Emerson 1F95-391 User Manual

Thermostat With Humidity Control

Digital 7-Day Programmable

WHITE-RODGERS

TM

90 Series

P R E M I U M

1F95-391

Operating Instructions

Retain for Future Use

Easy, Menu-Driven Set-Up
and Programming

8

1

765432

9

10

11

12

Premium options
to customize the thermostat
to fit your application.

17

16

15

14

13

ORIENTATION

THE THERMOSTAT BUTTONS

See inside front cover for illustration
showing button locations.

(Blue arrow) Lowers temperature

1

setting (45

2

setting (99

3

green for 1st stage, yellow for 2
flashing yellow for 3rd stage, red for
emergency heat and flashing red for
malfunction condition in system.

4

lights the display.

5

thermostat programming or advance to
next program period in programming
mode.

Introduction

°F or 7°C minimum)

(Red arrow) Raises temperature

°F or 37°C maximum)

The multi-color indicator glows:

nd

stage,

This button (on top of the cover)

Used to initiate or review

Configuration Troubleshooting

Used with TIME

6

to set the clock.

BACK

Used to adjust the time backward,

7

or to select the previous menu item.

Used to adjust the time forward, or

8

to select the next menu item.

Used with TIME

9

to set the current day.

BACK

Used to advance operation to the

10

next program period or advance to the
next day in programming mode.

Used to manually override

11

programming to hold at a selected
temperature.

Used to view ambient humidity or

12

modify humidity setting.

Programming

Features

FWD

FWD

1

/TIME

/TIME

Selects fan operation (see The

13

Display page
used to program the fan to run
continuously during a program period.

Used to enter the service menu to

14

change or reset humidifier, air filter,
UV bulb, and service timers.

Sets the system mode (HEATing,

15

EMERgency (Heat Pump models
only), OFF, COOLing, or

AUTOmatic changeover).

Used to adjust the clock one hour

16

forward or back.

Used to start or return to program

17

operation.

3). This button is also

FAQs

Index

LARGE LIGHTED (LCD) DISPLAY

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.

Display system mode (OFF,

1

AUTO, HOLD, VA C A or HUMD).
During programming displays the time
period (MOR, DAY, EVE, NHT)
being programmed. In the configura­tion menu, the menu item name is

1 1

2 3 4

CHECK BATTERY

MON

FAN AU TOHRS

F

AM

shown, one word at a time (PRGM
MODE, EMR, COOL FAN DELA
OFF, etc.).

CHECK STAT appears when the

2

thermostat detects certain problems
within itself. CHECK SYSTEM
appears when the themostat detects
certain problems in the heating/cooling
or humidity system.

Indicates the length of time

3

remaining in a temporary hold
condition. Also indicates the length of
time remaining in VACATION mode.

CHECK BATTERY

MON WED THU FRI SAT SUNTUEWED THU FRI SAT SUNTUE

FAN AU TO

HRS

HEATHEAT

F

AM

8

Displays FAN ON when the fan is

4

operating continuously. Displays FAN
AUTO when the fan cycles with the

heating or cooling system.

Displays the setpoint temperature.

5

In HUMD mode, shows humidity
setpoint.

Alternately displays room

6

temperature and time of day. In
HUMD mode, shows actual humidity.

Shows the current day of the week.

7

When programming, shows the day(s)
being programmed.

The word HEAT or COOL will

8

appear above or below the setpoint if

1

is needed to display other

area
information.

67

5

2

INTRODUCTION

Thank you for purchasing your
new White-Rodgers 90 Series
thermostat with humidity control.
White-Rodgers has been producing
energy saving controls for over 60
years. We have been designing and
producing the White-Rodgers 90
Series family of electronic pro­grammable thermostats since 1982.
White-Rodgers 90 Series is the
third generation of the electronic
programmable family. We believe
you will find that the White­Rodgers 90 Series is the most user
friendly and technologically
advanced thermostat and humidity
control available today.

Introduction Configuration TroubleshootingProgramming

You will find information about
thermostat buttons (page 1) and
display beginning on page 2.

