Kenmore 2700 17 GALLON CENTRAL HUMIDIFIER Installation Maintenance Repair Parts Troubleshooting Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A. contents WARRANTY ........................................... BEFORE YOU START Rules for Safe Installation 2 and Operation ................................... 2 Tools and Materials Needed .............. 2 UNDERSTANDING HUMIDITY .............. 3 SELECTING A LOCATION .................... 4 INSTALLATION...................................... 4 DISASSEMBLY...................................... 4 WATER SUPPLY ................................... 6 HUMIDISTAT.......................................... 7 OPERATION .......................................... 8 MAINTENANCE ..................................... 9 SERVICE HINTS .................................. 10 REPAIR PARTS .................................... 11 introduction Please read the instructionsbeforeyou installand useyour humidifier.This will helpyou obtainthe fullvalue from the humidifier.It will also helpyou avoidany needless service cost, ifthe problemissomethingwe cannotcontroland cannotcover in our Warranty. FULL ONE YEAR WARRANTY ON HUMIDIFIER If, within one year from the date of pumhaee, this humidifier fails due to a defect in material or workmanship, Seers will repair it, free of charge. WARRANTY SERVICE IS AVAILABLE BY SIMPLY CONTACTING THE NEAREST SEARS STORE OR SERVICE CENTER IN THE UNITED STATES. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. This warranty DOES NOT cover the replacement media pad. Sears, Roebuck and Co., Dept. 817WA, Hoffman Estates, IL 60179 DO-IT-YOURSELF CHECK LIST Ifyoufeel thefollowingoperationsare withinyourskills,youshould have no difficultyinstallingthis humidifier.   Cuttingand drillingsheet metal. Using hand tools:screwdriver,wrench,etc.  Rookingup lowvoltage electricalconnections. You must realize that the wrong use of any tool can be dangerous. Be sure you know how to use the tools and equipmentto avoid any possiblehazards. If you have any doubt we ask that you contactyourSears salesperson.They willarrangefor professional installation. SEARS INSTALLATION WARRANTY SEARS INSTALLATION POLICY Allinstallationlaborarrangedby Sears willbe performedin a neat, workmanlikemannerin accordancewithgenerallyacceptedtrade practices.Further, all installationswill complywith all local laws, codes, regulations, and ordinances.The customerwill also be protected, during installation, by insurance relatingto property damage, Work]nan'sCompensation,and publicliability. In additionto any warranty extendedto you on the Sears marchandise involved,which warranty becomes effectivethe date the merchandise isinstalled,shouldtheworlonanshipofanySears arrangedinstallationprovefaultywithinone year, Searswill, upon noticefrom you, cause such faults to be corrected at no additionalcostto you. before you start RULES FOR SAFE INSTALLATION & OPERATION 1. Read these rules and the instructionscarefully.Failuretofollow the rules and instructionscouldcause bodilyinjuryand/ or propertydamage. 2. Check your local buildingcodes and utilitystandards.The installationmustcomplywith their rules. Alwaysshut offthefurnace blowerbeforeinstallingor servicingthe humidifier. 3. 4. 5. 6. 7. 8. Always wear safety glasseswhen installingor servicing. HUMIDIFIER MUST NOT BE INSTALLEDIN AREA WHERE FREEZING IS POSSIBLE OR LEAKING WOULD CAUSE WATER DAMAGE. Followa regularservice and maintenanceschedule. Always shut off electricityand water to the humidifierbefore servicing. When thefurnace blower is usedfor air-conditioning, the humidifierdampershouldbe closed, andthe humidistatshould be turned to the minimumhumiditysetting. g. NEVER OIL ANY PARTOFTHE HUMIDIFIER. 