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INS-1500 & INS-2000 • 5403646 • REV F • 04/19
Filling the Sprinkler System and Purging:
1.
To fill the sprinkler system, open the N
2
Tank Outlet Valve (V03) on the nitrogen tank and open the bypass valve on the
Nitrogen Air Maintenance Device. See Fig. 30.
2. The pressure in the nitrogen tank and the air tank will decrease rapidly, causing the nitrogen generator to switch to Bypass
Mode.
3. The amber LED labeled "BYPASS" will turn on and the "Mode" on the IntelliGen
™
Display will turn to "Bypass Mode". This
indicates that the nitrogen generator is filling the system with air to meet the NFPA required 30 minute fill time.
4. The air compressor will also turn on.
5.
Allow the fire sprinkler system to reach the desired pressure. This should take 30 minutes or less.
6. As soon as sprinkler system supervisory pressure is reached, put the sprinkler system back into service by placing the
Nitrogen Air Maintenance Device in the maintenance position (refer to the Nitrogen Air Maintenance Device manual for
proper operation).
7.
When the sprinkler system(s) are completely filled, the nitrogen generator will repressurize the air tank and nitrogen tank.
The air compressor will turn off and the unit will automatically return to Nitrogen Generating Mode.
Note:
The amber LED labeled "BYPASS" should be off and the "Mode" on the IntelliGen
™
Display will display "N2 Mode".
8. Reset the Leak Rate by pressing the "MAINT" button on the IntelliGen
™
Display Keypad. Enter "0000" for passcode.
9. Move the cursor to "Excessive N2 Demand" and press "ENTER".
10. Press "ENTER" on the keypad to clear maintenance alert and reset Leak Rate (LR).
11.
You will receive confirmation that the alert has been cleared.
12. Press "ESC" to return to the main screen.
Fill only one fire sprinkler system at time. Doing multiple systems at once could lead to longer compressor
runtimes and possible damage to equipment. Allow air compressor to cool before beginning again.
Fig. 30
V03
AMD