White Rodgers 90 Thermostat User Manual

INTRODUCTION

Thank you for purchasing

your new Comfort-Set^®90

Series thermostat. Your new

White-Rodgers Thermostat

uses solid state micro-

Adaptable to most 24 volt

light commercial forced air,

multistage or heat pump

systems with electric or

fossil fuel auxiliary.

thermostat configuration

begin on page 4. Program-

ming information begins on

page 7. Descriptions of the

thermostat’s features begin

on page 11.

computer technology to

You will find information

provide precise time/tem-

perature control. This ther-

mostat offers the flexibility

to design heating and cooling

programs that fit your needs.

about thermostat buttons and We have also added thumb

display in the component tabs to help you find sections

section beginning on page 2. of the manual.

Instructions for optional

Index

Configuration

Programming

Features

Orientation

Introduction

ORIENTATION

THE THERMOSTAT BUTTONS

Used to adjust the time backward,

Used to set the filter change-out

time, or to reset the filter change timer.

See inside front cover for illustration or to select the previous menu item.

showing button locations.

Sets the system mode (HEATing,

EMERgency, OFF, COOLing, or

AUTOmatic changeover).

Used to adjust the time forward, or

to select the next menu item.

(Blue arrow) Lowers temperature

setting (45°F or 7°C minimum)

BACK

FWD

Used with TIME

/TIME

(Red arrow) Raises temperature

setting (99°F or 37°C maximum)

to set the current day.

Used to adjust the clock one hour

forward or back.

Used to advance operation to the

next program period or advance to the

green for 1st stage, yellow for 2^ndstage, next day in programming mode.

The multi-color indicator glows:

Used to start or return to program

operation.

red for emergency heat and flashing

red for malfunction condition in

system.

Used to manually override

programming to hold at a selected

temperature.

This button (on top of the cover)

lights the display.

Used to enter and configure the

VACATION mode.

Used to initiate or review thermo-

Selects fan operation (see The

stat programming or advance to next

program period in programming mode.

Display

). This button is also used

to program the fan to run continuously

during a program period.

BACK

FWD

Used with TIME

/TIME

to set the clock.

Displays FAN ON when the fan is

THE DISPLAY

CHECK STAT appears when the

Displays system mode (HEAT,

thermostat detects certain problems

within itself. CHECK SYSTEM

appears when the thermostat detects

certain problems in heating or cooling

the system.

operating continuously. Displays FAN

AUTO when the fan cycles with the

heating or cooling system. Displays

PRG FAN ON when fan is pro-

grammed to be on during a period.

EMER, OFF, COOL, AUTO,

HOLD, or VACA). During program-

ming displays the time period

(OCCU, UNOC) being programmed..

In the configuration menu, the menu

item name is shown, one word at a

time (PRGM MODE, EMR, COOL

FAN DELA OFF, etc.).

Indicates the length of time

Displays the setpoint temperature.

Alternately displays room

remaining in a temporary hold

condition. Also indicates the length of

time remaining in VACATION mode.

temperature and time of day.

Shows the current day of the week.

When programming, shows the day(s)

being programmed.

The word HEAT or COOL will

appear above or below the setpoint if

CHECK BATTERY

STAT SYSTEM

HRS

CHECK BATTERY

PRG

FAN AUTO

HRS

FAN ON

area

is needed to display other

HEAT

°F

information.

MON TUE WED THU FRI SAT SUN

24 23

Figure 1. The Display

Orientation

CONFIGURATION

BACK

The configuration menus allow you to

set certain thermostat operating

characteristics to your system or

personal requirements.

for at least two seconds.

To exit either menu and return to

normal operation, press PROGRAM

RUN

. To re-enter to the User menu at

RUN

To enter the User Configuration menu,

any time press PROGRAM

RUN

FWD

press PROGRAM

to make sure then press TIME

and TIME

BACK

the thermostat is in the run program

at the same time. While in the

FWD

mode, then press TIME

TIME

and

menus, if you do not press any buttons

for two minutes, the thermostat will

revert to normal operation.

BACK

at the same time. The

display will show the first item in the

configuration menu.

