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Installation

Installation and maintenance instructions for Buderus 500 - 24/S • 08/2006

Subject to modifications resulting from technical improvements!

Buderus • http://www.buderus-domestic.co.uk

Installation

1.1

Technical specifications

Dimensions

Unit

500 Series wall-mounted condensing gas

system boiler

500 - 24/S

Type of gas supply as established in
EN 437 (GB/IE)

GB/IE II

2H3P

20 mbar, 37 mbar

(natural gas

and LPG)

Rated thermal load for heating
Rated thermal load for preparing hot water

kW
kW

5.7 - 23.0
5.7 - 28.5

Rated heating capacity for system temperature (modulating
from 30° to 100°)
Heating curve 75/60

Heating curve 40/30

kW
kW

5.3 - 22.0
6.0 - 24.0

Seasonal efficiency (SEDBUK)

for natural gas
for LPG

%
%

90.3
92.3

Max. gas rate for heating
Max. gas rate preparing hot water

3.02
2.43

Central heating installation

Heating water temperature

°C

30 - 80

T at residual head of 200 mbar

°C

< 20

Max. operating pressure of boiler

bar

3.0

Pump over run time

min

Expansion vessel

Capacity of expansion vessel

7.5

Admission pressure of expansion vessel

bar

1.0

Pipe connections

Gas on installation frame (compression fitting)

Ø mm

CH flow/return (compression fitting)

Ø mm

MCW inlet / DHW outlet (compression fitting)

Ø mm

Condensate water outlet

Ø inch

Pressure relief valve (compression fitting)

Ø mm

15 (adapter supplied with boiler)

Содержание 500 - 24/S

Страница 1: ...15 3000 08 2006 GB IE EN For the installer Please read thoroughly 7215 3000 08 2006 GB IE en For the installer Installation and maintenance instructions Gas wall hung Boiler condensing Buderus 500 24...

Страница 2: ...may result in minor deviations in illustrations functional steps and technical data Updating the documentation If you have suggestions for improvement or have found discrepancies please do not hesitat...

Страница 3: ...consists of the following components 500 Gas condensing boiler 24 Maximum output is 24 kW S System boiler Important general instructions for use Only use the boiler in accordance with its designated u...

Страница 4: ...ment IGE UP 7 1998 and BS 5440 1 Bathroom Installations This appliance is rated IP X4D The boiler may be installed in any room or internal space although particular attention is drawn to the requireme...

Страница 5: ...onjunction with this appliance For more information contact Buderus Technical Product Support Department It is most important that the correct concentration of the water treatment product is maintaine...

Страница 6: ...W Mains Cold Water N Neutal JB Junction Box RTH Converter PL Permanent Live Prog Programmer PRV Pressure relief valve safety valve RT Room Thermostat RV ModuLink 250 RF Receiver T Timer TRV Thermostat...

Страница 7: ...dulating from 30 to 100 Heating curve 75 60 C Heating curve 40 30 C kW kW 5 3 22 0 6 0 24 0 Seasonal efficiency SEDBUK for natural gas for LPG 90 3 92 3 Max gas rate for heating Max gas rate preparing...

Страница 8: ...0 30 C C C 60 35 CO2 full load natural gas standard test gas G20 9 2 CO2 full load natural gas standard test gas LPG 10 3 Standard emission factor CO mg kWh 22 Standard emission factor NOx mg kWh 30 F...

Страница 9: ...mm 328 mm 376 mm 721 mm 200 mm 5 93 mm 1 2 3 85 mm 1 2 3 5 outside edge frame 222 mm 352 mm 403 8 mm 92 mm 4 230 mm 152 mm 8 mm 8 mm 21 mm 21 mm 8 mm 1 CH flow 22 mm compression fitting 2 Gas Gas con...

Страница 10: ...ame instruction 1 x Envelope for Warranty card 7 Plastic bag containing the following accessories 4 x wall fixing screws 4 x wall plugs 4 x washers 8 x fixing screws for wall spacing frame Seals 1 x G...

Страница 11: ...and in addition for smallbore and microbore systems BS 5449 or EN 12823 1 6 Pipe connections Pipework from the boiler is routed downwards as standard but may be routed upwards behind the boiler using...

