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Related Manuals for EHC ECOSAVE 21K
Summary of Contents for EHC ECOSAVE 21K
- Page 1 GAS FIRED WALL MOUNTED CONDENSING COMBINATION BOILER FOR SEALED CENTRAL HEATING SYSTEMS AND MAINS FED DOMESTIC HOTWATER THE APPLIANCE IS FOR USE WITH NATURAL GAS OR L.P.G EHC ECOSAVE 21K EHC ECOSAVE 25K EHC ECOSAVE 32K EHC ECOSAVE 37K INSTRUCTION MANUAL INSTALLATION, COMMISSIONING &...
- Page 2 About the instructions Choose The instructions contain important information for the safe, Building professional installation and start-up of the EHC Ecosave gas- Regulations Route Readers of the instructions need to be professional installers, who have been trained and have experience for working on heating and gas systems.
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Page 3: Table Of Contents
Contents Safety Considerations 13. Connecting the Flue Safety Definitions 13.1 For a concentric flue system Symbols Used in the Instructions 13.2 For a separate flue system Important Safety Precautions 14. Electrical Connections and Settings Legislation 14.1 Accessing the Controller Assembly CE Marking Information 14.2 Accessing All the Electrical Connections... -
Page 4: Safety Considerations
Safety Considerations Safety Definitions Important Safety Precautions All safety messages will refer to potential hazards. Precisely DANGER follow the instructions to avoid the risk of injury. If you smell gas This is the safety alert symbol. It is used to alert Gas Leaks can cause explosions, which may you of potential personal injury hazards. -
Page 5: Legislation
Legislation Standard Scope EHC Declares that this appliance is free of any harmful substances, and no harmful substances are used during BS 7074 Expansion vessels and ancillary appliance manufacturing. equipment for sealed water systems BS 7593 Treatment of water in domestic hot... -
Page 6: Product Description
Product Description Description EHC Ecosave condensing gas boiler is a fully automatic, wall hung, fan assisted balanced fl ue condensing boiler for use with Natural Gas and Propane Gas. For gas type conversions see the Appendix on Page 39. This appliance is fully modulating and provides central heating and domestic hot water. -
Page 7: Layout And Key Components
Layout and Key Components Expansion vessel Heat exchanger & latent heat exchanger pipe Heat exchanger outlet Water pressure sensor Air inlet Gas control valve Heat exchanger inlet Magnetic Filter 10 Circulation pump 11 Flow 12 burner 13 Return 14 Pressure Relief 15 Gas Inlet 16 DHW outlet 17 Mains Water In... -
Page 8: Technical Data
Intake/Exhaust Flue Diameter Concentric 60/100 – Separate 80/80 Max. Flue System Resistance Max. Horizontal Coaxial Ø60/100 Flue length (EHC System) Max. Vertical Coaxial Ø60/100 Flue length (EHC System) Equivalent Length of Ø60/100 Bend 90° Equivalent Length of Ø60/100 Bend 45°... -
Page 9: Hydraulic Data
Hydraulic Data The following graph shows the development of the Available Head Pump to the System 1000 1200 1400 1600 1800 Heating Flow Rate(l/h) Technical Data... -
Page 10: Dimensions
Dimensions Front view Overhead view Bottom view All dimensions in mm 55 49.2 122.5 39.1 A: Heating outlet 22mm B: Heating inlet 22mm C: Gas inlet 22mm D: DHW outlet 15mm E: Main water inlet 15mm Dimensions... -
Page 11: System Details
System Details Operation Modes Circuit for CH (central heating) mode Ignition Flame Sensing When central heating is in demand, the three-way valve Electrode Electrode is set to CH mode position. Metal Fibre Burner When the burner has ignited and the flame is detected, the control starts heating up the CH water to the set temperature. - Page 12 Circuit for DHW (Domestic Hot Water) mode Ignition Flame Sensing Electrode Electrode in demand by a tap or shower, the three-way valve Metal Fibre is set to DHW mode position as priority is given to the Burner DHW mode. The primary water circulates through the DHW Heat Expansion Exchanger, and the water coming from the inlet is Mixing Flow...
