G: Relays Ls1 - Ls4; H: Blend Door Actuator - freightliner Park Smart Technical Information

G: Relays
Location: On the control center
LS1
. This relay controls the voltage
to the compressor controlling section of the
Control PCB Assembly when in the
(ENGINE ON MODE)
LS2.
This relay controls the voltage to the
condenser fan and the evaporator blower when
in the (ENGINE ON MODE)
LS3.
. This relay controls the voltage to the
compressor controlling section of the Control
PCB assembly when in the (PARKED MODE
OR ENGINE OFF-KEY ON MODE)
LS4.
This relay controls the voltage to the
condenser fan and the evaporator blower when
in the (PARKED MODE OR ENGINE
OFF-KEY ON MODE)

H: Blend Door Actuator

This actuator operates the blend door, changing
the air flow path through the Park Smart evaporator
coil and heater core.
100 A
100 A
LS3
100 A
100 A
LS1 LS2
5
LS4