White Rodgers | 1F90W-51 | Specifications | White Rodgers 1F90W-51 Specifications

1F82-51
Programmable Electronic Digital
Heat Pump Thermostat
INSTALLATION AND
OPERATION INSTRUCTIONS
WHITE-RODGERS
Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
Your new White-Rodgers 5-Day/2-Day Digital Heat Pump Thermostat uses the technology of a solid-state microcomputer to
provide precise time/temperature control. This thermostat offers
you the flexibility to design heating and cooling programs that fit
your needs.
Features:
• Separate 5-day (weekday) and 2-day (weekend) programming
with four separate time/temperature periods per program
• Simultaneous heat and cool program storage
• Preprogrammed temperature control
• LCD continuously displays set point, and alternately displays time and room temperature
• Temperature override until next program period
• Manual program override (HOLD temperature)
• °F/°C convertibility
• Temperature range 45° to 90°F
• Eight terminals for single or two-transformer systems
• O/B terminal for heat pump systems
• Armchair Programming Capability
PRECAUTIONS
This thermostat is intended for use with a 24-volt system; do not
use this thermostat with a millivolt or line voltage system. If in
doubt about whether your wiring is millivolt, line, or low voltage,
have it inspected by a qualified heating and air conditioning
contractor or electrician.
! CAUTION
To prevent electrical shock and/or equipment damage
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.
Do not exceed the specification ratings.
All wiring must conform to local and national electrical codes and
ordinances.
This control is a precision instrument, and should be handled
carefully. Rough handling or distorting components could cause
the control to malfunction.
! WARNING
Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could cause
shock or fire hazard.
Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will damage
thermostat and could cause personal injury and/or
property damage.
SPECIFICATIONS
ELECTRICAL DATA
Electrical Rating:
20 to 30 VAC 50/60 Hz. or D.C.
0.05 to 1.5 Amps (Load per terminal)
1.5 Amps Maximum Total Load (All terminals combined)
THERMAL DATA
Setpoint Temperature Range:
45°F to 90°F (7°C to 32°C)
Operating Ambient Temperature Range:
32°F to 105°F
Operating Humidity Range:
0 to 90% RH (non-condensing)
Shipping Temperature Range:
-40°F to 150°F
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
APPLICATIONS
For use with:
• Heat pump systems with up to two stages heat, one
stage cool
DO NOT USE WITH:
• Millivolt systems
• Systems exceeding 30 VAC and 1.5 amps
• 3-wire zoned hydronic heating systems
PART NO. 37-5650A
Printed in U.S.A.
9618
INSTALLATION
REMOVE OLD THERMOSTAT
1. Shut off electricity at the main fuse box until installation is
complete. Ensure that electrical power is disconnected.
2. Remove the front cover of the old thermostat. With wires
still attached, remove wall plate from the wall. If the old
thermostat has a wall mounting plate, remove the thermostat
and the wall mounting plate as an assembly.
3. Identify each wire attached to the old thermostat using the
labels enclosed with the new thermostat.
4. Disconnect the wires from old thermostat one at a time. DO
NOT LET WIRES FALL BACK INTO THE WALL.
5. Install new thermostat using the following procedures.
W904
CUT FOR
NON-ELECTRIC
AUX.
BATTERY CUTOUT FOR
ARMCHAIR PROGRAMMING
O
B
W903
CUT TO DEFEAT EMR
ATTACH THERMOSTAT BASE TO WALL
1. Remove the packing material from the thermostat.
2. If necessary, cut the non-electric heat jumper (see FAN
OPTION JUMPER) and/or the EMR jumper (see ENERGY
MANAGEMENT RECOVERY). Check the setting of the O/
B switch (see O/B TERMINAL SWITCH SELECTION).
3. If you want to program the thermostat before mounting the
thermostat on the wall, see ARMCHAIR PROGRAMMING.
4. Gently pull the thermostat cover straight off the base. Forcing
or prying on the thermostat will cause damage to the unit.
5. Pull wires through hole in base and place base over hole in
wall. Mark mounting hole locations on wall using base as a
template.