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Page 13: Safety Functions
Installation Requirements Safety Functions Location Frost Protection DANGER In CH, DHW, and Weather Compensation modes, frost protection The appliance must be fitted to a suitable wall to prevent fire is an integral function for protecting the appliance. This function and explosion. At the installation site, the flue that passes is the highest priority among the operation modes and this through the outside wall or roof must be routed properly in order to satisfactorily remove flue products. -
Page 14: Required Minimum Clearances
Required Minimum Clearances Ventilation appliance. The following minimum clearances (mm) must be the appliance is installed. If it is installed in a cupboard or maintained for installing and servicing. compartment, permanent ventilation for cooling purposes is not required. Detailed recommendations are given in BS 5440 Part 2. -
Page 15: Condensate Drain
Of the above options, EHC recommends option 1 as the soap from the sink neutralizes the acidic condensate. If a sink waste is not abilable, EHC recommends options 2, 3, or 4. If permitted by local regulations, the condensate may be drained directly into the drain/gully. - Page 16 Examples of available options for condensate drain From the appliance to the gully From the appliance to the drain/gully via a sink Visible air break at pulg hole 22 mm plastic Sink with condensate integral pipe Frost proof 100mm overflow insulation (if necessary) 22 mm plastic...
- Page 17 Formula of Length Equivalency The minimum distances between the terminals and elements of the building are as per the following. This is the formula for sizing the pipes for the intake of the combustible air and the discharge of the combustion products. The Length equivalency (L eq) in these instructions are for the lengths of the pipes which share the same cross-sectional dimensions.
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Page 18: Flue
Flue Options Calculating the Overall Length of the Fitting the Concentric Flue System Flue System Concentric Horizontal Flue These flue systems may be oriented in all the various directions of the compass, north, south, west and east. Some special a) Standard flue system (Φ 60/100 mm) components such as concentric bends are used so that certain positions can be reached. - Page 19 Concentric Vertical Flue Φ 60/100 mm) b) Extended vertical flue system (Φ 60/100 mm) Minimum 350 mm Total flue length : A + B – (2 x 45° elbow) = 21 – 2 x 1 = 19.0 m Standard flue system : A = 21 m Diameter of Max Flue Reduced Flue...
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Page 20: Fitting The Separate Flue System
Fitting the Separate Flue System Separate Vertical Flue Separate Horizontal Flue Extended separate horizontal fue system (Φ 80/80 mm) Minimum 350 mm Total flue length: Total flue length: A + B + C + D + E + F – (4 x 90° elbow) A + B + C + D –... -
Page 21: Installation Procedure
Installation Procedure Fitting the flues Transporting and Unpacking section 9. Mounting the Appliance on the Wall section 10. Making the Gas Connection section 11. Fitting the Water Pipes and Condensate Pipe section 12. Connecting the Flue Electrical connections and Settings section 14. -
Page 22: Transporting And Unpacking
Packaged appliances must always be lifted and carried to their destination by two people, or you must use a hand truck or special equipment to transport them to their destination. EHC Gas-Fired Wall Mounted Condensing Combination Boiler Wall Mounting Bracket (including washers and... -
Page 23: Mounting The Appliance On The Wall
Mounting the Appliance on the Wall Mount the appliance on the wall using the following procedures. Mark the installation points for the flues and screws on the wall. Ensure that the points are both horizontally and vertically level. Make a hole for the flues (minimum diameter 116 mm). Drive the supplied anchor bolts for the bracket into the marked points (minimum diameter 13 mm). -
Page 24: Making The Gas Connection
Making the Gas Connection 11.1 Gas Piping Materials WARNING Before completing the gas pipe connection, ensure that WARNING the type of gas is suitable for the appliance. If you use a type of gas other than the one specified on the data plate on the Installation pipes should be fitted in accordance with BS6891. -
Page 25: Gas Supply Pipe Installation Procedures
Check for gas leaks. Valve kit for external connections. Each boiler is supplied with an EHC Valve Kit for each external connection. Please refer to the installation instructions within the valve kit packaging. -
