Honeywell CT2800 manual

69-1638-1 INSTALLATION AND PROGRA MMING INSTRUCTIONS ® U.S. Registered T rademark Copyright © 2003 Honeywell Internat ional Inc. All Rights Reserved CT2800 Programmable Thermostat Wel co me to the world of comfort and ene rgy savings with your new Honeywell Programmable Thermostat. Y our new thermostat will automatically control the te mperature [...]

69-1638—1 2 MERCURY NOTICE If you are removing an old thermostat t hat contains mercury in a sealed tube (Fig. 1), do not place the old thermostat in the trash. Contact your local waste management authority for instructions regarding recycling and the proper disposal of the old thermostat. Installation INSTALLATION Verify You Have Correct Thermos[...]

3 69-1638—1 Step 1. Prepare for Installation 1. Carefully unpack your new thermostat. Save your receipt and make sure you have the following parts: • Thermostat and mounting plate • Labels • Screws and anchors • Installation and Programming Instructions 2. Gather the needed tools and supplies listed below . 3. Make sure that your heating [...]

69-1638—1 4 Step 2. Remove Old Thermostat Fig. 2. a. Tu r n o f f p o w e r to the heating/cooling system, either at the furnace or at the fuse/circuit breaker panel. b. Remove the cover of your old thermostat (Fig. 2). c. Unscrew and remove the old thermostat’ s mounting plate from the wall, but do not disconnect the wires . d. Inspect old the[...]

5 69-1638—1 Step 3. Install Mounting Plate Fig. 5. a. Separate the mounting plate from the thermostat using a coin, as shown in Fig 5. b. Position the mounting plate on the wa ll. Be sure the mounting plate is flush against the wall and none of the w ires are trapped behind it. c. Level the mounting plate and use a pe ncil to mark the center of t[...]

69-1638—1 6 Step 4. Set Thermostat for Y our Type of Heating System IMPORT ANT : Setting your thermostat cor- rectly for your type of heating system allows it to maintain accurate temperature control, minimize swings in the tem- perature of the room, and efficiently run the fan. a. Use the FUEL SWITCH on the back of the thermostat to set your new[...]

7 69-1638—1 Heating System Table Step 5. Wire Thermostat Terminals T ype of System D I P S w i t c h e s 1 and 2 Fuel Switch W arm air , gas, or oil heating system with an efficiency rating under 90%. (The furnace efficiency rating should be on the furnace.) Use factory setting 1–On; 2–On F High-efficiency furnace such as a 90% or greater AFU[...]

69-1638—1 8 Step 6. Mount Thermostat Fig. 1 1. Fig. 12. e. Align the tabs at the top of the thermostat with the tabs at the top of the mounting plate (Fig. 1 1). f. Press the lower edge of the case to latch the bottom of the thermostat (Fig. 12) M2013 0 M2013 1[...]

9 69-1638—1 Step 7. Install the batteries Special Wiring Instructions Clock thermostat with C or C1 terminals A clock thermostat has one or two extra wires attached to the C or C1 terminals that allow the clock to operate. These wires are not used during the installation of your new CT 2800 Thermostat and must be insulated from each other to avoi[...]

69-1638—1 10 Six or more wires If your old thermostat has six or more wires (excluding cl ock wires attached to the C or C1 terminals), your heating/ cooling system is most likely a variation of a heat pump or multistage system. Y our CT2800 Thermostat will NOT work with such systems and should be returned to the place of purchase. See the thermo[...]

1 1 69-1638—1 Old thermostat terminals that do not match new t hermostat terminals Use the table below to wire the new thermostat. *Remove factory-installed jumper between R and Rc terminals in 5-wire systems. Old Thermostat Te r m i n a l Connect to New Thermostat T erminal Description R, RH, 4, V R* Power Rc, R Rc* Power for cooling W, W 1 , H [...]

69-1638—1 12 PROGRAMMING Faceplate Illustration and Description Descriptions Fig. 16. 1 Fan switch–Selects automatic fan operation or fan on. 2 Set Schedule–Puts the thermostat into programming mode. 3 Set Clock/Day–Sets the clock and day . 4 T ime Ahead and Back–Sets the time ahead and back. 5 Program periods–Current program period or [...]

