UTICA BOILERS CCB-150 Instruction Manual page 25

Flow Meter – CCB 150 Only
Flow orifice – 4 GPM flow
rate through brazed plate
O-Ring
Turbine
Fixing spring: Remove to replace / clean
turbine, Pull to remove turbine
The flow meter senses the
flow rate of hot potable water
and adjusts firing rate
accordingly.
DHW Min flow rate to activate
burner is 0.69 gpm
Burner shuts off if flow rate
drops below 0.46 gpm