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- A.O. Smith
- Water Heater
- BFM 30
- Installation Instructions Manual
A.O. Smith BFM 30 Installation Instructions Manual
Summary of BFM 30
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Bfm 30 bfm 50 bfm 80 models installation instructions and users manual united kingdom closed combustion water heater.
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2 introduction read the installation instructions before installing the water heater. Read the user-instructions before lighting the water heater. If these instructions are not followed carefully, this may lead to explosion and/or fire and can cause material damages and/or physical harm. Installatio...
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3 contents page 1. General 1.1 water heater description ..................................................................................................................... 5 1.2 technical safety equipment ................................................................................................
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4 figure 1 1) top-box 9) ventilation fan 2) air proving switch 10) anode 3) temperature regulator 11) flue tubes on/off switch 12) flue baffle reset-knob 13) diaphragm 4) burner controller 14) insulation 5) gas valve 15) burner 6) manifold / injectors 16) air diffusion plate 7) pilot burner 17) cond...
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5 1. General 1.1 description of the appliance construction and fitting out of the storage appliance comply with the european standard for gas fired hot water storage appliances for sanitary use (en89). The appliance thereby satisfies the requirements of the european directive for gas appliances, and...
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6 1.2 technical safety equipment 1.2.1 gas control the water heaters are equipped with a gas control valve which regulates the flow of gas to the burner. The combination gas control is equipped with a safety valve, gas control valve, pilot safety valve and burner control (on a standard natural gas s...
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7 figure 3 - differential pressure switch figure 2 - positioning ventilation.
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8 1.3 technical description 1.3.1 measurements see figure 4 all dimensions in mm, rounded up to the nearest 5 mm. Size bfm 30 bfm 50 bfm 80 a 1995 1995 2020 b 1795 1795 1820 c 600 600 600 d 520 520 525 e 600 600 590 f 1640 1640 1655 g 1360 1360 1360 h 630 630 625 k 710 710 710 l 1000 1000 1000 m 755...
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9 figure 4 im d -0 05 7-r 0
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10 description unit bfm 30 bfm 50 bfm 80 data natural gas g 20 nominal gas inlet pressure mbar 20 20 20 burner pressure mbar 12.5 12.5 12.5 input kw 29 47 75 output to water kw 27 42 68 gas consumption* m3/h 3.0 4.7 7.9 diameter main injector m m 2.60 2.50 2.70 diameter injector ignition burner m m ...
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11 im d -0 06 5 2. For the installer if possible, use a trolley or fork-lift truck to move the water heater. Always move the water heater in an upright position. 2.1 installation instructions the following distances should be observed: - sides of the water heater: 100 cm (free space for the accessib...
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12 im d -0 06 6-r 0 depending on the length and insulation of the water piping and the water demand frequency, it may be necessary to install a circulation system on the drain cock. The return pipe of the circulation piping can be fitted on the top of the drain cock after the sealing plug has been r...
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13 im d -0 05 9 depending on the water demand pattern (e.G., small amounts frequently), it may be necessary to circulate the water in the water heater to prevent temperature stratification. Therefore, we recommend that a circulation system is installed in the event of such demand patterns (see figur...
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14 flue configuration / horizonal discharge bfm-unit measurement bfm 30 bfm 50 bfm 80 min. Max. Min. Max. Min. Max. A 0 7000 0 7000 0 7000 b 0 7000 0 7000 0 7000 a+b all measurements are in mm. The following applies for the horizontal pipe: slope of at least 5 mm per metre of pipe to the water heate...
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15 im d -0 06 1 im d -0 06 2 figure 10 and 11 - roof discharge. All measurements are in mm. The following applies for the horizontal pipe: slope of at least 5 mm per metre of pipe to the water heater. A maximum of 2 bends (45° or 90°) may be used with flue configurations roof discharge bfm-unit meas...
