Required A/C Charge Adjustment

A new required charge adjustment on Legacy Line Single-Stage Air Conditioners has been put into place on the 1 1/2 and 2 ton models only. 

Contact the B-Y customer assurance team to learn more about the required charge adjustment. 

Situation: 

Condensing Units are usually factory charged for a 15 ft line set.  The 18K and 24K Sizes of the 114S, 24SCA4, and N4A4S condensers cannot hold enough charge for 15 ft of line set; additional refrigerant is required.  The Product Data only mentions this as a footnote at the bottom of the Physical Data Table. The installation Instructions mention it in the Check Charge section.  

Solution:  

Be aware of this change and properly adjust the charge. 

Add 18 oz. of refrigerant to the 18K units and 6 oz. of refrigerant to the 24K units to give you enough refrigerant for a 15 ft line set.  Then for all sizes, adjust the charge by adding or removing 0.6 oz/ft of 3/8 liquid line above or below 15 ft respectively. 

Use the Refrigerant Charge Adjustment Table if needed after you have made the initial adjustment. 

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