Honeywell Series 2000 T7300D Users Manual T7200D,E, T7300D,E,F And Q7300 Programmable Commercial Thermostats Subbases

TRADELINE Q7300L 63-4355

2015-01-23

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T7200D,E, T7300D,E,F and Q7300
Series 2000 Programmable Commercial
Thermostats and Subbases
PRODUCT DATA
T7200D,E Thermostats:
• Use on single-stage conventional (T7200D) or heat
pump (T7200E) applications.
T7300D,E Thermostats:
• Use on multistage conventional (T7300D) or heat pump
(T7300E) applications.
• Models available with remote sensor capability.
T7300F Thermostats:
• Use on single-stage or multistage system in
conventional or heat pump applications.
• Auxiliary contacts on Q7300 can be used to interface
with C7400/W7459 Economizer System for total
integration of rooftop control.
• Remote temperature sensors available for use with
all models.
• Different levels of keypad lockout available.

APPLICATION
The T7200, T7300 Thermostats and Q7300 Subbases control
24 Vac commercial single zone heating, ventilating and air
conditioning (HVAC) equipment. In addition, the Q7300H
Communicating Subbase can communicate schedule
information and system instructions to other devices in a
LONWORKS® network.

FEATURES
All Models:
• 7-day programming.
• Two Occupied and two Unoccupied periods per day.
• Individual heat and cool setpoints available for
Occupied and Unoccupied periods.
• Proportional plus Integral (P+I) control eliminates
temperature fluctuations.
• Intelligent Recovery® control automatically optimizes
equipment start times based on building load.
• Intelligent Fan™ feature energizes fan continuously in
the Occupied periods. Fan can also be configured for
conventional heat or electric heat fan operation.
• Automatic or manual changeover models available.
• Universal Versaguard™ Thermostat guards available.
• Convenient overrides allow temporary setpoint
changes.
• Keypad lockout available.

® U.S. Registered Trademark
Copyright © 2001 Honeywell •

Q7300 Subbase:
• Use with T7300D,E,F Thermostats.
• Auxiliary contacts can be used to interface with
C7400/W7459 Economizer System for total integration
of rooftop control.
• When used with the T7300F (revision 4 or later), the
Q7300H communicates with other network devices.
• Q7300L two stages of heat control ML7984 and V5011/
V5013 valve: stage 1 opens valve 40%; stage 2 100%.
• Q7300L provides two-speed fan control:
— Low: heat and occupied fan.
— High: cooling.

Contents
Application ........................................................................
Features ...........................................................................
Specifications ...................................................................
Ordering Information ........................................................
Installation ........................................................................
Wiring Subbase/Wallplate ................................................
Settings ............................................................................
Installer Setup ..................................................................
Installer System Test ........................................................
Programming ....................................................................
Operation ..........................................................................
General Operation Information .........................................
Troubleshooting Guide .....................................................
Cross Reference ..............................................................
Wiring Diagrams (Fig. 20-34) ...........................................

1
1
2
2
5
7
9
10
13
16
19
21
22
23
29

63-4355-4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

SPECIFICATIONS
IMPORTANT
The specifications given in this publication do
not include normal manufacturing tolerances.
Therefore, this unit might not exactly match the listed
specifications. This product is tested and calibrated
under closely controlled conditions, and some minor
differences in performance can be expected if those
conditions are changed.

T7200/T7300 Thermostats: See Table 1.
Q7300 Subbases: See Table 2.
Dimensions: See Fig. 1.
Finish (color): Taupe.

Table 1. T7200 and T7300 Thermostat Features.
Model

Maximum Stages

Subbase
Required

Applications

Heat

T7200D

Conventional

Nonea

T7200E

Heat Pump

Nonea

T7300D

Conventional

Q7300A,G,L

22-23, 28, 34

T7300E

Heat Pump

Q7300C,D

24-27

T7300F

Conventional or
Heat Pump

Q7300A,C,D,G,L 3

22-28,34

Q7300H

29-33

a
b

Changeoverb

Wiring Diagram

Cool

Automatic or
Manual

Wallplate provided.
Configured in Installer Setup.
Table 2. Q7300 Subbase Features.

Model

Applications

Maximum Stagesa,b

Thermostat
Required

Heat

Cool

Wiring Diagram

Q7300A

Conventional

T7300D,F

22-23

Q7300C

Heat Pump

T7300E,F

24-26

Q7300D

Heat Pump

T7300E,F

Q7300G

Conventional

T7300D,F

Q7300Hc

Heat Pump

T7300F

Q7300Hd

Heat Pump

T7300F

Q7300H

Conventional

T7300F

Q7300H

Conventional

Q7300L
a
b

Conventional

T7300F

T7300D,F

Depends on model (some specific models have fewer).
All subbases are down selectable and can be configured to
control fewer stages than the maximum allowed.

Without O/B terminals.
With O/B terminals.
e
Used with ML7984 Actuator and V5011 or V5013 Valve.
d

ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Home and Building Control Sales Office (check white pages of your phone directory).
2. Home and Building Control Customer Relations
Honeywell, 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386 (800) 328-5111
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Electrical Ratings:
24 Vac, 50/60 Hz.
20 to 30 Vac, 50/60 Hz.

Table 5. Temperature Offset.
Temperature Range

Batteries: No batteries required.
Auxiliary Heat and Emergency Heat Indication:
Thermostat display indicates when Auxiliary Heat or
Emergency Heat are activated.
Loss of Power: The thermostat maintains programmed times
and temperatures for the life of the product. The clock and
day information is retained for a minimum of two hours.
Light Emitting Diodes (LED):
Two user-defined LED (not available on Q7300H).
Two defined (CHECK and MAINTENANCE) LED on select
models.

18 AWG

20 AWG

22 AWG

50 to 90°F

-0.4°F

-0.7°F

-1.0°F

10 to 32°C

-0.3°C

-0.4°C

-0.6°C

Minimum Stage Operation Time:
Minimum On (Heat and Cool): factory setting 2 minutes;
option 0 minutes.
Minimum Off (Cool and Heat Pump): factory setting
4 minutes; option 0, 1, 3, 5 minutes.
Mounting Means:
T7200: Mounts on a wallplate.
T7300: Mounts on a Q7300 Subbase.
NOTE: Wallplate and subbase mount horizontally on a wall
or outlet box with two no. 6 x 32 screws (included).

System Current Draw: 6 VA maximum at 30 Vac, 50/60 Hz.

Temperature:
Ratings:
Operating Ambient: 40°F to 110°F (4°C to 43°C).
Shipping: -30°F to +150°F (-34°C to +65°C).
Display Accuracy: ±1°F (±0.5°C).

Accessories:
C7150B1004 Discharge Air Sensor: for checkout use only
(form 63-2072).
M7415 Damper Actuator (form 63-2100).
ML7984 Valve Actuator (form 95C-10753).
Q7760A Serial LonTalk® Adapter.
R8222 Switching Relay (form 60-2056).
T675A Temperature Control (form 60-2200).
T7022A1010 Remote Temperature Sensor (form 60-0247).
T7047C Remote Temperature Sensor (form 62-3050).
T7047G Remote Temperature Sensor (form 62-3050).
T7147A Remote Temperature Sensor and Override Module
(form 62-3049).
W859F Packaged Economizer (form 63-2476).
W950A System Supervisor (form 60-2351).
W7459 Economizer Logic Module (form 63-2141).
W6210/W7210 Economizer (form 63-2528).
W6215/W7215 Economizer (form 63-2544).

Setpoint:
Range: 45°F to 95°F (7°C to 35°C).
Deadband: 2°F (1°C).
Default Settings: See Table 4.

Approvals:
European Community Mark (CE) Listed.
Q7300H only: LONMARK® Functional Profile No. 8060,
Thermostat Object (type 09).

Output Relay Current Draw: See Table 3.
Table 3. Maximum Amps at 30 Vac.
Relay

Running (A)

Inrush (A)

Fan

0.5

2.5

Heat (all stages)

1.5

3.5

Cool (all stages)

1.5

7.5

Auxiliary (Economizer)

1.5

3.5

Table 4. Default Setpoints.
Control

Occupied

MERCURY NOTICE

Unoccupied

Heating

70°F (21°C)

55°F (13°C)

Cooling

78°F (26°C)

90°F (32°C)

If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
control in the trash. Dispose of properly.

Remote Sensor Wiring Temperature Offset:
Temperature offset occurs with 500 ft (157m) to
1000 ft (305m) of 2-wire cable. See Table 5.

Contact your local waste management authority
for instructions regarding recycling and the proper
disposal of an old control. If you have questions,
call Honeywell Customer Response Center at
1-800-468-1502.

Humidity Ratings: 5% to 90% RH, noncondensing.
Clock Accuracy: ±1 minute per month.

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

6-3/4 (172)
1/16 (2)
3-1/4 (82)

1-3/8 (35)

1-7/8
(47)

4-1/8
(105)
4-3/4
(121)

Q7300A,C,D,G,L
6-11/16 (170)

1/16 (2)

3-3/16 (77)

1-3/8 (35)

1-7/8
(47)

4-1/8
(105)

Q7300H

1-11/16
(43)

7-5/16 (186)

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Continous
Unoccupied

7/8
(22)

Occupied
Temp

Unoccupied
Temp

Change
Time/Temp

4-5/8
(117)

5 (127)

Heat/Cool
Settings

System

Fan

1
M16292

T7200D,E; T7300D,E,F
1 T7200 WALLPLATE DOES NOT HAVE THE LED EXTENSION

Fig. 1. Dimensions of T7200, T7300 and Q7300 in in. (mm).

63-4355—4

9/16
(14)

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

INSTALLATION
When Installing this Product…
1.
2.
3.
4.

YES

Read these instructions carefully. Failure to follow
the instructions can damage the product or cause a
hazardous condition.
Check the ratings given in the instructions and on the
product to make sure the product is suitable for your
application.
Installer must be a trained, experienced service
technician.
After completing installation, use these instructions to
check out the product operation.

5 FEET
(1.5 METERS)

M4823A

Fig. 2. Typical location of thermostat
or remote-mounted sensor.

Location
Do not install the thermostat where it can be affected by:
— drafts, or dead spots behind doors and in corners.
— hot or cold air from ducts.
— radiant heat from sun or appliances.
— concealed pipes and chimneys.
— unheated (uncooled) areas such as an outside wall behind
the thermostat.

T7200 Wallplate or Q7300 Subbase without
Remote-Mounted Temperature Sensor

IMPORTANT
To avoid electrical interference, which can cause
erratic performances, keep wiring runs as short as
possible and do not run thermostat wires adjacent to
the line voltage electrical distribution systems. Use
shielded cable (Belden type 8762 or equivalent for
2-wire and Belden type 8772 or equivalent for
3-wire). The cable shield must be grounded only at
the controlled equipment case.

Install the thermostat about 5 ft (1.5m) above the floor in
an area with good air circulation at average temperature.
See Fig. 2.

SUBBASE
T

Q7300 Subbase with Remote-Mounted
Temperature Sensor(s)

T7047C
T

If only the remote-mounted temperature sensor(s) is used
to sense and control room temperature, then install the
thermostat in an area that is accessible for setting and
adjusting the temperature and settings.

M4839BB

If both the subbase and remote-mounted temperature
sensor(s) are used to sense and control room temperature,
then install the subbase about 5 ft above the floor in an area
with good air circulation.

Fig. 3. One T7047C Sensor providing temperature
sensing for T7300/Q7300 Thermostat/Subbase.

SUBBASE

Install the remote-mounted sensor(s) about 5 ft (1.5m) above
the floor in an area with good air circulation at average
temperature. See Fig. 2.

T7047G

If multiple remote sensors are required, they must be
arranged in a temperature averaging network consisting of
two, three, four, five or nine sensors. See Fig. 3 through 8.

NOTES:
— When sensor averaging, the T7147A can be substituted
for the T7047C. The T7147A includes OVERRIDE and
WARMER/COOLER keys.
— Up to four T7147As can be used in parallel to place the
thermostat in Temporary Occupied.

M4838

Fig. 4. Two T7047G Sensors providing temperature
averaging network for T7300/Q7300 Thermostat/Subbase.

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

SUBBASE

SUBBASE
T

T7047C

T7047C
T

T7047G

T7047C
T

T7047C

T7047C
T

M4839

T7047C

Fig. 5. Two T7047C Sensors and one T7047G Sensor
providing temperature averaging network for
T7300/Q7300 Thermostat/Subbase.

T7047C
T

SUBBASE
T

T7047C

M4842

Fig. 8. Nine T7047C Sensors providing temperature
averaging network for T7300/Q7300 Thermostat/Subbase.

T7047C

NOTE: With the thermostat configured for a temperature
averaging network (remote and internal sensing), the
internal sensor has 50% authority of the averaged
temperature.
T7047C

T7047C

Mounting Subbase/Wallplate

The subbase/wallplate mounts horizontally on the wall or
a 2 in. by 4 in. wiring box. Position the subbase/wallplate
horizontally on the wall or on a 2 in. by 4 in. wiring box.
1.

M4840

Fig. 6. Four T7047C Sensors providing temperature
averaging network for T7300/Q7300 Thermostat/Subbase.

NOTE: A level wallplate is only for appearance. The
thermostat functions properly when not level.
2.
3.