10. To preventover humidification,humidifiermust not be operated above humidiatat high position or above the +20 position (whichever applies) except briefly to test operation after installation or servicing. TOOLS AND MATERIALS NEEDED • Safety Glasses • Straightedge ruler • Screwdriver(flat point,and • Pencilor grease pencil • Phillips,mediumsize) File • • Level Hand drillor grounded electricdrill • Hammer • Drillbits, 5/32", 118" • Smell adjustablewrench • "r]nsnipsor metal cuttingsaw • Center punch • Springhose clamp pliers • Wire strippersor razor knife THANK YOU! Thank you for selectinga Sears Humidifier.It willprovideyears of service if you give it a littlecare. UNDERSTANDING HUMIDITY Humiditycan be puzzling. It cannot be seen, heard, touched, smelledor tasted. Many people do not understandwhata humidifier will or will not do. them at all, especiallyin the corners,you have too little. (NOTE: Moisturewill not normallyformon thermopaneor whenstorm win. dows are used.) ff there is some moisturein the windowcorners and alongthe edges,the humidityisjustabout right.This isa good role of thumb, it you do not have an expensivepiece of testing equipment.Yourcomfortis another good check. Probablythe best way to judge whether the humidityis too high, too low or aboutright isto watchyour windows.If they are heavily fogged you most likelyhave too much. If there is no moistureon TYPICAL QUESTIONS ASKED 1. Why do moisture requirements vary from home to home? 5. Whet else causes static shock besides low humidity? Requirementsdepend on the amount and drynessof airto be humidified.The largerand more looselyconstructedthe home, the greaterthe quantityof moisture required. Some typesof carpets tend to create more staticthan others. While the properhumiditylevel will reduce the static level, it may noteliminatestaticentirely. 2. How can I best check my home's relative humidity? 6. What Is the safe humidity level for my home? First give your humidifiertime to build up the humidityto an acceptablelevel. Instrumentsare availableto measure relative humidity,but from a practical standpoint,your comfortis the best guide.You cannot depend on table top or wall hung dial gauges. In order to determinethe safe relativehumidityfor homes exposedtovariouslow outsidetemperatures,NESCA* conducted tests and publishedrecommendedhumiditylevelsfor various outdoortemperatures.These are shown in the chart. These levels help preventdamage to your home such as water running downthe walls or even buildingup insidethe walls. The safe indoorrelativehumiditypementageis nota fixednumber but will increaseor decrease as the outdoortemperatures rise or fall. 3. How long will It take my humidifier to build up the humidity In my home? Much dependson the outsidetemperature,timeof year, home construction,and howdriedout the home hasbecome.In soma cases, it may take a week or mare. Outside Temperatures 4. What are some of the common things that cause higher then average sir leakage In the home, therefore causing low humidity? A. Jalousiewindows B. Open fireplacedampers C. Cracks aroundwindows end doors D. Open doors end windows E. Unusuallylarge attic or foundationvents F. Range hoodsand bath fans Maximum Safe Recommended Indoor Relative Humidity -10 ° F 20% 0° F 25% 10° F 30% 20 ° F 35% 30 ° F 35% *NESCA - Ndonal EnvironmentalSystemsContractorsAuociation. 3 selecting a location Consider these points as you choose the location for your humidifier. Locate humidifieron supply air plenum(Fig. 1) or return air plenum. Ifthe humidifierisinstalledon the rstumair plenum,the flexible hose, roundopening, is connected to the supplyair plenum. 16 inch minimum 40 inch maximum using flex hose provided* • Purchaseadditional hosefo_greater spans. If furnace is equipped with air conditioning, humidifier should be mounted above or at slope side of "A" coil to avoid possible splashing (Fig. 2) of water. ReturnAir Plenum Fumac_ Humidifiershouldbe installedsothat ifthe humidifieror any other connectionsshouldleak, the resulting flowofwater willnotcause damage. Under no condition isSears and the manufacturerto be held liable for any water damage in connection with this humidifier.Never installhumidifierin attic or crawlspacewhere freezing may occuror leaking will cause water damage. If holes between supply air plenum and return air plenum must be located more than 40 inchesapart (Fig. 1), standard 6 inch round pipe and fittings(not