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A.O. Smith ADM-40 Installation, User And Service Manual

Commercial atmospheric water heater
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See also: Installation and Servicing Manual , Installation, User and Service Manual
ADMP
Commercial Atmospheric
Water Heater
ADM - 40/50/60/80/90/115
Installation, User and Service
Manual
Innovation has a name.

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Summary of Contents for A.O. Smith ADM-40

  • Page 1 ADMP Commercial Atmospheric Water Heater ADM - 40/50/60/80/90/115 Installation, User and Service Manual Innovation has a name.
  • Page 2 A.O. Smith UK, Unit B8 Amstrong Mall, Southwood Business Park, Farnborough, Hampshire GU14 0NR www.aosmith.co.uk “A.O. Smith Water Heaters” is a trading name of Advance Services (Sales) Ltd. Reg.
  • Page 3 Any brand names mentioned in this manual are registered trademarks of their respective owners. Liability A.O. Smith Water Products Company accepts no liability for claims from third parties arising from improper use other than that stated in this manual and in accordance with the General Conditions registered at the Eindhoven Chamber of Commerce.
  • Page 4 Instruction manual ADMP...

  • Page 5: Table Of Contents

    Table of contents Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - 7 About the appliance - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7 What to do if you smell gas- - - - - - - - - - - - - - - - - - - - - - - - - 7 Regulations - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7 Target groups - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8...
  • Page 6 13.7 Obligations of A.O. Smith - - - - - - - - - - - - - - - - - - - - - - - - - 58 Appendices - - - - - - - - - - - - - - - - - - - - - - - - - - - 59 14.1...

  • Page 7: Introduction

    Introduction About the appliance This manual describes how to install, service and use the ADMP appliance. The ADMP appliance is a gas-fired open boiler without fan. ADMP appliances are equipped with a flue gas backflow safeguard. The ADMP is an appliance of type B 11BS The information in this manual applies to types: ADMP 40, ADMP 50, ADMP 60, ADMP 80, ADMP 90 and ADMP 115.

  • Page 8: Target Groups

    Introduction The installation should also be in accordance with any relevant requirements of the HSE, local gas region and local authority and the relevant recommendations of the following documents: British Standards • BS 6891: Specification for installation of low-pressure gas pipework of up to 28 mm (R1) in domestic premises (2nd family gas).

  • Page 9: Maintenance

    Maintenance A service should be carried out at least once a year, both on the water side and on the gas side. Maintenance frequency depends, among other things, on the water quality, the average burning time per day and the set water temperature. Note To determine the correct maintenance frequency, it is recommended to arrange for the service and maintenance engineer to check the appliance on...

  • Page 10: Overview Of This Document

    Introduction Overview of this The table provides an overview of the contents of this document. document Contents of this document Chapter Target groups Description Working principle of the This chapter describes how the appliance functions. appliance Installation This chapter describes the installation activity to be completed before you actually start up the appliance.

  • Page 11: Working Principle Of The Appliance

    Working principle of the appliance Introduction Topics covered in this chapter, in sequence: • General working principle of the appliance; • The appliance's heating cycle; • Protection for the appliance; • Safety of the installation. General working The figure shows a cut-away view of the appliance. principle of the Cut-away view of the appliance appliance...

  • Page 12: The Appliance's Heating Cycle

    Working principle of the appliance In this appliance, the cold water enters the bottom of the tank through the cold water inlet (14). The heat of combustion is conducted to the water by the combustion chamber (8) and heat exchanger (11). The heated tap water leaves the tank through the hot water outlet (2).

  • Page 13: Protection For The Appliance

    Protection for the The burner control monitors the water temperature by means of thermostats and ensures safe combustion. This takes place using: appliance • the Gas control; • the Thermocouple; • the Water temperature protection; • the Flue gas backflow safeguard. 2.4.1 Gas control The gas control has 2 valves for safety purposes:...

  • Page 14: Safety Of The Installation

    Working principle of the appliance Safety of the In addition to the standard safety monitoring of the appliance, the appliance must also be protected by an expansion vessel, expansion valve, non-return installation valve and a T&P valve. Use of an expansion vessel and expansion valve depends on the type of installation: unvented or vented.

