For all applications, main burners are factory set and should require no adjustment.
MAIN BURNER REMOVAL AND REPLACEMENT:
A clear flow of liquid refrigerant indicates sufficient charge in the system. Bubbles indicate undercharged system or the pres- ence of noncondensables. Moisture in the system measured in parts per million (ppm) changes the color of the indicator.
Green — moisture below 45 ppm (dry) Chartreuse — 45 to 130 ppm (caution!) Yellow — moisture above 130 ppm (wet)
Change filter driers at the first sign of moisture in the system. See Carrier Charging Handbook for more information.
IMPORTANT: Unit must be in operation at least 12 hours before moisture indicator can give an accurate reading. With unit running, indicating element must be in contact with liquid refrigerant to give a true reading.
Replace whenever the moisture/liquid indicator shows moisture in the system.
Source: Carrier (www.shareddocs.com)