supplied)may be used, or an 8 foot sectionofflexibletube No. 28115205 may be pumhasedthrough the Searsparts departmenLMaterialsneededforthis typeinstallationare available at Seam. installation The humidifieris shippedwith the block-offpanel on the rightside (Fig. 3). This issuitableforinstallationas shown in Fig. 1, above. If this is suitable for your installation, remove parts as shown under DISASSEMBLY. Place Humidifier Duct Supply Ai Plenum Air ConditionerCoil AS CONVI=HTI=U Right Hand Flange AS SHIPPED Left Hand Flange Block-Off Panel If you require the block-off panel on the left side (Fig. 4), start with DISASSEMBLY then remove block-offpanet from dghtflange and install with the same screws on left flange. Block-Off Panel FIBER PLENUM DUCTS NOTE: The mountingscrewssuppliedere for standard installationon sh_t metal plenumducts. If you have fiber plenum ducts, install the humidifierand components withthru-belts, nuts,and washers (not supplied).(This fiber duct installation hardware is not supplied and must be purchased from you local hardware store.) Bypass Flange Bypass Flange vent eye injurywhen installinghumidifier. CAUTION: Safety glasses shouldbe wornto pre- disassembly 1.Take off front panel by slidingpanel up and pullingout at the bottom. 2. Remove corrugated spacer and by.peesbootwhich contalnsdamper,collar & flextube and tube damp. 3. Remove media pad by liftingbottom edge up slightlyand pullingout. Cese/umemUy  1 6 Mark a level line on the supplyair plenum (Fig. 6).  Drillthe four holesmarked on the plenum with a 1/8" drillbit. Holes mustbe locatedat end of slot (Fig. 7).  7 Attach the humidifiercase assembly on the plenum using4 #8 screwsprovided. Level Line 1 Drill4 1/8" Holes 4" Min. Sup,ply Air J_ Furnace Cut Along-This Line i Plenum  2 _tcou[ This Area • Hold case assembly againstthe plenum with bottom edge ofrear openingon level line. Mark fourcomers of rectangularopeningand four screwlocationson plenum,Screwholesmust be locatedat end of slot (Fig, 7). Level _ne • Furnace j Plenum  8 Hold collarand flexible tube assemblyagainstcold air plenum at desired location.  9 Locstions Mark roundopening inside collar and five mounting holes(Fig. 9).  10 Level Line Centerpunchfive screw locations.Drillor puncha large holewithinthe roundopening.Cut out the area insidethe round opening.Drillthe five holes (Fig. 9). _l, SupplyAir Plenum I Furnace 1  3 Connect corner marksto outlinerectangularopening. Center punchfour screw locations(Fig. 8). Hot Air Plenum  4 Drill or punch a large hole in one corner of rectangle. This willallowyou to insertthe tin snipsor metalsaw. Cold Air Plenum Furnace I CAUTION: Be sure not to drill or cut intoair conditioning coil or tubing. I  5 Cut out thearea insidethe rectangle.Ifany ofthe edges are rough,file them smooth(Fig. 8). 5 installation  11 Attachcollarand flexiblehoseto cold air plenumusing(5) #8 screwsprovided.Ifaddifionaiflexiblehoseis requiredan eightfoot length is availablethroughthe partsdepartment,order 28115205. Beforeflghtening screwsinsertdamperbetweencollar and plenum (Fig. 10). It shouldbe open for humidifieroperation. WATER SUPPLY I  1 Waterforthe humidifiermustbetakenfroma nearby coldwater line.Turn offthewater supply.Drain byopeninga faucet at a lowerlevel ofthe line. (Slideshut beforeusingair conditioning. Slide openat startof heating  season.) ___ Mountthe saddlevalve on thewater lineas closeto SPECIAL NOTE: When measuring the distancefrom the saddlevalvelocationtothe humidifier,keep in mindthatthe tubing mustbesupported;therefore, it mustrunalongceiling and walls. Measurealongthe path the tubingwillfollow.  12 Attach boot to humidifierusing (2) #8 screws engaged in the tinnermannuts providedin bypass flange. Connect the flexible tube as shown usingclamp provided.Do not allow flexibletube to come within3" of furnace flue pipebecauseof flue pipe'sextreme heat (Fig. 11).  