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Summary of Contents for Glow-worm Energy7 25c ‑A
- Page 1 Installation and main- tenance instructions Energy 25c ‑A (H‑GB) Energy 30c ‑A (H‑GB) Energy 35c ‑A (H‑GB) Energy GB, IE...
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Page 2: Table Of Contents
Contents Contents Checking the factory setting ........ 31 Avoiding danger arising from insufficient water pressure............... 31 Safety ..............4 Switching on the product ........31 Intended use ............4 Filling and purging the heating installation ..31 Qualification ............4 9.10 Filling the domestic hot water circuit.... - Page 3 Contents Pipe lengths for the air/flue pipe ...... 60 Length of the C13 type air/flue pipe..... 60 Length of the C33 type air/flue pipe..... 60 Length of the C43 type air/flue pipe..... 60 Index ................... 61 0020300875_01 Energy Installation and maintenance instructions...
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Page 4: Safety
1 Safety Safety Qualification The person carrying out the work described Intended use here must have completed professional train- The product is intended as a heat generator ing. The competent person must demon- for sealed heating installations and for do- strably have all of the knowledge, skills and mestic hot water generation. - Page 5 Safety 1 ▶ Do not use naked flames (e.g. lighters, 1.3.3 Air supply matches). Unsuitable or insufficient combustion and ▶ Do not smoke. room air may lead to material damage, but ▶ Do not use any electrical switches, mains also to life-threatening situations. plugs, doorbells, telephones or other com- To ensure that the combustion air supply is munication systems in the building.
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Page 6: Regulations (Directives, Laws, Standards)
▶ You can find a list of relevant standards at To prevent material damage that is caused https://www.glow-worm.co.uk/standards. by heat transfer: ▶ Only solder connectors if the connectors are not yet screwed to the service valves. -
Page 7: Guarantee And Customer Service
To register your Glow-worm appliance visit: https://self-service.glow-worm.co.uk/warranty-registration Glow-worm is a licensed member of the Benchmark Scheme. Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in accordance with the manufacturer’s instructions by a competent person approved at the time... -
Page 8: Technical Data
3 Technical data Technical data Technical data – General Energy7 25c ‑A Energy7 30c ‑A Energy7 35c ‑A (H‑GB) (H‑GB) (H‑GB) Gas category Diameter of the gas pipe 1/2 inch 1/2 inch 1/2 inch Diameter of the heating connec- 3/4 inch 3/4 inch 3/4 inch tions... - Page 9 Technical data 3 Energy7 25c ‑A Energy7 30c ‑A Energy7 35c ‑A (H‑GB) (H‑GB) (H‑GB) Maximum heat output 18 kW 25 kW 25 kW Effective output range (P) at 5.4 to 19.5 kW 6.5 to 27.0 kW 7.6 to 27.2 kW 40/30 °C Effective output range (P) at 5.3 to 19.1 kW...
- Page 10 3 Technical data Energy7 25c ‑A Energy7 30c ‑A Energy7 35c ‑A (H‑GB) (H‑GB) (H‑GB) Standby electrical power con- sumption IP rating IPX4D IPX4D IPX4D Installation and maintenance instructions Energy 0020300875_01...
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Page 11: Notes On The Documentation 4
Notes on the documentation 4 Notes on the documentation ▶ Always observe all operating instructions enclosed with the installation components. ▶ Store these instructions and all other applicable docu- ments for further use. These instructions apply only to: Product article number Article number Gas Council Number... -
Page 12: Product Description
Cat. Unit category Benchmark Condensing techno- Efficiency class of the boiler in accord- Glow-worm is a licensed member of the Benchmark logy ance with EC Directive 92/42/EEC Scheme. Type: Xx3(x) Permissible flue gas connections Benchmark places responsibilities on both manufacturers Maximum water pressure in heating and installers. -
Page 13: Functional Elements: Combi Boiler
Product description 5 Functional elements: Combi boiler Safety Devices 5.5.1 Electrical Supply Failure The boiler will not work without an electrical supply. Normal operation of the boiler should resume when the electrical supply is restored. Reset any external controls, to resume normal operation of the central heating. -
Page 14: Set-Up
6 Set-up Set-up Dimensions Unpacking the product Remove the product from its box. Remove the protective film from all of the product's components. Checking the scope of delivery ▶ Check that the scope of delivery is complete and intact. Number Designation Heat generator Unit mounting bracket... -
Page 15: Installation Site
Set-up 6 Installation site Air/flue pipe 6.7.1 Regulation This boiler is not suitable for outdoor installation. This boiler may be installed in any room. However if the boiler is being Different flue outlet configurations can be carried out. installed in a room containing a bath or shower it must only be installed in zones 2 or 3. - Page 16 6 Set-up A terminal guard is required if persons could come into con- tact with the terminal or the terminal could be subject to dam- age. If a terminal guard is required, it must be positioned to provide minimum of 50 mm clearance from any part of the terminal and be central over the terminal.
