background image

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 tank
shall prove upon examination by the warrantor or
authorised agent to be defective in material or work-
manship, the warrantor will exchange such part or
component.

5.2

Guarantee of the tank

If within 3 years of the original installation date, the tank
fails due to rust or corrosion from the water side, the
warrantor will supply a complete new water heater of
equivalent size and duty (excluding delivery and
installation charges). On the replacement water heater a
guarantee will be granted sufficient to cover the
unexpired portion of the original 3 year guarantee of the
originally installed water heater.

5.3

Conditions for installation and use

The guarantee applies to the water heater only while it
remains in its orignial location, and is installed in
accordance with local plumbing and building
regulations and all relevant Codes of Practice.

The water heater should also have been used only:
a)

for potable water free to circulate at all times and
with the tank free of damaging scale deposits;

b)

at temperatures not exceeding the maximum setting
of its thermostat and ECO (Energy Cut Off device);

c)

at water pressures and/or energy inputs which do
not exceed those stated on the rating plate of the
water heater;

d)

in a non corrosive atmosphere or area;

e)

with an approved temperature and pressure relief
valve of adequate capacity not exceeding the
working pressure rating shown on the water heater,
and installed in conformity with A.O. Smith Water
Products Companies installation instructions;

f)

when anode(s) have been inspected and renewed,
if they are worn or erroded by 50% of more at any
point of their length.

5.4

Exclusions

The guarantee will be null and void:
a)

if the water heater has been damaged by an
external cause;

b)

in case of misuse, neglect (including frost damage)
or incorrect use of the water heater;

c)

in case of unauthorised alteration, modification or
repair;

d)

in case of ingress into the water heater of
chemicals, pollutants or contaminants;

e)

if the hardness of the incoming water is, or has
been, softened below 106 ppm CaCO

;

f)

if the water heater is effected by corrosive vapours
such as those found in hairdressers, dry cleaners

and laundries or where some industrial degreasing
products are used and stored (for further
information and advise please contact the
A.O. Smith Technical Department).

5.5

Range of the guarantee

All replacement water heaters supplied under the terms
of this warranty will be supplied ex stock on an F.O.B.
basis. A.O. Smith accepts no responsability for carriage,
labour or other installation costs.

5.6

Claims

Any claim under this warranty should be initiated with the
dealer who originally sold the water heater or with any
other dealer or stockist of the warrantors products.

5.7

No other guarantee or warranty either
expressed or implied is made on
behalf of A.O. Smith Water Products
Company.

With respect to the water heater in question further A.O.
Smith does not guarantee this water heater as suitable
for purpose except within the terms of warranty detailed
above.

A.O. Smith Water Products Company will not be liable by
virtue of this guarantee or otherwise for damage to any
persons or property when arising out of contracts or tort.

The terms of this guarantee do not effect your statutory
rights under United Kingdom Consumer Legislation.

This guarantee applies to the following models:
BFM 30
BFM 50
BFM 80

Summary of Contents for BFM 30

Page 1: ...BFM 30 BFM 50 BFM 80 MODELS INSTALLATION INSTRUCTIONS AND USERS MANUAL UNITED KINGDOM CLOSED COMBUSTION WATER HEATER...

Page 2: ...sical harm Installation and commissioning should be carried out by a registered installer The type of gas and standard values which the water heater from factory is set on are stated on the type plate...

Page 3: ...urning the water heater off 19 2 4 Usage temperature control 19 2 5 Checking the gas pressures 20 2 6 Conversion to another gas 21 2 7 Maintenance 22 2 8 Anode 22 2 9 Descale procedure 22 2 10 Condens...

Page 4: ...H 10 ANODE 3 TEMPERATUREREGULATOR 11 FLUE TUBES ON OFFSWITCH 12 FLUE BAFFLE RESET KNOB 13 DIAPHRAGM 4 BURNER CONTROLLER 14 INSULATION 5 GASVALVE 15 BURNER 6 MANIFOLD INJECTORS 16 AIRDIFFUSIONPLATE 7 P...

Page 5: ...L3P the appliance is therefore suitable for natural gas as well as propane and butane gases The storage appliance is suitable for working pressures to 8 bar A connection is provided for the optional f...

Page 6: ...perature reaches the set point the water heater is turned off If the flame extinguishes whilst in operation both the safety pilot valve and the gas valve will close immediately If the control thermost...

Page 7: ...7 Figure 3 Differential pressure switch Figure 2 Positioning ventilation...

