If you have a precharged line set good for 15 feet and the total length is 50 feet, how much refrigerant is required at 0.6 oz per foot?

To find out how much additional refrigerant is needed for the total length of the line set, start with the understanding that a precharged line set is designed to be effective for a specific length, which in this case is 15 feet. If the total length of the line set is 50 feet, it exceeds the precharged limit by a significant margin.

Calculate the excess length that requires additional refrigerant:

1. Subtract the precharged length from the total length: 50 feet (total length) - 15 feet (precharged length) = 35 feet.

Next, calculate the amount of refrigerant needed for the excess length:

2. Multiply the excess length by the amount of refrigerant required per foot: 35 feet × 0.6 oz/foot = 21 oz.

Now, convert the result into pounds for a clearer understanding of how refrigerant is measured:

3. There are 16 ounces in a pound, so: 21 oz ÷ 16 oz/lb = 1.3125 lbs.

To express this in pounds and ounces:

4. The whole number is 1 pound, and the remainder can be calculated: 0.3125 lbs ×