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X-XX UL

INSTALLATION INSTRUCTIONS

® U.S. Registered Trademark
Copyright © 1998 Honeywell Inc.  •            •   All Rights Reserved

T7300F Series 2000 Commercial

Microelectronic Conventional

or Heat Pump Thermostat

APPLICATION

The T7300F Thermostat provides electronic control of
24 Vac commercial single zone heating, ventilating and air
conditioning (HVAC) equipment. When used with a
Q7300A,G,L Subbase, the thermostat is automatically
configured for conventional heat/cool applications. When
used with a Q7300H Subbase, the thermostat is config-
ured for conventional or heat pump applications, depend-
ing on subbase model.  When used with a Q7300C,D
Subbase, the thermostat is automatically configured for
heat pump applications. The T7300F is also field
configurable for automatic or manual changeover between
heating and cooling. The system and fan selections are
made by keyboard entry. All T7300F Thermostats require
a common wire to supply power.

RECYCLING NOTICE

If this control is replacing a control that contains
mercury in a sealed tube, do 

not place your old

control in the trash.

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

INSTALLATION

When Installing this Product…

1. Read these instructions carefully. Failure to follow

the instructions can damage the product or cause a
hazardous condition.

2. Check the ratings given in the instructions and on

the product to make sure the product is suitable for
your application.

3. Installer must be a trained, experienced service

technician.

4. After completing installation, use these instructions

to check out the product operation.

Mount Thermostat on Subbase

The thermostat mounts on the subbase after it is installed.

1. Engage tabs at the top of thermostat and subbase .

See Fig. 1.

2. Press lower edge of case to latch.

NOTE:

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

Fig. 1. Mount thermostat on subbase.

SETTINGS

Using Thermostat Keys

The thermostat keys are used to:

set current time and day,

program times and setpoints for heating and cooling,

override the program temperatures,

display present setting,

set system and fan operation,

configure Installer Setup,

check Installer System Test

See Fig. 2 for key information.

M4824A

B.

  

PRESS LOWER EDGE OF CASE TO LATCH.

A.

  

ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE OR WALLPLATE.

62-0125-3

Summary of Contents for T7300F

Page 1: ...authority for instructions regarding recycling and the proper disposal of the old thermostat INSTALLATION When Installing this Product 1 Read these instructions carefully Failure to follow the instructions can damage the product or cause a hazardous condition 2 Check the ratings given in the instructions and on the product to make sure the product is suitable for your application 3 Installer must ...

Page 2: ...oints Table 1 Default Temperature Setpoints INSTALLER SETUP NOTE For most applications the thermostat factory settings do not need to be changed Review the factory settings in Table 2 and if no changes are necessary go to the Installer System Test section The Installer Setup is used by the installer to customize the thermostat to specific systems Installer Setup numbers are listed in Table 2 The t...

Page 3: ...FACTORY SETTING OR OTHER CHOICE DISPLAY COLUMN 3 OR 5 OF TABLE 2 Table 2 Thermostat Installer Setup Options Installer Setup Number Press Unoccupied Temp Key to Factory Setting Other Choices Press or key to change Actual Setting Select change Display Description Display Description Not used 1 Fan operationa 2 0 Conventional applica tions where equipment controls fan operation in heat mode 1 Electri...

Page 4: ...operates with calls for heating or cooling in Unoccupied mode Auxiliary Contact Operation 18 0 0 Time of day contacts 1 1 Economizer contacts Extended fan operation in heatinga 19 0 No extended fan operation after the call for heat ends 1 Fan operation is extended 90 seconds after the call for heat ends Extended fan operation in cooling 20 0 No extended fan operation after the call for cool ends 1...

Page 5: ... Disabled 1 thru 12 Temperature has to change more than the chosen value before the system calls for the next stage Example 68 F 20 C is the heat setpoint 2 F 1 1 C is the interstage setting temperature is 65 5 F 18 5 C the second stage turns on brings the temperature to 66 F 19 C and turns off The heat pump continues to run until the setpoint is met Minimum on time 32 2 2 minute minimum on time f...

Page 6: ...cupied Set Current Day Time Clear Start Time Unoccupied Temp Heat Cool Settings PM Tue Set Day Time 2 Press Day until the current day is displayed NOTE Sun Sunday Mon Monday Tue Tuesday Wed Wednesday Thu Thursday Fri Friday Sat Saturday 3 Press increase or decrease until the current time is displayed NOTE Tapping the Set Current Day Time will change the time in one hour increments Installer Setup ...

Page 7: ...before 10 appears See Fig 5 and 6 M10257A TEST NUMBER Heat Auto System Fan Off Auto Un Mon Wait Lo In Room Remote Humid Auto Sav AM PM Comm Cool Duct Only On Recovery Hi Med Cool TueWedThuFriSatSun Occupied 12 Override M4916 Aux Ht Aux Ht Em Ht Em Ht Set Program Set Day Time Set Day Time Start Time Temporary Setting Enrg Em Heat To start the system test CAUTION Possible Equipment Damage Equipment ...

Page 8: ... off Fan Equipment System Test Heat Cool Settings 40 Change from cooling to fan equipment system test 41 Fan turns on 40 Fan turns off Key Operation System Test Heat Cool Settings 60 2 Change from fan to key operation system test Unoccupied Temp 60 0 Unoccupied Temp test number is displayed Occupied Temp 60 1 Occupied Temp test number is displayed 60 3 Increase test number is displayed 60 5 Decrea...

Page 9: ...90 5 Press the increase key again to display the EEPROM identification code Example 314 EEPROM ID 314 6 Press the increase key again to display the subbase identification code Example HP heat pump subbase 7 Press Run Program to exit the system test mode The system test times out after four minutes without any key presses Set Keypad Lockout Switch The dip switch 1 on the back of the thermostat acti...

Page 10: ...or shorted Temperature settings will not change Example Cannot Upper or lower temperature limits were reached Check the temperature setpoints Heating limits are 40 to 90 F 7 to 31 C Cooling limits are 45 to 99 F 9 to 37 C set heating higher or cooling lower The setpoint temperature range stops were configured Check Installer Setup number 34 and 35 and reconfigure the setpoint stops Keypad is locke...

Page 11: ...nected to the system transformer Check for 24 Vac between X and R or RC and Y terminals If missing 24 Vac check if the circuit breaker is tripped if so reset the circuit breaker check if the system fuse is blown if so replace the fuse check if the system switch at the equipment is in the Off position if so set to the On position check wiring between thermostat and HVAC equipment and replace any br...

Page 12: ...UMP THERMOSTAT Home and Building Control Honeywell Limited Honeywell Limitée 35 Dynamic Drive Scarborough Ontario M1V 4Z9 62 0125 3 J S Rev 12 98 Printed in Taiwan R O C Home and Building Control Honeywell 1985 Douglas Drive North Minneapolis MN 55422 4386 www honeywell com yourhome ...

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