User manual BOSCH GWS 14-150 CI PROFESSIONAL

[. . . ] 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. · 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. · Immediately call your gas supplier from a neighbor's phone. [. . . ] 1/2" Black Iron pipe up to 10 feet, 3/4" Black Iron pipe up to 40 feet and 1" Black Iron pipe up to 150 feet distances. -It is strongly recommended that the LP Gas pipe be semi-rigid copper or Black Iron pipe from the outside regulator to the inlet of the 425 HN regulator. For semirigid copper piping: 5/8" up to 20 feet and 3/4" up to 60 feet distances. For Black Iron piping: 1/2" up to 45 feet and 3/4" up to 160 feet distances. THESE FIGURES ARE FOR 425 HN SUPPLY ONLY, ALL OTHER APPLIANCES IN THE BUILDING WILL NEED TO BE INCLUDED IN THE PIPE SIZING. National Fuel Gas Code requires that a sediment trap (drip leg) be installed on gas appliances not so equipped. The drip leg must be accessible and not subject to freezing conditions. Install in accordance with the recommendations of the serving gas supplier. WARNING: The heater must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 0. 5 psig. The water heater must be isolated from the gas supply piping system by closing the manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or more than 0. 5 psig. The water heater, including the pressure regulator provided with it, must not be operated at gas supply pressures in excess of 0. 5 psig. The ½" flexible hot water outlet line is supplied attached to the 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). Pipe to appropriate discharge Hot Cold Fig. 7 - Pressure Relief Valve OPERATING INSTRUCTIONS Before proceeding with the operation of the heater make sure that the system is filled with water. Open a hot water faucet to permit the water to fill the heater and the piping and to eliminate the air trapped in the system Close the hot water faucet after the water flows freely and all the air has escaped from the system. The water heater is now ready to operate. FOR YOUR SAFETY READ B EFORE 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. 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. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. - Do not touch any electric switch; do not use any phone in your building - Immediately call your gas supplier from a neighbor's phone. [. . . ] 16 - Flow chart of 425 HN 20 6 720 607 026 Fifteen Year Limited Warranty General B OSC H PRO water heaters are warranted by the Manufacturer (BOSCH) through Controlled Energy Corp. (CEC) will furnish a replacement heat exchanger and will furnish a replacement of any other part which fails in normal use and service within the applicable periods specified below, in accordance with the terms of this warranty. The CEC replacement will be warranted for the unexpired portion of the original warranty. This warranty will be valid only for water heaters in possession of the original purchaser as recorded on the warranty card. [. . . ]