Honeywell RTH7400D manual

OWNE R’S GUIDE Patents Pending ® U.S. Regi stered Trademark © 2004 Hone ywell Internati onal Inc. All Right s Reserved 69-1726-1 RTH 7400D Programmable T hermostat The R TH7 40 0D T her mos tat p rov id es elec tro ni c c on tro l of 24 V ac hea ting an d cool ing sy stem s or 75 0 mV he ating sy stem s. For as sist anc e wit h y our H one ywel[...]

69-1726 —1 2 Contents Prepare fo r Ins tallat ion ....... .... .... .... ... ........ .... .... .... ... ........ .... ... 3 Follo w I mp ortant In struc tio ns ..... .... ... .... .... .... ........ ... .... .... .... ... 5 Remo ve O ld T he rmos tat .... ........ .... ... .... .... ........ .... ... .... .... ....... 6 Follo w Spec ial In s tru[...]

3 69-1726—1 Step 1. Prep are for Inst allation 1. Check that th e follo wing it ems are incl uded: If any o f the items s hown ab ove are mi ssing , call Honeywel l Customer Care at 1- 800-468-150 2 befor e retur ning the t hermost at to the stor e. CAUTION TURN OFF POWER to system at the furnace, or at the fuse/circuit breaker panel before you b[...]

69-1726 —1 4 Step 1 . Prepare for I nstallation (Cont) 2. Check tha t you have ever yt h ing requir ed f or the ins talla tion : • Two AA alk a li ne ba t te ri es • N o. 2 Phill ips scr ewdriv er and st andard pocket s cre wdri ver •D r i l l • D rill bit—use 3/16 in. for dr ywall; us e 7/32 in. for plas t er • Le vel (opt ional ) ?[...]

5 69-1726—1 Step 2. F ollow Import ant I nstructions 1. Do not connec t the wires to t he new thermost a t based on wir e color because da mage can occur to the heat ing and/ or cooli ng system. These In stalla tion Inst r ucti ons explain late r how to use the enc l osed wir e label s to cor rectl y mark the wire s connec ted to your old thermos[...]

69-1726 —1 6 Step 3. Re move Old Therm ostat 1. T urn off power a t the heati ng and/or cooling sys tem or fus e/cir cuit break er pa nel. 2. Remov e the cov er from the old thermos tat. 3. Remov e the ol d thermost at from the wal l or wall- plat e. Do not remove the wir es. MERCUR Y NOT ICE If yo u are re pla c ing a th er mosta t t h at con ta[...]

7 69-1726—1 St ep 4 . Foll ow Sp ecia l Inst ructio ns 1. If you have two C and/or C1 wires conne cted t o your ol d thermost at, do not con nect them to you r new t hermostat . 2. Disco nnect the C and/or C1 wires. Ma ke sure they do not tou ch each other or any other wires . 3. W rap the bare end of each C and/or C1 wire with elec t ric al t ap[...]

69-1726 —1 8 Step 4. F ollow Sp ecial I nstruction s (Cont) 4. If y ou have onl y one C and/or C1 wire co nnected to your ol d thermost at, connec t t his wire to C on the new t hermostat . Y C R W OLD THERMOST A T WIRE HOLE M22223 CONNECT T O THE "C" ON THE NEW THERMOST A T WIRE SCREW TERMINAL LETTER DESIGNA TION G[...]

9 69-1726—1 Step 4. F ollow Sp ecial I nstruction s (Cont) 5. If you fi nd any wi res not connec ted to your old ther most at, do not conne ct them to your new ther most at. 6. W rap the end of the wir es that ar e not con nected with elec trical tape. Y G R C R OLD THERMOST A T WIRE HOLE WIRES NOT CONNECTED – DO N OT C ON NEC T TO NEW THERMOST[...]

69-1726 —1 10 Step 5. Label Old Thermo stat Wires 1. As you disc onnec t each wire, use t he enclose d wire label s to wrap a wire lab el around eac h wir e that matches the l etter desi gnation. Do not all ow the wire s to f all into the wa ll o pening after the wi res are disc onnected. 2. Remov e a ny remaining p art o f the old thermos tat fr[...]

