Unitary products group WHOLE HOUSE DEHUMIDIFIER Spezifikationen PDF herunterladen (Seite 35)

035-17477-002 Rev. D (1202)

Unitary Products Group 35

HORIZONTA L APPLI CAT ION S

In most horizontal applications the filter is located in the

return air duct near the furnace or in a filter grille.

LUBRICATION

Blower motors in these furnaces are permanently lubricated

and do not require periodic oiling.

BLOWER CARE

Even with good filters properly in place, blower wheels and

motors will become dust laden after long months of operation.

The entire blower assembly should be inspected annually. If

the motor and wheel are heavily coated with dust, they can

be brushed and cleaned with a vacuum cleaner.

The procedure for removing the direct drive blower assembly

for cleaning is as follows:

1. Disconnect the electrical supply to the furnace and

remove remove the access doors.

2. On downflow/horizontal models only, remove the two

wires leading to the auxiliary limit mounted on the blower

housing.

3. On downflow/horizontal models only, remove four top

panel screws and lift the top panel enough to disengage

and remove the flue chase assembly.

4. Remove blower assembly mounting screws and slide the

blower assembly out of the slots in the deck. If the two

shipping screws were not previously removed, also

remove and discard these two screws located on each

front corner of the blower assembly.

5. On downflow models only, note the wire/terminal location

and then remove the blower wiring from the furnace con-

trol. Remove the protective boot and disconnect run

capacitor wires. Remove the screws securing the electri-

cal panel to the blower housing. Pull blower assembly

out of the unit. When cleaning or servicing the blower

assembly, DO NOT remove or change the balance clips

on the blower wheel.

6. To reassemble, reverse the procedure, restore power to

the furnace and verify operation.

When replacing filters, DO NOT use a type with

excessively high pressure drop. Some high

efficiency filters available will cause the furnace to

operate improperly and could result in a safety

hazard.

FIGURE 42 :

Furna ce Co ntrol E vent Sch edule

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 63 64

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