3 _ out the piercingpin by tumingthe "T" handle counterdockwiseand then clampthe saddlevalve bodysecurely onthe waterlinewith rubber gasketposifionedas shown(Fig. 13). On galvanizedor copper pipe over 5/8", firstdrilla 5/32" hole. #8 Screw / 2 the humidifieras possible.You have bean suppliedwith(10) feet of 114"plastictubing. amper Blade (5) #8 Screws tubing because it may become disconnected when used with CAUTION: Use plastic tubing supplied, Do not use copper hardware supplied. I drill. AUTION: For safety use a handdrillor groundedelectric  4 Turn handleclockwiseuntilit haspiercedthe water lineand valve iscompletely closed(Fig. 13). #8  13 : Clamp  5 Partiallyuncoilthe tubing. Slidethe brasscompression nut over the tubing. The threads in the nut must face the tubing end. Place the brass compressionsleeve as shown(Fig. 13). Slipbrass insertintoend of tubing. The waste water drain mustbe installed.The drain is inthe bottomof the humidifierreservoir(Fig. 12). Use 1/2" I. D. x 10"plasflc tubing to connect drain. (Tubing is supplied.)Additional tubing is available at yourSears store,Stock No. 42-3433 II  6 Insert the tubing end into the saddle valve at threaded stem "A" (Fig. 13) as far as it will go. Thread the brass compression nutontothe valve, then tightengentlywith a wrench. Take care notto overtightenthe nut. Ill I Brass CompressionSleeve ='q_-- Spring f °%% L.> Hose To Drain I CAUTION: Wear safety glasses. I Brass CompressionNut  14 Uaingspringhoeaclamppliem,expandhoeaclamp and slide over en_lof _ tubingapproximately2 inches.Slide plastictubing onto waste water dr_n. Expandhose clamp and poaiUonto clamp tubingto waste water drain (Fig. 12). MOUNTING SADDLE VALVE 6 Brass Insert  7 Unwind the rest of the tubing. Take care not to Idnk it. Run the tubing along flat surfaces to the humidifier. Support the tubing as needed to avoid contact with furnace. NOTE: The humidistat as supplied is assembled for return air plenum installation (Fig. 16.). RETURN AIR PLENUM MOUNT  1  8 Close previouslyopened faucet.Turn on main water supply.Place a pail under the end of the tubing.Open the saddlevalve. Flush the line. Make sure there are no leaks along the lineor at the valve. Turn valve off. LOCATE THE HUMIDISTAT on return air plenum (Fig, 15). DO NOT install humidistat on supply air plenum. HUMIDISTAT MUST BE MOUNTED AT LEAST 6" UPSTREAM FROM FLEXIBLE HOSE (OR HUMIDIFIER IF HUMIDIFIER INSTALLED ON RETURN AIR PLENUM).  9 With water supply tubing cut to the properlength, slidethe plasticcompressionnut overthe tubing.Slipbrassinsert intothe end of tubing. -- ._.. I _% /..i -- Humidistat AirPlenum On Return Check For Leaks, Tighten if Necessary._ /I _ only/ IF 6" Minimum PlasticTubing Supply I-J'F--_-II J,_,.l[... _,. _ I t I I A _ Air Flow J _Fu r"'nac_" Brass Insert  Compi'ession Nut 2 .1_. I / Plenum I I HUMIDISTATMOUNTS IN A HORIZONTAL POSI- TION. Peel paper backingfrom template and paste it on return air plenum where humidistatis to be mounted.Keep level. Valve  3 Drill 118" holes for the four mounting screws as shownon the template.  10 Insertthe tubing end intothe solenoidvalve fitting asfar as if willgo and hold itthere, threadthe plasticcompression nutontothe fitting, then tightensecurely,finger tight(no wrench). Do not over tighten nut (Fig. 14).  4 cut outcenter portionoftemplatewithinsolidlines.  5 After removing paper backing from gasket, apply gasket around return air plenum opening as indicated on ternplate (Fig. 16).  11 Turnon watersupplyat saddlevalve.Checkfor leaks at solenoid valve fitting and plastic compression nut. I NOTE: water will not flow thru humidifieruntilelectricalinstallationis completed. I ApplyGasket Here AroundOpening I Backplate Mounting Screws (4) installation Plenum Opening HUMIDISTAT The humidiatatis designedto mounton the returnair plenumof your furnace or on an interior wall of the home. The return air plenum,however, is the preferred locationfor sensing the everage humiditythroughoutyour home and is the locationcovered byinstallationsteps 1 through11. (ifyou decideonthe wall mount location,the humidistatcontrolunitmustbe removedand mounted to the oppositeside of the plasticbackplateeo it willbe housed l_aideof the plasticcover- omitsllaft extana]on- purchaseadditional low voltage wire and run wire inside of wall to exit hole withinthe loweropening of the backplate.) _" ControlUnit I Mounting Screws (2) LSheft Extension 7 WIRING TOCONSTANT 120VACUNE EXTERNAL TOFURNACE Junction _ _U  6 Usinglowvoltagewire supplied,connectspadeter- J Ill I IIII IIII Inllal SiI# _ddl In Rltum Air Plenum (_ _-._lly _ o=_s) Pu_ thisacce_loty separately ifneeded. Av=_ _o_ s_-s P,_,_ Ser_= I minalsto solenoidvalve on top of humidifier. J NOTE: Wiring mustconformto localcodes.  