- DL manuals
- A.O. Smith
- Water Heater
- BFM - 100
- Installation & Service Manual
A.O. Smith BFM - 100 Installation & Service Manual
Summary of BFM - 100
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Instruction manual bfm 3 gis read this manual carefully warning read this manual carefully before starting up the water heater. Failure to read this manual and to follow the instructions in this manual may lead to accidents, personal injury, and damage to the appliance. Copyright © 2007 a.O. Smith w...
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4 instruction manual bfm gis.
Page 5: Table of Contents
Instruction manual bfm 5 table of contents 1 introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - 7 1.1 about the appliance - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7 1.2 what to do if you smell gas- - - - - - - - - - - - - - - - - - - - - - - - - 7 1.3 regulations - - -...
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Table of contents 6 instruction manual bfm 8 status of the appliance - - - - - - - - - - - - - - - - - - - - - 51 8.1 introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 51 8.2 operating modes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 51 8.3 error conditions ...
Page 7: Introduction
Instruction manual bfm 7 gis 1 introduction 1.1 about the appliance this manual describes how to install, service and use the bfm appliance. The bfm appliance is a gas-fired sealed boiler with a fan in the air supply. The parallel or concentric chimney connections are appliance-dependent. Possible i...
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Introduction 8 instruction manual bfm 1 gis furthermore, the installation must comply with the manufacturer's instructions. Note later amendments and/or additions to all regulations, requirements and guidelines published on or prior to the moment of installing, will apply to the installation. 1.4 ma...
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Instruction manual bfm 9 gis 1.7 overview of this document the table provides an overview of the contents of this document. Contents of this document chapter target groups description working principle of the appliance this chapter describes how the appliance functions. Installation this chapter des...
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Introduction 10 instruction manual bfm 1 gis.
Page 11: Working Principle of
Instruction manual bfm 11 gis 2 working principle of the appliance 2.1 introduction topics covered in this chapter: • general working principle of the appliance ; • the appliance's heating cycle ; • protection for the appliance ; • safety of the installation . 2.2 general working principle of the ap...
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Working principle of the appliance 12 instruction manual bfm 2 gis cut-away view of the appliance legend only applicable numbers are mentioned. 2. Hot water outlet 5. Pressure switch 8. Combustion chamber 9. Anode 10. Tank 11. Heat exchanger 12. Inspection and cleaning opening 14. Cold water inlet 1...
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Instruction manual bfm 13 gis 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 (50) and heat exchanger (11). The heated tap water leaves the tank through the hot water outlet ...
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Working principle of the appliance 14 instruction manual bfm 2 gis • the water temperature protection ; • the flame probe ; • the pressure switch . 2.4.2 water temperature protection by means of the frost, high-limit and safety thermostats, the burner control monitors three temperatures that are imp...
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Instruction manual bfm 15 gis 2.5 safety of the instal- lation in addition to the appliance's standard built-in safety monitoring, the appliance must also be protected by an expansion vessel, expansion valve, pressure reducing valve, non-return valve and a t&p valve. The use of an expansion vessel, ...
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Working principle of the appliance 16 instruction manual bfm 2 gis.
Page 17: Installation
Instruction manual bfm 17 is 3 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 ro...
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Installation 18 instruction manual bfm 3 is 3.3.2 maximum floor load allow for the appliance's weight with respect to the maximum floor load; refer to the table. 3.3.3 water composition the appliance is intended for heating drinking water. The drinking water must comply with the regulations governin...
Page 19
Instruction manual bfm 19 is working clearances 3.4 technical specifica- tions the appliance is supplied without accessories. Check the dimensions (3.4.1 "dimensions of the appliance") , gas data (3.4.3 "gas data") and other specifications (3.4.2 "general and electrical specifications") of any acces...
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Installation 20 instruction manual bfm 3 is 3.4.1 dimensions of the appliance plan and elevation of the appliance replacement of burner pressure regulator or blank plate bfm30-50-80-100 (2) = bfm 100, 120 imd-0057 r5 37º 10º 45º 37º 10º 45º a b n s 1 6 6 2 5 3 4 d k r m p p 6 4/6 f e g/l 6 4/6 f e g...
