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Supplied By www.heating spares.co  Tel. 0161 620 6677

7

Servicing, Maintenance

 and Spare Parts

Servicing and Maintenance

To ensure the continued efficient and safe operation of the 

boiler it is recommended that it is checked and serviced as 
necessary at regular intervals.  The frequency of servicing will 
depend upon the particular installation conditions and usage, 
but in all cases the boiler must be serviced at least once a 
year.
If this appliance is installed in a rented property there is a duty 
of care imposed on the owner of the property by the current 
issue of the Gas Safety (Installation and Use) Regulations, 
Section 35.
Servicing/maintenance should be carried out by a 

competent 

person

 in accordance with the rules in force in the countries 

of destination.
To obtain service, please call your installer or Glow-worm’s 
own service organisation using the telephone number on the 
inside front cover of this literature.
“Benchmark” scheme
Glow-worm support the Benchmark initiative. It is very 
important that the Installation, Commissioning and Service 
Record is completed by the installation engineer and handed 
over to the user.

Spare Parts

Remember, when replacing a part on this appliance, use 
only spare parts that you can be assured conform to the 

safety and performance specification that we require.  Do not 

use reconditioned or copy parts that have not been clearly 
authorised by Glow-worm.
If a part is required contact Glow-worm’s own service 
organisation.
Please quote the name of the appliance, this information will 
be on the name badge on the front of the appliance.
If in doubt seek advice from the local gas company or Glow-
worm’s own service organisation using the telephone number 
on the inside front cover of this booklet.

Summary of Contents for Betacom 24c

Page 1: ...www glow worm co uk Installation and Servicing High Efficiency Condensing Combination Boilers Betacom 30c G C No 47 019 09 24c G C No 47 019 08 1 2 3 4 bar 0 1 0 22 21 20 19 18 17 16 15 14 13 12 11 10...

Page 2: ...worm appliance call 0800 0732142 Benchmark places responsibilities on both manufacturers and installers The purpose is to ensure that customers are provided with the correct equipment for their needs...

Page 3: ...iler Dimensions and Hydraulic Schematic Boiler Location Clearances and Ventilation Flue Options and Terminal Clearances Water System Heating Water System Domestic Hot Water Installation Preparation Bo...

Page 4: ...as possible Always use assistance if required Important Information WARNINGS Gas Leak or Fault Turn off the gas emergency control valve immediately Eliminate all sources of ignition i e smoking blowla...

Page 5: ...here no specific instructions are given reference should be made to the relevant British Standard Code of Practice In IE the installation must be carried out by a competent person approved at the time...

Page 6: ...ilt frost protection device that fires the boiler s burner when the temperature of primary hydraulic water falls below 6 C The device works irrespective of any room thermostat setting and will protect...

Page 7: ...obtain service please call your installer or Glow worm s own service organisation using the telephone number on the inside front cover of this literature Benchmark scheme Glow worm support the Benchma...

Page 8: ...e 85 C 85 C Maximum domestic hot water output at 35 o T 9 4 L min 10 5 L min Expansion vessel capacity 7 litres 1 53 gallons 8 litres 1 76 gallons Expansion vessel pre charge pressure 1 0bar 14 6 Ibf...

Page 9: ...it Turbo heat exchanger 16 OverheatSafetythermostat 17 Ignition Electrode 18 Heating Circuit Pressure Safety Valve 19 Secondary Heat Exchanger 20 Automatic Air Vent 21 Water Pressure Switch Sensor 22...

Page 10: ...oted The general arrangement of the boiler is shown in diagram 2 1 and the hydraulic and gas schematics diagrams showing the central heating hydraulic circuit and domestic hot water hydraulic circuit...

Page 11: ...frame building it should be fitted in accordance with the Institute of Gas Engineers document IGE UP 7 1998 If in doubt seek advice from local gas undertaking or Glow worm 3 4 Combustible Material The...

