Grain Systems PNEG-297 - Manual (Page 17)

7. Operating Instructions
PNEG-297 Chi-Town Heater 17
BTU’s per Gauge Pressure (PSI) - Natural Gas Models Approximate
Gauge Pressure (PSI) Required to Maintain Temperatures (Approximate)
Operating Pressure (PSI)
1 2 3 4 5 6 7 8
397,280 562,640 688,480 793,520 888,160 973,440 1,051,440 1,126,320
Fan Model
Static
Pressure
Heat Rise °F
20 30 40 50 60 70 80
10 HP
2 1 1 2 3 4 6 7
3 1 1 2 3 4 5 7
4 1 1 2 3 4 5 6
5 1 1 2 2 3 4 5
15 HP
2 1 2 3 5 7 - -
3 1 2 3 4 5 8 -
4 1 2 3 4 5 7 -
5 1 2 2 3 5 6 8
20 HP
3 1 3 4 6 - - -
4 1 2 4 6 8 - -
5 1 2 4 6 8 - -
6 1 2 3 5 7 - -
25 HP
3 2 4 6 - - - -
4 2 3 6 - - - -
5 2 3 5 8 - - -
6 2 3 5 7 - - -
30 HP
4 2 4 7 - - - -
6 2 4 6 - - - -
8 2 3 5 7 - - -
10 1 2 4 5 7 - -
40 HP
4 3 6 - - - - -
6 3 5 - - - - -
8 2 4 8 - - - -
10 2 3 5 8 - - -