Lamtec GFI35, Quick Reference

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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.
* At International Standard Atmosphere, ISA: 15 °C, 1013,25 hPa
Connection: Air
Air type combustion air
Operating pressure GFI48/70: min. 15 mbar + 6 mbar (0.217 psi + 0.087 psi ) per
metre of tube length
GFI89: min. 15 mbar + 5 mbar (0.217 psi + 0.072 psi) per
metre of tube length
Air temperature max. 80 °C (176 °F)
Relative 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)