Page 12: ...Section 9 page 25 Twin Flue Twin Flue Adapter concentric flue 80 Part No A2011000 Section 9 page 32 Diagram 4 1 Plume Management Kit basic set white concentric flue 60 100 Part No A2044100 for use wit...

Page 13: ...l positioning must be those detailed in I S 813 Domestic Gas Installations The terminal must be exposed to the external air allowing free passage of air across it at all times Being a condensing boile...

Page 14: ...accordance with BS7593 2006 using a cleanser such as Sentinel X300 or X400 Fernox Restorer or Salamander corrosion guard cleaner IMPORTANT Ensure all cleanser is removed from the whole system before...

Page 15: ...upply to the boiler Where cold water mains are fitted with a water meter check valve s or loose jumper stopcock a domestic hot water mini expansion vessel may need to be fitted To obtain the best hot...

Page 16: ...stallation of the appliance 4 Roll the carton onto its open face 5 Lift the carton free of the inner packaging 6 Remove the mounting bracket and valve package 6 Installation Preparation Diagram 6 1 Di...

Page 17: ...espective of internal or external installation Remove the wall template whilst drilling the flue hole 6 4 Flue Hole Cutting External access flue installation can use a 105mm diameter core drill Intern...

Page 18: ...t is advisable to use a compression type fitting to extend the safety discharge valve tube The pipe must have a continuous fall and be routed to a position so that any discharge of water possibly boil...

Page 19: ...eferably of 32mm diameter to prevent freezing in adverse weather conditions It is not necessary to provide air breaks or extra traps in the discharge pipe as there is already a 75mm high trap inside t...

Page 20: ...Supplied By www heating spares co Tel 0161 620 6677 20 8 Condensate Connections Diagram 8 3 13000...

Page 21: ...he flue system must be designed to have a continuous fall to the boiler of at least 2 5 44mm metre to allow condensate to run back into the boiler and out via the condensate drain The flue can be inst...

Page 22: ...Supplied By www heating spares co Tel 0161 620 6677 22 14005 Diagram 9 3 15532 9 Telescopic Flue Length Preparation and Installation Diagram 9 2...

Page 23: ...an 315mm DO NOT cut the flue it can project to a maximum of 600mm refer to diagram 9 5 If this is not desirable then a Standard flue MUST be used and cut to length 9 4 SIDE Flue Temporarily secure the...

Page 24: ...bly to be drawn back up to the flue elbow Secure the flue elbow in position on top of the boiler with the four screws supplied Draw the flue assembly from wall and engage the flue duct into the elbow...

Page 25: ...ength MUST be reduced by 1 metre The diagram 9 10 shows the length achievable by using the kit A2043400 When extension pipes are used the flue system must be designed to have a continuous fall to the...

Page 26: ...Supplied By www heating spares co Tel 0161 620 6677 26 Diagram 9 11 13222 9 Standard Flue Length Preparation and Installation Diagram 9 12 15532...

Page 27: ...s 180mm to suit a 75mm min wall thickness The flue can project to a maximum of 600mm refer to diagram 9 14 9 9 SIDE Flue Temporarily secure the flue elbow measure the distance from the outside wall to...

Page 28: ...he flue terminal see diagram 9 17 Push the flue assembly into the wall externally or internally initially until the end of the assembly protrudes a short way from the inside face of the wall This will...

Page 29: ...metre see diagram 9 18 NOTE 2x45 bends can replace 1x90 bend if necessary When using 90 bends any horizontal extension pipe should be inclined by a minimum of 44mm metre 2 5 towards the boiler to fac...

Page 30: ...ied see diagram 9 22 The rubber O rings of each section should be lubricated prior to assembly NOTE Do not use mineral oils or grease silicon grease or water is recommended When installing the flue it...

Page 31: ...esired length measuring from the O ring end and discard the plain end of the tube The cuts must be square and made free of burrs to allow correct assembly NOTE The flue pipe is 10mm longer than the ai...

