Lennox EL196UH110XE60C

Page 45
TABLE 19
Supply Line and Manifold Pressure at All Altitudes
(inches w.c.)
Unit Fuel
Manifold
Pressure
Supply Line
All Nat 3.5 4.5 - 13.0
All LP/Propane 10.0 11.0 - 13.0
NOTE - A natural to L.P. propane gas changeover kit is necessary to con
vert this unit. Refer to the changeover kit installation instruction for the
conversion
procedure.
TABLE 20
Manifold and Supply Line Pressure 0-10,000ft.
EL196
Unit
Gas
Manifold Pressure in. wg.
Supply Line
Pressure
in. w.g.
0 - 10000 ft.
0-4500 ft. 4501-5500 ft. 5501-6500 ft. 6501 - 7500ft. 7501 - 10000ft.
All
Sizes
Natural 3.5 3.3 3.2 3.1 3.5 4.5 13.0
LP/propane 10.0 9.4 9.1 8.9 10.0 11.0 13.0
NOTE - A natural to L.P. propane gas changeover kit is necessary to convert this unit. Refer to the changeover kit installation instruction for the conversion
procedure.
TABLE 21
LP/Propane Conversion Kit and Pressure Switch Requirements at Varying Altitudes
EL196
Unit
Natural to
LP/Propane
High Altitude
Natural Burner
Orifice Kit
High Altitude
LP/Propane Burner
Orifice Kit
High Altitude Pressure Switch
0 - 7500 ft
(0 - 2286m)
7501 - 10,000 ft
(2286 - 3038m)
7501 - 10,000 ft
(2286 - 3038m)
4501 - 7500 ft
(1373 - 2286m)
7501 -10,000 ft
(2286 - 3048m)
-030 17H63 14C90 17H66 No Change 11U65
-045
*11K49 73W37 *11K44
No Change 11U65
-070 11U71 11U67
-090 11U70 11U64
-110 11U71 11U64
* Conversion requires installation of a gas valve manifold spring which is provided with the gas conversion kit.
Pressure switch is factory set. No adjustment necessary. All models use the factory-installed pressure switch from 0-4500 feet (0-1370 m).