Page 26: Fitting The Water Pipes And Condensate Pipe
Fitting the Water Pipes and Condensate Pipe WARNING Do not add anti-freez to the system as this may shorten the life of the appliance and cause malfunctions. Tighten the boiler connection valves with care to avoid damage. Before using this appliance, thoroughly flush the system (ensure the appliace is not connected) to remove any sediment and prevent the heat exchanger from being damaged by build-up or corrosion due to any sediment. -
Page 27: General Pipework Connections
12.2 General Pipework Connections 12.5 Frost Protection Refer to Code of Practice If the appliance is connected to a system that is potentially frozen isolate the boiler's water and power supply. BS7074:1 Domestic and hot water supply The frost protection is an integral function to protect the appliance BS6891 Installation of low pressure gas pipework up to in CH, DHW and OTC mode. -
Page 28: Connecting The Flue
Connecting the Flue WARNING The exhaust gas ducts must not come in to contact with Adapter or be located close to combustible materials and must not pass through building structures or walls made of combustible materials. When replacing an old appliance, the flue system must be changed. -
Page 29: Electrical Connections And Settings
Electrical Connections and Settings 14.1 Accessing the Controller Assembly Remove the 2 screws from the underside of the appliance. Unlatch all the clips, and pull up the hooks (2 on the top and 2 on the bottom of the appliance). Lift off the front panel from the wall mounted unit. -
Page 30: Accessing All The Electrical Connections
14.2 Accessing All the Electrical Connections DANGER Isolate the main electrical supply before starting any work and check all relevant safety precautions Short circuiting risk: When connecting the cables, Note ensure that no pieces of cable fall into the electrical and and electronic connections. - Page 31 14.3 Connecting to Main Power 230 V The appliance must be connected to the mains Note terminals which are clearly marked on the rear of the control panel with a suitable 3 core flex (supplied). Contact a qualified electrician if the power cable needs replacing. The boiler must be wired to current IEE Regulations.
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Page 32: Connecting The Controller, Accessories And External Controls
14.4 Connecting the Controller, Accessories and External Controls Connecting the Room Thermostat / Programmable Room Stat The appliance is designed to be connected to a volt free room thermostat. Connect the cable to terminal blocks No. 1 and 2. Connecting the Weather Compensation Sensor The appliance is designed to be connected to an outdoor weather compensating temperature sensor. -
Page 33: Final Check And Commissioning
Final Check and Commissioning 15.1 Connecting the Power Cable and Turning the Power ON/OFF DANGER Before turning on the power, replace the controller cover to the original position. Replace the controller cover, insert and tighten the screw. Connect the power cable which is connected to the appliance to the 3 Amp fused spur. -
Page 34: Checking The Gas Settings
15.2 Checking the Gas Settings Loosen the test point "A" that is clearly marked on the diagram. Connect a digital manometer or U gauge to the test point. pressure, the boiler is set for natural gas G20 the supply pressure should be 20mb. If the supply pressure is not within the permissible range contact the gas supply company to rectify the problem. -
Page 35: Checking And Adjusting The Co 2 Value
15.4 Checking and Adjusting the CO Value As described on the data plate, this appliance is set for natural gas by default. Furthermore, this appliance can be used without adjusting the CO Subject to the WEBBER INDEX, the CO 8.9% and 9.3%. The CO adapter test point. -
Page 36: Installing The
15.5 Installing the Front Cover Replace the controller assembly. Install the front cover and secure. Controller assembly Final Check and Commissioning... -
Page 37: System Filling And Pressurising
15.6 System Filling and Pressurising Flushing New systems: The appliance is supplied with a filling loop by-law kit which must be used to fill the system. It should be connected between Method statement for cleaning and treating new domestic systems the main water inlet pipe and central heating return pipe and Procedure removed after completion. - Page 38 Flushing existing systems content is lost. This should be carried out using a Fernox Protector Where an old boiler is being replaced we recommend that the test kit. boiler as dirt and debris from the old system may cause damage 11.