1 1 69-1726—1 Step 6 . Mount New Wallplate to Wall 1. Separ ate the wal lplat e from the ther m ost at as shown. THERMOSTAT WIRE HOLE M22267 WALLPLATE[...]

69-1726 —1 12 S te p 6. M ou nt Ne w W al l plat e to W all (C o nt ) 2. Pass the l abeled wires t hrough the wire hole on the wa llpla te. M22279 WIRE HOLE W ALL OPENING WA L L PLA TE LABELED WIRES[...]

13 69-1726—1 S te p 6. M ou nt Ne w W al l plat e to W all (C o nt ) 3. Posit ion the wall plate on the wall wit h the arrow point ing up. Level the wallp l ate (f or appear ance only ) and mark the two mount ing hol es with a penci l . M22292 WA LL P L ATE LEVEL PLACE LEVEL ON SUPPORT T ABS MARK MOUNTING HOLES (2)[...]

69-1726 —1 14 S te p 6. M ou nt Ne w W al l plat e to W all (C o nt ) 4. Mov e the wal lplat e aside and dr ill hole s at the loca t ions m arked on t he wall. Drill 3 /16 in. ho les for dr y wa ll or 7/ 32 in . ho l es fo r pl a st e r . 5. T ap the wal l anch or s i nt o the dr il led hol es unt il ev en with the wal l surfa ce. 6. Posit ion th[...]

15 69-1726—1 Step 7. Co nnect Wires to New Wallplate 1. Match the labe l ed wi r es t o the l ette r desi gnations on t he wallplat e. 2. Selec t th e correct let ter designa t ions to f oll ow for your s ystem. If y ou have a st andard heat ing and/ or cool i ng syst em, use the CONVENTIONAL le tter desi gnations. If you ha ve a he at pump syst [...]

69-1726 —1 16 Step 7. Connect Wires to New W allplate (Cont) 3. If wires are to be connect ed to both Rc and R, loos en t he Rc and R screw ter minals and remove the metal j umper wi re. 4. If onl y one of the termi nals, Rc or R, is t o be connec t ed, lea ve the meta l jumper wire i n place. M22295 MET AL JUMPER WIRE SCREW TERMINALS TERMINAL BL[...]

17 69-1726—1 Step 7. Connect Wires to New Wal l plate (Cont) 5. Loosen t he screw ter m inals. Insert the labeled wire s int o the holes on t he side o f the t erminal bloc k that match the lett er design at ions . T ight en the s cre w termi nal s. 6. If any of the l abeled wires do not m atc h the letter desi gnations, see n ext p age f or wi r[...]

69-1726 —1 18 S tep 7. Connect Wires t o New W allplate ( Cont) 7. Comp are lette r designa t ions on you r old and new ther most ats . Use the infor m ation bel ow if you are wiring a CONVENTIONAL System . Use the inf ormati on on page 2 0 if you a re wiri ng a He at Pump sy stem. Do not connec t more than one wi re to each ter minal. Be su re t[...]

19 69-1726—1 Step 7. Connect Wires to New W allplate (Cont) 1 M22246 If wires will be connected to both R C and R on the new thermostat, remove metal jumper wire between R C and R. Leave metal jumper wire in place if only one of the terminals, R C or R, will be connected on the new thermostat. If wires were connected to both R and RH terminals on[...]

69-1726 —1 20 Step 7. Connect Wires to New W allplate (Cont) 8. Comp are lette r designa t ions on you r old and new ther most ats . Use the infor m ation bel ow if you are wiring a HEA T PUMP system. Be sure to read the note refe r enced in t he numb ered t riang les ab ove. These numbered notes appear on the next pag e. L C Y R RC VR or V or M2[...]

21 69-1726—1 Step 7. Connect Wires to New W allplate (Cont) 1 M22245 Leave metal jumper wire between RC and R in place. If the old thermostat had separate wires on both the V and VR, some system modification is required. Call your local heating and cooling contractor for assistance. If the old thermostat had wires on both O and B, be sure to atta[...]