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Instruction manual bfm 21 is dimensions (all measurements in mm unless otherwise indicated) 3.4.2 general and electrical specifications general and electrical specifications dimens ion description bfm30 bfm50 bfm80 bfm100 bfm120 a total height 2000 2000 2020 2020 2020 b height of top of appliance 18...
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Installation 22 instruction manual bfm 3 is 3.4.3 gas data gas data description unit bfm 30 bfm 50 bfm 80 bfm 100 bfm 120 gas category: 30 through 100 ii 2h3+ , 120: ii 2h3p natural gas g20 - 20 mbar orifice diameter mm 2.60 2.50 2.70 3.20 3.30 diameter of pilot flame orifice mm 0.56/0.41 0.56/0.41 ...
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Instruction manual bfm 23 is 3.5 installation diagram 3.5.1 installation this figure shows the installation diagram. This diagram is used in the sections in which the actual connection process is described. Installation diagram legend only applicable numbers are mentioned. 1. Pressure reducing valve...
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Installation 24 instruction manual bfm 3 is 3.6 water connections, vented warning the installation should be carried out by an authorised installation engineer, in compliance with general and local regulations (1.3 "regulations") . 3.6.1 cold water side see (a) in the installation diagram (3.5 "inst...
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Instruction manual bfm 25 is 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)...
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Installation 26 instruction manual bfm 3 is 3.7.5 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 circu...
Page 27
Instruction manual bfm 27 is 3.9 air supply and flue 3.9.1 introduction warning the installation should be carried out by an authorised installation engineer, in compliance with general and local regulations (1.3 "regulations") . The bfm 30, 50 and 80 differ from the bfm 100 and 120 in how the air s...
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Installation 28 instruction manual bfm 3 is 3.9.3 concentric wall flue terminal bfm 30-50-80 wall flue terminal 3.9.4 c13 concentric wall flue terminal specifications (bfm 30, 50, 80) c13 concentric wall flue terminal specifications . A b imd 0060 r2 subject description wall flue terminal set: • 1x ...
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Instruction manual bfm 29 is 3.9.5 concentric roof flue terminal bfm 30, 50, 80 roof flue terminal . A b c imd-0061 r2.
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Installation 30 instruction manual bfm 3 is 3.9.6 c33 concentric roof flue terminal specifications (bfm 30, 50, 80) c33 concentric roof flue terminal specifications 3.9.7 installing chimney flue components for bfm 100, 120 the air supply duct (1) and chimney flue (2) for the bfm 100 and 120 emerge s...
Page 31
Instruction manual bfm 31 is a.O. Smith prescribes the use of a concentric roof or wall flue terminal, exclusively of a type approved for the appliance. Use of an incorrect roof or wall flue terminal can cause the installation to malfunction. You must also fulfil the following requirements: • the ma...
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Installation 32 instruction manual bfm 3 is 3.9.9 c13 concentric wall flue terminal specifications (bfm 100, 120) c13 concentric wall flue terminal specifications subject description wall flue terminal set: • 1x wall flue terminal (incl. Wall flange & clamping ring) • 1x clamping ring • 1x transitio...
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Instruction manual bfm 33 is 3.9.10 concentric roof flue terminal bfm 100, 120 roof flue terminal . Imd-0239 r1 a c b.
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Installation 34 instruction manual bfm 3 is 3.9.11 c33 concentric roof flue terminal specifications (bfm 100, 120) c33 concentric roof flue terminal specifications 3.10 electrical connection warning the installation should be carried out by an authorised installation engineer, in compliance with gen...
Page 35
Instruction manual bfm 35 is in preparation you should first remove the two plastic covers and the protective cap of the electrical section. 1. Undo the screws of the plastic covers. 2. Carefully remove the covers from the appliance. The electrical section is now visible. 3. Loosen the 2 screws (a) ...
Page 36
Installation 36 instruction manual bfm 3 is 3.11 checking the supply pressure and burner pressure note before starting the appliance and/or checking the supply pressure and burner pressure, you must fill (5 "filling") the appliance. Caution before starting up for the first time or after conversion, ...
