Lennox LF24-100

Page 14
TABLE 9
NATURAL GAS MANIFOLD PRESSURES − in. w.g. (kPa)
LF24
UNIT
ALTITUDE – FEET (METERS)
0−2000
(0−610)
2001− 2500
(610−762)
2501 −3500
(763−1067)
3501 − 4500
(1067−1372)
4501 − 5500
(1372−1676)
5501 − 6500
(1677−1981)
6501 − 7500
(1981−2286)
LF24−100**
LF24−115**
LF24−300
3.5
(0.87)
3.5
(0.87)
3.5
(0.87)
3.5
(0.87)
3.4
(0.84)
3.3
(0.82)**
3.2
(0.79)**
LF24−145** 3.5
(0.87)
3.4
(0.84)
3.3
(0.82)
3.2
(0.79)
3.1
(0.77)
3.0
(0.74)**
2.9
(0.72)**
LF24−175*
LF24−230
3.5
(0.87)
3.5
(0.87)
3.5
(0.87)*
3.5
(0.87)*
3.5
(0.87)*
3.5
(0.87)*
3.5
(0.87)*
LF24−200
LF24−250
LF24−345
LF24−400
3.5
(0.87)
3.5
(0.87)
3.5
(0.87)
3.4
(0.84)
3.3
(0.82)
3.2
(0.79)
3.1
(0.77)
* The LF24−175 unit requires pressure switch change when installed at elevations above 2500 feet (762m). Order pressure switch 36W49. No
adjustment to switch is required.
* LF24 models −100, −115 and −145 require pressure switch change when installed at elevations above 5500 feet (1676m).
Order pressure switch
36W49. No adjustment to switch is required.
TABLE 10
LP/PROPANE GAS MANIFOLD PRESSURES − in. w.g. (kPa)
LF24
UNIT
ALTITUDE – FEET (METERS)
0−2000
(0−610)
2001− 2500
(610−762)
2501 −3500
(763−1067)
3501 − 4500
(1067−1372)
4501 − 5500
(1372−1676)
5501 − 6500
(1677−1981)
6501 − 7500
(1981−2286)
LF24−100**
LF24−115**
LF24−300
9.0
(2.24)
9.0
(2.24)
9.0
(2.24)
9.0
(2.24)
8.7
(2.16)
8.4
(2.09)**
8.1
(2.01)**
LF24−145**
9.0
(2.24)
8.7
(2.16)
8.4
(2.09)
8.1
(2.01
7.8
(1.94)
7.5
(1.86)**
7.2
(1.79)**
LF24−175*
LF24−230
9.0
(2.24)
9.0
(2.24)
9.0
(2.24)*
9.0
(2.24)*
9.0
(2.24)*
9.0
(2.24)*
9.0
(2.24)*
LF24−250 9.0
(2.24)
9.0
(2.24)
9.0
(2.24)
8.7
(2.16)
8.4
(2.08)
8.1
(2.01)
7.8
(1.94)
LF24−200
LF24−345
LF24−400
9.5
(2.37)
9.5
(2.37)
9.5
(2.37)
9.2
(2.28)
8.9
(2.21)
8.6
(2.13)
8.3
(2.06)
* The LF24−175 unit requires pressure switch change when installed at elevations above 2500 feet (762m). Order pressure switch 36W49. No
adjustment to switch is required.
* LF24 models −100, −115 and −145 require pressure switch change when installed at elevations above 5500 feet (1676m).
Order pressure switch
36W49. No adjustment to switch is required.