Possible Cause Action
Temperature
settings change
from original
setting.
Trying to set heating and
cooling setpoints too close
together. There is a deadband
in automatic changeover
thermostats. Example: cool
setpoint=72, deadband=3, heat
setpoint=68, changing heat
setpoint to 70 will automatically
change the cool setpoint to 73.
•Check that the heating setpoint is lower than the cooling
setpoint.
Room temperature
is out of control. Remote temperature sensing is not working. Checkout all remote sensors.
Heating will not
come on. No power to the thermostat. • Check that X terminal is connected to the system transformer.
•Check for 24 Vac between X and R or RH terminals.
— If missing 24 Vac:
— check if the circuit breaker is tripped—reset the
circuit breaker.
— check if the system fuse is blown—replace the
fuse.
— check if the system switch at the equipment is in
the Off position—set to On position.
— check wiring between thermostat and HVAC
equipment—replace any broken wires and tighten
any loose connections.
— If 24 Vac is present, proceed with troubleshooting.
Thermostat minimum off time is
activated and wait indicator is
displayed.
•Wait up to five minutes for the system to respond.
•Enter Installer Setup number 38. Reconfigure minimum off
time (if required).
System selection is not set to
Heat. Set system selection to Heat.
Cooling will not
come on. No power to the thermostat. • Check that X terminal is connected to the system transformer
•Check for 24 Vac between X and R or RC and Y terminals.
— If missing 24 Vac:
— check if the circuit breaker is tripped—reset the
circuit breaker.
— check if the system fuse is blown—replace the
fuse.
— check if the system switch at the equipment is in
the Off position—set to the On position.
— check wiring between thermostat and HVAC
equipment—replace any broken wires and tighten
any loose connections.
— If 24 Vac is present, proceed with troubleshooting.
Thermostat minimum off time is
activated and wait indicator is
displayed.
•Wait up to five minutes for the system to respond.
•Enter Installer Setup number 33. Reconfigure minimum off
time (if required).
System selection is not set to
Cool. Set system selection to Cool.
System on indicator
(flame=heat,
snowflake=cool) is
displayed, but no
Fan operation set for 0
(conventional heat) when it
should be set for 1
(electric heat).
Enter Installer Setup number 2 and reconfigure the fan
operation.
warm or cool air is
coming from the
registers.
Conventional heating
equipment turns on the fan
when the furnace has
warmed up to a setpoint.
Wait a minute after seeing the on indicator and then check the
registers.
Heating or cooling equipment is
not operating. Verify operation of heating or cooling equipment in self-test.

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT