Honeywell T7300F User manual

X-XX UL

INSTALLATION INSTRUCTIONS

® U.S. Registered Trademark

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

PRESS LOWER EDGE OF CASE TO LATCH.

ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE OR WALLPLATE.

62-0125-3

62-0125—3 2

T7300F SERIES 2000 COMMERCIAL MICROELECTRONIC CONVENTIONAL

OR HEAT PUMP THERMOSTAT

Heat

Auto

System Fan

Off Auto

Mon

Wait

Room

Remote

%Humid

Auto

Sav

Comm Cool Duct

Only

Recovery

Med

Cool

TueWedThuFriSatSun

Occupied 12 Override

M4916

Aux Ht

Em Ht

Set Program

Set Day/Time

Start Time Temporary Setting Enrg

Em Heat

Fig. 2. Thermostat key locations and descriptions.

Set System and Fan (select models)

The system default setting is Heat. The fan default is set

so the fan operates continuously in Occupied and Recov-

ery mode and with the heating or cooling equipment in

Unoccupied mode. Use the System and Fan keys to

change the settings.

The system settings are:

Em Heat (Q7300C,D and H heat pump models):

Emergency heat relay is on continuously. Thermo-

stat 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 operation depending on the

indoor temperature.

The fan settings are:

On: Fan operates continuously.

Auto: Equipment controls the fan in the Unoccupied

mode. The Intelligent Fan™ operation (Installer

Setup number 17) offers three choices for the fan

operation in Occupied mode:

—fan turns on only when there is a call for heating

or cooling,

—fan operates continuously in Occupied mode,

—fan is on continuously in Occupied and recovery

modes.

Set Temperature

Refer to Table 1 for the default temperature setpoints. See

Owners Guide form number 63-4356 for complete

instructions on changing the setpoints.

Table 1. Default Temperature Setpoints.

INSTALLER SETUP

NOTE: For most applications, the thermostat factory-

settings do not need to be changed. Review

the factory-settings in Table 2 and if no

changes are necessary, go to the Installer

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 table includes all the

configuration options available.

A combination of key presses are required to use the

Installer Setup feature.

—To enter the Installer Setup, press and hold the Heat/

Cool Settings key with both the increase ▲▲ and ▼▼

decrease keys until the first number is displayed. All

display segments appear for approximately three

seconds before the number is displayed. See Fig. 3

and 4.

Control Occupied Unoccupied

Heating 70°F (21°C) 55°F (13°C)

Cooling 78°F (25.5°C) 90°F (32°C)

Set Program Set Temperature Change

Time/Temp

Occupied

Temp

Unoccupied

Start Time Day

System Fan

Copy

Occupied

Start Time

Run

Program

Temporary

Occupied

Continuous

Unoccupied

Set Current

Day/Time Clear

Start Time

Unoccupied

Temp

Heat/Cool

Settings

Auto

System Fan

Mon

Room

Occupied

Heat

M10233A

SET OVERRIDE

TEMPERATURE

OFFSET AND

ACTIVATE

TEMPORARY

OVERRIDE

ENTER HOLD MODE SET CURRENT

DAY AND TIME

CLEAR PROGRAM PERIOD COPY ONE

PROGRAMMED DAY

TO ANOTHER DAY

SELECT FAN

OPERATION

SELECT

SYSTEM

OPERATION

CHANGE BETWEEN HEATING

AND COOLING SETPOINTS

AND SCROLLS BACKWARDS

THROUGH INSTALLER SETUP

NUMBERS AND SYSTEM TEST

DECREASE

TEMPERATURE

OR TIME SETTING

INCREASE

TEMPERATURE

OR TIME SETTING

SET UNOCCUPIED TEMPERATURE

SETPOINTS AND SCROLLS

THROUGH INSTALLER SETUP

AND SYSTEM TEST

SET OCCUPIED

TEMPERATURE

SETPOINTS

SET CURRENT DAY OR

PROGRAM DAY

ENTER UNOCCUPIED

PROGRAM MODE

ENTER OCCUPIED

PROGRAM MODE

RETURNS TO

NORMAL

OPERATIONS

Fig. 3. LCD display of all segments.