Introduction ..................................................... 3

Configuration ..............................................4-11

Manual Operation and Programming ......12-17

Features .................................................... 18-26

FAQs.......................................................... 27-32

Troubleshooting ....................................... 33-37

Index ............................................................... 38

Use the tabs at the bottom of the page to quickly
locate sections.

3

Features

FAQs Index

CONFIGURATION

The configuration menu allows you to set thermostat operating characteristics to your system or personal requirements.

FWD

To enter the menu, press TIME

and TIME

menu options. Press arrow keys to change options.

User Configuration Menu

Step Press Button(s) Displayed Press or to select: COMMENTS Ref
(Factory Default) Page

TIME

TIME

TIME

TIME

TIME

TIME

FWD

FWD

F

FWD

F

FWD

0 F

(0)

(ON)

W

D

RH

(0)

(OFF)

D

W

OPTM CMFT

(ON)

(OFF)

1

2 EMR

3

4 DRY

5

6 OPTM DHUM

BACK

once at the same time. Press TIME

5 LO to

Adjusts temperature display higher or lower.

5 HI

OFF ON

Selects EMR option ON or OFF or ON L.

ON L

20 LO to

Adjusts humidity display.

20 HI

LO or HI to OFF

To reduce or eliminate condensation during cold
weather. Use LO setting first, if condensation persists
use HI setting.

OFF

ON

Enables improved dehumidification in cooling mode
if humidity is above setting.

Available if OPTM CMFT is ON. Provides extra
dehumidification if humidity is above setting. May
reduce temperature setpoint by up to 3 degrees.

4

FWD

to advance through the

6

6

7

7

7

8

User Configuration Menu (Continued)

7 (F) C

8 SET FAN

9

10 HEAT FAST

TIME

TIME

TIM

TIME

FWD

FWD

(0)

P

E

E

D

W

F

E

FWD

B

)

N

(O

0 HRS (OFF) to

6 HRS

(ON)

11 COOL FAST

TIME

FWD

(OFF)

TIME

FWD

REMT SEN A

12

(OFF)

TIME

FWD

REMT SEN B

13

(OFF)

TIME

FWD

REMT SEN C

14

(OFF)

15 STAT SEN L

TIME

FWD

(ON)

Configuration

FF

O

OFF

OFF

ON

ON

ON

OFF

Adjusts temperature display between

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

F or C

8

8

one shot option.

.

FF

or O

Turns beeper O

ON allows second stage to energize if setpoint is raised
3 or more degrees. OFF (economy) minimizes second

N

8

8

stage operation on setpoint changes.

ON allows second stage to energize if setpoint is
lowered 3 or more degrees. OFF (economy) minimizes

9

second stage operation on setpoint changes.

Enables Remote Sensor A (connected to SA).

Enables Remote Sensor B (connected to SA).

Enables Remote Sensor C (connected to SA).

OFF Disables Thermostat Sensor. (Only available if
remote sensor A, B, or C is connected).

9&10

9&10

9&10

9&10

5

User Configuration Menu (Continued)

TIME

FWD

TEMP OUT

(OFF)

16

ON

Enables outdoor temperature sensor. Requires optional
F145-1378 outdoor sensor.

10

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 tempera­ture to a higher or lower value. The
thermostat is calibrated at the factory to
display a very accurate room 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

° and you want it to display 73° the

display can be adjusted to read 73

°. To

adjust, refer to the CONFIGURATION
section (page 4, step 1).

Selectable Energy Management
Recovery (EMR).

(User menu, Step 2) EMR causes the
thermostat to start operating the system
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 tempera­ture and the next programmed
temperature. In cooling and heat pump
applications, the thermostat uses 15
minutes per

°F. For heating applica-

6

tions in large buildings where extra
time to reach the set temperature may
be desired, EMR Long may be
selected. When EMR ON L is selected
in the user menu (page 4, item 2) the

thermostat uses 15 minutes per °F.

EXAMPLE: If the temperature in the
room is 65
programmed for 70

°F and the thermostat is

°F at 7 AM, the

thermostat will start approximately 40
minutes early. The difference between the
room temperature (65

(70

°F) is 5° and 5° X 8 minutes per °F =

°F) and the setpoint

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.
To select or deselect this feature, refer to
the CONFIGURATION section (page 4,
step 2).

