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Installation

Instruction Manual BFC

8. Remove the burner as complete assembly.

9. Place and fit the burner with parts from the conversion kit.

Remark

The burner for LP gases can be recognised by the letter ‘P’ which is stamped
into the metal of the gas/air distribution plate

10. Select and fit the correct orifice from the conversion kit, based on

Table 3.6

The injector diameter is stamped into each injector

11. Check whether there is a burner pressure regulator

fitted to the gas

control, or simply a flat sealing plate

Legend

connector

gas coupling

air supply hose

pressure switch hose

distribution plate

orifice

Figure 3.12

Orifice assembly

Содержание 28 30 50 60

Страница 1: ...WATER PRODUCTS COMPANY A DIVISION OF A O SMITH CORPORATION XTRA HIGH EFFICIENCY XTRA HIGH EFFICIE N CY XTRA HIGH EFFICIE N CY Installation User and Service Manual 28 30 50 60 Release R 1 3 UK...

Страница 2: ...your installer www aosmithinternational com...

Страница 3: ...accordance with the General Conditions registered at the Eindhoven Chamber of Commerce Refer further to the General Conditions These are available on request and without charge Although considerable...

Страница 4: ...4 Instruction Manual BFC...

Страница 5: ...nvented installation 16 2 5 2 Vented installation 16 2 5 3 T P valve 16 3 Installation 17 3 1 Introduction 17 3 2 Packaging 17 3 3 Environmental conditions 17 3 3 1 Humidity and ambient temperature 18...

Страница 6: ...ions 41 5 The control panel 43 5 1 Introduction 43 5 2 Operating 43 5 3 Explanation of the icons 44 5 4 ON OFF switch of ThermoControl 44 5 5 Navigation buttons 44 5 6 PC connection 44 6 Status of the...

Страница 7: ...ting the pump on off 66 9 7 Setting the service interval 66 9 8 Setting the display contrast 67 9 9 Setting the backlight time 67 9 10 Setting the display scroll speed 67 10 Troubleshooting 69 10 1 In...

Страница 8: ...warranty 89 13 3 Installation and conditions of use 89 13 4 Exclusions 89 13 5 Scope of the warranty 90 13 6 Claims 90 13 7 Limitation of liability A O Smith 90 A Appendices 91 A 1 Introduction 91 A 2...

Страница 9: ...ons may lead to personal injury and damage to the appliance 1 2 What to do if you smell gas Warning Whenever there is a smell of gas No naked flames No smoking Avoid causing sparks Do not use any elec...

Страница 10: ...g other things on the water quality the average burning time per day and the set water temperature n Remark To determine the correct maintenance frequency it is recommended to arrange for the service...

Страница 11: ...his is the actual menu for the user however the installer and service and maintenance engineers will also need to use this menu 9 Service program is Describes the service menu It is mainly intended fo...

Страница 12: ...Introduction 12 Instruction Manual BFC 1 gis...

Страница 13: ...liance Legend a plastic top cover b hot water outlet c electrical connection block d ThermoControl e pressure switch f control panel g temperature sensor T1 h combustion chamber i anode j tank k heat...

Страница 14: ...increases the performance of the unit The water of condensation yielded by this process is discharged via the siphon w The PU insulation layer x prevents heat loss The inside of the tank is enamelled...

Страница 15: ...ressure switch The pressure switch ensures the discharge of flue gases and the supply of incoming air during the pre purge and normal running of the appliance The standard position of the pressure swi...

Страница 16: ...m The pressure reducing valve protects the installation against an excessively high water supply pressure 8 bar These components are fitted to the cold water pipe See paragraph 3 6 1 Cold water side 2...

Страница 17: ...Water connections Unvented Water connections Vented Gas connection Air supply and flue gas discharge Electrical connection Checking the supply pressure and burner pressure Conversion to a different ga...

Страница 18: ...ion cannot be guaranteed See also chapter 13 Warranty Certificate 3 3 4 Working clearances For access to the appliance it is recommended that the following clearances are observed see Figure 3 2 AA ar...

Страница 19: ...the tank and or connections can cause damage to the immediate environment or floors below the level of the boiler room If this is the case then the appliance should be installed above a wastewater dr...

Страница 20: ...3 4 Technical specifications The appliance is supplied without accessories Check the dimensions and other specifications for the accessories to be used based on Figure 3 2 and Table 3 6 Figure 3 2 Pl...

Страница 21: ...of air supply connection mm 1205 1730 1730 1730 1 Cold water supply connection R 1 external 2 Hot water outlet connection R 1 external 3 Gas control connection Rp internal 4 Drain valve connection ex...

