O-Ring Temperature Sensor PanelClampAir VentClipO-Ring O-Ring DHW Outlet ConnectionO-RingWasherGaugeElbowO-RingGas ValveO-RingSafety ValvePump Connecting ElementO-RingWasherValveO-RingMicroswitch AssemblyPumpPumpO-RingGasketBracketWasherPipeGrommetWasherPipe AssemblyClipHeat ExchangerClipDHW Outlet ConnectionMicroswitch AssemblyWasherHydraulic Outlet AssemblyPressure Differential AssemblyHydraulic Inlet AssemblyGasketGrommetTemperature SensorPipeThermostatPipePipeO-RingPipe AssemblyVesselO-Ring Go Back Combustion View Combustion Box View Drain Tap Grommet Pipe Pipe Assembly O-Ring O-Ring Vessel Temperature Sensor Thermostat Bracket Pipe Pipe Microswitch Assembly Washer Pressure Differential Assembly Microswitch Assembly Pump Pump O-Ring Air Vent Hydraulic Outlet Assembly Clip DHW Outlet Connection Washer Gauge DHW Outlet Connection Gasket Gasket Washer Temperature Sensor Heat Exchanger Gasket Gasket Hydraulic Inlet Assembly Pump Connecting Element O-Ring Safety Valve O-Ring Drain Tap Clip Washer Pipe Washer Grommet Pipe Assembly Clip Elbow O-Ring Gas Valve O-Ring Connector Panel Clamp O-Ring O-Ring Connector