EMERSON White-Rodgers 1F89-211 Non-programmable Electronic Digital Heat Pump Thermostat
Your new White-Rodgers Digital Thermostat uses the technology of a solid-state microcomputer to provide precise temperature control.
- Simultaneous heat and cool setpoint storage
- Setpoint storage in case of power loss
- Pre-set temperature control
- LCD continuously displays setpoint and room temperature
- Continuous Backlit display option
- °F/°C convertibility
- Temperature range 45° to 90°F
- R, C, Y, W2, G, O/B, E, and L terminals for single or two-transformer systems
- Optional “AA” batteries to provide continuous temperature display during the loss of AC power
This thermostat is intended for use with a low-voltage system; do not use this thermostat with a 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. 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.
To prevent electrical shock and/or equipment damage, disconnect electric power to the system at the main fuse or circuit breaker box until installation is complete.
- Do not use on circuits exceeding specified voltage. Higher voltage will damage control and could cause shock or fire hazards.
- Do not short out terminals on gas valve or primary control to test. Short or incorrect wiring will damage the thermostat and could cause personal injury and/or property damage.
- Thermostat installation and all components of the system shall conform to Class II (current limited) circuits per the NEC code. Failure to do so could cause a fire hazard.
For California Residents: This product contains a chemical known to the state of California to cause cancer and birth defects and other reproductive harm.
- Electrical Rating:
- 20 to 30 VAC 50/60 Hz. or D.C.
- 0.05 to 1.0 Amps (Load per terminal)
- 1.5 Amps Maximum Total Load (All terminals combined)
- 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: -4°F to 149°F
For use with:
- Standard heat pump systems with electric, gas or oil Aux heat with 24 VAC HOT and COMMON available
- Single-stage heat pump systems with no Aux heat with 24 VAC HOT and COMMON available
DO NOT USE WITH:
- Millivolt systems
- Systems exceeding 30 VAC and 1.5 amps
- 3-wire zoned hydronic heating systems
REMOVE OLD THERMOSTAT
- Shut off electricity at the main fuse box until installation is complete. Ensure that the electrical power is disconnected.
- Remove the front cover of the old thermostat. With wires still attached, remove the 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.
- Identify each wire attached to the old thermostat using the labels enclosed with the new thermostat.
- Disconnect the wires from the old thermostat one at a time.
DO NOT LET WIRES FALL BACK INTO THE WALL.
- Install new thermostat using the following procedures.
This product does not contain mercury. However, this product may replace a unit that contains mercury.
Do not open mercury cells. If a cell becomes damaged, do not touch any spilled mercury. Wearing nonabsorbent gloves, take up the spilled mercury and place into a container that can be sealed. If a cell becomes damaged, the unit should be discarded.
Mercury must not be discarded in household trash. When the unit this product is replacing is to be discarded, place in a suitable container. Refer to www.thermostat-recycle.org for a location to send products containing mercury.
ATTACH THERMOSTAT BASE TO WALL
- Remove the packing material from the thermostat. Gently pull the cover straight off the base. Forcing or prying on the thermostat will cause damage to the unit.
- Connect wires beneath terminal screws on the base using the appropriate wiring schematic (see figs. 2 through 4).
- Place base over the hole in wall and mark mounting hole locations on wall using base as a template.
- Move the base out of the way. Drill mounting holes.
- Fasten the base loosely to wall, as shown in fig. 1, using two mounting screws. Place a level against the bottom of the 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 the holes drilled are too large and do not allow you to tighten base snugly, use plastic screw anchors to secure sub base.
- Push excess wire into wall and plug hole with a fire-resistant material (such as fiberglass insulation) to prevent drafts from affecting thermostat operation.
ELECTRIC/GAS JUMPER (Fan Option)
Read the following information before clipping the nonelectric heat jumper. If you are unsure of your application, contact a qualified service person.
If your emergency or auxiliary system will energize the blower, then the jumper, W904, on the thermostat base must be cut (see fig. 1).
If your emergency or auxiliary heat system requires that the thermostat energize the fan circuit, do not cut jumper W904.
With two “AA” batteries installed, your thermostat will continuously display the temperature during a loss of AC power.
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.
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.
CHECK THERMOSTAT OPERATION
If at any time during testing your system does not operate properly, contact a qualified service person.
Turn on power to the system.
If your system does not have a G terminal connection, skip to Heating System.
- Move the fan switch to the ON position. The blower should begin to operate.
- Move the fan switch to the AUTO position. The blower should stop immediately.
- Move SYSTEM switch to the HEAT position. If the auxiliary heating system has a standing pilot, be sure to light it.
- Press to adjust the thermostat setting to 1° above room temperature. The Heat Pump system should begin to operate. However, if the Flame icon () and Snowflake icon are flashing, the compressor lockout feature is operating.
- Adjust the temperature setting to 4° above room temperature. The auxiliary heat system should begin to operate and the Flame icon will be flashing.