SUBBASE
T

T7047G

4.
T

T7047G

5.
6.
T

M4841

Fig. 7. Five T7047G Sensors providing temperature
averaging network for T7300/Q7300 Thermostat/Subbase.
63-4355—4

Position and level the subbase/wallplate.

Use a pencil to mark the mounting holes. See Fig. 9.
Remove the subbase/wallplate from the wall and drill
two 3/16 inch holes in the wall (if drywall) as marked.
For firmer material such as plaster or wood, drill two
7/32 inch holes. Gently tap anchors (provided) into the
drilled holes until flush with the wall.
Position the subbase/wallplate over the holes, pulling
wires through the wiring opening.
Loosely insert the mounting screws into the holes.
Tighten mounting screws.

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

WIRING SUBBASE/WALLPLATE
WALL

IMPORTANT
All wiring must comply with local electrical codes
and ordinances.

WIRES
THROUGH WALL

Follow equipment manufacturer wiring instructions when
available. Refer to the Wiring section for typical hookups.
A letter code is located near each terminal for identification.
Refer to Table 6 for terminal designations.

WALL
ANCHORS
(2)

CAUTION
Electrical Shock Hazard.
Power supply can cause electrical shock.
Disconnect power before beginning installation.
1.

MOUNTING
HOLES

Loosen the terminal screws on the subbase/wallplate
and connect the system wires. See Fig. 10.

IMPORTANT
Use 18-gauge, solid-conductor color-coded
thermostat cable for proper wiring. If using 18- gauge
stranded wire, no more than ten wires can be used.
Do not use larger than 18-gauge wire.

MOUNTING
SCREWS
M10237

LEDS

Fig. 9. Mounting subbase or wallplate.

2.
3.
4.

Securely tighten each terminal screw.
Push excess wire back into the hole.
Plug the hole with nonflammable insulation to prevent
drafts from affecting the thermostat.
FOR WRAPAROUND
INSERTION STRIP
7/16 IN. (11 MM).

FOR STRAIGHT INSERTION
STRIP 5/16 IN. (8 MM).

M4826

Fig. 10. Proper wiring technique.
Table 6. Terminal Designations and Descriptions.
Terminal Designations
Standard

Alternate

Typical Connection

Function

Terminal
Type

A2a

Dry auxiliary contacts for economizer control; A1 is normally open
during Unoccupied periods and closed during Occupied periods.

Output

A1, A2

—

Damper control relay (Q7300L only).

Input, Output 24V powered
contact

A1a

Dry auxiliary contacts for economizer control (A2 is common).

Input

Dry contact

—

Dry auxiliary contacts for economizer control; A3 is normally open
during Occupied periods and closed during Unoccupied periods.

Output

Dry contact

AS, AS

—

C7150B Discharge Air Sensor connection.

Input

—

Heating changeover valve.

Output

24V powered
contact

C1, C2, C3,
C4, C5

—

Communication input for T7147.

Input

Low power

Emergency heat relay.

Output

24V powered
contact

Dry contact

Some OEM models reverse the economizer terminal designations A1 and A2.
Some OEM models label the terminal for transformer common B.
c
Applies only to Q7300H2037.
b

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Table 6. Terminal Designations and Descriptions. (Continued)
Terminal Designations
Standard

Alternate

Typical Connection

Function

Terminal
Type

EB, EB

—

Q7300H LONWORKS® bus connection to LONWORKS® network.

Input, Output Communications

Fan relay.

Output

24V powered
contact

Cooling changeover valve.

Output

24V powered
contact

24V system transformer.

Input

—

24V cooling transformer.

Input

—

24V heating transformer.

Input

—

T, T

—

Remote sensor input for T7047 or T7147.

Input

—

H1, R3

Stage 1 heating relay (Q7300A,G,H) or auxiliary heat relay
(Q7300C,D,H).

Output

24V powered
contact

H2, R4, W3, Y Stage 2 heating relay.

Output

24V powered
contact

—

Output

24V powered
contact

Bb, C, X1, X2 Common.

Input

X1, X3

A, A1, A2, C,
L, X, Z

User defined Light Emitting Diodes (LED).

Annunciation —

—

LED common.

Annunciation —

C1, M, Y

Stage 1 compressor contactor (Q7300C,D,H).

Output

24V powered
contact

Y1, Y

RS, M

Stage 1 cooling compressor (Q7300A,G,Hc,L).

Output

24V powered
contact

Stage 2 cooling compressor (conventional).
Stage 2 compressor contactor (heat pump).

Output

24V powered
contact

—

Stage 3 cooling compressor.

Output

24V powered
contact

—

ML7984 Actuator connection (Q7300Hc, L only); no call for heat,
valve closed; call for stage 1 heat, valve approximately one-half
open; call for stage 2 heat, valve fully open.

Output

—

Fan control transformer (Q7300Hc, L only).

Input

—

Stage 3 heating relay.

—

High-speed fan output (Q7300H , L only); activate during calls for
cooling.

Output

24V powered
contact

—

Low-speed fan output (Q7300Hc, L only); activated on calls for heat Output
and fan On selection.

24V powered
contact

P1, P2

—

Pump interlock relay (Q7300Hc, L only); operates circulator pump in Input, Output 24V powered
contact
hydronic heat or energizes conventional heat system.

—

ML7984A Actuator connection (Q7300Hc, L only); no call for heat,
valve closed; call for stage 1 heat, valve approximately one-half
open; call for stage 2 heat, valve fully open.

Output

—

C, H, L

HSII Control Panel.

—

Momentary circuit changeover.

—

Defrost.

—

R1, R2

Low- and high-speed fan relays.

—

External temperature readout, T-relay; outdoor thermistor.

—

Some OEM models reverse the economizer terminal designations A1 and A2.
Some OEM models label the terminal for transformer common B.
c
Applies only to Q7300H2037.
b

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Mounting Thermostat on Subbase/Wallplate

SETTINGS

The thermostat mounts on the subbase/wallplate after it is
installed:
1. Engage the tabs at the top of the thermostat and
subbase/wallplate. See Fig. 11.
2. Press the lower edge of the case to latch.

Using Thermostat Keys

NOTE: To remove the thermostat from the wall, first pull out
at the bottom of the thermostat; then remove the top.

A. ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE OR WALLPLATE.

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. 12 for key information.

Setting System and Fan (select models)
The system default setting is Heat. The fan default is set
so the fan operates continuously in Occupied periods,
Unoccupied period recovery times and with the heating and
cooling equipment in Unoccupied periods. Use the System
and Fan keys to change the settings. Fan and system
operation are configured in the Installer Setup options.
The system settings are:
— Em Heat (T7200E, T7300/Q7300C,D,H): Emergency heat
relay is on continuously. Thermostat cycles highest stage
of heat. Cooling system is off. Compressor is de-energized.
— 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 depending on the indoor temperature.

B. PRESS LOWER EDGE OF CASE TO LATCH.

The fan settings are:
— On: Fan operates continuously in occupied period.
— Auto: Equipment controls the fan in the Unoccupied
periods. The Intelligent Fan™ operation (Installer Setup
number 17) offers three choices for the fan operation in
Occupied periods:
— fan turns on only when there is a call for heat or cool.
— fan operates continuously in Occupied periods.
— fan is on continuously in Occupied periods and
Unoccupied period recovery times.

M4824A

Fig. 11. Mounting thermostat on subbase/wallplate.

Setting Temperature
Refer to Table 4 for the default temperature setpoints. See
Programming section for complete instructions on changing
the setpoints.

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

ENTER UNOCCUPIED
PROGRAM MODE
ENTER OCCUPIED
PROGRAM MODE

SET CURRENT DAY OR
PROGRAM DAY

AM
Mon
Occupied
System
Heat

RETURNS TO
NORMAL
OPERATIONS

Auto

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Continuous
Unoccupied

ENTER HOLD MODE

Room

Fan

Set Program

SET OVERRIDE
TEMPERATURE
OFFSET AND
ACTIVATE
TEMPORARY
OVERRIDE

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

SET OCCUPIED
TEMPERATURE
SETPOINTS

Occupied
Temp

Unoccupied
Temp

Fan

SELECT
SYSTEM
OPERATION

DECREASE
TEMPERATURE
OR TIME SETTING

SELECT FAN
OPERATION

COPY ONE
PROGRAMMED DAY
TO ANOTHER DAY

CLEAR PROGRAM PERIOD

INCREASE
TEMPERATURE
OR TIME SETTING

Heat/Cool
Settings

System

SET CURRENT
DAY AND TIME

Change
Time/Temp

CHANGE BETWEEN HEATING
AND COOLING SETPOINTS
AND SCROLLS BACKWARDS
THROUGH INSTALLER SETUP
NUMBERS AND SYSTEM TEST
M10233A

Fig. 12. Thermostat key locations and descriptions.

INSTALLER SETUP
NOTE: For most applications, the thermostat factory settings
do not need to be changed. Review the factory
settings in Table 7 and if no changes are necessary,
go to the Installer System Test section.
The installer uses the Installer Setup to customize the
thermostat to specific systems. (See Table 7.) The table
includes all the configuration options available.

M4916

A combination of key presses are required to use the Installer
Setup feature:
— To enter the Installer Setup, press and hold Heat/Cool
Settings and 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. 13 and 14.
— To advance to the next Installer Setup number, press
Unoccupied Temp.
— To return to an Installer Setup number, press Heat/Cool
Settings.
— To change a setting, use the increase ▲ or decrease ▼ key.
— To exit the Installer Setup, press Run Program.
NOTES:
—
—
—

63-4355—4

Set Program Start Time Set Day/Time Temporary Setting Enrg
Sav
Em Ht
AM
Aux Ht
Room
PM
Comm
%Humid
Remote
Heat Cool
MonTueWedThuFriSatSun
UnOccupied 12 Override
In Recovery Auto Only Duct
System
Fan
LoMedHi
On Auto
Em Heat OffCool Auto Wait

Installer Setup is automatically exited after four
minutes with no key pressed.
Be sure to set thermostat time after exiting
Installer Setup.
Installer Setup numbers are listed in Table 7.

Fig. 13. LED display of all segments.

MODE NUMBER
DISPLAY
(COLUMN 2
OF TABLE 8)

M10227

FACTORY SETTING
OR OTHER CHOICE
DISPLAY (COLUMN 3
OR 5 OF TABLE 8)

Fig. 14. Installer Setup number and setting display.

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

IMPORTANT
Only configurable numbers are shown on the device.
Example: If the thermostat does not have a system
key, Installer Setup number 12 will not be displayed.
Review Table 7 factory settings and mark any
desired changes in the Actual Setting column. When
the Installer Setup is complete, review the settings to
confirm that they match the system.

CAUTION
Possible Equipment Damage.
Fan must be running when system is operating.
Heat pump and electric heat systems must be
configured correctly in Installer Setup 2 to prevent
equipment damage caused by the system running
without the fan.

Table 7. Thermostat Installer Setup Options.

Select

Installer Setup
Number
(Press Unoccupied
Temp to change)

Other Choices
(Press ▲ or ▼ to change)

Factory Setting
Display

Description

Display

Actual
Setting

Description

Not used

—

Fan operationa

Conventional applications where
equipment controls fan operation
in heat mode.

Electric heat applications where thermostat
controls fan operation in heat mode.

Output stages of
heating

Subbase Stages of heat.
dependant

0, 1, 2,
or 3

0:
1:
2:
3:

Heating cycle rate 4

Stage 1: 4 cph.

Stage 2: 4 cph.

Stage 3: 4 cph.

Emergency heat relay is on
continuously. Highest stage of
heat cycles at 4 cph (Q7300C or D
only).

3, 6, 8 or 3: 3 cph (hot water systems or high
9
efficiency furnaces).
6: 6 cph (conventional systems).
8: 8 cph (conventional systems).
9: 9 cph (electric heat systems).

Subbase Stages of cooling.
dependant

0, 1, 2 or 0: No cooling.
3
1: One cooling stage.
2: Two cooling stages.
3: Three cooling stages.
3

Cooling output
stages

Cooling cycle rate 9

Stage 1: 4 cph.

Stage 2: 4 cph.
Stage 3: 4 cph.

—

No heating.
One stage of heat.
Two stages of heat.
Three stages of heat.

3: 3 cph.

System setting
adjustment
(models with
System key)

Model
System selection.
dependant

0, 1 or 2 0: System setting key is operational.
1: Auto setting disabled.
2: Auto only setting.

Not used

—

Degree
temperature
display

Temperature displayed in °F.

Temperature displayed in °C.

Displaying
temperature
(T7300F only).

Temperature displayed.

Temperature not displayed.

Clock format.

12-hour clock format.

24-hour clock format.

Intelligent Fan™
operation.

Fan operates continuously in
Occupied and recovery modes.
Fan operates with call for heat or
cool in Unoccupied mode.

0 or 1

0: Fan operates only with call for heat or
cool (Occupied and Unoccupied modes).
1: Fan operates continuously in Occupied
mode. Fan operates with call for heat or
cool in Unoccupied mode.

Auxiliary contact
operation.

0: Time of day contact.

1: Economizer contacts.

a
b

—

Number 2 must be set to 1 to extend fan operation.
Number 22 must be set to 1 and remote sensor(s) must be installed.
11

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Table 7. Thermostat Installer Setup Options. (Continued)

Select

Installer Setup
Number
(Press Unoccupied
Temp to change)

Other Choices
(Press ▲ or ▼ to change)

Factory Setting
Display

Description

Display

Description

Extended fan
operation in heata
(T7300F only).

