ALTROZ SERVICE MANUAL

HVAC 19 the Fresh Air Mode and Power A/C is selected. On turning the knob back to Chest/ Chest-Leg/Leg Mode from Leg Defrost/ Defrost Mode, the last selected settings are restored (provided that there has been no user intervention in between). The Mode knob Rotary ring Total Rotation Span is 270° with 5 detents, each of 67.5° (between detents), including both the end positions. The Position of the mode actuator is based on the Knob position of the Control Panel during the Ignition ON / OFF. PINOUT Pin NO. Rotation from Face to Def. Posi- tion Rotation from Def. to Face Posi- tion 1 Ground (Pot) Ground (Pot) 2 Feedback Signal From pot. to Con- trol Panel Feedback Signal From pot. to Con- trol Panel 3 +Ve (Pot.) +Ve (Pot.) 4 NC NC 5 Motor Grd. Motor +Ve 6 Motor +Ve Motor Grd. 14. INSPECTION OF MODE AND TEMPERATURE ACTUATOR The actuator door flap is positioned on the mode/temperature detent select by the user by means of the re- spective rotary knob. The control panel provides voltage corresponding to the user selected knob position. The servomotor in the actuator cause the door flaps to move to the desired location and provide a feedback signal to the control panel. 1. To calibrate the actuator follow the below steps 2. Turn the IGN OFF and disconnect the battery. 3.Wait for approximately one minute and then reconnect the battery. 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 Feedback Signal Values for Mode Actuator Sr. No. Detent Position Mode se- lected Knob angle in degrees (CW starting from ini- tial chest mode) voltage Min (V) Nominal (V) Max (V) 1 1 Chest 0º 1.0 1.05 1.1 2 2 Chest-Leg 67.5º 1.6 1.65 1.7 3 3 Leg 135º 2.23 2.28 2.33 4 4 Leg-Defrost 202.5º 2.87 2.92 2.97 5 5 Defrost 270º 3.48 3.53 3.58