69-1726 —1 22 S tep 7. Connect Wires t o New W allplate ( Cont) 9. Push exce ss wire back into t he wal l open i ng. Keep wire s in the shaded area. WA LL P L ATE M22297 W ALL OPENING WIRE SHADED AREA[...]

23 69-1726—1 Step 8. Install Batteries 1. Inst a ll two f r esh AA alkalin e batt eries on the bac k of the th ermos tat as mar ked on the therm ostat . 2. Remov e t ab lab el e d “Remove during i nst allation” in t he l ower ri ght co r ner of the t herm ostat back . M22259 BACK OF THERMOST A T BA TTERY HOLDER BA TTERIES (2) REMOVE DURING IN[...]

69-1726 —1 24 Step 9. Attach New Ther mostat to Wa llplate 1. Ali gn the screw block s with the pi ns on the back of the th ermost at . 2. Push the thermost at straight onto the wal lpla te unti l it sn aps i nto pl a ce. 3. T urn on the power at the he at ing and/or c ooling syst em or fuse/c ircuit breaker panel. If t he wires inter fere with m[...]

25 69-1726—1 Step 10. Se t the Calendar This thermost at i s desi gned to aut omatical ly ke ep curr ent ti me and day in memor y for up t o ten years , under nor mal use, on ce t he cal endar is set . When the the rmosta t is fir st powered , the disp l ay is re ady to set the cal endar . 1. Use Up or Down arro w butt on to set t he Month. 2. Pr[...]

69-1726 —1 26 Step 10. Set the Calendar (Cont) 6. Press the Done button to advance to t he T ime. 7. Use the Up or Down arrow but ton to set the T ime. 8. Press the Done button . DONE BUTTON ADV ANCES TO HOME SCREEN UP AND DOWN BUTTONS CHANGES TIME M22303 PM C loc k M o r e Do n e[...]

27 69-1726—1 Step 1 1. Con figure Installer Setup 1. Use the In stal ler Set up Menu to match your new ther most at to your heatin g and/o r cooling sys tem. Foll ow the step s i n thi s secti on to set up your ther most at. 2. Press and rel ease the System butt on. S y ste m & F an S chedul e C loc k & M o r e F a n A u t o T ue S y stem[...]

69-1726 —1 28 St e p 1 1. Configure Inst aller Setup (Cont) 3. Press and ho ld t he cent er butt on for appr oximately fi ve secon ds, until the screen cha nges. 4. Releas e the center button when t he display on your t hermost at mat ches the displ ay below . S y ste m & F an F an Use E d i t C ance l D o n e F a n A u t o S y stem A u t o E[...]

29 69-1726—1 1 1. Conf igure Ins t a l ler Set up (Cont) 5. Press the Up or Down ar rows to select your set ting for Inst all er Set up Number 01 20 bel ow . 6. Aft er yo u select your set t ing, p ress t he Next button to go to th e next Insta l ler Setup Number . 7. Foll ow step s 5 and 6 t o set Ins tal ler Se tup Number s 0130, 0140 a nd 0150[...]

69-1726 —1 30 St e p 1 1. Configure Inst aller Setup (Cont) 8. Press the Up or Down ar rows to select your set ting for Inst all er Set up Number 01 70. 9. Aft er y ou select y our set tin g, pr ess the Ne xt but ton to go to th e next Insta l ler Setup Number . M22308 0170 System Type Selection 1 - Heating and Cooling (Conventional) -- Gas, oil [...]

31 69-1726—1 St e p 1 1. Configure Inst aller Setup (Cont) 10. If yo u do not have a num ber 0180 on the lef t si de of your display , g o to t he next p age. 11 . If you have a number 018 0 on the lef t side of your disp l ay , pre ss the Up or Down ar row to s elect yo ur sett ing f or I nst al ler Setup Number 0180. 12. Aft er y ou select y ou[...]

69-1726 —1 32 St e p 1 1. Configure Inst aller Setup (Cont) 13. If yo u do not have a num ber 0190 on the lef t si de of your display , g o to t he next p age. 14. If you have a number 019 0 o n the l eft si de of your disp l ay , pre ss the Up or Down ar row to s elect yo ur sett ing f or I nst al ler Setup Number 0190. 15. Aft er y ou select y [...]