No extended fan operation after
call for heat ends.

Fan operation extended 90 sec after call for
heat ends.

Extended fan
operation in
cooling
(T7300F only).

No extended fan operation after
the call for cooling ends.

Fan operation is extended 90 seconds after
the call for cooling ends.

Fan key
adjustment
(models with Fan
key).

Fan setting key operational.

Fan setting key is Auto only.

Remote sensing.

Remote sensing not activated.

Remote sensing activated.

23
Temperature
b
averaging network
(T7300F only).

Temperature averaging disabled.

Temperature averaging between local
sensor and remote sensor(s) activated.

Not used.

—

Keypad lockout
level (keypad
lockout enabled/
disabled by DIP
switch 1 on
thermostat back).
(T7300F only)

No lockout.

1, 2 or 3 1: Lockout all thermostat keys except
system and fan settings, temporary
setpoint, clock and day adjustments,
increase ▲ and decrease ▼.
2: Lockout all keys except Set Current Day/
Time, increase ▲ and decrease ▼.
3: Lockout all keys except Temporary
Occupied and Set Current Day/Time (for
clock, day adjustment).

Duration of
temporary
override.

3: Three hour override.

1, 8 or
12

1: One hour override.
8: Eight hour override.
12: Twelve hour override.

Not used.

27 through 29

—

Deadband
(T7300F only).

Heating and cooling setpoints can 3 - 10
be set no closer than 2°F (1.1°C).

Heating and cooling setpoints can be set no
closer than the chosen value.

Interstage control
point (T7300F,
Q7300C,D only).

Disabled.

1 - 12

Temperature must change more than
chosen value before system calls for next
stage. (Example: heat setpoint: 68°F (20°C),
interstage setting: 2°F (1.1°C), temperature
is 65.5°F (18.5°C). Second stage turns on,
brings temperature to 66°F (19°C) and turns
off. Heat pump continues to run until setpoint
is reached.

Minimum on- time 32
(T7300F).

2-minute minimum on- time for
heating and cooling.

0 or 1

No minimum on-time or 1-minute minimum
on-time for heating and cooling.

Minimum
compressor offtime.

4-minute minimum compressor
off-time.

0, 1, 2, 3 Minimum number of minutes (0 through 5)
or 5
compressor is off between compressor calls.

Temperature heat
range stops
(T7300F).

Highest heat setpoint.

40 to 89 Heat setpoint temperature range (1°F
increments).

Temperature
cooling range
stops (T7300F).

Lowest cooling setpoint.

46 to 99 Temperature range (1°F increments) for
cooling setpoint.

Not used.

—

a
b

Number 2 must be set to 1 to extend fan operation.
Number 22 must be set to 1 and remote sensor(s) must be installed.

63-4355—4

—

Actual
Setting

—

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Table 7. Thermostat Installer Setup Options. (Continued)
Installer Setup
Number
(Press Unoccupied
Temp to change)

Select

Other Choices
(Press ▲ or ▼ to change)

Factory Setting
Display

Description

Display

Actual
Setting

Description

37
Temperature
display adjustment.

No difference in displayed
temperature and actual room
temperature.

1-6

1: Display adjusts to 1°F (0.6°C) higher
than actual room temperature.
2: Display adjusts to 2°F (1.1°C) higher
than actual room temperature.
3: Display adjusts to 3°F (1.7°C) higher
than actual room temperature.
4: Display adjusts to 1°F (0.6°C) lower than
actual room temperature.
5: Display adjusts to 2°F (1.1°C) lower than
actual room temperature.
6: Display adjusts to 3°F (1.7°C) lower than
actual room temperature.

Minimum off-time
in heating.

4: 4-minute minimum off-time

0, 1, 2,
3, or 5

Minimum number of minutes (0 through 5)
the heating equipment is off between calls
for heat.

Not used.

—

Installer Setup
lockout (enable/
disable keypad
lockout using DIP
switch 1 on
thermostat back).

0: No Installer Setup lockout.

1: Installer Setup lockout activated.

a
b

—

Number 2 must be set to 1 to extend fan operation.
Number 22 must be set to 1 and remote sensor(s) must be installed.

IMPORTANT
Review the settings to confirm that they match the
system. Press Run Program to exit the Installer
Setup. The thermostat has saved the Installer Setup
changes and initiated reset in order to operate with
these new settings. Be sure to set the current day
and time immediately.

NOTE: On initial power up or after an extended power
loss, 1:00 pm flashes on the display until a key
is pressed.

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Unoccupied
Temp

System

Set Day/Time

Day
Set Temperature

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Continous
Unoccupied

Occupied
Temp

Unoccupied
Temp

Change
Time/Temp

Tue

Heat/Cool
Settings

System

Fan

M4952B

Set Current
Day/Time

Clear
Start Time

Copy

Tue

Heat/Cool
Settings

System

Change
Time/Temp

Unoccupied
Temp

Fan

M4953B

Press Run Program.
AM
Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Continous
Unoccupied

Occupied
Temp

Unoccupied
Temp

Heat/Cool
Settings

System

Fan

Room

Change
Time/Temp

Mon
Occupied 1
System
Heat

Fan
Auto

M4954A

Use the Installer System Test to check the thermostat
configurations and operation. Refer to Table 8 for a list of
available system tests. To start the system test:

Fan

NOTE: Sun = Sunday, Mon = Monday, Tue = Tuesday,
Wed = Wednesday, Thu = Thursday,
Fri = Friday, Sat = Saturday.

Set Program

Temporary
Occupied

Occupied
Temp

Mon

Press Day until the current day is displayed.

Occupied
Start Time

Day

Change
Time/Temp

M4951B

Run
Program

Unoccupied
Start Time

Heat/Cool
Settings

Continous
Unoccupied

Occupied
Start Time

INSTALLER SYSTEM TEST

Set Day/Time

Set Program

Set Temperature

Run
Program

Continous
Unoccupied

Run
Program

Press Set Current Day/Time.

Set Current
Day/Time

Set Day/Time
Set Program

Setting Current Time/Day
1.

NOTE: Tapping Set Current Day/Time changes the
time in one hour increments.

CAUTION
Possible Equipment Damage.
Equipment damage can result if compressor is
cycled too quickly.
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 both the increase ▲ and decrease ▼ keys
until 10 appears. All segments of the LCD display for three
seconds before 10 appears. See Fig. 15 and 16.

Press increase ▲ or decrease ▼ key until the current
time is displayed.
13

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Thermostat Information
1.

Set Program Start Time Set Day/Time Temporary Setting Enrg
Sav
Em Ht
AM
Aux Ht
Room
PM
Comm
%Humid
Remote
MonTueWedThuFriSatSun
Heat Cool
UnOccupied 12 Override
In Recovery Auto Only Duct
System
Fan
LoMedHi
On Auto
Em Heat OffCool Auto Wait

Press Heat/Cool Settings to access thermostat
information.

M4934
M4916

Fig. 15. LCD display of all segments.

Press increase ▲ 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.
TEST NUMBER

M10257A

Press increase ▲ again to display the software
identification code. (Example: 02 = software ID code 2).

Fig. 16. Test number display.
Table 8. Tests Available in Installer System Test.
Test
Number

M4932A

System Test Description

10 to 19 Heating equipment can be turned on and off.

20 to 29 Emergency heat equipment can be turned on and
off (Q7300C,D,H only).

Press increase ▲ again to display the software revision
number. (Example: 001 = revision number 1).

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 Keyboard keys test.
60 19

M10229

70 to 79 Thermostat information including date code and
software versions are displayed.

Press increase ▲ again to display the EEPROM
identification code. (Example: 314 = EEPROM ID 313).

NOTE: If a duct temperature sensor is installed
(T7300F only), duct temperature is also displayed.
Refer to Table 9 and Thermostat Information section for
directions and results of the specific system tests.

M4933A

NOTE: Press Run Program to exit the system test. The
system test times out after four minutes without any
key presses.

Press increase ▲ again to display the subbase
identification code.
(Example: HP = heat pump subbases).

M10290

63-4355—4

Press Run Program to exit the self-test. The self-test
times out after four minutes without any key presses.

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Table 9. Installer System Test Options.
Key to Press

Test
Number

Description

Heating Equipment System Test
Heat/Cool Settings

Enter heating equipment system test.

▲

Stage-one heat turns on. The system fan is also energized.

▲

Stage-two heat turns on. Stage-one heat and system fan remain on.

▲

Stage-three heat turns on. Stage-one and stage-two heat with the system fan are on.

▼

Stage-three heat turns off.

▼

Stage-two heat turns off.

▼

Stage-one heat and system fan turn off.

Emergency Heating Equipment System Test (T7300E,F with Q7300C,D)
Heat/Cool Settings

Change from heating to emergency heating equipment system test (Em Heat on).

▲

Fan turns on.

▼

Fan and highest stage heat turns off.

Cooling Equipment System Test
Heat/Cool Settings

Change from heating or emergency heating to cooling equipment system test.

▲

Stage-one cooling and system fan turn on.

▲

Stage-two cool turn on. Stage-one cool and system fan remain on.

▲

Stage-three cool turns on (Q7300G,H only). Stage-one and stage-two cool with system
fan remain on.

▼

Stage-three cool turns off.

▼

Stage-two cool turns off.

▼

Stage-one cool and system fan turn off.

Fan Equipment System Test
Heat/Cool Settings

Change from cooling to fan equipment system test.

▲

Fan turns on.

▲

High speed fan turns on (Q7300Ha, L only).

▼

High speed fan turns off.

▼

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 (select models)

60 11

System test number is displayed.

Fan (select models)

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.

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Setting Keypad Lockout Switch (T7300 only)
The DIP switch 1, on the thermostat back, activates the
lockout features. The switch must be set ON (up) to activate
the lockout feature (see Fig. 17).

NOTE: Before starting the program procedure, use Table 11
to organize the program schedule.
Table 11. Occupied and Unoccupied Periods Start Times.
Day

NOTE: The factory setting is off (down).
If keypad lockout is desired:
1. Remove the thermostat from the subbase.
2. Set the switch to ON.
3. Enter the Installer Setup.
4. Select option 25 to choose the level of keypad lockout
(see Table 7).
5. Activate the lockout by setting option 40 to 1.

Occupied
Period 1

Unoccupied
Period 1

Occupied
Period 2

Unoccupied
Period 2

Monday
Tuesday
Wednesday
Thursday
Friday

Saturday

1
2

1 DIP 1 IS ON

Sunday

2 DIP 2 IS NOT USED.

BACK OF THERMOSTAT

M10235

Setting Current Day/Time
1.

Press Set Current Day/Time.

Fig. 17. Set keypad lockout DIP switch 1.
NOTE: On initial power up or after an extended power
loss, the display flashes 1:00 pm until a key
is pressed.

PROGRAMMING

Set Day/Time

The thermostat operates at the Unoccupied temperature
setting unless the thermostat is programmed. Table 10 shows
the default temperature settings. (The program has four):
— Occupied heat.
— Occupied cool.
— Unoccupied heat.
— Unoccupied cool.

Set Current
Day/Time

Heating

Occupied
70°F (21°C)

Set Temperature

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

78°F (26°C)

Change
Time/Temp

Mon

Heat/Cool
Settings

Fan

M4951B

Press Day until the current day is displayed.
NOTE: Sun = Sunday, Mon = Monday, Tue = Tuesday,
Wed = Wednesday, Thu = Thursday,
Fri = Friday, Sat = Saturday.

Unoccupied

Set Day/Time

Day
Set Program

55°F (13°C)

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Change
Time/Temp

Unoccupied
Temp

Tue

Heat/Cool
Settings

System

Fan

90°F (32°C)

M4952B

The keyboard is located behind the thermostat cover. Up to
sixteen keys are used to set, review and modify programmed
times and temperature settings. The thermostat display shows
day, time, program period and temperature.

Press increase ▲ or decrease ▼ until the current time
is displayed.
NOTE: Tapping Set Current Day/Time changes the
time in one hour increments.

The thermostat can be set for two Occupied and two
Unoccupied times for each day of the week (28 independent
time settings). Temporary Occupied key provides quick
temporary temperature changes for increased occupant
comfort. The Continuous Unoccupied key provides energy
efficient operation for extended periods of time.

Set Day/Time
Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

System

Change
Time/Temp

Unoccupied
Temp

Tue

Heat/Cool
Settings

Continous
Unoccupied

Fan

M4953B

4.
IMPORTANT
To program the thermostat, 24 Vac is required (turn
on system power). The keyboard lockout feature
must be disabled by setting the DIP switch 1 on the
back of the thermostat to the Off position.

63-4355—4

Unoccupied
Temp

System

Continous
Unoccupied

Cooling

Occupied
Temp

Continous
Unoccupied

Table 10. Occupied and Unoccupied
Default Temperature Settings.
Control

Set Program
Run
Program

Press Run Program.
Run
Program

AM
Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Continous
Unoccupied

Occupied
Temp

Unoccupied
Temp

Heat/Cool
Settings

System

Fan

Room

Change
Time/Temp

Mon
Occupied 1
System
Heat

Fan
Auto

M4954A

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Setting Program Times
1.

Press Occupied Start Time.

Press increase ▲ or decrease ▼ until the desired start
time is displayed.
Set ProgramStart Time

NOTE: Anytime a start time is not required, press
Clear Start Time.

