Kenmore 303.9380612 User Manual

Owner’s Manual

Ken more

CENTRAL HUMIDIFIER 3000

18 Gallon Output Per Day
Humidifies up to 3,000 sq. ft

Model No. 303.9380612

CAUTION:

Before using this product, read
this manual and follow all Its Safety
Rules and Operating Instructions

Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.

www.sears.com

Safety
installation
Operation
Maintenance
Repair Parts
Español

BLE OF CONTENT

Warranty......................................................................2

Safety Instruction

Before You Start
Understanding Humidity

Installation...................................................................5

Selecting a Location

Humidistat ............................................................7

Standard Wiring Method.......................................8

Alternate Wiring Methods

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3
3
4

5

9

FULL ONE YEAR WARRANTY ON HUMIDIFIER

If this humidifier fails due to a defect in material or workmanship within one year from the

date of purchase, Sears will repair it free of charge.
The media pad is an expendable part, and its replacement is not covered by this warranty.
Warranty service is available in the United States by calling Sears at 1-800-4-MY-HOME.
This warranty gives you specific legal rights, and you may also have other rights, which

vary, from state to state.
Sears, Roebuck and Co., Hoffman Estates, IL 60179

MASTER PROTECTION AGREEMENT

Congratulations on making a smart purchase. Your new
Kenmore® product Is designed and manufactured for
years of dependable operation. But like all products, it
may require preventive maintenance or repair from
time to time. That’s when having a Master Protection
Agreement can save you money and aggravation.

Purchase a Master Protection Agreement now and

protect yourself from unexpected hassle and expense.

The Master Protection Agreement also helps extend
the life of your new product. Here’s what’s included in
the Agreement:

• Expert service by our 12,000 professional repair
specialists.

• Unlimited service and no charge for parts and
labor on all covered repairs.

• “No-lemon” guarantee - replacement of your
covered product if four or more product failures
occur within twelve months.

® Product replacement if your covered product

can’t be fixed.

Water Supply

Operation

Maintenance

Troubleshooting
Repair Parts

• Annual Preventive Maintenance Check at your
request - no extra charge.

• Fast help by phone - phone support from a Sears
technician on products requiring in-home repair,
plus convenient repair scheduling.

• Power surge protection against electrical damage
due to power fluctuations.

• Rental reimbursement if repair of your covered
product takes longer than promised.

Once you purchase the Agreement, a simple phone
call is all that it takes for you to schedule service. You
can call anytime day or night, or schedule a service
appointment online.

Sears has over 12,000 professional repair specialists,
who have access to over 4.5 million quality parts and
accessories. That’s the kind of professionalism you
can count on to help prolong the life of your new
purchase for years to come. Purchase your Master

Protection Agreement today!

Some limitations and exclusions apply.

For prices and additional information call
1-800-827-6655.

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Water Level Check
Humidistat

Adjusting the Float .............................................14

Summer Shutdown / Fall Startup

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CPJ

16 & 17

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PRODUCT RECORD

In the space below, record the model and serial numbers and the date of your purchase.

You will find the model and serial number on a silver sticker located on the side of the unit.

Keep this manual and your Sears sales receipt in a safe place for future reference.
Model No.
Serial No:

Date of Purchase:

) Sears, Roebuck and Co.

SAFETY INSTRUCTION

RULES FOR SAFE INSTALLATION & OPERATION
Read these rules and the instructions carefully. Failure to follow the rules and instructions could cause bodily injury

and/or property damage.

• Check your local building codes and utility standards. The installation must comply with their rules.

• Ground the humidifier to prevent electric shock.

• Follow a regular service and maintenance schedule.

• Always shut off electricity and water to humidifier before servicing.

• When the furnace blower is used for air conditioning, the humidifier switch should be turned “OFF.”

• Never oil any part of the humidifier.

• The humidifier must not be installed in an area where freezing is possible.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or injury.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
injury. It may also be used to alert, against unsafe practices.

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BEFORE YOU STA

KENMORE 3000 PRODUCT FEATURES:
® Self contained 120V 18 gallon model

• Designed for homes up to 3000 sq. ft.

• Works with Heat Pumps

• Quick electric and water disconnect

• Slide-out reservoir and media wheel
with reusable liner

• Substantial water savings - no drain required

• Automatic water feed

• Convenient ON/OFF switch

ACCESSORIES AND ATTACHMENTS
These accessories and attachments can be purchased

at Sears or by contacting Sears Parts: 1-800-366-7278
or online at

• Reservoir Liner (Part No. 215682-01)

• Remote installation Kit (Sears Stock No. 9372)

• Replacement Media Pad (Sears Stock No. 42-9336)

• Sears All-Purpose Humidifier Cleaner (Sears Stock
No. 42-14713)

TOOLS AND MATERIALS NEEDED

Safety glasses
Straight edge ruler
Pencil or grease pencil
Hand drill or grounded electric drill
Drill bits, 5/32", 1/8"
Tin snips or metal cutting saw
Screwdriver (flat point and phillips, medium size)
File
Level
Hammer
Small adjustable wrench
Center punch
Electrical wiring supplies (120V) as needed and of
the type required by local codes.
Materials needed for an alternate installation, use
remote mounting kit, Sears Stock No. 9372 (see

Typical Remote Installations, Page 5).

www.sears.conri.