- Press to adjust the temperature setting below room temperature. The heating system should stop operating.
EMER bypasses the Heat Pump to use the heat source wired to terminal E on the thermostat. EMER is typically used when compressor operation is not desired, or you prefer backup heat only.
- Move the SYSTEM switch to EMER position. EMER will flash on the display.
- Press to adjust the thermostat above room temperature. The Aux heating system will begin to operate. The flame icon will display flashing to indicate that the Aux system is operating
- Press to adjust the thermostat below room temperature. The Aux heating system should stop operating.
To prevent compressor and/or property damage, if the outdoor temperature is below 50°F, DO NOT operate the cooling system.
- Move the SYSTEM switch to the COOL position.
- Press to adjust the thermostat setting below room temperature. The blower should come on immediately at high speed, followed by cold air circulation
- Press to adjust the temperature setting above room temperature. The cooling system should stop operating.
Do not allow the compressor to run unless the compressor oil heaters have been operational for 6 hours and the system has not been operational for at least 5 minutes.
THERMOSTAT QUICK REFERENCE
Before you begin using 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, pull it straight out from the base. To replace the cover, line up the cover with the base and press until the cover snaps onto the base.
- Raises temperature setting.
- Lowers temperature setting.
- FAN switch (ON, AUTO).
- SYSTEM switch (COOL, OFF, HEAT, EMER).
- The flame icon is displayed when the SYSTEM switch is in the HEAT position. The flame icon is displayed flashing when 2nd-stage heat (Aux or Emergency) is energized. Snowflake icon is displayed (non-flashing) when the SYSTEM switch is in the COOL position. Snowflake and Flame are displayed (flashing) if the thermostat is in lockout mode to prevent the compressor from cycling too quickly.
- Indicates a malfunction with the system.
- Displays current temperature.
- EMER is displayed flashing when the system switch is in the EMER position.
- Displays current set temperature (this is blank when the SYSTEM switch is in the OFF position).
- Displays FILTER when the system has run for the programmed filter time period as a reminder to change or clean.
- Move the SYSTEM switch to the EMER position. EMER will flash on the display.
- Press to adjust the thermostat above room temperature. The Aux heating system will begin to operate. The flame icon () will display flashing to indicate that the Aux system is operating
- Press to adjust the thermostat below room temperature. The Aux heating system should stop operating.
The configuration menu allows you to set certain thermostat operating characteristics to your system or personal requirements.
Move the SYSTEM switch to the OFF position, then press at the same time enter the configuration menu. The display will show the first item in the configuration menu.
The configuration menu chart summarizes the configuration options. An explanation of each option follows.
Press to change to the next menu item. To exit the menu, move the SYSTEM switch to HEAT or COOL. If no keys are pressed within fifteen minutes, the thermostat will exit the configuration menu.
|Displayed (Factory Default)
|Press to select:
switch to OFF
|The SYSTEM switch must be OFF to configure thermostat options
|Select FA or SL (Fast or Slow) pump cycle rate
|Select FA or SL (Fast or Slow) Auxiliary and Emergency Aux heating cycle rate
|Select display backlight OFF or ON
|0 to 1950 hours(in 50-hour increments)
|Select filter replacement run time
|Select Compressor lockout OFF or ON
|4 LO to4 HI
|Select temperature display adjustment higher or lower
|Select temperature display to F or C
|Select fast second-stage ON or OFF
|Set SYSTEM switch to HEAT or COOL
|Returns to normal operation
- Select FA or SL (Fast or Slow) Heat Pump stage Cycle Rate – The FA setting is used to produce shorter heating cycles. The SL setting produces a longer heating/cooling cycle. Both settings produce very accurate temperature control and can be set to your personal preference. FA cycles the system just under .75°F and the SL setting cycles at approximately 1.2°F.
- Select FA or SL (Fast or Slow) Auxiliary or Emergency Cycle Rate – The FA setting is frequently used for gas, oil or electric heat. The SL setting produces a longer heating cycle. Both settings produce very accurate temperature control and can be set to your personal preference. FA cycles the system just under .6°F and the SL setting cycles at approximately 1.°F.
- Select backlit display (d-L OFF or ON) – The display backlight improves display contrast in low lighting conditions. Selecting the backlight ON will keep the light on continuously. Selecting OFF will keep the light off.
- Select filter replacement run time – The thermostat will display FILTER after a set time of operation. This is a reminder to change or clean your air filter. This time can be set from 0 to 1950 hours in 50-hour increments. A selection of 000 will cancel this feature. When FLTR is displayed, you can clear it by pressing at the same time. This resets the timer and starts counting the hours until the next filter change. Contact your heat pump manufacturer for a specific replacement/maintenance interval.