The following charts (pages 5 & 6)

describe each item on the menus. Press

FWD

TIME

to move forward to the

BACK

next item in the menu or TIME

to move backward to the previous

item. Set these according to your

personal preference using

. To enter the Keypad Lock

menu, while in the User Menu, press

FWD

and hold TIME

and TIME

User Menu

Step

Press Button(s)

Displayed

(Factory Default)

Press

to select:

COMMENTS

Ref

Page

Adjusts temperature display higher or lower.

FWD

0 °F

5 LO to

5 HI

TIME

and TIME BACK

(room temperature)

Selects EMR option ON or OFF or L ON.

FWD

EMR

(ON)

OFF

or ON L

TIME

Adjusts temperature display to °F or °C.

(°F)

°C

FWD

Set Fan (one shot) option. Set the duration of a

temporary fan option.

SET FAN

(0)

0 - 6 HRS

OFF

FWD

TIME

Turns keypad beeper ON or OFF.

BEEP

(ON)

OFF delays starting second stage for economy.

ON starts second stage earlier with user intervention.

HEAT FAST

(OFF)

FWD

TIME

OFF delays starting second stage for economy.

ON starts second stage earlier with user intervention.

COOL FAST

(OFF)

Enables outdoor temperature sensor. Requires

optional remote sensor connected to terminal OT

and remote thermistor probe. Also displays outdoor

temperature if active.

TEMP OUT

(OFF)

Configuration

User Menu (Continued)

Telephone RUN program feature. Requires optional

X10 system.

FONE (Icon)

(OFF)

FWD

TIME

Shows accumulated time compressor has run.

COMP RUN TIME

(00)

(Compressor run time

in hours)

FWD

TIME

To reset to 00, press

Shows accumulated time AUXILIARY has run.

To reset to 00, press and

Returns to normal operation.

and

AUX RUN TIME

(00)

(AUXILIARY run time

in hours)

FWD

TIME

PROGRAM

RUN

Keypad Lockout Menu (access from User Menu)

Step

Press Button(s)

Displayed

(Factory Default)

Press

to select:

COMMENTS

Ref

Page

Partial Keypad lockout OFF or ON.

FWD

PART LOCK

(OFF)

TIME

and TIME

BACK

(hold for two

seconds)

Total Keypad lockout OFF or ON.

Returns to normal operation.

LOCK

(OFF)

FWD

TIME

PROGRAM

RUN

PROGRAMMING

MANUAL OPERATION

Fill out the blank schedule (page 10)

with the time and temperatures you

want in your program. Fill in every

space for your program.

To Set the Day:

Your Comfort-Set^®90 Series thermo-

stat can be used to control temperature

DAY

5. Press SET

. The display will

indicate a day of the week. Use TIME

manually (without programming). For

BACK

FWD

or TIME

to set to the

SYSTEM

manual operation, press

The same temperature can be repeated

more than once if you do not want the

temperature to change over several

time periods.

current day of the week.

select HEAT or COOL, then press

RUN

6. Press PROGRAM

HOLD

PROGRAM

. Use

to set the temperature as

desired.

To Set the Program:

SYSTEM

7. Press

to select HEAT (for

Entering Your Program

heating program) or COOL (for

cooling program).

PROGRAMMED OPERATION

Planning Your Program

The sample schedule (page 9) shows

the factory installed programs for

heating and cooling. The heating and

cooling programs are separate, and

must be programmed individually. To

To Set the Clock:

RUN

1. Press PROGRAM

VIEW

8. Press PROGRAM

one time.

TIME

2. Press SET

. The display will

The display will show OCCU and the

settings for time and temperature. The

display will also show MON for

Monday.

FWD

show the hour. Use TIME

BACK

TIME

to set to the current hour

and AM/PM designation.

use the factory program, set the clock

TIME

3. Press SET

again. The

9. If you program Monday the first

time you press PROGRAM

will be copied to the rest of the week.

RUN

and press PROGRAM

with the

display will show minutes. Use TIME

VIEW

SYSTEM

thermostat

set to Heat, Cool,

BACK

FWD

or TIME

current minutes.

to set to the

or Auto.