62-0125—3

T7300F SERIES 2000 COMMERCIAL MICROELECTRONIC CONVENTIONAL

OR HEAT PUMP THERMOSTAT

Installer Setup numbers are listed in Table 2.

CAUTION

Possible equipment damage.

Fan must be running when system is operating

or equipment damage can result.

Heat pump and electric heat systems must be

configured in Installer Setup 2 to prevent equip-

ment damage caused by the system from running

without the fan.

IMPORTANT

Only configurable numbers are shown on the

device. Example: If thermostat does not have a

system key, Installer Setup Number 12 will not be

displayed. Review Table 2 factory-settings and

mark any desired changes in the Actual Setting

column. When Installer Setup is complete,

review the settings to confirm that they match

the system.

Fig. 4. Installer Setup number and setting display.

—To advance to the next Installer Setup number, press

the Unoccupied Temp key.

—To return to a previous Installer Setup number, press

the Heat/Cool Settings key.

—To change a setting, use the increase ▲▲ or ▼▼

decrease key.

—To exit the Installer Setup, press the Run Program

key. The Installer Setup is automatically exited if no

key presses are made for four minutes.

(Continued)

M10238B

INSTALLER SETUP

NUMBER DISPLAY

(COLUMN 2

OF TABLE 2)

FACTORY SETTING

OR OTHER CHOICE

DISPLAY (COLUMN 3

OR 5 OF TABLE 2)

Table 2. Thermostat Installer Setup Options.

Installer Setup

Number

(Press

Unoccupied

Temp Key

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.

1Electric heat applications

where thermostat controls

fan operation in heat

mode.

Output stages

of heating. 3 Depends

subbase.

Stages of heat. 0, 1, 2,

or 3 0—No heating.

1—One stage of heat.

2—Two stages of heat.

3—Three stages of heat.

Heating cycle

rate. 44Stage 1—4 cph. 3, 6, 8

or 9 3—3 cph used for hot

water systems or high

efficiency furnaces.

5 4 Stage 2—4 cph.

64 Stage 3—4 cph. 6—6 cph used for

conventional systems.

74Emergency heat relay

is on continuously.

Highest stage of heat

cycles at 4 cph

(Q7300C,D,H [heat

pump models only]).

8—8 cph used for

conventional systems.

9—9 cph used for electric

heat systems.

Output stages

of cooling. 8 Depends

subbase.

Stages of cooling. 0, 1, 2

or 3 0—No cooling.

1—One stage of cool.

2—Two stages of cool.

3—Three stages of cool.

Cooling cycle 9 Stage 1—4 cph. 3 3—3 cph.

rate. 10 Stage 2—4 cph. 44 cph.

11 Stage 3—4 cph.

System setting

adjustment

(models with

System key).

12 Depends

model.

System selection. 0, 1 or

20—System setting key is

operational.

1—Auto setting is

disabled.

2—Auto only setting.

62-0125—3 4

T7300F SERIES 2000 COMMERCIAL MICROELECTRONIC CONVENTIONAL

OR HEAT PUMP THERMOSTAT

Table 2. Thermostat Installer Setup Options (Continued).

(Continued)

aNumber 2 must be set to 1 to extend fan operation.

bNumber 22 must be set to 1 and remote sensor(s) must be installed.

Installer Setup

Number

(Press

Unoccupied

Temp key

Factory Setting Other Choices

(Press ∆or ∇key to change) Actual

Setting

Select to change) Display Description Display Description

Not used. 13 — — — — —

Degree

temperature

display.

14 0 Temperature is

displayed in °F. 1Temperature is displayed

in °C.

Displaying

temperature. 15 0 Temperature is

displayed. 1Temperature is not

displayed.

Clock format. 16 0 12-hour clock format. 1 24-hour clock format.

Intelligent

Fan™

operation.

17 2 Fan operates

continuously in

Occupied and

Recovery mode. Fan

operates with call for

heating or cooling in

Unoccupied mode.

0 or 1 0—Fan only operates with

calls for heating or

cooling in Occupied

and Unoccupied

modes.

1—Fan operates

continuously in

Occupied mode. Fan

operates with calls for

heating or cooling in

Unoccupied mode.

