Universal Multi-Stage Heat Pump Digital 5/2 Day Programmable 90 Series TM P R E M I U M Oper a ting Instr uctions Opera Instructions 1F92 Retain for Future Use
Easy, Menu-Driven Set-Up and Programming 1 2 3 4 5 6 7 8 9 10 11 12 Premium options to customize the thermostat to fit your application.
INTRODUCTION Thank you for purchasing your new Comfort-Set 90 Series thermostat. Your new White-Rodgers thermostat uses solid state microcomputer technology to provide precise time/temperature control. This thermostat offers the flexibility to design heating and cooling programs that fit your needs. Adaptable to most 24 volt residential forced air, multistage or heat pump systems with electric or fossil fuel auxiliary (1F92-371).
ORIENTATION 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, red for emergency heat and flashing red for malfunction condition in system. 4 This button (on top of the cover) lights the display.
THE DISPLAY 18 Displays system mode (HEA HEA T, HEAT EMER, OFF O , HOLD OFF, COOL COOL, AUT UTO HOLD, or VACA VACA). During programming MOR, DAY, displays the time period (MOR, EVE, NHT NHT) being programmed.. In the configuration menu, the menu item name is shown, one word at a time PRGM MODE (PRGM MODE, EMR EMR, COOL FAN DELA OFF OFF, etc.). 18 19 21 20 CHECK BATTERY 21 Displays FAN ON when the fan is operating continuously.
INSTALLATION SPECIFICATIONS 1F92-371: 5/2 Day programming; residential applications ELECTRICAL DATA Electrical Rating: 20 to 30 VAC, 50/60 Hz with common Standard Systems: Multi-stage gas, oil, electric. Operating Ambient Temperature: 32° to 110°F (0° to 43°C) Single-stage or two-stage compressor heat pump. Operating Humidity Range: 90% non-condensing max. THERMAL DATA Shipping Temperature Range: -4° to 149°F (-20° to 65°C) Setpoint Temperature Range: 45° to 99°F (7° to 37°C) 0.05 to 1.
PRECAUTIONS ! WARNING ▲ ! CAUTION ▲ 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. 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 use on circuits exceeding specified voltage. Higher voltage will damage thermostat and could cause shock or fire hazard.
INSTALLATION 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 nonabsorbent gloves, take up the spilled mercury with sand or other absorbent material 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.
Insert the wires into the terminals on the base using the appropriate wiring diagram and tighten the terminal screws. 4 CONFIGURING AND PROGRAMMING L PH D SA SB SC OT 1 1 Before the power is turned on, the thermostat must be configured to operate properly with the system. See the CONFIGURATION section of this manual. This thermostat can be programmed for automatic temperature control. Refer to Operating Instructions for programming. 3 2 E C R W3 W2 E2 W1 Y2 Y1 B A1 P O G Figure 1.
MULTI-STAGE TERMINAL OUTPUTS Refer to equipment manufacturers’ instructions for specific system wiring information. You can configure the thermostat for use with either multi-stage electric heat systems or multi-stage gas systems. When configured for electric heat, the G terminal (blower/fan) will be energized on a call for heat. This thermostat is designed to operate a single-transformer system. If you have a two-transformer system, cut and tape off one transformer.
HEAT PUMP TERMINAL OUTPUTS Refer to equipment manufacturers’ instructions for specific system wiring information. You can configure the thermostat for use with the following heat pump system types: HEAT PUMP TYPE 1. Singlestage compressor system; gas or electric backup. HEAT PUMP TYPE 2. Multi-stage or two-compressor system; gas or electric backup. This thermostat is designed to operate a single-transformer system. If you have a two-transformer system, cut and tape off one transformer.
HEAT PUMP TERMINAL OUTPUTS THERMOST AT TERMIN ALS (Upper) THERMOSTA TERMINALS L PH Malfunction Light Not Used THERMOSTAT TERMINALS (Lower) SYSTEM E C R W3/A1 W2 E2/P W1 Y2 Heat mode 3rd stage. Emergency mode 2nd stage E2=Emergency mode constant output.
