Air Conditioner System - Opel 1900 1973 Service Manual

AIR CONDITIONER SYSTEM

DESCRIPTION AND OPERATION:
General Description of System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..."
Operation of Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS:
Diagnosis Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .."................... . . . . . . . . .
MAINTENANCE AND ADJUSTMENT:
Adjustment of Thermostatic Switch . . . . . . . . . . . . . . . . . . . . . . . . .
MAJOR REPAIR:
Removal 81 Installation Blower Switch . . . . . . . . . . . . . . . . . . . . . .
Removal & Installation Temperature Control Switch
Removal & Installation Resistor Assembly . . . . . . . . . . . . . .
Removal & Installation Blower Motor Assembly . .
SPECIFICATIONS:
Specifications .,...,,.,,..~.,.,..,,......,.,....,.,........,......,........ ,, . . . . . . .
DESCRIPTION AND OPERATION
GENERAL DESCRIPTION OF SYSTEM
The air conditioner is intended to give maximum
cooling comfort within the vehicle. To do this, care-
The system operates on recirculated air only and is
entirely independent of the vehicle heater.
Recirculated inside air is drawn into the unit, passed
through the evaporator core and into the car through
the adjustable outlets in the evaporator case.
Operation of Controls
System controls are the AIR knob controlling the
three speed blower motor switch and the TEMP
knob which controls the setting of the thermostatic
switch. When operating this system, the heater must
be off for maximum cooling.
Air Knob
Turning the AIR knob clockwise operates the three-
speed blower motor.
OPEL 1900 - MANTA
CONTENTS
Subject
T e m p K n o b
This knob may be regulated to control the degree of
cooling desired. Fully clockwise provides maximum
cooling; however, turning the knob to the center de-
tent position provides adequate cooling for highway
operation.
When maximum cooling is required, outside air
should not be admitted to the car.
When the unit is set for maximum cooling and the
vehicle is being driven continuously at highway
speeds or at elevations of 4,OOC!ft.
a possibility of the formation of ice on the evaporator
core fins.
DIAGNOSIS
TROUBLE DIAGNOSIS GUIDE
Insufficient Cooling
CHECK AIR FLOW
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