7  12  8 Feed wires thru opening in humidistatback plate and attachto screwterminals.Mounthumidistaton retumair plenum using (4) #8 screwsprovided.Install shaftextension,cover and knob (Fig. 16). operation Position and support wire to humidistat location. Separate wire. Cut only one wire, strip ends. I Attach"OperatingInstructionLaber to returnair plenum nexttothe humidistat.Peel offpaper backingand sticklabel in desired location.  1 Set knobto the lowest temperaturepredictedfor a 24 hourpe_nd. Because ofdifferencesin houseconstruction you may wanttotrya higheror lowersettingtoachieveproperhumidity. CONTROL CIRCUIT: Forproper operationand water conservefion, this humidifiermustbe wiredso it willoperateonlywhen the furnace blower is runningand the humidistatcalls for additional humidity.Two methodsare shown(Fig. 17 and Fig. 18):  2 Change knob settings as outdoor temperature changesoccur. Fig 17: WIRING INTO FURNACE - FOR ANY FORCED AIR FURNACE WITH SINGLE SPEED 120 VAC BLOWER ONLY. [ WARNING: DO NOT LEAVE KNOB SET IN "TEST" POSITION ABOVE %20" OR HUMIDIFIER WILL RUN CONSTANTLY. CAUTION: Do not use this methodwith multi-speedblowem or blowem otherthan 120 VAC. I Rg 18: WIRING EXTERNAL TO FURNACE- FOR ANY FORCED AIR FURNACE INCLUDING FURNACE WITH OTHER THAN 120 VAC BLOWER MOTOR OR FURNACE WITH MULTI-SPEED BLOWER MOTOR. IF SWEATING OF WINDOWS OR WALLS OCCURS OR IF AIR IS TOO DRY: Check dial seffing. Indicatorshould point to the lowest24 hour temperature. If settingdoes not agree, readjust knobto proper NOTE: Some furnacesare equippedwith accessoryterminalsthat can be usedfor the humidifier.In this case, consult the fumane manufacturer'srecommendationfor wiring. correctand conditions have not changed, rotate knob beck and forthfromTEST to MINIMUM HUMIDITY SETTING. If humidifier numberand wait 24control hoursfor sweatingto stop. Ifdial settingwas goes ON and OFF, is operatingproperly. i AIR CONDmONING - IMPORTANT: If your furnace has air conditioning (cooling),dose the damper completely duringsummer months and tum the humidistatto the MinimumHumiditysetting.BE SURE TO OPEN DAMPER DURING HEATING SEASON AND RESETTHE HUMIDISTAT.  9 Tum offelectricityat fusebox. Using(two)wire nuts and conduit nut supplied, install24 VAC transformerto 120 VAC supplyjunction box followingthe control circuitselected so the transformer will be powered onlywhen the fumaceblower is running. Do not use existingtransformer on fumace. WATER FLOW RATE: At standardwater line preseureof 50-60 PSI (poundsper square inch), water willflow through humidifierat approximatelyfour (4) gallonsper hour.About 0.7 gallonspar hour of the four will be evaporated,leaving3.3 gallons to be drainedaway.Since the furnsoe only runsan estimated30-40% of the beating season, and the_umldifter is wired to operate only with the fumase blower, and only when humidityIs required,the actual amount of water drainedper day is much less than wouldbe expected.  10 Connect spade terminals of low voltage wire to spade terminals of transformer.  11 Tumonalectridtyandtastoparationbyobasrvinglf water is flowingto drain while fumace is running and humidistat dial Is set to "toet"position. 