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Touchscreen Programmable Thermostat Model 43855 3 Stage Heat/2 Stage Cool installation and operation manual
TABLE OF CONTENTS IMPORTANT INFORMATION.......................................4 INSTALLATION PROCEDURES.....................................4 GENERAL OPERATING INSTRUCTIONS......................21 DATE & TIME SETTINGS.............................................22 SYSTEM SETTINGS MENU..........................................27 USER SETTINGS MENU...............................................31 TEMPERATURE RANGE..............................................34 ENERGY STAR DEFAULT PROGRAMS....................
Touchscreen Programmable Thermostat Model 43855 3 Stage Heat/2 Stage Cool Congratulations! Thank you for choosing a Climate Technology Corporation programmable thermostat. Your new CTC thermostat will provide years of reliable service and year-round energy savings. Please read this manual before beginning installation and save this booklet for complete operating instructions.
IMPORTANT INFORMATION This thermostat is designed to work on the following heating and cooling systems: Up to 3 Stage Heat/2 Stage Cool Heat Only or Cool Only Systems Single and Multi-Stage Heat Pumps Gas, Electric or Oil Systems Millivolt Systems 2-wire Hydronic Systems AC or Hard-wired This thermostat is not designed for use with 110V/220 V systems. If you are unsure of what kind of heating and cooling system you have, please contact a qualified HVAC Technician for assistance.
W RC Y G W RC Y G w NOTICE OF CAUTION! DO NOT disconnect the wires from the existing thermostat before reading these instructions. The wires must be labeled prior to removal to ensure proper connection.
W RC Y G RC Y G W 44003-01 r051507
UNINSTALLING THE EXISTING UNIT 1. Turn the system power OFF at the existing thermostat. Turn the power to the HVAC system OFF at the main power panel or at the furnace. (Failure to turn off the power to the existing thermostat before removal could damage your system.) 2. Remove the existing thermostat cover to access the wires from the wall. (Some thermostats may have multiple covers, screws or other locking devices that must be removed or disengaged.) 3. Locate, but do not disconnect the wires.
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5. Using the provided stickers, label each wire according to the chart. If the terminals are not labeled, contact a qualified HVAC technician. NOTE: Wire colors do not always comply with standards; therefore, wire color should be ignored. Refer to the existing terminal designation for proper identification. If wires marked “Y” or “C” are both present, “C” may be a Common wire and provides 24 VAC power to the unit. Connecting it greatly extends battery life.
CONVENTIONAL HVAC SYSTEMS Y1 / Y2 if your existing thermostat is marked: R / RC Y2 Y1 Cooling Stage 1 or 2 label the wire with this sticker: Cooling Transformer Power Supply R/RC Y1 Y2 W1 / W2 / W3 C W3 W2 W1 Heating Stage 1, 2 or 3 24 VAC Common (if available) W1 W2 W3 G Fan H RH Heating Transformer Power Supply H Humidifier Control G RH C H G C label the wire with this sticker: R/RC if your existing thermostat is marked: RH See pages 72-73 for a complete wiring diagram.
HEAT PUMP SYSTEMS label the wire with this sticker: label the wire with this sticker: C Y2 Y1 Compressor Stage 1 or 2 24 VAC Common Y1 Y2 O W2 Auxilliary Heat Cool Mode Powered Reverse Valve O W2 E G Fan E G Emergency Heat G R / RC E B R/RC 24 VAC Power Supply Heat Mode Powered Reverse Valve R/RC L System Monitor B H H L B W2 C O Y1 / Y2 if your existing thermostat is marked: C if your existing thermostat is marked: Humidifier Control L H See pages 74 for a complete wi
RC L O C Y H B W1 E Y1 Y2 W3 W2 G RH RCR G W 12 44003-01 r051507
MOUNTING THE WALL PLATE 1. Remove the wall plate from the CTC thermostat by gently pulling the wall plate from the back of the thermostat. 2. Position the new wall plate on the wall horizontally and pull the labeled wires through the opening. 3. If the existing holes do not match those on the CTC thermostat wall plate or, if there are no existing holes, visually level the wall plate and mark the wall for two holes.
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4. Remove the wall plate from the wall and drill two 3/16” holes where marked. 5. Tap the plastic anchors into the holes until they are flush with the wall. 6. Reposition the wall plate on the wall, pulling the wires through the wall plate opening. Insert the mounting screws through the wall plate and into the anchors. Verify that the wall plate is level. Securely tighten both screws.
