Page 18 - NG-1 100, NG-1 250, NG-1 500 - Wall-Mounted Nitrogen Generator System Installation Manual
P. 18

  House/Plant Air Supply Isolation Ball Valve
Nitrogen Supply Line
Air/Nitrogen Supply Line Isolation Ball
Dry Pipe/Pre-Action System Control Valve
             Nitrogen Generator
Step 4:
Figure 3c Plumb the Condensate Drain Line
  The TYCO Nitrogen Generator will occasionally discharge a small amount of condensate water from the coalescing filters inside the cabinet. It is recommended that the 1⁄4” drain connection be plumbed to a floor drain or building exterior. When plumbing to a drain is not feasible an evaporative collection chamber can be used.
Step 5: System Signals and Monitoring, where used
The nitrogen generator cabinet has two (2) system signals and five (5) outputs that can be monitored by the facility’s BMS or fire alarm system.
Two (2) system signals:
• Bypass Alarm - The nitrogen generator operating in the bypass mode which is activated when the bypass valve is in the “fast fill” position to fill the fire sprinkler system and the air supplied directly from the air compressor has reached a pressure of 20 psig (1.4 bar).
(Flashing amber light)
• Leak Monitor - The nitrogen generator is equipped with a leak monitor audible signal which is activated when the nitrogen generator runs excessively. (Audible signal)
Five (5) system output signals for monitoring through a building monitoring system, if desired:
• Nitrogen Generator Running Mode - Form C Contacts (Energized When Running, LED On)
• Bypass Mode Alarm - Form C Contacts (Normally De-Energized, LED Off)
• Nitrogen Generator Loss of Power - Form C Contacts (Normally Energized, LED On)
• Leak Monitoring - Form C Contacts (Normally De-Energized, LED Off)
• Nitrogen System Supply Line Pressure - Analog Signal
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