THERMOSTAT TERMINALS (Lower) SYSTEM E C R W3/A1 W2 E2/P W1 Y2 Y1 No Output Cool mode 1st stage B O G System requiring separate signals for heat (W1, W2) and cool (Y1); gas or electric backup Heat Pump 3** Emergency mode 1st stage 24 Volt (Common) 24 Volt (Hot) Not Used Heat mode 2nd stage. Emergency mode 2nd stage E2=Emergency mode constant output.
CONFIGURATION SWITCHES RESET SWITCH See the Troubleshooting section at the end of this document for more information about the function of this switch. 1 S18 E2/P SWITCH The E2/P switch is located on the back of the thermostat body (see fig. 2). This switch controls how the E2/P terminal of the thermostat will be energized. When the switch is in the E2 position (down), the E2/P terminal will be energized only when in emergency heat.
INSTALLER CONFIGURATION BEFORE TURNING POWER ON, please read the following instructions. Before operating the system, you must configure the thermostat to operate properly with your equipment. The thermostat, as it comes from the factory, is configured to operate a standard multi-stage electric forced hot air system with a single stage air conditioning compressor and fan. In this configuration, the thermostat will turn on the fan immediately on a call for heat.
INSTALLER CONFIGURATION (cont.) To exit the menu at any time, press PROGRAM RUN . MULTI-STAGE/HEAT PUMP MODE. (Installer table step 1.) Use this item to select the system type (multistage or heat pump). IF YOU HAVE A HEAT PUMP SYSTEM, you must select HEAT PUMP here. This sets up proper default values for most heat pump systems. This selection also makes available some additional menu items that apply only to heat pump systems. HEAT PUMP COMPRESSOR CONFIGURATION.
this digital thermostat. As configured at the factory, this thermostat will maintain an accurate temperature. No further adjustment is necessary, although you can use these menu items to customize the performance of the thermostat to your requirements. The adjustment range for HEATING is from 1 to 40 (9 to 40 for heat pump). The factory preset is 5 (13 for heat pump). The adjustment range for COOLING is from 9 to 40. The factory preset is 12 (13 for heat pump).
INSTALLER TABLE NOTE: You must be in the User Configuration Menu to enter the Installer Menu. Press TIME time. Step Press Button(s) Displayed (Factory Default) Press or 1 SET TIME and SET DAY (hold for approx. 3 seconds) HEAT PUMP MLTI STG 2 TIME FWD (Heat Pump ONLY) HEAT PUMP (1) to select: FWD and TIME BACK at same COMMENTS See Page Selects type of system. Selecting HEAT PUMP makes additional menu items for heat pump system available. 14 2 or 3 Selects: 1. one compressor on Y1. 2.
8 TIME FWD FAN DELAY ON (01) 1 to 30 seconds Selects time delay for fan ON. Applies only to compressor stages for heat pump or COOL. 18 9 TIME FWD HEAT FAN DELAY OFF (00) 0 to 127 seconds Selects time delay for HEAT fan OFF only when ELECT HEAT FAN (Step 3) is ON. 18 PUMP (ON) OFF 18 COMP LOCK (OFF) ON Fossil Fuel Kit Alternative option. Turns compressor OFF if Auxiliary is ON for longer than one minute. (Heat Pump 1 & 2) Selects compressor short-cycle protection enabled or OFF.
PROGRAMMABLE COOL FAN-OFF AND FAN-ON DELAY. (Installer table steps 7 and 8.) These items allow a selection of 0 to 127 seconds of fan-off delay after the thermostat has satisfied the call for cool, or a fan-on delay of 1 to 30 seconds on a call for cool (or heat pump compressor activation). The fan-off delay allows the fan to continue running after the compressor has shut off. This distributes the cool air that would otherwise stay trapped in the air conditioning coils through the ducts.
Lockout Bypass Option using this feature instead of a kit. This item will allow the thermostat to turn the heat pump compressor off if the auxiliary is on for more than one minute, to prevent compressor head pressure from getting too high. To use this feature instead of a kit, select PUMP OFF. FOR QUALIFIED SERVICE TECHNICIANS’ USE ONLY. HOMEOWNERS SHOULD NOT USE THIS FEATURE DUE TO POSSIBILITY OF EQUIPMENT OR PROPERTY DAMAGE, OR PERSONAL INJURY. COMPRESSOR LOCKOUT. (Installer table step 11).
