!WARNING
Tank MUST be full of water before power is turned on. Heat exchanger coil WILL BE DAMAGED if ener- gized even for a short time while the tank is dry. The water heater’s warranty does not cover damage or failure resulting from operation with an empty or par- tially empty tank. (Reference is made to the limited warranty for complete terms and conditions)
ELECTRICAL CONNECTION
The electrical connection for the AdvantagePlus is on the left side of the combustion shroud. There is a 1/2" knock- out location for electrical connection. All electrical wiring must be performed by a qualified licensed electrician, and in accordance with National Electrical Code, or to the applicable local codes and standards. The electrical requirements are for standard 120 volts, 60 Hz., 10 amp service. It is recommended that an electrical disconnect switch be placed near the water heater, and that the con- nection to the AdvantagePlus be made using 3/8" extra- flex, or 3/8" greenfield (or equivalent). This unit must be wired with #14 AWG, and fused for no more than 15 amps. It is of extreme importance that this unit be properly grounded! Ground the water heater by con- necting the green wire in the electrical access compart- ment directly to the main building ground system. It is very important that the building system ground is inspected by a qualified electrician prior to making this connection. Once all connections have been made, the electrical access may be closed. It is very important that the electrical power is not turned on until gas and venting connections are completed and the tank is full of water.
A green LED is provided on the main control board. This LED must be illuminated when appliance is turned on for proper operation. Failure to illuminate means bad or missing ground or reverse polarity.
GAS CONNECTION
Gas supply shall not exceed a maximum inlet pressure of 14" water column (350 mm), 1/2 pound pressure (3.4 kPa), and a minimum of 7" water column (natural and propane). The entire piping system, gas meter, and reg- ulator must be sized properly to prevent a pressure drop greater than 0.5" of water column as stated in the National Fuel Gas Code. Gas pressure information is listed on the rating plate. It is very important that you are connected only to the type of gas noted on the rating plate; "LP" or propane gas or "Nat" natural gas or city gas. All gas connections must be approved by the local gas supplier or utility in addition to the gov- erning authority prior to turning the gas supply on. The nipple provided for the inlet gas connection is 1/2", and it is mandatory that a 3/4" to 1/2" reducing bushing (pro- vided) is used, threaded into the branch of a 3/4" tee, and a drip leg fabricated, as per the National Fuel Gas Code.
You must ensure that the entire gas line to the reduc- ing bushing connection at the Advantage Plus is no smaller than 3/4".
!CAUTION
THE USE OF FLEXIBLE GAS CONNECTORS IS NOT RECOM- MENDED. HOWEVER, IF USED, IT IS IMPERATIVE THAT THEY ARE SIZED CORRECTLY. FLEXIBLE GAS CONNECTORS MUST HAVE A MINIMUM ID OF 3/4". A MINIMUM 3/4" ID MUST BE MAINTAINED TO AVOID RESTRICTION OF GAS FLOW! NEVER REDUCE THE GAS SUPPLY LINE BELOW 3/4"!
Once all the inspections have been performed, the piping system must be leak tested. If the leak test pressure is higher than the maximum permissible inlet pressure, you must isolate the AdvantagePlus from the gas line before testing. In order to do this, you must disconnect the union and cap the inlet gas line. In the event the gas valve is exposed to a pressure greater than 1/2 PSI, 14" water column, the gas valve must be replaced.
Failure to follow all precautions could result in fire, explosion or death! It is recommended that a soapy solution be used to detect leaks. Bubbles will appear and indicate a leak is present. The gas piping must be sized for the proper flow and length of pipe to avoid unaccept- able pressure drop. Both the gas meter and the gas reg- ulator must be properly sized for the total gas load. If you experience a pressure drop greater than 1" W.C., the meter or regulator or gas line may be undersized or in need of service. On the inlet side of the gas valve, there is a 1/8" NPT plug. This plug can be removed to attach a manometer. You can attach a meter to the incoming gas drip leg by removing the cap and installing the meter. The gas pressure must remain between 7" and 14" of water column during
!WARNING
Never use open flame to test for gas leaks, as bodily injury or property damage could result.
!WARNING
DO NOT exceed input shown on water heater rating plate.
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