Adjustable Humidity Display (RH)

(User Menu step 3) The room
humidity display can be adjusted to
read higher or lower by following the
configuration menu and adjusting the
humidity to a higher or lower value.
The thermostat is calibrated at the
factory to display a very accurate
room humidity, but due to various

Configuration

conditions and/or personal preference,
you may wish to adjust the thermostat
display higher or lower (up to +/­20%). For example, if the thermostat
displays room humidity of 40% but
you want it to display 43% you can
adjust it. To adjust, refer to the
CONFIGURATION section

(page 4,

step 3).

Programmable Automatic
Humidity Reduction (DRY)

(User Menu step 4)

This feature automatically lowers
humidity setting when the outside
temperature drops. This is to prevent
the interior windows/walls from
reaching the dew point where water
condenses on surfaces. To achieve
automatic humidity reduction, the
thermostat lowers the humidity when
furnace cycles are long. When the
furnace runs shorter cycles, it increases

7

humidity. For suggested settings see
table below.

Programmable Dehumidification
Optimal Comfort Mode (OPTM
CMFT)

(User Menu step 5)When turned on
this feature automatically reduces
indoor humidity during calls for
cooling if humidity is 2% above
setting. Humidity is set by pressing the
Humidity button when in the appropri­ate mode, in this case Cooling, and
pressing the
set desired humidity (range 40 to 95)
level followed by pressing Run
Program. This dehumidification
feature uses less energy by maintaining
temperature and dehumidifying only
when a call for Cooling is required.

or buttons to

Programmable Dehumidification
Optimal Dehumidification Mode
(OPTM DHUM)

(User Menu step 6)When turned on
this feature automatically reduces
indoor humidity if humidity is 2%
above setting. Humidity is set by
pressing the HUMIDITY button
when in the appropriate mode, in this
case Cooling, and pressing the

or buttons to set desired
humidity level followed by pressing

PROGRAM. This dehumidifi-

RUN

cation feature may use more energy
by making dehumidification a priority
initiating a call for cooling if humidity
is 2% above desired setting. This
feature may also over-cool the
condition space by up to 3 degrees to
achieve the desired humidity level.

Fahrenheit or Celsius
Temperature Display.

(User menu, Step 7) 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.

Single Period Fan Control.

(User menu, Step 8) This feature
allows you to have the fan run 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 4, step 8) 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. T o return the

8

fan to normal operation before the end of
the time period, press the F AN button.

Beeper on.

(User menu, Step 9) 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 using

or to provide silent key

operation.

Heat Fast.

(User menu, Step 10) This feature,
when set to ON, will bring the second
stage of heating on any time you
manually raise the temperature three or
more degrees above room temperature.
If HEA T 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.

Cool Fast.

(User menu, Step 11) This feature,
when set to ON, will bring the second
stage of cooling on any time you
manually lower the temperature three
or more degrees below room tempera­ture. 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.

Optional Remote Temperature
Sense.

(User menu, Step 12,13,14,15) 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 300 feet away from
the thermostat. This is an excellent
feature if the thermostat is in a poor
location for sensing temperature or if

Configuration

you want to install the thermostat in a
separate room to prevent tampering.
After installing and connecting the
remote sensor(s) to the thermostat, the
installer can enable each remote indoor
temperature sensor (A, B, and/or C).
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.
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
mode. Temperatures at the outdoor and
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. You can also assign each
sensor different priorities during

9

different program periods. This allows
the system to maintain a comfortable
environment by giving higher priority
to occupied locations. At the same
time, giving lower priority to unoccu­pied locations enhances efficient
system operation. EXAMPLE: Your
home has bedrooms on the upper level
and a guest bedroom on the main
level, along with the living room,
kitchen, etc. The thermostat (sensor L)
is located in the hall on the main level.
Remote sensors are located on the
upper level (sensor A) and the guest
bedroom (sensor B). The lower level
would be occupied in the DAY
and EVE periods. The upper level
would be occupied in the NHT and
MOR periods. With no guest in the
guest bedroom, the sensors could be
programmed as follows:

