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Installation Instructions
Bosch IDS BOVB20 Split System Heat Pump - BTC 761701316 C (02.2022)
3.2 Refrigerant Piping Limits
System
Capacity
Model
Liquid
Line
Suction
Line
Total Equivalent Length - Feet
25
50
75
100
125
150
Inch O.D.
Maximum Vertical Separation - Feet
2 Ton
3/8 *
3/4 Std.
25
50
45
40
30
25
5/8 Opt.
25
50
45
40
30
25
3 Ton
3/8 *
3/4 Std.
25
50
50
50
35
25
5/8 Opt.
25
50
50
50
35
25
4 Ton
3/8 *
7/8 Std.
25
50
50
40
30
25
3/4 Opt.
25
50
50
40
30
25
5 Ton
3/8 *
7/8 Std.
25
50
50
40
30
25
3/4 Opt.
25
50
50
40
30
25
1 1/8 Opt.
25
40
N/A
N/A
N/A
N/A
Table 2
* Standard line size is recommended;
N/A: Application not recommended;
Refrigerant charge: refer to Sec. 14
Maximum line equivalent length = 150 feet.
Maximum vertical equivalent length = 50 feet.
Use only the line diameters indicated in Table 2.
If the suction linesets are greater than 50 feet, do not use a larger suction
line than recommended.
Figure 3
Standard Lineset
Lineset 150' Max
Line Length
50' Max
Line Lift
50' Max
Line Lift