8 SPLASH INSIDE HUMIDIFIER: coating of lime will build up. It could, in extreme cases, cause leaking of water from the humidifier. This humidifier depends on the difference of air pressu re between the supply air plenum and the return air plenum to propel air through the humidifier. Some furnaces have higher pressures than others, This could result in air traveling at high speed through the humidifier. This can cause droplets of water to be picked up and splashed against the inside of the humidifier case. Eventually a TO REDUCE SPLASH: Partially close the damper located in the collar on the return air plenum. Some experimenting may be necessary to find the proper setting. maintenance CLEANING periodic preventative maintenance AND SERVICE INSTRUCTIONS: CAUTION: Before performing service, inspection, or maintenance:  1 Periodic inspection and preventative maintenance of these components is important for continued, efficient operation of the humidifier. Refer to exploded view for location of components. Turn off electricity at furnace, humidifier, and humidistat. 2 Turn off water at humidifier saddle valve. 3 Wear safety glasses. CAUTION: Be sure water and electricity are turned off as advised above. distribution This humidifier is an appliance that evaporates water in large quantities. The dissolved minerals normally found in tap water in varying degrees are left as lime deposits on the media pad and other parts in contact with the water. Deposit build-up will reduce humidifier output. Annual cleaning and replacement of the media pad is recommended. Since water conditions vary, it may be necessary to service more or less often. Establish your own service schedule. Ease of service has been foremost in the design of this humidifier following the steps below: servicing 1  1 Lift Off front panel.  3 Reassemble pad set and distribution trough and secure with the (2) #6 screws. the media pad drain tube Lift Offfront panel. I_ 1 Using spring hose clamp pliers, expand hose clamp and remove drain tube.  2 Clear internal lime and calcium deposits by flexing or striking on hard surface. 3 If necessary, clean inside of humidifier case (especially lower drain area) with water and vinegar solution, detergent and water, or Sears All-Purpose Humidifier Cleaner, Stock No. 42-14713.  3 4 4 Install media pad by sliding top edge up and pivoting bottom edge into position. solenoid  1 Replace front panel. 6 Turn on water and electricity and test operation by observing if water is flowing to drain while furnace is running and humidistat is set to =test" position.  7 trough Loosen the (2) #6 outer screws on top of the humidifier. Remove and clean the distribution trough and pad set. Replace pad set (Pt. No. 35587901) if badly soiled. 2 5 I  2 Remove media pad by lifting bottom edge up slightly and pivoting out. Inspect and replace if badly b_ocked with mineral deposits. (Media Pad available from Seam, Stock No. 42-14711 .)  I I Flush with water under pressure. Reinstall drain tube and hose clamp. water filter Remove water line at solenoid.  2 Remove nylon elbow inlet fitting filter/orifice assembly from solenoid valve by unscrewing (turn counter-clockwise). _i3 Check for clogging by blowing through one end. If clogged, replace with new fitting assembly, Part No. 05291201. Set humidistat according to outdoor temperature as instructed on operating instruction label. Unit is back in operation. 9 I  8 Set humidistataccordingto outdoortemperatureas instructedon operation instructionlabel. Do not leave in 'test" position.Your humidifiershould now be ready for many more monthsol trouble-freeoperation. flowcontrolorificewhichmustbe in placefor properoperation of your humidifier.(if not installed,too much waterwill CAUTION: This special fitting contains a brass filter and flow and may cause leaking.)  4 summer shut down Reinstall the nylon elbow inlet fittingfilter/orifice as- sembly by carefully aligning the fine thread end containing the flow control orifice into the solenoid valve and screwing in (clockwise) until moderately tight.  5  6 Turn humidistatdial counter-clockwiseto minimumsettingposition, close saddle valve, close bypass damper, and clean per above.(As a reminder,you mightwant to put a tag or stickeron the unitindicatingit has been shutdownfor the summer and will requirestartup in the fall.) Reinstall water line. fall start up Replacefront panel. Open saddle valve and open bypass damper.Test operationby observingif water isflowingto drain whilefumace is runningand humidistatdial issetto 'test" position.Set humidistataccording to outdoortemperatureas instructedon operationinstructionlabel. Unit is back in operation.  