Страница 22: ...ion 22 Instruction Manual BFC 3 is Electrical power consumption W 175 Supply voltage VAC 230 15 10 Mains frequency Hz 50 1 Hz Table 3 5 General and electrical data DESCRIPTION Unit BFC 28 BFC 30 BFC 5...

Страница 23: ...mbar 8 5 8 5 8 5 11 5 Gas consumption 1 m3 h 3 1 3 3 5 0 6 0 Data for LP gas 3 General Orifice diameter mm 2 50 2 60 3 40 3 80 Restrictor diameter mm n a n a n a n a G30 30 mbar butane Nominal load u...

Страница 24: ...temperature gauge optional k condensation drainage mandatory l hot water draw off points m pressure relief valve mandatory n water cistern o float valve p 3 way venting valve recommended q overflow pi...

Страница 25: ...rature gauge j to be able to check the temperature of the tap water 2 Fit the T P valve c 3 Fit a stop valve i in the hot water outlet pipe for use when servicing 3 6 3 Circulation pipe See c in Figur...

Страница 26: ...points a circulation pump can be installed This improves comfort and reduces water wastage 1 Fit a circulation pump f of the correct capacity for the length and resistance of the circulation system 2...

Страница 27: ...tact A O Smith cNote A O Smith prescribes the use of a roof or wall mounted terminal exclusively of a type approved for the appliance See paragraph 3 9 1 Concentric wall flue terminal and 3 9 2 Concen...

Страница 28: ...M2000 MDV SE 1 Pipe material flue gas discharge Thick walled aluminium with lip ring seal Pipe material air intake Thin walled galvanised sheet steel Pipe diameter Concentric BFC 28 80 125 mm BFC 30 5...

Страница 29: ...r Muelink Grol Model M2000 DDV SEC HR 1 1 The model M2000 DDV SEC HR is a special version of the Mugro 3000 series No other roof flue terminal may be used as the BFC appliance is approved exclusively...

Страница 30: ...ror signal Alarm OUT n Remark The optional components are not included in the rating for electrical power consumption see tables in paragraph 3 4 3 10 2 Preparation cNote The appliance is phase sensit...

Страница 31: ...tion of electrical components 3 10 3 Mains voltage The appliance is supplied without a power cord and main switch n Remark In order to receive electrical power the appliance has to be connected to the...

Страница 32: ...power is connected to the appliance 1 Connect phase L neutral N and earth A to terminals 7 8 and 9 as indicated in Table 3 10 2 Fit the cable in the pull relief 3 If you do not need to make any more c...

Страница 33: ...structions cNote Before starting up for the first time and following conversion you must always check the supply pressure and burner pressure If necessary adjust these to be certain of optimum perform...

Страница 34: ...ly pressure is not correct n Remark If the burner pressure is not correct and the appliance is fitted with a flat sealing plate you will not be able to adjust the pressure In this case consult your in...

Страница 35: ...rsion to a different gas category cNote The conversion may only by carried out by an authorised installer If the appliance must operate on a family of gas LP gas or natural gas other than the category...

Страница 36: ...e metal of the gas air distribution plate 5 10 Select and fit the correct orifice from the conversion kit based on Table 3 6 The injector diameter is stamped into each injector 6 11 Check whether ther...

Страница 37: ...t the flat sealing plate or burner pressure regulator supplied with the conversion kit Refit the connector to the gas control 13 Refit the connector 1 of the glow igniter and ionisation rod to the con...

Страница 38: ...Installation 38 Instruction Manual BFC 3 is...

Страница 39: ...e There should be no water coming out of the overflow valve m nor the T P valvec If this does happen the cause might be The water supply pressure is greater than the specified 8 bar Rectify this by fi...

Страница 40: ...y j temperature gauge optional k condensation drainage mandatory l hot water draw off points m pressure relief valve mandatory n water cistern o float valve p 3 way venting valve recommended q overflo...

Страница 41: ...e drain valve g 11 Bleed the appliance or installation so that it drains completely empty 4 3 2 Draining vented installations Some service activities require the appliance to be drained The procedure...

Страница 42: ...Filling and draining 42 Instruction Manual BFC 4 gis...

Страница 43: ...ow the display 6 graphical symbols above the display a connector for a service PC an ON OFF switch The push buttons are divided into three groups Navigation buttons Buttons UP H and DOWN L Enter E Res...

Страница 44: ...dicate that you can scroll up and or down Use buttons H and L to scroll The cursor points to the option to be activated In the display as shown in Figure 5 4 you can scroll through the main menu The m...

Страница 45: ...r depending on the heating cycle a text such as HEAT DEMAND See 7 4 The appliance s heating cycle EXTRA In this mode one extra period is programmed and activated In this mode the OFF or PROG position...

Страница 46: ...ppliance enters this condition the display will show the following information line one error code comprising a letter and two digits followed by the error description lines two through four alternate...

