Honeywell T7300D User Manual

Commercial Microelectronic

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 control in the trash.

Contact your local waste management authority for instructions regarding recycling and the proper disposal of the old thermostat.

not

place your old

T7300D Series 2000

Thermostat

INSTALLATION INSTRUCTIONS

ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE OR WALLPLATE.

PRESS LOWER EDGE OF CASE TO LATCH.

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.

M4824A

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.

X-XX UL

62-0132

T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT

ENTER UNOCCUPIED

ENTER OCCUPIED PROGRAM MODE

RETURNS TO NORMAL OPERATIONS

SET OVERRIDE TEMPERATURE OFFSET AND ACTIVATE TEMPORARY OVERRIDE

ENTER HOLD MODE

Program

Temporary

Occupied

Continuous

Unoccupied

PROGRAM MODE

Occupied

Run

Start Time

Set Current

Day/Time

SET CURRENT DAY AND TIME

CLEAR PROGRAM PERIOD

SET CURRENT DAY OR PROGRAM DAY

Mon

Occupied

System Fan

Heat

Set Program Set Temperature Change

Unoccupied

Start Time Day

Clear

Start Time

Copy

COPY ONE PROGRAMMED DAY TO ANOTHER DAY

Fig. 2. Thermostat key locations and descriptions.

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.

Control Occupied Unoccupied

Heating 70°F (21°C) 55°F (13°C) Cooling 78°F (25.5°C) 90°F (32°C)

SET OCCUPIED TEMPERATURE SETPOINTS

Room

Auto

Occupied

Unoccupied

Temp

System Fan

SELECT SYSTEM OPERATION

Temp

Heat/Cool

Settings

SELECT FAN OPERATION

SET UNOCCUPIED TEMPERATURE SETPOINTS AND SCROLLS THROUGH INSTALLER SETUP AND SYSTEM TEST

Time/Temp

CHANGE BETWEEN HEATING AND COOLING SETPOINTS AND SCROLLS BACKWARDS THROUGH INSTALLER SETUP NUMBERS AND SYSTEM TEST

INCREASE TEMPERATURE OR TIME SETTING

DECREASE TEMPERATURE OR TIME SETTING

M10233A

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.

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT

Em Ht

Set Program

Set Day/Time

— 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

M4916

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 correcting 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.

AM PM

Recovery

In Lo

Med

Wait

Temporary Setting Enrg

Room

%Humid

Cool

Auto

Remote

Only

Duct

Auto

Heat

Sav

Set Program Em Ht Aux Ht

Comm Mon

TueWedThuFriSatSun

Occupied 12 Override

System Fan

Off Auto

Heat

Start Time

Cool

Set Day/Time

Fig. 3. Display of all the segments of the LCD.

INSTALLER SETUP NUMBER DISPLAY (COLUMN 2 OF TABLE 2)

FACTORY SETTING OR OTHER CHOICE DISPLAY (COLUMN 3 OR 5 OF TABLE 2)

M10238B

Fig. 4. Display of Installer Setup number and setting.

Table 2. Thermostat Installer Setup Options.

Installer Setup

Number

Select

(Press

Unoccupied

Temp key

to change)

Factory-Setting

Display Description Display Description

Other Choices

(Press ▲ or ▼ key to change)

Not used 1 — — — — — Fan operation 2 0 Conventional applica-

Output stages of heating

Heating cycle rate

3 Depends

on subbase

46Stage 1—4 cph 8 5 6 Stage 2—4 cph

tions where equipment controls fan operation in heat mode

Stages of heat 0, 1, 2,

1 Electric heat applications

or 3

where thermostat controls fan operation in heat mode

0—No heating 1—One stage of heat 2—Two stages of heat 3—Three stages of heat

3, 4, 8, 9 cph

6 6 Stage 3—4 cph Not used 7 — — — — — Output stages

of cooling

8 Depends

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

(continued)

Actual Setting

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT

Table 2. Thermostat Installer Setup Options (Continued).