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Unoccupied
Temp

Occupied
Temp

Change
Time/Temp

Wed
UnOccupied 2

Heat/Cool
Settings

Continous
Unoccupied

System

Fan

M4963A
Set Program Start Time

Occupied
Start Time

AM
Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Unoccupied
Temp

Change
Time/Temp

System

Copying a Day

Mon
Occupied 1

Heat/Cool
Settings

Continous
Unoccupied

Fan

M4955A

NOTE: The thermostat must be in program mode to use
the copy feature. If the thermostat is already in the
program mode, go to step 2.

Press Day until the desired day is displayed.
Set Day/Time

Day
Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Unoccupied
Temp

Change
Time/Temp

Tue

Press Occupied Start Time.

Heat/Cool
Settings

Continous
Unoccupied

System

Fan

Set Program Start Time

Occupied
Start Time

M4952B

AM
Set Program

Press increase ▲ or decrease ▼ until the desired start
time is displayed.

Occupied
Start Time

Unoccupied
Start Time

Day

Occupied
Temp

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Change
Time/Temp

Unoccupied
Temp

Mon
Occupied 1

Heat/Cool
Settings

Continous
Unoccupied

System

Fan

M4955A

NOTE: The program times are in fifteen minute
intervals. (Example: 8:00, 8:15, 8:30).

Set Temperature

Run
Program

Press Day to select the day to be copied if different from
the day displayed.

Set ProgramStart Time
Set Program Start Time

AM
Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Change
Time/Temp

Unoccupied
Temp

Continous
Unoccupied

System

Day

Wed
Occupied 1

Heat/Cool
Settings

Fan

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Change
Time/Temp

Unoccupied
Temp

Wed
Occupied 1

Heat/Cool
Settings

Continous
Unoccupied

System

Fan

M4957A
M4966A

Press Occupied Start Time a second time to set a
second Occupied Start Time.

Set ProgramStart Time

Occupied
Start Time

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Unoccupied
Temp

System

Copy

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Change
Time/Temp

Unoccupied
Temp

Wed

Change
Time/Temp

Wed
Occupied 2

Heat/Cool
Settings

Continous
Unoccupied

Press Copy.

Continous
Unoccupied

Heat/Cool
Settings

System

Fan

M4967A
M4958B

Press increase ▲ or decrease ▼ until the desired start
time is displayed.

Day

Set ProgramStart Time

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Day

Occupied
Temp

Unoccupied
Temp

Change
Time/Temp

Copy

System

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Change
Time/Temp

Unoccupied
Temp

Wed Thu

Heat/Cool
Settings

Continous
Unoccupied

System

Fan

Wed
Occupied 2

Heat/Cool
Settings

Continous
Unoccupied

Press Day until the day to be copied to is displayed.

M4968A

Fan

M4959A

5.
6.

Press Copy.

Press Unoccupied Start Time.
NOTE: donE will be displayed for two seconds and
then the program display is shown.

Set Program Start Time

Unoccupied
Start Time

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Unoccupied
Temp

System

Change
Time/Temp

Wed
UnOccupied 1

Heat/Cool
Settings

Continous
Unoccupied

Fan

Copy
M4960A

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Press increase ▲ or decrease ▼ until the desired start
time is displayed.
Set ProgramStart Time
Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Unoccupied
Temp

System

Wed
UnOccupied 1

Fan

M4969A

6.
7.

Repeat steps 3 through 5 for all the days desired.
Press Run Program.
Run
Program

Fan

M4961A

AM
Set Program
Run
Program

Occupied
Start Time

Unoccupied
Start Time

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Continous
Unoccupied

System

Change
Time/Temp

Heat/Cool
Settings

Continous
Unoccupied

Change
Time/Temp

Unoccupied
Temp

Heat/Cool
Settings

Continous
Unoccupied

Press Unoccupied Start Time a second time to set a
second Unoccupied Start Time.

Set Temperature
Day

Occupied
Temp

Unoccupied
Temp

Heat/Cool
Settings

Copy

System

Fan

Room

Change
Time/Temp

Mon
Occupied 1
System
Heat

Fan
Auto

M4954A

Set Program Start Time

Unoccupied
Start Time

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Continous
Unoccupied

Occupied
Temp

Unoccupied
Temp

Heat/Cool
Settings

System

Change
Time/Temp

Wed
UnOccupied 2

Fan

M4962B

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Setting Program Temperature Setpoints

Press increase ▲ or decrease ▼ until the desired
temperature is displayed.

NOTE: The setpoint temperature range is 40°F to 90°F
(7°C to 31°C) for heating and 45°F to 99°F
(9°C to 37°C) for cooling.
1.

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Setting

Change
Time/Temp

Unoccupied
Temp

Cool
Heat/Cool
Settings

Continous
Unoccupied

System

UnOccupied

Fan

M4977B

Press Occupied Temp.
9.
Occupied
Temp

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Heat
Occupied

Heat/Cool
Settings

System

Run
Program

Change
Time/Temp

Unoccupied
Temp

Occupied
Temp

Continous
Unoccupied

Press Run Program.

Setting

Set Program

AM
Set Program
Run
Program

Occupied
Start Time

Unoccupied
Start Time

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Set Temperature
Occupied
Temp

Day

Unoccupied
Temp

Mon
Occupied 1
System
Heat

Heat/Cool
Settings

Copy

Continous
Unoccupied

System

Room

Change
Time/Temp

Fan

M4970B

Fan
Auto

M4954A

Press increase ▲ or decrease ▼ until the desired
temperature is displayed.
Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

System

Change
Time/Temp

Unoccupied
Temp

Heat

Heat/Cool
Settings

Continous
Unoccupied

Clearing Program Start Times

Setting

Set Program

Occupied

Fan

Set Program Start Time

M4971B

Occupied
Start Time

AM
Set Program

Press Heat/Cool Settings to change between heat and
cool settings.
Set Program

Heat/Cool
Settings

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

System

Setting

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Set Current
Day/Time

Clear
Start Time

Copy

Change
Time/Temp

Unoccupied
Temp

Mon
Occupied 1

Heat/Cool
Settings

System

Fan

Press Day until the desired day is displayed.

Cool
Occupied
Set Program Start Time

Set Program

Unoccupied
Start Time

Day

Temporary
Occupied

Occupied
Temp

Fan

Set Temperature

Occupied
Start Time

Unoccupied
Start Time

M4955A

Day

AM
Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Unoccupied
Temp

Change
Time/Temp

Mon
Occupied 1

Heat/Cool
Settings

Continous
Unoccupied

Press increase ▲ or decrease ▼ until the desired
temperature is displayed.

Run
Program

Occupied
Start Time

Continous
Unoccupied

M4972A

Set Program

Set Temperature

Run
Program

Change
Time/Temp

Unoccupied
Temp

Heat/Cool
Settings

Continous
Unoccupied

Press Occupied Start Time or Unoccupied Start Time
until the start time to be cleared is displayed.

System

Fan

M4978A

Setting

Press Clear Start Time.

Change
Time/Temp

Unoccupied
Temp

Cool
Heat/Cool
Settings

Continous
Unoccupied

System

Occupied

Clear
Start Time

Fan

M4973B

Set Program Start Time

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Continous
Unoccupied

Unoccupied
Temp

Change
Time/Temp

Mon
Occupied 1

Heat/Cool
Settings

System

Fan

Press Unoccupied Temp.

M4979B

Set Program

Unoccupied
Temp

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Unoccupied
Temp

System

Setting

Change
Time/Temp

Heat/Cool
Settings

Continous
Unoccupied

Heat

UnOccupied

Fan

M4974B

Occupied
Temp

Repeat steps 1 through 3 for all the start times to
be cleared.
Press Run Program.
Run
Program

Press increase ▲ or decrease ▼ until the desired
temperature is displayed.

AM
Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Continous
Unoccupied

Occupied
Temp

Unoccupied
Temp

System

Room

Change
Time/Temp

Mon
Occupied 1
System
Heat

Heat/Cool
Settings

Fan

Fan
Auto

M4954A
Setting

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Change
Time/Temp

Unoccupied
Temp

System

Temporary Occupied Override

Heat

Heat/Cool
Settings

Continous
Unoccupied

UnOccupied

Fan

M4975B

Press Heat/Cool Settings to change between heat and
cool settings.

Setting Temperature Offset for Temporary Override
1.

Press Occupied Temp.
Setting

Set Program

Heat/Cool
Settings

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Continous
Unoccupied

Occupied
Temp

Unoccupied
Temp

Heat/Cool
Settings

System

Occupied
Temp

Setting

Change
Time/Temp

Cool
UnOccupied

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Continous
Unoccupied

Occupied
Temp

Unoccupied
Temp

Change
Time/Temp

Wed
Occupied

Heat/Cool
Settings

System

Heat

Fan

M10231
M4976B

Press Temporary Occupied.
Temporary
Occupied

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Continous
Unoccupied

Occupied
Temp

Unoccupied
Temp

Change
Time/Temp

Heat/Cool
Settings

System

Fan

M4980A

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Press increase ▲ or decrease ▼ until the desired
temperature offset is displayed (range is 0°F to 5°F).

Press increase ▲ or decrease ▼ to change the default
setting, if desired.
Setting

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Set Program

Change
Time/Temp

Unoccupied
Temp

System

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Change
Time/Temp

Unoccupied
Temp

Heat

Heat/Cool
Settings

Continous
Unoccupied

Set Temperature

Heat/Cool
Settings

Continous
Unoccupied

Fan

System

Fan

M4981A

M10232A

Press Run Program.
Run
Program

3.
AM

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Occupied
Temp

Day

Continous
Unoccupied

System

Mon
Occupied 1
System
Heat

Heat/Cool
Settings

Copy

Room

Change
Time/Temp

Unoccupied
Temp

Fan

Fan
Auto

Press Heat/Cool Settings to change between heat and
cool settings. Press increase ▲ or decrease ▼ to adjust
the temperature settings.
Press Run Program to cancel the Hold and return to the
program.

M4954A

Run
Program

Using Temporary Override

AM
Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Day

Occupied
Temp

Copy

Set Temperature

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Change
Time/Temp

Unoccupied
Temp

System

Heat

Override

Heat/Cool
Settings

Continous
Unoccupied

Fan
Auto

Press increase ▲ or decrease ▼ until the desired
temperature is displayed.
NOTE: If ▲ or ▼ appear under the temperature
display, it means that both the heat and cooling
setpoints are being adjusted. Tapping the key
changes both setpoints by one degree. Press
Heat/Cool Settings after the desired setpoint is
reached to review the settings.

Setting

Set Program
Run
Program

Fan

Changing Temperature Setpoint Until Next
Program Period

NOTE: The default temperature setting is the
Occupied setpoint.
Temporary
Occupied

Mon
Occupied 1
System
Heat

M4954A

Press Temporary Occupied.

System

Room

Change
Time/Temp

Heat/Cool
Settings

Continous
Unoccupied

NOTE: The temporary override temperature is held for one,
three, eight or twelve hours (depending on installer
setup number 26) and then the thermostat returns to
the program.

Unoccupied
Temp

Fan

M4982B

Temporary Setting

Press increase ▲ or decrease ▼ to change the default
setting by the offset (range is 0°F to 5°F), if desired.
NOTE: With zero offset, the default setting changes in
one degree increments. If the offset is 1 - 5, the
default setting changes by ± the offset.

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Change
Time/Temp

Unoccupied
Temp

System

Heat

Occupied

Heat/Cool
Settings

Continous
Unoccupied

Fan

M4987B

Press Run Program to cancel the Hold and return to
the program.

Temporary
AM
Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

System

Run
Program

Wed
Override

Heat/Cool
Settings

Continous
Unoccupied

Room

Change
Time/Temp

Unoccupied
Temp

System

Fan

AM
Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Unoccupied
Temp

Fan
Auto

Auto

Continous
Unoccupied

M4983B

Heat/Cool
Settings

System

Fan

Room

Change
Time/Temp

Mon
Occupied 1
System
Heat

Fan
Auto

M4954A

Press Run Program to cancel the override.
Run
Program

AM
Set Program
Run
Program

Occupied
Start Time

Unoccupied
Start Time

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Set Temperature
Occupied
Temp

Day

Mon
Occupied 1
System
Heat

Heat/Cool
Settings

Copy

Continous
Unoccupied

System

OPERATION

Room

Change
Time/Temp

Unoccupied
Temp

Fan

Fan
Auto

T7200/T7300 Relay Logic

M4954A

Using Continuous Unoccupied
1.

Press Continuous Unoccupied.
NOTE: The default temperature setting is the
Unoccupied setpoint. The default appears for
approximately five seconds and then the room
temperature is displayed.
Setting

Continuous
Unoccupied

Set Program

Set Temperature

Run
Program

Occupied
Start Time

Unoccupied
Start Time

Day

Temporary
Occupied

Set Current
Day/Time

Clear
Start Time

Copy

Occupied
Temp

Unoccupied
Temp

The T7200D Relay Logic is for conventional applications.
The T7200E Relay Logic is for heat pump applications.