6. Move base out of the way. Drill mounting holes.
7. Fasten base loosely to wall, as shown in fig. 2, using two
mounting screws. Place a level against bottom of base,
adjust until level, and then tighten screws. (Leveling is for
appearance only and will not affect thermostat operation.) If
you are using existing mounting holes, or if holes drilled are
too large and do not allow you to tighten base snugly, use
plastic screw anchors to secure subbase.
8. Check that the SYSTEM switch is in the OFF position.
Connect wires beneath terminal screws on base using
appropriate wiring schematic (see figs. 3 through 5).
9. Push excess wire into wall and plug hole with a fire-resistant
material (such as fiberglass insulation) to prevent drafts from
affecting thermostat operation.
Figure 1. Back of thermostat base
Reset Button
Screw anchors
C
L
E
G
W2
R
SET TI
ME
VIEW
PRGM
RUN
Y
O/B
PRGM
HOLD
TEMP
FAN ON
AUTO
OFF
HEAT
COOL
EMER
Mounting
holes
Figure 2. Thermostat base
will start the heating system before the next programmed
period so that the desired temperature is reached at or near the
beginning of the period (the thermostat calculates 15 minutes
for every 1°F temperature change).
Read the following information before clipping the non-electric
heat jumper. If you are unsure of your application, contact a
qualified serviceperson.
For example, assume that the thermostat is programmed to
provide an overnight heating temperature of 66°F, and during
the next program period, beginning at 6:00 AM, the programmed
temperature is 70°F. With EMR activated, the thermostat will
automatically start the heating system at 5:00 AM, so that the
programmed temperature of 70°F is reached by about 6:00 AM.
If your emergency or auxiliary system will energize the blower,
then jumper, W904, on the back of the thermostat base must be
cut (see fig. 1).
If the overnight room temperature drops only to 68F°, the
thermostat will start the system at 5:30 to reach the programmed
temperature of 70°F at 6:00.
If your emergency or auxiliary heat system requires that the
thermostat energize the fan circuit, do not cut jumper W904.
The thermostat is shipped with the EMR feature active, which
means that the thermostat will start the heating system before
the beginning of the next program period. This feature provides
better efficiency by allowing gradual temperature changes using
only the first stage of heat.
FAN OPTION JUMPER
ENERGY MANAGEMENT RECOVERY
(EMR)
The EMR feature allows, the thermostat's microcomputer to
automatically calculate the time it will take to change the room
temperature to the next program setting. Then the thermostat
2
To deactivate the EMR function, clip wire W903 on the back
of the thermostat (see fig. 1). The thermostat will then wait until
the programmed time to start the system for a temperature
change. This may cause the more costly electric second stage
of heating to be used.
NOTE
NOTE
The following wiring diagrams show typical terminal identification and wiring. For proper installation, refer to the original
manufacturer's instructions.
Relay contacts shown are thermostatically operated.
FAN ON
FAN
AUTO
Emer
FAN
AUTO
Heat
or Cool
O/B
Y
MALF
EMERGENCY
THERMOSTAT
G
Changeover
Relay*
Thermostat
Control
Circuit
W2
E
Fan
Relay
L
C
R
SYSTEM
SYSTEM
MONITOR
SWITCH
Emergency
Relay
Aux/Emer
Relay
(Stage 2)
Compressor
Contactor
Hot
24 VAC
120 VAC
Neutral
TRANSFORMER
* Changeover Relay is energized in COOL when O/B switch is in the “O” position
Changeover Relay is energized in HEAT when O/B switch is in the “B” position
Figure 3. Typical wiring diagram for single transformer systems
NOTE
FAN ON
If safety circuits are in
only one of the systems,
remove the transformer
of the system with NO
safety circuits.
FAN
AUTO
Emer
FAN
AUTO
Heat
or Cool
O/B
Y
MALF
EMERGENCY
Thermostat
Control
Circuit
THERMOSTAT
G
W2
E
L
C
CUT AND
TAPE OFF!