Installer Setup

Number

(Press

Unoccupied

Temp key

Select

Cooling cycle rate

System setting adjustment (models with System key)

Degree temperature display

Clock format 16 0 12-hour clock format 1 24-hour clock format Intelligent Fan™

operation

Auxiliary Contact Operation

Fan key adjustment (models with Fan key only)

Remote sensing 22 0 Remote sensing not

Keypad lockout level (keypad lockout is enabled and disabled by DIP switch 1 on back of thermostat)

Duration of temporary override

Minimum off time for the compressor

to change)

9 4 Stage 1—4 cph 3 3—3 cph

10 4 Stage 2—4 cph

11 4 Stage 3—4 cph

12 Depends

14 0 Temperature is

17 2 Fan operates

18 0 0—Time of day

21 0 Fan setting key is

25 0 No lockout 1 or 2, 3 1—Lockout all keys on

26 3 3—Three hour

33 4 4 minute minimum off

Factory-Setting

Display Description Display Description

on model

System selection 0, 1 or 2 0—System setting key is

displayed in °F

continuously in Occupied and Recovery mode. Fan operates with call for heating or cooling in Unoccupied mode.

contacts

operational

activated

override

time for the compressor

1 Temperature is displayed in

0 or 1 0—Fan only operates with

1 1—Economizer contacts —

1 Fan setting key is Auto only

1 Remote sensing activated

1, 8 or 12 1—One hour override

0, 1, 2, 3 or 5

Other Choices

(Press ▲ or ▼ key to change)

operational 1—Auto setting is disabled 2—Auto only setting

°C

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.

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

8—Eight hour override 12—Twelve hour override

Minimum number of minutes (0 thru 5) the compressor will be off between calls for the compressor

Actual Setting

(continued)

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Select

Temperature display adjustment

Minimum off times in heating

Installer Setup lockout (keypad lockout is enabled and disabled by DIP switch 1 on back of thermostat)

T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT

Table 2. Thermostat Installer Setup Options (Continued).

Installer Setup

Number

(Press

Unoccupied

Temp key

to change)

37 0 No difference in

38 4 4—4 minute minimum

40 0 0—No Installer Setup

Factory-Setting

Display Description Display Description

displayed temperature and actual room temperature89

off time

lockout

Other Choices

(Press ▲ or ▼ key to change)

1 thru 6

0, 1, 2, 3, or 5

1 1—Installer Setup lockout

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 number of minutes

(0 thru 5) the heating equipment will be off between calls for heat

activated

Actual Setting

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.

Set Current

Day/Time

Set Program Set Temperature Change

Occupied

Run

Start Time

Program

Temporary

Set Current

Occupied

Day/Time

Continous Unoccupied

Time/Temp

Occupied

Unoccupied

Temp

Start Time Day

Temp

Clear

Start Time

Mon

Heat/Cool

Copy

Settings

System Fan

Set Day/Time

M4951B

2. Press Day until the current day is displayed.

NOTE: Sun=Sunday, Mon=Monday,

Tue=Tuesday, Wed=Wednesday, Thu=Thursday, Fri=Friday, Sat=Saturday.

Day

3. Press increase ▲ or decrease ▼ until the current

time is displayed.

NOTE: Tapping the Set Current Day/Time will

Set Program Set Temperature Change

Time/Temp

Occupied

Unoccupied

Occupied

Run

Unoccupied

Temp

Start Time Day

Start Time

Program

Temp

Temporary

Set Current

Clear

Copy

Occupied

Day/Time

Start Time

Continous Unoccupied

Tue

Heat/Cool

Settings

System Fan

change the time in one hour increments.

Set Program Set Temperature Change

Time/Temp

Occupied

Unoccupied

Occupied

Run

Unoccupied

Temp

Start Time Day

Start Time

Program

Temp

Temporary

Set Current

Clear

Copy

Occupied

Day/Time

Start Time

Continous Unoccupied

Tue

Heat/Cool

Settings

System Fan

Set Day/Time

M4952B

M4953B

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT

Em Ht

Set Program

Set Day/Time

4.. Press Run Program.

Run

Program

Set Program Set Temperature Change

Occupied

Run

Start Time

Program

Temporary

Set Current

Occupied

Day/Time

Continous Unoccupied

Time/Temp

Unoccupied

Occupied

Unoccupied

Temp

Start Time Day

Heat/Cool

Clear

Settings

Start Time

Copy

System Fan

Mon

Occupied 1

System Fan

Heat

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.

Test

Number System Test Description

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

Room

Fig. 5 and 6.

Auto

M4954A

Set Program Em Ht Aux Ht

Comm Mon Un

Occupied 12 Override

System Fan

Fig. 5. Display of all the segments of the LCD.

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 70 to 79 Thermostat information including date code,

To start the system test:

Keyboard keys test

software versions and subbase identification are displayed

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.

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

Table 4. Installer System Test Options.

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.