33 69-1726—1 St e p 1 1. Configure Inst aller Setup (Cont) 16. If yo u do not have a num ber 0240 on the lef t si de of your display , g o to t he next p age. 17. If you have a number 024 0 o n the l eft si de of your disp l ay , pre ss the Up or Down ar row to s elect yo ur sett ing f or I nst al ler Setup Number 0240. 18. Aft er y ou select y o[...]

69-1726 —1 34 St e p 1 1. Configure Inst aller Setup (Cont) 19. Press the Up o r Down arrow to select your setti ng for Inst all er Set up Number 03 20. 20. Aft er y ou select y our set tin g, pr ess the Ne xt but ton to go to th e next Insta l ler Setup Number . M22311 0320 Temperature Indication Scale 0 - Fahrenheit Temperature Display. 1 - Cel[...]

35 69-1726—1 St e p 1 1. Configure Inst aller Setup (Cont) 21. Press the Up o r Down arrow to select your setti ng for Inst all er Set up Number 03 30. 22. Aft er y ou select y our set tin g, pr ess the Ne xt but ton to go to th e next Insta l ler Setup Number . M22312 0330 Daylight Savings 0 - Daylight Savings is Off -- clock will not adjust for[...]

69-1726 —1 36 St e p 1 1. Configure Inst aller Setup (Cont) 23. Press the Up o r Down arrow to select your setti ng for Inst all er Set up Number 05 00. 24. Aft er y ou select y our set tin g, pr ess the Ne xt but ton to go to th e next Insta l ler Setup Number . M22313 0500 Furnace Filter Change Reminder 0 - Furnace Filter change reminder is Off[...]

37 69-1726—1 St e p 1 1. Configure Inst aller Setup (Cont) 25. Press the Up o r Down arrow to select your setti ng for Inst all er Set up Number 05 30. 26. Aft er y ou select y our set tin g, pr ess the Ne xt but ton to go to th e next Insta l ler Setup Number . M22314 0530 Adaptive Intelligent Recovery TM 0 - Conventional recovery -- system star[...]

69-1726 —1 38 St e p 1 1. Configure Inst aller Setup (Cont) 27. Press the Up o r Down arrow to select your setti ng for Inst all er Set up Number 06 40. 28. Aft er you select y our setti ng, p r ess t he Done ke y to exit the Instal ler Setup and sav e your se ttings. 29. Co ng r a tu la ti on s ! T h e in s tal l a ti on of the th e rm os t at i[...]

39 69-1726—1 Get to Know Y our Thermost at Buttons Thermostat M22316 UP ARROW BUTTON RAISES TEMPERATURE SETTING OR MAKES SELECTIONS IN OTHER SCREENS DOWN BUTTON LOWERS TEMPERATURE SETTING OR MAKES SELECTIONS IN OTHER SCREENS CLOCK & MORE BUTTON SELECTS TIME AND FURNACE FILTER INFORMATION SYSTEM & FAN BUTTON SELECTS FAN AUTO OR ON SELECTS [...]

69-1726 —1 40 Get to Know Y our Thermostat Display Dis p lay M22317 SHOWS CURRENT DAY OF WEEK TEMPERATURE SETTING CURRENT TIME CURRENT SYSTEM SETTING CURRENT FAN SETTING INDICATES THERMOSTAT IS "CALLING FOR COOL OR HEAT" Schedule he C l ock & More M M on S y stem A ux[...]

41 69-1726—1 Set System Setti ng Set System S etting Press the System butt on to sele ct Heat, Of f or Cool: Heat —T hermost at c ontrols the h eating sy stem. Off —Heat ing an d coolin g s ystems ar e both off. Cool — Thermost at cont rols the c ooling s ystem. Em. Heat (Heat Pump Syst ems wi th Au xiliary Heat) —Thermost at control s em[...]

69-1726 —1 42 Set Sys t e m Setting (Cont) Set Fan Sett ing 1. Press System & F an button. 2. Press the Fan button to select Auto or On: Auto — N o rmal setti ng for most homes . Th e fan runs onl y when the heat ing or cool ing syst em is on. On —The fan r uns continu ously . Use th is setti ng for improved ai r circu lation or f or more[...]