Terminal Shield Terminal Screw Jumper Wire 16 44003-01 r051507
CONNECTING THE WIRES 1. Loosen, but do not remove the terminal screws. NOTE: A jumper wire is provided, connecting the RH and RC terminals for systems that do not have both an RH and RC wire. If you have both an RH and RC wire, remove this jumper; otherwise, leave the jumper in place. 2. Complete wiring diagrams for Conventional HVAC Systems and Heat Pump Systems are provided on pages 72-74. Match and connect the wires from the wall to the terminals as shown. Insert wires behind the black terminal shield.
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ATTACHING THE THERMOSTAT 1. Insert three AA alkaline batteries into the back of the thermostat. 2. Place the thermostat over the wall plate, aligning it over the terminal and battery openings. Press the thermostat to the wall plate and it will snap into place. NOTE: Do not force the thermostat onto the wall plate as this may damage the terminal pins. If the thermostat does not snap into place easily, the unit may not work. 3. Restore power at the electrical panel and/or furnace.
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GENERAL OPERATING INSTRUCTIONS Your new CTC thermostat is easy to program and use. The front of the thermostat is a touch screen that responds to the pressure of a finger. You can program the thermostat to automatically readjust the temperature, humidity and airflow to settings that you choose or you can use the pre-programmed default settings. You can also operate the thermostat manually.
DATE & TIME SETTINGS DATE, MONTH, YEAR MAY 17 2006 1 THURSDAY 2 3 22 44003-01 r051507
1. Touch either the month, date, year at the top of the touch screen. 2. Touch the or sign to adjust the setting. 3. Repeat Steps 1-2 for each setting. Touch 44003-01 r051507 to return to the main screen.
CLOCK MAY 17 2006 THURSDAY 1 2 3 24 44003-01 r051507
The clock is a 12-hour clock with AM and PM settings. 1. Touch the time on the touch screen. SET CLOCK appears and the hour flashes. Note the AM & PM indicators. 2. Touch the or sign to adjust the setting. 3. Repeat Steps 1-2 to adjust the minutes setting. Touch screen. to return to the main NOTE: The clock can be set to automatically adjust for Daylight Savings Time in the USER SETTINGS MENU, see pages 31-33.
SETTING the span The SPAN setting mode in the SYSTEM SETTINGS MENU allows you to adjust the system ON/OFF cycle rate. The default setting is 2F. The system cycles ON or OFF when the temperature is within 2°F (1°C) above and below the set temperature. The span setting can be adjusted if your system is cycling too fast or too slowly.
SYSTEM SETTINGS MENU The installer can set SYSTEM functions once the thermostat is installed. The default settings are shown in bold in the following list. Options are listed inside the parentheses. Example: the default SYSTEM TYPE is CONVENTIONAL with (HEAT PUMP) as a second option. See pages 28-29 to change these settings. 1. SYSTEM: CONVENTIONAL (CONVENTIONAL, HEAT PUMP) 2. FURNACE TYPE: GAS/OIL (GAS/OIL, ELECTRIC) 3. HUMIDITY CONTROL: ON (ON, OFF) 4.
SYSTEM SETTINGS MENU (CONT'D) SYSTEM or USER 3 1 5 2 7 28 4 6 8 44003-01 r051507
1. Touch a blank area of the touch screen. 2. Press and hold for 3 seconds for SYSTEM and USER settings to appear. 3. Touch SYSTEM. The selected word flashes. 4. Touch . 5. Scroll through the first setting with the the list on page 27 for setting options. 6. Touch 44003-01 r051507 sign to select an option. Refer to to confirm selection and move to next setting. 7. When all settings are complete, touch 8. Touch or to exit. to return to the main screen.
USER SETTINGS The PERIODS PER DAY (Option 1) can be set to 0, 2 or 4. When set to 0, the thermostat operates as a digital non-programmable thermostat. The FILTER CHANGE INDICATOR (Option 2) runs in calendar days and can be set from 30-360 days in 15-day increments (the default is 90). The REFRESH FAN ON (Option 3) function runs only the fan during heating or cooling off cycles. This balances the indoor air and improves air quality by cycling the air through the filter.
USER SETTINGS MENU The USER can also set certain functions in the USER SETTINGS MENU. The default settings are shown in bold in the following list. Options are listed inside the parentheses. Example: the default PROGRAMS PER DAY is 4 Periods with (0 and 2) as options. See pages 32-33 to change these settings. 1. PROGRAMS PER DAY: 4 Periods (0, 2, 4) 2. FILTER CHANGE DAYS: 90 Days (30-360, in 15 day increments) 3. REFRESH FAN ON TIME: 15 Minutes (10, 15, 20, 30) 4. CLOCK DISPLAY: ON (ON, OFF) 5.
