1 instruction manual printed in the u.S.A 1207 09063340-000 place these instructions adjacent to heater and notify owner to keep for future reference. Commercial electric water heaters asme thank you for buying this energy efficient water heater from a.O. Smith water products company. We appreciate ...
2 safe installation, use, and service the proper installation, use and servicing of this water heater is extremely important to your safety and the safety of others. Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of...
3 general safety when servicing this unit, verify the power to the unit is turned off prior to opening the control cabinet door..
4 thank you for purchasing this water heater. Properly installed and maintained, it should give you years of trouble free service. Abbreviations found in this instruction manual: • ansi - american national standards institute • asme - american society of mechanical engineers • gama - gas appliance m...
5 dimensions and capacities data.
6 features and components note:your actual configuration may vary. Dve vertical water heater (typical)..
7 features and components note:your actual configuration may vary. Dhe horizontal water heater (typical)..
8 facts to consider about the location carefully choose a location for the new water heater. The placement is a very important consideration for the safety of the occupants in the building and for the most economical use of the appliance. Whether replacing an old water heater or putting the water he...
9 refrigerants, swimming pool chemicals, water softener chemicals, calcium and sodium chloride, waxes, and process chemicals are typical compounds which are potentially corrosive. These materials are corrosive at very low concentration levels with little or no odor to reveal their presence. Products...
10 table 1. Branch circuit wire size. These ampacities relate only to conductors described in table 310-13 of the nec. For ambient temperatures over 30°c, see correction factors, note 13 in the nec. Electrical general check the water heater model and rating plate information against the characterist...
11 electrical and recoveries data table 2..
12 wiring diagrams turn off the heater electrical supply before servicing any electrical components. 300-600 volts standard thermostat control wiring (wye)..
13 wiring diagrams turn off the heater electrical supply before servicing any electrical components. 208-240 volts, standard thermostat control wiring (delta).
14 hotter water can scald: water heaters are intended to produce hot water. Water heated to a temperature which will satisfy space heating, clothes washing, dish washing, and other sanitizing needs can instantly scald and permanently injure you upon contact. Some people are more likely to be permane...
15 instructions for installation of the valves. Before changing the factory setting on the thermostat, read the entire “temperature regulation” section in this manual. It is recommended that lower water temperatures be used to avoid the risk of scalding. It is further recommended, in all cases, that...
16 temperature-pressure relief valve operation the temperature-pressure relief valve must be manually operated at least once a month. Lift the lever at the top of valve several times until the valve seats properly and operates freely, see figure 2b. When checking the temperature-pressure relief valv...
17 troubleshooting checklist before calling for service, check the following points to see if the cause of trouble can be identified and corrected. Reviewing this checklist may eliminate the need of a service call and quickly restore hot water service. The illustration in the features and components...
18 warranty a. O. Smith corporation, the warrantor, extends the following limited warranty to the owner of this water heater: 1. The tank if the glass-lined tank in this water heater shall prove upon examination by the warrantor to have leaked due to natural corrosion from potable water therein, dur...
19 notes.
20 www.Aosmithwaterheaters.Com.