7 Turn on water and electricityand test operationby observingifwater is flowingto drainwhilefurnaceis running and humidistatis set to "test" position.Check for leaks and tighten fittingas required. service hints Frequentlywhat seems to be a majorproblemcan be solvedvery easily.Listedbelow are the commonconcernswith any humidifier. Check the simplethings first. Remove thefront panel and see if there is a crusty,whitelime build-upon the media pad.The lime buildup won't hurtthe humidifier,but will reduceitsoutput.Low outputmightjust mean yourhumidifierneeds cleaning. CONDITION Too little Humidity Too much Humidity Humidifier Making Noise WHAT TO CHECK WHAT TO DO 1. Check for obviousproblems. 1. 2. Humidiatatsetting. 2. 3. Water to unit. 3. 4. Excessiveair lose in house. 4, 5. Is damperopen? 5. Slide damperout for winteroperation. 1. 2. Humidiatatsetting. Other humidificationsources. 1. Turn knobcounter-clockwiseto decrease humidity. 2. May be a temporaryconditioncaused by moisture from laundering,bathing,cooking,etc. 1. Tightenall fasteners. 2. A slightsound is normalas water enters humidifier. 1. 2. Mountingor plenum. Water pressure. 10 a. b. c. d. Replacemedia pad. Inspectmain fuse or circuitbreaker. Check to see if solenoidisoperating. Humidistatsettingtoo low,turn knobclockwise to increasehumidity. e. Check distributionpad set and clean or replaceif dirtyor clogged. Set for proper outdoortemperature- lowest24-hour temperature. Turn on saddlevalve and checkfor possible obstructionin water line. Is water supplyconnected?Check solenoidwaterfilter and replace inletfittingfilter/orifice assembly if clogged. Closefireplace damper,seal arounddoorsand windows. repair parts CENTRAL SYSTEM HUMIDIFIER MODEL NO. 303.147012 KEY NO. 1 2 3 4 5 6 7 8 PART NO. 21597201 33521001 21595101 21594201 21594101 21594001 21601101 35561801 9 10 11 12 13 14 STD575025 STD575026 03001804 03028705 05291201 21597701 15 16 17 18 21598701 25514001 35587901 21582703 DESCRIPTION KEY NO. PART NO. Case Assembly Media Pad (42-14711 ) Front Panel Speed Clip Rubber Washer Plastic Eyelet Boot Saddle Valve 19 20 21 22 23 24 25 26 (Includes Key Nos. 9 & 10) Brass Compression Nut Brass Compression Sleeve Nut (No. 6-32 Thread) (2 Req.) Screw (No. 6-32 x 1/2") (2 Req.) Inlet fitting filter/orifice Solenoid Valve (Includes Key Nos. 13 & 15) Outlet Fitting Plastic Compression Nut Distribution Pad (Set) Plastic Supply Tubing (1/4" x 10 Ft.) 27 28 29 41067501 STD610603 03022701 21594501 21594701 43148901 43149102 21581001 STD610803 28098302 35548801 21603901 35587302 41053902 21595501 THIS IS A PARTS LIST, NOT A PACKING LIST DESCRIPTION Brass Insert (2 Req.) Screw 6Z x 1/2" (6 Req.) Nut 6Z (6 Req.) Distribution Trough Block-Off Panel Damper Collar & Flexible Tube (3 Ft.) Tube Clamp Screw (No. 8 x 3/8") (9 Req.) Hose Clamp Drain Tube (10 Ft.) Lead Wire (10 Ft.) Humidistat (24 VAC) Transformer (24 VAC) Owner's Manual (0796) *Not Shown 11 Kenmore 303.14701 FURNACE HUMIDIFIER MAINTENANCE (APPLY THIS LABEL WHERE EASILY SEEN) Cleaning frequency is dependent upon mineral content of water supply. Check every 60 Days until schedule can bd determ_ned. CAUTION: Before performing service, inspection, or maintenance: off water at humidifier saddle valve, wear safety glasses. Turn off electricity to furnace and humidifier, turn SERVICING THE MEDIA PAD 1. Lift off front panel. 2. Remove media pad by lifting bottom edge up slightly and pivoting out. Inspect and replace if badly blocked with mineral deposits, available from Seam (stock number 42-147tl). 3. If necessary, clean inside of humidifier case (especially lower drain area) with water and vinegar solution, detergent and water, or Sears All-Purpose Humidifier Cleaner stock no. 42-14713. 4. Install media pad by sliding top edge up and pivoting bottom edge into position. 6. Replace front panel. 