USER SETTINGS MENU (cont'd) SYSTEM or USER 3 1 5 2 7 32 4 6 8 44003-01 r051507
1. Touch a blank area of the touch screen. 2. Press and hold for 3 seconds for SYSTEM and USER settings to appear. 3. Touch USER. The selected word flashes. 4. Touch . 5. Scroll through the first setting with the the list on page 31 for setting options. 6. Touch 44003-01 r051507 sign to select an option. Refer to to confirm selection and move to next setting. 7. When all settings are complete, touch 8. Touch or to exit. to return to the main screen.
TEMPERATURE RANGE This thermostat meets ENERGY STAR guidelines for energy efficiency. By using the preprogrammed and default settings, this thermostat can save you money by optimizing energy usage in heating and cooling.
ENERGY STAR DEFAULT PROGRAMS Refer to the Energy Star Default Programs Chart shown below for detailed Information about pre-programmed settings. If customizing your programs, you can revert to the Energy Star default programs below by pressing the icon in the program mode.
MANUAL OPERATION Many people prefer to operate their thermostats manually, adjusting settings as needed. NOTE: PROGRAMS PER DAY must be set to 0 for manual operation. See USER SETTINGS MENU (pages 31-33).
1. Touch a blank area of the touch screen. SELECT FUNCTION appears. 2. Touch the or icon. SET SYSTEM MODE appears. 3. Scroll through the settings with the modes: HEAT ( AUTO ( icon, red screen) and icons) 4. Touch or sign to select one of the SYSTEM EMHEAT (only for Heat Pump Systems) COOL ( icon, blue screen) OFF (no icon) to return to the main screen. The icon will show on the main screen if the system is heating; the show if the system is cooling.
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PROGRAM OPERATION CREATING CUSTOM PROGRAMS You can program the thermostat to automatically adjust the temperature, humidity and airflow up to four times per day. The PROGRAMS PER DAY setting must be set to 2 or 4 in USER SETTINGS, see pages 31-33. NOTE: Program times are set in 10-minute increments. When setting a program time, note the AM and PM indicators. Program temperatures are set in increments of 1°F (1°C). After 15 seconds of inactivity during programming, the thermostat returns to the main display.
CREATING CUSTOM PROGRAMS (cont'd) This thermostat has an autorecovery function and will automatically calculate the time needed to achieve the temperature you set. Therefore, it will be at the temperature you select at the time you select. (Step 7, page 41).
1. Touch a blank area of the screen to begin programming. SELECT FUNCTION appears at the top of the display. (Image P1) 2. Touch the icon. PRESS PRG TO PROGRAM appears at the top of the display along with the days of the week. NOTE: Either 2 or 4 PERIOD icons will display depending upon how many were selected in USER SETTINGS. 3. Touch the icon again. SELECT ICON TO PROGRAM appears at the top of the display. (Image P2) 4. Touch the day(s) to be programmed. A check mark is placed next to each day selected.
CREATING CUSTOM PROGRAMS (cont'd) SELECT ICON TO PROGRAM 13 9 14 42 11 10 12 15 P2 44003-01 r051507
9. Touch the temperature display to set the temperature. 10. Touch the or sign to adjust numerals. 11. Touch the humidity display to set the humidity. 12. Touch the NOTE: Touch 13. Touch or sign to adjust numerals. to set the selected period to Energy Star settings. See page 35. repeatedly to select fan mode (ON, AUTO, or REFRESH). 14. Touch to save the settings for the selected days/period and to select new days/period for programming. 15.
FAN PROGRAM MODE MAY 17 2006 THURSDAY 1 2 3 4 44 44003-01 r051507
1. Touch a blank area of the touch screen. SELECT FUNCTION appears. 2. Touch the icon. SET FAN TO PROGRAM MODE appears. 3. Scroll through the fan settings with the modes: or sign to select one of the fan ON: Fan runs continuously regardless of the system mode. AUTO: Fan runs when the system is on. REFRESH: Fan runs on a set interval if the system does not cycle on for one hour. PROGRAM: Fan is controlled by the settings in the programs. 4. Touch The to return to the main screen.
PROGRAM OVERRIDES You can either temporarily override the settings for the current program, or permanently override all settings and adjust temperatures manually.
