Install Instructions

16
Technical specifications
Logano GC 144 II – 6 720 808 893 (2014/04) 29
16 Technical specifications
Main gas orifice identification and manifold pressure for Natural gas
Main gas orifice identification and manifold pressure for LP
Boiler size Number of orifices
Main gas orifice
identification
for elevations from [feet]
[in ft3/h] [inch W.C.]
0–8500 ft
1)
1) installation attitude
18/3 2 285 68.8 3.5
25/4 3 275 95.8 3.5
32/5 4 270 123.3 3.5
Table 14 Main gas orifice identification and manifold pressure for Natural gas at 60° F / 30 inch HG.
These values are only valid in the U.S.A. and only for elevations from 0 – 8500 ft.
Boiler size Number of orifices
Main gas orifice
identification
for elevations from [feet]
[in ft3/h] [inch W.C.]
0–8500 ft
1)
1) installation attitude
18/3 2 180 29.6 8.8
25/4 3 175 41.2 8.6
32/5 4 170 53 8.7
Table 15 Main gas orifice identification and manifold pressure for Natural gas at 60° F / 30 inch HG.
These values are only valid in the U.S.A. and only for elevations from 0 – 8500 ft.
Only convert the boiler from natural gas to LP by
consulting the conversion instructions
If the installation is over 8500 feet above see level,
please contact Buderus for another product option as
the GC 144 II is not approved above 8500 feet
operation.Do not attempt to alter this boiler without
consulting Buderus.