DISABLING AUTOMATIC CHANGEOVER MODE. (Installer table step 13). This thermostat, as configured at the factory, provides automatic changeover, which allows the thermostat to switch between heating and cooling to maintain temperature. In this configuration, when you press the SYSTEM button, the thermostat will go through HEAT-OFF-COOL-AUTO modes (HEAT-EMER-OFF-COOLAUTO for heat pumps). Select HEAT(-EMER)-OFF-COOL to disable the automatic changeover feature.
COOLING SYSTEM ! CAUTION To prevent compressor and/or property damage, if the outdoor temperature is below 50°F (10°C), DO NOT operate the cooling system. 1. Press PROGRAM RUN . 2. Press SYSTEM until COOL is displayed. 3. Press to adjust thermostat setting below room temperature. The fan should come on (after the fan-on delay time, if any), followed by cold air circulation. 4. Press to adjust temperature setting above room temperature.
TROUBLESHOOTING RESET BUTTON If the thermostat does not respond when keys are pressed, or the thermostat is not operating properly, you may use the reset button located on the back of the thermostat body (see fig. 2). Thermostat programming and configuration will not be affected by pressing the reset button. However, the clock will need to be reset. RESETTING THERMOSTAT CONFIGURATION AND PROGRAMMING The thermostat can be reset back to default programs and configuration.
CONFIGURATION The configuration menus allow you to set certain thermostat operating characteristics to your system or personal requirements. To enter the User Configuration menu, press PROGRAM RUN to make sure the thermostat is in the run program mode, then press TIME FWD and TIME BACK at the same time. The display will show the first item in the configuration menu. The following charts (pages 24 & 25) describe each item on the menus.
User Menu Step 1 Press Button(s) Displayed (Factory Default) Press or to select: COMMENTS Ref Page TIME FWD and TIME BACK at same time for 2 seconds 0˚F (room temperature) 5 LO to 5 HI Adjusts temperature display higher or lower. 30 Selects EMR option ON or OFF or L ON. 30 Adjusts temperature display to F or C. 31 Set Fan (one shot) option. Set the duration of a temporary fan option.
User Menu (Continued) 9 TIME FWD COMP RUN TIME (00) (Compressor run time in hours) Shows accumulated time compressor has run. To reset to 00, press and . 32 10 TIME FWD AUX RUN TIME (00) (AUXILIARY run time in hours) Shows accumulated time AUXILIARY has run. To reset to 00, press and . 32 11 PROGRAM Returns to normal operation.
PROGRAMMING MANUAL OPERATION Your Comfort-Set 90 thermostat can be used to control temperature manually (without programming). For manual operation, press SYSTEM to select HEAT or COOL COOL, then press PROGRAM HOLD . Use or to set the temperature as desired. PROGRAMMED OPERATION Planning Your Program The sample schedule (page 28) shows the factory installed programs for heating and cooling. The heating and cooling programs are separate, and must be programmed individually.
9. Press TIME FWD or TIME BACK to set the time on the display as selected in your HEATING or COOLING SCHEDULE. Be sure to check the AM or PM on the display. 10.Press the red or blue key to adjust the temperature to match your schedule. If you want the fan ON continuously during this period, press FAN . 11.Press PROGRAM VIEW one time. MOR on the display will change to DAY . Repeat steps 9 and 10 to enter time and temperature for this period. 12.
5/2 Day Sample Program Schedule (Shows factory programming) 5-DAY 2-DAY Start Time Temperature Start Time Temperature MORNING H E DAY A EVENING T NIGHT (MOR) 6:00 AM 70 F (21 C) 6:00 AM 70 F (21 C) MORNING C O DAY O EVENING L NIGHT (DAY) 8:00 AM 62 F (17 C) 8:00 AM 62 F (17 C) (EVE) 5:00 PM 70 F (21 C) 5:00 PM 70 F (21 C) (NHT) 10:00 PM 62 F (17 C) 10:00 PM 62 F (17 C) (MOR) 6:00 AM 78 F (25 C) 6:00 AM 78 F (25 C) (DAY) 8:00 AM 85 F (29 C) 8:00 AM 85 F (29 C) (EVE) 5:0
5/2 Day Personal Program Schedule 5-DAY Start Time MORNING H E DAY A EVENING T NIGHT (MOR) MORNING C O DAY O EVENING L NIGHT (MOR) 2-DAY Temperature (DAY) (EVE) (NHT) (DAY) (EVE) (NHT) 29 Start Time Temperature
FEATURES 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 temperature to a higher or lower value. The thermostat is calibrated at the factory to display a very accurate room temperature, but due to various conditions and/or personal preference, you may wish to adjust the thermostat display higher or lower (up to 5°F).