To program the other days of the week

ADV.

RUN

press

/DAY until you reach the

4. Press PROGRAM

Programming

day you wish to change and follow

Steps 10, 11 & 12. You can also copy

UNOC. Repeat steps 10 and 11 to

enter time and temperature for this

the program from one day to another.

period.

HOLD

To copy, press

/COPY. The

ADV.

13.Press PROGRAM

to change

display will show COPY, and all the

MON to TUE and show the OCCU

time and temperature settings. Repeat

steps 10 through 12 to enter times and

temperatures for this day.

other days of week will be flashing.

HOLD

Press

/COPY again to copy the

day into the rest of the week or press

BACK

FWD

TIME

or TIME

until

14.Continue through the entire

schedule, entering time and tempera-

ture for each day and period. When

you are satisfied that your program

matches your schedule, press PRO-

RUN

you reach the day you want to copy to

HOLD

and press

/COPY.

BACK

FWD

10.Press TIME

or TIME

to set the time on the display as

selected in your HEATING or

COOLING SCHEDULE. Be sure to

check the AM or PM on the display.

GRAM

. Programming is now

complete for this mode and your

program is running.

11.Press the red

or blue

15.To program the other mode, repeat

the procedure from step 7.

key to adjust the temperature to match

your schedule. If you want the fan ON

continuously during this period, press

FAN

VIEW

12.Press PROGRAM

one time.

OCCU on the display will change to

Sample Program Schedule

(Shows factory programming)

8:00 AM

70°F (21°C) 78°F (25°C)

5:00 PM

62°F (17°C) 85°F (29°C)

MON

TUE

WED

THU

FRI

SAT

SUN

Occupied (OCCU)

Unoccupied (UNOC)

Start Time

Heating Temperature

Cooling Temperature

Program Fan

Programming

Personal Program Schedule

MON

TUE

WED

THU

FRI

SAT

SUN

Occupied (OCCU)

Unoccupied (UNOC)

Start Time

Heating Temperature

Cooling Temperature

Program Fan

FEATURES

CONFIGURATION MENU FEATURES

Adjustable Temperature Display.

(User menu, Item 1) The room

temperature display can be adjusted to

read higher or lower by following the

User menu and adjusting the tempera-

ture to a higher or lower value. The

thermostat is calibrated at the factory

to display a very accurate room

early in order to make the building

temperature reach your program

setpoint at the time you specify. In

multistage heating, the thermostat will

start 8 minutes early for every 1°F

difference between the room tempera-

ture and the next programmed

temperature. In cooling and heat pump

applications, the thermostat uses 15

minutes per °F. For heating applica-

tions in large buildings where extra

time to reach the set temperature may

be desired, EMR Long may be

the room temperature (65°F) and the

setpoint (70°F) is 5°. 5° X 8 minutes

per °F = 40 minutes. The setpoint on

the display will actually change to

display 70° about 40 minutes early.

The maximum time the thermostat can

start early in heating is 75 minutes (or

3 hours, 45 minutes if EMR ON L is

selected). The maximum time in

cooling and heat pump applications is

3 hours and 45 minutes. Cooling or

heat pump applications start earlier

because it takes longer to reach the

desired temperature. This feature also

minimizes the use of the auxiliary

stages if conditions are such that the

compressor stages are adequate to

reach the desired setpoint.

temperature, but due to various

conditions and/or personal preference,

you may wish to adjust the thermostat

display higher or lower (up to 5°F).

For example, if the thermostat displays

a room temperature of 70° but you

want it to display 73°, you can adjust

it. To adjust, refer to the CONFIGU-

RATION section (page 5, item 1).

selected. When EMR ON L is selected

in the user menu (page 5, item 2) the

thermostat uses 15 minutes per °F.

EXAMPLE: If the temperature in the

room is 65°F and the thermostat is

programmed for 70°F at 7 AM, the

thermostat will start approximately 40

minutes early. The difference between

Selectable Energy Management

Recovery (EMR).

(User menu, Item 2) EMR causes the

thermostat to start operating the system

To select or deselect this feature, refer

to the CONFIGURATION section

(page 5, item 2).

