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4. Install the Water Heater <br /> Z223.1/NFPA 54, or the Natural Gas and <br /> Topics . Propane Installation Code, CSA B149.1. <br /> • Installation Guidelines • The appliance, when installed, must be <br /> electrically grounded in accordance with <br /> • What you will need local codes or, in the absence of local <br /> • Choose Installation Location codes, with the National Electrical <br /> • Mount Water Heater to the Wall • Code,ANSI/NFPA 70, or the Canadian <br /> • Vent Water Heater Electrical Code, CSA C22.1. <br /> • Connect Water Supply • The appliance and its main gas valve <br /> • Install Isolation Valves must be disconnected from the gas supply <br /> • Install Pressure Relief Valve piping system during any pressure testing <br /> • Connect Condensate Drain of that system at test pressures in excess <br /> of 1/2 psi (3.5 kPa) (13.84 in W.C.). For <br /> • Connect Gas Supply system testing at pressures less than or <br /> • Connect Power Supply equal to 1/2 psi (3.5 kPa) (13.84 in W.C.) <br /> • Configure Parameter Settings the appliance must be isolated from the <br /> • Connect External Pump with Circ-Logic gas supply piping by closing its individual <br /> • Post-Installation Checklist manual shutoff valve. <br /> • You must follow the installation instructions <br /> THIS SECTION IS INTENDED FOR THE and those in section "4.5 Vent the Water <br /> INSTALLER Heater"for adequate combustion air and <br /> Installer qualifications:A trained and qualified exhaust. <br /> professional must install the appliance, inspect • If a water heater is installed in a closed <br /> it, and leak test the water heater before use. water supply system, such as one having <br /> The warranty will be voided due to any improper a backflow preventer in the cold water sup- <br /> installation. The trained and qualified professional ply line, means shall be provided to control <br /> should have skills such as: Gas sizing; Connecting thermal expansion. Contact the water sup- <br /> gas lines, water lines, valves, and electricity; plier or local plumbing inspector on how to <br /> Knowledge of applicable national, state, and control thermal expansion. <br /> local codes; Installing venting through a wall • Should overheating occur or the gas sup- <br /> or roof; and training in installation of tankless ply fail to shut off, turn off the manual gas <br /> water heaters. Training for Rinnai Tankless control valve to the appliance. <br /> Water Heaters is accessible online at www. (En cas de surchauffe ou si('alimentation <br /> trainingevents.rinnai.us. en gaz ne s'arrete pas, fermez manuelle- <br /> ment/e robinet d'arret de Fadmission de <br /> 41 Installation gaz.) <br /> • Combustion air must be free of chemicals, <br /> such as chlorine or bleach, that produce <br /> Guidelines fumes. These fumes can damage com- <br /> ponents and reduce the life of your appli- <br /> When installing the water heater, follow these ance. <br /> guidelines: <br /> • This water heater is suitable for combina- <br /> tion water heating and space heating and <br /> not suitable for space heating applications <br /> only. <br /> • The installation must conform with local <br /> codes or, in the absence of local codes, <br /> with the National Fuel Gas Code,ANSI <br /> Rinnai Tankless Water Heater Installation and Operation Manual 17 <br />