GENERAL DESCRIPTION
Continuously Variable Air Flow Control
The fan control amplifier, which utilizes transistor
circuits, continuously controls the air flow blown
out
by the blower, allowing for selection of the de-
sired air flowrate. The fan control amplifier
IS
housed in the blower motor unit. The heat-radiat-
ing plate of the amplifier
is placed in the stream of
the air flow to effectively cool the transistors
BLOWER MOTOR To blower relay M
AT AT
I - I __4;-..2 POWER TRANSISTOR
FAN CONTROL AMPLIFIER SHA255B
-Device for Distributing Cool Air -
to the Feet during " FACE MODE "
A vacuum actuator is used in the cool-air distribu-
tion device to remove the hot
air directed to the
floor area and distribute the optimum air tempera-
ture to the driver's compartment When the vac-
uum switch
is turned "ON", part of the outside air
(or part of the cool air on models equipped with
air conditioning systems) taken in the vehicle is
bypassed to the shower duct on the driver's side
through the operation of the actuator
4 Vacuum swfch IFloor ventilator Open-Close) 'Shower-ty pe nozzle (Driver sidel
Vacuum hose
a
HA-2