43 69-1726—1 Progr am Y our Heati ng and Cooli ng Schedule Y our ther mostat can contro l up t o f our dif fer ent sc hedule peri ods Monda y through Fr iday and Satu rday and/ or Sunday : Wa ke — Pe riod when you awaken a nd want your hom e at a comfor table temper ature . Leave — Period when yo u are away from home and want an en ergy-savi [...]

69-1726 —1 44 Program Y our He ating and Cooling Schedu le (Cont) 2. Press the Edit button . Go B ack Ed i t Vi ew M22331 Mon T ue W ed Th u Fri Sat S u n[...]

45 69-1726—1 Program Y our He ating and Cooling Schedu le (Cont) 3. Mond ay thr ough Fri day fl ashes. Press the Sel ect Day butt on to selec t Monday thr ough Frida y . The days sel ected are schedu led with the sam e times and t emperatures . Chec kmarks a ppear n ext to the days sel ected. Y ou can select Mon-Fr i as a block of days and sele c[...]

69-1726 —1 46 Program Y our He ating and Cooling Schedu le (Cont) 4. Press the Next S tep button. Once pressed , W ake fl ashes to show it is selecte d. 5. Press t he Next S tep butt on to s elect the W ake time . 6. Use the Up and Down ar row butt ons to chang e the tim e. 7. Press the Next S tep button to s elect t he Heat i ng temper at ure. 8[...]

47 69-1726—1 Program Y our He ating and Cooling Schedu le (Cont) 12. When compl ete, press the Done but ton. “Saved” appear s on the displ ay to indi cate cha nges are being saved to t he day( s) sele cted. 13. T o set a program sch edule for Satur day and Sunday , repeat steps 1 through 12. T o s elec t Satu rd ay a nd/or Su nday to s chedul[...]

69-1726 —1 48 Set T ime Set Tim e 1. Press Clock & More butt on. 2. Use the Up and Down arr ow butt ons to set the curr ent t ime . 3. Press the Done button . The curr ent day of t he we ek should al ready be set correctly . I f not , s ee S tep 1 1, Confi gure Ins talle r S etu p. M22335 Do n e PM Go B ack T ue[...]

49 69-1726—1 Se t T emp era tu re Ov er r id es Hold Temperature Until (Temporary Hold) Hold te mperatur e t emporar i ly unt il th e next scheduled peri od time. 1. Press the Up o r Down arrow buttons ne xt to the temper at u re you want to adjus t. “T emporary” appear s on the displ ay abo ve the set te mperatur e. 2. Press the Use Schedule[...]

69-1726 —1 50 Set T em perature Ov errides (Cont) Permanent Hold Permanent Hol d changes the temp erature set t ing unt il Permanent Hol d is canc elled . 1. Use the Up or Down arrow but tons to set the temper at ure you want during the hold. 2. Press t he Hol d button. “Permane nt Hold ” shows on the di splay . 3. Press the Use Schedule butt[...]

51 69-1726—1 Use Y our Filter Timer The Fi l ter T imer noti fies y ou whe n to ch ange y our fu rnace filte r . Reset Filt er Ti mer 1. “Change Filter ” app ears on t he displ ay when the fil ter ti me r exp ir es. 2. Press the Reset b utton to r esta r t t he filte r timer . See S tep 1 1 to turn the Fil ter T imer Chang e Reminder f eatur [...]

69-1726 —1 52 Use Y our Filter T imer (Cont) View or Reset The Remain ing Change Filt er Time 1. Press the Clock & More button. 2. Press the Next bu tton. 3. Press the Reset button to Restart the filt er timer , if desi r ed. 4. Press the Done button . See S tep 1 1 to turn the Fil ter T imer Chang e Reminder f eatur e on or off . R eset D a [...]

53 69-1726—1 Understand T emp erature Re covery F eature Y o ur therm ostat co mes with a featur e calle d Ada ptive Intellig ent Reco ver y™, whi c h eli min ates al l gu esswor k when s ett ing yo ur sch edule. H ow lo ng does it t ake t he fur n ace t o warm y our hou se in th e morn ing b efor e you ge t ou t of bed or how lon g doe s it ta[...]