- Page 17 Set-up 6 6.7.3 Position of the air/flue terminal 6.7.3.1 Positioning the terminal of a fan-supported flue system Installation site Dimensions Adjacent to a boundary. 300 mm The dimension below eaves, balconies and car ports can be reduced to this value, as long as the flue terminal is 25 mm extended to clear any overhang.
- Page 18 6 Set-up Installation site Dimensions Below eaves. 200 mm Below gutters, pipe and drains. 75 mm The dimension below eaves, balconies and car ports can be reduced to this value, as long as the flue terminal is 25 mm extended to clear any overhang. External flue joints must be sealed with suitable silicon sealant. Above adjacent ground or balcony.
- Page 19 Set-up 6 6.7.4.2 Vertical Concentric Flue ⌀ 60/100 mm or 6.7.4 Flue Configuration Description ⌀ 80/125 mm (C33 type installation) 6.7.4.1 Horizontal Concentric Flue ⌀ 60/100 mm or ⌀ 80/125 mm (C13 type installation) Gasket (fitted) Consult the separate installation manual for air/flue gas sys- Note tems supplied with your appliance for all possibilities and as- If the terminal is at less than 1.80 m from the...
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Page 20: Using The Mounting Template
6 Set-up 6.7.4.3 Multiple boiler chimney Flue ⌀ 60/100 mm Using the mounting template (C43 type installation) ▶ Use the mounting template to ascertain the locations at which you need to drill holes. 6.7.4.3.1 Multiple Boiler Chimney Flue Wall-mounting the product Note If you are using the rear air/flue connection, in- stall the air/flue pipe before you wall-mount the... -
Page 21: Removing/Installing The Front Casing
Set-up 6 6.10 Removing/installing the front casing 6.10.1 Removing the front casing 6.11.2 Installing the side section ▶ Refit the components in the reverse order. 6.10.2 Installing the front casing ▶ Refit the components in the reverse order. 6.11 Removing/installing the side section 6.11.1 Removing the side section Caution. -
Page 22: Installation
7 Installation Installation Checking the gas meter ▶ Make sure that the existing gas meter is capable of Preparing for installation passing the rate of gas supply required. ▶ Make sure that the existing gas meter and the pipelines Checking the gas flow rate are capable of passing the rate of gas supply required. -
Page 23: Connecting The Drain Pipework For The Expansion Relief Valve
Installation 7 Caution. Risk of material damage caused by corro- sion Due to non-diffusion-tight plastic pipes in the heating installation, air gets into the heating water. Air in the heating water causes corro- sion in the heat generator circuit and in the product. -
Page 24: Connecting The Condensate Discharge Pipe
7 Installation Connecting the condensate discharge pipe to work incorrectly. Refer to BS5546 or BS6798 for further advice on disposal of boiler condensate. 7.7.1.1 Direct Connection to internal soil and vent stack Ø22mm ▶ Follow the instructions listed here and observe the legal and local regulations on condensate discharge. - Page 25 Installation 7 7.7.1.4 Internal termination into combined sink Open end of pipe direct into gulley below ground level but above water level waste Susceptible to siphonage, must terminate in a gulley 7.7.1.7 External termination into rain water down pipe 100mm ≥...