Page 32: ...Tel 0161 620 6677 32 9 Twin Flue Length Preparation and Installation Diagram 9 24 14530 Secure long flue lengths horizontal vertical to walls or ceiling at every joint or on straight flue runs at eve...

Page 33: ...ssary The maximum permitted combined air inlet flue outlet flue length is 14 3 metres for Betacom 24C 11 9 metres for maximum flue length must be reduced by 1 metre see diagram 9 24 NOTE When using 90...

Page 34: ...Pitched Roof Fit the required pitched roof weather collar over the 150mm hole in the roof Make good the tiling or slating around the collar incorporating the flashing of the weather collar Position th...

Page 35: ...t wiring cannot be put right under the terms of the Glow worm guarantee All system components must be of an approved type Electrical components have been tested to meet the equivalent requirements of...

Page 36: ...room thermostat terminal block remove the front panel secured with two screws lift off the two retaining lugs see diagram 10 1 Carefully pull forward and down the controls fascia see diagram 10 2 On c...

Page 37: ...as indicated in diagram 10 6 NOTE Ensure that the polarity of the mains connection is correct as reversed polarity may cause the appliance to malfunction NOTE While the boiler s main pcb pump three wa...

Page 38: ...diagram 11 2 The manual feed valves must be closed and the filling loop disconnected once the pressure sensor sited on the boilers control panel indicates a system pressure between 1 0 and 1 5 bar see...

Page 39: ...seconds Switching back to its previous position once the fault has been eliminated Function switch The three position switch allows the boilers operation to be set to Stand by centre position Heating...

Page 40: ...the pressure setting After correct adjustment see Boiler specification section page 8 re connect the electrical connector and protective cover and replace the sensing tube to the boiler Maximum settin...

Page 41: ...acom 30c 28 5 25 7 3 02 2 72 11 6 Checking the gas rate The boiler is fitted with a fully modulating automatic gas valve With all other gas appliances turned off measure the gas rate at the gas meter...

Page 42: ...and CH start up This delay can be set to 45 seconds by setting dip switch 3 into the OFF position see diagram 11 10 and 11 11 255 seconds delay setting The boiler is capable of up to 255 seconds ignit...

Page 43: ...d components It is the Law that any servicing is carried out by a competent person approved at the time by the Health and Safety Executive Advise the user that like all condensing boilers this applian...

Page 44: ...e cables must be removed by opening the control panel and gaining access to the PCB Disconnect the plugs of the ignition and flame ionisation electrodes see diagram 11 15 Fit new injector bar manifold...

Page 45: ...ction switch to the winter position Turn the Central Heating temperature control knob to the maximum position Push the ball inside gas valve modulating coil using a sharp pointed tool Turn outer nut w...

Page 46: ...stem pressure the combustion performance refer to the following procedure The operational gas inlet pressure and gas rates refer to the commissioning section paragraph 11 5 Correct any fault before co...

Page 47: ...ance the combustion values are still unacceptable and after further remedial work has been carried out the appliance must be disconnected until the CO CO2 ratio is acceptable Advice can be sought from...

Page 48: ...2 Diagram 12 3 Diagram 12 4 1 2 3 4 bar 0 4 1 0 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 3 2 1 24 23 ON 30 40 50 60 70 80 90 bar SIDE PANELS SECURING SCREWS SECURING SCREWS 4 OFF SECURING SCR...

Page 49: ...to damage painted finish of heat exchanger Clean the burner by washing in soapy water Allow to dry thoroughly before re fitting Do not use wire or a sharp instrument to clean the burner injectors Ens...

Page 50: ...VALVE DOMESTIC HOT WATER SENSOR CENTRAL HEATING NTC SENSOR THREE WAY VALVE PUMP FAN PRINTED CIRCUIT BOARD L E N 230V 50Hz PERMANENT MAINS SUPPLY FUSED AT 3A 24V ROOM THERMOSTAT CONNECTION low voltage...