Page 37
Instruction manual bfm 37 is gas control for bfm 120 1. Isolate the appliance from the power supply (10.3 "isolating the appliance from the mains") . 2. There are two test nipples on the gas control. Test nipple (6) is used to check the supply pressure. The other test nipple on the gas control is no...
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Installation 38 instruction manual bfm 3 is 11. Use the pressure gauge to read the burner pressure at nipple (8). Refer to the gas data table (3.4.3 "gas data") . Note if the burner pressure is incorrect and the appliance is fitted with a blank plate or high-low control, then you cannot adjust the p...
Page 39: Conversion to A
Instruction manual bfm 39 is 4 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...
Page 40
Conversion to a different gas category 40 instruction manual bfm 4 is 4.2 orifice replacement gas control assembly removed 1. Remove the protective cover from the control column: undo the 4 screws and remove the protective cover by lifting it. The electrical section will now be exposed. 2. Remove th...
Page 41
Instruction manual bfm 41 is 8. If the gas table (3.4.3 "gas data") indicates that the main burner orifices need to be replaced: a. Remove the main orifices (5). B. Fit the main orifices from the conversion set. Check the required orifice diameter against the value given in the gas table (3.4.3 "gas...
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Conversion to a different gas category 42 instruction manual bfm 4 is.
Page 43: Filling
Instruction manual bfm 43 gis 5 filling installation diagram legend only applicable numbers are mentioned. 1. Pressure reducing valve (mandatory) 3. T&p valve (mandatory) 4. Stop valve (recommended) 5. Non-return valve (mandatory) 6. Circulation pump (optional) 7. Top to bottom circulation pump (opt...
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Filling 44 instruction manual bfm 5 gis 5.1 filling unvented installations to fill the appliance, proceed as follows: 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. Open the nearest hot water draw-...
Page 45: Draining
Instruction manual bfm 45 gis 6 draining installation diagram legend only applicable numbers are mentioned. 1. Pressure reducing valve (mandatory) 3. T&p valve (mandatory) 4. Stop valve (recommended) 5. Non-return valve (mandatory) 6. Circulation pump (optional) 7. Top to bottom circulation pump (op...
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Draining 46 instruction manual bfm 6 gis 6.1 draining unvented installations some service activities require the appliance to be drained. The procedure is as follows: 1. Shut down the appliance by setting the on/off switch on the control panel to position 0. 2. Isolate the water heater from the powe...
Page 47
Instruction manual bfm 47 gis 6.2 draining vented installations some service activities require the appliance to be drained. The procedure is as follows: 1. Shut down the appliance by setting the on/off switch on the control panel to position 0. 2. Isolate the water heater from the power supply by p...
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Draining 48 instruction manual bfm 6 gis.
Page 49: The Control Panel
Instruction manual bfm 49 gis 7 the control panel 7.1 introduction topics covered in this chapter: • control panel ; • explanation of icons ; • on/off switch ; • control thermostat ; • burner control reset button . 7.2 control panel the figure shows the control panel. The control panel the control p...
Page 50
The control panel 50 instruction manual bfm 7 gis 7.6 burner control reset button an error in the appliance can cause a lockout of the burner control. When this happens, the reset button lamp will be lit. Once the cause of the error has been rectified, you can reset the appliance using the reset but...
Page 51: Status of The
Instruction manual bfm 51 gis 8 status of the appliance 8.1 introduction topics covered in this chapter: • operating modes ; • error conditions ; 8.2 operating modes when running, the appliance has three basic operating modes, namely: • electrically isolated in this mode, the appliance is off and no...
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Status of the appliance 52 instruction manual bfm 8 gis.
Page 53: Starting and Running
Instruction manual bfm 53 gis 9 starting and running 9.1 introduction topics covered in this chapter: • starting the appliance ; • the appliance's heating cycle . 9.2 starting the appliance start the appliance as follows: 1. Fill the appliance (5 "filling") . 2. Open (3.5 "installation diagram") the...
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Starting and running 54 instruction manual bfm 9 gis.
