HEXA

HVAC

INSPECTION

CALIBRATION CHECK

Every time the IGN is turned ON all the actuators will

travel to its end stops and come to rest at the desired

position selected in the control panel this is the cali-

bration that the system does. If this is not happening

then the system has to be calibrated as follows

1. Turn the IGN OFF and disconnect the battery.

2. Wait for approximately one minute and then re-

connect the battery.

3. Once the battery is connected again wait for one

minute and turn the IGN ON. Actuators are now

calibrated. Wait for one more minute after IGN is

turned ON until the actuators are calibrated.

Without removing the connector operate the respec-

tive knob and measure the voltage. The reading

should be as per the table below.

Motor Movement

DRIVE

Clockwise rotation (CW)

Mode: Defrost

Temperature: Full Cold

+4.9V

Counter Clockwise rotation (CCW)

Mode: Chest

Temperature: Full Hot

+0.5V

Maintain Position

+2.5V

I. AIR INLET ACTUATOR.

The actuator used to operate the air intake door is a

bi-directional with no feedback actuator. It controls

the air intake door through the air intake control volt-

age.

PINOUT

PIN NO

DESCRIPTION

A (+)

Vs+

B (-)

GND

INSPECTION