Change
Time/Temp

Heat
Continous
Unoccupied

Heat/Cool
Settings

System

The T7200/T7300 contains three switching relays. In
conventional applications, the relays control first stage
cooling, first stage heating, and fan. In heat pump
applications, the relays control the heat pump compressor,
auxiliary heat, and the fan. Because of this change in
switching logic, it is important to use a Q7300C,D,
Q7300H2003, or Q7300H2011 Subbase when the T7300 is
set for heat pump applications and a Q7300A,G,
Q7300H2029 Subbase when the T7300 is set for
conventional applications.

Fan

M4984B

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

T7200/T7300 and Conventional Thermostats

T7200/T7300 Thermostat Operation

P+I Control

Startup

The T7200/T7300 microprocessor based control requires that
the user understands temperature control and thermostat
performance. A conventional electromechanical or electronic
thermostat does not control temperature precisely at setpoint.
Typically, there is an offset (droop) in the control point as the
system load changes. This is a phenomenon that most people
in the industry know and accept. Many factors contribute to
offset including switch differential, thermal lag, overshoot,
cycle rates and system load.

When power to the thermostat is turned on, a startup and
initialization program begins. The startup occurs only on initial
powerup. After total loss of power for an extended period, the
current time and day may need to be set, but the user
program is held. The initial default values are heating 68°F
(20°C) and cooling 78°F (26°C) for the Occupied periods.
Unoccupied default values are heating 55°F (13°C) and
cooling 90°F (32°C).

The thermostat microprocessor simultaneously gathers,
compares and computes data. Using this data, it controls a
wide variety of functions. The special proprietary algorithm
(program) in the thermostat eliminates the factors causing
offset. This makes temperature control more accurate than
the conventional electromechanical or electronic thermostats.
The temperature control algorithm is called proportional plus
integral (P+I) control.
The thermostat sensor, located on the thermostat or remote,
senses the current space temperature. The proportional error
is calculated by comparing the sensed temperature to the
programmed setpoint. The deviation from the setpoint is the
proportional error.
The thermostat also determines integral error, which is a
deviation based on the length of error time. The sum of the
two errors is the (P+I) error. The cycle rate used to reach and
maintain the setpoint temperature is computed using the P+I.
The addition of the integral error is what differentiates the
thermostat from many other electronic and electromechanical
thermostats. See Fig. 18.

PROPORTIONAL COOL
CONTROL POINT
TEMPERATURE

P+I CONTROL
POINT

PROPORTIONAL HEAT
CONTROL POINT
THERMOSTAT
HEAT SETPOINT

COOLING

0
PERCENT LOAD

100
M4414

Fig. 18. Proportional temperature control
versus P+I temperature control.

Equipment Protection
As part of the operational sequence, the T7200/T7300
microprocessor also incorporates minimum on and off times
for all heating and cooling stages. Minimum on time is set in
the installer setup number 32. Using the minimum on and off
times assures that rapid cycling of equipment does not occur,
which extends equipment life. Minimum on and off times are
set in the Installer Setup.
63-4355—4

When the thermostat is operating in the Occupied period,
the temperature is controlled to the occupied heat or cool
setpoint. The normally open (A1) auxiliary relay contacts are
closed and the normally closed (A3) auxiliary relay contacts
are opened during the Occupied periods (if the subbase being
used has this option). The fan operates as follows: fan
selection can be set to On (always energized) or Auto (cycles
with Y1 or W1).

Unoccupied Operation
When the thermostat is operating in the Unoccupied period,
the temperature is controlled to the Unoccupied heat or cool
setpoint. The normally open (A1) relay contact is open and the
normally closed (A3) relay contact is closed. The fan operates
as follows: fan is always intermittent (cycles with Y1 or W1).

Intelligent Recovery® Feature

When Intelligent Recovery is used in heating, the control point
raises gradually, maximizing the use of the more economical
first stage heat to bring the sensed temperature to the desired
comfort setpoint. This minimizes using the typically more
expensive second-stage heat.

P+I CONTROL POINT

100

Occupied Operation

Intelligent Recovery is a Honeywell trademarked feature
for the way the thermostat controls heating and cooling
equipment during recovery from the Unoccupied to Occupied
setting. During recovery, the control point changes gradually
rather than shifting immediately from the energy saving
setting to the comfort setting.

THERMOSTAT
COOL SETPOINT

HEATING

NOTE: The thermostat controls to the Unoccupied default
setpoints of 55°F (13°C) for heat and 90°F (32°C) for
cool when no program is set.

Advantages of Intelligent Recovery are:
• Comfort setting is achieved at the programmed time and
maintained regardless of weather conditions; occupants
are comfortable.
• Drafts from low-temperature discharge air are minimized
during Occupied periods.
• The more economical first stage of heat is the primary heat
source during recovery, minimizing use of the expensive
second-stage heat.
• Comfort and energy savings can be achieved in both
heating and cooling.
• Heat cycling reduced, extending equipment life.
RECOVERY FROM UNOCCUPIED
The heat pump heat recovery ramp is 3°F (1.6°C) per hour.
This differs from the 5°F (2.8°C) per hour for conventional
systems. The 3°F helps the system use the economical heat
pump more and the expensive auxiliary heat less. The cooling
ramp is 5°F, the same as for conventional systems.

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

GENERAL OPERATION INFORMATION

Conventional System
The T7200 and T7300D,F Thermostats with Q7300A,G,H
Subbases are designed for conventional heat/cool
applications.

Cycle Rates

Heat Pump Operation

The thermostat control algorithm maintains the temperature
by cycling stages of heating or cooling to meet setpoint.

The T7200E and T7300E,F Thermostats with Q7300C,D,H
Subbases are designed for heat pump applications. Additional
information is required when configured for heat pump
applications.

Subbase Auxiliary Relay

O AND B TERMINALS FOR HEATING OR COOLING CHANGEOVER
The Q7300C controls heat pump changeover. The Q7300D,H
is only used in a heat pump application when the heat pump
controls the reversing valve changeover. See Table 12 for the
operation of the O and B terminals on the Q7300C, H2003.
O AND B TERMINALS ON A CONVENTIONAL SUBBASE
Conventional subbase O and B terminals can be used to drive
dampers and valves. The O terminal is energized on a call for
cool and the B terminal is energized on a call for heat.
Table 12. Operation of Q7300 O and B terminals.
System Selection
Heat

O Terminal
Open

Cool

B Terminal
Closed

Closed

Open

Closed

Open

Emergency Heat

Open

Closed

Off

Auto (Heat)

Auto (Cool)b

When the system is calling for heat or is de-energized, but
the last function was heat.
b
When the system is calling for cool or is de-energized, but
the last function was cool.
c
When the last function was heating, the operation is the
same as Auto (Heat). If the last function was cooling, the
operation is the same as Auto (Cool).
FAN OPERATION
When the fan is set to On, the fan is energized continuously in
the Occupied period. The Auto setting energizes the fan with
the heating or cooling system. If the subbase is Q7300D, the
fan cycles with Y1 and W1 during Unoccupied period.
EMERGENCY HEAT (SELECT T7300 THERMOSTATS ONLY)
With the system set for Em Heat, auxiliary heat serves as
stage one; compressor stages are locked off. The fan cycles
with the auxiliary heat.
COMMUNICATING SUBBASE
Select T7300F Thermostats with the Q7300H Communicating
Subbase are designed for conventional or heat pump
applications in a LonWorks® network. The Q7300H Subbase
allows remote access and the sharing of clock, schedule,
setpoints, bypass and other system parameters in a
LONWORKS® network. See Fig. 33 for a T7300F/Q7300H
wiring layout in a LONWORKS® network.

The Q7300 Auxiliary Relay output acts as a time-of-day switch
to be used with an economizer minimum position control. The
normally open (A1) auxiliary relay contacts are closed during
the Occupied period and open during the Unoccupied period.
The normally closed (A3) auxiliary relay contacts are open
during the Occupied period and closed during the Unoccupied
period. The contacts are in the normal state during recovery.

Interfacing with Electromechanical
Economizers (Subbases with Auxiliary Relay)
Mechanical cooling is often used when outside temperatures
are in the 50°F (10°C) to 60°F (16°C) range and humidity is
below 50 percent. In central and northern climates, hundreds
of hours fall into this temperature category. By permitting 80 to
100 percent outside air into the system, mechanical cooling
may not be needed at all, particularly during Spring and Fall.
An economizer is used to take advantage of the outside air.
The typical economizer consists of an outside air damper,
motor, outdoor air changeover control and a minimum position
potentiometer. The motor controls the dampers. Suitability of
the outside air for cooling is determined by the outdoor air
changeover control. The potentiometer is used for adjusting
the minimum position of the economizer dampers, which
provide a minimum amount of fresh air for ventilation.
The economizer reduces compressor run time, thereby saving
energy and extending the compressor life. The drawback to
using the economizer is that during the Unoccupied period, if
there is no call for cool or outdoor air is not suitable for free
cooling, the economizer is controlled to minimum position.
This position allows some percentage of outdoor air to enter
the building, regardless of air suitability. The situation can
cause the heating or cooling to run more often than if suitable
outdoor air is permitted to enter the building.
The thermostat can take advantage of an economizer by
connecting the subbase auxiliary relay contacts (A1 and A2)
to control the economizer minimum position potentiometer.
The contacts close during the Occupied period, allowing the
economizer to operate normally. The contacts open during the
Unoccupied period, disabling the minimum position feature of
the economizer. The open contacts cause the economizer to
drive dampers fully closed instead of staying at minimum open
position. This reduces the possibility of unsuitable outdoor air
from entering the building, which lowers the internal load on
the HVAC system and saves additional energy.

Other Uses for the Auxiliary Relay
Examples of other uses of the auxiliary relay are hot water
heaters, lighting or baseboard heat. The additional loads are
connected to the auxiliary relay contacts on the subbase. The
contacts are rated for 1.6A at 30 Vac, but can be adapted to
higher current applications with the use of an external relay
and transformer. See Fig. 19.
63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

TROUBLESHOOTING GUIDE

L1
L2
1
(HOT)

Refer to Table 13 for troubleshooting information.

Q7300 SUBBASE

TO
LOAD

A2
A3
AUXILIARY
RELAY
CONTACTS

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.

RELAY REQUIRED (R8222 OR SIMILAR).

M4944

Fig. 19. Use of external relay and transformer for
auxiliary loads greater than 1.6A.
Table 13. Troubleshooting Information.
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; if so, reset
the circuit breaker.
— check if the system fuse is blown; if so, replace
the fuse.
— check if the HVAC equipment power switch on
the is in the Off position; if so, set to the On
position.
— check wiring between thermostat and HVAC
equipment and 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.

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

Unable to configure
Installer Setup

63-4355—4

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.

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)

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 flashes on the LCD.

• Reset DIP switch 1 on back of thermostat to enable
keypad.
• Enter Installer Setup number 25 or 40 and reconfigure
keypad lockout level.

Installer Setup is locked out.

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

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Table 13. Troubleshooting Information. (Continued)
Symptom
Temperature settings
change from original
setting.

Possible Cause

Action

• Check that the heating setpoint is lower than the
Trying to set heat and cooling setpoints
too close together. Automatic changeover
cooling setpoint.
• Check Installer Setup number 30 to identify the
thermostat models have a deadband.
Example: cool setpoint: 72, deadband: 3,
deadband between heating and cooling setpoints.
heat setpoint: 68; changing heat setpoint
Reconfigure if desired.
to 70 automatically changes cool setpoint
to 73.

Room temperature is out Remote temperature sensing is not
of control.
working.

Checkout all remote sensors.

Heating will not come on. No power to the thermostat.

Heating will not come on Thermostat minimum off time is activated • Wait up to five minutes for the system to respond.
• Enter Installer Setup number 38. Reconfigure
(Continued).
and wait indicator is displayed.
minimum off time (if required).
System selection is not set to Heat.

Set system selection to Heat.
• Check that X terminal is connected to the system
transformer.
• Check for 24 Vac between X and R or RC terminals.
— If missing 24 Vac:
— check if the circuit breaker is tripped; if so, reset
the circuit breaker.
— check if the system fuse is blown; if so, replace
the fuse.
— check if the HVAC equipment power switch on
the is in the Off position; if so, set to the On
position.
— check wiring between thermostat and HVAC
equipment and replace any broken wires and
tighten any loose connections.
— If 24 Vac is present, proceed with troubleshooting.

Cooling will not come on. No power to the thermostat.

Thermostat minimum off time is activated • Wait up to five minutes for the system to respond.
• Enter Installer Setup number 33. Reconfigure
and wait indicator is displayed.
minimum off- time (if required).
System selection is not set to Cool.
System on indicator
(flame: heat,
snowflake: cool) is
displayed, but no warm
or cool air is coming from
the registers.

Set system selection to Cool.

Conventional heating equipment turns on Wait one minute after seeing the on indicator and then
the fan only once the furnace has warmed check the registers.
up to a setpoint.
Heating or cooling equipment is not
operating.

Verify operation of heating or cooling equipment in selftest.

CROSS REFERENCE
All T7300/Q7300 Series 2000 models are different from the existing T7300/Q7300 T8611 and T8621 devices as summarized in
Table 14.

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Table 14. Differences from existing T7300/Q7300 to new T7300/Q7300 Series 2000 devices.
Feature/Function

Present T7300/Q7300, T8611, T8621 Families

T7300/Q7300 Series 2000 Family

System switching

Mechanical switch on Q7300 subbase.

Keyboard entry on T7300 thermostat.

Fan switching

Mechanical switch on Q7300 subbase.

