Grain Systems PNEG-823 - Manual (Page 23)

8. Operating Procedure
PNEG-823 Deluxe Downwind Heater 23
20 HP-40 HP Units BTUs per Gauge Pressure (PSI) Propane
Models (Approximate)
High-Temperature 20 HP-40 HP 5/16" (0.313") Orifice
Operating Pressure (PSI)
Gauge Pressure (PSI) Required to Maintain Temperature (Approximate)
(20 HP-40 HP High-Temperature Propane Units Only)
2 4 6 8 10 12 14 15
All Models 1663135 2345140 2878779 3328663 3721115 4068100 4393548 4541914
Fan Model Static Pressure
Heat Rise (°F)
60 80 100 120 140 160 180
20 HP
2" 2 2 4 5 7 8 10
4" 1 2 3 4 5 7 8
6" 1 2 3 4 5 6 7
25 HP
2" 2 3 5 7 9 12 15
4" 2 3 4 6 8 10 13
6" 2 2 4 5 6 8 10
30 HP
2" 2 4 6 8 11 15
4" 2 4 5 7 10 13
6" 2 3 4 6 8 10 13
40 HP
2" 3 6 8 12
4" 3 5 7 11 14
6" 3 4 7 9 12