Lennox ML180UHE Series User Manual

Page 23
TABLE 12
Manifold Pressure Settings at all Altitudes
Model
Input Size
Gas 0 - 2000 ft. 2001 -4500 ft . 4501 - 7500 ft.
7501 - 10,000
ft
Line Pressure in. wg.
Min Max
045
Nat 3.5 3.2 3.0 3.5 4.5 13.0
LP/Propane 10.0 10.0 10.0 10.0 11.0 13.0
070
Nat 3.5 3.2 2.8 3.5 4.5 13.0
LP/Propane 10.0 10.0 10.0 10.0 11.0 13.0
090
Nat 3.5 3.2 2.7 3.5 4.5 13.0
LP/Propane 10.0 10.0 9.6 10.0 11.0 13.0
110
Nat 3.5 3.5 3.0 3.5 4.5 13.0
LP/Propane 10.0 10.0 9.6 10.0 11.0 13.0
135
Nat 3.5 3.5 2.9 3.5 4.5 13.0
LP/Propane 10.0 10.0 9.6 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
Natuarl Gas
Orice Kit
LP/Propane Oricice Kit
Natuarl Gas
Orice Kit
045 0-4500 ft 4501-7500 ft 7501-10,000 ft 7501-10,000 ft 0-7500 ft 7501-10,000 ft 0-7500 ft
070
No Change
80W52 80W51
73W37 11K49 11K44 73W81
110 80W52 80W51
090 80W52 80W51
110 80W57 80W52
135 80W52 80W51
NOTE - A natural to L.P. propane gas changeover kit is necessary to convert this unit. Refer to the changeover kit instal-
lation instruction for the conversion procedure.

Lennox ML180UHE Series Specifications

General

Brand	Lennox
Model	ML180UHE Series
Category	Furnace
Language	English