  • Page 15: Installation

    Installation Warning Installation work should be carried out by an approved installation engineer in compliance with the general and local regulations imposed by the gas, water and power supply companies and the fire service. The appliance may only be installed in a room that complies with the requirements stated in national and local ventilation regulations (1.3 "Regulations").
  • Page 16 Installation 3.3.1 Air humidity and ambient temperature The boiler room must be frost-free, or be protected against frost. The table shows the environmental conditions that must be adhered to for correct functioning of the electronics present in the appliance to be guaranteed. Air humidity and ambient temperature specifications Air humidity and ambient temperature Air humidity...
  • Page 17 3.3.4 Working clearances For access to the appliance, it is recommended that the following clearances are observed (see figure): • AA: around the appliance's control column and cleaning openings: 100 cm. • BB: all sides of the appliance: 50 cm. •...

  • Page 18: Technical Specifications

    Installation Technical The appliance is supplied without accessories. Check the dimensions (3.4.1 "Dimensions of the appliance"), gas data (3.4.3 "Gas data") specifications and other specifications (3.4.2 "General and electrical specifications") of any accessories you plan to use. 3.4.1 Dimensions of the appliance Plan and elevation of the appliance Legend See the table.
  • Page 19 Dimensions Size Description Unit ADMP 40 ADMP 50 ADMP 60 ADMP 80 ADMP 90 ADMP 115 Overall height 1900 2100 1900 2100 2000 2085 Height of top of appliance 1760 1960 1760 1960 1795 1870 Appliance diameter Depth Width 1100 1100 1100 1100...
  • Page 20 3.4.2 General and electrical specifications Description Unit ADMP 40 ADMP 50 ADMP 60 ADMP 80 ADMP 90 ADMP 115 Volume litres Maximum operating pressure Maximum operating pressure, unvented Minimum operating pressure, unvented Empty weight Heating-up time ΔT = 45 °C minutes Number of anodes Number of bar burners/orifices...
  • Page 21 3.4.3 Gas data Description II Unit ADMP 40 ADMP 50 ADMP 60 ADMP 80 ADMP 90 ADMP 115 2H3+ Gas category 2H: General Orifice diameter 3.20 3.20 3.10 2.95 3.20 3.20 (1) = Blank plate 1, 2 or 3 (2) = Burner pressure regulator (3) = High-low control G20 - 20 mbar Nominal load (G.C.V.)

  • Page 22: Installation Diagram

    Installation Installation diagram This figure shows the installation diagram. This diagram is used in the sections in which the actual connection process is described. Installation diagram Legend UNVENTED Only applicable numbers are mentioned. 1. pressure reducing valve (mandatory) 3. T&P valve 4.

  • Page 23: Water Connections, Unvented

    Water connections, Warning The installation should be carried out by an authorised installation engineer, Unvented in compliance with general and local regulations (1.3 "Regulations"). 3.6.1 Cold water side See (A) in the installation diagram (3.5 "Installation diagram"). 1. Fit an approved stop valve (4) on the cold water side as required by applicable regulations (1.3 "Regulations").
  • Page 24 Installation 3.6.5 Circulation pipe See (C) in the installation diagram (3.5 "Installation diagram"). If an immediate flow of hot water is required at draw-off points, a circulation pump can be installed. This improves comfort and reduces water wastage. 1. Fit a circulation pump (6) of the correct capacity for the length and resistance of the circulation system.

  • Page 25: Gas Connection

    Drain valve 1. Fit a drain valve (9). (Remark: The drain valve, as shown in the figure, can be ordered at your supplier). 2. If applicable, fit a circulation pipe (3.6.5 "Circulation pipe"). If not, fit the blind threaded plug and gasket (C) supplied with the drain valve, as shown in the figure.

  • Page 26: Electrical Connection

    Installation Electrical Warning The installation should be carried out by an authorised installation engineer, connection in compliance with general and local regulations (1.3 "Regulations"). 3.8.1 Preparations Caution The appliance is phase-sensitive. It is absolutely essential to connect the mains live (L) to the live of the appliance, and the mains neutral (N) to the neutral of the appliance.

  • Page 27: Chimney Flue

    3.8.2 Connecting the mains power The appliance is supplied without a power cable and isolator. Note In order to receive electrical power, the appliance has to be connected to the mains power by means of a permanent electrical connection. A double-pole isolator with a contact gap of at least 3 mm must be fitted between this permanent connection and the appliance.
  • Page 28 Installation Installing the draught diverter Legend 1 support bracket 2 holes to attach support bracket >0,5 m 3 screws for support bracket 4 holes to attach draught diverter 5 sealing ring 6 screws for draught diverter 7 45° bend 8 chimney pipe IMD-0123 R1 1.
  • Page 29 3.9.3 Flue gas thermostat assembly At the top of the control column there is a plastic bag containing the flue gas sensor plus the associated fastenings. The cable from the sensor has already been connected to the control column. The sensor must be fitted in the cut-away of the draught diverter.

