23
3 Product Description
NOTICE
At temperatures in the combustion chamber of over 500 °C (932 °F), if the pilot burner is off,
a cooling air supply of 50% of the max. combustion air should be provided.
Connection: Air
Air type Combustion air
Operating pressure GFI48/70: min. 15 mbar (0.217 psi) + 6 mbar (0.087psi) per
metre of tube length
GFI89: min. 15 mbar 0.217 psi) + 5 mbar (0.087psi) per metre
of tube length
Air temperature max. 80 °C (176 °F)
Rel. air humidity max. 70 %
Air quality Free of dust, oil, grease and aerosols
The quality for the compressed air supply should conform to
ISO 8573-1:2010 class ( 7 : 4 : 4 ). Non-observance can
result in short-circuits due to material deposits in the housing.
Air ratio 0.3...0.5 (the remaining air quantity must be provided by the
combustion chamber)
Flow rate (air quantity) GFI48: max. 50 m
3
/h (65.39 yd
3
/h)
GFI70: max. 150 m
3
/h (196.19 yd
3
/h)
GFI89: max. 250 m
3
/h (326.98 yd
3
/h)
Operating modes
Permitted operating modes Intermittent operation/continuous operation
Ambient conditions during operation
Permissible ambient temperatures -20 ... +60 °C (-4 ... 140 °F)(without bar graph) 0 ... +60 °C
(32 ... 140 °F) (with bar graph)
Rel. air humidity Max. 85 % (non-condensing)
Ambient conditions for storage
Ambient temperature -20 ... +60 °C (-4 ... 140 °F)
Rel. air humidity Max. 85 % (non-condensing)
Thermal rating
Thermal rating GFI48: 70 ... 150 kW
GFI70: 150 ... 300 kW
GFI89: 400 ... 700 kW
SIL classification
Level SIL 3
Electrical safety
Protection class IP 65 / NEMA 4 / NEMA 4X
IEC
for integrated power unit Ex zone II: Ex ec IIB+H2 T4 Gc
To Next Page
Loading...
General