Assemble tools required as shown below.
Failure to follow and read all instructions carefully before installing or operating this control could cause personal injury and/or property damage.
CAUTION To prevent electrical shock and/or equipment damage, disconnect electrical power to the system at the main fuse or circuit breaker until installation is complete. Before removing wires from old thermostat’s switching subbase, label each wire with the terminal designation it was removed from.
ATTENTION! This product does not contain mercury. However, this product may replace a unit which contains mercury.
Do not open mercury cells. If a cell becomes damaged, do not touch any spilled mercury. Wearing non-absorbent gloves, take up the spilled mercury and place into a container which 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 shipping container. Refer to www.white-rodgers.com for location to send the product with mercury.
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.
Thermostat installation and all components of the sys-tem shall conform to Class II circuits per the NEC code.
Electric/Gas Jumper (Fan Option)
If y our emergency or auxiliary system will energize the blow-er, then jumper W906 on the thermostat base must be cut (see fig. 1).
If your emergency or auxiliary heat system requires that the ther-mostat energize the fan circuit, do not cut jumper W906.
If you are unsure of your application, contact a qualified serviceperson.
°F or °C Selection
The factory default setting for temperature display is Fahrenheit. If you want the temperature in Celsius, clip jumper W904.
Fast or Slow Cycle Selection
The factory default setting is fast cycle, which cycles 1st stage at approximately 1.2°F and 2nd stage 0.75°F. If you prefer slow cycle, clip jump W905. The 1st stage and 2nd stage would be 1.5°F and 1.2°F respectively.
Energy Management Recovery (EMR)
This thermostat is set to operate with EMR. This causes the thermostat to start the heating or cooling system early to have the room temperature reach the program setpoint at the time the period is to start.
To disable EMR, clip jumper W903 (see Fig. 1).
O/B Terminal Switch Selection
The O/B switch on this thermostat is factory set to “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.
CAUTION Take care when securing and routing wires so they do not short to adjacent terminals or rear of thermostat. Personal injury and/or property damage may occur.
This thermostat does not require batteries to operate. The 2 “AAA” alkaline batteries are for the thermostat to remember the programming if AC voltage is lost. If the display shows BATT or CHANGE
when AC power is not present, the batteries are low and should be replaced with fresh “AAA” alkaline batteries. For best results, replace all batteries with new premium brand alkaline batteries such as Duracell® or Energizer®. To replace the batteries, install the batteries along the top of the base (see fig. 1). The batteries must be installed with the positive (+) ends to the right.
CONTINUED FROM SECOND PAGE
NOTE
To prevent static discharge problems, touch side of ther-mostat to release static build-up before touching any keys. If at any time during testing your system does not operate properly, contact a qualified serviceperson.
If your system does not have a G terminal connection, skip to Heating System.
Heating System
Emergency System
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 back-up heat only.
Cooling System
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.
The configuration menu allows you to set certain thermostat operating characteristics to your system or personal requirements.
Press RUN to make sure the thermostat is in the run program mode, then press PRGM and RUN at the same time to 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 HOLD to change to the next menu item or press TIME to go backwards to the previous item in the menu. To exit the menu and return to the program operation, press RUN. If no keys are pressed within fifteen minutes, the thermostat will revert to normal operation.
Now that you are familiar with the thermostat buttons and display,read the following information to learn about the many features of the thermostat.
Step | Press Button(s) | Displayed (Factory Default) | Press to select: | COMMENTS |
1 | PRGM and RUN | FA (on) | OFF | Select Fast (on) or slow (off) Second Stage Heat |
2 | HOLD* | CL (OFF) | ON | Select Compressor lockout OFF or ON |
3 | HOLD* | 0 HI (0) | 3 LO TO 3 HI | Select temperature display adjustment higher or lower |
4** | HOLD* | dL (ON) | OFF | Select display backlight OFF or ON |
5 | RUN | Returns to normal operation |
Note: Press HOLD to advance to next item or TIME to move backwards to previous item. Not available on earlier models
This section will help you plan your thermostat’s program to meet your needs. For maximum comfort and efficiency, keep the follow-ing guidelines in mind when planning your program.
Look at the factory preprogrammed times and temperatures shown below. If this program will suit your needs, simply press the RUN button to begin running the factory preset program.
If you want to change the preprogrammed times and temperatures, follow these steps.
Determine the time periods and 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 week-end 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.
Follow these steps to enter the heating and cooling programs you have selected.