  • Page 30: Checking The Supply Pressure And Burner Pressure

    Installation 3.10 Checking the supply Note Before starting the appliance and/or checking the supply pressure and pressure and burner burner pressure, you must fill (5 "Filling") the appliance. pressure Caution Before starting up for the first time or after conversion, you must always check the supply pressure and burner pressure.
  • Page 31 3.10.1 Reading off and adjusting 1. Isolate the appliance from the mains power (10.3 "Isolating the appliance from the mains"). 2. To check the supply pressure, test nipple (6) is used. The manifold test nipple (8) is used for measuring the burner pressure. Sealing screws are located inside the test nipples.
  • Page 32 Installation Instruction manual ADM...

  • Page 33: Conversion To A Different Gas Category

    Conversion to a different gas category Caution The conversion may only by carried out by an authorised installation engineer. If the appliance must operate on a family of gases (LP gas or natural gas) or other gas category than that for which the appliance has been set at the factory, the appliance will have be adapted using a special conversion kit.

  • Page 34: Conversion To A Different Gas Category

    Conversion to a different gas category Conversion to a 1. Isolate the appliance from the power supply (10.3 "Isolating the appliance from the mains"). different gas category 2. Shut off the gas supply. Caution The burner may be hot. 3. Unscrew the cover plate (1) from the burner support. 4.
  • Page 35 Legend Gas control for ADMP Only applicable numbers are mentioned. 4. burner pressure controller 5. blank plate 6. supply pressure nipple 7. gas control 8. manifold test nipple 9. sealing screw 10. burner pressure adjustment screw Instruction manual ADM...
  • Page 36 Conversion to a different gas category Instruction manual ADM...

  • Page 37: Filling

    Filling Installation diagram Legend UNVENTED Only applicable numbers are mentioned. 1. pressure reducing valve (mandatory) 3. T&P valve 4. stop valve (recommended) 5. non-return valve (mandatory) 6. circulation pump (optional) 7. top to bottom circulation pump (optional) 9. drain valve 10.

  • Page 38: Filling Unvented Installations

    Filling Filling unvented To fill the appliance, proceed as follows: installations 1. Open the stop valve (11) in the hot water pipe and, if present, the stop valves (4) for the circulation pump (6). 2. Close the drain valve (9). 3.

  • Page 39: Draining

    Draining Installation diagram Legend UNVENTED Only applicable numbers are mentioned. 1. pressure reducing valve (mandatory) 3. T&P valve 4. stop valve (recommended) 5. non-return valve (mandatory) 6. circulation pump (optional) 7. top to bottom circulation pump (optional) 9. drain valve 10.

  • Page 40: Draining Unvented Installations

    Draining Draining unvented Some service activities require the appliance to be drained. The procedure is as follows: installations 1. Shut down the appliance by setting the ON/OFF switch on the control panel to position 0. IMD-0507 R0 2. Isolate the water heater from the power supply by putting the isolator between the appliance and the mains power supply to position 0.

  • Page 41: The Control Panel

    The control panel Introduction On/off switch Topics covered in this chapter, in sequence: You use the on/off switch to set the appliance in: • Control panel; • ON mode (position I); • On/off switch; • OFF mode (position 0). • Control thermostat;...
  • Page 42 The control panel Instruction manual ADM...

  • Page 43: Status Of The Appliance

    Status of the appliance Introduction • Blocking errors In this case the gas control's main valve is closed. Topics covered in this chapter, in sequence: Despite a possible demand, combustion is • Operating modes; stopped although the pilot flame remains ignited. •...
  • Page 44 Status of the appliance Instruction manual ADM...

  • Page 45: Starting And Running

    Starting and running Introduction If there is a heat demand, the appliance will run through the heating cycle (9.3 "The appliance's Topics covered in this chapter, in sequence: heating cycle"). • Starting the appliance; • The appliance's heating cycle. Warning If the pilot flame goes out during the heating cycle Starting the appliance or ignition procedure, you must wait 5 minutes before...
  • Page 46 Starting and running Instruction manual ADM...

  • Page 47: Shutting Down

    Shutting down 10.1 Introduction 10.4 Shutting the appliance down for a long period You can: To shut the appliance down for a longer period, you • Shutting the appliance down for a brief period must drain the appliance (6 "Draining"). ("OFF"...
  • Page 48 Shutting down Instruction manual ADM...

