Page 19
TABLE 12
Supply and Manifold Pressure Settings at all Altitudes
Model
Input Size
Gas
0-4500 ft
4501-7500 ft
7501 - 10,000 ft
Supply Pressure
in.wg.
Min
Max
045
Nat
3.5
3.5
3.5
4.5
13.0
LP/propane
10.0
10.0
10.0
11.0
13.0
070
Nat
3.5
3.3
3.5
4.5
13.0
LP/propane
10.0
10.0
10.0
11.0
13.0
090
Nat
3.5
3.3
3.5
4.5
13.0
LP/propane
10.0
10.0
10.0
11.0
13.0
110
Nat
3.5
3.3
3.5
4.5
13.0
LP/propane
10.0
10.0
10.0
11.0
13.0
TABLE 13
Pressure Switch and Gas Conversion Kits at all Altitudes
Model
Input Size
High Altitude Pressure Switch Kit
High Altitude
Natural Gas Burner
Orifice Kit
Natural Gas to LP/Propane
Burner Orifice Kit
LP/Propane to
Natural Gas Burner
Orifice Kit
0-4500 ft
4501-7500 ft
7501 - 10,000 ft
7501 - 10,000 ft
0 - 7500 ft
7501 - 10,000 ft
0 - 7500 ft
045
No Change
No Change
80W51
73W37
11K49
11K44
73W81
070
80W52
090
No Change
110
80W52
NOTE -
A natural to LP./Propane gas changeover kit is necessary to convert this unit. Refer to the changeover kit installation instruction for the conversion
procedure.
