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External parts, Internal parts, Figure 23 — blower wheel and scroll – Carrier 52C User Manual

Page 12

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EXTERNAL PARTS

EXTERNAL PARTS include the polymer sleeve and

grilles. The sleeve manufacturer recommends cleaning
the surface, including the grilles, with household
detergent and water.

INTERNAL PARTS

INTERNAL PARTS should be cleaned at least once

during the year. The outdoor vent filter should be
cleaned at least once during a cooling or heating
season.
Internal parts that should be cleaned include the fol-
lowing (see Figures 5, 22, and 23):
• Outdoor vent filter
• Basepan
• Outdoor orifice and fan
• Indoor and outdoor refrigeration coils
• Indoor blower wheel
• Wire screen
• Scroll
• Wall sleeve internal surfaces
• Outdoor grille

SCROLL

BLOWER
WHEEL

FIGURE 23 — BLOWER WHEEL AND SCROLL

VENT
DOOR

VENT
FILTER

MAGNET

OP

EN

CLO

SE

VENT HANDLE

FIGURE 22 — OUTDOOR VENT FILTER

(Left Side of Chassis)