13 69-1638—1 Step 1. Set Current Time and Day Step 2. Learn About Programming Features Y ou r CT2800 Thermostat allows you to program schedul es for both a heating seas on and a cooling season. • During the heating season, you will want to set t he normal room temperature higher and the energy-saving temperature lower . • The reverse is true [...]

69-1638—1 14 Programming Tips • Y ou do not need to program times and temperatures for all program periods. If you decide not to program your thermosta t, it automatically controls heating at 68 ° F (20 ° C), and cooling at 78 ° F (26 ° C), 24 hours a day . If you decide not to program weekend schedules, the tem perature that is prog rammed[...]

15 69-1638—1 Step 3. Program Heating Schedule a. Write in the times and temperatures that you want to program for your heating schedule. Heating Schedule Program Period W A KE LEA VE RETURN SLEEP Suggested Settings Ti m e 6:00 AM 8:00 AM 6:00 PM 10:00 PM T emp 70°F (21°C) 62°F (16.5°C) 70°F (21°C) 62°F (16.5°C) Weekday (Mon–Fri) Time Te[...]

69-1638—1 16 f. Press to display a blank schedule for the next pro- gram period (Fig. 22) and repeat steps d. through f. for each weekday program period. Fig. 22. g. Press until the weekend sc hedule is displayed (Fig. 23). h. Set the Saturday and Sunday WAKE time by pressing Tim e until the desired time is displayed. Fig. 23. i. Set the Saturday[...]

17 69-1638—1 Step 4. Program Cooling Schedule a. Write in the times and temperatures you w ant to program for your cooling sched ule. b. Set the System switch to COOL. c. Repeat steps 3c. through 3k. to progra m the weekday and weekend cooling schedule. Step 5. Check System Verify that your heating system works Verify that your cooling system wor[...]

69-1638—1 18 OPERATION Change Clock for D aylight/Standard Time a. Press once. The time is d isplayed. b. Press and hold Tim e until the correct time is displayed. c. Press once. The current time and day and cur rent temperature display . d. Set the System switch to Cool, and the Fan switch to Auto. e. Pres s Te m p until the setting is 10°F (6?[...]

19 69-1638—1 Set Fan and System Switches The switches on the bottom of the thermostat faceplate control th e operation of your fan and the heating and cooling system. Set the Fan switch first and then set the System switch. Replace Batteries As the batteries run low , your thermostat shows the following in the digit al display: a. Make sure that [...]

69-1638—1 20 d. Install new batteries. Make sure that positive and negative terminals are oriented as marked inside batter y case. e. Close the battery door and set the System switch to HEA T or COOL. NOTE: If “bAt Lo” continues to display af ter replacing the batteries, set System swit ch to OFF , insert batteries back- ward, wait for five t[...]

21 69-1638—1 Hold a temperature indefinitely Use the Hold T emp feature when you want to maintain a constant temperature indefinitely , such as when you go on vacation. a. Press . “HLd ” is displayed (Fig. 28). b. Pres s Te m p un til the desired temperature is dis- played. NOTE: T o cancel the hold, press . Fig. 28. Check the current program[...]

69-1638—1 22 FREQUENTLY ASKED QUESTIONS b. Press simultaneously . A blank program schedule is displayed and the program is canceled (Fig. 31). Fig. 31. Change a program permanently Follow steps for programming heating schedule or programming cooling schedule. If... Then... Display does not come on • Make sure the batteries are fresh and install[...]

23 69-1638—1 CUSTOMER ASSISTANCE Visit us on the W eb at www .honeywell.com/yourhome or call Honeywell Customer Care at 1-800-46 8-1502. Before you call, ple ase have the following informatio n available: — Thermostat model number and seria l code (located under the battery co ver) — T ype of heating/cooling syst em (hot water , warm air, oil[...]

69-1 6 38—1 J.S. Re v . 10 - 03 Printed in U.S.A. ww w .hon e yw e l l.com / you r home Automation and Control Solutions Honeywell International Inc. Hone ywell Limi ted-Honeywel l Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 NOTICE: This equipment is a Class B di gital apparatus, that co[...]