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ACCESSORIES-HEATER
1-7
HEATER-AR-1,
AR-2 MODELS
Description
The hot water heating system (Fig. 1) incorporates
forced air ventilation. Forced air ventilation is ac-
complished by the use of an axial flow blower which
provides ventilation irrespective of vehicle speed.
The speed of the blower is controlled by a three speed
switch.
Temperature Control Lever-operates
the water
valve through a bowden cable. It is important that the
bowden cable be adjusted to provide full opening and
closing of the water valve for efficient functioning of
the system. When the lever is to the top, air is not be-
ing heated. Air temperature is increased by moving
the lever toward "WARM' down position.
Summer Ventilation-is
controlled by the opening
of the ventilator air damper.
Heating-air
enters through the cowl air intake,
passes through the heater core into the blower and
distribution duct through the opened shut-off damper.
Defrosting-is
controlled by the defroster damper.
For maximum defrosting or deicing the temperature
control lever must be set in the full warm position.
Off
Button-when
the
"OFF"
button is pushed in,
the system will not operate. The
OFF
button cuts off
the current from the control lever switch. The venti-
lation doors are closed, preventing outside air from
entering the vehicle.
Cool Button-opens the ventilation door to allow
outside air to enter the vehicle directly.
Defrost Button-causes a major portion of the air
to be forced against the windshield through air out-
lets on top of instrument panel for defrosting or de-
fogging.
Heat Button-causes
major portion of air to be di-
rected toward the floor of the vehicle.
HEATING THE VEHICLE
Until the engine warms up, make sure the
"OFF"
button is pushed in and the temperature control lever
is in the "WARM" position. Then, push in the
"Heat" button and leave the temperature control le-
ver in the "WARM" position. After warm-up, the
" L O button can be used and the temperature con-
trol lever adjusted to maintain the desired tempera-
ture. At lower outside temperatures and particularly
to obtain maximum rear seat heating performance,
it may be necessary to use the
"HI" button to provide
maximum air circulation. It is important to keep the
windows closed, particularly the front vent wings, to
eliminate objectional drafts and permit maximum air
flow to the rear of the vehicle.
NOTE:
When the heat button
is
pushed in, suffi-
cient warm air will be forced onto the windshield
through the upper air outlets for adequate defog-
ging during average driving conditions.
DEFROSTING OR DEFOGGING THE
WINDSHIELD
Push in the "Defrost" button for maximum de-
frosting, move the temperature control lever to the
"WARM position. Under particularly severe fog-
ging conditions, opening the front vent wings tem-
porarily, will speed up the removal of fog from the
windows.
SUMMER VENTILATION
Push in the "COOL" button to open the ventilation
door. Move the temperature control lever to the ex-
treme up position. The ventilation door may be left
open during rain.
REAR WINDOW DEFROSTER
A toggle switch (at left and under the instrument
panel) operates a blower which circulates air over the
rear window to prevent fogging.
DEFLECTOR A N D
HEATER BODY
VALVE ASSEMBLY
MOTOR A N D
FAN ASSEMBLY
DEFROSTER TUBES
Fig. I-Heafer
A R - I , AR-2 Models
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