Workshop Manual

1A–22
HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
Duct Sensor
The duct sensor is the sensor to detect temperature
change of the side of evaporator blower coming by fresh
recirculation of intake door or “on” “off” of compressor.
The temperature is converted to resistant rate.
And it works as thermostat to control to prevent freezing
of evaporator.
This sensor is installed in the upper case of evaporator.
874R200010
Legend
(1) Sensor Part
(2) Evaporator Core
(3) Duct Sensor Assembly
(4) Evaporator Assembly
Refrigerant Line
Restriction in the refrigerant line will be indicated by:
1.Suction line — A restricted suction line will cause low
suction pressure at the compressor, low discharge
pressure and little or no cooling.
2.Discharge line — A restriction in the discharge line
generally will cause the discharge line to leak.
3.Liquid line — A liquid line restriction will be evidenced
by low discharge and suction pressure and
insufficient cooling.
Refrigerant flexible hoses that have a low permeability to
refrigerant and moisture are used. These low
permeability hoses have a special nylon layer on the
inside.
852RS001
Legend
(1) Reinforcement Layer (Polyester)
(2) External Rubber Layer
(3) Internal Rubber Layer
(4) Resin Layer (Nylon)