Features

Fahrenheit or Celsius Tempera-

ture Display.

Beeper on.

or more degrees below room tempera-

ture. If Cool Fast is set to OFF, the

thermostat will delay the second stage

from 0 to 30 minutes based on how

well the first stage is keeping up with

your setting.

(User menu, Item 5) The thermostat

has a beeper that will emit a tone when

any key is pressed. In the user menu,

the BEEP feature can be turned OFF

(User menu, Item 3) This thermostat

is factory set to display temperature in

Fahrenheit. If you prefer, you may

configure the thermostat to display

Celsius. See the CONFIGURATION

section (page 5, item 3).

using

to provide silent

key operation.

Outdoor Temperature Sense.

(User menu, Item 8) A remote sensor

(F145-1378) may be installed for

outdoor temperature measurement. The

sensor must be properly connected and

Heat Fast.

One Shot Fan Control.

(User menu, Item 6) This feature,

when set to ON, will bring the second

stage of heating on any time you

(User menu, Item 4) This feature

allows you to have the fan run (“one

shot fan”) for a predetermined period

of time by pressing the FAN key twice

within 1.5 seconds. If a time is set in

the User menu (page 5, item 4) the

display will show FAN, # hrs and

PRG FAN ON for six seconds. After

six seconds the display will continue to

indicate PRG FAN ON for the time

period selected. After this time period,

the fan will return to normal operation.

To return the fan to normal operation

before the end of the time period, press

the FAN key.

manually raise the temperature three or enabled using the User menu. The

more degrees above room temperature.

If Heat Fast is set to OFF, the thermo-

stat will delay the second stage from 0

to 30 minutes based on how well the

first stage is keeping up with your

setting.

display shows the outdoor temperature

from -40° to 140°F by pressing the

light button twice within one second

when the thermostat is in program run

or hold mode.

Cool Fast.

(User menu, Item 7) This feature,

when set to ON, will bring the second

stage of cooling on any time you

manually lower the temperature three

Activate RUN PRG by Telephone.

(User menu, Item 9) With the optional tampering with the program. Two

TRADITIONAL FEATURES

Automatic Changeover.

keypad to prevent unauthorized

X-10 Telephone Responder, Model

TR551, and Universal Low Voltage

Module, UM506, installed, you can

make a telephone call to run your

program if the thermostat has been set

to Hold or Vacation Hold. These items

are available from Radio Shack.

levels of security are available, Total

Keypad Lockout or Partial Keypad

Lockout. Total Keypad Lockout

renders all buttons inoperative. Partial

Keypad Lockout allows only the

If you have a heating/cooling system,

the thermostat can be set to automati-

cally switch the system between

heating and cooling as needed. To set

your thermostat to this operating mode,

SYSTEM

to operate for temporary

press

button until AUTO is

temperature overrides. It also limits the

temperature to the maximum heating

and minimum cooling temperatures

used in your program. This is espe-

cially useful in buildings where

unscheduled events are common.

Anyone can change the temperature,

but only between the temperatures you

set and only for the number of hours

you specify if you set up your Hold

Till timing (see “Temporary Program

Override” (page 15). To select or

deselect this feature, refer to the

CONFIGURATION section (page 6,

Keypad Lock menu).

displayed on the screen.

Compressor Run Time and

Auxiliary Run Time.

Factory Preprogrammed Times

and Temperatures.

This thermostat has been programmed

at the factory. The chart in the

programming examples section lists

these factory settings. If the times and

temperatures are the same as your

schedule, you may simply run the

(User menu, Item 10 and 11) You can

see how long the compressor has run

(in hours) by viewing the User table,

Item 10. You can see how long the

system Auxiliary has run (in hours) by

viewing the User table, Item 11. These

can be reset to 00 when displayed by

factory installed program by pressing

pressing

time.

and

at the same

RUN

PROGRAM

Compressor Short-Cycle

Protection.

Your thermostat is designed to protect

your system against premature

Keypad Lockout.