6. Turn on water and electricity and test operation by observing if watsr is flowing to drain while furnace is running and humidistat is set to "test" position. 7. Set humidistat according to outdoor temperature as instructed on operating instruction label. Unit is back in operation. PERIODIC PREVENTATIVE MAINTENANCE Periodic inspection and preventative maintenance of these components is important for continued, efficient operation of the humidifier. Refer to exploded view in your owners manual for location of components. CAUTION: Be sure water and electricity are turned off as advised above. DISTRIBUTION TROUGH 1. Lift off front panel. 2. Loosen the (2) #6 outer screws on top of the humidifier. Remove and clean the distribution trough and pad set. Replace pad set (part number 365879-01) if badly soiled. 3. Reassemble pad set and distribution trough and secure with the (2) #6 screws. DRAIN TUBE 1. Using spring hose clamp pliers, expand hose clamp and remove drain tube. 2. Clear internal lime and calcium deposits by flexing or striking on hard surface. 3. Flush with water under pressure. 4. Reinstall drain tube and hose clamp. SOLENOID WATER FILTER 1. Remove water line at solenoid. 2. 3. 4. 5. 6. 7. 8. Remove nylon elbow inlet fitting filtedoriflce assembly from solenoid valve by unscrewing (turn counterclockwise). Check for clogging by blowing through on end. If clogged, replace with new fitting assembly, Part No. 052912-01. CAUTION: This special fitting contains a brass filter and flow control orifice which must be in place for proper operation of your humidifier. Reinstall the nylon elbow inlet fitting filtsdorifice assembly by carefully aligning the fine thread end containing the flow control orifice in the solenoid valve and screwing in (clockwise) until moderately tight. Reinstall water line. Replace front panel. Turn on water and electricity and test operation by observing if water is flowing to drain while furnace is running and humidistat is set to "test" position. Check for leaks and tighten fitting as required. Set humidistat according to outdoor temperature as instructed on operation instruction label. Do not leave in "test" position. Your humidifier should now be ready for many more months of trouble-free operation. Summer Shutdown Turn humidistat dial to "minimum setting", close saddle valve, close bypass damper, and clean per above. (As a reminder, you might want to put a tag or sticker on the unit indicating it has been shut down for the summer and will require start up in the fall.) Fall Startup Open saddle valve and open bypass damper. Test operation by observing if water is flowing to drain while furnace is running and humidistat dial is set to "test" position. Set humidistat according to outdoor temperature as instructed on operation instruction label. Unit is back in operation. PIN 21603801R10-0O Kenmore 2700 17 GALLON CENTRAL HUMIDIFIER For the repair or replacement parts you need Call 7:00 a.m. - 7:00 p.m., 7 days a week 1-800-366-PART (1-800-366-7278) For in-home major brand repair service Call 24-hours a day, 7 days a week 1-800-4-REPAIR (1-800-473-7247) For the location of a Sears Repair Service Center in your area Call 24-hours a day, 7 days a week 1-800-488-1222 For information on purchasing a Sears Maintenance Agreement or to inquire about an existing Agreement Call 9:00 a,m, - 5:00 p,m,, Monday-Saturday 1-800-827-6655 SEARS •taY.'fl,_,J 'l[_t_ America's Repair Speciahsts Tell Sears You Want It Installed, Then Relax... When Sears arranges the installation, you can be sure the job is done right. We will arrange for professional workmanship...and we'll take care of the entire project. What's more, during installation you get insured protection...against property damage and also against accidents to workmen. All you have to do is talk to your Sears salesperson or call 1-800-865-6500 or your nearest Sears store today for detailed information. Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A. 10-00 215955-01-05 Printed in U.S.A.
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