Lennox ML180UHE Simple Manual

ML180UHE / Page 8
OPTIONAL ACCESSORIES - MUST BE ORDERED EXTRA
“A” Width
Models
“B” Width
Models
“C” Width
Models
“D” Width
Models
CABINET ACCESSORIES
Horizontal Suspension Kit - Horizontal only 51W10 51W10 51W10 51W10
Return Air Base - Upow only 65W75 50W98 50W99 51W00
FILTERS
1
Air Filter and Rack Kit Horizontal (end) 87L95 87L96 87L97 87L98
Size of lter - in. 14 x 25 x 1 18 x 25 x 1 20 x 25 x 1 25 x 25 x 1
Side Return Single 44J22 44J22 44J22 44J22
Ten Pack 66K63 66K63 66K63 66K63
Size of lter - in. 16 x 25 x 1 16 x 25 x 1 16 x 25 x 1 16 x 25 x 1
VENTING
Vent Adaptor − 6 in. conn. size upow applications only 18M79 18M79 18M79 18M79
1
Cleanable polyurethane, frame-type lter.
GAS HEAT ACCESSORIES
Input
High Altitude
Pressure Switch Kit
Natural Gas to
LPG/Propane Kit
LPG/Propane
to Natural Gas Kit
Natural Gas
High Altitude
Orice Kit
0 - 4500 ft. 4501 - 7500 ft. 7501 - 10,000 ft. 0 - 7500 ft. 7501 - 10,000 ft. 0 - 7500 ft. 7501 - 10,000 ft.
045 No Change 80W52 80W51 70W89 76W15 73W81 73W37
070 No Change 80W52 80W51 70W89 76W15 73W81 73W37
090 No Change 80W52 80W51 70W89 76W15 73W81 73W37
110 No Change 80W52 80W52 70W89 76W15 73W81 73W37
135 No Change 80W52 80W51 70W89 76W15 73W81 73W37
HIGH ALTITUDE DERATE
NOTE - Units may be installed at altitudes up to 2000 ft. above sea level without any modications.
At altitudes above 2000 ft. units must be derated to match information in the shaded areas shown below.
NOTE - This is the only permissible derate for these units.
Input
Gas Manifold Pressure (Outlet) in. w.g. Line Pressure - in. w.g.
0 - 2000 Feet 2001 - 4500 Feet 4501 - 7500 Feet 7501 - 10,000 ft. Minimum
Maximum
Natural
Gas
LPG/
Propane
Natural
Gas
LPG/
Propane
Natural
Gas
LPG/
Propane
1
Natural
Gas
LPG/
Propane
Natural
Gas
LPG/
Propane
045 3.5 10 3.2 10 3 10 3.5 10 4.5 11 13
070 3.5 10 3.2 10 2.8 10 3.5 10 4.5 11 13
090 3.5 10 3.2 10 2.7 9.6 3.5 10 4.5 11 13
110 3.5 10 3.5 10 3 9.6 3.5 10 4.5 11 13
135 3.5 10 3.5 10 2.9 9.6 3.5 10 4.5 11 13
1
Natural Gas High Altitude Orice Kit required.

Lennox ML180UHE Specifications

General

Brand	Lennox
Model	ML180UHE
Category	Furnace
Language	English