Roberts Gorden Vantage twin Fire Unitary Infrared Heater TF-250 - Manual (Page 62)

TF-S ERIES I NSTALLATION , O PERATION AND S ERVICE M ANUAL
56
13.2 Manifold Gas Pressure Setting
0
1
2
3
4
5
6
1
2
3
4
5
6
0
1
2
3
4
5
6
1
2
3
4
5
6
Manometer
Natural Propane
3.5"
10.5"
Control Side View of Heater