Bosch 940 ES Installation Manual

Also see for 830ES: Technical service bulletin Technical service bulletin Technical service bulletin Applications manual Installation manual

6 720 644 930Warning31 WarningFor your safetyDo not store or use gasoline or other flammable,combustible or corrosive vapors and liquids in thevicinity of this or any other appliance.Warning: Carefully plan where youinstall the heater. Correct combustionair supply and flue pipe installation arevery important. If a gas appliance is notinstalled correctly, fatal accidents canresult, such as carbon monoxidepoisoning or fire.Warning: Exhaust gas must be ventedto outside using stainless steel ventmaterial suitable for category III ventsystems and temperatures up to 480°F.Vent piping must be sealed gas-tight toprevent possibility of flue gas spillage,carbon monoxide emissions and risk offire, resulting in severe personal injuryor death. Approved vent terminatorsmust be used when penetrating to theoutside.Warning: Place the heater in a locationwhere water leaks will do NO DAMAGEto adjacent areas or lower floors.Warning: Field wiring connections andelectrical grounding must comply withlocal codes, or in the absence of localcodes, with the latest edition of theNational Electric Code, ANSI/NFPA 70,or in Canada, all electrical wiring mustcomply with the local codes and theCanadian Electrical Code, CSA C22.1Part 1.Warning: Shock hazard: line voltage ispresent. Before servicing the waterheater, unplug power supply cord fromoutlet. Failure to do so could result insevere personal injury or death.Warning: The heater must bedisconnected from the gas supplypiping system during any pressuretesting of that system at test pressuresequal to or more than 0.5 psig.Warning: The appliance should belocated in an area where leakage of theheater or connections will not result indamage to the area adjacent to theappliance or to lower floors of thestructure. When such locations cannotbe avoided, it is recommended that asuitable drain pan, adequately drained,be installed under the appliance. Thepan must not restrict combustion airflow.Warning: The maximum inlet gaspressure must not exceed the valuespecified by the manufacturer and theminimum value listed is for the purposeof input adjustment.Warning: If a water heater is installed ina closed water supply system, such asone having a backflow preventer in thecold water supply line, means shall beprovided to control thermal expansion.Contact the water supplier or localplumbing inspector on how to controlthis situation.Warning: Keep appliance area clearand free from combustible materials,gasoline and other flammable vaporsand liquids.Warning: Do not obstruct the flow ofcombustion and ventilation air.Warning: Precautions must be takenprior to manually operating the reliefvalve to avoid contact with hot watercoming out of the relief valve and toprevent water damage.Caution: Label all wires prior todisconnection when servicing controls.Wiring errors can result in improper anddangerous operation.Verify proper operation after servicing.