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A.O. Smith ST 1500 manual

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Table of contents for the manual

  • Page 1

    INSTALLATION INSTRUCTIONS AND USERS MANUAL HOT WATER STORAGE TANKS MODEL: ST 1500-3000 FOREWORD Before attempting to install th is water heater please read the insta llation instructions. An authorized installer must install the heat er an d commission it according to the local valid requirements. A.O. SMITH CANNOT ACCEPT ANY RESPONSIBILITY FOR GUA[...]

  • Page 2

    CONTENTS 1. GENERAL 1.1 Description of the heater 3 1.2 Controls 3 1.3 Dimensions 3 1.4 Technical data 5 2. FOR THE INSTALLER 2.1 Installation 5 2.2 Water connections 6 2.3 Commissioning 7 2.3.1 Filling the heater 7 2.3.2 Heater start-up 7 2.4 Shutting down 7 2.5 Maintenance 7 2.5.1 Anode 7 2.5.2 Descaling 7 2.6 Spare parts 8 3. FOR THE END - USER [...]

  • Page 3

    1. GENERAL 1.1 Description of the heater Construction of the heater is in accordance wi th the European standard f or water heaters or sanitary use. The heaters are suitable for use with a working pressure of up to 7 bar. The cylindrical tank is made from sheet steel . For protection agains t corrosion, the inside of the tank is glass-lined. The ta[...]

  • Page 4

    1.4 Technical specifications ST 1500/2000 ST 2500/3000 1 Storage capacity ltr 1500/2000 2500/3000 2 Tank heat loss kWh/24h 8.5 10.1 3 Maximum working pressure bar 7 7 4 Test pressure tank bar 12 12 5 Maximum allowed tank temperature °C 95 95 6 Weight empty kg 374/506 637/739 2. FOR THE INSTALLER 2.1 Installation A qualified, competent installer mu[...]

  • Page 5

    Back-up element 6 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 = wa rm wat er C = cold water E = boiler water hot F = boiler water return Optional backup elements are available for field installation up[...]

  • Page 6

    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. 4. Close all hot water taps 2.3.2 Start up Check if the heater is filled w[...]

  • Page 7

    2.5.2 Descaling Calcium precipitation depends on the water properties and the hot water demand. In addition, calcium precipitation in the tanks in creases at high water tem peratures. A clean out opening is located at the front for inspecting and des caling the tank. The clean out opening can be reached via the cover plate on the outer jacket of th[...]

  • Page 8

    4. WARRANTY 4.1 Warranty in general If within one year of the origin al installa tion date of the tank s upplied by A.O. Sm ith any part or component other than the tank sh all 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. Smith will exchange or rep air such pa[...]

  • Page 9

    4.4 Exclusions The warranty ensuing from sections 4.1 and 4.2 will be null and void: a. If the tank has been damaged by external causes. b. In case of misuse, neglect (including fros t damage), incorrect or improper use of the tank, or if attempts have been made to repair leaks; c. In the case of ingress of contamin ants or other particles into the[...]

  • Page 10

    ST 1500-3000 series Kit installation instructions 1 – Contents of flange kit Bag A Flange plate Designation Quantity Bolts 6 Gasket 1 Flange plate 1 Bag D 1 Bag D Flange collar and cover fixation screws and bracket s Designation Quantite Brackets 3 Parker screws 5 Flange collar and cover Installation manuals 10[...]

  • Page 11

    2 – Mounting instructions for flange cov ers, anodes, T&P and insulation package IMPORTANT: Start with mounting two plug anodes in the lo wer and center anode opening on the side of the tank. In the top anode opening you need to mount the o utlet anode with T-piece for T&P relieve valve (included) and ther mometer (not included). Make sur[...]

  • Page 12

    3 – Mounting instruction for rigid jacket Center each jacket segment on one of the feet .. Nota : top panels, once placed, fixate the jacket. 4 – Mounting of the flexible jacket Install the flexible jacket before mounting the cl ean out colla r and cover. The colla r serves as mould to cut the required opening in the jacket. In case the zipper [...]