AAON CB-024 - Table 2 - Predetermined Line Sizes for CB Units with Two Step Compressors and R-410 A; Figure 6 - Riser Height Versus Total Equivalent Line Length

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Table 2 - Predetermined Line sizes for CB units with two step compressors and R-410A
Model
Connection Sizes
Predetermined Line Size
Liquid
Suction
Hot Gas
Liquid
Suction
HGBP*
HGRH**
CB-024
3/8”
3/4”
3/8”
3/8”
3/4”
3/8”
3/8”
CB-036
3/8”
3/4”
3/8”
3/8”
3/4”
3/8”
1/2”
CB-048
3/8”
7/8”
1/2”
1/2”
7/8”
1/2”
1/2”
CB-060
3/8”
7/8”
1/2”
1/2”
7/8”
1/2”
1/2”
* Hot Gas Bypass line
** Hot Gas Reheat line
Figure 6 - Riser height versus total equivalent line length
Note: Figure 6 is for R-410A split system applications with two step compressor CB-024
through CB-060 units. The region of acceptable riser height is the lighter area. Select the
corresponding predetermined line size from Table 2 above.
Total Equivalent Line Length in this
figure is limited to 160 equivalent
feet.
CAUTION