A.O. Smith 750 SERIES, GB/GW-300, 500, 650 warranty FCB Drawing #211759

Series 400, 401, 402, 403, 404 14-18 Lighting Instructions for the GB/W 300 through 750 models Lighting Instructions Risk of ScaldsBurner System Inputs To CCB and FCBCCB Drawing #211758 FCB Drawing #211759 PDB Drawing #211760 Outputs from CCB and FCBs CCB/FCB Indicator Lamps & FusesLine Polarity Indicator & Fuse Protection IgnitersFCB Eight position Dipswitch GB/LBTemperature Setpoints System Control Algorithm UIM Operating ProceduresStages 1 and 2 will turn on in sequence from 1 to Description of CCB control states Description of FCB control states Idle StateOperating Setpoint Operating Differential SetpointConnection Diagram Drawing #211769 Page UIM Touch Switches Fault Displayed Description Red LED Lockout HardSoft See below Other troubleshooting hints Page Page Page NEW Boiler Limited Warranty