(Keypad Lockout table) This security

feature allows you to lock out the

Features

compressor failure by “locking out”

the compressor. This ensures that the

compressor will stay off for at least

five minutes on each cycle. When the

thermostat is in compressor lock-out,

the word COOL will flash. During this

period, the compressor will not be

energized

fan is selected. This means at the time

you set the period to start, the fan will

come on and run until the next

program time period

PRG FAN ON is on the display. The

fan will continue to run through this

period as well as the previous one.

If the thermostat is in a period with

continuous fan and you want the fan to

cycle, press the FAN key. PRG FAN

ON on the display will turn off.

Example: Your thermostat is pro-

grammed with the original factory

settings for the Monday OCCU period

in the heating mode.

Air Filter Change-Out Indicator.

This feature allows the thermostat to

display CHNG FLTR (change filter)

after a set time of fan operation. This is

a reminder to change or clean your air

filter. The factory set interval for

CHNG FLTR to be displayed is 200

hours of fan operation. This can be set

anywhere from 0 to 1950 hours in 25

hour increments. A selection of 00 will

cancel this feature.

Programmable Fan Control.

This feature allows you to have your

fan operate continuously through one

or more programmed time periods.

This is useful if you want to have

constant air circulation during a

specific time period. If you do not use

this feature, the fan will cycle normally

with the heating and cooling system.

Pressing PROGRAM

will

VIEW

display OCCU, 8AM, 70 and PRG

FAN ON. Pressing the FAN key will

toggle the programmable fan off and a

second press would turn it back on.

When PRG FAN ON is in the upper

right of the display, your thermostat is

programmed to adjust the temperature

to 70° at 8AM and also bring the fan

on to run constantly until the next

program time period.

To program the fan, follow the steps in

the PROGRAMMING section. In each

time period, you can press the FAN

key to select a continuous fan or a

When CHNG FLTR is displayed, you

can clear it by pressing the FILTER

key. This resets the timer and starts

counting the hours until the next filter

change.

At the next time period you may

choose to continue the program fan

feature. Change to the next program

period and press the FAN key until

normally cycling fan. The display will

show PRG FAN ON when continuous

The following steps will allow you to

change the number of hours for filter

change-out.

contact the manufacturer of your

heating/cooling equipment.

• The thermostat sensor is not

functioning. If using a remote sensor,

check connections, wiring and power.

System and Thermostat Diag-

nostics.

1. If CHNG FLTR is on the display,

press the FILTER key once to reset

the timer. If you do not see CHNG

FLTR proceed to step 2.

After checking the above, press

RUN

PROGRAM

to reset the

The display will indicate CHECK

SYS if the room temperature does not

rise within two hours of the call for

heat. After two hours the thermostat

will quit calling for heat for one

minute (this allows some furnaces to

reset) and call for heat again. It will

repeat this sequence three times. If the

temperature still does not rise, it will

continue to call for heat. This normally

indicates the heating system is not

working correctly. You may wish to

consult your furnace manufacturer or

service person.

display. If this does not clear the

display, disconnect power for five

minutes.

2. Press the FILTER key, The display

will show SET FILTER TIME and the

number of hours remaining before

CHNG FLTR indicator will display.

If these checks fail to solve the

problem, the thermostat should be

replaced.

3. Press the FILTER key a second

time. The display will show SET

FILTER TIME and will show the

number of hours to filter change.

Temporary Program Override.

Any time your program is running and

you would like to override it for a

specific amount of time, press

BACK

FWD

until the temperature you

4. Press TIME

or TIME

want is displayed. The display will

indicate HOLD, and the number of

hours remaining in the hold period will

be indicated with the word HRS. To

to change the time to your require-

ments.

The display will indicate CHECK

STAT if one of the following occurs.

RUN

5. Press PROGRAM

to return

to the normal operating mode.

• One of the keys is stuck down or in.

Check the keys, make sure nothing is

pushing them in.

adjust the length of time for the

NOTE: If unsure what interval to use

between filter changes or cleaning,

FWD

override, press TIME

or TIME

BACK

. HOLD TILL will be displayed

Features

Programmable Vacation Time/

Temperature Operation.

as well as the HOLD period expiration

hours in advance of your expected

return to allow time to reach the

desired temperature. Your thermostat is

now programmed to hold the tempera-

ture you selected through your

FWD

time. Press the TIME

or TIME

BACK

The VACATION key allows you to

program the thermostat to hold a

constant temperature for 1 to 29 days.

