Single-Stage Thermostat with scheduling Install Guide Want to install the easy way? Model # P210 Made in China 37-7578B
GUIDE CONTENTS Preparations.................................................. 3 Thermostat details......................................... 4 Removal of your old thermostat.................... 5 Mounting and wiring your new thermostat... 10 Checking thermostat operation................... 12 Programming your thermostat..................... 16 Specifications.............................................. 33 Troubleshooting...........................................
1. PREPARATIONS 1.1 Check package contents This package should contain the following items: • Thermostat • Mounting screws and wall anchors (x2) • 2 AAA batteries • Terminal wire label stickers • Installation instructions 1.
2. THERMOSTAT DETAILS 1 The 1 thermostat buttons and switches 1 1 1 1 2 1 2 1 2 2 2 2 3 2 3 2 3 3 3 3 4 3 4 3 4 4 4 4 5 4 5 4 5 5 5 5 6 5 6 5 6 6 6 6 7 6 7 6 7 7 7 7 8 7 8 7 8 8 8 8 9 8 9 8 9 9 9 9 10 9 10 9 10 10 10 10 11 10 4 11 10 11 Raises temperature setting. Lowers temperature setting. TIME button. 1 PRGM (program) button. RUN (run program) button. HOLD temperature button. Time FAN switch (ON, AUTO).
3. REMOVING OLD THERMOSTAT 3.1 Turn off power or ! WARNING To prevent electrical shock and/or equipment damage, disconnect electrical power to the system at the main fuse or circuit breaker box, or by flipping a switch at the air handler. Do not restore power until installation is complete. To ensure the power to your heating and cooling system has been turned off, try to turn on heating or cooling by changing the temperature on your old thermostat.
3.2 Remove the old thermostat cover Remove the old thermostat’s front cover from the wall base. Some covers pull off easily, while others may need to be removed by prying the cover off with a screwdriver. ! CAUTION Your old thermostat may have a sealed glass tube containing mercury. Be careful not to damage the tube or dispose of the tube in your trash. For safe disposal information, please see Mercury Notice on page 43. 3.
Terminal labeling reference chart If your current terminal has the following letter Label the wires with the following letters Terminal function RH, R, R5, 5 RH 24V Power (Heating) RC RC 24V Power (Cooling) W, W1, 4 W Heating Relay Y, Y1 Y Cooling Relay G G Fan Relay O O Reversing Valve (for heat pump applications energized in Cool mode) B B Reversing Valve (for heat pump applications energized in Heat mode) 7
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3.5 Remove old thermostat base With all of your wires disconnected and properly labeled, you may now safely remove the thermostat base from your wall. Tip: Worried about having your wires falling into your wall? Keep the wires secure by wrapping the them around a pencil.
4. MOUNTING AND WIRING YOUR NEW THERMOSTAT 4.1 Install new thermostat base Mount your new thermostat base using the supplied screws. Drill holes and insert wall anchors to secure the thermostat base to the wall, if necessary.
4.2 Connect wires to corresponding terminal blocks Match each labeled wire to it’s corresponding terminal on the mounted thermostat base. Insert each labeled wire into the hole of it’s matching terminal, and using the screwdriver, tighten the screw on the terminal block securely. ! 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. 4.
4.4 Install the batteries and attach front cover Install the included AAA alkaline batteries and push the front cover on to the thermostat base until it’s secure. 4.5 Turn on power Turn on your power at the source. Congratulations! You’ve completed the thermostat installation process 5. CHECK THERMOSTAT OPERATION Tip: If at any time during testing your system does not operate properly, please contact Customer Support at 877.654.9394 or email wr.techsupport@emerson.com 5.
5.2 Heating system 1. Move SYSTEM switch to HEAT position. If the heating system has a standing pilot, be sure to light it. 2. Press to adjust thermostat setting room temperature. The heating system should begin to operate. 3. Press to adjust temperature setting below room temperature. The heating system should stop operating. 5.3 Cooling system ! CAUTION To prevent compressor and/or property damage, if the outdoor temperature is below 50°, DO NOT operate the cooling system 1.
