flowcontrolorificewhichmustbe in placefor properopera- tion of your humidifier.(if not installed,too much waterwill

ICAUTION: This special fitting contains a brass filter and flow and may cause leaking.)

[] 4 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 (clock- wise) until moderately tight.

[] 5Reinstall water line.

[] 6 Replacefront panel.

[] 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

[] 8 Set humidistataccordingto outdoortemperatureas instructedon operation instructionlabel. Do not leave in 'test"

position.Your humidifiershould now be ready for many more monthsol trouble-freeoperation.

summer shut down

Turn humidistatdial counter-clockwiseto minimumsettingposi- tion, 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.)

fall start up

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.

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 build- up won'thurtthe humidifier,but will reduceitsoutput.Low outputmightjust mean yourhumidifierneeds cleaning.

CONDITION

Too little

Humidity

Too much

Humidity

Humidifier Making Noise

WHAT TO CHECK

1.Check for obviousproblems.

2.Humidiatatsetting.

3.Water to unit.

4.Excessiveair lose in house.

5.Is damperopen?

1.Humidiatatsetting.

2.Other humidificationsources.

1.Mountingor plenum.

2.Water pressure.

WHAT TO DO

1.a. Replacemedia pad.

b.Inspectmain fuse or circuitbreaker.

c.Check to see if solenoidisoperating.

d.Humidistatsettingtoo low,turn knobclockwise to increasehumidity.

e.Check distributionpad set and clean or replaceif dirtyor clogged.

2.Set for proper outdoortemperature- lowest24-hour temperature.

3.Turn on saddlevalve and checkfor possible obstructionin water line. Is water supplycon- nected?Check solenoidwaterfilter and replace inletfittingfilter/orifice assembly if clogged.

4, Closefireplace damper,seal arounddoorsand windows.

5.Slide damperout for winteroperation.

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.

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Sears 303.147012 manual Service hints, Fall start up, Condition, What to Check, What to do
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303.147012 specifications

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