IBC AHU Series, Installation & Operating Manual, Page: 30 / 75

Figure 30 Shears' opening
2.4 Connecting the appliance to the boiler
Generally it’s best to place the appliance as close as practical to the boiler. If placing the appliance
away from the boiler, ensure the piping system is designed to allow the easy removal of air from the
boiler piping and easy flushing of the system.
Copper Pipe Sizing BTU / HR Capacity
½" 16,000 BTU
¾" 36,000 BTU
1" 72,000 BTU
1¼" 110,000 BTU
Table 7 Pipe sizing
2.4.1 Sizing pumps
Note
To size the pump, refer to the Installation manual of the boiler manufacturer for boiler head
loss specifications.
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Section: Installation