Changeover
Relay*
HOT
24 VAC
120 VAC
Fan
Relay
SYSTEM
Limit or
Safety
Switches
Aux/Emer
Relay
(Stage 2)
Compressor
Contactor
NEUTRAL
SYSTEM
MONITOR
SWITCH
Emergency
Relay
R
Hot
24 VAC
120 VAC
Neutral
TWO COMMONS MUST
BE JUMPERED TOGETHER!
* Changeover Relay is energized in COOL when O/B switch is in the “O” position
Changeover Relay is energized in HEAT when O/B switch is in the “B” position
TRANSFORMER
Figure 4. Typical wiring diagram for two transformer systems with NO safety circuits
NOTE
FAN ON
O/B
Y
MALF
Thermostat
Control
Circuit
EMERGENCY
FAN
AUTO
Emer
FAN
AUTO
Heat
or Cool
Polarity must be observed. If the HOT side of
the second transformer is jumpered to the
COMMON side of the first transformer a short
will be made. Damage to equipment will occur
when power is restored.
THERMOSTAT
G
W2
E
L
C
R
SYSTEM
Changeover
Relay*
Compressor
Contactor
Fan
Relay
Emergency
Relay
Limit or
Safety
Switches
SYSTEM
MONITOR
SWITCH
24 VAC
120 VAC
NEUTRAL
24 VAC
ACCESSORY
RELAY N.O.
CONTACT
Aux/Emer
Relay
(Stage 2)
Auxiliary
Heating
Transformer
COMMON
Limit or
Safety
Switches
TWO COMMONS MUST
BE JUMPERED TOGETHER!
* Changeover Relay is energized in COOL when O/B switch is in the “O” position
Changeover Relay is energized in HEAT when O/B switch is in the “B” position
Limit or
Safety
HOT
Switches
COMMON
NOTE
The accessory relay scheme
is required when safety
circuits exist in both systems.
Limit or
Safety
Switches
24 VAC
HOT
120 VAC
NEUTRAL
Heat Pump Transformer
Figure 5. Typical wiring diagram for two transformer systems with safety circuits in BOTH systems
3
Heating System
O/B TERMINAL SWITCH SELECTION
The O/B switch on this thermostat is factory set to the “O”
position. This will accommodate the majority of heat pump
applications, which require the changeover relay to be energized in COOL. If the thermostat you are replacing or the heat
pump being installed with this thermostat requires a “B” terminal, to energize the changeover relay in HEAT, the O/B switch
must be moved to the “B” position.
ARMCHAIR PROGRAMMING
Armchair Programming is a unique feature that allows your
thermostat to be programmed before being mounted on the wall.
If you do not want to Armchair Program, the thermostat can be
programmed after being mounted on the wall and system power
turned on.
If you wish to Armchair Program your thermostat, temporarily
hold a new 9-volt battery against the wires in the battery cutout
on the back of the thermostat base for approximately 45
seconds. This will provide a charge that will last approximately
30 to 45 minutes to allow the thermostat to be programmed.
After programming, the thermostat must be mounted on the
wall, wires connected and system power turned on.
NOTE
To have sufficient time to complete the installation without
losing the programming, hold the 9-volt battery to the terminals
on the back of the base for 30 to 45 seconds again after
programming the thermostat. The battery must be removed
before mounting the thermostat on the wall.
1. Move SYSTEM switch to HEAT position
2. Press
to adjust thermostat setting to 90° and hold for five
seconds. Both stages of the heating system should begin to
operate. However, if the word HEAT is flashing, the compressor lockout feature is operating (see Lockout Bypass
Option to temporarily override the compressor lockout feature during testing).
3. Press
to adjust temperature setting below room tempera-
ture. The auxiliary heating system will stop immediately and
the first stage will stop within three to four minutes.
Cooling System
! CAUTION
To prevent compressor and/or property damage, if the
outdoor temperature is below 50°F, DO NOT operate
the cooling system.