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Page 39: Operational Checks
15.7 Operational Checks Check the following items with the control panel. For detailed operational procedures, refer to "Instructions for Use" for further information. Check Items Confirmation Methods Display Check whether the Press the [main ON/OFF] button. appliance works normally Check whether the display is the same as shown on the right when the power is ON. -
Page 40: Final Commissioning Check
15.8 Final Commissioning Check The trial run should be performed in accordance with the following check items. If errors occur during commissioning, error codes will be displayed on the control panel. Please refer to section 17 "Error Code List" and take the appropriate action. Activities Measured Value Remarks... -
Page 41: Instructing The End User
Instructing the End User Error Code List Explain the following error codes if the appliance malfunctions. 16.1 Handing over the Instructions The error codes will blink and be displayed on the digital control Hand over the instructions and the checklist, and explain the Panel. -
Page 42: Electrical
18.1 Wiring Diagram Electrical... -
Page 43: Parts List
Parts List 19.1 Case Parts Item No Part No. Boiler Size Description Item No Part No. Boiler Size Description ECP20001 Case ECP20010 APS (Air Pressure Sensor) ECP20002 Top bracket ECP20011 APS bracket ECP20003 Bottom bracket ECP20012 Tube ECP20004 Lock out ECP20013 Cover ECP20005... -
Page 44: Burner Parts
19.2 Burner Parts Item No Part No. Boiler Size Description Item No Part No. Boiler Size Description ECP20030 Mix chamber packing ECP30043 21/25kW Burner packing ECP20031 Mixing flow guide ECP40043 32/37kW ECP20032 Ignition trans ECP30044 21/25kW Burner Assay ECP20033 Fan packing ECP40044 32/37kW ECP20034... -
Page 45: Water Way Parts
19.3 Water Way Parts Parts List... - Page 46 Item No Part No. Boiler Size Description Item No Part No. Boiler Size Description ECP20080 Burner fixing rack ECP20101 Heating supply pipe 1 ECP70081 21kW ECP20102 Heating supply pipe assay ECP71081 25kW ECP30103 21/25kW Heat Exchanger Assembly DHW exchanger ECP72081 32kW ECP40103 32/37kW...
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Page 47: Appendix
Appendix A Gas Conversion If the type of gas needs to be converted from the one specified Replace the front cover. on the data plate, the specific “gas conversion kit” must be Put a new data plate with the correct type of gas and requested for a quick and easy conversion. - Page 48 Nozzle and Venturi Ecosave Ecosave Ecosave Ecosave Gas Type Item 21K(A) 25K(A) 32K(A) 37K(A) Ø nozzle Ø Venturi Ø nozzle Ø Venturi Gas Nozzle Pressure and Flow Rate Gas Category [ 20 mbar ] [ 37 mbar ] Model Gas Flow Gas Flow Output Input...
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Page 49: Immediate Help
Registration is simple. Just complete the Warrnaty Registration Standard Terms & Warranty Conditions Card and return to EHC Ltd within 30 days of installation. Your details will be automatically registered within the EHC Warranty 2 Years Warranty - register today Registration Scheme. - Page 50 Appendix C GAS BOILER SYSTEM COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference. Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights.
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Page 51: Service Record
SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Record is completed. Service Provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. - Page 55 Disclaimer: All details within this document are correct at the time of printing however they may be subject to change.
- Page 56 EHC Ltd. ISO 9001:2008...
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