Kenmore CENTRAL HUMIDIFIER 303.9380612 User Manual download pdf (Page 7)

If plenum is wider than stiffener:

2. The five reference hole marks you’ve made on

the plenum outline the area that must be cut out.

Mark straight lines connecting the five points.

WARNING: Wear safety glasses! Be sure not to drill

or cut into air conditioner coil or tubing! If electric drill

is used, be sure it is properly grounded.

3. Drill or punch a large hole In one corner of the

area to be cut out. This will allow you to insert tin

snips or a metal saw.

4. Cut along the lines connecting the five points. If

any of the cut edges are rough, file them smooth.

5. Drill the remaining holes marked on the plenum

with a 1/8" drill bit.

6. Mount the stiffener with the mounting tabs facing

out toward you. Use the seven sheet metal

screws, supplied, to fasten the stiffener. Make

sure the stiffener is flush with the plenum and is

airtight. Seal around the edge with caulking (not

furnished) if necessary.

7. Using the two finger grips (Fig. 9) on the lower

edge of the front panel, simply lift the front panel

about 1/8" straight up, swing the lower edge out,

pull down until the front panel is free. Remove

lower rod screw (Fig. 9).

Disconnect media motor wiring at the electrical

disconnect. Grasp both ends of the electrical

disconnect and simply pull apart (Fig. 9).

WARNING: Do not pull on wires to separate

electrical connector.

Upper Case Electrical Disconnect

Remove the reservoir assembly. Remove the

lower case from the humidifier by unfastening

the latches on both sides and removing the

lower rod screw. Set the lower case, reservoir

media wheel assembly, and front panel aside.

Remove the humidistat from the lower case.

8. Hang the upper case assembly on plenum stiff

ener mounting tabs (Fig. 7). Tabs may have to

be bent out slightly to fit into the slots in the

back of the upper case assembly. Secure the

upper case to the stiffener by pressing the

capped fastener (No. 47, Page 16) through the

back of the humidifier and into hole “A” (Fig. 10).

NOTE: It is very important that this fastener be

used. If the upper case is not attached with the

fastener, it could be dropped and damaged during

routine maintenance.

HUMIDISTAT

1, Locate the humidistat on the return (cold) air

plenum (Fig. 11). DO NOT install the humidistat

on the supply (hot) air plenum because the

humidistat cannot accurately measure indoor

relative humidity and will cause the humidifier to

function improperly.

Return

Air

Plenum

Gasket

Fig. 11

2. The humidistat mounts in a horizontal position.

Using gasket as a template, mark the location

of the two mounting holes and the opening for

the humidistat on the return air plenum.

3. Drill 1/8" holes for two mounting screws.

Cut out the opening for the humidistat.

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Kenmore CENTRAL HUMIDIFIER 303.9380612 User Manual Page 7

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