1. Move SYSTEM switch to COOL position.
2. Press
to adjust thermostat setting below room tempera-
ture. The blower should come on immediately on high speed,
followed by cold air circulation. However, if the fan is running
but the compressor is not running and the word COOL is
flashing, the compressor lockout feature is operating (see
Lockout Bypass Option to temporarily override the compressor lockout feature during testing).
3. Press
to adjust temperature setting above room tem-
perature. The cooling system should stop operating
ADJUSTABLE ANTICIPATION
The first stage has anticipation that can be set to 2.5 or 4 cycles
per hour for heating or cooling. The second stage heat has a
fixed anticipation. To change the first stage anticipation in the
HEAT or COOL mode, press SET TIME and VIEW PRGM
buttons at the same time until the desired setting is displayed
(S for slow (factory setting) or F for fast).
CHECK THERMOSTAT OPERATION
If at any time during testing, your system does not operate
properly, contact a qualified serviceperson.
LOCKOUT BYPASS OPTION
FOR QUALIFIED SERVICE TECHNICIANS’ USE
ONLY. OPERATORS SHOULD NOT USE THIS FEATURE DUE TO POSSIBILITY OF EQUIPMENT OR
PROPERTY DAMAGE, OR PERSONAL INJURY.
COMPRESSOR SHORT TERM
CYCLE PROTECTION
Fan Operation
1.
2.
3.
4.
Turn on power to the system.
Move SYSTEM switch to OFF position.
Move FAN switch to ON. The blower should begin to operate.
Move FAN switch to AUTO position. The blower should stop
within a short period of time.
This thermostat has a built-in short term (5-minute)
time delay. During this 5-minute period, the thermostat will lock out the compressor to allow head pressure to stabilize. If you want to override this feature
while testing thermostat operation, simply press
and
buttons at the same time.
DO NOT USE THE LOCKOUT BYPASS OPTION
UNLESS THE COMPRESSOR OIL HEATERS HAVE
BEEN OPERATIONAL FOR 6 HOURS AND THE
SYSTEM HAS NOT BEEN OPERATIONAL FOR AT
LEAST 5 MINUTES.
4
OPERATION
Before you begin programming your thermostat, you should be
familiar with its features and with the display and the location and
operation of the thermostat buttons. Your thermostat consists of
two parts: the thermostat cover and the base. To remove the
cover, gently pull it straight out from the base. To replace the
cover, line up the cover with the base and press gently until the
cover snaps onto the base.
EMER
MALF
AUX
2
1
WHITE-RODGERS
THE THERMOSTAT BASE
SET TIME VIEW PRGM RUN PRGM HOLD TEMP
Other than
and
FAN ON
OFF
AUTO
, the following buttons and switches are
HEAT
COOL
EMER
located behind the door on the bottom of the thermostat cover
(see fig. 6). Pull the door down to open it.
The Thermostat Buttons and Switches
3
1 (Red arrow) Raises temperature setting.
9
2 (Blue arrow) Lowers temperature setting.
MO TU WE TH FR
5
6
7
10
9
HEAT
SA SU
EMERGENCY
4 VIEW PRGM (program) button.
5 RUN PRGM (program) button.
8
AM
11
3 SET TIME button.
4
12
13
HOLD
COOL
14
10
11
Figure 6. Thermostat display, buttons, and switches
6 HOLD TEMPerature button.
7 FAN switch (ON, AUTO).
8 SYSTEM switch (COOL, OFF, HEAT, EMER).
The Display
9 Indicates day of the week.
10 HEAT is displayed when the SYSTEM switch is in the HEAT
position. COOL is displayed when the SYSTEM switch is in
the COOL position. COOL or HEAT is displayed (flashing)
when the compressor is in lockout mode.
11 Alternately displays current time and temperature.
12 EMERGENCY is displayed when the system switch is in the
EMER position.
13 Displays currently programmed set temperature (this is
blank when SYSTEM switch is in the OFF position).
14 The word HOLD is displayed when the thermostat is in the
HOLD mode.
OPERATING FEATURES
Now that you are familiar with the thermostat buttons and
display, read the following information to learn about the many
features of the thermostat.