- Select Compressor Lockout (LOC OFF or ON) – Selecting LOC ON will cause the thermostat to wait 5 minutes before turning on the compressor if the heating and cooling system loses power. It will also wait 5 minutes minimum between cooling cycles. This is intended to help protect the compressor from short cycling. Some newer compressors already have a time delay built in and do not require this feature. Your compressor manufacturer can tell you if the feature is already present in their system. When the thermostat compressor time delay occurs it will flash the Snowflake or Flame icon for about five minutes.
- Select Temperature Display Adjustment (4 LO to 4 HI) – Allows you to adjust the room temperature display up to 4° higher or lower. Your thermostat was accurately calibrated at the factory but you have the option to change the display temperature to match your previous thermostat. The current or adjusted room temperature will be displayed on the right side of the display.
- Select Temperature Display (°F or °C) – Changes the display readout to Celsius or Fahrenheit as required. The current room temperature will be displayed on the right side of the display.
- Select Fast second stage – In the RUN mode, if the temperature is manually raised by 3°F (2°C) or more above room temperature using and the fast second stage feature is enabled, FA on, the second stage will energize immediately. With FA off, the second stage will not energize until the setpoint temperature is 10°F or more above room temperature.
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 SETPOINT STORAGE — You can enter both your heating and cooling setpoints at the same time. There is no need to change the thermostat at the beginning of each season.
- CONFIGURATION MENU — Allows you to customize certain thermostat options.
SETTING THE THERMOSTAT
This thermostat is very easy to operate. Set the SYSTEM switch to either HEAT or COOL then pressuntil the temperature you want to maintain is shown on the right side of the display. If you want to turn the system off, just move the SYSTEM switch to OFF.
The FAN switch controls the fan operation. When the FAN switch is set to AUTO, the fan will cycle with the furnace or air conditioner. When the FAN switch is set to ON, the fan will run continuously, regardless of SYSTEM switch position.
If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the thermostat by changing the system from Off to Heat while pressing, at the same time. If the thermostat has power, has been reset and still does not function correctly contact your heating/cooling service person or place of purchase.
|No Heat/No Cool/No Fan (common problems)
|1. Blown fuse or tripped circuit breaker.
2. Furnace power switch to OFF.
3. Furnace blower compartment door or panel lose or not properly installed.
|Replace the fuse or reset the breaker. Turn the switch to ON.
Replace the door panel in the proper position to engage the safety interlock or door switch.
|1. System Switch not set to Heat.
2. Loose connection to thermostat or system.
3. Heating System requires service or the thermostat requires replacement.
|Set System Switch to Heat and raise the setpoint above room temperature.
Verify thermostat and system wires are securely attached. Diagnostic: Set the System Switch to Heat and raise the setpoint above room temperature. Within five minutes the thermostat should make a soft click sound. This sound usually indicates the thermostat is operating properly. If the thermostat does not click, try the reset operation listed above. If the thermostat does not click after being reset contact your heating and cooling service person or place of purchase for a replacement. If the thermostat clicks, contact the furnace manufacturer or a service person to verify the heating system is operating properly.
|1. System Switch not set to Cool.
2. Loose connection to thermostat or system.
3. Cooling System requires service or thermostat requires replacement.
|Set System Switch to Cool and lower the setpoint below room temperature.
Verify thermostat and system wires are securely attached. Same procedure as diagnostic for No Heat condition except set the thermostat to Cool and lower the setpoint below the room temperature. There may be up to a five-minute delay before the thermostat clicks in Cooling if the compressor lock-out option is selected in the configuration menu (Item 6).
|Heat, Cool or Fan Runs Constantly
|1. Possible short in wiring.
2. Possible short in thermostat.
3. Possible short in Heat/Cool/Fan system.
4. Fan Switch set to Fan On.
|Check each wire connection to verify they are not shorted or touching together. No bare wire should stick out from under terminal screws. Try resetting the thermostat as described above. If the condition persists, the manufacturer of your system or service person can instruct you on how to test the Heat/Cool system for correct operation. If the system operates correctly, replace the thermostat.
|Furnace Cycles Too Fast or Too Slow
(narrow or wide temperature swing)
|1. The location of the thermostat and/or the size of the Heating System may be influencing the cycle rate.
|Item 2 in the Configuration Menu is the adjustment that controls the cycle rate. If an acceptable cycle rate is not achieved using the FA (Fast) or SL (Slow) adjustment contact a local service person for additional suggestions.
|Cooling Cycles Too Fast or Too Slow (narrow or wide temperature swing)
|1. The location of the thermostat and/or the size of the Cooling System may be influencing the cycle rate.
|The cycle rate for cooling is fixed and can not be adjusted. Contact a local service person for suggestions.
|Thermostat Setting and Thermometer Disagree
|1. Thermostat thermometer setting requires adjustment.
|The thermometer can be adjusted +/- 4 degrees as listed in item 7 of the Configuration Menu. No other adjustment is possible.
|Blank Display and/or Keypad Not Responding
|1. Loss of power.
2. Voltage Spike or Static Discharge.
|Check the heat/cooling system for power.
If a voltage spike or static discharge occurs use the Reset Operation listed above.