These recommended quantities are based on typical flush situations during a
conversion from R-22 to R-410A. In the event of compressor burn out double the
amount of flush required to compensate for the added soil load. This is for lines
only and do not calculate in any components outside the line set.
Line Size (in.)
3/8
1/2
5/8
3/4
7/8
1
1-1/8
1-1/4
1-1/2
1-5/8
1-3/4
1-7/8
2
Liquid Line (in.)
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
1 can
Treats
1 can
Treats
1 can
Treats
1 can
Treats
1 can
Treats
1 can
Treats
1 can
Treats
1 can
Treats
1 can
Treats
1 can
Treats
1 can
Treats
1 can
Treats
1 can
Treats
Suction Line (in.)
3/4
3/4
3/4
7/8
7/8
7/8
1
1
1
1-1/8
1-1/8
1-1/8
Feet per 8 oz. Can
250
200
150
100
50
42
39
36
31
28
26
25
23
Length
25
35
50
25
35
50
25
35
50
25
35
50
7
Feet per Ounce
31.3
25.0
18.8
12.5
6.3
5.3
4.9
4.5
3.8
3.6
3.3
3.1
2.9
Estimated Ounces
2.8
3.9
5.6
4.8
6.7
9.6
5.6
7.8
11.1
6.3
8.8
12.6