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Cooling System Fan Relay 24 VAC Reversing Compressor Fan 120 VAC Hot Neutral Neutral Typical wiring diagram for cool only, JUMPER TRANSFORMER JUMPER WIRE 3-wire, single transformer systems WIRE THERMOSTAT THERMOSTAT wiring diagram Y B Typical O G W for RC cool RHonly, Y B O G W RC RH SYSTEM 3-wire, single transformer systems SYSTEM C‡ C‡ Cooling Cooling System System Fan Fan Relay Relay 24 VAC 120 VAC Hot Neutral 24TRANSFORMER VAC 120 VAC Valve* Contactor * Reversing valve is energized whenRelay
6. PROGRAMMING YOUR THERMOSTAT 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, 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.
1 1 2 1 2 3 2 Hold 3 Fan 4 System Prgm 1 Run 1 2 1 2 3 4 5 6 2 3 4 5 6 7 3 4 5 6 7 8 4 5 6 7 8 9 Time Fltr 3 On 4Auto Cool 5 Off Heat 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 17
6.2 18 7 4 7 5 4 5 6 The 8 5 8 6 5 6 7 9 6 9 7 6 7 8 10 7 10 8 7 8 9 11 8 11 9 8 9 10 12 9 12 10 9 10 11 13 10 13 11 10 11 12 14 11 14 12 11 12 13 15 12 15 13 12 13 14 16 13 16 14 13 14 15 17 14 17 15 14 15 16 18 15 18 16 15 16 17 19 16 19 17 16 17 18 display Indicates day of the week. Flame icon () is displayed when the SYSTEM switch is in the HEAT position. Snowflake icon ()is displayed (non-flashing) when the SYSTEM switch is in the COOL position.
6 7 8 9 10 11 12 13 14 15 16 17 18 4 2 5 3 6 4 7 5 8 6 7 8 9 10 11 8 1 2 1 1 3 2 2 4 3 3 4 4 5 5 6 6 7 7 8 8 10 9 9 11 10 10 12 11 11 7 MO9 TU WE TH FR5 SA SU 12 10 8 11 9 12 10 13 14 6 7 8 AM PM 15 FLTR HOLDCHANGE 13 9 11 16 14 12 15 13 16 14 17 18 19 9 10 11 12 13 14 15 16 17 18 19 20 19
6.3 Configuration menu 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 table summarizes the configuration options. An explanation of each option follows.
3. After releasing the button, “HOLD” on the display will blink. 4. Use or to set the temperature to your preference. The thermostat will maintain this temperature setting for 3 hours with “HOLD” blinking to remind you it is in Temporary Hold. After 3 hours the thermostat will go back to the program temperature and “HOLD” will no longer blink or display. 2. Select FA or SL (Fast or Slow) Heating Cycle Rate – The FA setting is frequently used for gas, oil or electric heat.
5. Select filter replacement run time – The thermostat will display “FLTR” 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 HOLD and RUN at the same time. This resets the timer and starts counting the hours until the next filter change. Changing the time in the menu also resets the timer. 6.
Configuration Menu Step Press Button(s) 1 PRGM and RUN 2 HOLD* Displayed (Factory Default) Press HOLD (0:00) or to select: 0 to 8 hrs (in 15 minute increments) SL COMMENTS Select temporary Hold time Select FA or SL (Fast or Slow) heating cycle rate (FA) 3 HOLD* d-L (ON) OFF Select display backlight OFF or ON 4 Select Energy Management Recovery OFF or ON HOLD* E (ON) OFF 5 HOLD* Filter (000) 0 to 1950 hours (in 50 hour increments) 6 HOLD* LOC (OFF) ON 7 HOLD* 0 HI (0) 4 LO to
6.4 Operating features This section contains information about the many features of your new thermostat. 24 • 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 your desired temperature.
6.5 Programming 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: • 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.
room temperature alternately.
Use the following table to plan your program time periods and the temperatures you want during each period. Fill in the complete table to have a record of your programs.