Страница 47: ...t case contact your service and maintenance engineer n Remark The message SERVICE REQUIRED is based on the number of burning hours and the preset service interval Should the service interval have been...

Страница 48: ...Status of the appliance 48 Instruction Manual BFC 6 gis...

Страница 49: ...Press once on the DOWN button L to position the cursor beside ON then press E The display shown in figure Figure 7 4 will appear Confirm with E the option START OPERATION The appliance will now enter...

Страница 50: ...orrect way The correct procedure is as follows 1 Activate the MENU with B 2 Use H and L to position the cursor beside OFF See Figure 7 6 3 Confirm OFF with E 4 Wait until the fan has stopped The S ico...

Страница 51: ...h 8 steps 1 The water temperature drops below the set temperature of for example 65 C The ThermoControl detects a heat demand and starts the heating cycle The W icon is activated The message HEAT DEMA...

Страница 52: ...The message RUNNING appears 7 Once the water is up to temperature the heat demand drops off and the post purge starts This lasts about 25 seconds The W G and V icons are dimmed The S icon is activate...

Страница 53: ...OFF ON WEEK PROGRAM EXTRA PERIOD SETTINGS Figure 8 1 Main menu OFF Select this option if you wish to shut the appliance down for a brief period but do not wish to drain it In this mode the frost prot...

Страница 54: ...the value Confirm with E After confirming the appliance enters ON mode n Remark If the temperature setting is higher than the current water temperature it is possible that the appliance does not imme...

Страница 55: ...andard week program 8 5 4 Adding times to a week program 8 5 5 Deleting times from a week program 8 5 2 Starting up and shutting down the week program The week program can be started up from any other...

Страница 56: ...ample this is 08 Confirm with E The cursor moves to the minute digits which will blink See Figure 8 10 n Remark Because the switch off time can never be earlier than the switch on time the switch off...

Страница 57: ...roll to another day and change more switch on and switch off times Simply repeat steps 3 through 10 12 After changing all desired switch on and switch off times you can start running the week program...

Страница 58: ...ew period added scroll down with L to START OPERATION and confirm with E 8 5 5 Deleting times from a week program All switch on off times are shown sequentially in the display Assume that the switch o...

Страница 59: ...to cancel deletion The switching period has been deleted You will return now to the week program menu The cursor is beside the first programmed period See Figure 8 27 7 Scroll with L to START OPERATIO...

Страница 60: ...will blink See Figure 8 30 3 Use H and L to set the switch on hour to the desired value In the example this is 08 Confirm with E The cursor moves to the minute digits which will blink See Figure 8 31...

Страница 61: ...ain settings and display certain appliance specifications See Table 8 1 8 7 2 Setting menu language Bring up the menu for selecting the language via 1 B SETTINGS Confirm with E The display shows the m...

Страница 62: ...ith H and L to the current hour for example 15 Confirm with E 5 The cursor moves to the minute digits which will blink Scroll with H and L to the next minute in time for example 45 Confirm the minute...

Страница 63: ...AL The relevant display specification appears see Figure 8 49 Table 8 2 Appliance specifications Appliance Ignition speed of fan Running speed of fan Regulation interval BFC 28 4500 rpm 4980 rpm 40 80...

Страница 64: ...Main menu 64 Instruction Manual BFC 8 gis...

Страница 65: ...pliance might not immediately start the heating cycle see chapter 7 4 The appliance s heating cycle To prevent excessively frequent switching on and off a there is a heating margin We refer to this ma...

Страница 66: ...S PUMP RELAY The standard setting for the pump relay is OFF Figure 9 7 shows the related display If the mode WEEK PROGRAM or EXTRA PERIOD is active then the setting for mode WEEK PROGRAM or EXTRA PER...

Страница 67: ...e is from 0 through 100 Figure 9 9 shows the related display 9 9 Setting the backlight time Adjust the backlight time the time that the display backlight stays lit after the last button is pressed via...

Страница 68: ...Service program 68 Instruction Manual BFC 9 is...

Страница 69: ...ng every 2 seconds See Figure 10 1 and Figure 10 2 The displayed errors are divided into two groups There are various types of errors LOCK OUT ERRORS When the cause is no longer present these errors r...

Страница 70: ...shooting table for general errors Table 10 1 General errors Sheet 1 of 3 Symptom Cause Solution Remark Gas smell Gas leak Warning Immediately close the main gas valve Warning Do not operate any switch...

Страница 71: ...t be 230 VAC 15 10 See appendix A 2 Electrical diagram BFC If the error cannot be rectified contact your installer Defective fuse s Replace fuse s To replace the fuses you must contact your installer...

