Page 58 - NG-1 1150, NG-1 1500, NG-1 2000, NG-1 3000 - Stand-Alone Nitrogen Generator System Installation Manual

Verify and document that the control box is properly installed: Yes No If No, explain: _________________________________________________________________________ Verify and document wiring between the control box and the vent is properly installed: Yes No If No, explain: _________________________________________________________________________ Verify the control box timer is programmed properly:
1. Mode is set to “E”
2. Scale is set to “20-60”
3. Range is set to “10h”
4. Dial is set to “34”
Turn On the control box. Verify and document control box is operating properly:
If No, explain: _________________________________________________________________________ Determine the pressure setting of the backpressure regulator of oxygen removal vent.
1.
Adjust
1. 2.
3. 4.
5.
Verify Verify Install Verify Verify Verify
The backpressure regulator setting must be below the cut-in or turn-on pressure of the nitrogen generator and above the low air alarm pressure of the fire sprinkler system.
the backpressure regulator setting on the oxygen removal vent:
Turn on the power switch to the control box and depress the “Vent” button.
Open and close the isolation ball valve on the oxygen removal vent to determine the pressure setting of the backpressure regulator.
Pull the knob out from the regulator to adjust pressure setting. Turn the knob clockwise to raise the pressure, counter-clockwise to lower the pressure.
Repeat process until desired pressure setting is achieved.
NOTE: This process can only be performed when fire sprinkler system is at normal operating pressure.
Once the desired pressure has been obtained on the backpressure regulator, push the knob onto the regulator until it clicks into place.
TFP1275
Page 57 of 84
and document the backpressure regulator set point:
and document the appropriate orifice in the oxygen removal vent: the appropriate orifice in the oxygen removal vent.
and document isolation ball valve left in open position:
All sprinkler systems in service:
the Fire alarm system in service:
___________
Yes No Yes No Yes No Yes No
Yes No
Yes
Yes Yes Yes
No
No No No