Bosch Appliances 250SX LP, 250SX NG manual NOTE on a first time initial instal

Appliance details

NOTE: on a first time initial instal-

ilation or after gas line work has been done, existence of air in the gas line will cause ignition delay when the hot water is turned on. This will result in an error (EA) on the units display screen. This is normal. When this occurs, leave the hot water running and wait 3-5 seconds, then reset the unit (Fig. 26, pos. 2). Wait for (EA) to disap- pear. The heater will begin to at- tempt ignition again, if the (EA) reappears then repeat this same process until all air has been bled from the gas line.

When the heater is in operation you will hear its power vent fan and burner operating. Upon turning off the hot water flow the power vent fan will continue to operate for up to 60 seconds to exhaust all flue gases. The power vents fan speed is variable depending on the rate of hot water used and the burner output.

TO TURN OFF GAS TO APPLIANCE

BTurn off the manual gas shut off on the supply line to the heater and set the ON/OFF switch to the OFF (0) position. Note: a manual gas shut off valve is not supplied with the heater.

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