Set Current Time and Day
Period | WEEKDAY (5 DAY) | WEEKEND (2 DAY) | |||
Start Time | Temperature | Start Time | Temperature | ||
HEAT | 1ST | 6:00 AM | 70°F | 6:00 AM | 70°F |
2ND | 8:00 AM | 62°F | 8:00 AM | 62°F | |
3RD | 5:00 PM | 70°F | 5:00 PM | 70°F | |
4TH | 10:00 PM | 62°F | 10:00 PM | 62°F | |
COOL | 1ST | 6:00 AM | 78°F | 6:00 AM | 78°F |
2ND | 8:00 AM | 85°F | 8:00 AM | 85°F | |
3RD | 5:00 PM | 78°F | 5:00 PM | 78°F | |
4TH | 10:00 PM | 82°F | 10:00 PM | 82°F |
Enter Heating Program
Period | WEEKDAY (5 DAY) | WEEKEND (2 DAY) | |||
Start Time | Temperature | Start Time | Temperature | ||
HEAT | 1ST | ||||
2ND | |||||
3RD | |||||
4TH | |||||
COOL | 1ST | ||||
2ND | |||||
3RD | |||||
4TH |
Enter Cooling Program
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.
Check Your Programming
Follow these steps to check your thermostat programming one final time before beginning thermostat operation.
YOUR THERMOSTAT IS NOW COMPLETELY PROGRAMMED AND READY TO AUTOMATICALLY PROVIDE MAXIMUM COMFORT AND EFFICIENCY!
Electrical Rating:
Reset Operation
If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the thermostat by pressing
Batteries
For optimum performance, we recommend replacing batteries once a year with fresh “AAA” alkaline batteries.
Symptom | Possible Cause | Corrective Action |
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 loose or not properly installed. | Replace fuse or reset breaker. Turn switch to ON. Replace door panel in proper position to engage safety interlock or door switch. |
No Heat | 1. Pilot light not lit. 2. System Switch not set to HEAT.
3. Loose connection to thermostat or system.
4. Furnace Lock-Out Condition. Heat may also be intermittent. | Re-light pilot. Set System Switch to HEAT and raise setpoint above room temperature. Verify thermostat and system wires are securely attached. Many furnaces have safety devices that shut down when a lock-out condition occurs. If the heat works intermittently contact the furnace manufacturer or local service person for assistance. |
Symptom | Possible Cause | Corrective Action |
No Heat (continued) | 5. Heating system requires service or ther- mostat requires replacement. | Diagnostic: Set System Switch to HEAT and raise the setpoint above room temperature. Within a few seconds 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 is operating correctly. |
No Cool | 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 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. |
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 short- ed 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 manufac- turer 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 (Air Conditioning) Cycles Too Fast or Too Slow (narrow or wide temperature swing) | 1. The location of the thermostat and/or the size of the Heating (Cooling) System may be influencing the cycle rate. | Digital thermostats normally provide precise temperature control and may cycle faster than some older mechanical models. A faster cycle rate means the unit turns on and off more frequently but runs for a shorter time so there is no increase in energy use. If you would like to increase the cycle time, clip Jumper W-905 as mentioned in the instructions for Hydronic Heating Systems. It is not pos- sible to shorten the cycle time. If an acceptable cycle rate is not achieved as received or by clipping W-905 contact a local service person for additional suggestions. |
Thermostat Setting and Thermostat Thermometer Disagree | 1. Thermostat thermometer setting requires adjustment. | Thermostat thermometer can be adjusted +/-3 degrees. See Temperature Display Adjustment in the Operation section |
Thermostat Does Not Follow Program | 1. AM or PM set incorrectly in program. 2. AM or PM set incorrectly on the clock. 3. Voltage spike or static discharge.. | Check current clock and program settings including the AM or PM designations for each time period. If a voltage spike or a static discharge occurs use the Reset Opera- tion listed above. |
Blank Display and/or Keypad Not Responding | 1. Voltage spike or static discharge, | Use the Reset Operation listed above. |
White-Rodgers is a division of Emerson Electric Co.
The Emerson logo is a trademark and service mark of Emerson Electric Co.
www.white-rodgers.com
www.emersonclimate.com
Homeowner Help Line: 1-800-284-2925
Download Manual: EMERSON White Rodgers 1F72 Programmable Heat Pump Thermostat Installation Instructions
EMERSON White Rodgers 1F72 Programmable Heat Pump Thermostat Installation Instructions
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