Lennox Allied Air A93UH1E Installation Instructions Manual page 45

Capacity
030
045
070
090
110
* Conversion requires installation of a gas valve regulator spring which is provided with the gas
conversion Kit.
+ LP Kits include low line pressure switch.
Capacity
030
045
070
090
110
Pressure switch is factory set. No adjustment necessary. All models use the factory-installed pressure
switch from 0-4500 feet (0-1371 m).
507867-02
Burner Orifice Conversion Kits at Varying Altitudes
0 - 7,500 ft
(0 - 2,286 m)
Natural to LP/ LP/Propane to
Propane Natural
17H62+
11K50+ 73W80*
A93 and 92G1 Pressure Switch Requirements at Varying Altitudes
0 - 4500 ft
(0 - 1371m)
No Change
High Altitude
Natural Burner
Orifice Kit
N/A N/A
51W01
4501 - 7500 ft
(1371 - 2286m)
11U65
Table 13.
Issue 1922
7,501 - 10,000 ft
(2,286 - 3,048 m)
High Altitude
LP/Propane Burner
Orifice Kit
17H90
11K45+
7501 - 10000 ft
(2286 - 3048m)
11U66
Page 45 of 55