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Page 26: Flue Installation
7 Installation 7.9.2 Closing the electronics box Preferred option for external connection ▶ Follow the instructions in the reverse order. Flue installation 7.8.1 Installing and connecting the air/flue pipe 7.9.3 Cable route You can find out which air/flue pipes may be used by consulting the enclosed set-up instructions for the air/flue system. - Page 27 Installation 7 7.9.6 Connecting controls to the electronics Only strip inner conductors just enough to establish stable connections. Ensure that the product is voltage-free. To avoid short circuits resulting from loose individual wires, fit conductor end sleeves on the stripped ends of the conductors.
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Page 28: Operation
8 Operation Operation Using check programmes By activating various check programmes, you can trigger Using diagnostics codes various special functions on the product. You can use the parameters marked as adjustable in the Check programmes – Overview table of diagnostics codes to adapt the product to the install- ation and customer requirements. -
Page 29: Start-Up
Start-up 9 Start-up trance or window or any type of public access area, be clear of any electrical fittings and positioned so that any discharge can be seen. Carrying out the initial start-up A diaphragm type expansion vessel, conforming to the cur- Initial start-up must be carried out by a customer service rent issue of BS 4814 (see also BS 7074 Part 1 and 2) must technician or an authorised competent person using the... -
Page 30: Filling The Condensate Siphon
9 Start-up Treating the filling and supplementary water Additives for cleaning measures (subsequent ▶ flushing required) Observe all applicable national regulations and technical – rules when treating the filling and supplementary water. Adey MC3+ – Adey MC5 Provided the national regulations and technical rules do not –... -
Page 31: Checking The Gas Type
Start-up 9 Checking the gas type Switching on the product ▶ Make sure that the product is set up correctly by checking Switch on the product via the main switch installed on- the gas type. This ensures optimum combustion quality. site. -
Page 32: Checking The Gas Setting
9 Start-up 9.11 Checking the gas setting 9.11.2 Checking the gas connection pressure (gas flow pressure) Only a qualified competent person is authorised to imple- ment the settings on the gas valve assembly. Each destroyed seal must be replaced. The CO₂ adjusting screw must be sealed. Never modify the factory setting of the gas pressure regu- lator of the gas valve assembly. -
Page 33: Thoroughly Flushing The Heating Installation ("Hot")
Start-up 9 Condition: Gas flow pressure in the permissible range Great Britain and Ireland ▶ Removed front casing / End the check programme P.01. installed front casing ▶ Allow the boiler to cool down allowing pump overrun to Natural gas operate for a minimum of two minutes. - Page 34 9 Start-up Activate the display for the current operating mode. (→ Page 28) Status codes – Overview (→ Page 50) ◁ If the product is working correctly, the display shows S.04. 9.13.2 Checking the domestic hot water generation Activate the domestic hot water mode on the user interface.
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Page 35: Adapting The Unit To The Installation
Adapting the unit to the installation 10 10 Adapting the unit to the installation Flow rate-pressure curves for 30 kW (pressure measured downstream of the valves) You can reset/change the system parameters (section "Us- ing diagnostics codes"). Overview of diagnostics codes (→ Page 47) 10.1 Setting the burner anti-cycling time To prevent frequent switching on and off of the burner and... -
Page 36: Setting The Domestic Hot Water Temperature
11 Handing over to the end user ▶ When you have finished the installation, affix the en- Condition: d.14 is set to 0 = auto closed sticker (which requests that the user reads the ▶ Do not change the factory settings. instructions) to the front of the product in the end user's language. -
Page 37: Inspection And Maintenance
Inspection and maintenance 12 ▽ 12 Inspection and maintenance The value is not OK; you cannot start up the product. ▶ 12.1 Using original seals Set the CO₂ content. If you replace components, use only the enclosed original 12.5 Removing the gas-air mixture unit seals;... -
Page 38: Cleaning The Heat Exchanger
12 Inspection and maintenance 12.7 Checking the burner Check the surface of the burner for possible damage. If you see any damage, replace the burner. Install the two new burner seals. 12.8 Checking the ignition electrode Remove the gas-air mixture unit (6). Disconnect the connection (2) and the earth cable (1). -
Page 39: Cleaning The Strainer In The Cold Water Inlet
Inspection and maintenance 12 12.10 Cleaning the strainer in the cold water inlet 12.13 Draining the product Close the main cold water supply line. Close the service valves of the product. Drain the product on the domestic hot water side. Start check programme P.05 (→... -
Page 40: Troubleshooting
13 Troubleshooting 13 Troubleshooting operation of the product. To receive information about the available original spare parts, contact the contact address provided on the back page of these instructions. 13.1 Eliminating faults ▶ If you require spare parts for maintenance or repair ▶... - Page 41 Troubleshooting 13 13.6.4 Replacing the pump head Remove the upper clip (1). Disconnect the pump cables from the electronics box. Remove the lower clip (3). Undo the four screws (1). 10. Remove the return pipe (2). Remove the pump head (2). Replace the O-ring.
