Lennox ML196UHE Installation Instructions Manual page 45

ML196
Gas
Unit
0 - 4500 ft 4501 - 5500 ft
Natural
All
Models
L.P. Propane
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.
Conversion Kit and Pressure Switch Requirements at Varying Altitudes
Natural to LP/
Propane
ML196 Model
0 - 7500 ft
(0 - 2286m)
-030 17H63
-045
-070
-090 *11K49
-110
-135
Pressure switch is factory set. No adjustment necessary. All models use the factory-installed pressure switch from 0-4500 feet (0-
1370 m).
Manifold and Supply Line Pressure 0-10,000ft.
Manifold Pressure in. wg.
5501 - 6500 ft
3.5 3.3
10.0 9.4
High Altitude
Natural Burner
Orifice Kit
7501 - 10,000 f t
(2286 - 3038m)
14C90
73W37
TABLE 15
6501 - 7500 ft 7501 - 10,000 ft
3.2 3.1
9.1 8.9
TABLE 16
High Altitude
LP/Propane Burner
Orifice Kit
7501 - 10,000 ft
(2286 - 3038m)
17H66
*11K44
Page 45
Supply Line Pressure
0 - 10000 ft.
3.5 4.5
10.0 11.0
High Altitude Pressure Switch
4501 - 7500 ft 7501 -10,000 ft
(1373 - 2286m) (2286 - 3048m)
11U65
11U65
11U71
11U70
11U71
11U70
in. w.g.
13.0
13.0
11U66
11U66
11U67
11U64
11U64
11U68