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5
. DO’S AND DONT’S FOR A/C SYSTEM
Sr.
NO.
DO’S
REASON
1
CLEAN CONDENSER DURING REGULAR
SERVICE OF THE VEHICLE
DIRTY CLOGGED CONDENSER RESULTS IN
A/C TRIPPING AND LESS COOLING.
2
MAINTAIN PROPER REFRIGERANT LEVEL
LESS REFRIGERANT RESULTS IN LESS
COOLING.
3
ADD RECOMMENDED OIL ~ QUANTITY IN
THE COMPRESSOR DURING REFRIGERANT
CHARGING.
ADEQUATE QUANTITY OF COMPRESSOR
OIL PREVENTS POOR PUMPING AND
PREMATURE WEARING OF INTERNAL
COMPONENTS.
4
CLEAN EVAPORATOR PERIODICALLY TO
REMOVE DUST AND FOREIGN PARTICLES.
CLOGGED EVAPORATOR RESULTS IN
LESS AIR FLOW AND REDUCED COOLING
5
ADJUST FRESH AIR AND HEATER CABLE
PROPERLY TO CLOSE DAMPER’S FIRMLY.
UNADJUSTED CABLE WILL RESULT IN MIX-
ING OF HOT AIR WITH COOL AIR.
6
EDUCATE CUSTOMER ON PROPER USAGE
OF A/C CONTROLS (REFER OWNERS MAN-
UAL).
PROPER USAGE OF A/C CONTROL WILL
GIVE OPTIMUM COOLING.
7
ADJUST PROPER ENGINE RPM.
LESS RPM WILL RESULT IN STALLING OF
ENGINE AND LESS COOLING.
8
CHECK COOLANT LEVEL AND ENSURE
PROPER TUNING OF ENGINE
THIS WILL PREVENT OVERHEATING OF
ENGINE
9
CHECK PROPER BELT TENSION.
LOOSE BELT WILL SLIP AND OVER TIGHT
BELT WILL RESULT IN NOISE AND PREMA-
TURE FAILURE OF MAGNETIC CLUTCH OF
THE COMPRESSOR.
10
WHEN USING HEATER AIWASY TURN ON
THE A/C
THIS WILL AVOID THE FOGGING
Sr.
NO.
DONT’S
REASON
1
DO NOT USE A/C WITH FRESH MODE OPEN
IN DUSTY ENVIRONMENT
THIS WILL LEAD TO MIXING OF OUTSIDE
AIR WITH COOL AIR INSIDE THEREBY RE-
DUCING COOLING EFFECT.
3
DO NOT OPERATE A/C WITH OUT REFRIG-
ERANT IN THE SYSTEM.
THIS WILL RESULT IN PREMATURE FAIL-
URE OF COMPRESSOR.
4
DO NOT LEAK CHECK THE A/C SYSTEM
WITH MORE THAN 20 KG/CM’ PRESSURE.
HIGHER PRESSURE MAY RESULT IN DAM-
AGE TO A/C COMPONENTS.
5
DO NOT LEAVE A/C JOINTS OPEN.
MOISTURE TENDS TO ENTER THE A/C
SYSTEM IF THE JOINTS REMAIN OPEN FOR
LONG TIME
6
DO NOT CHARGE REFRIGERANT IN THE
A/C SYSTEM WITHOUT CARRYING OUT
PROPER VACUUM.
IMPROPER OR NO VACUUMING OF THE A/C
SYSTEM RESULTS IN LESS COOLING
CONDITIONS