1. Touch the temperature icon ( ) or humidity icon ( ). The selected icon will flash and SET OVERRIDE TEMPERATURE or SET OVERRIDE HUMIDITY appears, depending upon your selection. 2. Touch the 3. Press 4. Touch the 5. Press or sign to adjust the setting. and the screen displays SELECT HOLD TYPE. or sign to select TEMPORARY HOLD. and the screen displays TEMPORARY HOLD – HOLD UNTIL. 6. Touch the hour and minutes and use the or sign to set the ending time. 7.
PERMANENT OVERRIDE SETTINGS SELECT HOLD TYPE 48 1 2 4 1 3 5 44003-01 r051507
1. Touch the temperature icon ( ) or humidity icon ( ). The selected icon will flash and SET OVERRIDE TEMPERATURE or SET OVERRIDE HUMIDITY appears, depending upon your selection. 2. Touch the 3. Press 4. Touch the 5. Press 44003-01 r051507 or sign to adjust the setting. and the screen displays SELECT HOLD TYPE. or sign to select PERMANENT HOLD. and the main display shows HOLD.
VACATION OVERRIDE SETTINGS SELECT HOLD TYPE 6 50 1 3 5 1 2 4 6 44003-01 r051507
1. Touch the temperature icon ( ) or humidity icon ( ). The selected icon will flash and SET OVERRIDE TEMPERATURE or SET OVERRIDE HUMIDITY appears, depending upon your selection. 2. Press 3. Touch the 4. Press and screen displays SELECT HOLD TYPE. or sign to select VACATION HOLD. and the main display shows VACATION HOLD. SET NUMBER OF DAYS. Numeral flashes. 5. Touch the 6. Press 44003-01 r051507 or sign to adjust the number of days. and the main display shows HOLD.
CANCEL TEMPERATURE OR HUMIDITY HOLD MAY 17 2006 THURSDAY 1 2 52 44003-01 r051507
1. Touch the 2. Press icon. CANCEL TEMPERATURE HOLD appears. , the hold is released and main display returns. NOTE: If the Temperature or Humidity is touched and override screens appear but no changes are made, the HOLD remains and the main display returns.
HOME TODAY FUNCTION HOME TODAY overrides the program settings for periods , and with comfortable heat or cool settings while you are home. HOME TODAY ends when period begins.
1. Touch a blank area of the touch screen. 2. Touch the icon. 3. Touch the TODAY. or 4. Touch to return to the main display. The sign to toggle between SET HOME TODAY and CANCEL HOME icon will show on the main screen if it is activated. 5. Touch the 44003-01 r051507 icon and press to deactivate the HOME TODAY feature.
ADDITIONAL FEATURES The CLEAN SCREEN FUNCTION allows 30 seconds to clean the touch screen without disturbing the existing settings.
1. Touch a blank area of the touch screen. 2. Touch . PRESS ENTER FOR CLEANING appears. 3. Press to return to the main screen. A 30-second countdown begins to allow time to clean the touch screen. 4. Use a damp cloth with a non-corrosive solvent such as water or a household glass cleaner to clean the screen.
LOCK FUNCTION The lock function allows a user to lock the touch screen to prevent unexpected or accidental changes.
1. Touch a blank area of the touch screen. 2. Touch the icon. appears. 3. Touch once for the first digit, twice for the second and three times for the third digit. 4. Touch the or sign to adjust the setting. 5. Repeat 3-4 for each digit. 6. Touch to return to the menu screen. 7. Touch to confirm code and return to main screen. The icon will appear on the main screen. NOTE: Once a code is set, touching the function on the main screen will bring the user to ENTER CODE TO UNLOCK.
CHANGE FILTER The FILTER CHANGE indicator icon will flash after the filter life counter expires as a reminder to check or change your HVAC filter. Reset the filter function after you have changed the filter. The filter change counter is set in the USER SETTING MENU for a period of 30-360 days.
1. Touch a blank area of the touch screen. 2. Touch display. . FILTER RUN TIME and HOLD FILTER KEY TO RESET appear on the 3. Touch and hold for 3 seconds for time to reset. (Pressing the filter button for less than 3 seconds will cause the Filter indicator icon to continue to appear.) 4. Press 44003-01 r051507 to return to the main screen.
CHANGE BATTERIES The CHANGE BATTERIES warning indicates two stages of battery power shortage. When the batteries are weak, the CHANGE BATTERIES warning flashes until three new AA alkaline batteries are installed. If the batteries become too weak for normal operation, the thermostat enters the second battery power shortage mode. When no battery power is left, the BATTERIES USED UP warning flashes on the display and the system turns off. The system remains off until new batteries are installed.