Entering your program Follow these steps to enter the heating and cooling programs you have selected. Set Current Time and Day 1. Press TIME button once. The display will show the hour only. EXAMPLE: PM 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 TIME once. The display window will show the minutes only.
4. Press and hold either or until you reach the correct minutes. 5. Press 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 once. The display will show the correct time and room temperature alternately. Set Heating Program 1. Move the SYSTEM switch to HEAT. 2. Press PRGM once. “MO TU W TH FR” (indicating weekday program) will appear in the display.
3. Press or to change the displayed temperature to your selected temperature for the 1st heating program period. 4. Press TIME once (the programmed time will flash). Press or until your desired time appears. The time will change in 15 minute increments. When your selected time is displayed, press TIME again to return to the change temperature mode. 5. Press PRGM once. The currently programmed start time and setpoint temperature for the 2nd heating program period will appear. 6.
12. When you have completed entering your heating program, press RUN. Set Cooling Program ! 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. To set your cooling program, follow the same procedure as setting your heating program, but use your selected cooling times and temperatures.
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 PRGM to view the 1st weekday heating period time and temperature. Each time you press 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. 4. Move SYSTEM switch to COOL position. 5.
7. SPECIFICATIONS ELECTRICAL DATA Electrical Rating: 8 to 30 VAC 50/60 Hz. or D.C. 0.05 to 1.0 Amps (Load per terminal) 1.
APPLICATIONS For use with: • Standard heat/cool or heat only systems • Electric heat systems • Gas or oil fired systems • Gas systems with intermittent ignition devices (I.I.D.) and/or vent dampers • Hydronic (hot water or steam) systems • Single-stage heat pump systems (no auxiliary heat) • Millivolt DO NOT USE WITH: • Multi-stage systems • Systems exceeding 30 VAC and 1.
8. TROUBLESHOOTING 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 , , and TIME at the same time. This also resets the factory defaults to the configuration menu and program. If the thermostat has power, has been reset and still does not function correctly contact your heating/cooling ser-vice person or place of purchase.
Symptom Possible Cause Corrective Action No Heat/No Cool/No Fan (common problems) 1. Blown fuse or tripped circuit breaker. Replace fuse or reset breaker. 2. Furnace power switch to OFF. Turn switch to ON. 3. Furnace blower compartment door or panel loose or not properly installed. Replace door panel in proper position to engage safety interlock or door switch. 1. SYSTEM Switch not set to Cool. Set SYSTEM Switch to COOL and lower setpoint temperature below room temperature. No Cool 2.
Symptom Possible Cause Corrective Action No Heat 1. Pilot light not lit. Re-light pilot. 2. SYSTEM Switch not set to HEAT. Set SYSTEM Switch to HEAT and raise setpoint temperature above room temperature. 3. Loose connection to thermostat or system. 4. Furnace Lock-Out Condition. Heat may also be intermittent. 5. Heating system requires service or thermostat requires replacement.. Verify thermostat and system wires are securely attached.
Symptom Possible Cause Corrective Action Heat, Cool or Fan Runs Constantly. 1. 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. 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. 2.
Symptom Possible Cause Corrective Action Cooling Cycles Too Fast or Too Slow 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.
Symptom Possible Cause Corrective Action Thermostat Does Not Follow Program 1. AM or PM set incorrectly in program. Check current clock and program settings including the AM or PM designations for each time period. If a voltage spike or static discharge occurs use the Reset Operation listed above. 2. AM or PM set incorrectly on the clock. 3. Voltage spike or static discharge. Blank Display and/or Keypad Not Responding 40 1. Loss of power and dead batteries. 2. Voltage Spike or Static Discharge.
CONTACT US Customer support: 877.654.9394 or wr.techsupport@emerson.
MERCURY NOTICE This product does not contain mercury. However, this product may replace a product that contains mercury. Mercury and products containing mercury must not be discarded in household trash. Refer to thermostat-recycle.org for location to send product containing mercury. FOR CALIFORNIA RESIDENTS Warning: This product contains a chemical known to the state of California to cause cancer and birth defects and other reproductive harm.