Page 55: Shutting Down
Instruction manual bfm 55 gis 10 shutting down 10.1 introduction topics covered in this chapter: • shutting down the appliance for a brief period (off mode) ; • isolating the appliance from the mains ; • shutting the appliance down for a long period . 10.2 shutting down the appliance for a brief per...
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Shutting down 56 instruction manual bfm 10 gis.
Page 57: Troubleshooting
Instruction manual bfm 57 gis 11 troubleshooting 11.1 introduction this chapter deals with the following problems with the appliance: • gas smell. • water leakage. • explosive ignition. • poor flame profile. • no hot water. • insufficient hot water. When the appliance is in an error condition, the h...
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Is instruction manual bfm 58 11.2 troubleshooting: general errors warning maintenance may only be performed by a qualified service and maintenance engineer. General errors symptom cause solution remark gas smell gas leak warning close the main gas valve immediately. Warning do not operate any switch...
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Is instruction manual bfm 59 11.3 troubleshooting: insufficient hot water warning maintenance may only be performed by a qualified service and maintenance engineer. Insufficient hot water symptom cause solution remark insufficient hot water water temperature setting (t set ) is too low set the contr...
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Is instruction manual bfm 60 11.4 troubleshooting: no hot water no hot water symptom cause solution remark no attempt to start heating cycle no supply voltage present 1. Check if the isolator is on. 2. Check whether there is power to the isolator 3. Check whether there is power to the electrical con...
Page 61
Is instruction manual bfm 61 burner control reset button (burner control lock out error) there are three possible causes for this error. In order to determine the cause, you must cause the error to appear again: 1. Reset the appliance by pressing the reset button 1x 2. Cause (a) occurs between step ...
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Is instruction manual bfm 62.
Page 63: Performing
Instruction manual bfm 63 s 12 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 th...
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Performing maintenance 64 instruction manual bfm 12 s 12.3 water-side mainte- nance 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 ser...
Page 65
Instruction manual bfm 65 s 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. 3. Undo the bolts. 4. Remove the lid, the gasket and the o-ring. 5. Inspect the tank and remove the lo...
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Performing maintenance 66 instruction manual bfm 12 s 12.4 gas-side mainte- nance 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. Remov...
Page 67: Warranty (Certificate)
Instruction manual bfm 67 gis 13 warranty (certificate) to register your warranty, you should complete and return the enclosed warranty card after which a warranty certificate will be sent to you. This certificate gives the owner of a appliance supplied by a.O. Smith water products company b.V. Of v...
Page 68
Warranty (certificate) 68 instruction manual bfm 13 gis i. The appliance is at all times fitted with cathodic protection. If sacrificial anodes are used for this, these must be replaced and renewed when, and as soon as, they are 60% or more consumed. When electric anodes are used, it is important to...
Page 69: Electrical Diagram
Instruction manual bfm 69 is 14 electrical diagram 14.1 introduction this chapter shows the electrical diagram(s) and accompanying legend..
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Electrical diagram 70 instruction manual bfm 14 is 14.2 bfm electrical diagram. 1 = brown, 2 = blue, 3 = yellow/green, 4 = black, 5 = white, 6 = red, 7 = white/orange, 8 = white/purple, 9 = black/green, 10 = black/red, 11 = black/white 230vac l n fan pvc no 50 hz n l s s s s 1 2 3 4 nc pvc 11 10 9 8...
Page 71
Instruction manual bfm 71 is components: a mantle b isolating transformer c dps (differential air pressure switch) d filter e reset button f frost thermostat g control thermostat h on/off switch k safety thermostat l high-limit thermostat m burner control n terminal block p earth strip r relay optio...
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Electrical diagram 72 instruction manual bfm 14 is.
Page 73: Index
Instruction manual bfm 73 index a ambient temperature 17 b burner pressure 36 c claims 68 connect air supply 27 circulation piping 25, 26 cold water side 24, 25 electrical 34, 35 gas 26 hot water side 25 shut pipe 24, 25 connecting air supply 27 connecting circulation pipe 25, 26 connecting cold wat...
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0306 723 4.0 uk index instruction manual bfm.