White Rodgers 90 SERIES 1F95-391 User manual

Thermostat With Humidity Control
Digital 7-Day Programmable
90 SeriesTM
P R E M I U M
1F95-391
Operating Instructions
Retain for Future Use
WHITE-RODGERS

Premium options
to customize the thermostat
to fit your application.
Easy, Menu-Driven Set-Up
and Programming 765432
12
11
10
9
8
17 16 15 14 13
1

1
Introduction Configuration Troubleshooting
Programming Features FAQs Index
THE THERMOSTAT BUTTONS
See inside front cover for illustration
showing button locations.
1
(Blue arrow) Lowers temperature
setting (45°F or 7°C minimum)
2
(Red arrow) Raises temperature
setting (99°F or 37°C maximum)
3
The multi-color indicator glows:
green for 1st stage, yellow for 2nd stage,
flashing yellow for 3rd stage, red for
emergency heat and flashing red for
malfunction condition in system.
4
This button (on top of the cover)
lights the display.
5
Used to initiate or review
thermostat programming or advance to
next program period in programming
mode.
6Used with TIME
FWD
/TIME
BACK
to set the clock.
7Used to adjust the time backward,
or to select the previous menu item.
8Used to adjust the time forward, or
to select the next menu item.
9Used with TIME
FWD
/TIME
BACK
to set the current day.
10
Used to advance operation to the
next program period or advance to the
next day in programming mode.
11
Used to manually override
programming to hold at a selected
temperature.
12
Used to view ambient humidity or
modify humidity setting.
ORIENTATION
13
Selects fan operation (see The
Display page 3). This button is also
used to program the fan to run
continuously during a program period.
14
Used to enter the service menu to
change or reset humidifier, air filter,
UV bulb, and service timers.
15
Sets the system mode (HEATing,
EMERgency (Heat Pump models
only), OFF, COOLing, or
AUTOmatic changeover).
16
Used to adjust the clock one hour
forward or back.
17
Used to start or return to program
operation.

2
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.
1Display system mode (OFF,
AUTO, HOLD, VAC A or HUMD).
During programming displays the time
period (MOR, DAY, EVE, NHT)
being programmed. In the configura-
tion menu, the menu item name is
shown, one word at a time (PRGM
MODE, EMR, COOL FAN DELA
OFF, etc.).
2CHECK STAT appears when the
thermostat detects certain problems
within itself. CHECK SYSTEM
appears when the themostat detects
certain problems in the heating/cooling
or humidity system.
3Indicates the length of time
remaining in a temporary hold
condition. Also indicates the length of
time remaining in VACATION mode.
4Displays FAN ON when the fan is
operating continuously. Displays FAN
AUTO when the fan cycles with the
heating or cooling system.
5Displays the setpoint temperature.
In HUMD mode, shows humidity
setpoint.
6Alternately displays room
temperature and time of day. In
HUMD mode, shows actual humidity.
7Shows the current day of the week.
When programming, shows the day(s)
being programmed.
8The word HEAT or COOL will
appear above or below the setpoint if
area 1is needed to display other
information.
FAN AUTOHRS
CHECK BATTERY
F
AM
MON
FAN AUTO
HEATHEAT
HRS
CHECK BATTERY
F
AM
MON WED THU FRI SAT SUNTUEWED THU FRI SAT SUNTUE
1 1
2 3 4
5
8
67

3
INTRODUCTION
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.
Introduction Configuration TroubleshootingProgramming Features FAQs Index
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 pro-
grammable thermostats since 1982.
White-Rodgers 90 Series is the
third generation of the electronic
programmable family. We believe
you will find that the White-
Rodgers 90 Series is the most user
friendly and technologically
advanced thermostat and humidity
control available today.
You will find information about
thermostat buttons (page 1) and
display beginning on page 2.

4
CONFIGURATION
The configuration menu allows you to set thermostat operating characteristics to your system or personal requirements.
To enter the menu, press TIME
FWD
and TIME
BACK
once at the same time. Press TIME
FWD
to advance through the
menu options. Press arrow keys to change options.
1
Step Press Button(s) Displayed Press or to select: COMMENTS Ref
(Factory Default) Page
0 F
(0)
5 LO to
5 HI
Adjusts temperature display higher or lower.
2EMR
(ON)
OFF ON
ON L
Selects EMR option ON or OFF or ON L.
TIME
FWD
TIME
FWD
3RH
(0)
20 LO to
20 HI
Adjusts humidity display.
TIME
FWD
4DRY
(OFF)
LO or HI to OFF
To reduce or eliminate condensation during cold
weather. Use LO setting first, if condensation persists
use HI setting.
TIME
FWD
5OPTM CMFT
(ON)
OFF
Enables improved dehumidification in cooling mode
if humidity is above setting.
TIME
FWD
6OPTM DHUM
(OFF)
ON
Available if OPTM CMFT is ON. Provides extra
dehumidification if humidity is above setting. May
reduce temperature setpoint by up to 3 degrees.
TIME
FWD
User Configuration Menu
6
6
7
7
7
8

5
User Configuration Menu (Continued)
Configuration
7(F) C
Adjusts temperature display between F or C
TIME
FWD
8SET FAN
(0)
0 HRS(OFF) to
6 HRS
Set Fan (one shot) option. Set the duration of the
one shot option.
TIME
FWD
9BEEP
(ON)
OFF
Turns beeper ONor OFF.
TIME
FWD
10 HEAT FAST
(ON)
OFF
ON allows second stage to energize if setpoint is raised
3 or more degrees. OFF (economy) minimizes second
stage operation on setpoint changes.
TIME
FWD
11 COOL FAST
(OFF)
OFF
ON allows second stage to energize if setpoint is
lowered 3 or more degrees. OFF (economy) minimizes
second stage operation on setpoint changes.
TIME
FWD
12
Enables Remote Sensor A (connected to SA).
TIME
FWD
REMT SEN A
(OFF)
ON
13
Enables Remote Sensor B (connected to SA).
TIME
FWD
REMT SEN B
(OFF)
ON
14
Enables Remote Sensor C (connected to SA).
TIME
FWD
REMT SEN C
(OFF)
ON
15 STAT SEN L
(ON)
OFF
OFF Disables Thermostat Sensor. (Only available if
remote sensor A, B, or C is connected).
TIME
FWD
8
8
8
9&10
9
9&10
9&10
9&10
8

6
User Configuration Menu (Continued)
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 tempera-
ture, 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 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
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°F and the thermostat is
programmed for 70°F at 7 AM, the
thermostat will start approximately 40
minutes early. The difference between the
room temperature (65°F) and the setpoint
(70°F) is 5°and 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
16
Enables outdoor temperature sensor. Requires optional
F145-1378 outdoor sensor.
TIME
FWD
TEMP OUT
(OFF)
ON 10

7
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
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
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 appropri-
ate mode, in this case Cooling, and
pressing the or buttons to
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.
Configuration

8
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
RUN
PROGRAM. This dehumidifi-
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. To return the
fan to normal operation before the end of
the time period, press the FAN 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 HEAT 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.