Typical piping applications (cont.):
Figure 8_Primary/Secondary Piping of a Single Boiler - 2 1/2" Valve
A = BLENDED WATER 
B = FROM 
BOILER 
OUTLET
C = SYSTEM
RETURN
WATER
DETAIL
Note: Valve must be installed
with proper port orientation. Failure to observe port markings on the valve body prior to installing the valve could result in damage to the unit.
DETAIL
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| . |
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| DIA |
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| PIPE | |
| 4 | APART | |
| EXCEED.OF | 12” |
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NOT | TO MAX |
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A |
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OR |
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NOTES: 1) Unit(s) high limit must be set at max.
2)Inlet and outlet connections to the boiler are shown for reference only. Actual connections may vary from those represented here. Consult the Installation and Service Manual for actual locations.
3)Unit(s) pump should operate only during firing periods.
Figure 9_Primary/Secondary Piping of Multiple Boilers - 2 1/2" Valve for each boiler
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|
| . |
|
|
| DIA |
|
| PIPE | |
| 4 | APART | |
| EXCEED.OF | 12” |
|
NOT | TO MAX |
|
|
A |
|
| |
OR |
|
| |
NOTES: 1) Unit(s) high limit must be set at max.
2)Inlet and outlet connections to the boiler are shown for reference only. Actual connections may vary from those represented here. Consult the Installation and Service Manual for actual locations.
3)Unit(s) pump should operate only during firing periods.
INS7238 Rev C | 4 of 8 |
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