SENSOR

MOR
DAY
EVE
NHT

L

AVG

HI
HI

AVG

A

HI
AVG
AVG

HI

B
LO
LO
LO
LO

In the MOR and NHT periods, the
sensor on the upper level (sensor A)
has more priority than the lower level
(sensor L), so the system will operate
to keep the temperature at the set point
in the upper level. In the DAY and
EVE periods, the lower level has the
higher priority, so the system will
operate to keep the temperature at the
set point on that level. The sensor in
the guest bedroom has the lower
priority of the sensors. If there is a
guest, the sensor in that room (sensor
B) should be changed to AV G or HI
for periods when that room will be
used. To assign priority to a sensor,

press PROGRAM

VIEW

to advance

the time period you wish to modify,
then press the HUMIDITY button. On
the display in place of period of day
(MOR, DAY, EVE, NHT) the priority
of the sensor and the sensor identifica­tion will appear. Press the HUMID-
ITY button 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 LO). AVG is the
default setting. A setting of HI gives a

sensor more importance and a setting

of LO gives less importance.

Outdoor Temperature Sense.

(User menu, Step 16) A remote sensor
(F145-1378) may be installed for
outdoor temperature measurement.

10

The sensor must be properly con­nected and enabled using the User
menu. The 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.

KEYPAD LOCKOUT MENU

The keypad lockout menu allows you
to partially or totally lock out the
keypad depending on your system or
personal requirements. To enter the
keypad lockout menu you must first
enter the User Menu, while in the User
Menu press TIME

the same time for at least one

BACK

second. Press TIME

FWD

FWD

and TIME

to

advance through the menu options.

Keypad Lockout Menu (Must be in User Menu to enter Keypad Lock Menu- press and hold Time and

BACK

Time for one second or more).

Step Press Button(s) Displayed Press or to select: COMMENTS Ref
(Factory Default) Page

1

FWD

TIME

2

PART LOCK

(OFF)

LOCK
(OFF)

FWD

TIME

ON

ON

ON Disables all keypad functions except Temp Up and
Down. User may temporary override within
lowest programmed setpoint in cooling and highest
programmed setpoint in heating.

ON Disables all keypad functions.

FWD

10 & 11

10 & 11

Press arrow keys to change options.
Choose one of the two keypad locks to
prevent unauthorized tampering with
the program. Two 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

or

buttons to operate for temporary
temperature overrides. It also limits
the temperature to the maximum

Configuration

heating and minimum cooling
temperatures used in your program.
This is especially 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 “Tempo-
rary Program Override” (page 18).

11

PROGRAMMING

MANUAL OPERATION

(Bypassing the Program)

Your White-Rodgers 90 Series
thermostat can be used to control
temperature manually (without
programming). For manual operation,
press

COOL, then press PROGRAM

HOLD

temperature as desired.

PROGRAMMED OPERATION
Planning Your Program

The sample schedule (pages 14 & 15)
shows the factory-installed programs
for heating and cooling. The heating
and cooling programs are separate,
and must be programmed individually.
To use the factory program, set the
clock and press PROGRAM

to select HEAT or

SYSTEM

. Use or to set the

RUN

with the thermostat set to Heat, Cool,
or Auto. Fill out the blank schedules
(pages 16 & 17) with the time and
temperatures you want in your
program. Fill in every space for your
program.The same temperature can be
repeated more than once if you do not
want the temperature to change over
several time periods. This is useful for
homes or businesses that are occupied
all day and only want a setback
temperature at night.

Entering Your Program
To Set the Clock:

1. Press PROGRAM

2. Press SET

TIME

show the hour. Use TIME

BACK

TIME

to set to the current hour

RUN

.

. The display will

FWD

or

and AM/PM designation.

12

3. Press SET
will show minutes. Use TIME
or TIME

TIME

again. The display

BACK

to set to the current

FWD

minutes.

4. Press PROGRAM

RUN

.

To Set the Day:

5. Press SET

DAY

. The display will

indicate a day of the week. Use TIME

FWD

or TIME

BACK

to set to the

current day of the week.

6. Press PROGRAM

RUN

.

To Set the Program:

SYSTEM

7. Press the

button to select

HEAT (for heating program) or COOL
(for cooling program).

8. Press PROGRAM

VIEW

one time.

The display will show MOR, the
settings for time and temperature and
MON.