Honeywell CT3550 manual

Place Bar Code Here 69- 1284- 2 OWNER’S GUIDE ® U.S. Re g istered Trademark Cop y ri g ht © 2001 Hone y well • •All Ri g hts Reserved Honeywell CT3550 PROGRAMMABLE THERMOSTAT Weekda y , Satu rda y and Sunda y Pro g rammable Heat an d/or Cool Low V olta g e ( 20 to 30 V ac ) Thermostat and W allplate Model CT3550 Para pedir estas instruccion[...]

69-1284 — 22 Total comfort temperature m anagement with Smart Response ™ T ec hno lo gy . Con g ratulations! Y ou made a smart choice b y purchasin g y our new Hone y well thermostat the smart thermostat that; • Keeps y ou comfortable b y automaticall y calculatin g exactl y when the furnace or air conditionin g should g o on to have the hous[...]

3 69-1284 — 2 Time Set Program Run Program Hold Temp Set Current Day/Time Day Heat/Cool Settings Wake Leave Return Sleep M18741 RAISES TEMPERATURE SETTING LOWERS TEMPERATURE SETTING DISPLAYS CURRENT HEAT/COOL TEMPERATURE SETTING PROGRAM PERIODS WAKE/LEAVE/RETURN/SLEEP: ENTERS PROGRAMMING MODE FAN KEY SELECTS AUTO/ON SYSTEM KEY SELECTS HEAT/OFF/CO[...]

69-1284 — 24 M18594 Aux Ht System Off Auto WakeLeaveReturnSleep Mon Wait Fan On Auto In Room Humid Outdoor Filter AM Hold for Repl Batt Recovery Cool Tue WedThuFriSatSun Days Set Program Set Day/Time Temporary Setting Em Heat Em Ht DISPLAYS EITHER CURRENT TIME OF DAY OR PROGRAM TIMES SHOWS THERMOSTAT IS IN THE SET DAY/TIME MODE SHOWS TEMPERATURE [...]

5 69-1284 — 2 STEP 1. PREPARE FOR INSTALL ATI ON ❑ Check T able 1, the compatibilit y cha rt, to mak e sur e the the rmos tat is comp atib le wi th y our s y stem. If y our s y stem is not compatible, call Hone y well Customer Relations Center , to ll-free, 1-800-468-1502. T able 1. Compatibility Chart. a Compatible with 2-wire Hone y well and [...]

69-1284 — 26 STEP 2. REMOVE OLD THERMOSTAT ❑ T e st y our heatin g and coolin g s y stem s to mak e sure the y work properl y . If either s y stem does not work, contact y our local heatin g /air-conditionin g dealer . T o avoid compressor dama g e, do not operat e the coolin g s y stem when outdoor temperature is below 50 ° F (10 ° C). ❑ T[...]

7 69-1284 — 2 Replacing a Thermostat th at has Three Wires If y ou have three wires for a heatin g onl y s y stem and c an operate the fan us in g the fan O N switch this thermostat works with y our s y stem. However , some hot water (zoned) heat in g s y stems also have three wires. Y our thermostat will work onl y if y ou install an isolatin g [...]

69-1284 — 28 STEP 4. WIRE WALLPLATE TERMINALS IMPORT ANT All wiring must comply with local codes and ordinances. If unsure about household wiring procedures, call your local heating/air-conditioning contractor. Refer to the labels y ou placed on the wires when y ou removed th e old thermostat ( see illustration). ❑ Match the letter of y our old[...]

9 69-1284 — 2 T able 2. T erminal Designations on Old and New Thermostats a If both RH and R t erminals are present on existin g thermostat, remove jumper and connect Rh to R and R to Rc. b Do not connect both O and B when wirin g to a sin g le sta g e heat pump. Connect O to O. T ape off B. c T ape off end of the wire with electrical tape and pu[...]

69-1284 — 21 0 ❑ If the thermostat is alread y mounted on the wall, remove the thermostat b y placin g y our thumb between the thermostat and wallplate and pullin g the thermostat up and awa y as shown. When the batteries are runnin g low , a REP L BA T mess a g e flashes for one to two months bef ore the batteries run out completel y . Replace[...]

1 1 69-1284 — 2 STEP 7. CUSTOMIZE YOUR THERMOSTAT Y our Hone y well CT3550 t hermostat comes preset to the m ost commonl y used settin g s. The settin g s are: — Gas or oil fo rced air furna ce. — Smart Response techno lo gy on. — T em perature ° F. — 12-hour clock format. Y ou can chan g e an y or all of t hese settin g s. IMPORT ANT Al[...]

