Buick LeSabre 1965 Service Manual page 757

1 1 - 2 4 HEATER SYSTEM
ACCESSORIES
SECTION 11-B
HEATER SYSTEM
CONTENTS OF SECTION 11 -B
Paragraph Subject Page
11-5 Description and Operation of Heater
System (45000, 46000 and 48000
Series) 11-24
11-6 Description and Operation of Heater
System (49000 Series) 11-30
Paragraph Subject
11-7 Servicing Heater System Components
Page
11-30
(45000, 46000 and 48000 Series).
11-8 Servicing Heater System Components
(49000 Series) 11-33
11-9 Heater System Trouble Diagnosis . . 11-34
1 1-5 DESCRIPTION AND 46000 and 48000 Series cars is a
air-mix type system in which the
temperature of the air is varied
by diluting heated air with un-
heated air. The outside air, after
it enters the system, is divided
into two air streams. Part of the
The heater system for the 45000, air flow is diverted to the heater
DESCRIPTION AND
OPERATION OF
HEATER SYSTEM
(45000, 46000 and
48000 SERIES)
core and the balance of the air
flow is by-passed around the
heater core.
The heater system consists of
three major assemblies: (1) a
blower and air inlet assembly
(see Figure 11-30) which contains
INSTRUMENT PANEL
BLOWER AND AIR
INLET ASSEMBLY
Figure 11-30-Heater System - 45000, 46000 and 48000