Bosch BGH96M060B3B Installation Instructions Manual

Also see for BGH96 Series: Troubleshooting guide Installation, operation and maintenance manual User's information manual

4 2 |Installation InstructionsBosch 96% AFUE Condensing Gas Furnace - BTC 770503101 J (06.2023)Figure 36Fault LED Last error buttonThermostat connections FuseBlowerconnectionsEACBlower power inputUnit power input(115V/60HZ)TransformerHumidifierNeutral terminalsFurnace ControlFigure 37115V FIELD-SUPPLIEDDISCONNECTJ-BOX24VTERMINALBLOCKFOUR-WIREHEATING-ONLYNOTE 1NOTE 2 FIELD-SUPPLIEDDISCONNECTCONDENSINGUNITTHREEWIREFURNACECONTROLRGCGNDGNDFIELD 24V WIRINGFIELD 115V, 208/230V, WIRINGFACTORY 24V WIRINGFACTORY 115V WIRING208/230VTHREEPHASE208/230VSINGLEPHASEBLOWER DOORSWITCHWHTBLKWHTBLKNOTES: Connect Y1,Y/Y2-terminal in furnace as shown for proper blower operation.Some thermostats require a "C" terminal connection as shown.If any of the original w ire, as supplied, must be replaced, usesame type or equivalent wire.GND(two stage cooling system thermostat)TERMINALS1.2.3.R GY/Y2C Y1W1W/W1Y1W2W2NOTE 3Y1 connect two-stage cooling thermostat Y1(first stage cool) terminal.4.Y/Y2 connect two-stage cooling thermostat Y2(second stage cool)terminal.Y/Y2 connect single stage cooling system thermostat Y terminal.NOTE 45.NOTE 5Please connect W/W1 with single stage heat system thermostat terminalW,and W2 reserved.6.Y2Heating and Cooling Application Wiring Diagram with 2-Stage Thermostat