Auxiliary

Contact

Operation.

18 0 0Time-of-day

contacts. 11—Economizer contacts.

Extended fan

operation in

heatinga.

19 0 No extended fan

operation after the

call for heat ends.

1Fan 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.

1Fan operation is extended

90 seconds after the call

for cool ends.

Fan key adjust-

ment (models

with Fan key).

21 0 Fan setting key is

operational. 1Fan setting key is Auto

only.

Remote

sensing. 22 0 Remote sensing not

activated. 1Remote sensing

activated.

Temperature

averaging

network

23 0 Temperature

averaging disabled. 1Temperature averaging

between local sensor and

remote sensor(s)

activated.

Not used. 24 — — — — —

Keypad lockout

level (keypad

lockout is

enabled and

disabled by dip

switch 1 on

back of

thermostat).

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

thermostat except

system and fan

settings, temporary

setpoint, clock and day

adjustments.

2—Lockout all keys except

set Current Day/Time,

increase ∆and

decrease ∇keys.

3Lockout all keys except

temporary occupied,

Set Current Day/Time

(for clock, day

adjustments).

62-0125—3

T7300F SERIES 2000 COMMERCIAL MICROELECTRONIC CONVENTIONAL

OR HEAT PUMP THERMOSTAT

Table 2. Thermostat Installer Setup Options (Continued).

(Continued)

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

Duration of

temporary

override.

26 3 3—Three hour

override. 1, 8 or

12 1—One hour override.

8—Eight hour override.

12—Twelve hour override.

Not used. 27 thru 29 — — — — —

Deadband. 30 2 Heating and cooling

setpoints can be set

no closer than 2°F

(1.1°C).

3 thru

10 Heating and cooling

setpoints can be set no

closer than the chosen

value:

3—3°F (1.7°C)

4—4°F (2°C)

5—5°F (2.5°C)

6—6°F (3°C)

7—7°F (3.5°C)

8—8°F (4°C)

9—9°F (4.5°C)

10—10°F (5°C)

Interstage

control point

(Q7300C,D

only).

31 0 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 for heating

and cooling.

0 or 1 No minimum on-time or

1-minute minimum on -

time for heating and

cooling.

Minimum off-

time for the

compressor.

33 4 4-minute minimum

off- time for the

compressor.

0, 1, 2,

3 or 5 Minimum number of

minutes (0 thru 5) the

compressor will be off

between calls for the

compressor.

Temperature

range stops in

heating.

34 90 Highest setpoint for

heating. 40 to

89 Temperature range (1°F

[0.6°C] increments) for

heating setpoint.

Temperature

range stops in

cooling.

35 45 Lowest setpoint for

cooling. 46 to

99 Temperature range (1°F

[0.6°C] increments) for

cooling setpoint.

Not used. 36 — — — — —

62-0125—3 6

T7300F SERIES 2000 COMMERCIAL MICROELECTRONIC CONVENTIONAL

OR HEAT PUMP THERMOSTAT

IMPORTANT

Review the settings to confirm that they match

the system. Press Run Program to exit the

Installer Setup. Be sure to set the current day

and time immediately.

Set Current Day and Time

1. Press Set Current Day/Time.

NOTE: On initial power up or after an extended

power loss, 1:00 pm flashes on the LCD

until a key is pressed.

Table 2. Thermostat Installer Setup Options (Continued).

M4951B

Set Current

Day/Time

SetProgram Set Temperature Change

Time/Temp

Occupied

Temp

Unoccupied

StartTime Day

System Fan

Copy

Occupied

StartTime

Run

Program

Temporary

Occupied

Continous

Unoccupied

SetCurrent

Day/Time Clear

StartTime

Unoccupied

Temp

Heat/Cool

Settings

Mon

Set Day/Time

M4952B

SetProgram Set Temperature Change

Time/Temp

Occupied

Temp

Unoccupied

StartTime Day

System Fan

Copy

Occupied

StartTime

Run

Program

Temporary

Occupied

Continous

Unoccupied

SetCurrent

Day/Time Clear

StartTime

Unoccupied

Temp

Heat/Cool

Settings

Day

Tue

Set Day/Time

M4953B

SetProgram Set Temperature Change

Time/Temp

Occupied

Temp

Unoccupied

StartTime Day

System Fan

Copy

Occupied

StartTime

Run

Program

Temporary

Occupied

Continous

Unoccupied

SetCurrent

Day/Time Clear

StartTime

Unoccupied

Temp

Heat/Cool

Settings

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

Number

(Press

Unoccupied

Temp Key

Factory Setting Other Choices

(Press ∆

∆or ∇

∇key to change) Actual

Setting

Select change) Display Description Display Description

Temperature

display

adjustment.

