Removing front cover
Removing top service cover
Gas inlet connection on side
Gas supply line
4-4
SL 35-199, SL 45-260 MODULATING GAS BOILERS
4.2
GEOGRAPHY & COMPONENTS
NOTE
Vent stack piping and air intake
riser have been removed in some
of these photos for clarity
Gas valve
Ignition module
Sight glass (burner observation port)
Ignition wire boot
Fan housing
Fan motor
Ignition electrode/flame sensor
Fan pressure sensor
INSTALLATION AND OPERATION INSTRUCTIONS