What are the job description for HVAC Sales Support manager? and what should i have as skills to be qualified to this position?

THE SUPPORT ENGINEER SHOULD KNOW TO DO THE HEAT LOAD CALCULATION, EQUIPMENT SELECTION, STATIC CALCULATION FOR AIR HANDLING EQUIPMENT , SHOULD KNOW THE THUMP RULES OF HEAT LOAD CALCULATION, KNOW ABOUT MAINTENANCE OF EQUIPMENT LIKE MOTOR, MOTOR ELECTRICAL CAPACITY LIKE VOLTAGE, FREQUENCY, MAINTENANCE, FEEDING CABLE SIZING, NORMAL ELECTRICAL FAULTS TO SATISFY DURING INITIAL INSTALLATION TO PROTECT THE SUPPLIED ITEMS IN GOOD CONDITION.