69-1726 —1 54 Replace Ba tteries 1. When t he LO Batt er y indi cator is flashin g, repla ce the bat teri es promptly wit h two fresh AA alkal ine batt eries . 2. Remov e ther most at from the wal lplat e by pulling str aight out . M22322 M22323[...]

55 69-1726—1 Replace Batter ies (Con t) 3. Remov e the ol d batter ies and inser t two fres h AA alka l ine batteries, as marked on t he ther most at. M22259 BACK OF THERMOST A T BA TTERY HOLDER BA TTERIES (2)[...]

69-1726 —1 56 Replace Batt eries ( Cont) 4. Ali gn the screw block s with the pi ns on the back of the th ermost at . 5. Push the thermost at straight onto the wal lpla te unti l it sn aps i nto pl a ce. WALLPLATE M22299 TERMINAL SCREW BLOCK PINS ON BACK OF THERMOSTAT[...]

57 69-1726—1 Review Battery Tips 1. Replac e the b at ter ies a s soon as LO Batt f lashe s in the di splay . The LO Battery i ndicat or flas hes in the disp l ay on e month befor e the batteries run d own com p l et el y . 2. Always use fr esh AA a lkaline batt eries. Non-alka- li ne bat t erie s do not last a s long an d can l eak, causi ng t h[...]

69-1726 —1 58 Buil t-in C omp ress or P rotec tion The R TH7400D Th er mos tat has bu i lt -in compr essor prot ectio n (m inimum- off timer ) that preve nts th e com pressor fro m restar t ing t oo early af ter a shutdown. The mini m um-of f tim er is activ at ed af t er the compr essor turn s o ff. If t here is a call dur ing the mi nimum-of f [...]

59 69-1726—1 T rou bl esh oot ing Ti p s If . . . T hen . . . Display is bla nk. Chec k that fr esh AA alka line bat ter ies are in st alle d as marked on the ther m ost at . T em p er a tur e set ting s do not change . Chec k that th e tempe ratu re s ettin gs are: • Heat i ng 40° F t o 90°F (4.5 °C to 32°C). • Cool i ng 50° F t o 99°F[...]

69-1726 —1 60 Canno t set Sy stem se tting to Cool. Chec k Insta ller Set up Num ber 0170, Heat i ng an d/or C ooli ng Sy stem T ype; mak e sur e the setti ng matc hes the instal l ed heat i ng and/ or co oling sy stem. “Heat On” is not shown in the display . Set th e System settin g to Heat and set th e te mperat ure sett i ng abov e the roo[...]

61 69-1726—1 Both the heat ing and cooling syst ems a re run ning at the sa me ti me. Chec k Insta ller Set up Num ber 0170, Heat i ng and/o r Coolin g Syste m T ype, and make sure th e setting matche s the insta lled heat i ng and/ or co oling sy stem. Chec k and make sure the bare p ortio ns of th e wi res ar e not touchi ng. Heati ng s ystem i[...]

69-1726 —1 62 C ustomer As sist ance For assi sta nce with your Honeywe ll prod uct, please vi sit www .honey well.com/ yourhome or call Honeywel l Customer C are toll fr ee at 1-800- 468-1502 .[...]

63 69-1726—1 Limited On e-Y ea r Warranty Honeywel l warr ants this pr oduct, ex cluding bat tery , to b e free from de fec ts in the wor kmans hip or materi als, und er normal use and servi ce, for a period of one ( 1) year from the date of pur chase by the c onsumer. If, at any time dur ing the wa rrant y period, th e pr oduct i s defect ive or[...]

69-1726 —1 G .H. 0 8-04 www .h oneywell.com/your home Auto mat ion a nd Contr ol S olut ion s Hone ywell International Inc . Honeywell Limited-Honey well Limitée 1985 D ouglas Drive Nor th 35 Dynamic D rive Golde n Valley, MN 55422 Scarborou gh, Ontario M1V 4Z9 Limited O ne-Y ear W a rranty (Co nt) THIS WARRA N TY IS THE ONL Y EXPRESS WARRANTY H[...]