  • Page 49: Troubleshooting

    Troubleshooting 11.1 Introduction This chapter covers the following errors: • Gas smell; • Water leakage; • Explosive ignition; • Poor flame profile; • Power anode (optional); • No hot water; • Insufficient hot water. 11.2 Error conditions If the water heater goes into an "error" condition, you will be unable to draw hot water.

  • Page 50: Admp Troubleshooting Table For General Errors

    11.3 ADMP Troubleshooting table for general errors Warning Maintenance may only be performed by a qualified service and maintenance engineer. General faults and failures Symptom Cause Precautions Comment Gas smell Gas leak Warning Note Close the main gas valve immediately. Contact your installation engineer or local gas company immediately.

  • Page 51: Admp Troubleshooting Table - No Hot Water

    11.4 ADMP Troubleshooting table - no hot water Warning Maintenance may only be performed by a qualified service and maintenance engineer. No hot water Symptom Cause Precautions Comment Red LED in the on/off No supply voltage 1. Check if the isolator is ON. switch is off present 2.

  • Page 52: Admp Troubleshooting Table - Insufficient Hot Water

    11.5 ADMP Troubleshooting table - insufficient hot water Warning Maintenance may only be performed by a qualified service and maintenance engineer. Insufficient hot water Symptom Cause Precautions Comment Insufficient hot water Water temperature Set the control thermostat (7.3 "Control thermostat") to a higher setting (T ) is too low value...

  • Page 53: Performing Maintenance

    Performing maintenance 12.1 Introduction Caution Maintenance may only by carried out by an approved service and maintenance engineer. At each service, the appliance undergoes maintenance on both the water side and the gas side. The maintenance must be carried out in the following order. 1.

  • Page 54: Water-Side Maintenance

    Performing maintenance 12.3 Water-side maintenance 12.3.1 Introduction The following steps must be carried out on the water side: 1. Checking the anodes. 2. Descaling and cleaning the tank. 12.3.2 Checking the anodes Timely replacement of the anodes extends the service life of the appliance. The appliance's anodes must be replaced as soon as they are 60% or more consumed (take this into consideration when determining the maintenance frequency).
  • Page 55 To simplify the task of descaling and cleaning the tank, the appliance is equipped with two cleaning openings. IMD-0235 R2 1. Remove the cover plate (1) on the outer jacket (see the figure). 2. Carefully remove the insulation layer (2) and set it to one side. This will be needed again later.

  • Page 56: Gas-Side Maintenance

    Performing maintenance 12.4 Gas-side maintenance 12.4.1 Introduction The following steps must be carried out on the gas side: 1. Clean the burner(s). 2. Clean the orifice(s). 3. Checking the flue baffles. 12.4.2 Clean the burner(s) 1. Detach the burner(s) 2. Remove all contamination present on the burner(s). 3.

  • Page 57: Warranty (Certificate)

    A.O. Smith shall offer to replace the defective water heater with an entirely new water heater of equivalent size and quality. The warranty period given on the replacement water heater shall be equal to the remaining warranty period of the original water heater that was supplied.

  • Page 58: Exclusions

    Smith warranty expressly set out in this Certificate. Under the terms of the supplied warranty, A.O. Smith is not liable for damage to persons or property caused by (sections or parts, or the glass-lined steel tank of) a (replacement) water heater that it has supplied.

  • Page 59: Appendices

    Appendices 14.1 Introduction This section gives the electrical diagram. Instruction manual ADM...

  • Page 60: Electrical Diagram

    Appendices 14.2 Electrical diagram 230V AC 50Hz 0304401 R1 1 = brown, 2 = blue, 3 = yellow/green, 4 = black, 5 = white (flat cable) Instruction manual ADM...
  • Page 61 TERMINAL STRIP CONNECTIONS: COMPONENTS: Earth ON/OFF switch Neutral Control thermostat Phase input to control isolator High-limit thermostat Safety thermostat Phase input of thermal reflux safeguard Phase input of main gas valve Thermal reflux safeguard Gas control Eye terminal for earthing to the jacket OPTIONAL COMPONENTS: Control isolator Instruction manual ADM...
  • Page 62 Appendices Instruction manual ADM...
  • Page 63 Index ambient temperature 16 mains power 27 maintenance burner 56 finalising 56 burner pressure 30 gas-side 56 orifice 56 perform 53 claims 58 preparation 53 connect water-side 54 circulation piping 24, 25 cold water side 23, 24 electrical 26, 27 on/off switch 41 gas 25 hot water side 23...
  • Page 64 Index Instruction manual ADMP 0311 812 1.1 UK...

This manual is also suitable for:

Adm-50Adm - 80Adm - 90Adm - 60Adm - 115

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