___________________________________________________________________________________________________Second Part M130.30CM Maintenance Characteristic Verification_______________________________________________________________RIVA FP SERVICE MANUAL ñ REV A M130.30CM - 56 Circuit VoltagesFlow SwitchPrimary CircuitPumpSupplyNetworkGas Valve0120~120~24~Control p.c.b.0,3=FanSafetyThermostat0120~Air pressureSwitch0 0Control p.c.b.120~Fan and Air PressureDevice120~Fan and Air PressureDeviceFull Sequence Device120~120~Electrical voltages with burner on1