At the end of the day and time you

select, the thermostat will return to

normal program operation.

keys until you reach the time

you would like it to resume the

FWD

program. The TIME

or TIME

BACK

keys adjust the time in 15

vacation for HEAT, COOL, or AUTO.

minute increments. This programmed

hold time has a 19 hour maximum.

Beyond 19 hours you may wish to use

the vacation hold feature (page 16). If

you need to, you can adjust the

temperature up or down.

After 20 seconds the display will

return to time/temperature alternation,

and will display VACA. Pressing

VACATION again will activate the

To program the number of days, press

VACATION. VACA HOLD TILL will

be displayed. The display will also

show DAYS (flashing) and the number

5 to indicate the factory default of a 5

vacation mode settings. Pressing

RUN

PROGRAM

cancels this

feature and begins running your

normal program.

Indefinite Program Hold.

If you want to operate the thermostat

to keep a set temperature without a

day period. To change the number of

FWD

vacation days, press TIME

Optional Remote Temperature

Sense.

BACK

TIME

. Press

program running, press PROGRAM

set the temperature you wish to

maintain while away. While still in the

vacation mode, set the time you want

HOLD

. The

keys can

Up to three remote sensors (F145-1328)

can be attached to this thermostat to

sense indoor temperature at locations

away from the thermostat. Each sensor

may be located as far as 200 feet away

from the thermostat. This is an

excellent feature if the thermostat is in

be use to raise or lower the tempera-

ture. The thermostat will hold the set

temperature until you return to the

program by pressing PROGRAM

the program to resume by pressing

TIME

SET

once. The current time will

FWD

display. Press only TIME

RUN

adjust the time in 15 minute incre-

ments. You may wish to select a few

a poor location for sensing temperature During programming, you can also

period.

or if you want to install the thermostat

in a separate room to prevent tamper-

ing. After installing and connecting the allows the system to maintain a

remote sensor(s) to the thermostat, the comfortable environment by giving

installer can enable each remote indoor higher priority to occupied locations.

assign each sensor different priorities

during different program periods. This

In the OCCU period, the office area

sensor will have more importance, so

the system will operate to keep the

temperature at the setpoint in that area.

In the UNOC period, the assembly

area sensor will have the higher

priority, so that area will be kept at the

setpoint temperature.

temperature sensor (A, B, and/or C).

At the same time, efficient system

operation is enhanced by giving lower

priority to unoccupied locations.

The temperature at each remote sensor

can be displayed by pressing the light

button twice within one second with

the thermostat in program run or hold

EXAMPLE: Your location has the

thermostat in the office area and a

To assign priority to a sensor, press

ADV.

VIEW

PROGRAM

and

mode. Temperatures at the outdoor and remote sensor in an assembly area. The

select the period, then press the

indoor remote sensors will be

displayed with subsequent presses of

the light button in the following order

(if connected): outdoor sensor, sensor

L, A, B, C.

office has people working only during

the day shift, but the assembly area has

a day shift and night shift. During the

day, you want the office area to be

more comfortable so you give the

sensor in that area (the thermostat) a

HI priority during the OCCU period.

VACATION key. On the display in

place of OCCU or UNOC the priority

of the sensor and the sensor identifica-

tion will appear. Press the VACATION

key to step through the sensors that are

installed and enabled L (local), A, B or

C. Only sensors that are installed and

enabled will be listed. When the sensor

you wish to change is displayed, press

the DAYLIGHT SAVING TIME key

to change the priority (AVG, HI or

When operating with remote sensor(s),

the thermostat will calculate an

average of the sensed temperatures in

all enabled sensor locations (A, B, C

and/or L), then display the average

temperature as the room temperature.

On the night shift, the office area is

vacant, but people are working in the

assembly area. You give the sensor in

that area a HI priority for the UNOC

Features

Large Lighted Liquid Crystal

Display (LCD).

Arm Chair Programming.