69-1284 — 21 2 T o chan g e y our s y stem t y pe: ❑ Press until displa y shows y our furnace or boiler t y pe. ❑ Press Time to move to next feature or to return t o main displa y . Smart Response ™ Tech nology (Feature Numb er 13) Smart Response techno lo gy options are: — 0 = Smart Response technolo gy on (preset). — 1 = Smart Respons[...]

13 69-1284 — 2 Factory Set F unction (Feature Num ber 37) Do not chan g e this sett in g . STEP 8. SET THE CLOCK Set Current Day and Time NOTE: On initial power-up, the screen flashes 1:00 pm until y ou press a k e y . ❑ Press . ❑ Press until screen shows current da y . ❑ Press time or unt il screen shows current time. (T appin g the will a[...]

69-1284 — 21 4 T able 3 can be helpful when plannin g y our schedule of time and temperature settin g s. The thermostat default settin g s are shown in parentheses ( ). T able 3. Persona l Progr ammin g T able. a Y our heatin g setpoints cannot be hi g her than 90 ° F (32 ° C) or lower than 40 ° F (4. 5 ° C). b Y our coolin g setpoints cannot[...]

15 69-1284 — 2 ❑ Press or until the desired wake temperature displa y s. The setpoint temperature r an g e is 40 ° F to 90 ° F (4.5 ° C to 32 ° C) for heati n g and 45 ° F to 99 ° F (7 ° C to 37 ° C) for c oolin g . ❑ Press to switch between setp oints. NOTE: Pro g ram tim es are the same for heatin g and coolin g . ❑ Press or unt i[...]

69-1284 — 21 6 STEP 10. OPERATING Y OUR THERMOSTAT Change Temperatu re Setting Until the Next P rogram Per iod (Temporary Chan ge) ❑ Press or until the screen shows the desired temperature settin g . NOT E: The te mp or ar y temperature settin g is displa y ed for about 3 seconds a nd then the room tem perature is dis- pla y ed. T emporar y app[...]

17 69-1284 — 2 STEP 11. SET THE FAN AND SY STEM KEY Set the Fan K ey Fan On: The f an runs continuousl y . Use for improved air circulation or more ef ficient central air cleanin g . (In a heat onl y s y stem, the fan runs continuousl y onl y if the fan rela y is connect ed to the G thermost at terminal). Press until displa y shows On. Fan Auto: [...]

69-1284 — 21 8 If You Have a Problem T able 4. S olution Guide. If... T hen… Dis pl a y does not a ppear . • Make sure the batteries are installed correctl y . • Make sure the thermostat is mounted and latched on the wallplate. Mount and latch the thermostat on the wallplate if it is not. T emperature settin g s will not chan g e (example; [...]

19 69-1284 — 2 Toll-Fr ee Customer As sistan ce Please read and f ollow the provided instructions f or this thermostat. For additional information, g o to www . hone y wel l. co m/ y ourhome or call the Hone y well Customer Relations Center at 1-800-468-1502. The Center hours are Monda y throu g h Frida y , 7:00AM to 5: 30PM Central Time. Before [...]

69-1284 — 22 0 SMART RESPONSE ™ TECHNOLOGY Y our CT3550 is act uall y a small com puter . The Smart Respons e technolo gy calculates the correct time of da y to turn on y our heatin g or coolin g s y stem. Smart Res ponse technolo gy considers t he followin g information. • Air temperature. • W all temperature. • The time of da y when y o[...]

21 69-1284 — 2 WIRING DIAGRAMS THERMOSTAT 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 1 HEATING RELAY OR VALVE COIL B R RC OW Y G 2-WIRE HEAT-ONLY (JUMPER INTACT) M10616 M10617 THERMOSTAT 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 1 4-WIRE HEAT/COOL (JUMPER INTACT) HEATING RELAY[...]

69-1284 — 22 2 Notice: This thermo stat is a Class B di g ital apparatus that complies with Canadian Radio Interference Re g ulations, CRC c. 1374. M10619 THERMOSTAT 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 1 1 5-WIRE HEAT/COOL (JUMPER REMOVED) HEATING RELAY OR VALVE COIL COOLING CONTACTOR COIL FAN RELAY B R R[...]

23 69-1284 — 2 Limited One-Year Warranty Hone y well warrants this product, excludin g batter y , to be free f rom defects in the workmanship or materials, under normal use and service, for a period of one (1) y ear from the date of purchase b y the consumer . I f, at an y tim e dur in g the warrant y period, the product is defective or malfuncti[...]

Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers. 69-1284 — 2 J.H. Rev . 04-01 www .hone y well.com/ y ourhome Home and Building Control Home and Building Control Honeywell Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9[...]