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

A.

ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE OR WALLPLATE.

B.

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.

®U.S. Registered Trademark
Copyright © 1999 Honeywell Inc. • • All Rights Reserved

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

AM

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.

62-0132

2

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

On

Duct

Auto

Heat

Hi

Sav

Set Program
Em Ht
Aux Ht

Comm
Mon

TueWedThuFriSatSun

Un

Occupied 12 Override

System Fan

Off Auto

Heat

Em

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

3

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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)

62-0132

4