Страница 72: ...lectric power present 1 Check whether the mains switch is ON 2 Check that there is power to the mains switch 3 Check whether the ON OFF switch of the ThermoControl is ON position I 4 Check whether the...

Страница 73: ...ng error Open circuit from sensor 2 of temperature sensor T 1 at the top of the tank 1 Sensor is not correctly connected Connect the sensor lead to JP5 See appendix A 2 Electrical diagram BFC Damaged...

Страница 74: ...perature sensor T 1 at the top of the tank Short circuit in the sensor circuit Replace sensor T 1 To replace the necessary parts you must contact your installer S14 blocking error Short circuit from d...

Страница 75: ...contact your installer Floating neutral Install an isolating transformer See 3 10 4 Isolating Transformer Contact your installer to have an isolating transformer installed F02 lock out error Fan fails...

Страница 76: ...supply hose between fan and burner are correctly fitted Refit these if necessary 3 Check the hoses on the pressure switch and the air supply hose between fan and burner for cracks If necessary replac...

Страница 77: ...k that the gas valve s open and shut correctly 3 If necessary replace the gas control Defect in the glow igniter circuit 1 Check that the glow igniter is correctly connected JP2 2 Check the wiring of...

Страница 78: ...rod is broken cracked 1 Check whether the ceramic part of the ionisation rod is still intact in the vicinity of the air distribution plate of the burner 2 If this is not the case the ionisation rod mu...

Страница 79: ...ing appliance specifications 2 Check that the hoses on the pressure switch and the air supply hose between fan and burner are correctly fitted Refit these if necessary 3 Check for cracks in the hoses...

Страница 80: ...ay only be performed by a qualified service and maintenance engineer F11 lock out error Flame detection with closed gas valve Defective gas valves See F07 Table 10 2 Displayed errors Sheet 8 of 10 Cod...

Страница 81: ...ller 3 If the frequency is correct but the error persists replace the ThermoControl To replace the necessary parts you must contact your installer Internal error message from the water heater controll...

Страница 82: ...he tank is 85 C None This is a temporary message that may appear from time to time but will disappear automatically E03 blocking error Error in temperature sensor T 1 at the top of the tank The temper...

Страница 83: ...00 or 1500 burning hours The standard setting is 500 burning hours Example In the first three months the appliance has burnt 300 hours During maintenance it is evident that one service per year will b...

Страница 84: ...Maintenance frequency 84 Instruction Manual BFC 11 gs...

Страница 85: ...y by ordering with this information can you be sure to receive the correct spare parts These details can be found on the rating plate 12 2 Preparation for maintenance To test whether all components ar...

Страница 86: ...and adjust these where necessary See paragraph 3 11 Checking the supply pressure and burner pressure 13 Check that all components of the flue gas system are properly attached 14 Check the pressure di...

Страница 87: ...of the appliance and also improves the heating process Take the rate of scale formation into account when deciding on maintenance frequency 1 Remove the cover plate 1 on the outer jacket See Figure 1...

Страница 88: ...lean the end of the heat exchanger using tap water 5 Fit the burner 6 Fit the flue gas discharge n Remark Check the pressure differential again after cleaning If the pressure differential is too low f...

Страница 89: ...nd conditions of use The warranty set out in article 1 and 2 will apply solely under the following conditions a the water heater is installed under strict adherence to the installation instructions of...

Страница 90: ...acement parts or components or water heater Shipping labour installation and any other costs associated with the replacement will not be accepted by A O Smith 13 6 Claims A claim on grounds of the spe...

Страница 91: ...Release R 1 3 UK 91 A Appendices A 1 Introduction This appendix contains The Electrical diagram BFC A Week program card is...

Страница 92: ...OFF switch control N Display Flat cable O Fan P Temperature sensor T2 bottom of tank Q Dummy R Temperature sensor T1 top of tank S Selection resistor T Pressure switch CONTROLLER CONNECTIONS J1 Conne...

Страница 93: ...FF 13 ON C ON OFF OFF OFF 3 ON C ON OFF 14 ON C ON OFF OFF OFF 4 ON C ON OFF 15 ON C ON OFF OFF OFF 5 ON C ON OFF 16 ON C ON OFF OFF OFF 6 ON C ON OFF 17 ON C ON OFF OFF OFF 7 ON C ON OFF 18 ON C ON O...

Страница 94: ...Release R 1 3 UK 94...

Страница 95: ...ide 25 continuous pump connection 32 conversion to different gas 35 D data general 21 descaling 87 dimensions 21 display 43 displaying error history 65 document contents 11 draining 41 E electrical co...

Страница 96: ...scale 87 scrolling 44 service check 10 83 service engineer 10 service required 47 setting backlight time 67 setting display contrast 67 setting display scroll speed 67 setting service interval 66 sett...

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