This manual includes a parts list. It is imperative that all persons who are expected to install, operate or adjust this water heater read the instructions carefully so that they may understand how to perform these operations. Do not destroy this manual. Please read carefully and keep in a safe place for future reference. ! ! Recognize this symbol as an indication of Important Safety Information! California Proposition 65 Warning: This product contains chemicals known to the State of California

5 Installing the water heater. Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions Thermal Expansion Determine if a check valve exists in the inlet water line. It may have been installed in the cold water line as a separate back flow preventer, or it may be part of a pressure reducing valve, water meter or water softerner. A check valve located in the cold water inlet line can cause what is referred to as a “closed water sy

Inspect Shipment Inspect the water heater for possible damage. Check the markings on the rating plate of the water heater to be certain the type of gas supplied corresponds to the water heater requirements. Combustion and Ventilation Air Proper operation of the water heater requires air for combustion and ventilation. Provisions for combustion and ventilation air must comply with referenced codes and standards. When installed in a closet, DO NOT block or obstruct any of the combustion air inlet

Smith Water Heaters June 2GG7R щщщщщ Electric Water Heaters Energy Saver MANUFACTURED HOUSING MODEL NUMBER FIRST HOUR RATING GALLONS ENERGY FACTOR GALLON CAPACITY STD. VOLTAGE/WATTAGE RECOVERY 90°F RISE GALLONS R VALUE DIMENSIONS IN INCHES APPROX. SHIPPING WEIGHT (LBS) A B C ESM-20 - - 19.9 120V, 16S0 Watts B 12 34 26-1/2 17 76 ESM-30 43 .93 30 240V, 3B00 Watts 17 16 37-1/2 2B-1/4 20-1/2 90 ESM-40 51 .93 40 240V, 3B00 Watts 17 16 46 3B-1/4 20-1/2 115 ESM-SO 58 .9S SO 240V,

* Dual-channel system has 3. vent pipe inside 6. air intake pipe. ** R Value shown is “performance rated.” MODEL NUMBER FIRST HOUR RATING GALLONS ENERGY FACTOR GAL. CAP. BTU INPUT PER HOUR NATURAL RECOVERY 90.F RISE GALLONS PER HOUR R VALUE** A B C D E F VENT OUTLET* APPROX. SHIPPING WEIGHT (LBS) GDVS-40 68 .59 40 36,000 36 16 63-3/4 48-3/4 21 14-5/8 8 42 3 in 6 181 GDVH-40 71 .59 40 40,000 40 16 63-3/4 48-3/4 21 14-5/8 8 42 3 in 6 195 GDVS-50 77 .58 50 38,000 38 16 72-1/2 57-1/2 21 14-5/8 8 50-

Contact your gas supplier for any specific changes which may be required in your area. Use pipe joint compound or teflon tape marked as being resistant to the action of petroleum [Propane (L.P.)] gases. The appliance and its gas connection must be leak tested before placing the appliance in operation. The appliance and its individual Shut-off valve shall be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 pound per squar

Consult your sales representative or contact A. O. Smith for specifications and recommendations on which model is right for specific requirements. BTU Input Approximate Model Natural / Propane Hot Water Output (GPM) Shipping Number Minimum Maximum Maximum 45. F Rise 77. F Rise Weight (lbs) INDOOR MODELS ATI-305N 15,000 199,000/190,000 5.3 5.3 4.2 50 ATI-505N 15,000 199,000/190,000 8.5 7.4/7.1 4.2 50 ATI-705N 19,000 237,000 9.8 8.8 5.1 55 ATI-705AN* 19,000 237,000 9.8 8.8 5.1 55 OUTDOOR MODELS AT

To simplify the process, use this map to determine whether your installation location is in the Southern Zone, Central Zone or Northern Zone. Average Ground Water Temperatures SOUTHERN ZONE A v er age Ground W ater T emper atur e: 62°F to 77°F CENTRAL ZONE A v er age Ground W a ter T emper atur e: 52°F to 61°F NORTHERN ZONE A v er age Ground W a ter T e mper atur e: 37°F to 51°F Remote Controller All models come with a Remote controller that can set the temperature within a specific range. Prior

The best way to measure your incoming ground water temperature is to use a thermometer to measure cold water temperature during the coldest season of the year. To simplify the process, use this map to determine whether your installation location is in the Southern Zone, Central Zone or Northern Zone. Average Ground Water Temperatures SOUTHERN ZONE A v er age Ground W ater T emper atur e: 62°F to 77°F CENTRAL ZONE A v er age Ground W a ter T emper atur e: 52°F to 61°F NORTHERN ZONE A v er age Gro

To simplify the process, use this map to determine whether your installation location is in the Southern Zone, Central Zone or Northern Zone. Average Ground Water Temperatures SOUTHERN ZONE A v er age Ground W ater T emper atur e: 62°F to 77°F CENTRAL ZONE A v er age Ground W a ter T emper atur e: 52°F to 61°F NORTHERN ZONE A v er age Ground W a ter T e mper atur e: 37°F to 51°F Remote Controller All models come with a Remote controller that can set the temperature within a specific range. Prior