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 24, item 2). Fahrenheit or Celsius Temperature Display. (User menu, Item 3) This thermostat is factory set to display temperature in Fahrenheit.
Activate RUN PRG by Telephone. (User menu, Item 8) With the optional X-10 Touch Tone Controller and a Universal Low Voltage Module, UM506, installed, you can make a telephone call to run your program if the thermostat has been set to Hold or Vacation Hold. These optional items are available from www.x10.com, or 800-675-3044. Compressor Run Time. (User menu, Item 9 and 10) You can see how long the compressor has run (in hours) by viewing the User table, Item 9.
the programming examples section lists these factory settings. If the times and temperatures are the same as your schedule, you may simply run the factory installed program by pressing PROGRAM RUN . Compressor Short-Cycle Protection. Your thermostat is designed to protect your system against premature compressor failure by “locking out” the compressor. This ensures that the compressor will stay off for approximately five minutes between cycles.
feature. Change to the next program period and press the FAN key until PR GF AN ON is on the display. PRG FAN The fan will continue to run through this period as well as the previous one. If the thermostat is in a period with continuous fan and you want the fan G to cycle, press the FAN key. PR PRG FAN ON on the display will turn off. Air Filter Change-Out Indicator. This feature allows the thermostat to display CHNG FLTR (change filter) after a set time of fan operation.
thermostat will quit calling for heat for one minute (this allows some furnaces to reset) and call for heat again. It will repeat this sequence three times. If the temperature still does not rise, it will continue to call for heat. This normally indicates the heating system is not working correctly. You may wish to consult your furnace manufacturer or service person. The display will indicate CHECK ST AT if one of the following STA occurs. • One of the keys is stuck down or in.
without a program running, press or PROGRAM HOLD . The keys can be used to raise or lower the temperature. The thermostat will hold the set temperature until you return to the program by pressing PROGRAM RUN . Programmable Vacation Time/ Temperature Operation. The VACATION key allows you to program the thermostat to hold a constant temperature for 1 to 29 days. At the end of the day and time you select, the thermostat will return to normal program operation. To program the number of days, press VACATION.
press PROGRAM RUN to resume your normal program. Large Lighted Liquid Crystal Display (LCD). The large numbers and letters on your LCD screen make it easy to see. In low light conditions, press the button on top of the thermostat and the display will light up for three seconds. For ten minutes after pressing the light button, pressing any other button will light the display for ten seconds. The thermostat display alternately shows the current time and the current temperature on the left side.
previously set program. After a power loss, the remote sensors will be operating properly, however, temperature at the remote sensors can not be displayed until PROGRAM RUN is pressed. Second Stage Time Delay. Your thermostat is designed to determine the optimum time to activate the second stage. Simply raising the temperature in heating or lowering it in cooling will not always force the thermostat to bring the second stage on quickly.
INDEX Activate RUN PRG by Telephone ------------------- 32 Adjustable Temperature Display 30 Air Filter Change-out Indicator - 34 Arm Chair Programming -------- 37 Automatic Changeover ---------- 32 Auxiliary Run Time -------------- 32 COMPONENTS ------------------ 2 Thermostat Buttons ------------- 2 Display --------------------------- 3 Compressor Run Time ----------- 32 Compressor Short-Cycle Protection -------------------------- 33 CONFIGURATION ------------- 23 User Menu Table --------------- 24 Keypad
NOTES
NOTES
The Emerson logo is a trademark and a service mark of Emerson Electric Co. White-Rodgers is a division of Emerson Electric Co. PART NO.