• SIMULTANEOUS HEATING/COOLING PROGRAM
STORAGE — When programming, you can enter both your
heating and cooling programs at the same time. There is no
need to reprogram the thermostat at the beginning of each
season.
• TEMPERATURE OVERRIDE — Press
or
until the
display shows the temperature you want. The thermostat
will override current programming and keep the room
temperature at the selected temperature until the next
program period begins. Then the thermostat will automatically revert to the program.
• HOLD TEMPERATURE — The thermostat can hold any
temperature within its range for an indefinite period, without
reverting to the programmed temperature. Press HOLD
TEMP button. HOLD will be displayed. Then choose the
desired hold temperature by pressing
or
. The
thermostat will hold the room temperature at the selected
setting until you press RUN PRGM button to start program
operation again.
• °F/°C CONVERTIBILITY — Press SET TIME and HOLD
TEMP buttons until the temperature display is in Celsius
(°C). To display Fahrenheit (°F), repeat the process.
• TEMPERATURE DISPLAY ADJUSTMENT — Your new
thermostat has been accurately set in our factory. However,
if you wish, you may adjust your new thermostat temperature display to match your old thermostat. This can be
accomplished (within a ±4°F range) as follows:
1. Press VIEW PRGM and HOLD TEMP buttons at the
same time.
2. Press
or
to adjust the displayed temperature to
your desired setting.
3. Press RUN PRGM to resume normal program operation.
• RESET BUTTON - (see fig. 2) resets the thermostat
program to the factory setting. This button can be used if
you do not like the program you have entered or if you wish
to start over in the programming procedure. The reset
button can also be used to reset the program if the
thermostat has been subjected to a voltage spike and the
program has become scrambled or frozen.
5
PROGRAMMING YOUR THERMOSTAT
Entering Your Program
Now you are ready to program your thermostat. This section will
help you plan your thermostat’s program to meet your needs.
For maximum comfort and efficiency, keep the following guidelines in mind when planning your program.
Follow these steps to enter the heating and cooling programs
you have selected.
• When heating (cooling) your building, program the temperatures to be cooler (warmer) when the building is vacant
or during periods of low activity.
• During early morning hours, the need for cooling is usually
minimal.
Look at the factory preprogrammed times and temperatures
shown below. If this program will suit your needs, simply press the
RUN PRGM button to begin running the factory preset program.
1. Press SET TIME button once. The display will show the hour
only.
FACTORY PREPROGRAMMING
Cooling Program for
Heating Program for
ALL Days of the Week:
ALL days of the Week:
PERIOD
1st
2nd
3rd
4th
TIME
6:00 AM
8:00 AM
5:00 PM
10:00 PM
TEMP
68°F
68°F
68°F
64°F
PERIOD
1st
2nd
3rd
4th
TIME
6:00 AM
8:00 AM
5:00 PM
10:00 PM
TEMP
78°F
82°F
78°F
78°F
If you want to change the preprogrammed times and temperatures, follow these steps.
Determine the time periods and heating and cooling temperatures for your weekday and weekend programs. You must
program four periods for both the weekday and weekend program. However, you may use the same heating and cooling
temperatures for consecutive time periods. You can choose
start times, heating temperatures, and cooling temperatures
independently for both weekday and weekend programs (for
example, you may select 5:00 AM and 70° as the weekday 1st
period heating start time and temperature, and also choose
7:00 AM and 76° as the weekday 1st period cooling start time
and temperature).
Use the table at the bottom of the page to plan your program time
periods, and the temperatures you want during each period. You
may also want to look at the sample program table to get an idea
of how the thermostat can be programmed.
Set Current Time and Day
EXAMPLE:
2. Press and hold either
or
until you reach the correct
hour and AM/PM designation (AM begins at midnight; PM
begins at noon).
3. Press SET TIME once. The display window will show the
minutes only.
EXAMPLE:
4. Press and hold either
or
until you reach the correct
minutes.
5. Press SET TIME once. The display will show the day of the
week.
6. Press
or
until you reach the current day of the week.
7. Press RUN PRGM once. The display will show the correct
time and room temperature alternately.