Page 8: ...0 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 755 755 755 N 80 125 100 150 130 200 1 Co...

Page 9: ...9 Figure 4 IMD 0057 R0...

Page 10: ...8 5 3 Diameter main injector m m 1 45 1 40 1 50 Diameter injector ignition burner m m 0 25 0 25 0 25 GENERAL Storage capacity litre 309 298 253 Number of bar burners 3 5 7 Number of anodes 2 2 4 Numbe...

Page 11: ...essential the rules of good practice are applied at all stages of installation Vented systems If the water heater is to be connected to a cold feed tank or cistern the hot water supply pipe must inclu...

Page 12: ...water supply system a kit of valves and fittings listed by the water research centre and complying with part G3 of the current building regulations and BS 7206 should be used Installation should be c...

Page 13: ...ecommend that a circulation system is installed in the event of such demand patterns see figure 8 Kits are available from A O Smith or our distributors Figure 8 Connection diagram including destratifi...

Page 14: ...e diameter BFM 30 80 125 mm BFM 50 100 150 mm BFM 80 130 200 mm Angle 90 2 max 2 1 3 Condensation drain In order to guarantee the correct operation of the water heater the condensate drain of the wate...

Page 15: ...A 0 7000 0 7000 0 7000 B 0 7000 0 7000 0 7000 A B 7000 7000 7000 Roof discharge see figures 10 and 11 Type M2000 DDV SE HR VR Manufacturer Meulink Grol Pipe material flue tube Thick walled aluminium w...

Page 16: ...gram of the BFM heater and the connections in the control column are shown in figures 12 and 13 Electrical connection diagram BFM see figure 12 A Jacket B Transformer 230V 238V 2VA C Air proving switc...

Page 17: ...17 Figure 12 Electrical connection diagram BFM IMD 0055 R1...

Page 18: ...0 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 R...

Page 19: ...evel see table page 10 2 2 3 Setting up the pilot flame The pilot flame has been adjusted in the factory and does not have to be checked 2 3 Turning the water heater off For short periods 1 Turn the t...

Page 20: ...essure control If you wish to adjust the burner pressure the following procedures must be followed 1 Switch off main power by turning the I O switch to 0 position 2 Connect the U tube manometer to pre...

Page 21: ...ionisation pen on the burner controller c loosen the gas control cable d dismount the gas supply to the gas valve 3 Remove the burner tray from underneath the heater 4 Replace the main injectors and...

Page 22: ...e the concentric flue tube 2 Disassemble the electrical connection of the ventilation fan on the top box 3 Loosen the fastening bolts of the top box 4 Remove the top box the positioning of the anodes...

Page 23: ...des of the combustion chamber and the flue tubes The water drops will fall on to the burner bed which can cause a hissing sound This is normal and will disappear as soon as the water heater has reache...

Page 24: ...ator call for heat The burner automation will operate firstly the ventilation fan for its purge cycle then a spark will ignite the pilot burner The softlite control then ignites the main burner The te...

Page 25: ...SET switch up to three times Is the water heater in operation Consultyourinstaller 4 FAULT FINDING 4 1 Fault finding USER Problem solved no yes yes yes Is the water heater in operation no no Problem s...

Page 26: ...ation 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 fault finding no Does the ON OFFswitch light up Does t...

Page 27: ...yes replace FILTER Ensure connections correct if yes replace ON OFF switch Check voltage present afterFILTER Check voltage present at gate3ON OFF switch Check voltage present at gate 11 and 12 CONTRO...

Page 28: ...Check voltage present at GATE1AIRPROVING SWITCH Check voltage present at GATE7 BURNER AUTOMATION Ensure connections correct if yes replace BURNERAUTOMATION Replace BURNERAUTOMATION Ensure connections...

Page 29: ...OMATION Ensure connections correct if yes replace ECO Ensure connections correct Measure pressure at hose H at the column Ensure connections correct if yes check hose H for leakkage or blockings Ensur...

Page 30: ...s the pilot burner Carry out one more RESET cycle If no operation is valid replace the entire PILOT BURNER assy RESET water heater after replacing the PILOT BURNER Water heater in operation Problem so...

Page 31: ...with A O Smith Water Products Companies installation instructions f when anode s have been inspected and renewed if they are worn or erroded by 50 of more at any point of their length 5 4 Exclusions T...

Page 32: ...32 0305 664 R0...

Reviews: