Crown Boiler 32 User Manual
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41
Table 8: Water Boiler Supply & Return Pipe Sizes
Figure 31: Recommended Boiler Piping For
Combination Heating & Cooling Systems
Supply
Supply Water
Return
Return Water
Boiler
Header
Riser Connections
Header
Connections
Model
Size (in)
Quantity
Size (in)
Size (in)
Quantity
Size (in)
32-475
2
1
2
2
1
2
32-570
2
1
2
2
1
2
32-665
2 1/2
1
2 1/2
2 1/2
1
2 1/2
32-760
2 1/2
1
2 1/2
2 1/2
1
2 1/2
32-855
2 1/2
1
2 1/2
2 1/2
1
2 1/2
32-950
3
1
3
3
1
3
32-1045
3
1
3
3
1
3
32-1140
3
1
3
3
1
3
32-1235
3
1
3
3
1
3
32-1330
3
1
3
3
1
3
32-1425
3
1
3
3
1
3
32-1520
3
2
2 1/2
3
2
2 1/2
32-1615
3
2
2 1/2
3
2
2 1/2
32-1710
3
2
2 1/2
3
2
2 1/2
32-1805
3
2
2 1/2
3
2
2 1/2
32-1900
3
2
3
3
2
3
32-1995
4
2
3
4
2
3
32-2090
4
2
3
4
2
3
32-2185
4
2
3
4
2
3
32-2280
4
2
3
4
2
3
32-2375
4
2
3
4
2
3
32-2470
4
2
3
4
2
3
32-2565
4
2
3
4
2
3
32-2660
4
2
3
4
2
3
32-2755
4
2
3
4
2
3
32-2850
4
2
3
4
2
3
Note: 1.The pipe sizes listed above are nominal trade sizes for Schedule 40