Keyboard entry on T7300 thermostat.

Installer configuration

Field settings made via DIP switches on the back of the
thermostat and subbase.

Field settings made through the T7300
thermostat keyboard.

Device color

Beige or Premier White®.

Taupe or Premier White®.

Refer to Table 15 for thermostat and subbase cross referencing information.
Table 15. Thermostat and Subbase Cross Reference.
Model Number

Description

Trade Replacement

Q7300A

Multistage conventional subbase; system switch: none; fan switch: none.

Q7300A1000

1-stage heat and 1-stage cool.

T7300F2002/Q7300A2008

Q7300A1018

2-stage heat and 2-stage cool.

T7300F2002/Q7300A2016

Q7300A1034

1-stage heat and 1-stage cool; Trane part no. BAS-0444. T7300F2002/Q7300A2008

Remarks

Q7300A1042

2-stage heat and 2-stage cool; Trane part no. BAS-0445. T7300F2002/Q7300A2016

Q7300A1059

2-stage heat and 2-stage cool; Micrometl part no. 901-3. T7300F2002/Q7300A2016

Q7300A1067

2-stage heat and 2-stage cool; Carrier part no.
HH93AX005.

T7300F2002/ Q7300A2016 Wiring differences (old=new): C=X, A1=A2,
A2=A1.

Q7300A1075

1-stage heat and 1-stage cool; gray color.

T7300F2002/Q7300A2008

Q7300A1083

2-stage heat and 2-stage cool; gray color.

T7300F2002/Q7300A2016

Q7300B

Multistage conventional subbase; system switch: AUTO-COOL-OFF-HEAT; fan switch: AUTO-ON.

Q7300B1008

2-stage heat and 2-stage cool.

T7300F2010/Q7300A2016

Q7300B1016

2-stage heat and 2-stage cool; Lennox part no. 81G6001. T7300F2010/Q7300A2016

Q7300B1024

2-stage heat and 2-stage cool; York part no. 025-27507.

T7300F2010/Q7300A2016 Wiring differences (old=new): B=X.

Q7300B1032

2-stage heat and 2-stage cool; Trane part no. BAS-0446. T7300F2010/Q7300A2016

Q7300B1040

2-stage heat and 2-stage cool; Carrier part no.
HH93AX004.

T7300F2010/Q7300A2016 Wiring differences (old=new): C=X, A1=A2,
A2=A1.

Q7300B1057

2-stage heat and 2-stage cool; Snyder General part no.
1520510.

T7300F2010/Q7300A2016

Q7300B1065

2-stage heat and 2-stage cool; Snyder General part no.
490249B-04.

T7300F2010/Q7300A2016

Q7300B1073

2-stage heat and 2-stage cool; Honeywell TRADELINE® T7300F2010/Q7300A2016 Wiring differences (old=new): B=X.
model.

Q7300B1081

2-stage heat and 2-stage cool; gray color.

Q7300C

Multistage heat pump subbase; system switch: AUTO-COOL-OFF-HEAT-EM HEAT; fan switch: AUTO-ON.

Q7300C1006

Single-stage heat pump with auxiliary heat (2H/1C).

T7300F2010/ Q7300C2004 Wiring differences (old=new): W1=W2, B=A3.

Q7300C1014

2-stage heat pump with auxiliary heat (3H/2C).

T7300F2010/Q7300C2012 Wiring differences (old=new): B=A3.

Q7300C1022

2-stage heat pump with auxiliary heat (3H/2C); Lennox
part no. 81G6901.

T7300F2010/Q7300C2012 Wiring differences (old=new): B=A3.

Q7300C1030

2-stage heat pump with auxiliary heat (3H/2C); York part
no. 025-27508.

T7300F2010/Q7300C2012 Wiring differences (old=new): B=X, X=E.

Q7300C1048

Single-stage heat pump with auxiliary heat (2H/1C); Trane T7300F2010/Q7300C2004 Wiring differences (old=new): W1=W2, B=A3.
part no. BAS-0447.

Q7300C1055

2-stage heat pump with auxiliary heat (3H/2C); Trane part T7300F2010/Q7300C2012 Wiring differences (old=new): B=A3.
no. BAS-0048.

Q7300C1063

Single-stage heat pump with auxiliary heat (2H/1C);
Micrometl part no. 901-24.

T7300F2010/Q7300C2004 Wiring differences (old=new): W1=W2, B=A3.

Q7300C1071

2-stage heat pump with auxiliary heat (3H/2C).

T7300F2010/Q7300C2012 Wiring differences (old=new): B=A3.

Q7300C1089

2-stage heat pump with auxiliary heat (3H/2C); Honeywell T7300F2010/Q7300C2012 Wiring differences (old=new): B=X, X=E.
TRADELINE® model.

Q7300C1097

Single-stage heat pump with auxiliary heat (2H/1C).

63-4355—4

T7300F2010/Q7300A2016

T7300F2010/Q7300C2004 Wiring differences (old=new): W1=W2, B=A3.
24

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Table 15. Thermostat and Subbase Cross Reference. (Continued)
Model Number

Description

Trade Replacement

Remarks

Q7300C1105

2-stage heat pump with auxiliary heat (3H/2C); gray color. T7300F2010/Q7300C2012 Wiring differences (old=new): B=A3.

Q7300D

Multistage heat pump subbase; does not include O or B terminals; system switch: AUTO-COOL-OFF-HEAT-EM HEAT; fan
switch: AUTO-ON.

Q7300D1004

2-stage heat pump with auxiliary heat (3H/2C); Carrier
part no. HH93AX002.

T7300F2010/ Q7300D2002 Wiring differences (old=new): C=X, A1=A2,
A2=A1.

Q7300D1012

Single-stage heat pump with auxiliary heat (2H/1C);
Carrier part no. HH93AX003.

T7300F2010/ Q7300D2002 Wiring differences (old=new): C=X, A1=A2,
A2=A1.

Q7300D1020

2-stage heat pump with auxiliary heat (3H/2C); York part
no. 025-27724-000.

T7300F2010/ Q7300D2002 Wiring differences (old=new): B=X, X=X1.

Q7300D1038

2-stage heat pump with auxiliary heat (3H/2C).

T7300F2010/Q7300D2002

Q7300D1046

2-stage heat pump with auxiliary heat (3H/2C); Lennox
part no. 13H7601.

T7300F2010/Q7300D2002

Q7300D1053

Single-stage heat pump with auxiliary heat (2H/1C).

T7300F2010/Q7300D2010

Q7300D1061

2-stage heat pump with auxiliary heat (3H/2C); Honeywell T7300F2010/Q7300D2002 Wiring differences (old=new): B=X, X=X1.
TRADELINE® model.

Q7300D1079

2-stage heat pump with auxiliary heat (3H/2C); gray color. T7300F2010/Q7300D2002

Q7300D1087

Single-stage heat pump with auxiliary heat (2H/1C); gray T7300F2010/Q7300D2002
color.

Q7300E

Multistage conventional subbase; system switch: none; fan switch: AUTO-ON.

Q7300E1001

2-stage heat and 2-stage cool.

T7300F2010/Q7300A2016

Q7300E1019

2-stage heat and 2-stage cool; gray color.

T7300F2010/Q7300A2016

Q7300F

Multistage heat pump subbase; system switch: none; fan switch: none.

Q7300F1009

Single-stage heat pump with auxiliary heat (2H/1C).

T7300F2002/Q7300C2004

Q7300F1017

2-stage heat pump with auxiliary heat (3H/2C).

T7300F2002/Q7300C2012

Q7300F1025

Single-stage heat pump with auxiliary heat (2H/1C); gray T7300F2002/Q7300C2004
color.

Q7300F1033

2-stage heat pump with auxiliary heat (3H/2C); gray color. T7300F2002/Q7300C2012

Q7300F1041

Single-stage heat pump with auxiliary heat (2H/1C);
Carrier part no. HH93AX006.

Q7300G

Conventional heat pump subbase; system switch: AUTO-COOL-OFF-HEAT; fan switch: none.

Q7300G1007

1-stage heat and three-stage cool.

T7300F2010/Q7300G2005

Q7300G1015

1-stage heat and three-stage cool; gray color.

T7300F2010/Q7300G2005

Q7300L

Multistage conventional subbase used with ML984A and V5013; system switch: none; fan switch: AUTO-ON.

Q7300L1006

2-stage heat and 1-stage cool.

T7300F2010/Q7300L2004

Q7300L1014

2-stage heat and 1-stage cool; gray color.

T7300F2010/Q7300L2004

T7300F2002/Q7300C2004 Wiring differences (old=new): C=X.

T7200A

1-stage heat and 1-stage cool conventional thermostat.

T7200A1006

Honeywell logo.

T7200D2008

T7200A1022

Honeywell logo with international faceplate.

T7200D2008

T7200B

1-stage heat and 1-stage cool heat pump thermostat.

T7200B1004

Honeywell logo.

T7200E2005

T7200B1012

Mammoth logo; part no. 71116701.

T7200E2005

T7200B1020

Carrier logo; part no. HH07AX010A.

T7200E2005

T7300A

Multistage conventional and heat pump thermostat.

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Table 15. Thermostat and Subbase Cross Reference. (Continued)
Model Number

Description

T7300A1005

Honeywell logo.

T7300A1013

York logo; part no. 025-27506.

T7300A1021

Lennox logo; part no. 81G5901.

T7300A1039

Trane logo; part no. THT-0608.

T7300A1047

Micrometl logo; part no. 901-114.

T7300A1054

Honeywell logo with international faceplate.

T7300A1062

Carrier logo; part no. HH07AX005.

T7300A1070

Roca logo with international faceplate.

T7300A1088

Honeywell logo with Spanish faceplate.

T7300A1104

Honeywell logo; Premier White® color.

T7300A1120

Luxaire logo; part no. 6ET04700224A.

Trade Replacement

Remarks
See subbase description for replacement
information.

T7300B

Multistage conventional and heat pump thermostat with 3-HOUR OVERRIDE key on cover.

T7300B1003

Honeywell logo.

See subbase description for replacement
information.

T7300B1011

Climate Control logo; part no. 490249B-05.

T7300B1029

McQuay logo; part no. 490249B-06.

T7300B1037

Arcoaire logo; part no. 1506746.

T7300B1045

Comfortmaker logo; part no. 1505746.

T7300B1052

Honeywell logo; Premier White® color.

T7300C

Multistage conventional and heat pump thermostat with limited access cover.

T7300C1001

Honeywell logo.

T7300C1019

Honeywell logo; Premier White® color.

T8611M

Three-stage heat and 2-stage cool heat pump thermostat; System: EM HEAT-HEAT-OFF-AUTO-COOL; fan switch: ON-AUTO.

T8611M7008

Honeywell logo; TRADELINE® model.

T7300E2004/Q7300C2020 Wiring differences (old=new): C=X, X4 to X
field-installed jumper required.

T8611M7040

Honeywell logo; TRADELINE® model; remote sensor
capability.

T7300E2020/Q7300C2020 Wiring differences (old=new): C=X, X4 to X
field-installed jumper required; purchase new
remote 2-wire sensors separately.

T8611M7057

Honeywell logo; TRADELINE® Premier White® color
model; remote sensor capability.

T7300E2020/Q7300C2020 Wiring differences (old=new): C=X, X4 to X
field-installed jumper required; purchase new
remote 2-wire sensors separately.

T8611M7065

Trol-A-Temp® by Honeywell logo; Premier White® color.

None

T8611M7073

Trane logo; white styling; part no. TAYSTAT502.

T7300E2004/Q7300C2020 Wiring differences (old=new): B=X, F=X1,
X2=E, Y1=Y, X4 to X field-installed jumper
required.

T8621A

1-stage heat and 1-stage cool conventional thermostat; two transformer capability; system switch: HEAT-AUTO-COOL-OFF;
fan switch: ON-AUTO.

See subbase description for replacement
information.

See Trol-A-Temp® representative for
replacement.

T8621A7002

Honeywell logo; TRADELINE® model.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621A7010

Honeywell logo; Canadian TRADELINE® model.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621A7028

Amana logo.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621A7036

Trane logo; part no. THT-0605, order no. 13510323-15-7. T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621A7044

Honeywell logo; TRADELINE® model; remote sensor
capability.

T8621A7051

McQuay logo; Premier White® color; part no. 067114201. T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621A7069

Honeywell logo; TRADELINE® Premier White® color
model; remote sensor capability.

T8621B

1-stage heat and 2-stage cool conventional thermostat; one transformer capability; System: HEAT-AUTO-COOL-OFF; fan
switch: ON-AUTO

63-4355—4

T7300D2049/Q7300A2008 Wiring differences (old=new): C=X; purchase
new remote 2-wire sensors separately.
T7300D2049/Q7300A2008 Wiring differences (old=new): C=X; purchase
new remote 2-wire sensors separately.

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Table 15. Thermostat and Subbase Cross Reference. (Continued)
Model Number

Description

Trade Replacement

Remarks

T8621B7000

Carrier logo; LOW and HIGH SPEED LED; used on
multispeed equipment; part no. HH07AX011.

T7300D2007/Q7300A2008 Wiring differences (old=new): L=X1; X4 to X
and RC to RH field-installed jumper required.

T8621B7018

BDP multi-logo; LOW and HIGH SPEED LED; used on
multispeed equipment; part no. HH07AX012.

