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INSTALLATION INSTRUCTIONS
AND USERS MANUAL
HOT WATER STORAGE TANKS
MODEL: ST 1500-3000
FOREWORD
Before attempting to install this water heater please read the installation instructions.
An authorized installer must install the heater and commission it according to the local
valid requirements.
A.O. SMITH CANNOT ACCEPT ANY RESPONSIBILITY FOR GUARANTEE,
SERVICE AND/OR PRODUCT LIABILITY IN THE EVENT OF UNAUTHORIZED
CHANGES, PRODUCT MODIFICATIONS OR REPAIRS.
1
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Table of Contents
Related Manuals for A.O. Smith ST 1500
Summary of Contents for A.O. Smith ST 1500
- Page 1 Before attempting to install this water heater please read the installation instructions. An authorized installer must install the heater and commission it according to the local valid requirements. A.O. SMITH CANNOT ACCEPT ANY RESPONSIBILITY FOR GUARANTEE, SERVICE AND/OR PRODUCT LIABILITY IN THE EVENT OF UNAUTHORIZED CHANGES, PRODUCT MODIFICATIONS OR REPAIRS.
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Page 2: Table Of Contents
3.4 Maintenance 4. WARRANTY 4.1 Warranty in general 4.2. Warranty of the tank 4.3 Conditions for installation and use 4.4 Exclusions. 4.5 Scope of the warranty 4.6 Claims 4.7 No other obligations for A.O. Smith than those stated in this manual... -
Page 3: General
A thick, replaceable insulation jacket minimizes heat loss. 1.2 Controls. ST models are supplied without controls. 1.3 Dimensions 2 Hot water outlet 2” Clean out flange 6 Recirculation 1¼” 1 Cold water inlet/drain 2” ST 1500/2000 ST 2500/3000 Connection sizes Inlet 2" 2" Outlet Anode... -
Page 4: For The Installer
In each case appropriate valves and fittings should be used to ensure the system complies with the governing codes and appropriate building requirements. The maximum working pressure is 7 bars. A typical installation diagram for an un-vented installation is as follows: ST 1500/2000 ST 2500/3000 1500/2000 kWh/24h °C... - Page 5 1 = drain (on small tanks only) 2 = valve 3 = check valve 4 = pressure relive valve 5 = circulation pump sanitary water 6 = temperature sensor for boiler three way valve A = circulation line B = warm water C = cold water E = boiler water hot F = boiler water return...
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Page 6: Commissioning
2.3 Commissioning 2.3.1 Filling the tank 1. Check if any installed drain valve is closed. 2. Open the cold-water supply valve to the heater 3. Open all hot-water outlets in order to bleed all air from the system. The heater is filled when cold water runs out of all outlets. -
Page 7: Descaling
Empty the tank before opening the clean out opening. Descaling must be carried out with suitable descaling agents, which can be ordered form A.O. Smith distributors. To ensure that the clean out cover is watertight, the flange gasket should be replaced after every inspection. -
Page 8: Warranty
4. WARRANTY 4.1 Warranty in general If within one year of the original installation date of the tank supplied by A.O. Smith any part or component other than the tank shall prove upon examination by A.O. Smith, and in the exclusive opinion of the latter, to be defective in material and/or workmanship, A.O. -
Page 9: Exclusions
A.O. Smith will grant no other warranty or guarantee than the warranty detailed above. A.O. Smith will not be liable by virtue of this warranty or otherwise for damage to any persons or property, caused by parts or components, respectively the steel, glass-lined tank supplied by them. - Page 10 1 – Contents of flange kit Bag A Flange plate Designation Quantity Bolts Gasket Flange plate Bag D Bag D Flange collar and cover fixation screws and brackets Designation Quantite Brackets Parker screws Flange collar and cover Installation manuals ST 1500-3000 series...
- Page 11 2 – Mounting instructions for flange covers, anodes, T&P and insulation package IMPORTANT: Start with mounting two plug anodes in the lower and center anode opening on the side of the tank. In the top anode opening you need to mount the outlet anode with T-piece for T&P relieve valve (included) and thermometer (not included).
- Page 12 3 – Mounting instruction for rigid jacket Nota: top panels, once placed, fixate the jacket. 4 – Mounting of the flexible jacket Install the flexible jacket before mounting the clean out collar and cover. The collar serves as mould to cut the required opening in the jacket. In case the zipper is difficult to close, it might be neccessary to go through one heatng cycle.