Page 51: ...a gas supply to the boiler and the gas service isolation valve is turned on see diagram 13 2 Check pressure at the gas service isolation valve refer to section 11 5 Check that the heating system pres...

Page 52: ...Supplied By www heating spares co Tel 0161 620 6677 52 13 Fault finding 13 2 Fault finding chart 1 Check electrical supply central heating sensor and frost protection 14496 Diagram 13 4 6...

Page 53: ...iagram 13 5 Diagram 13 6 4 Ensure DHW taps are closed Put CH temperature Is overheat thermostat LED flashing Check and if necessary replace Check and if necessary reset or replace Ensure external cont...

Page 54: ...es co Tel 0161 620 6677 54 13 Fault finding 13 4 Fault finding chart 4 Check domestic hot water operation 13 5 Fault finding chart 5 Check domestic hot water and central heating modulation 14499 14500...

Page 55: ...Supplied By www heating spares co Tel 0161 620 6677 55 13 Fault finding 13 6 Fault finding chart 6 Check ignition system 15558 Diagram 13 9...

Page 56: ...ts open the heating flow and return isolating valves and refill vent and pressurise the heating circuit refer to section 11 2 Check for leaks 14 2 Draining of Boiler Hot Water Circuit Drain the Domest...

Page 57: ...the same value as the old PCB 14543 14578 14494 14577 Diagram 14 3 Diagram 14 5 Diagram 14 6 Diagram 14 4 14 7 Burner Refer to section 12 3 to replace the burner Retain all washers gaskets for use on...

Page 58: ...of the boiler Remove the pump assembly Refer to diagram 14 10 Remove the pump body automatic air vent and brass union connector from the R H hydraulic assembly by releasing the clips Fit these to the...

Page 59: ...re assembly Remove the combustion chamber cover see section 12 1 Carefully remove the heat exchanger by pulling forward taking care not to damage the insulation Fit the new heat exchanger and reassemb...

Page 60: ...f required Minimum setting Remove the sensing tube from the gas valve Remove one lead from the modulating gas valve coil see diagram 14 15 Refer to diagram 14 16 Connect a suitable pressure gauge to t...

Page 61: ...olerance Betacom 24c Betacom 30c 28 5 25 7 3 02 2 72 Checking the gas rate The boiler is fitted with a fully modulating automatic gas valve With all other gas appliances turned off measure the gas rat...

Page 62: ...Diagram 14 18 Diagram 14 17 14 16 Overheat safety thermostats For access refer to section 14 1 Remove the front panel combustion chamber cover and right side panel Refer to diagram 14 17 Locate the o...

Page 63: ...n the isolating valves on the flow and return connections refill vent and pressurise boiler ensuring all joints are sound 14 19 Filter For access refer to section 14 1 Drain the boiler circuit refer t...

Page 64: ...0020061567 No Description Model Part No 16 Injector 30c 0020061568 17 Diverter motor 0020061621 18 Burner 24c 0020061564 19 Burner 30c 0020061565 20 Secondary heat exchanger 24c 0020061614 21 Secondar...

Page 65: ...Supplied By www heating spares co Tel 0161 620 6677 65 14595 Diagram 15 17 1 2 3 4 5 6 8 9 10 17 11 12 13 22 23 28 29 24 25 26 27 14 15 16 18 19 20 21 15 Spare parts 7...

Page 66: ...ep back straight bend using legs Keep load as close to body as possible Always use assistance if required Dispose of packaging in a responsible manner Recommend wear suitable cut resistant gloves with...

Page 67: ...Supplied By www heating spares co Tel 0161 620 6677 67 17 Declaration of conformity...

Page 68: ...res co Tel 0161 620 6677 www high efficiency info Because of our constant endeavour for improvement details may vary slightly from those shown in these instructions Glow worm Nottingham Road Belper De...

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