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Canadian installations must be performed inaccordance with CAN/CGA-B149. Note: If using a flexible gas connector, make sure its rating tag matches or exceeds the input of the water heater. Tables 2, 3A, and 3B on page 20 are provided as a sizing reference for commonly used gas pipe materials. Consultthe “National Fuel Gas Code” for the recommended gaspipe size of other materials. Follow the instructions below and reference figure 19 for gas piping installation. 1. Install a readily accessible manual shut-off valve in the gas supply line as recommended by the local utility. Know the location of this valve and how to turn off the gas to this unit. Note: DO NOT pipe across clean-out port (100 gal. only.) 2. Install a drip leg as shown. The drip leg must be no less than 3 inches long for the accumulation of dirt, foreign material and water droplets. 3. Install a ground joint union between the water heaterand the manual shut-off valve. This is to allow easyservicing. 4. Turn the gas supply on and check for leaks. Use a chloride-free soap and water solution (bubbles formingindicate a leak) or other approved method. Note: Units with BTU/Hr inputs of 175,000 and above musthave a minimum of 3/4” NPT gas pipe supplied to the water heater. 20 Gas Pressure Testing Important: This water heater and its gas connection must be leak tested before placing the appliance in operation. • If the code requires the gas lines to be tested at a pressure of 14” W.C. or greater, the water heater and its manual shut-off valve must be disconnected from the gas supply piping system and the line capped. • If the gas lines are to be tested at a pressure less than 14” W.C., the water heater must be isolated from the gas supply piping system by closing its manual shut-off valve. Nationally listed/recognized fuel gas and carbon monoxide(CO) detectors are recommended in all applications and should be installed using the manufacturer’s instructions and local codes, rules, or regulations. Note: Air may be present in the gas lines and could prevent the burner from lighting on initial start-up. The gas lines should be purged of air by a qualified service technician after installation of the gas piping system. Explosion Hazard Have a qualifi ed person make sure L.P. gas pressure does not exceed 13” water column. Examples of a qualifi ed person include licensed heating personnel, authorized gas company personnel, and authorized service personnel. Failure to do so can result in death, explosion, or fi re. ELECTRICAL CONNECTIONS Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. If you lack the necessary skills required to properly install the electrical wiring to this water heater, do not proceed but have a qualified electrician perform the installation. When making the electrical connections, always make sure: • The voltage and frequency correspond to that specified on the water heater data plate on the front of the water heater. • The electrical supply has the proper overload fuse or breaker protection. The heater draws less than 7 amps. • Wire sizes and connections comply with all applicable codes. • Wiring enclosed in approved conduit (if required by local codes). • The water heater and electrical supply are properly grounded. • This water heater must be “hard-wired” - do not use an extension cord to supply electrical power to this water heater. Note: The wiring diagram can be found on page 22. Always reference the wiring diagram(s) for the correct electrical connections. When installing the electrical wiring to the water heater: 1. Shut off the power at the electrical service box. 2. Loosen the screws securing the access panel to the electrical compartment. (The electrical wiring diagram for 34 & 50 gal. models can be found on the inside of the access panel at the base of the water heater. For 100 gal. models the wiring diagram is located in the electrical compartment on the front of the water heater.) Set the access panel aside. 3. Connect the electrical supply to the water heater in accordance with local utility requirements and codes. Use only a dedicated electrical circuit containing a properly sized fuse or circuit breaker. Maximum overload protection should not exceed 15 amperes. 4. Connect this circuit (directly from the electrical service box) to an electrical disconnect switch. 5. Ground the water heater by connecting the electrical service ground wire to the green ground wire (provided). Note: The power supply to this water heater must be properly polarized, [120 volts from the hot lead (black) to ground and 0 volts from the neutral lead (white) to ground] otherwise, the unit will not operate. 6. After making all electrical connections, completely fill the tank with water and check all connections for leaks. Open the nearest hot water faucet and let it run for 3 minutes to purge the water lines of air and sediment and to ens...

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