Lennox SL280DF070V36A Unit Information

Page 40
TABLE 20
Manifold Pressure Settings
Unit
Input
Gas
Orice Size
0 - 7500 ft.
Orice Size
0 - 7500 ft
1.
Manifold
Pressure in. wg.
0 - 4500 ft
Manifold
Pressure in. wg.
4500 - 7500 ft
Manifold Pressure
in. wg. 7500 -
10,000 ft
2
Supply Line
Pressure
in. w.g.
Low
Firer
High
Fire
Low
Fire
High
Fire
Low
Fire
High
Fire
Min Max
070
Natural .063 .055. 1.7 3.5 1.6 3.4 1.7 3.5 4.5 13.0
LP/propane
3
.034 .032 4.5 10.0 4.5 10.0 4.5 10.5 11.0 13.0
090
Natuarl .063 .055 1.7 3.5 1.5 3.0 1.7 3.5 4.5 13.0
LP/propane
3
.034 .032 4.5 10.0 4.5 10.0 4.5 10.0 11.0 13.0
110
Natural .063 .055 1.7 3.5 1.5 3.2 1.7 3.5 4.5 13.0
LP/propane
3
.034 .032 4.5 10.0 4.5 10.0 4.5 10.0 11.0 13.0
1
This is the only permissible derate for these units.
2
Natural gas high altitude orice kit required.
3
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.
NOTE - Units may be installed at altitudes up to 4500 ft. above sea level without modications.
TABLE 21
Unit
Input
High Altitude Pressure Switch Kit
0 - 4500 ft. 4501 - 7500 ft. 7501 - 10,000 ft.
070 No Change No Change 73W36
090 No Change 69W56 73W36
110 No Change 69W56 73W35
TABLE 22
Honeywell / Resideo Gas Valve Conversion Kits
Unit
Input
High Altitude
Natural Gas
Orice Kit
Natural Gas to LP/
Propane Kit
LP/
Propane
to Natural
Gas Kit
7501 -
10,000 ft
0 - 7500 ft
7501 -
10,000 ft
0 - 7500 ft
070
73W37 51W02 73W38 69W79090
110
TABLE 23
White Rodgers Gas Valve Conversion Kits
Unit
Input
High Altitude
Natural Gas
Orice Kit
Natural Gas to LP/
Propane Kit
LP/
Propane
to Natural
Gas Kit
7501 -
10,000 ft
0 - 7500 ft
7501 -
10,000 ft
0 - 7500 ft
070
73W37 11K51 11K46 77W09090
110

Lennox SL280DF070V36A Specifications

General

Brand	Lennox
Model	SL280DF070V36A
Category	Furnace
Language	English