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CARTON CONTENTS
<» Central Humidifier 3000

® Hardware Package

- Screw (7): Fastens Plenum Stiffener to the
Supply Air Plenum

- Conduit Connectors (6): Connects wires
together during wiring steps

- Brass inserts (2): Regulates water flow

- Brass Compression Sleeve (1): Aids in
connection of plastic tubing to the Quick

Disconnect Socket

- Capped Fastener: Secures upper case to

Plenum Stiffener

• Saddle Valve Package

- Saddle Valve

- Brass Compression Sleeve

- Brass Compression Nut

- Brass Insert

- Rubber Gasket

- Screws (2)

- Nuts (2)

• Humidistat (Humidity Control) Package

- Humidistat

- Gasket

- Mounting Screws (2)

- Operating Instructions

- Wiring Diagram

1/4" Plastic Tubing (10 ft.)
Float
Float Arm

Quick Disconnect Socket

Plenum Stiffener
Maintenance Label

Owner’s Manual

DO-IT-YOURSELF CHECK LIST
If you feel the following operations are within your

skills, you should have no difficulty installing this
humidifier.
® Cutting and drilling sheet metal.

• Using hand tools: screwdriver, wrench, etc.

• Hooking up line voltage electrical connections.

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I

UNDERSTANDING HUMI

I

THANK YOU!
Thank you for selecting a Sears Humidifier. It will

provide years of service if you give it a little care.
Humidity can be puzzling, it cannot be seen, heard,

touched, smelled or tasted. Many people do not

understand what a humidifier will or will not do.
Probably the best way to judge whether the humidity

is too high, too low, or about right is to watch your

windows. If they are heavily fogged you most likely

have too much. If there is no moisture on them at all,

especially in the corners, you have too little.

NOTE: Moisture will not normally form on thermopane

or when storm windows are used. If there is some

moisture in the window corners and along the edges,
the humidity is just about right. This is a good rule of
thumb, if you do not have an expensive piece of test

ing equipment. Your comfort is another good check.

TYPICAL QUESTIONS ASKED

1. Why do moisture requirements vary from home
to home?

Requirements depend on the amount and dryness
of air to be humidified. The larger and more loosely
constructed the home, the greater the quantity of
moisture required.

2. How can I best check my home’s relative
humidity?

First give your humidifier time to build up the
humidity to an acceptable level, instruments are
available to measure relative humidity, but from a
practical standpoint, your comfort is the best
guide. You cannot depend on table top or wall
hung dial gauges .

3. How long will it take my humidifier to build up
the humidity in my home?

Much depends on the outside temperature, time of
year, home construction, and how dried out the
home has become, in some cases, it may take a
week or more.

4. What are some of the common things that
cause higher than average air leakage in the
home, therefore causing low humidity?

A. Jalousie windows
B. Open fireplace dampers
C. Cracks around windows and doors
D. Open doors and windows
E. Unusually large attic or foundation vents
F. Range hoods and bath fans

5. What else causes static shock besides low
humidity?

Some types of carpets tend to create more static
than others. While the proper humidity level will
reduce the static level, it may not eliminate static
entirely.

6. What is the safe humidity level for my home?
In order to determine the safe relative humidity for

homes exposed to various low outside tempera
tures, NESCA* conducted tests and published
recommended humidity levels for various outdoor
temperatures. These are shown in the chart below.
These levels help prevent damage to your home
such as water running down the walls or even
building up inside the walls.

The safe indoor relative humidity percentage is not
a fixed number but will increase or decrease as the
outdoor temperatures rise or fall.

Maximum Sate Recommended

Indoor Relative Humiditv

F

-10"
0° F 25%

F

10°

F

20°
30° F 35%

*NESCA = National Environmental Systems Contractors Association.

7. Can I install this Sears Humidifier with a heat
pump?

Yes, you can! This is a normal installation using
this Sears Furnace Mount Humidifier. No special
accessory is required. The diagram below shows
the functioning of the unit and also its placement
on the plenum. Installed with a heat pump, it will
evaporate 11 gallons, for a well insulated house up
to 2400 sq. ft.

To install with a heat pump, the humidifier should
be mounted on a warm air plenum (A) or duct (B)
of a heat pump system. Some of the warm air is
drawn from the duct, forced through the wetted
media and returned to the same duct. A self-con
tained blower moves the air from the duct through
the humidifier and back into the same duct. The
heat pump air delivery across the coil is not dis
turbed, or altered, in any way. The heat pump, there
fore, continues to operate at maximum efficiency.

