SL 26-260 G3, SL 40-399 G3 MODULATING GAS BOILERS
3.3.1 Gas Valve and Fan Diagrams
Figure 37A: Gas Valve and Pressure Reference System - SL 26-260 G3
Figure 37B: Gas Valve and Pressure Reference System - SL 40-399 G3
3-4
INSTALLATION AND OPERATION INSTRUCTIONS