Lennox International Inc. GWB9-075IH-2 Manuel D’Utilisation
7
Table 3 - 90 - 50/75 SERIES 2 PROPANE GAS
MODEL 90-50
Stock Factory
Btu Value of Propane Gas++
Settings
2300
2350
2400
2450
2500
Altitude in Ft.
0-5,000
5,000-10,000
Normal Input (MBH)
50
–
–
–
–
–
Manifold Pressure In W.C.
2.5
3
3
2.5
2.5
2.5
Orifi ce
43331095
43331095
MODEL 90-75*
Stock Factory
Btu Value of Propane Gas++
Settings
2300
2350
2400
2450
2500
Altitude in Ft.
0-5,000
5,000-10,000
Normal Input (MBH)
75
–
–
–
–
–
Manifold Pressure In W.C.
2.5
3.5
3.5
3.5
3
3
Orifi ce
43331093
43331096*
* For model 90-75 Propane units only at altitudes above 5,000 ft., install 90-75 High Altitude Orifi ce Kit #550002629 For all other
altitudes use sea level orifi ce.
++Contact local gas utility or distributor for Btu value of gas.
BOILERS FOR USE AT HIGH ALTITUDE - UNITED STATES INSTALLATIONS
Model 90-75 propane (LP) units only at altitudes
above 5,000 ft., install 90-75 High Altitude Orifi ce Kit
#550002629*.
For all other altitudes use sea level orifi ce
For all other altitudes use sea level orifi ce