AM PM

Recovery

In Lo

Med

Wait

Temporary Setting Enrg

%Humid

Cool

Auto

Remote

Only

Heat

Set Day/Time

Start Time

TueWedThuFriSatSun

Off Auto

Cool

Heat

TEST NUMBER

Fig. 6. Display of test number.

system test times out after four minutes without any key presses.

(continued)

Sav

Room

Duct

Auto

M4916

M10257A

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT

Table 4. Installer Self-Test Options (Continued).

Key to

Press

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

▼ 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

System 60 11 System test number is displayed.

Fan 60 12 Fan test number is displayed.

Set Current

Day/Time

Run Program 60 15 Run Program test number is displayed.

Temporary

Occupied

Occupied Start Time 60 17 Occupied Start Time test number is displayed.

Continuous

Unoccupied

Test

Number Description

system fan remain on.

60 10 Unoccupied Start Time test number is displayed.

60 14 Set Current Day/Time test number is displayed.

60 16 Temporary Occupied test number is displayed.

60 19 Continuous Unoccupied test number is displayed.

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)

4. Press the increase ▲ key again to display the

software revision number. (Example: 001 = revision number 1)

M4932A

M10229

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT

5. Press the increase ▲ key again to display the

EEPROM identification code. (Example: 314= EEPROM ID 314)

M4933A

6. Press the increase ▲ key again to display the

subbase identification code. (Example: C= conventional subbase)

M10289

7. Press Run Program to exit the system test. The

system test times out after four minutes without any key presses.

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.

BACK OF THERMOSTAT

Fig. 7. Setting the keypad lockout DIP switch 1

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.

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.

Temperature display is incorrect.

Temperature settings will not change. (Example: Cannot set heating higher or cooling lower.)

Thermostat is not being powered.

Room temperature display has been reconfigured.

Thermostat is configured for °F or °C display.

• 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.

Enter Installer Setup number 37 and reconfigure the display.

Enter Installer Setup number 14 and reconfigure the display.

Bad thermostat location. Relocate the thermostat. Display shows two dashes

and a degree sign. Upper or lower temperature

limits were reached.

The setpoint temperature range stops were configured.

Keypad is locked. When a locked key is pressed, LOC will flash on the LCD.

Installer Setup 22 is set for remote sensing and the sensor is missing or the circuit is open or shorted.

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)

Check Installer Setup number 34 and 35 and reconfigure the setpoint stops.

• Reset DIP switch 1 on back of thermostat to enable keypad.

on the back of the thermostat.

DIP 1 IS ON

DIP 2 IS NOT USED.

M10235

(continued)

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT

TROUBLESHOOTING GUIDE (Continued).

Symptom Possible Cause Action

Temperature settings change from original setting.

Room temperature is out of control.

Heating will not come on.

Cooling will not come on.

System on indicator (flame=heat, snowflake=cool) is displayed, but no warm or cool air is coming from the registers.

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.

Remote temperature sensing is not working.

No power to the thermostat. • Check that X terminal is connected to the system

Thermostat minimum off time is activated and wait indicator is displayed.

System selection is not set to Heat.

No power to the thermostat. • Check that X terminal is connected to the system

Thermostat minimum off time is activated and wait indicator is displayed.

System selection is not set to Cool.

Fan operation set for 0 (conventional heat) when it should be set for 1 (electric heat).

Conventional heating equipment turns on the fan when the furnace has warmed up to a setpoint.

Heating or cooling equipment is not operating.

• Check that the heating setpoint is lower than the cooling setpoint.

Checkout all remote sensors.

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.

•Wait up to five minutes for the system to respond.

• Enter Installer Setup number 38. Reconfigure minimum off time (if required).

Set system selection to Heat.

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.

•Wait up to five minutes for the system to respond.

• Enter Installer Setup number 33. Reconfigure minimum off time (if required).

Set system selection to Cool.

Enter Installer Setup number 2 and reconfigure the fan operation.

Wait a minute after seeing the on indicator and then check the registers.

Verify operation of heating or cooling equipment in self-test.

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT

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T7300D SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTAT

Home and Building Control

Honeywell Inc. Honeywell Plaza P.O. Box 524 Minneapolis, MN 55408-0524

62-0132 D.A. 3-99

62-0132

Home and Building Control

Honeywell Limited-Honeywell Limitée 155 Gordon Baker Road North York, Ontario M2H 3N7

www.honeywell.com/yourhome

Honeywell T7300D User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual