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Absolute Boilers ABS 1500-2000-2500-3000-4000
4.6 Water connection
The Absolute boiler is supplied with 4 inch # 150 ANSI flanges for both the inlet and outlet manifolds. It is advisable
to install a shut off valve for the both the supply and return to allow removal of the boiler in the future. All water
connections should be in compliance with national and local code requirements. The boiler shall not be used as pipe
anchor. The lower connection (blue) is for the return, the upper connection (red) is the supply.
The supply connection manifold
has the following ports connections
for:
1. Pressure Relief valve 2"NPT.
2. Air Separator.
3. Spare
4. Flow Switch
5. Supply Connection
6. NTC
7. Low Water Cut Off
8. Pressure Gauge
9. Aqua-state
The return connection tube has the following port
connections:
10. Returning Supply
11. NTC
12. Spare
13. PH Sensor
14. Gas Connection
15. Spare
16. Drain
9
14
32
4
3
2
1
8
6
5
7
13
12
11
10
16
15
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