Thermal Care NQA13 - Page 34

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Table 6 – Liquid Line Sizes for R410A
5 Ton Circuit (R410A)
7½ Ton Circuit (R410A)
Total
Equivalent
Length
(Ft)
Liquid Line Size (Inch OD)
Total
Equivalent
Length
(Ft)
Liquid Line Size (Inch OD)
Horizonta
l
or
Downflow
Upflow
1 to 5
Feet
Upflow
6 to 10
Feet
Upflow
11 to 15
Feet
Horizonta
l
or
Downflow
Upflow
1 to 5
Feet
Upflow
6 to 10
Feet
Upflow
11 to 15
Feet
25
½
½
½
½
25
⅝
⅝
⅝
⅝
50
½
½
½
½
50
⅝
⅝
⅝
⅝
75
½
½
½
½
75
⅝
⅝
⅝
⅝
100
½
½
½
¾
100
⅝
⅝
⅝
⅝
125
½
½
½
⅝
125
⅝
⅝
⅝
¾
150
½
½
⅝
⅝
150
⅝
⅝
⅝
¾
175
½
⅝
⅝
⅝
175
⅝
⅝
⅝
¾
200
½
⅝
⅝
⅝
200
⅝
⅝
⅝
¾
225
⅝
⅝
⅝
⅝
225
⅝
⅝
⅝
¾
250
⅝
⅝
⅝
⅝
250
⅝
⅝
¾
¾
275
⅝
⅝
⅝
⅝
275
⅝
⅝
¾
¾
300
⅝
⅝
⅝
⅝
300
⅝
⅝
¾
¾
10 Ton Circuit (R410A)
15 Ton Circuit (R410A)
Total
Equivalent
Length
(Ft)
Liquid Line Size (Inch OD)
Total
Equivalent
Length
(Ft)
Liquid Line Size (Inch OD)
Horizonta
l
or
Downflow
Upflow
1 to 5
Feet
Upflow
6 to 10
Feet
Upflow
11 to 15
Feet
Horizonta
l
or
Downflow
Upflow
1 to 5
Feet
Upflow
6 to 10
Feet
Upflow
11 to 15
Feet
25
⅝
⅝
⅝
¾
25
⅞
⅞
⅞
⅞
50
⅝
⅝
¾
¾
50
⅞
⅞
⅞
⅞
75
⅝
⅝
¾
¾
75
⅞
⅞
⅞
⅞
100
⅝
¾
¾
¾
100
⅞
⅞
⅞
1⅛
125
¾
¾
¾
⅞
125
⅞
⅞
⅞
1⅛
150
¾
¾
¾
⅞
150
⅞
⅞
⅞
1⅛
175
¾
¾
¾
⅞
175
⅞
⅞
⅞
1⅛
200
¾
¾
¾
⅞
200
⅞
⅞
⅞
1⅛
225
¾
¾
¾
⅞
225
⅞
⅞
⅞
1⅜
250
¾
¾
¾
⅞
250
⅞
⅞
⅞
1⅜
275
¾
¾
¾
1⅛
275
⅞
⅞
⅞
1⅜
300
⅞
⅞
⅞
1⅛
300
⅞
⅞
⅞
1⅜