20Y

30%
35%

SELECTING A LOCATION

Carefully study the location that you choose for your

humidifier. Install the humidifier so that if the humidifier
or any connection should leak, the water will not cause
damage. Under no condition is Sears, Roebuck and

Co., and the manufacturer, to be held liable for any
water damage in connection with this humidifier.

NOTE: Never install humidifier in attic or crawl space
where freezing may occur or leaking will cause water
damage.

Measure the open area on the furnace supply air

plenum (Fig. 1). You will need a space 20" wide and

13" high. The humidifier will mount on a supply air

plenum isy?" wide by overhanging the sides. In
addition, you should have 12" of working area on each
side to make the electrical and water connections.

Place Humidifier

TALLAT

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BOTTOM

SERVICING

TYPICAL REMOTE INSTALLATION

In some cases it is impossible to install the humidifier
directly to the supply air plenum (plenum too small,
horizontal attic furnace, etc.). For remote mounting,
see Fig. 4. Connect the humidifier to the supply air
plenum using the Remote Installation Kit - Sears
Stock No. 9372.

REMOTE INSTALLATIONS

Adaptor

NOTE: The easiest and quickest way to service the

humidifier will be from the front. To service from the
front you will need 23" of space in front of the plenum
and only 2" of space below the humidifier {Fig. 2).

If you do not have 23" of space in front, the humidifier

must be serviced from the bottom. Servicing from the

bottom will require

If you do not have the space needed, or have a
counterflow furnace, refer to the installations shown

in Fig. 4, 5 and 6.

NOTE: If you have an air conditioning coil in your
supply air plenum, install the humidifier above or to
the slope side of the coil.

CAUTION: Be careful not to damage coil when
cutting into plenum {Fig. 1).

l^/i clearance {Fig. 3).

HORIZONTAL FURNACE IN ATTIC OR
CRAWL SPACE

Always insure that the humidifier is located in the
living area (closet or utility room) to easily access
for maintenance/servicing and to prevent freezing
or water damage (Fig. 5).

Hot Air Plenum
1 Living Area

Attic ^ Furnace

Iniet/Outiet

f vjbl Humidifier

Ceiling k

Inlet/Outlet

Living Area

Floor A

t

Crawl U

Space Li

Ho

Fig. 5

Humidifier

_ Furnace ~~1

Air Plenum

COUNTERFLOW FURNACE INSTALLATION

For installation of your humidifier on a counterflow
furnace, see Fig. 6. Connect the humidifier to the
supply air plenum using Remote Installation Kit,
Sears Stock No. 9372.

COUNTERFLOW FURNACE INSTALLATION

GRAVITY FURNACE INSTALLATION

SUPPLY AIR PLENUM

(Wider Than Stiffener)

2" to service from front (Fig. 2)

ZVA to service from bottom (Fig. 3)

Fig. 7

The humidifier works well on gravity furnaces because
of its self-contained blower system. Use the Remote

Installation Kit, Sears Stock No. 9372. The humidifier

must be at least 6" away from the plenum, due to the

higher operating temperature of the furnace.

NOTE: Furnace temperatures above 250°F may
cause failure of fiberglass parts.

Fiber Plenum Ducts

NOTE: The mounting screws supplied are for standard

installation on sheet metal plenum ducts.

If you have fiber plenum ducts, install the plenum
stiffener and components with thru-bolts, nuts, and
washers (not supplied), if necessary, reinforce the

humidifier mounting area on fiber ducts with sheet

metal and provide additional bracing as required to
support the weight of the humidifier and water. (This
fiber duct installation hardware is not supplied and

must be purchased from you local hardware store.)
You may also consider using the remote mount instal

lation if you have fiber ducts. Purchase the Remote

Installation Kit separately from Sears, Stock No. 9372.

1. The Plenum Stiffener is mounted on the supply
air plenum. Mark a level line at least 2" above the
top of the furnace on the selected surface, if
front service method (Fig. 2) is used. If the
humidifier is to be serviced from the bottom (Fig.

3), mark a level line at least iVb' above the top of
the furnace. Hold stiffener against the plenum
with the bottom edge on a level line and bent
edge flanges towards you. Using a pencil, mark
the location of all holes except hole “A” on
plenum (Fig. 7).

If plenum is narrower than stiffener:

The stiffener can be mounted on a plenum as narrow
as 13V2". The stiffener sides will extend past the
plenum (Fig 8). Begin installation as follows:

• New mounting holes will have to be drilled.
Drill the new holes only as far from the edge
as necessary. Use a 1/8" drill bit.

• Mark outline of rectangle as shown in Fig 8.

• Cut out this area of supply air plenum. If edges
are rough, file them smooth.

• Proceed to step 6.

SUPPLY AIR PLENUM

(Narrower Than Stiffener)

Plenum

Stiffener

Fig. 8