24
PNEG-823
Deluxe Downwind Heater
8. Operating Procedure
20 HP-40 HP Units BTUs per Gauge Pressure (PSI) Natural Gas
Models (Approximate)
High-Temperature 20 HP-40 HP 15/32" (0.469") Orifice
Operating Pressure (PSI)
Gauge Pressure (PSI) Required to Maintain Temperature (Approximate)
(20 HP-40 HP High-Temperature Natural Gas Units Only)
Low-Temperature Units BTUs per Gauge Pressure (PSI) Propane
Models (Approximate)
Low-Temperature all HP 7/64" (0.109") Orifice
Operating Pressure (PSI)
Low-Temperature Units BTUs per Gauge Pressure (PSI) Natural
Gas Models (Approximate)
Low-Temperature all HP 5/32" (0.156") Orifice
Operating Pressure (PSI)
1
2
3
4
5
6
7
All Models
1597824
2266320
2770656
3195648
3573216
3919776
4234416
Fan Model
Static Pressure
Heat Rise (°F)
60
80
100
120
140
160
180
20 HP
2"
0.75
1.25
1.75
2.5
3.25
4.25
5.5
4"
0.5
1
1.5
2
2.75
3.5
4.5
6"
0.5
0.75
1.25
1.75
2.25
3
3.75
25 HP
2"
1
1.75
2.25
3.5
4.75
6.25
4"
0.75
1.5
2.25
3.25
4
5.25
6.25
6"
0.5
1.25
1.75
2.5
3.25
4.25
5.5
30 HP
2"
1.25
2
3
4.5
6
4"
1
1.75
2.75
3.75
5
7
6"
0.75
1.5
2.25
3
4
5.25
7
40 HP
2"
1.75
3
4.5
6.25
4"
1.5
2.5
4
5.5
6"
1.25
2.25
3.5
4.75
6.75
2
4
6
8
10
12
14
15
All Models
203405
287160
351771
409203
457063
497744
538425
555176
1
2
3
4
5
6
7
All Models
177840
251712
308256
355680
397632
435936
470592
