UTICA BOILERS CCB-150 Instruction Manual page 10

8 Domestic Hot Water Outlet
9 Domestic Cold Water Inlet
10 Heating System Supply
11 Heating System Return
27 Copper Exchanger for Heating and Hot Water
32 Heating Circulating Pump
36 Automatic Air Vent
42 DHW Temperature Sensor
95 Diverter Valve
114 Water Pressure Switch
136 Flow Meter
241 Automatic Bypass
278 Double Sensor (Safety + Heating)
Plumbing Circuit CCB - 150