Page 17 - NG-1 1150, NG-1 1500, NG-1 2000, NG-1 3000 - Stand-Alone Nitrogen Generator System Installation Manual
P. 17
NOTES: The run frequency of the nitrogen generator in this chart is based on nitrogen generator operation outside of the 14-day nitrogen inerting process with the vent closed.
Excessive cycle count could indicate an air compressor/nitrogen generator short cycling issue. Contact Johnson Controls before proceeding – visit the CONTACT US page at www.tyco-fire.com for the contact information by location.
Sprinkler Leak Rate to TYCO Nitrogen Generator Run Cycle Comparison
Generator Cycle Time
Time between cycles Hrs.
Cycles per Day
Cycles per Week
Generator Cycle Time
Time between cycles Hrs.
Cycles per Day
Cycles per Week
Leak Rate
psig (bar)/24 Hr
Leak Rate
psig (bar)/24 Hr
1.5 (.10) * 2.0 (.14) 2.5 (.17) 3.0 (.20) 3.5 (.24) 4.0 (.28) 4.5 (.31) 5.0 (.35) 5.5 (.38) 6.0 (.41)*** 6.5 (.45) 7.0 (.48) 7.5 (.52) 8.0 (.55) 8.5 (.59) 9.0 (.62) 9.5 (.66) 10.0 (.69) 10.5 (.72) 11.0 (.76) 11.5 (.79) 12.0 (.83) 12.5 (.86) 13.0 (.90) 13.5 (.93) 14.0 (.97) 14.5 (1.0)
80 <1 3 60 <1 3 48 <1 4 40 <1 5
34.3 <1 5 30 <1 6 26.7 <1 7 24 1 7 21.8 2 8 20 2 9 18.5 2 9 17.1 2 10
16 2 11
15 2 12 14.1 2 12 13.3 2 13 12.6 2 14
12 2 14 11.4 3 15 10.9 3 16 10.4 3 17
10 3 17 9.6 3 18 9.2 3 19 8.9 3 19 8.6 3 20 8.3 3 21
15.0 (1.0) 15.5 (1.1) 16.0 (1.1) 16.5 (1.2) 17.0 (1.2) 17.5 (1.2) 18.0 (1.2) 18.5 (1.3) 19.0 (1.3) 19.5 (1.3) 20 (1.4) 21 (1.4) 22 (1.5) 23 (1.6) 24 (1.7) 25 (1.7) 26 (1.8) 27 (1.9) 28 (1.9) 29 (2.0) 30 (2.1) 31 (2.1) 32 (2.2) 33 (2.3) 34 (2.3) 35 (2.4) 36 (2.5) **
8 3 21 7.7 4 22 7.5 4 23 7.3 4 23 7.1 4 24 6.9 4 25 6.7 4 25 6.6 4 26 6.3 4 27 6.2 4 27
6 4 28 5.7 5 30 5.5 5 31 5.2 5 33
5 5 34 4.8 5 35 4.6 6 37 4.5 6 38 4.3 6 39 4.2 6 40
4 6 42 3.9 7 43 3.8 7 45 3.7 7 46 3.6 7 47 3.5 7 48 3.4 8 50
* NFPA-13 Allowable leak rate.
** NFPA-25 Allowable leak rate.
*** Allowable leak rate for TYCO Nitrogen Generators. Higher leak rates may reduce the service life of
the nitrogen generator.
TFP1275 Page 16 of 84