Страница 12: ...onnecting drainage pipework should generally have a fall of at least 2 5 to the horizontal or approximately 50 mm per metre of pipe run If this is can not be achieved consider the use of a condens pum...

Страница 13: ...nd be connected to the stack at a point at least 450 mm above the invert of the stack The trap built into the boiler will provide this 75 mm fig 8 condensate seal External termination via internal bra...

Страница 14: ...inage pipe via internal discharge branch e g sink waste proprietary fitting and condensate syphon No length restriction Boiler Open end of pipe direct into gully below ground but above water level 21...

Страница 15: ...air at all times Terminal Position Minimum Spacing A Directly below above or alongside an opening window air vent or other ventilation opening 300 mm B Below guttering drain pipes or soil pipes 200 m...

Страница 16: ...exhaust in a closed installation A ventilation cover is integrated into the 500 Series condensing gas system boilers This cover houses a number of components such as the burner and the heat exchanger...

Страница 17: ...oilers is determined by the total pressure loss of all components in the flue gas exhaust air supply system Maximum length of horizontal or vertical extensions for 60 100 flue system is L 12 m Maximum...

Страница 18: ...t roof pitched roof fig 17 Horizontal flue length A L 60 100 flue system For every bend or extension the max flue length L has to be reduced by 500 mm extension 0 5 m 1000 mm extension 1 0 m 90 bend 1...

Страница 19: ...Fit the vertical flue adaptor fig 18 onto the appliance flue connector 1 7 7 Connecting the horizontal flue turret z Fit the horizontal flue turret fig 19 onto the appliance flue connector IMPORTANT...

Страница 20: ...the male end of the ducts z Push the assembly through the wall and slide the turret onto the flue connector Refer to figure 19 Ensure that the turret is fully entered into the socket on the boiler z F...

Страница 21: ...on in both poles or by a three pin connector serving only the boiler and system controls This boiler is equipped with a double pole switch see fig 24 item 1 The means of isolation must be accessible t...

Страница 22: ...low sand filled IMPORTANT The wires in this mains lead are coloured in accordance with the following code GREEN AND YELLOW EARTH BLUE NEUTRAL BROWN LIVE As the colours of the wires in the mains lead o...

Страница 23: ...ModuLink 250 RF see subsection 1 10 3 or other recommended Buderus 24V controls a room temperature control device at 230V connected to the rth converter see subsection 1 10 4 S plan and Y plan or an O...

Страница 24: ...lting from technical improvements z Connect the thermostat s cable supplied with the thermo stat to the receiver fig 27 z Refit the casing fig 27 item 1 z Slide the receiver into the bracket supplied...

Страница 25: ...m the same fused isolator as all other controls on the heating system L N E fig 24 z Remove the securing screw of the DBA and lower the DBA see fig 31 z Disconnect the twin cable of the rth converter...

Страница 26: ...trols through the cable gland z Identify the 230V terminal block by the shaded area and 230V label z Connect the switch live to terminal 1 and a neutral to terminal 2 fig 33 item 2 z Replace covers 1...

Страница 27: ...nly Key to abbreviations AV Air Vent BCT Buderus cylinder thermostat BDV Buderus diverter valve CB Connector Block CHF Central Heating Flow CHR Central Heating Return JB Junction Box RTH Converter LSV...

Страница 28: ...JB Junction Box RTH Converter LSV Lockshield Valve PL Permanent Live Prog Programmer RT Room Thermostat TRV Thermostatic Radiator Valve WC Wiring Centre fig 35 Prog reference room main living area oth...

Страница 29: ...Permanent Live Prog Programmer RT Room thermostat TRV Thermostatic Radiator Valve WC Wiring Centre ZV Two port Zone Valve fig 37 Prog reference room main living area other rooms JB CB CT ZV TRV LSV LS...

Страница 30: ...ould the flow check fail the boiler will shut down for a short while and then try to start up again If no flame develops then the gas valve closes and the fan continues to run to post purge The boiler...

