Exalt
Venturi Replacement Kit
5
Table 1: Combustion Settings
NG 110, 155
NG 199
Propane
H
igh F
ire CO
2
Range
9.0 to 10.5%
8.5 to 10.5%
10.4 to 11.0%
O
2
Range
4.85 to 2.15 %
5.75 to 2.15 %
5.1 to 4.2 %
CO Max
150 ppm
200 ppm
Lo
w F
ire
CO
2
Range
9.0 to 10.0 %
8.5 to 10.0 %
10.4 to 11.0 %
Lower than or equal to High Fire CO
2
level
O
2
Range
4.85 to 3.0 %
5.75 to 3.0 %
5.1 to 4.2 %
Higher than or equal to High Fire CO
2
level
CO Max
10 ppm
Fig. 6: Throttle Screw Location