- Page 42 13 Troubleshooting 13.6.6 Replacing the PCB 13.6.8 Replacing the expansion relief valve Remove the clip (2). Remove the expansion relief valve. Fit the new expansion relief valve with a new O-ring. Reattach the clip (2). 13.6.9 Replacing the volume flow sensor Open the electronics box.
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Page 43: Checking The Product For Leak-Tightness
Troubleshooting 13 13.7 Checking the product for leak-tightness ▶ Check that the product is leak-tight. (→ Page 33) 0020300875_01 Energy Installation and maintenance instructions... -
Page 44: Decommissioning The Product
Close the gas stopcock. ▶ Close the cold-water stopcock. 15 Recycling and disposal Disposing of the packaging ▶ Dispose of the packaging correctly. ▶ Observe all relevant regulations. ▶ For detailed information refer to www.glow-worm.co.uk. Installation and maintenance instructions Energy 0020300875_01... -
Page 45: Appendix
Appendix Appendix Inspection and maintenance work The table below lists the manufacturer requirements with respect to minimum inspection and maintenance intervals. If na- tional regulations and directives require shorter inspection and maintenance intervals, you should observe these instead of the intervals listed. Each time inspection and maintenance work is carried out, carry out the required preparatory and com- pletion work. -
Page 46: B Check Programmes - Overview
Appendix Maintenance work Interval Check the water flow rate (domestic hot water). Insufficient water flow Annually rate → Check the incoming water supply. Incoming water supply sufficient, water flow rate too low → Clean or replace the strainer in the cold water inlet Check the impeller sensor for dirt/damage and, if required, replace it Annually... -
Page 47: C Overview Of Diagnostics Codes
Appendix Overview of diagnostics codes Note Since the code table is used for various products, some codes may not be visible for the product in question. Dia- Values Default set- gnostics Parameter Unit Increment, select, explanation Own setting ting Min. Max. - Page 48 Appendix Dia- Values Default set- gnostics Parameter Unit Increment, select, explanation Own setting ting Min. Max. code – d.18 Pump overrun operat- 1 = Continuous (pump runs per- Adjustable ing mode manently) 3 = Eco (intermittent pump oper- ation – for the dissipation of the residual heat after domestic hot water generation at an extremely low heat demand)
- Page 49 Appendix Dia- Values Default set- gnostics Parameter Unit Increment, select, explanation Own setting ting Min. Max. code – – d.35 Position of the priorit- Current value 0 = Heating ising diverter valve adjustable 40 = Mid-position (parallel opera- tion) 100 = Domestic hot water –...
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Page 50: D Status Codes - Overview
Appendix Dia- Values Default set- gnostics Parameter Unit Increment, select, explanation Own setting ting Min. Max. code – – – d.77 Max. cylinder post- Adjustable heating → Section "Technical data" – d.80 Running time in heat- Current value Running time = Display value x ing mode adjustable –... -
Page 51: E Overview Of Fault Codes
Appendix Status code Meaning S.13 Domestic hot water mode: Burner ignition S.14 DHW mode: Burner on S.15 DHW mode: Pump/fan overrun S.16 DHW mode: Fan overrun S.17 DHW mode: Pump overrun Display in comfort mode with warm start or domestic hot water mode with cylinder S.20 Domestic hot water mode: Requirement S.21... - Page 52 Appendix Fault code Meaning Possible cause F.12 and Short circuit: Cylinder temperature NTC sensor defective, short circuit in the cable harness, cable/housing F.91 sensor F.13 Short circuit: Temperature sensor for the NTC sensor defective, short circuit in the cable harness, cable/housing domestic hot water cylinder F.20 Safety shutdown: Overheating temperat-...