AUTO RECOVERY The AUTO RECOVERY FUNCTION allows heating and cooling systems to gradually recover from an energy-saving set point temperature to a comfort set point temperature. AUTO RECOVERY calculates the time needed to adjust the temperature to the next program setting. When the thermostat is in AUTO RECOVERY mode, the display flashes alternatively SYSTEM IN AUTO RECOVERY and the weekday. NOTE: AUTO RECOVERY does not operate if Permanent or Temporary Holds are on.
ENERGY MONITOR FUNCTION The ENERGY MONITOR function allows you to review and monitor the effect of your program settings on the system runtime.
1. Touch a blank area of the touch screen. 2. Touch the icon. 3. Scroll through the SYSTEM RUNTIME settings with the or sign to see the system runtime in hours for TODAY, YESTERDAY, the CURRENT MONTH or the LAST MONTH. 4. Touch and hold the 5. Touch 44003-01 r051507 icon for 3 seconds to reset the counters. to return to the main screen.
ERROR MESSAGE ERROR mode indicates an expected operation problem. The screen flashes a SYSTEM ERROR message and shuts the system off. You must reset and the thermostat by replacing the batteries if the thermostat has entered ERROR mode. AUTO CUT-OFF AUTO CUT OFF automatically turns the system off if the temperature rises above 95°F (35°C) or drops below 40°F (4°C). NOTE: If the HVAC system has malfunctioned, the systems no longer respond to the thermostat controls and the AUTO CUT OFF will have no effect.
COMPRESSOR PROTECTION After the system stops running in cooling mode, there is a 3.5 minute delay before it can be restarted to prevent compressor damage due to rapid cycling. RESETTING THE UNIT To restore the thermostat to the original factory settings, enter the SYSTEM SETTINGS MENU and set Option 12 to YES. See page 27.
TROUBLESHOOTING 1. My display does not appear. 1a. Check the batteries and battery connections. 1b. Reset the thermostat. 2. The auto fan feature does not operate properly. 2a. Check to see if the correct furnace type is selected under the system settings in options. 3. My display is erratic. 3a. Replace the batteries. 4. The program will not change at my desired setting. 4a. Check that the time is set properly to AM and PM. 4b. Make sure the thermostat is not in permanent override mode. 4c.
5. The heating or cooling will not turn on or off. 5a. Make sure the thermostat is not in permanent override mode. 5b. Wait. There may be as much as a 4-minute delay before the system turns on or off to protect the compressor. 5c. Check circuit breakers and switches to ensure there is enough power to the system. 5d. Replace batteries. 5e. If applicable, make sure the furnace blower door is closed properly. 5f. If your system has 4 wires, ensure the jumper is installed between the RC and RH terminals. 6.
8. The touch screen permanently reads SYSTEM ERROR. 8a. Refer to page 66 for ERROR mode instructions. If ERR message remains after battery replacement, then replace unit. 9. How do I just operate my thermostat manually? 9a. Manual operation instructions begin on page 38.
NEED MORE HELP? Is there help on the web? Yes, visit us at http://www.climatetechnologyproducts.com for more information. Is there someone I can call? Yes. The CTC Technical Support is available from 7 am to 7 pm CST M-F and 8 am to 5 pm Saturday. They may be reached toll-free at 1-800-676-7861.
WIRING DIAGRAMS Number of wires connected depends on the HVAC system requirement. • 4-wire Heat/Cool System (single stage): RH (jumper between RH and Rc/R), Y1, W1, G • 5-wire Heat/Cool System (single stage): RH, Rc/R (remove jumper between RH and RC/R), Y1, W1 G.
Conventional HVAC Systems Optional Jumper RH RC/R Heat 24V Supply Cool 24V Supply C Y1 Y2 W1 W2 W3 H G Cool Stage 1 Cool Stage 2 Heat Stage 1 Heat Stage 2 Heat Stage 3 Humidity Control Fan Control 24VAC Common (if available) 44003-01 r051507 73
Optional Jumper C RC/R 24VAC Supply Y1 Y2 W2 Compressor Stage 1 Compressor Stage 2 Auxiliary Heat Heat Pump Systems E Emergency Heat O B G L H Reversing Valve Cool Reversing Valve Heat Fan Control System Monitor Humidity Control 24VAC Common (if available) Number of wires connected depends on the heat pump system requirement. Not all terminals need to be connected. • Add jumper between W2 and E terminals on systems without an E wire.
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