Page 16 - NG-1 100, NG-1 250, NG-1 500 - Wall-Mounted Nitrogen Generator System Installation Manual
P. 16

120VAC/1 Phase 60 Hz Connections
      L1 N G
   220-240VAC 1 Phase 50 Hz Connections
L1 N G
     E Version
  Step 3a:
Figure 2
Plumb the Nitrogen/Air Supply Line – No Additional Air Compressor (Figure 3a)
The nitrogen/air discharge plumbing from the TYCO Nitrogen Generator must be connected directly to the dry or preaction valve trim using a minimum 1⁄2” black steel, galvanized steel, or copper lines. The size of the nitrogen/air supply line must be based on both the length of pipe between the nitrogen generator and fire sprinkler systems and the total volume of fire sprinkler systems being supplied.
NOTE: The TYCO Nitrogen Generator requires an in-line Air Maintenance Device (AMD) such as the TYCO AMD-1 which is equipped with an on-board field adjustable pressure regulator for each sprinkler system being served.
When an NG-1 100 or NG-1 250 nitrogen generator is connected to a single dry pipe or preaction system, the nitrogen generator can be installed without an AMD. Johnson Controls recommends a ball valve and a check valve be installed in the nitrogen/air supply line.
Air/Nitrogen Supply Line
Figure 3a
Dry Pipe/Pre-Action System Control Valve
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