37 0 No difference in

displayed temperature

and actual room

temperature.

1 thru 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-

times in

heating.

38 4 4—4-minute minimum

off-time. 0, 1, 2,

3, or 5 Minimum number of

minutes (0 thru 5) the

heating equipment will be

off between calls for heat.

Not used 39 — — — — —

Installer Setup

lockout (keypad

lockout is

enabled and

disabled by dip

switch 1 on

back of

thermostat).

40 0 0—No Installer Setup

lockout. 11—Installer Setup lockout

activated.

62-0125—3

T7300F SERIES 2000 COMMERCIAL MICROELECTRONIC CONVENTIONAL

OR HEAT PUMP THERMOSTAT

M4954A

SetProgram Set Temperature Change

Time/Temp

Occupied

Temp

Unoccupied

StartTime Day

System Fan

Copy

Occupied

StartTime

Run

Program

Temporary

Occupied

Continous

Unoccupied

SetCurrent

Day/Time Clear

StartTime

Unoccupied

Temp

Heat/Cool

Settings

Auto

System Fan

Mon

Room

Occupied 1

Heat

Run

Program

4. Press Run Program.

INSTALLER SYSTEM TEST

Use the Installer System Test to check the thermostat

configurations and operation. Refer to Table 3 for a list of

the available system tests.

Table 3. Installer System Tests.

Test

Number System Test Description

10 to 19 Heating equipment can be turned on and

off.

20 to 29 Emergency heat (Q7300C,D,H [heat

pump models only]) equipment can be

turned on and off.

30 to 39 Cooling equipment can be turned on and

off.

40 to 49 Fan equipment can be turned on and off.

60 0 to

60 19 Keyboard keys test.

70 to 79 Thermostat information including date

code, software versions and subbase

identification are displayed.

Press and hold the increase ▲▲ and ▼▼decrease keys, at

the same time, until 10 appears. All segments of the LCD

are displayed for three seconds before 10 appears. See

Fig. 5 and 6.

M10257A

TEST NUMBER

Heat

Auto

System Fan

Off Auto

Mon

Wait

Room

Remote

%Humid

Auto

Sav

Comm Cool Duct

Only

Recovery

Med

Cool

TueWedThuFriSatSun

Occupied 12 Override

M4916

Aux Ht

Em Ht

Set Program

Set Day/Time

Start Time Temporary Setting Enrg

Em Heat

To start the system test:

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.

Fig. 5. LCD Display of all segments.

Fig. 6. Test number display.

NOTE: If a duct temperature sensor is installed, the duct

temperature is also displayed.

Refer to Table 4 and Thermostat Information section for

directions and results of the specific system tests.

NOTE: Press Run Program to exit the system test. The

system test times out after four minutes without

any key presses.

Table 4. Installer System Test Options.

Key to

Press Test

Number Description

Heating Equipment System Test

Heat/Cool Settings 10 Enter heating equipment system test.

∆11 Stage-one heat turns on. The system fan is also energized.

∆12 Stage-two heat turns on. Stage-one heat and system fan remain on.

∆13 Stage-three heat turns on. Stage-one and stage-two heat with the system fan

are on.

∇12 Stage-three heat turns off.

∇11 Stage-two heat turns off.

∇10 Stage-one heat and system fan turn off.

62-0125—3 8

T7300F SERIES 2000 COMMERCIAL MICROELECTRONIC CONVENTIONAL

OR HEAT PUMP THERMOSTAT

Table 4. Installer System Test Options (Continued).