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16 2.1.6 electrical connection all electrical connections must be carried out by a registered electrical contractor to the relevant regulations. The bfm must be connected to a supply voltage by means of a permanent electric connection and have a feeder cable not less than 3 x 1,0 mm². Supply voltage...
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17 figure 12 - electrical connection diagram bfm im d 0 05 5 r 1.
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18 figure 13 - connection diagram control-column. D) transformer 230 e) air proving switch f) emc single phase filter g) reset knob h) thermostat frost k) thermostat regulation l) switch on/off m) thermostat overheat n) thermostat high limit p) automatic burner controller r) relay x) plastic connect...
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19 2.2 turning the water heater on 2.2.1 filling the water heater 1. Assemble the drain-off tap and check that it is closed. 2. Open the cold water tap to the water heater and open all taps on hot water outlet points to vent them. The heater is filled as soon as cold water pours out of all outlet po...
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20 figure 14 - checking the gas pressures 2.5 checking the gas pressures the nominal load has been set at the correct value in the factory. A further check of the pressure should be carried out during the commissioning of the unit. A dangerous situation can occur if the following instructions are no...
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21 2.6 conversion to another gas important: install a gas valve suitable for the type of gas to be used. If the water heater has to function on a gas category (lp or natural gas) other than the gas set as standard (ex works), the water heater must be converted to the applicable gas category with the...
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22 2.7 maintenance the water heater must be checked and cleaned regularly (at least once a year) by an accredited installer, so that proper operation is guaranteed. The bar burners, control and safety valves must also be checked. (see figure 17). 2.8 anode the life of the anode is determined by the ...
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23 2.10 condensation if the water heater has been filled with cold water or if the hot water usage has been very high, normally condensation of the flue gasses will occur on the cold sides of the combustion chamber and the flue tubes. The water drops will fall on to the burner bed which can cause a ...
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24 3. For the user 3.1. Instructions for use installation and commissioning of the water heater should only be undertaken by a registered installer. 3.1.2 filling the water heater 1. Assemble the drain-off tap and ensure it is closed; 2. Open the cold water tap to the water heater and open all taps ...
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25 no or insufficient hot water. Check whether the electricity is turned on. Check whether the gas supply is turned on. Does the on/off switch light up? Does the resetswitch light up? Push reset switch up to three times is the water heater in operation? Consult your installer. 4. Fault finding 4.1 f...
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26 4.2 fault finding installer check if on/off switch is in position 1? Put on/off switch in position 1. Problem solved yes is the water heater in operation? Problem solved yes is the water heater in operation? Problem solved yes is the water heater in operation? Yes no no no no no yes see detailed ...
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27 4.3 detailed fault finding installer no check voltage present at connection 1. Reinstate voltage supply no ensure connections correct, if yes replace filter ensure connections correct, if yes replace on/off switch check voltage present after filter check voltage present at gate 3 on/off switch ch...
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28 ensure connections correct, if yes replace maximum thermostat check voltage present at gate 12 maximum thermostat? Check voltage present at gate 1 burner automation s4560d 1150? Check voltage present at gate 8 burner automation is ventilating fan in operation? Check voltage present at gate 7, bur...
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29 yes yes yes yes yes yes yes yes no no no no no no no check voltage present at gate 12 eco check voltage present at gate 11 burner automation pressure h higher then 300 pa? Pressure l less then 0 pa? Check voltage present at gate 2 burner automation does the reset switch light up? Check voltage pr...
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30 re-instate gas supply and reset water heater water heater in in operation? Gas supply present? Problem solved ionisation problems. Carry out 3 reset cycles to make sure the pilot is provided with gas. Check gasconnections towards the pilot burner. Carry out one more reset cycle. If no operation i...
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31 5. Warranty the following conditions form the guarantee agreement between a.O. Smith water products company (the warrantor) and the owner of the water heater. 5.1 guarantee in general if within one year of the original installation date of the water heater any part or component other than the tan...
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32 0305 664 r0