Determining Your Model No.

DETERMINING YOUR MODEL NO.
DETERMINING YOUR MODEL NO.

1. Enter the refrigerant and evaporating temperature of the low temperature system being subcooled into Table 1 and read the MBtu/hr per ton required to subcool the liquid from 100º F to 55º F.

2. Multiply the capacity in tons of the low temperature system by the MBtu/hr per ton in Step 1 to determine the subcooler capacity required.

3. The capacities shown in Teble 3 are based on subcooling R-502 with evaporated R-22. For subcooling other refrigerants with R-22, divide the calculated subcooler capacity required in Step 2 by the correction factor in Table 2 to determine the equivalent R-502 subcooling capacity required.

4. Subtract the evaporating temperature of the high temperature system from 55º F to determine the subcooler approach temperature.

5. Into Table 3, enter the Subcooler Capacity, at the approach temperature from Step 4 and select the Model whose capacity most closely matches the calculated equivalent capacity required per Step 3.