Key to

Press Test

Number Description

Emergency Heating Equipment System Test (Q7300C,D,H [heat pump models only]).

Heat/Cool Settings 20 Change from heating to emergency heating equipment system test.

∆21 Emergency heat and system fan turn on.

∆22 Highest stage heat turns on.

∇21 Highest stage heat turns off.

∇20 Emergency heat turns off.

Cooling Equipment System Test

Heat/Cool Settings 30 Change from heating or emergency heating to cooling equipment system test.

∆31 Stage-one cooling and system fan turn on.

∆32 Stage-two cool turns on. Stage-one cool and system fan remain on.

∆33 Stage-three cool turns on (Q7300G only). Stage-one and stage-two cool with

system fan remain on.

∇32 Stage-three cool turns off.

∇31 Stage-two cool turns off.

∇30 Stage-one cool and system fan turn off.

Fan Equipment System Test

Heat/Cool Settings 40 Change from cooling to fan equipment system test.

∆41 Fan 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 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.

62-0125—3

T7300F SERIES 2000 COMMERCIAL MICROELECTRONIC CONVENTIONAL

OR HEAT PUMP THERMOSTAT

Thermostat Information

1. Press the Heat/Cool Settings key to access the

thermostat information.

M4934

M4931

2. Press the increase ▲▲ key to display the production

date code. The first two large digits are the month

and the third digit is the last digit of the year.

(Example: 036 = March 1996.)

3. Press the increase ▲▲ key again to display the

software identification code. (Example: 02 =

software ID code 2.)

4. Press the increase ▲▲key again to display the

software revision number. (Example: 001 = revision

number 1.)

M4932A

M10229

M4933A

M10235

BACK OF THERMOSTAT

DIP 1 IS ON

DIP 2 IS NOT USED.

M10290

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 activates

the lockout features. The switch must be set to the ON

position (up) to activate the lockout feature. See Fig. 7.

The factory-setting is off (down). Remove the thermostat

from the subbase and set the switch to ON if keypad

lockout is desired. The level of lockout is determined by

the Installer Setup numbers 25 and 40.

Fig. 7. Set keypad lockout dip

switch 1 on back of thermostat.

NOTE: If changing Installer setup number 25 or 40, set

dip switch 1 to ON prior to entering Installer

setup.

62-0125—3 10

T7300F SERIES 2000 COMMERCIAL MICROELECTRONIC CONVENTIONAL

OR HEAT PUMP THERMOSTAT

(Continued)

Symptom Possible Cause Action

Display does not

turn on. Thermostat is not powered. • Check that the 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 power switch on the HVAC

equipment 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.

Bad thermostat location. Relocate the thermostat.

Display shows two dashes

and a degree sign. Installer Setup 22 is set for remote sensing and the sensor

is missing or the circuit is open or shorted.

Temperature settings

will not change.

(Example: Cannot

Upper or lower temperature

limits were reached. Check the temperature setpoints:

•Heating limits are 40 to 90°F (7 to 31°C)

•Cooling limits are 45 to 99°F (9 to 37°C)

set heating higher or

cooling lower.) The setpoint temperature

range stops were configured. Check Installer Setup number 34 and 35 and reconfigure

the setpoint stops.

Keypad is locked. When a

locked key is pressed, LOC

flashes on the LCD.

•Reset dip switch 1 on the back of the thermostat to

enable the keypad.

•Enter Installer Setup number 25 or 40 and reconfigure

keypad lockout level.

Unable to configure

Installer Setup Installer Setup is locked out. Reset the dip switch 1 on the back of the thermostat to

enable the keypad.

Temperature settings

change from original

setting.

Heating and cooling

setpoints set too close

together. There is a

deadband in automatic

changeover thermostat

models. Example: cool

setpoint = 72, deadband = 3,

heat setpoint = 68, changing

heat setpoint to 70

automatically changes the

cool setpoint to 73.

•Check that the heating setpoint is lower than the cooling

setpoint.

•Check Installer Setup number 30 to identify the

deadband between heating and cooling setpoints.

Reconfigure if desired.

Room temperature is

out of control. Remote temperature sensing

is not working. Checkout all remote sensors.

TROUBLESHOOTING GUIDE

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