T7300D2007/Q7300A2008 Wiring differences (old=new): L=X1; X4 to X
and RC to RH field-installed jumper required.

T8621B7026

Honeywell logo; TRADELINE® model; Premier White®
color; direct replacement for T8621B7000 and
T8621B7018.

T7300D2007/Q7300A2008 Wiring differences (old=new): L=X1; X4 to X
and RC to RH field-installed jumper required.

T8621C

2-stage heat and 1-stage cool conventional thermostat; two transformer capability; system switch: HEAT-AUTO-COOL-OFF;
fan switch: ON-AUTO.

T8621C7008

Honeywell logo; TRADELINE® model.

T7300D2007/Q7300A2040 Wiring differences (old=new): C=X.

T8621C7016

Honeywell logo; Canadian TRADELINE® model.

T7300D2007/Q7300A2040 Wiring differences (old=new): C=X.

T8621C7032

Trane logo; system switch: HEAT-OFF-COOL; one
transformer; dual fuel switch; part no. TAYSTAT302.

T7300D2007/Q7300A2040 Wiring differences (old=new): B=X; RC to RH
field-installed jumper required.

T8621D

2-stage heat and 2-stage cool conventional thermostat; two transformer capability; system switch: HEAT-AUTO-COOL-OFF;
fan: ON-AUTO.

T8621D7006

Honeywell logo; TRADELINE® model.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621D7014

Honeywell logo; Canadian TRADELINE® model.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621D7022

Honeywell logo; TRADELINE® model; system switch:
HEAT-OFF-COOL; dual fuel switch; O and B terminals.

T7300D2007/Q7300A2057 Wiring differences (old=new): C=X.

T8621D7030

Trane logo; part no. THT-0607; order no. 13510323-17-7. T7300D2007/ Q7300A2008 Wiring differences (old=new): C=X.

T8621D7048

BDP multi-logo.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621D7055

Lennox logo; one transformer capability; part no.
27H2901.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X. RC to RH
field-installed jumper required.

T8621D7063

Trol-A-Temp® by Honeywell logo; system switch: HEATOFF-COOL; O and B terminals.

None

Wiring differences (old=new): C=X; see Trol-ATemp® representative for replacement.

T8621D7071

Trol-A-Temp® by Honeywell logo; no system or fan
switching.

None

See Trol-A-Temp® representative for
replacement.

T8621D7089

Carrier logo; part no. HH641-103.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621D7097

Honeywell logo; TRADELINE® model; remote sensor
capability.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X; purchase
new remote 2-wire sensors separately.

T8621D7105

Friedrich logo; L terminal; extra switch for louver control;
part no. 616-789-01.

None

T8621D7113

Honeywell Logo; Canadian TRADELINE® Premier
White® color model.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621D7139

McQuay logo; Premier White® color; part no. 067114301. T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621D7147

Honeywell logo; TRADELINE® Premier White® color
model; remote sensor capability.

See OEM for replacement information.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.; purchase
new remote 2-wire sensors separately.

T8621D7154

Carrier Weathermaker logo; part no. H07AX014.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621D7162

Carrier Zone Perfect logo; part no. HH07AX015.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621D7170

Honeywell logo; TRADELINE® Premier White® color
model.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621D7188

Carrier logo; Premier White® color; part no.
HH07AT014W.

T7300D2007/Q7300A2008 Wiring differences (old=new): C=X.

T8621E

2-stage cool only model with louver control; system switch: COOL-OFF; fan switch: ON-AUTO.

T8621E7003

Friedrich logo; L terminal; extra switch for louver control;
part no. 616-789-00.

Y7200

1-stage heat and 1-stage cool heat pump thermostat.

Y7200B1009

Contains six T7200B1020 Thermostats; Carrier part no.
50QE90016101.

Y7300

Multistage T7300 thermostat and Q7300 subbase.

None

See OEM for replacement information.

T7200E2005

Wiring differences (old=new): C=X.

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Table 15. Thermostat and Subbase Cross Reference. (Continued)
Model Number

Description

Trade Replacement

Remarks

Y7300A1000

Contains one T7300A1047 Thermostat and one
Q7300A1059 Subbase; Micrometl part no. 1060A-100.

T7300F2002/Q7300A2016 Wiring differences (old=new): B=X.

Y7300A1018

Contains one T7300A1062 Thermostat and one
T7300F2002/Q7300C2004
Q7300F1041 Subbase; Carrier part no. 50QE90028101.

Y7300B1008

Contains one T7300A1013 Thermostat and one
Q7300B1024 Subbase; York part no. 025-27504; York
model no. 2ET04700224.

Y7300B1016

Contains one T7300B1045 Thermostat and one
T7300F2010/Q7300A2016
Q7300B1057 Subbase; Comfortmaker part no. 1505748.

Y7300B1024

Contains one T7300B1037 Thermostat and one
Q7300B1057 Subbase; Arcoaire part no. 1506748.

T7300F2010/Q7300A2016

Y7300C1006

Contains one T7300A1013 Thermostat and one
Q7300C1030 Subbase; York part no. 025-27505; York
model no. 2ET04700324.

T7300F2010/Q7300C2012 Wiring differences (old=new): B=X, X=E.

Y7300C1014

Contains one T7300A1047 Thermostat and one
Q7300C1063 Subbase; Micrometl part no. 1060A-200.

T7300F2010/Q7300C2004 Wiring differences (old=new): W1=W2, B=A3.

Y7300D1004

Contains one T7300A1013 Thermostat and one
Q7300D1020 Subbase; York part no. 025-27724-000;
York model no. 2ET04700424A.

T7300F2010/Q7300D2002 Wiring differences (old=new): B=X, X=L1.

T7300F2010/Q7300A2016

Table 16. T7300/Q7300 Series 2000 Cross Reference.
Figure
Model Number Number

Trade
Replacement

Description

Remarks

Q7300A

Multistage conventional subbase used with T7300D or F Thermostat.

Q7300A2008

One-stage heat and one-stage cool; TRADELINE® model; remote
sensor capability; taupe color.

Q7300A2008

Q7300A2016

Two-stage heat and two-stage cool; TRADELINE® model; remote
sensor and discharge air sensor capability; taupe color.

Q7300A2016

Q7300A2040

Two-stage heat and one-stage cool; TRADELINE® model; taupe
color.

Q7300A2040

Direct replacement for T8621C
Thermostats.

Q7300A2057

Two-stage heat and two-stage cool; TRADELINE® model; O and B
terminals; taupe color.

Q7300A2057

Direct replacement for T8621D7022
Thermostat.

Q7300C

Multistage heat pump subbase used with T7300E or F Thermostat.

Q7300C2004

Single-stage heat pump with auxiliary heat (2H/1C); TRADELINE®
Q7300C2004
model; remote sensor and discharge air sensor capability; taupe color

Q7300C2012

Two-stage heat pump with auxiliary heat (3H/2C); TRADELINE®
Q7300C2012
model; remote sensor and discharge air sensor capability; taupe color.

Q7300C2053

Two-stage heat pump with auxiliary heat (3H/2C); TRADELINE®
model; CHECK LED and FAIL LED; taupe color.

Q7300D

Multistage heat pump subbase used with T7300E or F Thermostat.

Q7300D2002

Two-stage heat pump with auxiliary heat (3H/2C); TRADELINE®
Q7300D2002
model; remote sensor and discharge air sensor capability; taupe color.

Q7300D2010

Single-stage heat pump with auxiliary heat (2H/1C); TRADELINE®
Q7300D2010
model; remote sensor and discharge air sensor capability; taupe color.

Q7300G

Multistage conventional subbase used with T7300D or F Thermostat.

Q7300G2005

Q7300L

Multistage subbase used with ML7984A, V5011, V5013 and T7300D or F Thermostat.

Q7300L2004

31, 32

T7200D

One-stage heat and one-stage cool conventional thermostat.

63-4355—4

Q7300C2020

Direct replacement for T8621A
Thermostats.

Direct replacement for T8611M
Thermostats.

Three-stage heat and three-stage cool (3H/3C); TRADELINE® model; Q7300G2005
remote sensor and discharge air sensor capability; taupe color.
Two-stage heat and one-stage cool (2H/1C); TRADELINE® model; Q7300L2004
multispeed fan; contacts for damper control relay and pump interlock
relay; HEAT LED and COOL LED; remote sensor and discharge air
sensor capability; taupe color.

Direct replacement for Q7300L1006
and Q7300L1014 Subbases.

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

Table 16. T7300/Q7300 Series 2000 Cross Reference. (Continued)
Figure
Model Number Number

Trade
Replacement

Description

T7200D2008

Honeywell logo; no system or fan settings.

T7200E

One-stage heat and one-stage cool heat pump thermostat.

T7200E2005

T7300D

Multistage conventional thermostat used with Q7300A,G, or L Subbase.

T7300D2007

Refer to
subbase

Honeywell logo; no system or fan settings.

Honeywell logo; TRADELINE® model; remote sensor capability;
system settings: Heat-Off-Cool-Auto; taupe color.

Remarks

T7200D2008

Direct replacement for T7200A
Thermostats.

T7200E2005

Direct replacement for T7200B
Thermostats.

T7300D2007

Direct replacement for T8621
Thermostats.

T7300E2020

Direct replacement for T8611M
Thermostats.

T7300E

Multistage heat pump thermostat used with Q7300C or D Subbase.

T7300E2020

Refer to
subbase

T7300F

Multistage thermostat for heat pump (Q7300C or D Subbase) and conventional (Q7300A,G or L Subbase) applications.

T7300F2002

Refer to
subbase

Honeywell logo; SUPER TRADELINE® model; remote sensor and
T7300F2002
discharge air sensor capability; no system or fan settings; taupe color.

T7300F2010

Refer to
subbase

Honeywell logo; SUPER TRADELINE® model; remote sensor and
discharge air sensor capability; system settings: configurable; fan
settings: Auto-On; taupe color.

Honeywell logo; TRADELINE® model; remote sensor capability;
system settings: Em Heat-Heat-Off-Cool-Auto; taupe color.

T7300F2010

WIRING DIAGRAMS (FIG. 20-34)

THERMOSTAT
X

HEATING
RELAY OR
VALVE COIL

COMPRESSOR
CONTACTOR

COOL
CHANGEOVER
VALVE

COMPRESSOR
CONTACTOR

FAN
RELAY
1

FAN
RELAY

L1
(HOT)
L2

1
L1
(HOT)

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
M4943A

Fig. 21. T7200E with one-stage heat pump system.

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.

JUMPER RC AND RH FOR SINGLE TRANSFORMER SYSTEMS.
M4942A

Fig. 20. T7200D with wallplate.

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

SUBBASE
RC

CA5

CA4

CA3

CA2

CA1

COMPRESSOR
CONTACTOR

EQUIPMENT
MONITOR 2

FAN
RELAY

HEAT
RELAY

T7147 REMOTE COMFORT ADJUST MODULE
GND

EQUIPMENT
MONITOR 1

1
L1
(HOT)

L1
(HOT)

L2
1

HEATING
TRANSFORMER

COOLING
TRANSFORMER

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A SYSTEM WITH ONE TRANSFORMER.

CONNECT GND TO EARTH GROUND.

INSTALL FIELD JUMPER BETWEEN X4 AND X TO POWER LEDS FROM SYSTEM TRANSFORMER.
M4939B

Fig. 22. Typical hookup of T7300D,F/Q7300A2008 in one-stage heat
and one-stage cool conventional system with two transformers.

SUBBASE
2
AS

5
G

3
W2

W1 RH

A2 A3 C5

COMPRESSOR
CONTACTOR 1

DISCHARGE
AIR
SENSOR

HEAT
RELAY 2

EQUIPMENT

ECONOMIZER

MONITOR 2
FAN
RELAY

COMPRESSOR
CONTACTOR 2

EQUIPMENT

CA2 CA1
CA5
CA4 CA3
T
T
T7147 REMOTE COMFORT ADJUST MODULE
GND

MONITOR 1

HEAT
RELAY 1

L1
(HOT)

4
L1
(HOT)
L2

L2
1

HEATING
TRANSFORMER

COOLING
TRANSFORMER

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.

JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A
SYSTEM WITH ONE TRANSFORMER.

USE A1 AND A2 WHEN THE CONTACTS SHOULD BE NORMALLY
CLOSED IN OCCUPIED MODE. USE A2 AND A3 WHEN THE
CONTACTS SHOULD BE NORMALLY OPEN IN OCCUPIED MODE.

CONNECT GND TO EARTH GROUND.

INSTALL FIELD JUMPER BETWEEN X4 AND X TO POWER LEDS
FROM SYSTEM TRANSFORMER.

USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.

DISCHARGE AIR SENSOR IS ONLY COMPATIBLE WITH T7300F
THERMOSTAT.

Fig. 23. Typical hookup of T7300D,F/Q7300A2016 in two-stage heat
and two-stage cool conventional system with two transformers.

63-4355—4

M4945B

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

SUBBASE
5
AS

A1 A2

FAN
RELAY

DISCHARGE
AIR
SENSOR

EQUIPMENT
CA5 CA4
CA3 CA2 CA1 T
T
T7147 REMOTE COMFORT ADJUST MODULE
GND

MONITOR 2
COMPRESSOR
CONTACTOR 1

HEAT
RELAY 2

EM. HT.
RELAY

EQUIPMENT
MONITOR 1

4
2

ECONOMIZER
COOL
CHANGEOVER
VALVE

HEAT
CHANGEOVER
VALVE

L1
(HOT)
L2
TRANSFORMER

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.