- Page 53 Appendix Fault code Meaning Possible cause F.78 Interruption to DHW outlet sensor at UK link box is connected, but domestic hot water NTC not bridged external control F.83 Fault: Dry fire When the burner starts, the temperature change registered at the flow or return temperature sensor is non-existent or too small: Insufficient water in the product, the flow or return temperature sensor is not in the correct position on the pipe...
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Page 54: F Wiring Diagram: Combi Boiler
Appendix Wiring diagram: Combi boiler Burner off RT 24V X106 eBUS – Burner 24V= 230V~ RT 230Vac 230Vac Main PCB 3-port diverter valve Interface PCB Pressure sensor Timer Flow rate sensor Temperature sensor on the heating flow External ignition transformer Temperature sensor on the heating return Heating pump Ionisation and ignition electrode... -
Page 55: G Wiring Diagram: Combi Boiler (35 Kw)
Appendix Wiring diagram: Combi boiler (35 kW) Burner off RT 24V X106 eBUS – Burner 24V= 230V~ RT 230Vac 230Vac Main PCB 3-port diverter valve Interface PCB Pressure sensor Timer Flow rate sensor Temperature sensor on the heating flow External ignition transformer Temperature sensor on the heating return Heating pump Ionisation and ignition electrode... -
Page 56: H Commissioning Checklist
Appendix Commissioning Checklist Benchmark Commissioning & Warranty Validation Service Record It is a requirement that the boiler is installed and commissioned to the manufacturers’ instructions and the data fields on the commissioning checklist completed in full. To instigate the boiler warranty the boiler needs to be registered with the manufacturer within one month of the installation. - Page 57 Appendix GAS BOILER SYSTEM COMMISSIONING CHECKLIST & WARRANTY VALIDATION RECORD Address: Boiler make and model: Boiler serial number: Commissioned by (PRINT NAME): Gas Safe registration number: Company name: Telephone number: Company email: Company address: Commissioning date: Heating and hot water system complies with the appropriate Building Regulations? Time, temperature control and boiler interlock provided for central heating and hot water Boiler Plus requirements (tick the appropriate box(s)) Weather compensation...
- Page 58 Appendix SERVICE & INTERIM BOILER WORK RECORD It is recommended that your boiler and heating system are regularly serviced and maintained, in line with manufacturers’ instructions, and that the appropriate service / interim work record is completed. Service provider When completing a service record (as below), please ensure you have carried out the service as described in the manufacturers’ instructions. Always use the SERVICE/INTERIM WORK ON BOILER SERVICE/INTERIM WORK ON BOILER Date:...
- Page 59 Appendix SERVICE & INTERIM BOILER WORK RECORD It is recommended that your boiler and heating system are regularly serviced and maintained, in line with manufacturers’ instructions, and that the appropriate service / interim work record is completed. Service provider When completing a service record (as below), please ensure you have carried out the service as described in the manufacturers’ instructions. Always use the SERVICE/INTERIM WORK ON BOILER SERVICE/INTERIM WORK ON BOILER Date:...
- Page 60 Appendix Pipe lengths for the air/flue pipe Length of the C13 type air/flue pipe Validity: C13 type air/flue pipe Diameter of the air/flue pipe Dia. 60/100 (L) Dia. 80/125 (L) C13 type air/flue C13 type air/flue pipe pipe Energy7 25c ‑A ≤...
- Page 61 Index Index Kammerbelüftung ..............15 Kundendienst ................ 7 Air/flue pipe, horizontal wall duct......... 19 Air/flue pipe, installing ............26 Leak-tightness ............33, 39, 43 Air/flue pipe, type C13 ............19 Maintenance work ............... 37 Air/flue pipe, type C33 ............19 Minimum clearance .............
- Page 64 Nottingham Road ‒ Belper-Derbyshire ‒ DE56 1JQ Telephone 01773 824639 ‒ Technical helpline 0330 100 7679 After sales service 0330 100 3142 0020300875_01 www.glow-worm.co.uk 0020300875_01 ‒ 09.11.2020 © These instructions, or parts thereof, are protected by copyright and may be reproduced or distributed only with the manufacturer's written consent.
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