User manual BOSCH GWS 8-115

[. . . ] In the Commonwealth of Massachusetts this product must be installed by a licensed plumber or gas fitter. Upon completion of the installation, these instructions should be handed to the user of the appliance for future reference. What to do if you smell gas · Close gas valve. · Do not try to light any appliance · Do not touch any electrical switch; do not use any phone in your building · If you cannot reach your gas supplier, call the fire department. [. . . ] Plastics or other PEX type plumbing line materials are not suitable for connecting directly to the water heater. Keep water inlet pipe to no less than ½" (19. 05mm) diameter to allow the full flow capacity. If the cold and hot connections to the heater are reversed, the heater will not function. The 425 EF is provided with one flexible type connector that must be connected to the cold inlet fitting of the water valve as shown in Fig. The union end of the flexible connector should be attached to the rear inlet port of the water valve with the supplied washer gasket. No pipe dope or thread tape is to be used at this joint. The ½" flexible hot water outlet line is supplied attached to the heater. Be certain there are no loose particles or dirt in the piping. Blow out or flush the lines before connecting to the water heater. Full port valves should be installed on both the cold water supply and hot water outlet lines to facilitate servicing the heater (see Fig. For installation on a private well system with the use of a pressure tank, the lowest pressure range setting recommended is 30-50 psi (2. 07-3. 45 bar). The listed pressure relief valve supplied with the heater must be installed at the time of installation. The pilot flame will extinguish 10-30 seconds after the burners come on. The burners will remain on until the hot water tap is turned off. NOTE: On a first time installation, existence of air in the gas supply line and in the water line may cause some ignition delay. In that case, repeatedly open and close the hot water tap in order to restart the ignition process until all the air has been purged. TO TURN OFF GAS TO APPLIANCE Turn off the manual lever on the gas supply line to the heater and set the ON/OFF switch to the OFF ( ) position, see Fig. 10. FOR YOUR SAFETY READ BEFORE OPERATING YOUR HOT WATER HEATER Warning: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. This appliance is equipped with electronic ignition for lighting the pilot and main burners. When turning the heater on, follow these instructions exactly. Before operating the unit, set the On/Off switch to the On ( ) position. The On/Off switch is located behind the flip-down coverplate on the front panel strip. Smell all around the appliance area for gas. [. . . ] This warranty will be valid only for water heaters in possession of the original purchaser as recorded on the warranty card. The heat exchanger If the heat exchanger fails within fifteen (15) years after the original installation and operation CEC will furnish a replacement heat exchanger. However, if the water heater is installed in other than a single family dwelling this heat exchanger warranty is limited to two (2) years from date of original installation and operation. Exceptions This warranty will not apply: 1. [. . . ]