USE A1 AND A2 WHEN THE CONTACT SHOULD BE NORMALLY CLOSED IN OCCUPIED MODE.

CONNECT GND TO EARTH GROUND.

INSTALL FIELD JUMPER BETWEEN X4 AND X TO POWER LEDS FROM SYSTEM TRANSFORMER.

DISCHARGE AIR SENSOR IS ONLY COMPATIBLE WITH T7300F THERMOSTAT.

M4946B

Fig. 24. Typical hookup of T7300E,F/Q7300C2004 in two-stage heat and one-stage cool heat pump system.

SUBBASE
5
AS

3
A1 A2

DISCHARGE
AIR
SENSOR

AUX.
HEAT

COMPRESSOR
CONTACTOR 2

EQUIPMENT
MONITOR 2

FAN
RELAY
COMPRESSOR
CONTACTOR 1

CA2
CA1
CA4
CA3
T
T
T7147 REMOTE COMFORT ADJUST MODULE
GND

CA5
EQUIPMENT

EM. HT.
RELAY

COOL
CHANGEOVER
VALVE

MONITOR 1

HEAT
CHANGEOVER
VALVE

ECONOMIZER

L1
(HOT)
L2
TRANSFORMER

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION INSTRUCTIONS.

USE A1 AND A2 WHEN THE CONTACTS ARE NORMALLY CLOSE IN OCCUPIED MODE.

CONNECT GND TO EARTH GROUND.

INSTALL FIELD JUMPER BETWEEN X4 AND X POWER LEDS FROM SYSTEM TRANSFORMER.

DISCHARGE AIR SENSOR IS ONLY COMPATIBLE WITH T7300F THERMOSTAT.

M4947B

Fig. 25. Typical hookup of T7300E,F/Q7300C2012 in three-stage heat and two-stage cool heat pump system.

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

SUBBASE
4

6
L

X1 X2

HEAT
RELAY 2

COMPRESSOR
CONTACTOR 2

EM.
MODE

C5 C4

EQUIPMENT
MONITOR 2

EM. HT.
RELAY

COMPRESSOR
CONTACTOR 1

HEAT
RELAY 3

CA5 CA4 CA3 CA2 CA1
EQUIPMENT

FAN
RELAY

COOL
CHANGEOVER
VALVE

T7147 REMOTE COMFORT
ADJUST MODULE

GND

MONITOR 1

HEAT
CHANGEOVER
VALVE

1
L1
(HOT)
L2
TRANSFORMER

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.

INSTALL FIELD JUMPER BETWEEN X4 AND X POWER LEDS
FROM SYSTEM TRANSFORMER.

EM. MODE IS ON CONTINUOUSLY IN EMERGENCY HEAT MODE.
24 VAC ARE PRESENT DURING EMERGENCY HEAT MODE.

CONNECT GND TO EARTH GROUND.

JUMPER W2 TO Y2 FOR SECOND COMPRESSOR. W3 IS AUXILIARY HEAT.

EM. HT. RELAY CYCLES IN EMERGENCY HEAT MODE.

M4940B

Fig. 26. Typical hookup of T7300E,F/Q7300C2053 in three-stage heat and two-stage cool
heat pump system.This thermostat and subbase can replace the T8611M.

SUBBASE
4
AS

AS X

W1 R

2
A2 A3

DISCHARGE
AIR
SENSOR

COMPRESSOR
CONTACTOR 1

EM. HT.
RELAY

HEAT
RELAY 2

EQUIPMENT

ECONOMIZER

MONITOR 2
5
FAN
RELAY

COMPRESSOR
CONTACTOR 2

EQUIPMENT

HEAT
RELAY 3

CA5 CA4 CA3 CA2 CA1
T
T
T7147 REMOTE COMFORT ADJUST MODULE
GND

MONITOR 1
3

1
HEAT
RELAY 1

L1
(HOT)
L2

1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

TRANSFORMER

USE A1 AND A2 WHEN THE CONTACTS SHOULD BE NORMALLY CLOSED IN OCCUPIED MODE. USE A2 AND A3 WHEN THE
CONTACTS SHOULD BE NORMALLY OPEN IN OCCUPIED MODE.

CONNECT GND TO EARTH GROUND.

INSTALL FIELD JUMPER BETWEEN X4 AND X TO POWER LEDS FROM SYSTEM TRANSFORMER.

USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.

DISCHARGE AIR SENSOR IS ONLY COMPATIBLE WITH T7300F THERMOSTAT.

M4948B

Fig. 27. Typical hookup of T7300E,F/Q7300D2002 in three-stage heat and two-stage cool heat pump system.

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

SUBBASE
5
AS

W1 RH

3
A2 A3

COMPRESSOR
CONTACTOR 1

DISCHARGE
AIR
SENSOR

HEAT
RELAY 2

COMPRESSOR
CONTACTOR 2

ECONOMIZER

EQUIPMENT
MONITOR 2

FAN
RELAY

COMPRESSOR
CONTACTOR 3

6
CA2
CA1
T
CA5
CA4
CA3
T7147 REMOTE COMFORT ADJUST MODULE

EQUIPMENT

T
GND

MONITOR 1

HEAT
RELAY 3

HEAT
RELAY 1

L1
(HOT)

L1
(HOT)
L2

L2
1

HEATING
TRANSFORMER

COOLING
TRANSFORMER
1

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.

JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A
SYSTEM WITH ONE TRANSFORMER.

USE A1 AND A2 WHEN THE CONTACTS SHOULD BE NORMALLY CLOSED
IN OCCUPIED MODE. USE A2 AND A3 WHEN CONTACTS
SHOULD BE NORMALLY OPEN IN OCCUPIED MODE.

CONNECT GND TO EARTH GROUND.

INSTALL FIELD JUMPER BETWEEN X4 AND X TO POWER LEDS
FROM SYSTEM TRANSFORMER.

USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.

DISCHARGE AIR SENSOR IS ONLY COMPATIBLE WITH T7300F
THERMOSTAT.
M4949B

Fig. 28. Typical hookup of T7300D,F/Q7300G2005 in three-stage heat and three-stage cool conventional system.

SUBBASE

AS X

DISCHARGE
AIR
SENSOR

COMPRESSOR
CONTACTOR 1

EM. HT.
RELAY

W1 R

HEAT
RELAY 2

2
A2 A3

EB EB

LonWorks® BUS

HEAT
RELAY 3

COMPRESSOR
CONTACTOR 2

ECONOMIZER

4
FAN
RELAY

CA5 CA4 CA3 CA2 CA1
T
T
T7147 REMOTE COMFORT ADJUST MODULE
GND

1
HEAT
RELAY 1

LonWorks® BUS

L1
(HOT)
L2

1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
2

USE A1 AND A2 WHEN CONTACTS ARE NORMALLY CLOSED IN OCCUPIED MODE.
USE A2 AND A3 WHEN CONTACTS ARE NORMALLY OPEN IN OCCUPIED MODE.

CONNECT GND TO EARTH GROUND.

USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.

TRANSFORMER

M16057

Fig. 29. Typical hookup of T7300F/Q7300H2011 in three-stage heat
and two-stage cool heat pump system (without O/B terminals).

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

SUBBASE

3
A1 A2

EB EB

AUX.
HEAT

COMPRESSOR
CONTACTOR 2

DISCHARGE
AIR
SENSOR

FAN
RELAY
COMPRESSOR
CONTACTOR 1

LonWorks®
BUS

HEAT
CHANGEOVER
VALVE

CA2
CA1
CA4
CA3
T
T
T7147 REMOTE COMFORT ADJUST MODULE
GND

CA5

EM. HT.
RELAY

ECONOMIZER

COOL
CHANGEOVER
VALVE

1
L1
(HOT)

LonWorks®
BUS

L2
1

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION INSTRUCTIONS.

USE A1 AND A2 WHEN CONTACTS ARE NORMALLY CLOSED IN OCCUPIED MODE.

CONNECT GND TO EARTH GROUND.

TRANSFORMER

M16056

Fig. 30. Typical hookup of T7300F/Q7300H2003 in three-stage heat
and two-stage cool heat pump system (with O/B terminals).

SUBBASE

Y3 X W3

3
A2 A3

W1 RH

EB EB

COMPRESSOR
CONTACTOR 1

DISCHARGE
AIR
SENSOR

COMPRESSOR
CONTACTOR 2

HEAT
RELAY 2

ECONOMIZER
LonWorks®
BUS

5
FAN
RELAY

CA2
CA1
T
CA5
CA4
CA3
T7147 REMOTE COMFORT ADJUST MODULE

COMPRESSOR
CONTACTOR 3

LonWorks®
BUS

GND

1
HEAT
RELAY 3

L1
(HOT)

HEAT
RELAY 1

4
L1
(HOT)
L2

L2
1

HEATING
TRANSFORMER

COOLING
TRANSFORMER
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
2

JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A
SYSTEM WITH ONE TRANSFORMER.

USE A1 AND A2 WHEN CONTACTS ARE NORMALLY CLOSED
IN OCCUPIED MODE. USE A2 AND A3 WHEN CONTACTS
ARE NORMALLY OPEN IN OCCUPIED MODE.

CONNECT GND TO EARTH GROUND.

USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.

M16058

Fig. 31. Typical hookup of T7300F/Q7300H2029 in three-stage heat and three-stage cool conventional system.

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

SUBBASE
AS FC

HIGH
SPEED
FAN
RELAY

DISCHARGE
AIR
SENSOR

RM BM

EB EB

DAMPER
CONTROL
RELAY

ML7984
VALVE
ACTUATOR

LonWorks® BUS

LOW
SPEED
FAN
RELAY

COOLING
RELAY

CA5 CA4 CA3 CA2 CA1 T T
T7147 REMOTE COMFORT
GND
ADJUST MODULE

PUMP
INTERLOCK
RELAY

1
L1
(HOT)

L1
(HOT)

LonWorks® BUS

2
1

TRANSFORMER

FAN TRANSFORMER

1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 CONNECT GND TO EARTH GROUND.

M16059

3 SEE TABLE 2 FOR VALVE AND VALVE ACTUATOR MODELS.

Fig. 32. Typical hookup of T7300F/Q7300H2037 in two-stage heat and one-stage cool conventional system.

NOTEBOOK PC

T7300

RS-232
LonWorks® BUS

SLTA

T7300

MODEM

MODEM
RS-232
LonWorks® BUS

SLTA
T7300

T7300

MODEM
RS-232
LonWorks® BUS

SLTA

M16063A

Fig. 33. Typical hookup for T7300F/Q7300H devices in LONWORKS® network.

63-4355—4

T7200D,E, T7300D,E,F AND Q7300 SERIES 2000 PROGRAMMABLE COMMERCIAL THERMOSTATS AND SUBBASES

SUBBASE
AS

GL
8

DISCHARGE
AIR
SENSOR

ML7984
9
VALVE
ACTUATOR
T5

DAMPER
CONTROL
RELAY

5
W

COOLING
RELAY

CA5

CA4

CA3

CA2

CA1

HIGH
SPEED
FAN
RELAY

LOW
SPEED
FAN
RELAY

PUMP
INTERLOCK
RELAY

T7147 REMOTE COMFORT ADJUST MODULE
GND

6
1
L1
(HOT)

L1
(HOT)

L2
FAN
TRANSFORMER

1
TRANSFORMER
1

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.

INDEPENDENT FAN TRANSFORMER IS OPTIONAL. JUMPER FC TO R
WHEN SINGLE TRANSFORMER IS USED.

REFER TO ML7984 INSTRUCTIONS FOR TERMINAL CONNECTIONS.

T7047 HAS T-T TERMINALS ONLY.

180

CONNECT GND TO EARTH GROUND.

DISCHARGE AIR SENSOR IS ONLY COMPATIBLE WITH T7300F
THERMOSTAT.

JUMPER GH AND GL FOR SINGLE SPEED FAN.

SET THE DIP SWITCHES ON THE ML7984 TO MECHANICAL
SERIES 90 TO USE WITH Q7300L
M4950B

2W RESISTOR MUST BE INSTALLED AS SHOWN.

Fig. 34. T7300D,F/Q7300L2004 for two-stage heating with three-position
ML7984 Valve Actuator and V5013B Valve and one-stage cooling.

Home and Building Control Home and Building Control

Honeywell Asia Pacific Inc. Honeywell Europe S.A.

Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422

Room 3213-3225
Sun Hung Kai Centre
No. 30 Harbour Road
Wanchai
Hong Kong

63-4355—4

Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Scarborough, Ontario
M1V 4Z9

B.B. Rev. 10-01

Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.

3 Avenue du Bourget
1140 Brussels
Belgium

Honeywell Latin American
Region
480 Sawgrass Corporate Parkway
Suite 200
Sunrise FL 33325

www.honeywell.com

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Creator                         : HBC
Title                           : T7200D,E, T7300D,E,F and Q7300 Series 2000 Programmable Commercial Thermostats and Subbases
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Subject                         : PRODUCT DATA
Author                          : HBC

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Honeywell Series 2000 T7300D Users Manual T7200D,E, T7300D,E,F And Q7300 Programmable Commercial Thermostats Subbases

TRADELINE Q7300L 63-4355

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