LO). AVG is the default setting. A

setting of HI gives a sensor more

importance and a setting of LO gives

less importance.

The thermostat uses 24 VAC power

supplied by the system for normal

operation. The electrolytic capacitor

allows you the added convenience of

programming the thermostat even

when not attached to the wallplate,

Attach the thermostat to the wallplate

and allow the capacitor to charge for at

least one hour. After the capacitor is

charged you will have approximately

one hour after removing the thermostat

from the wallplate to configure and

program the thermostat.

The large numbers and letters on your

LCD screen make it easy to see. In low

light conditions, press the button on

top of the thermostat and the display

will light up for three seconds. For ten

minutes after pressing the light button,

pressing any other button will light the

display for ten seconds.

Daylight Savings Time Button.

One button adjustment allows you to

change your thermostat clock between

Standard Time and Daylight Savings

Time. Simply push the DAYLIGHT

SAVINGS TIME key to advance the

time forward one hour in the Spring. In

the Fall press the DAYLIGHT

SAVINGS TIME key twice to fall

back an hour. If you push it three times

in a row (in less than 30 seconds) it

will return to the original time setting.

After clock adjustment, press PRO-

The thermostat display alternately

shows the current time and the current

temperature on the left side. The

display also shows the temperature you

have programmed or set on the right

side of your screen.

GRAM

to resume your normal

RUN

program.

Thermostat Startup After Total

Power Loss.

powered for at least 4 hours prior to

the power outage. When power is

restored, the thermostat will return to

the temperatures listed above.

On installation, or when power is

restored after a total power loss to the

thermostat, your thermostat will

automatically maintain a heating

temperature of 62°F (16°C) and a

cooling temperature of 85°F (29°C).

If this happens, set the clock and day

of the week (use PROGRAMMING

steps 1 through 6 from “Entering

Your Program” page 7), then select

If the 24 volts from the Heating/

Cooling transformer is lost, your

thermostat will lose its display in 2

minutes and may lose time in about 6

hours. This hold up time will be much

shorter if the control had not been

HEAT, EMER, COOL or AUTO

SYSTEM

using the

PROGRAM

key, and press

to resume

RUN

operation with your previously set

program.

INDEX

Factory Preprogrammed ------------ 14

Fahrenheit or Celsius Temperature

Display -------------------- 12

Schedule

Sample Program ------------------- 9

Personal Program ----------------- 10

Set

Clock -------------------------------- 7

Day ---------------------------------- 7

Program ----------------------------- 7

System and Thermostat Diagnosis 14

Temporary Program Override------ 15

Thermostat Startup After Total

Activate RUN PRG by Telephone 13

Adjustable Temperature Display -- 11

Air Filter Change-out Indicator---- 14

Arm Chair Programming ----------- 18

Automatic Changeover ------------- 13

Auxiliary Run Time ----------------- 13

Beeper ON---------------------------- 11

COMPONENTS ---------------------- 2

Thermostat Buttons --------------- 2

Display ------------------------------ 3

Compressor Run Time -------------- 13

Compressor Short-Cycle

FEATURES

Configuration Menu-------------- 11

Traditional ------------------------- 13

Heat Fast ------------------------------ 12

Indefinite Program Hold ------------ 16

INTRODUCTION ------------------- 1

Keypad Lockout --------------------- 13

Liquid Crystal Display -------------- 18

Operation

Power Loss --------------- 18

Vacation ------------------------------- 16

Manual ------------------------------ 7

Programmed ------------------------ 7

Outdoor Temperature Sense-------- 12

Program

Entering Your ---------------------- 7

Planning Your ---------------------- 7

Temporary Override-------------- 15

PROGRAMMING ------------------- 7

Remote Temperature Sense -------- 16

Protection ----------------- 13

CONFIGURATION ------------------ 4

User Menu Table ------------------ 5

Keypad Lockout Menu Table ---- 5

Cool Fast------------------------------ 12

Daylight Savings Time Button----- 17

Energy Management Recovery ---- 11

Fan Control, One Shot -------------- 12

Fan Control, Programmable-------- 14

37-6065B

0123