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. 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. [. . . ] After verifying that required gaskets are in place, tighten appropriate fittings to stop leak. Turn the gas on and check again with a soapy solution. Never test for gas leaks using a match or flame. 9 Fig. 4 - Vent Adaptor for High Altitude Installations GAS CONNECTIONS NOTE: The 425 HN is supplied with a gas pressure regulator that must be installed on the heater before attaching the gas supply line. Failure to install the gas regulator as shown in figure 5 will be a violation of CSA certification of the unit. The regulator supplied with the heater is preset for the gas shown on the rating plate to the correct pressure. It is an appliance level regulator designed for (low inlet) pressure (less than 1/ 2 Psig or 15" W. C. ) DO NOT connect to an unregulated or high pressure propane line or to a high pressure commercial natural gas line. GAS INLET PIPE PRESSURE TAP PLASTIC VENT CAP PRESSURE REGULATOR (with directional arrow on reverse side pointing upward) Fig. 5 - Installation of Gas Pressure Regulator The pressure regulator provided with the heater is adjusted to deliver the proper gas pressure (as indicated on the rating plate and in the manual for altitude up to 2000 feet (660 meters) above sea level. On appliances being installed above 2000 ft (660 meters) elevation, the inlet gas pressure should be set at installation to the value shown below. 6 720 607 026 GAS PIPING, CONNECTIONS and Gas Regulator Before connecting the gas supply, check the rating plate on the right side of the front cover to be sure that the heater is rated for the same gas to which it will be connected. In the United States: The installation must conform with local codes or, in the absence of local codes, the National Fuel Gas Code ANSI Z223. 1/NFPA 54. In Canada: The Installation should conform with CGA B149 INSTALLATION CODES and /or local installation codes. GAS LINE SIZING The gas supply piping should be sized according to the Applicable Plumbing Code for a maximum draw of 117, 000 BTUH. 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. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. WHAT TO DO IF YOU SMELL GAS - Do not try to light any appliance. - Do not touch any electric switch; do not use any phone in your building - Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions. - If you cannot reach your gas supplier, call the fire department. Use only your hand to push in the on/off control button. [. . . ] 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. to defects or malfunctions resulting from failure to properly install, operate or maintain the unit in accordance with the printed instructions provided; 2. [. . . ]