LAARS Mascot LX MLXC 175 MBH - Install and Operating Manual - Manual (Page 45)

Mascot LX Boilers and Water Heaters Page 41
GAS TYPE CO2 (%) RANGE
)
Natural 8.9 __ 9.9
Propane 9.9
__ 10.9
Table 17. CO 2 Range and Pressure Settings.
Figure 26. Adjustment Screws and Settings for CO
2
Manifold
Pressure
Screw
(under cap)
High-fire
setting
Adjustment Screws on
Gas Valve
Close door first, before
measuring CO2 Range
Low-fire
setting
Note: High and Low Fire CO2 settings
should be approximately equal.