Страница 31: ...the system to a pressure of approx 1 5 bar fig 40 item 3 z Shut both stop valves z Disconnect the filling loop z Vent all radiators from air starting with the lowest radiator and working your way up...

Страница 32: ...inage hose fig 42 z Close the CH return and CH flow valves z Connect draining hose to draining point on the manifold fig 42 item 1 z Open draining point to drain the boiler fig 42 item 1 Fill the cond...

Страница 33: ...g code is in the display it is possible to try and restart the boiler by pressing this button 3 Service Button A see fig 45 The boiler will operate on partial load when the Service button A is pressed...

Страница 34: ...es the current CH flow temperature setting 6 and 7 Up C and Down D keys see fig 45 These keys can be used for adjusting temperatures and activating or de activating certain summer operation The C key...

Страница 35: ...pipe when the gas shut off valve is open may not exceed 150 mbar 2 1 4 Checking the gas type It is very important that the gas type to which the boiler will be connected corresponds to the gas type t...

Страница 36: ...e fig 53 item 2 z Slowly open the gas shut off valve fig 52 item 2 z Open at least two radiators z Set the mains switch fig 51 item 1 to 1 z Create a heat demand by pressing the service button A fig 5...

Страница 37: ...ut off valve underneath the boiler see fig 52 item 1 z Open at least two radiators z Open the top measuring nipple see fig 54 item 1 with two turns z Set the pressure gauge to 0 z Connect a tube from...

Страница 38: ...item 2 z Turn the mains power switch to 1 see fig 51 item 1 2 1 7 Gas rating test z Isolate all other appliances z Press the service button A to set the boiler to full load z Ensure that there is no...

Страница 39: ...er the reading on the report form z Set the mains power switch to 0 see fig 51 item 1 z Remove multimeter and restore the connector and socket connection to its original state z Refit the casing and s...

Страница 40: ...cal wiring 3 2 2 Check the combustion chamber and heat exchanger for pollution 3 2 3 Check the burner 3 2 4 Check the functioning and safety of the flue gas exhaust 3 2 5 Check the pre pressure of the...

Страница 41: ...remove the connectors of the ionisation electrode fig 61 item 6 and the glow ignitor fig 61 item 5 z By turning the unit a quarter turn fig 62 step 1 the unit can be removed by lifting it out of the b...

Страница 42: ...the seal when in doubt z Reassemble in reverse order 4 2 Cleaning the condensate trap and syphon z Remove the condensate trap fig 64 and fig 65 z Clean the condensate trap with tapwater and a brush z...

Страница 43: ...s after the reset button B is pressed for 5 seconds Code Key to display code 0 Y The flow sensor or safety sensor has detected that the current CH flow temperature is higher than 95 C 1 C The flue gas...

Страница 44: ...at 900 l h 400 Description Product No 17 Backside heat exchanger 73657 18 Gasket heat exchanger 73578 19 Heat exchanger 73659 20 Frontside heat exchanger 78125 21 Sight glass 73662 22 Combustion divid...

Страница 45: ...9s O ring large flow sensor set of 10 pc 78153s O ring 9 19 x 2 62 sensor supply return set of 10 pc 78175s Screw 4 x 20 Hydroframe set of 5 pc 78179s Screw M5 x 30 Pump set of 5 pc 78180s 107 Receive...

Страница 46: ...nts Exploded view Single unit Buderus 500 24 S 43 44 4 34 42 56 49 67 78 2 16 72 23 11 5 27 1 94 42 26 28 58 57 86 79 74 80 81 67 54 77 78 67 67 48 82 74 68 62 47 67 88 87 105 88 67 85 44 43 73 63 18...

Страница 47: ...uderus domestic co uk 6 Index A Automatic air vent 31 B Bracket for ModuLink 250 RF 10 E Electrical connections Mains connection 21 H Horizontal flue 16 I Inspection 40 M Maintenance 41 manifold assem...

Страница 48: ...buderus domestic co uk Buderus is a trading name of BBT Thermotechnology UK Ltd Customer Services Technical Product Support Sales Returns Spares Tel 0870 421 5933 Tel 0870 421 5944 Tel 01905 752 640 T...

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