Enter Heating Program
1. If you want to change the display from Fahrenheit to Celsius
(or vice-versa), press SET TIME and HOLD TEMP at the
same time.
2. Move the SYSTEM switch to HEAT.
SAMPLE
Heating/Cooling Schedule Plan
WEEKEND (2 DAY)
WEEKDAY (5 DAY)
Heating/Cooling Schedule Plan
WEEKEND (2 DAY)
WEEKDAY (5 DAY)
Period
Start
Time*
Temperature
Start
Time*
Temperature
1ST HEAT
1ST HEAT
5:30 AM
68°F
7:00 AM
68°F
2ND HEAT
2ND HEAT
8:00 AM
65°F
11:00 AM
70°F
3RD HEAT
3RD HEAT
5:00 PM
70°F
6:00 PM
70°F
4TH HEAT
4TH HEAT
10:30 PM
65°F
11:30 PM
65°F
1ST COOL
1ST COOL
6:30 AM
76°F
7:00 AM
76°F
2ND COOL
2ND COOL
2:00 PM
78°F
12:30 PM
74°F
3RD COOL
3RD COOL
5:00 PM
72°F
6:00 PM
72°F
4TH COOL
4TH COOL
10:30 PM
78°F
11:30 PM
78°F
Period
Start
Time*
Temperature
Start
Time*
Temperature
* We suggest that you program the thermostat so that the cooling system has
about 30 minutes to reach the desired temperature (for example, if the first
person gets up at 6:00 AM, program the first period to begin at 5:30 AM).
6
PM
3. Press VIEW PRGM once. “MO TU WE TH FR” (indicating
weekday program) will appear in the display. Also displayed are the currently programmed start time for the 1st
heating period and the currently programmed temperature (flashing).
MO TU WE TH FR
EXAMPLE:
AM
This display window shows that for the 1st weekday period,
the start time is 6:00 AM, and 68° is the programmed
temperature (this example reflects factory preprogramming).
4. Press
or
or
! CAUTION
If the outside temperature is below 50°F, disconnect
power to the cooling system before programming.
Energizing the air conditioner compressor during
cold weather may cause personal injury or property
damage.
1. Move SYSTEM switch to COOL position.
2. Follow the procedure for entering your heating program,
using your selected cooling times and temperatures.
to change the displayed temperature to your
selected temperature for the 1st heating program period.
5. Press SET TIME once (the programmed time will flash).
Press
Enter Cooling Program
until your selected time appears. The time
will change in 15 minute increments. When your selected
time is displayed, press SET TIME again to return to the
change temperature mode.
6. Press VIEW PRGM once. The currently programmed start
time and setpoint temperature for the 2nd heating program
period will appear.
7. Repeat steps 4 and 5 to select the start time and heating
temperature for the 2nd heating program period.
8. Repeat steps 4 through 6 for the 3rd and 4th heating program
periods. Weekday heating programs are now complete.
9. Press VIEW PRGM once. “SA SU” (indicating weekend
program) will appear in the display, along with the start time
for the 1st heating period and the currently programmed
temperature.
10. Repeat steps 4 through 8 to complete weekend heating
programming.
11. When you have completed entering your heating program,
press RUN PRGM.
CHECK YOUR PROGRAMMING
Follow these steps to check your thermostat programming one
final time before beginning thermostat operation.
1. Move SYSTEM switch to HEAT position.
2. Press VIEW PRGM to view the 1st weekday heating period
time and temperature. Each time you press VIEW PRGM,
the next heating period time and temperature will be displayed in sequence for weekday, then weekend program
periods (you may change any time or temperature during this
procedure).
3. Press RUN PRGM.
4. Move SYSTEM switch to COOL position.
5. Repeat step 2 to check cooling temperatures.
6. Press RUN PRGM to begin program operation.
YOUR THERMOSTAT IS NOW COMPLETELY PROGRAMMED AND READY TO AUTOMATICALLY PROVIDE
MAXIMUM COMFORT AND EFFICIENCY!
7
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